CN112736810A - Feeder line card with multiple specification cable hole - Google Patents
Feeder line card with multiple specification cable hole Download PDFInfo
- Publication number
- CN112736810A CN112736810A CN202011523937.9A CN202011523937A CN112736810A CN 112736810 A CN112736810 A CN 112736810A CN 202011523937 A CN202011523937 A CN 202011523937A CN 112736810 A CN112736810 A CN 112736810A
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- Prior art keywords
- plate
- fixed
- screw
- screw rod
- baffle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
- H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- 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
- H02G3/02—Details
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention discloses a feeder line card with cable holes of various specifications, which comprises a fixed frame, fixed plates and a connecting plate, wherein one side of the fixed frame is inserted with a first screw rod, one end of the first screw rod penetrates through the fixed frame and is connected with a clamping plate in a rotating way, the other side of the fixed frame is fixedly connected with a second screw rod, and the middle part of the periphery of the second screw rod is sleeved with a plurality of fixed plates; according to the invention, the fixing plate, the connecting plate and the fixing block are arranged, different cables are placed in the first groove, then the connecting plate is rotated, the fixing block on the connecting plate is inserted into the slot on the fixing plate, and the screw and the threaded hole are in threaded connection from one side of the fixing plate, so that a plurality of cables can be clamped and fixed at one time, the labor amount is reduced, the working efficiency is improved, the plurality of cables can be fixed from one side of the feeder line clamp, the operating space is large, the operation of workers is facilitated, and convenience is brought to the operators.
Description
Technical Field
The invention relates to the technical field of feeder clamps, in particular to a feeder clamp with cable holes of various specifications.
Background
The feeder clamp is used as a fixing device, is suitable for communication base stations, repeaters, indoor coverage systems, wireless paging and microwave communication systems, plays a role in fixing the distribution of transmission cables in iron towers, wiring racks, indoor and outdoor places, subways and tunnels, and can be used in different high and low temperature ranges. Feeder card has economical and practical, sturdy and durable, fixes a position characteristics such as reliable, so can extensive use in many communication engineering, current feeder card that has multiple specification cable hole still has some not enoughly, for example:
feeder card of multiple specification among the prior art need carry out the centre gripping to each cable when fixed, and it is fixed to have not only increased the amount of labour, has reduced the efficiency of work to feeder card to many specifications, because the fixed cable of centre gripping is more at every turn, operating space is narrow and small, and staff's operation is not convenient for brings the trouble for operating personnel.
Disclosure of Invention
The present invention is directed to a feeder card having cable holes of various specifications to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a feeder card with multiple specification cable hole, includes mount, fixed plate, connecting plate, it has first screw rod to peg graft in one side of mount, the one end of first screw rod is passed the mount rotates and is connected with the grip block, the opposite side fixedly connected with second screw rod of mount, a plurality of fixed plate has been cup jointed at the peripheral middle part of second screw rod, the fixed plate with the connection can be dismantled to the second screw rod, the peripheral one end threaded connection of second screw rod has the stopper, the one end of fixed plate articulates there is the connecting plate, the first recess of a plurality of has been seted up to the upper surface of fixed plate, a plurality of second recess has been seted up to the lower surface relevant position department of connecting plate, the connecting plate with the connection can be dismantled to the other end of fixed plate, one side of fixed plate is close to.
Preferably, the first groove and the second groove enclose a circular structure.
Preferably, the other end fixedly connected with fixed block of connecting plate, the fixed block with the relevant position department of fixed plate all sets up threaded hole, the slot has been seted up to the other end of fixed plate upper surface, the fixed block with the slot is pegged graft, threaded hole threaded connection has the screw, the fixed plate with the other end of connecting plate passes through the screw can be dismantled and be connected.
Preferably, a rubber layer is adhered to the inner walls of the first groove and the second groove.
Preferably, the fixing frame is of a U-shaped structure.
