CN115075722A - Special cat ladder of no wall of a well cable shaft - Google Patents
Special cat ladder of no wall of a well cable shaft Download PDFInfo
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- CN115075722A CN115075722A CN202210863835.4A CN202210863835A CN115075722A CN 115075722 A CN115075722 A CN 115075722A CN 202210863835 A CN202210863835 A CN 202210863835A CN 115075722 A CN115075722 A CN 115075722A
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- 241000282326 Felis catus Species 0.000 title claims description 5
- 230000009193 crawling Effects 0.000 claims abstract description 16
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 244000309464 bull Species 0.000 claims 1
- 229910000838 Al alloy Inorganic materials 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000013439 planning Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/02—Extending means
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
A special crawling ladder for a cable well without a well wall relates to a crawling ladder, wherein two support rods (3) of a well head support are arranged at intervals, one end of each support rod is provided with an edge rod (11), an end rod (17) is arranged between the front ends of the two edge rods, an extension support rod (16) is arranged on the outer side of the end rod, and two ends of a rotating rod (5) are hinged with the two support rods; the upper ends of two vertical plates (35) of the U-shaped rod (10) are respectively provided with a connecting plate (26) which is fixed at the lower part of the rotating rod close to the two ends, and the upper ends of two vertical plates of the first U-shaped lifting rod (13) are respectively movably connected with long circular grooves (36) of the two vertical plates of the U-shaped rod through shaft nails (14); the second, third, fourth or fifth U-shaped lifting rods are sequentially connected with the first, second, third and fourth U-shaped lifting rods in such a way to form a lifting ladder stand; the lifting ladder stand is connected with the wellhead support through the rotating rod, so that the stability of entering a cable well is facilitated.
Description
Technical Field
The invention relates to a ladder stand, in particular to a special ladder stand for a cable well without a well wall.
Background
As is known, urban construction is a comprehensive project, not only is the cleanness and beauty of an aboveground building considered, but also some public facilities are considered together, and municipal public pipelines such as matched electric power, communication, water supply and the like are constructed in advance in the urban underground to implement unified planning, design, construction and management maintenance so as to reduce the waste caused by repeated excavation and also be beneficial to saving intensive land, and when the laying conditions of cables are allowed, a comprehensive pipe gallery is utilized, most of the cables are independent cable wells, so that the periphery in a wellhead of a plurality of cable wells is not close to a well wall; when the cable in to utility tunnel or cable well cable overhaul the maintenance, meet the operation that does not have the wall of a well in the cable well wellhead, can only use the rope ladder to get into the well, and carry instrument or personnel's business turn over all very difficult in the climbing of rope ladder, and conventional cat ladder slides easily.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention discloses a special crawling ladder for a cable well without a well wall.
The technical scheme for realizing the invention is as follows:
a special crawling ladder for a cable well without a well wall comprises a well head support, a rotating rod, a lifting crawling ladder and a warning board, wherein two support rods of the well head support are arranged at intervals, one end of each support rod is provided with an edge rod, an end rod is arranged between the front ends of the two edge rods, an extending support rod is arranged on the outer side of each end rod, and the two ends of the rotating rod are hinged between the two support rods to form the well head support; the upper ends of the two vertical plates of the first U-shaped lifting rod are respectively movably connected with the long circular grooves of the two vertical plates of the U-shaped rod through shaft nails; the upper ends of the two vertical plates of the second U-shaped lifting rod are respectively movably connected with the long circular grooves of the two vertical plates of the first U-shaped lifting rod through shaft nails; the third, fourth or fifth U-shaped lifting rod is sequentially connected with the second, third and fourth U-shaped lifting rods according to the mode to form the lifting ladder; warning boards are respectively arranged on the two supporting rods and the upper parts of the end rods close to the two ends.
One ends of two support rods of the well head support are respectively and fixedly connected with the inner ends of the two connecting rods, the outer ends of the two connecting rods are respectively and fixedly connected with one end of a side part rod, the inner sides of the other ends of the two side part rods are respectively connected with the outer ends of the inclined rods, and the end part rod is arranged between the inner ends of the two inclined rods; through holes for inserting the warning board supporting rods are respectively formed in the end part rods close to the two ends; the outer ends of the two support rods are respectively provided with a hole for inserting the support rod of the warning board.
