CN113428816B - Cable trench cover opening device - Google Patents
Cable trench cover opening device Download PDFInfo
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- CN113428816B CN113428816B CN202110671655.1A CN202110671655A CN113428816B CN 113428816 B CN113428816 B CN 113428816B CN 202110671655 A CN202110671655 A CN 202110671655A CN 113428816 B CN113428816 B CN 113428816B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
- B66F19/005—Lifting devices for manhole covers
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Abstract
The invention discloses a cable trench cover plate opening device which comprises a vehicle body and a hanging plate, wherein a stand column is arranged on one side of the upper part of a chassis, a pry bar is hinged to the upper end of the stand column, a hydraulic cylinder is hinged to one side of the stand column, a connecting rod is hinged to the other end of the pry bar, the hanging plate is arranged on the lower part of the connecting rod, a hanging rod is arranged on the lower part of the supporting arm, a sliding sleeve is connected to the outer part of the hanging rod in a sliding mode, a first top plate is arranged on one side of the lower part of the hanging rod, the lower end of the first top plate is hinged to a second top plate through a second pin shaft, the lower end of the hanging rod is movably arranged on the second pin shaft through a shaft sleeve, a first connecting rod is hinged to one side of the sliding sleeve, the lower end of the first connecting rod is hinged to the inner wall of the first top plate, a second connecting rod is arranged on the other side of the sliding sleeve, and the lower end of the second connecting rod is hinged to the inner wall of the second top plate. According to the invention, the hanging plate is arranged at the front part of the vehicle body, the plurality of hanging rods are arranged at the lower part of the hanging plate, the first top plate and the second top plate are arranged at the lower part of the hanging rods, and the cable trench cover plate is pried up by utilizing the first top plate and the second top plate, so that the cable trench cover plate is prevented from being damaged.
Description
Technical Field
The invention belongs to the technical field of power maintenance, and particularly relates to a cable trench cover plate opening device.
Background
The cable trench is a trench with a cover plate, the cover plate is generally rectangular and consistent in thickness, the cover plate must be uncovered when cables are laid and maintained, and the traditional method for uncovering the cover plate is that an operator holds a crowbar to pry into a rectangular hole in the cover plate and then prys the cover plate open by force.
Because of the rectangular hole on the apron is located the both sides of apron, if adopt traditional approach to take off the lid, the operator no matter which one end of sled all is comparatively labouring, need use more strength, waste time and energy, crowbar sled apron in addition, apron rectangular hole department is the fulcrum atress big, easily leads to the rectangular hole to be pried greatly, perhaps the apron receives wearing and tearing, influences the apron and covers the cable pit once more.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a cable trench cover opening device.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a cable trench cover opening device, includes automobile body, hanger plate, the automobile body includes the chassis and sets up the removal wheel in the chassis lower part, chassis upper portion one side is equipped with the stand, the stand upper end articulates there is the pinch bar, and stand one side articulates there is the pneumatic cylinder, the piston rod of pneumatic cylinder is articulated with pinch bar one end, the pinch bar other end articulates there is the connecting rod, the hanger plate sets up in the connecting rod lower part, the four corners department of hanger plate is equipped with the support arm, and the support arm lower part is equipped with the jib, the jib outside slides and is connected with the sliding sleeve, and the jib lower part is equipped with the spacing ring, jib lower part one side is equipped with first roof, and first roof lower extreme articulates through second round pin axle has the second roof, the jib lower extreme is installed at second round pin epaxially through axle sleeve activity, sliding sleeve one side articulates there is first connecting rod, and first roof lower extreme is articulated with first roof inner wall, the sliding sleeve opposite side is equipped with the second connecting rod, and second connecting rod lower extreme is articulated with second roof inner wall.
