CN115241820B - Support frame for box connection in power cable laying construction process - Google Patents
Support frame for box connection in power cable laying construction process Download PDFInfo
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- CN115241820B CN115241820B CN202210786214.0A CN202210786214A CN115241820B CN 115241820 B CN115241820 B CN 115241820B CN 202210786214 A CN202210786214 A CN 202210786214A CN 115241820 B CN115241820 B CN 115241820B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- 241000565675 Oncomelania Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
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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
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a support frame for a box in the power cable laying construction process, which belongs to the technical field of power construction auxiliary tools and comprises a support plate, a lower U-shaped frame, an upper U-shaped frame and a connecting structure, wherein each corner part of the lower plate surface of the support plate is provided with a support structure capable of supporting the lower U-shaped frame, and the upper plate surface of the support plate is provided with the lower U-shaped frame which is matched with the lower U-shaped frame and is horizontally arranged. According to the invention, the cable clamping function is realized by the cooperation of the pressing wheel and the corresponding supporting wheel through rotating the adjusting screw, and the cable can be pulled unidirectionally due to the arrangement of the ratchet wheel, the first compression spring, the sliding rod and the clamping teeth, so that the cable is prevented from being pulled back, the cable can be first straightened, clamped and fixed, then the cable joint end is connected with the joint box at the position of the adjusting cable, and the technical problem that the cable is required to be pulled, straightened and clamped and fixed simultaneously in the prior art and at least two persons are required to work cooperatively is solved.
Description
Technical Field
The invention relates to the technical field of power construction auxiliary tools, in particular to a support frame for a junction box in the power cable laying construction process.
Background
With the improvement of the power line from the ground, the manufacturing work of the cable intermediate head is gradually increased, the manufacturing site of the cable intermediate head box is also often carried out on the working site, especially in the cable fault repair work, the working site is often located in a narrow cable pit or a dug earth pit, so that great inconvenience is brought to the manufacturing of the cable intermediate head box, and therefore, the cable is required to be lifted from the ground by adopting a cable support and then the cable head is manufactured, but meanwhile, the problem is that the existing cable support is limited by the limitations of structure and design, is still inconvenient to use, and can not be placed in the cable pit stably and firmly enough, so that the manufacturing and maintenance construction progress of the cable head is greatly influenced, and the maintenance construction quality is reduced.
At present, the prior China patent with the publication number of CN107508199A discloses a support frame for a box connection in the power cable laying construction process, which comprises a tubular inner cylinder, an upper support plate and a lower support plate, wherein a balancing weight is arranged below the tubular inner cylinder, and three fixing plates are arranged at the balancing weight at the bottom end of the tubular inner cylinder; the three fixing plates are symmetrically arranged around the bottom end of the tubular inner cylinder; the fixed plate is connected with the supporting rod through a pin on the fixed plate; the tubular inner cylinder is connected with a telescopic rod in a sliding way; the telescopic rod is characterized in that the tubular inner cylinder is in clearance fit with the telescopic rod, an elastic movable sleeve is arranged between the inner cylinder and the telescopic rod, a fastening screw is arranged on the outer wall of the tubular inner cylinder, and an angle adjusting head is arranged at the top end of the telescopic rod; the angle adjusting head is connected with a supporting column through a locking knob in a threaded manner; a lower supporting plate is fixedly connected above the supporting column; the lower supporting plate is fixedly connected with the upper supporting plate; a cable inlet is arranged between the upper support plate and the lower support plate, and the upper support plate and the lower support plate form a support structure; the cable fixing device is arranged on the supporting structure and can support the cable from the cable trench so that the cable is at a certain height from the ground; but this device also has at least one of the following drawbacks:
1. after the cable is clamped and fixed through the cooperation of the compression head and the arc-shaped groove, the clamped part of the cable cannot move axially, so that the cable needs to be pulled all the time before being clamped, the middle head of the cable is ensured to have a certain length and be connected with the box, the cable needs to be straightened manually, the rotating handle is also required to be rotated manually, the cable clamping and fixing function is realized, the three actions need to be performed simultaneously, at least two persons need to work cooperatively when the device is used, the labor intensity is high, and the cable is required to be pulled all the time, in particular, the cable is required to be pulled all the time in a narrow cable trench or a dug soil pit, so that the operation space is smaller, the construction time is prolonged, and the construction progress is influenced;
2. when the cable is clamped, the rotating handle is rotated to drive the adjusting rod to rotate, so that the adjusting rod descends, the adjusting rod drives the compressing head to descend, and meanwhile, the compressing head also follows the adjusting rod to rotate, so that the direction of the groove at the bottom of the compressing head is continuously changed, the groove at the bottom of the compressing head is easy to be arranged after the cable is clamped, the groove at the bottom of the compressing head is not corresponding to the cable body, the cable is extruded at the end part of the groove notch at the bottom of the compressing head, the contact surface between the compressing head and the cable is small, and the damage to the outer skin of the cable is easy to occur;
3. when the device releases the clamping of the cables, the rotating handle can only be rotated reversely each time, so that the cables corresponding to the rotating handle can be released, and the cables can only be released one by one, so that the device is longer in use;
4. the device supporting part can be highly adjusted, and can only support from the cable pit bottom or the dug pit bottom in the working process, so the device still has higher defect in the height, and the cable pit bottom or the dug pit bottom soil is loose, and the device also has unstable defect in the use.