The inner side surface of the warning board A is provided with support rods A at intervals, and the lower ends of the two support rods A are inserted into holes at the outer ends of the two support rods respectively; the inner side surface of the warning board B is provided with support rods B at intervals, the lower parts of the two support rods B are inserted into the through holes of the end part rods respectively, and the lower ends of the two support rods B are exposed out of the lower surface of the end part rods.
The special crawling ladder for the cable well without the well wall is characterized in that warning pictures and texts are arranged on the outer side surfaces of the warning board A and the warning board B.
The special crawling ladder for the cable well without the well wall is characterized in that one side of the lower parts of the two supporting rods B is provided with a protruding block respectively.
The special crawling ladder for the cable well without the well wall is characterized in that the extension supporting rod arranged on the outer side of the end rod is of a U-shaped structure, and two end parts of the extension supporting rod of the U-shaped structure are fixedly connected to the outer side of the end rod.
The special crawling ladder for the cable well without the well wall is characterized in that block bodies are arranged on the upper surfaces of the two support rods respectively, and two insertion holes which are distributed up and down are formed in one end, facing the support rods, of the two block bodies respectively.
The two sides of the two support rods close to one end are respectively provided with a through hole; fixing holes A are respectively formed in the upper part and the lower part of the rotating rod, which are close to the two ends of the rotating rod, two inserting blocks are respectively penetrated in rod holes on the end faces of the two ends of the rotating rod, the two ends of the shaft rod are connected with the penetrating holes of the two supporting rods, and the middle part of the shaft rod is penetrated in a block hole formed in the middle part of the two inserting blocks; the connecting plates at the upper ends of the two vertical plates of the U-shaped rod are attached to the lower surfaces of the rotating rod close to the two ends, and four penetrating pins penetrate through the fixing holes B of the connecting plates, the pin holes of the inserting blocks and the fixing holes A of the rotating rod; two long circular grooves which are arranged at intervals are respectively arranged on two vertical plates of the U-shaped rod, and long circular groove flaring openings are arranged on the inner sides of the four long circular grooves; two shaft nail holes are respectively formed in the upper ends of the two vertical plates of the first U-shaped lifting rod, flaring holes are formed in the outer sides of the shaft nail holes, the flaring rings at the inner ends of the four shaft nails are located at the flaring holes of the long circular grooves of the U-shaped lifting rod, and the outer ends of the four shaft nails are fixed in the flaring holes of the shaft nail holes; the two vertical plates of the second U-shaped lifting rod are respectively positioned at the outer sides of the two vertical plates of the first U-shaped lifting rod, the diameter expanding rings at the inner ends of the four shaft nails are positioned at the flaring openings of the long circular grooves of the first U-shaped lifting rod, and the outer ends of the four shaft nails are fixed in the flaring openings of the shaft nail holes of the second U-shaped lifting rod; the connection of the third U-shaped lifting rod and the second U-shaped lifting rod is the same as that of the second U-shaped lifting rod and the first U-shaped lifting rod, and the connection of the fourth U-shaped lifting rod and the fifth U-shaped lifting rod is the same as that of the first U-shaped lifting rod.
The special crawling ladder for the cable well without the well wall is characterized in that the upper surfaces of a U-shaped rod bottom plate and a U-shaped lifting rod bottom plate are respectively provided with a protruding strip; the lower surfaces of the U-shaped rod and the U-shaped lifting rod are respectively provided with a groove which runs through the two ends.
The outer edges of the outer ends of the two insertion blocks are respectively provided with a convex edge, and the periphery of an end face block hole of the outer ends of the two insertion blocks is provided with a convex ring.