When the cable trench cover plate is opened, the vehicle body is moved to one side of the cable trench, the piston rod of the hydraulic cylinder extends to enable the front end of the pry bar to drive the hanger plate to descend, the hanger plate drives the hanger rods at four corners to descend, the hinged position of the first top plate and the second top plate is aligned to the rectangular hole of the cable trench cover plate, the piston rod of the hydraulic cylinder continues to extend, the outer walls of the first top plate and the second top plate are contacted and collected with the rectangular hole, under the interference of the rectangular hole, the openings at the upper ends of the first top plate and the second top plate are reduced, and at the moment, the first connecting rod and the second connecting rod drive the sliding sleeve to slide towards the upper part of the hanger rods, after the top of first roof and second roof inserted the inside back of rectangular hole of cable trench cover board completely, first roof and second roof outer wall lose the interference of rectangular hole, the sliding sleeve slides down under the effect of gravity, the sliding sleeve drives first roof and second roof upper shed through first connecting rod and second connecting rod and opens, the width that the first roof and second roof upper shed width were greater than the rectangular hole this moment, then the piston rod shrink of control hydraulic cylinder, it rises to drive the hanger plate through the pinch bar, the hanger plate rises the cable trench cover board through the jib, accomplish the operation of opening of a cable trench cover board.
As a further preferred option of the technical scheme, torsion springs are arranged on two sides of the second pin shaft, one force arm of each torsion spring is in contact with the inner wall of the first top plate, and the other vertical arm of each torsion spring is in contact with the inner wall of the second top plate; the torsional spring makes first roof and second roof insert the inside back of rectangular hole and open rapidly, has improved the efficiency that the cable trench cover opened.
As a further preferred of this technical scheme, jib upper portion is fixedly connected with and keeps off the ring, it is equipped with first spring to keep off the ring lower part, and the lower extreme and the sliding sleeve upper portion of first spring link to each other, and first spring further makes first roof and second roof insert the inside back of rectangular hole and open rapidly, has improved the efficiency that cable trench cover opened, and first spring has avoided first roof and second roof suitable for reading and has closed under the unexpected state, has avoided the cable trench cover to prize the back and has dropped.
As a further preferred of this technical scheme, first roof and second roof upper end and cable trench cover parallel and level have increased the area of contact of first roof and second roof and cable trench cover, have avoided cable trench cover to damage.
As a further preferred option of this technical scheme, the spacing ring is connected with jib lower extreme threaded connection, is convenient for adjust the height of spacing ring to the height that the adjustment sliding sleeve descends, and then the opening angle of adjustment first roof and second roof suitable for reading.
As a further preferred option of this technical scheme, chassis upper portion one side is equipped with the base, the stand lower extreme passes through bearing and base swing joint, pinch bar one end is equipped with the handle, and the back is opened to the cable trench cover, rotates the handle and makes the stand rotate around the base, is convenient for shift the cable trench cover to one side of cable trench, has avoided artifical transport.
As a further preference of the technical scheme, sleeves are arranged at four corners of the hanging plate, through holes are formed in one ends of the sleeves, fixing bolts are arranged in the through holes, a plurality of uniformly arranged adjusting holes are formed in the supporting arms, and the supporting arms are arranged in the sleeves in a clearance manner; the length of the supporting arm extending out of the sleeve is adjusted according to the size of the cable trench cover plate and is fixed by the fixing bolt, so that the application range of the cable trench cover plate opening device is expanded.
As a further preferred of this technical scheme, the sleeve pipe middle part is articulated through first round pin axle and hanger plate, sleeve pipe one end is equipped with the slide bar, hanger plate four corners department is equipped with the arc spout, and the arc spout is installed inside the arc spout with first round pin axle coaxial arrangement, slide bar clearance ground, and slide bar upper portion threaded connection has adjusting nut, and according to the size of cable trench cover board and the position of rectangular hole, through the position of the first roof of rotatory sleeve adjustment jib lower extreme and second roof, the cable trench cover board of the different specifications of being convenient for or the cable trench cover board of different position rectangular holes is opened and is used.
As a further optimization of the technical scheme, the adjusting nut is a butterfly nut, so that the sleeve can be quickly fixed after being adjusted.