Preferably, the clamping structure still includes baffle, stripper plate and third screw rod, a plurality of recess and through-hole have been seted up to one side of fixed plate, the recess with the fixed baffle that is provided with between the through-hole, the peripheral fixed a plurality of link that is provided with of baffle, threaded connection has the third screw rod on the link, the one end of third screw rod is passed the baffle rotates and is connected with the stripper plate, the link with between the baffle spring and limiting plate have been cup jointed on the third screw rod, the third screw rod with the spring with the equal sliding connection of limiting plate.
Preferably, the connecting frame and the extrusion plate are respectively provided with six, and the six connecting frames and the six extrusion plates are uniformly distributed.
Preferably, the extrusion plates are of arc structures, and six extrusion plates are enclosed to form a circular structure.
Preferably, the connecting frame is of a U-shaped structure, and the baffle is of a circular structure.
Preferably, a bearing is embedded in one end, penetrating through the baffle, of the third screw, one end of the extrusion plate penetrates through the bearing, and the extrusion plate is fixedly connected with the bearing.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fixing plate, the connecting plate and the fixing block are arranged, different cables are placed in the first groove, then the connecting plate is rotated, the fixing block on the connecting plate is inserted into the slot on the fixing plate, and the screw and the threaded hole are in threaded connection from one side of the fixing plate, so that a plurality of cables can be clamped and fixed at one time, the labor amount is reduced, the working efficiency is improved, and for feeder clamps with multiple specifications, a plurality of cables can be fixed from one side of the feeder clamp, the operating space is large, the operation of workers is facilitated, and convenience is brought to the operators.
2. The invention is provided with the extrusion plate, the spring and the connecting frame, and for the cable clamps with multiple specifications, a plurality of cables are fixed at one time, and for the cables needing to be fixed independently, the cables can also be directly penetrated through the through hole on one side of the fixing plate to clamp and fix the cables, and the cables with different diameters can be clamped and fixed.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic expanded view of the first embodiment of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of the structure of FIG. 1 at C according to the present invention;
FIG. 6 is an enlarged view of the structure shown in FIG. 5.
In the figure: 1-a fixed mount; 2-a first screw; 3-clamping the plate; 4, fixing a plate; 41-a first groove; 42-screws; 5-connecting plates; 51-a second groove; 52-fixed block; 53-threaded holes; 6-a limiting block; 7-a second screw; 8-a clamping structure; 81-groove; 82-a baffle; 83-a squeeze plate; 84-a third screw; 85-a connecting frame; 86-a spring; 87-limiting plate; 88-through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-4, the present invention provides a technical solution: a feeder line card with cable holes of various specifications comprises a fixed frame 1, fixed plates 4 and a connecting plate 5, wherein a first screw 2 is inserted into one side of the fixed frame 1, one end of the first screw 2 penetrates through the fixed frame 1 to be rotatably connected with a clamping plate 3, one end of the first screw 2 is rotatably connected with the clamping plate 3 through a bearing, the other side of the fixed frame 1 is fixedly connected with a second screw 7, the middle part of the periphery of the second screw 7 is sleeved with a plurality of fixed plates 4, the fixed plates 4 are detachably connected with the second screw 7, one end of the periphery of the second screw 7 is in threaded connection with a limiting block 6, one end of each fixed plate 4 is hinged with the connecting plate 5, the upper surface of each fixed plate 4 is provided with a plurality of first grooves 41, the corresponding positions of the lower surface of the connecting plate 5 are provided with a plurality of second grooves 51, and the connecting plate 5 is detachably connected with the other, the fixing frame is characterized in that a plurality of clamping structures 8 are arranged on one side of the fixing plate 4 close to the bottom end, a circular structure is formed by enclosing the first groove 41 and the second groove 51, a fixing block 52 is fixedly connected to the other end of the connecting plate 5, threaded holes 53 are formed in the corresponding positions of the fixing block 52 and the fixing plate 4, a slot is formed in the other end of the upper surface of the fixing plate 4, the fixing block 52 is inserted into the slot, a screw 42 is connected to the threaded hole 53 in a threaded manner, the fixing plate 4 is detachably connected with the other end of the connecting plate 5 through the screw 42, rubber layers are adhered to the inner walls of the first groove 41 and the second groove 51, the fixing frame 1 is in a U-shaped structure, when the fixing frame is used, the diameter size of the circular structure formed by enclosing the plurality of first grooves 41 and the second groove 51 can be the same or different, and the number of the first groove, through placing different cables in first recess 41, then rotate connecting plate 5, peg graft fixed block 52 on the connecting plate 5 with the slot on the fixed plate 4, from one side of fixed plate 4 with screw 42 and screw hole 53 threaded connection can, once can carry out the centre gripping with a plurality of cable and fix, the amount of labour has not only been reduced, the efficiency of work has been improved, and to the feeder card of many specifications, can be fixed a plurality of cables from one side of feeder card, operating space is bigger, the staff's of being convenient for operation, bring convenience for operating personnel.