Through the above disclosure, the beneficial effects of the invention are:
according to the special crawling ladder for the cable well without the well wall, the upper end of the lifting crawling ladder and the two supporting rods B are used for clamping a well mouth, so that the problem of sliding cannot occur in use; the lifting ladder stand is formed by mutually connecting a plurality of U-shaped lifting rods through two-shaft nails, so that the lifting ladder stand cannot swing in use, and long circular grooves formed in the plurality of U-shaped lifting rods of the lifting ladder stand are convenient to carry after being folded; the ladder stand is suitable for round wellheads and square wellheads, is convenient to carry, is stable when used, and effectively avoids the problems of sliding and swinging of the ladder stand.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic illustration of a wellhead support structure of the present invention;
figure 3 is a schematic view of the elevating ladder of the present invention;
FIG. 4 is a perspective view of the swivel lever of the present invention;
FIG. 5 is a schematic perspective view of a U-shaped bar of the present invention;
FIG. 6 is a schematic view of a U-shaped bar configuration of the present invention;
FIG. 7 is a schematic perspective view of the U-shaped lifter of the present invention;
FIG. 8 is a schematic perspective view of a warning board B of the present invention;
FIG. 9 is a schematic view of the pintle construction of the present invention;
in the figure: 1. a warning board A; 2. a support rod A; 3. a strut; 4. a raised edge; 5. a rotating rod; 6. pin penetration; 7. a block body; 8. a jack; 9. a shaft lever; 10. a U-shaped rod; 11. an edge bar; 12. a raised block; 13. a U-shaped lifting rod; 14. a shaft nail; 15. a lower end of the rod; 16. an extension strut; 17. an end rod; 18. a support bar B; 19. a warning board B; 20. warning pictures and texts; 21. an aperture; 22. perforating; 23. a connecting rod; 24. a through hole; 25. a diagonal bar; 26. a connecting plate; 27. a raised strip; 28. a fixing hole A; 29. a rod hole; 30. a pin hole; 31. inserting a block; 32. a raised ring; 33. a block hole; 34. a fixing hole B; 35. a vertical plate; 36. a long circular groove; 37. flaring the long circular groove; 38. a base plate; 39. a groove; 40. flaring; 41. and (4) a shaft nail hole.
Detailed Description
The present invention will be further illustrated with reference to the following examples; the following examples are not intended to limit the present invention, and are only used as a support for the implementation of the present invention, and any equivalent structure replacement within the technical framework of the present invention is included in the protection scope of the present invention;
the crawling ladder special for the cable well without the well wall as shown in the attached drawings 1-9 comprises a well head support, a rotating rod 5, a lifting crawling ladder and a warning board, wherein two rods 3 of the well head support are arranged at intervals, block bodies 7 are respectively arranged on the upper surfaces of the two rods 3, two jacks 8 which are distributed up and down are respectively arranged at one end, facing the rods 3, of the two block bodies 7, edge rods 11 are respectively arranged at one end of each of the two rods 3, an end rod 17 is arranged between the front ends of the two edge rods 11, an extending rod 16 is arranged on the outer side of the end rod 17, the extending rod 16 arranged on the outer side of the end rod 17 is of a U-shaped structure, two end parts of the extending rod 16 of the U-shaped structure are fixedly connected to the outer side of the end rod 17, and two ends of the rotating rod 5 are hinged to the two rods 3 to form the well head support; the connecting plates 26 respectively arranged at the upper ends of the two vertical plates 35 of the U-shaped rod 10 are fixed at the lower parts of the rotating rod 5 close to the two ends, and the upper ends of the two vertical plates 35 of the first U-shaped lifting rod 13 are respectively movably connected with the long circular grooves 36 of the two vertical plates 35 of the U-shaped rod 10 through the shaft nails 14; the upper ends of two vertical plates 35 of the second U-shaped lifting rod 13 are respectively movably connected with long circular grooves 36 of the two vertical plates 35 of the first U-shaped lifting rod 13 through shaft nails 14; the third, fourth or fifth U-shaped lifting rod 13 is connected with the second, third and fourth U-shaped lifting rods 13 in sequence to form a lifting ladder stand; warning signs are respectively arranged on the upper parts of the two support rods 3 and the upper parts of the end part rods 17 close to the two ends, and warning pictures and texts 20 are arranged on the outer side surfaces of the warning signs A1 and the warning signs B19.