As a further preference of the technical scheme, the lower end of the connecting rod penetrates through the hanging plate to be provided with a connecting plate, the lower part of the connecting plate is provided with a plurality of second springs, the lower ends of the second springs are connected with a pressing plate, and the lower surface of the pressing plate in a natural state is lower than the upper surfaces of the first top plate and the second top plate in an opening state; the middle part of second spring and clamp plate to cable trench cover upper surface pushes down, makes cable trench cover centre gripping between the upper surface of first roof and second roof and the lower surface of clamp plate, has avoided cable trench cover to pry the back and has rocked and cause cable trench cover to drop.
As a further optimization of the technical scheme, the connecting rod is in clearance fit with the hanging plate, external threads are arranged on the lower portion of the connecting rod, threaded sleeves which are symmetrically arranged are connected to the connecting rod in a threaded mode, the two threaded sleeves are located on two sides of the hanging plate respectively, and the height of the connecting rod can be conveniently adjusted through the threaded sleeves, so that the extrusion force of the pressing plate can be adjusted according to the weight of the cable trench cover plate.
The invention has the beneficial effects that:
1) According to the invention, the hanging plate is arranged at the front part of the vehicle body, the plurality of hanging rods are arranged at the lower part of the hanging plate, the first top plate and the second top plate are arranged at the lower part of the hanging rods, and the cable trench cover plate is pried by utilizing the first top plate and the second top plate, so that the cable trench cover plate is prevented from being damaged.
2) Torsion springs are arranged on two sides of the second pin shaft, one force arm of each torsion spring is in contact with the inner wall of the first top plate, and the other vertical arm of each torsion spring is in contact with the inner wall of the second top plate; the torsional spring makes first roof and second roof insert the inside back of rectangular hole and open rapidly, has improved the efficiency that the cable trench cover opened.
3) Jib upper portion is connected with fixedly and keeps off the ring, keeps off the ring lower part and is equipped with first spring, and the lower extreme of first spring links to each other with sliding sleeve upper portion, and first spring further makes first roof and second roof insert the rectangle downthehole back and open rapidly, has improved the efficiency that the cable trench cover was opened, and first spring has avoided first roof and second roof suitable for reading to be closed under unexpected state, has avoided the cable trench cover to prize the back and has dropped.
4) First roof and second roof upper end and cable trench cover parallel and level have increased the area of contact of first roof and second roof and cable trench cover, have avoided cable trench cover to damage.
5) The limiting ring is in threaded connection with the lower end of the suspender, so that the height of the limiting ring can be conveniently adjusted, the descending height of the sliding sleeve can be adjusted, and the opening angle of the upper opening of the first top plate and the second top plate can be adjusted
6) Chassis upper portion one side is equipped with the base, and the stand lower extreme passes through bearing and base swing joint, and pinch bar one end is equipped with the handle, and the back is opened to the cable trench cover board, rotates the handle and makes the stand rotate around the base, is convenient for shift cable trench cover board to one side of cable pit, has avoided artifical transport.
7) The four corners of the hanging plate are provided with sleeves, one end of each sleeve is provided with a through hole, a fixing bolt is arranged in each through hole, the supporting arm is provided with a plurality of uniformly arranged adjusting holes, and the supporting arms are arranged in the sleeves in a clearance manner; the length of the supporting arm extending out of the sleeve is adjusted according to the size of the cable trench cover plate and is fixed by the fixing bolt, so that the application range of the cable trench cover plate opening device is expanded.
8) The middle part of the sleeve is hinged with the hanging plate through a first pin shaft, one end of the sleeve is provided with a sliding rod, four corners of the hanging plate are provided with arc sliding grooves, the arc sliding grooves and the first pin shaft are coaxially arranged, the sliding rod is arranged in the arc sliding grooves in a clearance mode, the upper part of the sliding rod is in threaded connection with an adjusting nut, the positions of a first top plate and a second top plate at the lower end of the suspender are adjusted through rotating the sleeve according to the size of the cable trench cover plate and the position of the rectangular hole, and the cable trench cover plates with different specifications or cable trench cover plates with rectangular holes at different positions can be conveniently opened and used; the adjusting nut adopts a butterfly nut, so that the sleeve can be quickly fixed after being adjusted.