Example two:
referring to fig. 1-6, the present invention provides a technical solution: a feeder line card with cable holes of various specifications comprises a fixed frame 1, fixed plates 4 and a connecting plate 5, wherein a first screw 2 is inserted into one side of the fixed frame 1, one end of the first screw 2 penetrates through the fixed frame 1 to be rotatably connected with a clamping plate 3, one end of the first screw 2 is rotatably connected with the clamping plate 3 through a bearing, the other side of the fixed frame 1 is fixedly connected with a second screw 7, the middle part of the periphery of the second screw 7 is sleeved with a plurality of fixed plates 4, the fixed plates 4 are detachably connected with the second screw 7, one end of the periphery of the second screw 7 is in threaded connection with a limiting block 6, one end of each fixed plate 4 is hinged with the connecting plate 5, the upper surface of each fixed plate 4 is provided with a plurality of first grooves 41, the corresponding positions of the lower surface of the connecting plate 5 are provided with a plurality of second grooves 51, and the connecting plate 5 is detachably connected with the other, the fixing frame is characterized in that a plurality of clamping structures 8 are arranged on one side of the fixing plate 4 close to the bottom end, a circular structure is formed by enclosing the first groove 41 and the second groove 51, a fixing block 52 is fixedly connected to the other end of the connecting plate 5, threaded holes 53 are formed in the corresponding positions of the fixing block 52 and the fixing plate 4, a slot is formed in the other end of the upper surface of the fixing plate 4, the fixing block 52 is inserted into the slot, a screw 42 is connected to the threaded hole 53 in a threaded manner, the fixing plate 4 is detachably connected with the other end of the connecting plate 5 through the screw 42, rubber layers are adhered to the inner walls of the first groove 41 and the second groove 51, the fixing frame 1 is in a U-shaped structure, when the fixing frame is used, the diameter size of the circular structure formed by enclosing the plurality of first grooves 41 and the second groove 51 can be the same or different, and the number of the first groove, different cables are placed in the first groove 41, then the connecting plate 5 is rotated, the fixing block 52 on the connecting plate 5 is inserted into the slot on the fixing plate 4, the screw 42 and the threaded hole 53 are in threaded connection from one side of the fixing plate 4, and a plurality of cables can be clamped and fixed at one time, so that the labor capacity is reduced, the working efficiency is improved, and for feeder cards with multiple specifications, a plurality of cables can be fixed from one side of the feeder card, the operating space is large, the operation of workers is convenient, and the workers are convenient to operate, the clamping structure 8 further comprises a baffle 82, an extrusion plate 83 and a third screw 84, a plurality of grooves 81 and through holes 88 are formed in one side of the fixing plate 4, the baffle 82 is fixedly arranged between the grooves 81 and the through holes 88, a plurality of connecting frames 85 are fixedly arranged on the periphery of the baffle 82, and third screws 84 are in threaded connection with the connecting frames 85, the one end of third screw 84 passes baffle 82 rotates and is connected with stripper plate 83, link 85 with between the baffle 82 spring 86 and limiting plate 87 have been cup jointed on the third screw 84, third screw 84 with spring 86 with the equal sliding connection of limiting plate 87, link 85 with stripper plate 83 is provided with six respectively, six link 85 and six stripper plate 83 evenly distributed, stripper plate 83 is the arc structure, six stripper plate 83 encloses synthetic circular structure, link 85 is the U type structure, baffle 82 is circular structure, third screw 84 passes the one end of baffle 82 is inlayed and is had the bearing, the one end of stripper plate 83 passes the bearing, stripper plate 83 with bearing fixed connection, to the cable card of many specifications, when once fixing a plurality of cables, for cables needing to be independently fixed, the cables can be directly penetrated through the through holes 85 on one side of the fixing plate 4 to clamp and fix the cables, the cables with different diameters can be clamped and fixed, when the cables penetrate through the through holes 85, the third screw 84 is rotated, the third screw 84 can push the extrusion plate 83 to move forwards, the cables can be clamped and fixed, and when the third screw 84 is rotated, the spring 86 can be extruded, so that the spring 86 is compressed, a damping effect can be achieved, the service life of the feeder clamp is prolonged, cable fixing modes of the feeder clamp can be increased, the using functions of the feeder clamp with multiple specifications are increased, and different using requirements are met.