Disclosure of Invention
The invention aims to solve the problems and provide a support frame for a box in the laying construction process of a power cable.
The invention realizes the above purpose through the following technical scheme:
the supporting frame for the box connection in the power cable laying construction process comprises a supporting plate, and further comprises a lower U-shaped frame, an upper U-shaped frame and a connecting structure, wherein each corner part of the lower plate surface of the supporting plate is provided with a supporting structure capable of supporting the lower U-shaped frame, the upper plate surface of the supporting plate is provided with the lower U-shaped frame which is matched with the lower U-shaped frame and is horizontally arranged, two side edges of the lower U-shaped frame are correspondingly positioned at two end parts of the upper plate surface of the supporting plate, an upper U-shaped frame corresponding to the upper U-shaped frame is arranged above the lower U-shaped frame, and the closed end of the upper U-shaped frame is correspondingly connected with the closed end of the lower U-shaped frame through the connecting structure;
the top surfaces of two side edges of the lower U-shaped frame are uniformly provided with a plurality of U-shaped grooves at intervals along the length direction, the notch of each U-shaped groove is rotationally connected with a supporting wheel, the middle part of the wheel body of the supporting wheel is provided with a V-shaped wire groove, and the two end surfaces of the supporting wheel are coaxially provided with ratchet wheels matched with the supporting wheel; the middle part of the bottom of each U-shaped groove is provided with a vertical mounting groove, the bottom of each mounting groove is provided with a first compression spring in a matching way, the mounting groove is also provided with a sliding rod which is matched with the mounting groove and can vertically move, the upper end of the sliding rod extends out of the mounting groove, and the position of the upper end surface of the sliding rod corresponding to a ratchet wheel is provided with a latch which can be matched with the ratchet wheel, so that the top end of the ratchet wheel body can only rotate towards the inner side direction of the U-shaped frame;
the two sides of the upper U-shaped frame are provided with stepped holes at positions corresponding to the supporting wheels, the large-diameter sections of the stepped holes are positioned below the small-diameter sections of the upper U-shaped frame, the sections of the large-diameter sections of the stepped holes are of polygonal structures, the large-diameter sections of the stepped holes are in sliding fit with hollow prisms matched with the large-diameter sections of the stepped holes along the axial directions of the large-diameter sections of the stepped holes, the diameters of inner cavities of the hollow prisms are smaller than those of the small-diameter sections of the stepped holes, the lower ends of the hollow prisms extend out of the stepped holes, wheel supports are fixedly connected to the ends of the hollow prisms, and the wheel supports are rotatably connected with pinch rollers capable of being matched with the corresponding supporting wheels to clamp cables; the inner cavity of the hollow prism is in threaded fit with an adjusting screw, the upper end of the adjusting screw extends out of the hollow prism and penetrates through the small-diameter section of the stepped hole, the rod body of the adjusting screw is rotationally connected with the small-diameter section of the stepped hole, and a rotating handle is arranged at the end of the adjusting screw.