9) The lower end of the connecting rod penetrates through the hanging plate to be provided with a connecting plate, the lower part of the connecting plate is provided with a plurality of second springs, the lower ends of the second springs are connected with a pressing plate, and the lower surface of the pressing plate in a natural state is lower than the upper surfaces of the first top plate and the second top plate in an opening state; the middle part of second spring and clamp plate to cable trench cover upper surface pushes down, makes cable trench cover centre gripping between the upper surface of first roof and second roof and the lower surface of clamp plate, has avoided cable trench cover to pry the back and has rocked and cause cable trench cover to drop.
10 The connecting rod is in clearance fit with the hanging plate, external threads are arranged at the lower part of the connecting rod, threaded sleeves which are symmetrically arranged are connected onto the connecting rod in a threaded manner, the two threaded sleeves are respectively positioned at two sides of the hanging plate, and the threaded sleeves are convenient for adjusting the height of the connecting rod, so that the extrusion force of the pressing plate is adjusted according to the weight of the cable trench cover plate.
Drawings
Fig. 1 is a using state diagram of the cable trench cover opening device of the invention.
Fig. 2 is a schematic structural view of a cable trench cover opening device of the present invention.
Fig. 3 is a schematic view of the installation of a pry bar in the cable trench cover opening device of the invention.
Fig. 4 is a schematic view of the assembly of a hanger plate and a hanger rod in the cable trench cover opening device of the present invention.
Fig. 5 is a side view showing an assembly of a hanger plate and a hanger bar in the cable trench cover opening apparatus according to the present invention.
Fig. 6 is an exploded view of a support arm and a sleeve in the cable trench cover opening device of the present invention.
Fig. 7 is a schematic view illustrating the assembly of the first top plate and the second top plate in the cable trench cover opening device according to the present invention.
Fig. 8 is an exploded view of the assembly of the first top plate and the second top plate in the cable trench cover opening device of the present invention.
In the figure: 1. a chassis; 2. a moving wheel; 3. a base; 4. a column; 5. a pry bar; 6. a handle; 7. a hydraulic cylinder; 8. a connecting rod; 9. a threaded sleeve; 10. a hanger plate; 11. an arc-shaped chute; 12. a support arm; 13. an adjustment hole; 14. a sleeve; 15. a through hole; 16. fixing the bolt; 17. a first pin shaft; 18. a slide bar; 19. adjusting the nut; 20. a boom; 21. a first top plate; 22. a second top plate; 23. a second pin shaft; 24. a shaft sleeve; 25. a sliding sleeve; 26. a first link; 27. a second link; 28. a torsion spring; 29. a limiting ring; 30. a first spring; 31. a baffle ring; 32. a connecting plate; 33. a second spring; 34. pressing a plate; 35. cable trench cover board.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 8, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, a particular orientation configuration and operation, and therefore, are not to be construed as limiting the present invention.
As shown in fig. 1-4 and 7-8, a cable trench cover opening device comprises a vehicle body and a hanging plate 10, wherein the vehicle body comprises a chassis 1 and a movable wheel 2 arranged at the lower part of the chassis 1, one side of the upper part of the chassis 1 is provided with a stand column 4, the upper end of the stand column 4 is hinged with a pry bar 5, one side of the stand column 4 is hinged with a hydraulic cylinder 7, a piston rod of the hydraulic cylinder 7 is hinged with one end of the pry bar 5, the other end of the pry bar 5 is hinged with a connecting rod 8, the hanging plate 10 is arranged at the lower part of the connecting rod 8, four corners of the hanging plate 10 are provided with supporting arms 12, the lower part of the supporting arms 12 is provided with hanging rods 20, the outer parts of the hanging rods 20 are connected with a sliding sleeve 25 in a sliding manner, the lower parts of the hanging rods 20 are provided with limit rings 29, one side of the lower parts of the hanging rods 20 is provided with a first top plate 21, the lower end of the first top plate 21 is hinged with a second top plate 22 through a second pin 23, the lower end of the hanging rod 20 is movably arranged on a shaft sleeve 24, one side of the sliding sleeve 23, one side of the sliding sleeve 25 is hinged with a first connecting rod 26, the lower end of the first connecting rod 26 is hinged with the inner wall of the first top plate 21, the other side of the sliding sleeve 25 is provided with a second connecting rod 27, and the lower end of the second connecting rod 27, and the second connecting rod 27 is hinged with the inner wall 22.