The working principle is as follows: when in use, the clamping plate 3 can be pushed to move towards the other side of the fixing frame 1 by rotating the first screw rod 2, the feeder line card can be clamped and fixed, different cables are placed in the first groove 41, then the connecting plate 5 is rotated, the fixing block 52 on the connecting plate 5 is inserted into the slot on the fixing plate 4, the screw 42 and the threaded hole 53 are in threaded connection from one side of the fixing plate 4, a plurality of cables can be clamped and fixed at one time, the labor capacity is reduced, the working efficiency is improved, for the feeder line cards with multiple specifications, the cables can be fixed from one side of the feeder line card, the operating space is large, the operation of workers is convenient, the convenience is brought to the operators, for the cables needing to be fixed independently while the cables with multiple specifications are fixed at one time, the cables can also be directly passed through the through hole 85 on one side of the fixing plate 4 to clamp and fix the cables, and can carry out the centre gripping to the cable of different diameter sizes fixedly, pass through-hole 85 as the cable, rotate third screw 84, third screw 84 can promote stripper plate 83 forward motion, and then can be fixed to the cable centre gripping, and when rotating third screw 84, can cause the extrusion to spring 86, thereby make spring 86 compressed, and then can play the absorbing effect, the life of feeder card has been prolonged, and the mode of the fixed cable of feeder card can be increased, the service function of the feeder card of many specifications has been increased, satisfy different user demands.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A feeder card having multiple gauge cable holes, comprising:
a fixed frame (1);
a fixed plate (4);
a connecting plate (5);
wherein, one side of the fixed frame (1) is inserted with a first screw (2), one end of the first screw (2) passes through the fixed frame (1) and is rotatably connected with a clamping plate (3), the other side of the fixed frame (1) is fixedly connected with a second screw (7), the middle part of the periphery of the second screw (7) is sleeved with a plurality of fixed plates (4), the fixed plates (4) are detachably connected with the second screw (7), one end of the periphery of the second screw (7) is in threaded connection with a limiting block (6), one end of each fixed plate (4) is hinged with a connecting plate (5), the upper surface of each fixed plate (4) is provided with a plurality of first grooves (41), the corresponding position of the lower surface of each connecting plate (5) is provided with a plurality of second grooves (51), and the connecting plate (5) is detachably connected with the other end of the fixed plates (4), one side of the fixed plate (4) is provided with a plurality of clamping structures (8) near the bottom end.
2. The feeder card having multi-gauge cable holes of claim 1, wherein: the first groove (41) and the second groove (51) enclose a circular structure.
3. The feeder card having multi-gauge cable holes of claim 1, wherein: the other end fixedly connected with fixed block (52) of connecting plate (5), fixed block (52) with threaded hole (53) have all been seted up to the relevant position department of fixed plate (4), the slot has been seted up to the other end of fixed plate (4) upper surface, fixed block (52) with the slot is pegged graft, threaded hole (53) threaded connection has screw (42), fixed plate (4) with the other end of connecting plate (5) passes through screw (42) can be dismantled and be connected.
4. The feeder card having multi-gauge cable holes of claim 2, wherein: rubber layers are adhered to the inner walls of the first groove (41) and the second groove (51).