With reference to fig. 1, 2 and 8, one end of each of two support rods 3 of the wellhead support is fixedly connected with the inner ends of two connecting rods 23, the outer ends of the two connecting rods 23 are fixedly connected with one end of a side rod 11, the inner sides of the other ends of the two side rods 11 are connected with the outer ends of two inclined rods 25, and an end rod 17 is arranged between the inner ends of the two inclined rods 25; through holes 24 for inserting warning board supporting rods are respectively arranged at the two ends of the end rod 17; the outer ends of the two support rods 3 are respectively provided with a hole 21 for inserting a warning board support rod; the inner side surface of the warning board A1 is provided with support rods A2 at intervals, and the lower ends of the two support rods A2 are respectively inserted into the holes 21 at the outer ends of the two support rods 3; the inner side surface of the warning board B19 is provided with support bars B18 at intervals, the lower parts of the two support bars B18 are respectively inserted into the through holes 24 of the end part bar 17, one side of the lower parts of the two support bars B18 is respectively provided with a convex block 12, and the lower ends 15 of the two support bars B18 are exposed out of the lower surface of the end part bar 17.
With reference to fig. 1, 2, 3, 4, 5, 6 or 7, two sides of one end of each of the two support bars 3 are respectively provided with a through hole 22; fixing holes A28 are respectively arranged at the upper and lower parts of the rotating rod 5 close to the two ends, two inserting blocks 31 are respectively penetrated in rod holes 29 of the end surfaces of the two ends of the rotating rod 5, the two ends of the shaft lever 9 are connected with the through holes 22 of the two supporting rods 3, the middle part of the shaft lever 9 is penetrated in a block hole 33 arranged at the middle part of the two inserting blocks 31, the outer edges of the outer ends of the two inserting blocks 31 are respectively provided with a convex edge 4, and the periphery of the block hole 33 of the end surface of the outer end of the two inserting blocks 31 is provided with a convex ring 32; the connecting plates 26 at the upper ends of two vertical plates 35 of the U-shaped rod 10 are attached to the lower surfaces of the rotating rod 5 close to the two ends, and four through pins 6 are connected with a fixing hole B34 of the connecting plate 26, a pin hole 30 of the inserting block 31 and a fixing hole A28 of the rotating rod 5 in a penetrating way; two long circular grooves 36 which are arranged at intervals are respectively arranged on two vertical plates 35 of the U-shaped rod 10, and the inner sides of the four long circular grooves 36 are provided with long circular groove flaring openings 37; two shaft nail holes 41 are respectively arranged at the upper ends of the two vertical plates 35 of the first U-shaped lifting rod 13, flaring holes 40 are arranged at the outer sides of the shaft nail holes 41, expanding rings at the inner ends of the four shaft nails 14 are positioned at the flaring holes 37 of the long circular grooves 36 of the U-shaped rod 10, and the outer ends of the four shaft nails 14 are fixed in the flaring holes 40 of the shaft nail holes 41; the two vertical plates 35 of the second U-shaped lifting rod 13 are respectively positioned at the outer sides of the two vertical plates 35 of the first U-shaped lifting rod 13, the diameter expanding rings at the inner ends of the four shaft nails 14 are positioned at the long circular groove expanding holes 37 of the long circular groove 36 of the first U-shaped lifting rod 13, and the outer ends of the four shaft nails 14 are fixed in the expanding holes 40 of the shaft nail holes 41 of the second U-shaped lifting rod 13; the connection between the third U-shaped lifting rod 13 and the second U-shaped lifting rod 13 is the same as that between the second U-shaped lifting rod 13 and the first U-shaped lifting rod 13, and the connection between the fourth U-shaped lifting rod 13 and the fifth U-shaped lifting rod 13 is the same as that before; the upper surfaces of the bottom plate 38 of the U-shaped rod 10 and the bottom plate 38 of the U-shaped lifting rod 13 are respectively provided with a raised strip 27 for increasing the strength; the lower surfaces of the U-shaped rod 10 and the U-shaped lifting rod 13 are respectively provided with a groove 39 penetrating through the two ends.