When the cable trench cover 35 is opened, the vehicle body is moved to one side of the cable trench, a piston rod of the hydraulic cylinder 7 extends, so that the front end of the pry bar 5 drives the hanger plate 10 to descend, the hanger plate 10 drives the hanger rods 20 at the four corners to descend, and the hinged part of the first top plate 21 and the second top plate 22 is aligned with the rectangular holes of the cable trench cover 35, the piston rod of the hydraulic cylinder 7 continues to extend, the outer walls of the first top plate 21 and the second top plate 22 are contacted and retracted with the rectangular holes, under the interference of the rectangular holes, the openings at the upper ends of the first top plate 21 and the second top plate 22 are reduced, at this time, the first connecting rod 26 and the second connecting rod 27 drive the sliding sleeve 25 to slide towards the upper part of the hanger rod 20, after the tops of the first top plate 21 and the second top plate 22 are completely inserted into the rectangular holes of the cable trench cover 35, the sliding sleeve 25 slides downwards under the action of gravity, the sliding sleeve 25 drives the upper openings of the first top plate 21 and the second top plate 22 to be opened through the first connecting rod 26 and the second connecting rod 27, at this time, the width of the upper end of the first top plate 21 and the second top plate 22 is larger than the width of the lifting of the hanger rod 10 of the hydraulic cylinder 7, and then the lifting operation of the hanger rod 5 is controlled by the lifting rod 10.
As shown in fig. 7-8, in this embodiment, torsion springs 28 are disposed on two sides of the second pin 23, one arm of the torsion spring 28 is in contact with the inner wall of the first top plate 21, and the other vertical arm of the torsion spring 28 is in contact with the inner wall of the second top plate 22; the torsion spring 28 enables the first top plate 21 and the second top plate 22 to be rapidly opened after being inserted into the rectangular holes, and the opening efficiency of the cable trench cover 35 is improved.
As shown in fig. 7-8, in this embodiment, a stop ring 31 is fixedly connected to an upper portion of the suspension rod 20, a first spring 30 is disposed at a lower portion of the stop ring 31, a lower end of the first spring 30 is connected to an upper portion of the sliding sleeve 25, the first spring 30 further enables the first top plate 21 and the second top plate 22 to be inserted into the rectangular hole and then opened rapidly, so that the efficiency of opening the cable trench cover 35 is improved, the first spring 30 prevents the upper openings of the first top plate 21 and the second top plate 22 from being closed in an unexpected state, and the cable trench cover 35 is prevented from being pried and dropped.
As shown in fig. 7, in the present embodiment, the upper ends of the first top plate 21 and the second top plate 22 are flush with the cable trench cover 35, so that the contact area between the first top plate 21 and the cable trench cover 35 is increased, and the cable trench cover 35 is prevented from being damaged.
As shown in fig. 8, in this embodiment, the stop ring 29 is screwed to the lower end of the suspension rod 20, so that the height of the stop ring 29, and thus the height of the sliding sleeve 25, can be adjusted, and the opening angle of the upper openings of the first top plate 21 and the second top plate 22 can be adjusted.
As shown in fig. 1-2, in this embodiment, base 3 is arranged on one side of upper portion of chassis 1, the lower end of upright 4 is movably connected with base 3 through a bearing, a handle 6 is arranged at one end of prying bar 5, and after cable trench cover plate 35 is opened, handle 6 is rotated to rotate upright 4 around base 3, so that cable trench cover plate 35 is transferred to one side of the cable trench, and manual carrying is avoided.