Preferably, the connecting structure comprises a connecting rod vertically arranged and a guide rod parallel to the connecting rod, wherein a rod body at one end part of the connecting rod is in threaded fit with the lower U-shaped frame or the upper U-shaped frame, and a rod body at the other end part of the connecting rod is in rotary connection with the upper U-shaped frame or the lower U-shaped frame;
one end of the guide rod is correspondingly and fixedly connected with the lower U-shaped frame or the upper U-shaped frame, and the other end of the guide rod penetrates through the upper U-shaped frame or the lower U-shaped frame in a sliding manner.
Preferably, the guide rod is provided with a limiting structure corresponding to one end in sliding fit with the upper U-shaped frame or the lower U-shaped frame, and a second compression spring is matched with the position of the guide rod body between the upper U-shaped frame and the lower U-shaped frame.
Preferably, the V-shaped line groove wall of the supporting wheel is provided with a flexible friction structure.
Preferably, the flexible friction structure is a flexible convex rib uniformly arranged on the groove wall of the V-shaped line groove in a spacing ring manner, a flexible convex point uniformly arranged on the groove wall of the V-shaped line groove, or a flexible friction layer arranged on the groove wall of the V-shaped line groove.
Preferably, the support structure comprises an n-type support and a support rod, the n-type support is correspondingly and fixedly connected to the corner part of the lower plate surface of the support plate, the two side edges of the n-type support are identical to the two side edges of the upper U-shaped frame in azimuth, one end of the support rod is correspondingly and rotatably connected to the inner side of the n-type support, and the other end of the support rod is detachably connected to the lower plate surface of the support plate.
Preferably, the positioning screw threads which can extend to the inner side of the n-type support and are horizontally arranged are in threaded fit with the outer side surface of the n-type support at the position which is positioned below the rotation center of the support rod, and the support rod is provided with positioning insertion holes which can be matched with the positioning screw threads.
Preferably, the support rod is of a telescopic rod structure with adjustable length.
Preferably, the two support structures at the same end of the support plate are correspondingly arranged at intervals along the length direction of the support plate.
Preferably, the sliding rod is of a prismatic structure.
The beneficial effects are that:
1. due to the arrangement of the lower U-shaped frame and the upper U-shaped frame, the function of clamping cables can be realized by the cooperation of the pinch roller and the corresponding supporting wheels by rotating the rotating handles of the adjusting screw rods, and the cables can be pulled unidirectionally by the arrangement of the ratchet wheel, the first compression spring, the sliding rod and the clamping teeth to prevent the cables from being pulled back, so that the cables can be straightened and clamped and fixed firstly, then the cable joint end is connected to the joint box at the position of the adjusting cable, and the technical problem that the pulling, the straightening and the clamping of the cables need to be carried out simultaneously in the prior art and at least two persons need to work cooperatively is solved;
2. due to the adoption of the arrangement of the connecting structure, the lower U-shaped frame can be upwards moved by rotating the connecting rod, so that all the pressing wheels are upwards moved, the fixation of all cables is released once, and the technical problem that the cables can only be released one by one to be clamped and fixed in the prior art and the time is long is solved;
3. due to the adoption of the arrangement of the supporting structure, the supporting rod can rotate 180 degrees by rotating the supporting rod during use, so that the supporting rod is supported on the ground at the upper end part of the cable trench, and the technical problem that the supporting part can only support from the bottom of the cable trench or the bottom of a dug soil pit in the prior art, and the device has unstable defects due to loose soil at the bottom of the cable trench or the bottom of the dug soil pit is solved; due to the adoption of the arrangement of the supporting structure, the supporting rod can be transversely attached to the supporting plate when not in use, so that the supporting frame is low in height, the defect of high in the prior art is overcome, and the carrying and storage are convenient.
Additional features and advantages of the invention will be set forth in the description which follows, or may be learned by practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a B-B cross-sectional view of FIG. 2;
FIG. 5 is a cross-sectional view of C-C of FIG. 4;
FIG. 6 is a schematic view of the structure of the present invention in another state;
fig. 7 is a schematic structural view of the third state of the present invention.