The climbing ladder special for the cable well without the well wall is implemented by combining the attached drawings 1 to 9, wherein a square aluminum alloy pipe is used for cutting a V-shaped notch with a designed angle at the joint of the supporting rod 3, the connecting rod 23, the edge rod 11, the inclined rod 25 and the end rod 17, then the shape shown in the attached drawing 2 is formed by manual TIG welding, then two aluminum alloy square pipes with the same size are welded and connected with a slightly thin aluminum alloy square pipe at the end to form an extension supporting rod 16, two ends of the extension supporting rod 16 are connected with the end rod 17 by manual TIG welding, two aluminum alloy square pipes are welded in parallel to form a block 7', the outer end of an insertion hole 8 of the block 7 can be sealed, the two blocks 7 are welded and connected on the supporting rod 3, and finally a through hole 22, a hole 21 and a through hole 24 are punched by a numerical control machine tool; the rotating rod 5 is an aluminum alloy square tube, and a fixing hole A28 on the rotating rod 5 has the same processing mode as the processing mode; the two insertion blocks 31 are made of plastic materials; the U-shaped rods 10 and the U-shaped lifting rods 13 are made of aluminum alloy materials, after the height of the vertical plates 35 of the U-shaped rods 10 and the length of the bottom plate 38 are determined, the height of the vertical plates 35 of the U-shaped lifting rods 13 is the same as that of the U-shaped rods 10, the length of the bottom plate 38 of the first U-shaped lifting rod 13 is the length of the bottom plate 38 of the U-shaped rod 10 after the vertical plates 35 are contained, namely the length of the bottom plate 38 of the first U-shaped lifting rod 13 is slightly larger than that of the bottom plate 38 of the U-shaped rod 10, in other words, the U-shaped rod 10 contains two vertical plates 35, and a gap is reserved between the two vertical plates 35 of the first U-shaped lifting rod 13; the second U-shaped lifting rod 13, the third U-shaped lifting rod 13, the fourth U-shaped lifting rod 13 and the fifth U-shaped lifting rod 13 sequentially lengthen the length of the bottom plate 38 according to the U-shaped rod 10 and the first U-shaped lifting rod 13, as shown in figure 1 or 3, the shaft nail 14 can be made of aluminum alloy materials, and the shaft nail 10 and the plurality of U-shaped lifting rods 13 are welded and fixed at the flaring 40 of the shaft nail hole 41 after being turned over by hammering after the U-shaped rods 10 and the plurality of U-shaped lifting rods 13 are installed; the warning board A1 and the supporting rod A2 can be made of aluminum alloy plates and aluminum alloy rods, and advertisement stickers printed with warning pictures and texts 20 are pasted on the warning board A1.
The lifting ladder stand can be retracted at ordinary times, the two supporting rods A2 of the warning board A1 are inserted into the insertion holes 8 at the lower parts of the two block bodies 7, and the two supporting rods B18 of the warning board B19 are inserted into the insertion holes 8 at the upper parts of the two block bodies 7 and are carried along with the maintenance emergency car; when the warning board is used, the warning board A1 and the warning board B19 are taken down, the lifting ladder stand is placed at the wellhead of the cable well after going down, the upper part of the lifting ladder stand is attached to one side of the wellhead of the cable well, then the two supporting rods A2 of the warning board A1 are respectively inserted into the two through holes 24 of the end part rod 17, the two supporting rods B18 of the warning board B19 are respectively inserted into the holes 21 of the two supporting rods 3, at the moment, the lower ends 15 of the two supporting rods A2 of the warning board A1 are positioned at the other side of the wellhead of the cable well, and personnel entering the well can conveniently enter the cable well by means of the widening parts of the two side parts 11.
The present invention is not described in detail in the prior art.
Claims (10)
1. The utility model provides a special cat ladder of no wall of a well cable shaft, includes well head support, bull stick (5), lift cat ladder and warning sign, characterized by: two supporting rods (3) of the wellhead support are arranged at intervals, one end of each of the two supporting rods (3) is provided with an edge rod (11), an end rod (17) is arranged between the front ends of the two edge rods (11), an extending supporting rod (16) is arranged on the outer side of the end rod (17), and two ends of a rotating rod (5) are hinged between the two supporting rods (3) to form the wellhead support; connecting plates (26) respectively arranged at the upper ends of two vertical plates (35) of the U-shaped rod (10) are fixed at the lower parts of the rotating rod (5) close to the two ends, and the upper ends of the two vertical plates (35) of the first U-shaped lifting rod (13) are respectively movably connected with long circular grooves (36) of the two vertical plates (35) of the U-shaped rod (10) through shaft nails (14); the upper ends of two vertical plates (35) of the second U-shaped lifting rod (13) are respectively movably connected with long circular grooves (36) of the two vertical plates (35) of the first U-shaped lifting rod (13) through shaft nails (14); the third, fourth or fifth U-shaped lifting rod (13) is sequentially connected with the second, third and fourth U-shaped lifting rods (13) to form a lifting ladder stand; warning signs are respectively arranged on the two supporting rods (3) and the upper parts of the end part rods (17) close to the two ends.