5. The feeder card having multi-gauge cable holes of claim 1, wherein: the fixing frame (1) is of a U-shaped structure.
6. The feeder card having multi-gauge cable holes of claim 1, wherein: clamping structure (8) still include baffle (82), stripper plate (83) and third screw rod (84), a plurality of recess (81) and through-hole (88) have been seted up to one side of fixed plate (4), recess (81) with fixed baffle (82) that is provided with between through-hole (88), the fixed a plurality of link (85) that is provided with in periphery of baffle (82), threaded connection has third screw rod (84) on link (85), the one end of third screw rod (84) is passed baffle (82) rotate and are connected with stripper plate (83), link (85) with between baffle (82) spring (86) and limiting plate (87) have been cup jointed on third screw rod (84), third screw rod (84) with spring (86) with the equal sliding connection of limiting plate (87).
7. The feeder card having multi-gauge cable holes of claim 6, wherein: the connecting frame (85) and the extrusion plate (83) are respectively provided with six, and the six connecting frames (85) and the six extrusion plates (83) are uniformly distributed.
8. The feeder card having multi-gauge cable holes of claim 6, wherein: the extrusion plate (83) is of an arc-shaped structure, and six extrusion plates (83) enclose a circular structure.
9. The feeder card having multi-gauge cable holes of claim 6, wherein: the connecting frame (85) is of a U-shaped structure, and the baffle (82) is of a circular structure.
10. The feeder card having multi-gauge cable holes of claim 6, wherein: a bearing is embedded in one end, penetrating through the baffle plate (82), of the third screw rod (84), one end of the extrusion plate (83) penetrates through the bearing, and the extrusion plate (83) is fixedly connected with the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011523937.9A CN112736810A (en) | 2020-12-22 | 2020-12-22 | Feeder line card with multiple specification cable hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011523937.9A CN112736810A (en) | 2020-12-22 | 2020-12-22 | Feeder line card with multiple specification cable hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112736810A true CN112736810A (en) | 2021-04-30 |
Family
ID=75605132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011523937.9A Pending CN112736810A (en) | 2020-12-22 | 2020-12-22 | Feeder line card with multiple specification cable hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112736810A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438281A (en) * | 2013-05-29 | 2013-12-11 | 江苏华灿电讯股份有限公司 | Feeder clamp with cable holes of multiple specifications |
| CN106979242A (en) * | 2017-05-21 | 2017-07-25 | 响水星火传动件有限公司 | A kind of adjustable bearing block |
| CN107387880A (en) * | 2017-07-20 | 2017-11-24 | 成都聚芯光科通信设备有限责任公司 | It is easy to adjust the anchor ear type feeder clamp of caliber |
| CN209267068U (en) * | 2018-12-17 | 2019-08-16 | 南通科技职业学院 | A kind of cable fixing device of electromechanical equipment |
| CN110900487A (en) * | 2019-12-05 | 2020-03-24 | 中国电建集团河北工程有限公司 | Clamping device of electric power overhaul tool |
| CN210490330U (en) * | 2019-09-30 | 2020-05-08 | 上海星羿电气有限公司 | Bridge structure for electric power tunnel |
-
2020
- 2020-12-22 CN CN202011523937.9A patent/CN112736810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438281A (en) * | 2013-05-29 | 2013-12-11 | 江苏华灿电讯股份有限公司 | Feeder clamp with cable holes of multiple specifications |
| CN106979242A (en) * | 2017-05-21 | 2017-07-25 | 响水星火传动件有限公司 | A kind of adjustable bearing block |
| CN107387880A (en) * | 2017-07-20 | 2017-11-24 | 成都聚芯光科通信设备有限责任公司 | It is easy to adjust the anchor ear type feeder clamp of caliber |
| CN209267068U (en) * | 2018-12-17 | 2019-08-16 | 南通科技职业学院 | A kind of cable fixing device of electromechanical equipment |
| CN210490330U (en) * | 2019-09-30 | 2020-05-08 | 上海星羿电气有限公司 | Bridge structure for electric power tunnel |
| CN110900487A (en) * | 2019-12-05 | 2020-03-24 | 中国电建集团河北工程有限公司 | Clamping device of electric power overhaul tool |
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Application publication date: 20210430 |