The reference numerals are explained as follows:
1. a support plate; 2. a lower U-shaped frame; 21. a U-shaped groove; 22. a support wheel; 23. a ratchet wheel; 24. a mounting groove; 25. a first compression spring; 26. a slide bar; 27. latch teeth; 3. a U-shaped frame is arranged; 31. a stepped hole; 32. a hollow prism; 33. a wheel support; 34. a pinch roller; 35. adjusting a screw; 4. a connection structure; 41. a connecting rod; 42. a guide rod; 421. a limit structure; 43. a second compression spring; 5. a support structure; 51. an n-type support; 52. a support rod; 53. positioning oncomelania.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
1-7, a support frame for a box receiving in the power cable laying construction process comprises a support plate 1, a lower U-shaped frame 2, an upper U-shaped frame 3 and a connecting structure 4, wherein each corner part of the lower plate surface of the support plate 1 is provided with a support structure 5 capable of supporting the lower U-shaped frame, and thus the support plate 1 is supported by the four support structures 5 arranged at intervals, so that the support plate 1 is more stable; the upper plate surface of the supporting plate 1 is provided with a lower U-shaped frame 2 which is matched with the upper plate surface and is horizontally arranged, two side edges of the lower U-shaped frame 2 are correspondingly positioned at two end parts of the upper plate surface of the supporting plate 1, an upper U-shaped frame 3 which corresponds to the lower U-shaped frame 2 is arranged above the lower U-shaped frame 2, and the closed end of the upper U-shaped frame 3 and the closed end of the lower U-shaped frame 2 are correspondingly connected through a connecting structure 4, that is, the openings of the lower U-shaped frame 2 and the upper U-shaped frame 3 face the same;
the top surfaces of two side edges of the lower U-shaped frame 2 are uniformly provided with a plurality of U-shaped grooves 21 at intervals along the length direction, the notch of each U-shaped groove 21 is rotationally connected with a supporting wheel 22, the middle part of the wheel body of the supporting wheel 22 is provided with a V-shaped wire groove, and the groove wall of the V-shaped wire groove of the supporting wheel 22 is provided with a flexible friction structure according to requirements, so that the friction force on a cable can be increased, and the cable sheath can be prevented from being damaged; preferably, the flexible friction structure is a flexible convex rib uniformly arranged on the groove wall of the V-shaped line groove in a spacing ring manner, a flexible convex point uniformly arranged on the groove wall of the V-shaped line groove, or a flexible friction layer arranged on the groove wall of the V-shaped line groove;
ratchet wheels 23 matched with the supporting wheels are coaxially arranged on the two end faces of the supporting wheels 22, and the diameter of each ratchet wheel 23 is smaller than that of the supporting wheel 22 according to requirements; the ratchet wheel 23 and the supporting wheel 22 are integrally formed according to the requirement, that is, the ratchet teeth are arranged at the two ends of the wheel body of the supporting wheel 22; the middle part of the bottom of each U-shaped groove 21 is provided with a vertical mounting groove 24, the bottoms of the mounting grooves 24 are respectively provided with a first compression spring 25 in a matching way, the mounting grooves 24 are also provided with slide bars 26 which are matched with the mounting grooves and can vertically move, the upper ends of the slide bars 26 extend out of the mounting grooves 24, and the slide bars 26 are of prismatic structures according to requirements, so that the slide bars 26 can be prevented from rotating; the upper end surface of the slide bar 26 is provided with a latch 27 which can be matched with the ratchet wheel 23 and can only rotate towards the inner side of the U-shaped frame 2 at the top end of the ratchet wheel 23 body;
the two sides of the upper U-shaped frame 3 are provided with stepped holes 31 corresponding to the supporting wheels 22, the large-diameter sections of the stepped holes 31 are positioned below the small-diameter sections of the stepped holes 31, the sections of the large-diameter sections of the stepped holes 31 are of polygonal structures, hollow prisms 32 matched with the large-diameter sections of the stepped holes 31 are in sliding fit along the axial directions of the large-diameter sections of the stepped holes 31, the diameters of inner cavities of the hollow prisms 32 are smaller than those of the small-diameter sections of the stepped holes 31, the lower ends of the hollow prisms 32 extend out of the stepped holes 31, the ends of the hollow prisms 32 are fixedly connected with wheel supports 33, and the wheel supports 33 are rotatably connected with pinch rollers 34 which can be matched with the corresponding supporting wheels 22 to clamp cables; an adjusting screw rod 35 is in threaded fit with the inner cavity of the hollow prism 32, the upper end part of the adjusting screw rod 35 extends out of the hollow prism 32 and penetrates through the small-diameter section of the stepped hole 31, the rod body of the adjusting screw rod 35 is in rotary connection with the small-diameter section of the stepped hole 31, and a rotary handle is arranged at the end of the adjusting screw rod 35;