2. The special crawling ladder for the cable well without the borehole wall as claimed in claim 1, wherein: one ends of two support rods (3) of the wellhead support are respectively fixedly connected with the inner ends of two connecting rods (23), the outer ends of the two connecting rods (23) are respectively fixedly connected with one ends of side rods (11), the inner sides of the other ends of the two side rods (11) are respectively connected with the outer ends of inclined rods (25), and end rods (17) are arranged between the inner ends of the two inclined rods (25); through holes (24) for inserting warning board supporting rods are respectively arranged at the two ends of the end rod (17); the outer ends of the two supporting rods (3) are respectively provided with a hole (21) for inserting the supporting rod of the warning board.
3. The ladder stand special for the cable well without the borehole wall as claimed in claim 2, is characterized in that: the inner side surface of the warning board A (1) is provided with support rods A (2) at intervals, and the lower ends of the two support rods A (2) are respectively inserted into holes (21) at the outer ends of the two support rods (3); the inner side surface of the warning board B (19) is provided with support rods B (18) at intervals, the lower parts of the two support rods B (18) are respectively inserted into the through holes (24) of the end part rods (17), and the lower ends (15) of the two support rods B (18) are exposed out of the lower surface of the end part rods (17).
4. The ladder stand special for the cable well without the borehole wall as claimed in claim 3, is characterized in that: and warning pictures and texts (20) are arranged on the outer side surfaces of the warning board A (1) and the warning board B (19).
5. The special crawling ladder for the cable well without the borehole wall as claimed in claim 3, wherein: one side of the lower parts of the two supporting rods B (18) is respectively provided with a convex block (12).
6. The special ladder stand for the cable well without the borehole wall as claimed in claim 1 or 2, which is characterized in that: the extension supporting rod (16) arranged on the outer side of the end rod (17) is of a U-shaped structure, and two ends of the extension supporting rod (16) of the U-shaped structure are fixedly connected to the outer side of the end rod (17).
7. The special ladder stand for the cable well without the borehole wall as claimed in claim 1 or 2, which is characterized in that: the upper surfaces of the two supporting rods (3) are respectively provided with a block body (7), and one ends of the two block bodies (7) facing the supporting rods (3) are respectively provided with two insertion holes (8) which are distributed up and down.
8. The ladder stand special for the cable well without the borehole wall as claimed in claim 1, is characterized in that: two sides of one end of each of the two support rods (3) close to the corresponding end are respectively provided with a through hole (22); fixing holes A (28) are respectively formed in the upper portion and the lower portion of the rotating rod (5) close to the two ends, two inserting blocks (31) are respectively penetrated in rod holes (29) in the end faces of the two ends of the rotating rod (5), the two ends of the shaft lever (9) are connected with through holes (22) of the two support rods (3), and the middle portion of the shaft lever (9) is penetrated in a block hole (33) formed in the middle of the two inserting blocks (31); connecting plates (26) at the upper ends of two vertical plates (35) of the U-shaped rod (10) are attached to the lower surfaces of the rotating rod (5) close to the two ends, and four through pins (6) are connected with a fixing hole B (34) of the connecting plate (26), a pin hole (30) of an inserting block (31) and a fixing hole A (28) of the rotating rod (5) in a penetrating manner; two long circular grooves (36) which are arranged at intervals are respectively arranged on two vertical plates (35) of the U-shaped rod (10), and long circular groove flaring openings (37) are arranged on the inner sides of the four long circular grooves (36); two shaft nail holes (41) are respectively formed in the upper ends of two vertical plates (35) of a first U-shaped lifting rod (13), flaring openings (40) are formed in the outer sides of the shaft nail holes (41), expanding rings at the inner ends of four shaft nails (14) are located at the flaring openings (37) of the long circular grooves (36) of the U-shaped rod (10), and the outer ends of the four shaft nails (14) are fixed in the flaring openings (40) of the shaft nail holes (41); two vertical plates (35) of the second U-shaped lifting rod (13) are respectively positioned at the outer sides of the two vertical plates (35) of the first U-shaped lifting rod (13), expanding rings at the inner ends of four shaft nails (14) are positioned at the long circular groove expanding opening (37) of the long circular groove (36) of the first U-shaped lifting rod (13), and the outer ends of the four shaft nails (14) are fixed in the expanding opening (40) of a shaft nail hole (41) of the second U-shaped lifting rod (13); the connection between the third U-shaped lifting rod (13) and the second U-shaped lifting rod (13) is the same as that between the second U-shaped lifting rod (13) and the first U-shaped lifting rod (13), and the connection between the fourth U-shaped lifting rod (13) and the fifth U-shaped lifting rod (13) is the same as that before.