As shown in fig. 4 and 6, in the present embodiment, sleeves 14 are disposed at four corners of the hanging plate 10, a through hole 15 is disposed at one end of each sleeve 14, a fixing bolt 16 is disposed inside each through hole 15, a plurality of adjusting holes 13 uniformly arranged are disposed on the supporting arm 12, and the supporting arm 12 is mounted inside each sleeve 14 with a gap; the length of the supporting arm 12 extending out of the sleeve 14 is adjusted according to the size of the cable trench cover 35 and is fixed by the fixing bolt 16, so that the application range of the cable trench cover opening device is expanded.
As shown in fig. 4 and 6, in this embodiment, the middle of the sleeve 14 is hinged to the hanger plate 10 through a first pin 17, one end of the sleeve 14 is provided with a slide rod 18, four corners of the hanger plate 10 are provided with arc-shaped slide slots 11, the arc-shaped slide slots 11 are coaxially arranged with the first pin 17, the slide rods 18 are installed inside the arc-shaped slide slots 11 at intervals, the upper portions of the slide rods 18 are in threaded connection with adjusting nuts 19, and the positions of the first top plate 21 and the second top plate 22 at the lower end of the hanger rod 20 are adjusted by rotating the sleeve 14 according to the size of the cable trench cover 35 and the positions of the rectangular holes, so that the cable trench covers 35 of different specifications or the cable trench covers 35 of the rectangular holes at different positions can be conveniently opened for use; the adjusting nut 19 is a butterfly nut, so that the sleeve 14 can be quickly fixed after being adjusted.
As shown in fig. 5, in this embodiment, the lower end of the connecting rod 8 penetrates through the hanging plate 10 to be provided with a connecting plate 32, the lower part of the connecting plate 32 is provided with a plurality of second springs 33, the lower ends of the second springs 33 are connected with a pressing plate 34, and the lower surface of the pressing plate 34 in a natural state is lower than the upper surface of the first top plate 21 and the second top plate 22 in an open state; the second spring 33 and the pressing plate 34 press the middle of the upper surface of the cable trench cover plate 35 downwards, so that the cable trench cover plate 35 is clamped between the upper surfaces of the first top plate 21 and the second top plate 22 and the lower surface of the pressing plate 34, and the cable trench cover plate 35 is prevented from falling off due to shaking after the cable trench cover plate 35 is pried.
As shown in fig. 4-5, in the present embodiment, the connecting rod 8 is in clearance fit with the hanging plate 10, the lower portion of the connecting rod 8 is provided with external threads, the connecting rod 8 is screwed with symmetrically arranged threaded sleeves 9, and the two threaded sleeves 9 are respectively located at two sides of the hanging plate 10, and the threaded sleeves 9 facilitate adjusting the height of the connecting rod 8, so as to adjust the pressing force of the pressing plate 34 according to the weight of the cable trench cover 35.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (8)
1. A cable trench cover opening device comprises a vehicle body and a hanging plate, wherein the vehicle body comprises a chassis and moving wheels arranged at the lower part of the chassis, and the cable trench cover opening device is characterized in that a stand column is arranged at one side of the upper part of the chassis, a pry bar is hinged at the upper end of the stand column, a hydraulic cylinder is hinged at one side of the stand column, a piston rod of the hydraulic cylinder is hinged with one end of the pry bar, a connecting rod is hinged at the other end of the pry bar, the hanging plate is arranged at the lower part of the connecting rod, supporting arms are arranged at four corners of the hanging plate, a hanging rod is arranged at the lower part of the supporting arms, a sliding sleeve is connected outside the hanging rod in a sliding manner, a limiting ring is arranged at the lower part of the hanging rod, a first top plate is arranged at one side of the lower part of the hanging rod, the lower end of the first top plate is hinged with a second top plate through a second pin shaft sleeve, a first connecting rod is hinged at one side of the sliding sleeve, the lower end of the first connecting rod is hinged with the inner wall of the first top plate, a second connecting rod is arranged at the other side of the sliding sleeve, and the lower end of the second connecting rod is hinged with the inner wall of the second top plate; the lower end of the connecting rod penetrates through the hanging plate to be provided with a connecting plate, the lower part of the connecting plate is provided with a plurality of second springs, the lower ends of the second springs are connected with a pressing plate, and the lower surface of the pressing plate in a natural state is lower than the upper surfaces of the first top plate and the second top plate in an opening state; the connecting rod is in clearance fit with the hanging plate, external threads are arranged at the lower part of the connecting rod, threaded sleeves which are symmetrically arranged are connected to the connecting rod in a threaded manner, and the two threaded sleeves are respectively positioned at two sides of the hanging plate; the four corners of the hanging plate are provided with arc-shaped sliding grooves which are coaxially arranged with the first pin shaft, the sliding rods are arranged in the arc-shaped sliding grooves in a clearance mode, and the upper portions of the sliding rods are in threaded connection with adjusting nuts; the adjusting nut is a butterfly nut.