the arrangement of the lower U-shaped frame 2 and the upper U-shaped frame 3 can realize the function of clamping cables by rotating the rotating handles of the adjusting screw rods 35, so that the pressing wheels 34 are matched with the corresponding supporting wheels 22, and the cables can be pulled unidirectionally by the arrangement of the ratchet wheels 23, the first compression springs 25, the sliding rods 26 and the clamping teeth 27 to prevent the cables from being pulled back, so that the cables can be first straightened, clamped and fixed by a worker, then the positions of the cables are adjusted, and finally the cable joint ends are connected with the junction boxes, thereby solving the technical problems that in the prior art, the cable pulling, the straightening and the cable clamping are required to be carried out simultaneously and at least two persons are required to work cooperatively;
according to the requirement, a clamping structure capable of clamping the wire box is arranged at the position, corresponding to the inner side of the lower U-shaped frame 2, of the upper plate surface of the supporting plate 1; the clamping structure can be a screw rod which is in threaded fit with a single side edge of the lower U-shaped frame 2, and a clamping plate is arranged at the inner end of the screw rod;
in the above-mentioned structure, when in use, support the backup pad 1 through bearing structure 5 at first for the cable breaks away from the cable ditch, the joint box is arranged in the inboard position of backup pad 1 upper plate face in lower U type frame 2 afterwards, then place the V nature wire casing of supporting wheel 22 with cable joint end cable body, then rotate the rotation handle of corresponding adjusting screw 35, rotate the handle and drive adjusting screw 35 rotation, because adjusting screw 35 is connected with the rotation of stepped hole 31 minor diameter section pore wall, adjusting screw 35 and hollow prism 32 inner wall screw-thread fit, therefore hollow prism 32 descends, hollow prism 32 drives wheel support 33 and descends, wheel support 33 drives pinch roller 34 and descends, and then extrude the cable, the cable body is held at this moment, then the joint end of cable is pulled as required, because the cable body is held at this moment, supporting wheel 22, ratchet 23 and pinch roller 34 take place to rotate, and then the cable can be pulled, when the cable is located the inboard position length of lower U type frame 2 enough back release the cable, ratchet 23 can not reverse rotation under the effect of latch 27, and then cable can not connect in the cable joint box can not have been pulled in this moment.
In the second embodiment, on the basis of the first embodiment, as shown in fig. 3, the connection structure 4 includes a vertically arranged connection rod 41 and a guide rod 42 parallel to the connection rod 41, one end of the connection rod 41 is in threaded fit with the lower U-shaped frame 2 or the upper U-shaped frame 3, the other end of the connection rod 41 is in rotational connection with the upper U-shaped frame 3 or the lower U-shaped frame 2, and the end of the connection rod 41 penetrates through the upper U-shaped frame 3 or the lower U-shaped frame 2 as required, and is provided with a rotational handle; the method comprises the steps of carrying out a first treatment on the surface of the
One end of the guide rod 42 is correspondingly and fixedly connected with the lower U-shaped frame 2 or the upper U-shaped frame 3, and the other end of the guide rod 42 penetrates through the upper U-shaped frame 3 or the lower U-shaped frame 2 in a sliding manner;
by adopting the arrangement of the connecting structure 4, the lower U-shaped frame 2 can be upwards moved by rotating the connecting rod 41, so that all the pressing wheels 34 are upwards moved, the fixation of all cables is released once, and the technical problem that the cables can only be released one by one to be clamped and fixed in the prior art and the service time is long is solved;
a limiting structure 421 is arranged at one end of the guide rod 42 corresponding to the sliding fit with the upper U-shaped frame 3 or the lower U-shaped frame 2, and a second compression spring 43 is arranged at the position of the rod body of the guide rod 42 between the upper U-shaped frame 3 and the lower U-shaped frame 2 in a matched manner;
due to the arrangement of the limiting structure 421 and the second compression spring 43, when the cable fixing is released, the connecting rod 41 can be separated from the threaded fit with the lower U-shaped frame 2 or the upper U-shaped frame 3 by rotating the connecting rod 41, and at the moment, the upper U-shaped frame 3 is quickly lifted under the action of the second compression spring 43, so that the cable fixing releasing efficiency is further improved;
the end shaft of the connecting rod 41 that mates with the threads of the lower U-shaped frame 2 or the upper U-shaped frame 3 is provided with only a limited number of threads, for example 2-5 turns, as required.