9. The special ladder stand for the cable well without the borehole wall as claimed in claim 1 or 8, which is characterized in that: the upper surfaces of the bottom plate (38) of the U-shaped rod (10) and the bottom plate (38) of the U-shaped lifting rod (13) are respectively provided with a convex strip (27); the lower surfaces of the U-shaped rod (10) and the U-shaped lifting rod (13) are respectively provided with a groove (39) which runs through the two ends.
10. The ladder stand special for the cable well without the borehole wall as claimed in claim 8, is characterized in that: the outer edges of the outer ends of the two insertion blocks (31) are respectively provided with a convex edge (4), and the periphery of an end face block hole (33) of the outer ends of the two insertion blocks (31) is provided with a convex ring (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210863835.4A CN115075722A (en) | 2022-07-22 | 2022-07-22 | Special cat ladder of no wall of a well cable shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3069398U (en) * | 1999-12-03 | 2000-06-16 | 宏和商事株式会社 | Ladder for manhole |
| CN203835250U (en) * | 2014-04-30 | 2014-09-17 | 国家电网公司 | Safety support for well mouth |
| CN210289598U (en) * | 2019-06-25 | 2020-04-10 | 福建卓畅建设有限公司 | Inspection shaft ladder for municipal works construction |
| CN211201730U (en) * | 2019-09-26 | 2020-08-07 | 北京虹林泰电气工程有限公司 | Novel cable shaft well head cat ladder |
| CN211737013U (en) * | 2020-02-26 | 2020-10-23 | 青岛柏高市政园林建设集团有限公司 | Municipal works construction is with inspection shaft device down |
| CN112196457A (en) * | 2020-10-15 | 2021-01-08 | 蒋海燕 | Application of inspection well operation telescopic ladder stand |
| CN212742262U (en) * | 2020-05-29 | 2021-03-19 | 天津晖茂路桥工程有限公司 | Railway engineering line warning sign device |
| CN214330503U (en) * | 2020-12-08 | 2021-10-01 | 北京博大恒生送变电工程有限公司 | Cable shaft well head cat ladder |
-
2022
- 2022-07-22 CN CN202210863835.4A patent/CN115075722A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3069398U (en) * | 1999-12-03 | 2000-06-16 | 宏和商事株式会社 | Ladder for manhole |
| CN203835250U (en) * | 2014-04-30 | 2014-09-17 | 国家电网公司 | Safety support for well mouth |
| CN210289598U (en) * | 2019-06-25 | 2020-04-10 | 福建卓畅建设有限公司 | Inspection shaft ladder for municipal works construction |
| CN211201730U (en) * | 2019-09-26 | 2020-08-07 | 北京虹林泰电气工程有限公司 | Novel cable shaft well head cat ladder |
| CN211737013U (en) * | 2020-02-26 | 2020-10-23 | 青岛柏高市政园林建设集团有限公司 | Municipal works construction is with inspection shaft device down |
| CN212742262U (en) * | 2020-05-29 | 2021-03-19 | 天津晖茂路桥工程有限公司 | Railway engineering line warning sign device |
| CN112196457A (en) * | 2020-10-15 | 2021-01-08 | 蒋海燕 | Application of inspection well operation telescopic ladder stand |
| CN214330503U (en) * | 2020-12-08 | 2021-10-01 | 北京博大恒生送变电工程有限公司 | Cable shaft well head cat ladder |
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Application publication date: 20220920 |