2. The cable trench cover opening device according to claim 1, wherein torsion springs are disposed on two sides of the second pin shaft, one force arm of each torsion spring is in contact with the inner wall of the first top plate, and the other vertical arm of each torsion spring is in contact with the inner wall of the second top plate.
3. The cable trench cover opening device according to claim 1, wherein a stop ring is fixedly connected to an upper portion of the suspension rod, a first spring is disposed at a lower portion of the stop ring, and a lower end of the first spring is connected to an upper portion of the sliding sleeve.
4. The cable duct cover opening device of claim 1, wherein the upper ends of the first top plate and the second top plate are flush with the cable duct cover.
5. The cable trench cover opening device of claim 1, wherein the stop collar is threadedly coupled to the lower end of the hanger rod.
6. The cable trench cover opening device according to claim 1, wherein a base is provided at one side of the upper portion of the chassis, the lower end of the upright post is movably connected to the base through a bearing, and a handle is provided at one end of the pry bar.
7. The cable trench cover opening device of any one of claims 1 to 6, wherein the hanging plate is provided with a sleeve at four corners, one end of the sleeve is provided with a through hole, a fixing bolt is arranged in the through hole, the supporting arm is provided with a plurality of adjusting holes which are uniformly arranged, and the supporting arm is arranged in the sleeve at intervals.
8. The cable duct cover opening device of claim 7, wherein the middle portion of the sleeve is hinged to the hanging plate through a first pin, and a sliding rod is disposed at one end of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671655.1A CN113428816B (en) | 2021-06-17 | 2021-06-17 | Cable trench cover opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110671655.1A CN113428816B (en) | 2021-06-17 | 2021-06-17 | Cable trench cover opening device |
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| Publication Number | Publication Date |
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| CN113428816A CN113428816A (en) | 2021-09-24 |
| CN113428816B true CN113428816B (en) | 2022-10-14 |
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| CN202110671655.1A Active CN113428816B (en) | 2021-06-17 | 2021-06-17 | Cable trench cover opening device |
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| CN113979391B (en) * | 2021-10-27 | 2023-03-24 | 国网山东省电力公司建设公司 | Cable trench cover opening device |
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| CN211225995U (en) * | 2020-01-01 | 2020-08-11 | 魏明 | Special hook for cover plate of indoor cable trench of transformer substation |
| CN111408883A (en) * | 2020-04-28 | 2020-07-14 | 浙江大地钢结构有限公司 | Adjustable positioning support for welding special-shaped nodes of steel members |
| CN111620282A (en) * | 2020-05-26 | 2020-09-04 | 马良荣 | Municipal works construction is mentioned device with well lid |
| CN112607626B (en) * | 2020-12-08 | 2022-07-01 | 国网山东省电力公司曹县供电公司 | Cable trench cover dismouting device |
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2021
- 2021-06-17 CN CN202110671655.1A patent/CN113428816B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444909A (en) * | 2014-12-10 | 2015-03-25 | 国家电网公司 | Trolley type cable well lid opener |
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| CN113428816A (en) | 2021-09-24 |
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