In the third embodiment, as shown in fig. 1 and fig. 3-5, the support structure 5 includes an n-type bracket 51 and a support rod 52, the n-type bracket 51 is correspondingly and fixedly connected to the corner of the lower plate surface of the support plate 1, the two sides of the n-type bracket 51 are in the same orientation as the two sides of the upper U-shaped bracket 3, one end of the support rod 52 is correspondingly and rotatably connected to the inner side of the n-type bracket 51, and the other end of the support rod 52 is detachably connected to the lower plate surface of the support plate 1;
the arrangement of the supporting structure 5 can enable the supporting rod 52 to rotate 180 degrees by rotating the supporting rod 52 when in use, as shown in fig. 7, the supporting rod 52 is limited by the lower edge of the side edge of the corresponding supporting plate 1 and can not rotate continuously, and further the supporting rod 52 is supported on the ground of the upper end part of the cable trench, so that the technical problem that in the prior art, the supporting part can only support from the bottom of the cable trench or the bottom of a dug pit, and the device has unstable defects due to loose soil at the bottom of the cable trench or the bottom of the dug pit is solved;
due to the arrangement of the supporting structure 5, the supporting rod 52 can be transversely attached to the supporting plate 1 when not in use, so that the supporting frame is low in height, the defect of high height in the prior art is overcome, and the functions of convenient carrying and storage are realized;
according to the requirement, the n-type support 51 is correspondingly positioned in the side edge of the lower plate surface of the support plate 1, and a certain gap is reserved between the n-type support and the side edge of the lower plate surface of the support plate 1, so that the support rod 52 can be more stable after rotating 180 degrees.
According to the requirement, the supporting rod 52 is of a telescopic rod structure with adjustable length, and the length of the supporting rod 52 can be increased, so that the supporting frame can be suitable for a wider cable trench.
In the fourth embodiment, as shown in fig. 3-4, a positioning screw 53 which can extend to the inner side of the n-type bracket 51 and is horizontally arranged is in threaded fit with the outer side of the n-type bracket 51 at a position corresponding to the position below the rotation center of the supporting rod 52, and a positioning jack capable of being matched with the positioning screw 53 is arranged on the supporting rod 52;
after the support rod 52 is rotated by a specific angle, the support rod 52 can be locked by the positioning screw 53, for example, the specific angle is 90 degrees or 100 degrees, that is, when the specific angle is 90 degrees, as shown in fig. 6, the support rod 52 can be in a vertical state, and the use of the mode can be referred to the use mode of the comparison file in the technical background;
when the specific angle is 100 degrees, the lower end of the supporting rod 52 deviates outwards, so that the supporting surface is larger, and the supporting frame is more stable;
the n-type brackets 51 may be arranged obliquely as needed, specifically, the open ends of the n-type brackets 51 face downward and outward, specifically, when the support rods 52 are rotated 90 degrees, the support rods 52 at both ends of the support plate 1 are distributed in an eight shape.
The support rod 52 is a telescopic rod structure with adjustable length according to the requirement, so that the support plate 1 can be supported to a proper height according to the requirement;
according to the need, two support structures 5 at the same end of the support plate 1 are correspondingly arranged at intervals along the length direction of the support plate 1, so that the shortest length of the support rods 52 is slightly smaller than the width of the support plate 1, and the support rods 52 do not extend out of the support plate 1 when not in use.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a connect support frame for box in power cable lays work progress, includes backup pad (1), its characterized in that: the novel support plate comprises a support plate (1) and is characterized by further comprising a lower U-shaped frame (2), an upper U-shaped frame (3) and a connecting structure (4), wherein a supporting structure (5) which can support the lower plate is arranged at each corner of the lower plate surface of the support plate (1), the lower U-shaped frame (2) which is matched with the upper plate surface of the support plate (1) is arranged on the upper plate surface of the support plate (1), two side edges of the lower U-shaped frame (2) are correspondingly positioned at two end parts of the upper plate surface of the support plate (1), an upper U-shaped frame (3) corresponding to the lower U-shaped frame is arranged above the lower U-shaped frame (2), and the closed end of the upper U-shaped frame (3) is correspondingly connected with the closed end of the lower U-shaped frame (2) through the connecting structure (4);
the upper surfaces of two side edges of the lower U-shaped frame (2) are uniformly provided with a plurality of U-shaped grooves (21) at intervals along the length direction, the notch of each U-shaped groove (21) is rotationally connected with a supporting wheel (22), the middle part of the wheel body of the supporting wheel (22) is provided with a V-shaped wire slot, and the two end surfaces of the supporting wheel (22) are coaxially provided with ratchet wheels (23) matched with the supporting wheel; a vertical mounting groove (24) is formed in the middle of the groove bottom of each U-shaped groove (21), a first compression spring (25) is arranged at the groove bottom of each mounting groove (24) in a matching way, a sliding rod (26) which is matched with the mounting groove and can vertically move is also arranged at the mounting groove (24), the upper end of the sliding rod (26) extends out of the mounting groove (24), and a latch (27) which can be matched with the ratchet (23) is arranged at the position of the upper end surface of the sliding rod (26) corresponding to the ratchet (23) so that the top end of the ratchet (23) can only rotate towards the inner side direction of the U-shaped frame (2);
the two sides of the upper U-shaped frame (3) are provided with stepped holes (31) corresponding to the supporting wheels (22), the large-diameter sections of the stepped holes (31) are positioned below the small-diameter sections of the stepped holes, the sections of the large-diameter sections of the stepped holes (31) are of polygonal structures, hollow prisms (32) matched with the large-diameter sections of the stepped holes (31) are in sliding fit along the axial directions of the large-diameter sections, the inner cavity diameters of the hollow prisms (32) are smaller than the diameters of the small-diameter sections of the stepped holes (31), the lower ends of the hollow prisms (32) extend out of the stepped holes (31), wheel supports (33) are fixedly connected to the lower ends of the hollow prisms (32) in a rotating mode, and pinch rollers (34) capable of being matched with the corresponding supporting wheels (22) to clamp cables are connected in a rotating mode; the inner cavity of the hollow prism (32) is in threaded fit with an adjusting screw (35), the upper end of the adjusting screw (35) extends out of the hollow prism (32) and penetrates through the small-diameter section of the stepped hole (31), a rod body of the adjusting screw (35) is rotatably connected with the small-diameter section of the stepped hole (31), and a rotating handle is arranged at the end of the adjusting screw (35).
2. The support frame for a junction box in a power cable laying construction process according to claim 1, wherein: the connecting structure (4) comprises a connecting rod (41) which is vertically arranged and a guide rod (42) which is parallel to the connecting rod (41), one end rod body of the connecting rod (41) is in threaded fit with the lower U-shaped frame (2) or the upper U-shaped frame (3), and the other end rod body of the connecting rod (41) is in rotary connection with the upper U-shaped frame (3) or the lower U-shaped frame (2);
one end of the guide rod (42) is correspondingly and fixedly connected with the lower U-shaped frame (2) or the upper U-shaped frame (3), and the other end of the guide rod (42) penetrates through the upper U-shaped frame (3) or the lower U-shaped frame (2) in a sliding manner.
3. The support frame for a junction box in a power cable laying construction process according to claim 2, wherein: one end of the guide rod (42) corresponding to the upper U-shaped frame (3) or the lower U-shaped frame (2) in sliding fit is provided with a limiting structure (421), and a second compression spring (43) is arranged at the position of the guide rod (42) body between the upper U-shaped frame (3) and the lower U-shaped frame (2) in matching mode.
4. The support frame for a junction box in a power cable laying construction process according to claim 1, wherein: the V-shaped line groove wall of the supporting wheel (22) is provided with a flexible friction structure.
5. The support frame for a junction box in a power cable laying construction process according to claim 4, wherein: the flexible friction structure is a flexible convex rib uniformly arranged on the groove wall of the V-shaped line groove in a spacing ring manner, a flexible convex point uniformly arranged on the groove wall of the V-shaped line groove or a flexible friction layer arranged on the groove wall of the V-shaped line groove.
6. The support frame for a junction box in a power cable laying construction process according to claim 1, wherein: the support structure (5) comprises an n-type support (51) and a support rod (52), the n-type support (51) is correspondingly and fixedly connected to the corner of the lower plate surface of the support plate (1), the two side edges of the n-type support (51) are identical to the two side edges of the upper U-shaped frame (3) in azimuth, one end of the support rod (52) is correspondingly and rotatably connected to the inner side of the n-type support (51), and the other end of the support rod (52) is detachably connected to the lower plate surface of the support plate (1).
7. The support frame for a junction box in a power cable laying construction process according to claim 6, wherein: the positioning screw threads (53) which can extend to the inner side of the n-type support (51) and are horizontally arranged are in threaded fit at the position, corresponding to the position below the rotation center of the support rod (52), of the n-type support (51), and the support rod (52) is provided with positioning insertion holes which can be matched with the positioning screw threads (53).
8. The support frame for a junction box in a power cable laying construction process according to claim 6, wherein: the supporting rod (52) is of a telescopic rod structure with adjustable length.
9. The support frame for a junction box in a power cable laying construction process according to claim 6, wherein: two support structures (5) positioned at the same end part of the support plate (1) are correspondingly arranged at intervals along the length direction of the support plate (1).
10. The support frame for a junction box in a power cable laying construction process according to claim 1, wherein: the slide bar (26) is of prismatic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210786214.0A CN115241820B (en) | 2022-07-06 | 2022-07-06 | Support frame for box connection in power cable laying construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210786214.0A CN115241820B (en) | 2022-07-06 | 2022-07-06 | Support frame for box connection in power cable laying construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115241820A CN115241820A (en) | 2022-10-25 |
| CN115241820B true CN115241820B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210786214.0A Active CN115241820B (en) | 2022-07-06 | 2022-07-06 | Support frame for box connection in power cable laying construction process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115241820B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257382B1 (en) * | 1999-08-20 | 2001-07-10 | Sheng-Hsin Liao | Cable winding apparatus |
| KR20140079568A (en) * | 2012-12-17 | 2014-06-27 | 엄봉남 | Traction track tention adjusting device of cable routing caterpillar |
| CN205489285U (en) * | 2016-03-04 | 2016-08-17 | 国网山东省电力公司平原县供电公司 | Cable straining device |
| CN107508199A (en) * | 2017-08-04 | 2017-12-22 | 国网甘肃省电力公司经济技术研究院 | Box support frame is connect during a kind of power cable laying construction |
| CN216215513U (en) * | 2021-11-04 | 2022-04-05 | 国家电网有限公司 | Cable docking mechanism with position calibration function |
-
2022
- 2022-07-06 CN CN202210786214.0A patent/CN115241820B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6257382B1 (en) * | 1999-08-20 | 2001-07-10 | Sheng-Hsin Liao | Cable winding apparatus |
| KR20140079568A (en) * | 2012-12-17 | 2014-06-27 | 엄봉남 | Traction track tention adjusting device of cable routing caterpillar |
| CN205489285U (en) * | 2016-03-04 | 2016-08-17 | 国网山东省电力公司平原县供电公司 | Cable straining device |
| CN107508199A (en) * | 2017-08-04 | 2017-12-22 | 国网甘肃省电力公司经济技术研究院 | Box support frame is connect during a kind of power cable laying construction |
| CN216215513U (en) * | 2021-11-04 | 2022-04-05 | 国家电网有限公司 | Cable docking mechanism with position calibration function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115241820A (en) | 2022-10-25 |
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