CN220267579U - High-voltage wire road maintenance ladder - Google Patents
High-voltage wire road maintenance ladder Download PDFInfo
- Publication number
- CN220267579U CN220267579U CN202222568421.7U CN202222568421U CN220267579U CN 220267579 U CN220267579 U CN 220267579U CN 202222568421 U CN202222568421 U CN 202222568421U CN 220267579 U CN220267579 U CN 220267579U
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- ladder
- movable trolley
- voltage line
- groove
- fixedly connected
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- 238000012423 maintenance Methods 0.000 title claims abstract description 27
- 230000009193 crawling Effects 0.000 claims abstract description 4
- 241000282326 Felis catus Species 0.000 claims description 25
- 230000002265 prevention Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Ladders (AREA)
Abstract
The utility model discloses a high-voltage line maintenance ladder, which relates to the technical field of maintenance ladders and comprises a movable trolley, wherein four rollers are arranged at the bottom of the movable trolley, a pushing handle is fixedly connected to one side of the movable trolley, a groove a is formed in the movable trolley, a folding crawling ladder is connected to the inner side wall of one side, far away from the pushing handle, of the groove a through a rotating shaft a, an inclination preventing device is arranged at one end, far away from the pushing handle, of the movable trolley, and rollover preventing devices are arranged at two sides of the movable trolley. According to the utility model, the movable trolley can be supported from the two sides of the movable trolley by arranging the rotatable rotating plates, the screw rods b, the handles b and the supporting blocks b on the two sides of the movable trolley, so that the occupied area of the movable trolley is enlarged, the stability of the movable trolley is improved, and side turning of a worker during maintenance of a high-voltage line by using the high-voltage line maintenance ladder can be avoided.
Description
Technical Field
The utility model relates to maintenance the technical field of ladders, in particular to a ladder, in particular to a high-voltage line overhaul ladder.
Background
High voltage lines are generally referred to as transmission lines that carry voltages above 10 kV. According to GB/T2900.50-2008, definition 2.1 specifies that high pressures are generally free of 1000V. The voltage class of the high-voltage transmission line in China is generally divided into: 35kV, 110kV, 220kV, 330kV, 500kV, 750kV and the like.
The maintenance process of high-voltage transmission line needs the staff to climb to go on, and traditional cat ladder structure height is limited can not carry out extra-high voltage line and use, and the transportation in the use carries that just cat ladder structure volume is great unfavorable for. Therefore, chinese patent application number 2021212497330 discloses a novel cat ladder of extra-high voltage line maintenance, including the removal shallow, accomodate the groove, folding cat ladder subassembly, inclination draws adjusting part, handle, wheel and pushing away the handle to one side outer wall of top of removal shallow has seted up accomodates the groove, is provided with folding cat ladder subassembly in accomodating the inside of groove, is provided with inclination and draws adjusting part on the outer wall of removal shallow in accomodating groove one side; a first ladder stand is arranged in one end of the storage groove, and mounting shafts are rotatably connected to the outer walls of the two sides of the bottom end of the first ladder stand; the folding storage of the ladder stand structure is convenient to transfer and move in the storage groove of the movable trolley, the folding storage of a plurality of groups of ladder stands can be realized through the arrangement of the folding ladder stand component, the vertical erection can be carried out according to the height in the process, the inclined angle inclined-pull adjusting component is arranged, the traction stress of the ladder stand is carried out through inclined-pull steel wire ropes on two sides, and the inclination of the ladder stand can be adjusted through adjusting the length of the inclined-pull steel wire ropes. But the support device is not installed on both sides of the movable trolley of the novel cat ladder for the extra-high voltage line maintenance and one side far away from the pushing handle, and the condition that an maintainer stands at the top of the folding cat ladder assembly and turns on one's side or inclines occurs, so that the novel cat ladder has certain potential safety hazard.
For this reason, a high-voltage line maintenance ladder is proposed.
Disclosure of Invention
The utility model aims to solve the problem that the existing novel crawling ladder for repairing the ultra-high voltage line has potential safety hazards of rollover or tilting in the prior art, and provides the high-voltage line repairing ladder.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the high-voltage line overhaul ladder comprises a movable trolley, wherein four rollers are arranged at the bottom of the movable trolley, a pushing handle is fixedly connected to one side of the movable trolley, a groove a is formed in the movable trolley, a folding cat ladder is connected to the inner side wall of one side, far away from the pushing handle, of the groove a through a rotating shaft a, an inclination preventing device is arranged at one end, far away from the pushing handle, of the movable trolley, and rollover preventing devices are arranged at two sides of the movable trolley;
the rollover prevention device comprises fixed blocks fixedly connected to side walls on two sides of the movable trolley, the tops of the fixed blocks are connected with rotating plates through rotating shafts b, one ends of the rotating plates, far away from the rotating shafts b, are connected with screw rods b in a threaded mode, the bottoms of the screw rods b penetrate through the rotating plates and are fixedly connected with supporting blocks b, and handles b are fixedly connected to the tops of the screw rods b.
Preferably, the two fixing blocks are symmetrically arranged with the center line of the movable trolley as a center.
Preferably, the rotating shaft b is rotatably connected to the top of the fixed block, and the rotating plate is rotatably sleeved on the outer side wall of the rotating shaft b.
Preferably, the folding cat ladder comprises a first section of cat ladder and two sections of extension cat ladders, and two ends of the extension cat ladder positioned in the middle are respectively connected with the first cat ladder and the other section of extension cat ladder through hinges and fixing devices;
the fixing device comprises a block fixing plate, the fixed plate is respectively connected with the first ladder stand and the two sections of extension ladder stands through fixed bolts;
the first cat ladder rotates and is sleeved on the outer side wall of the rotating shaft a, and the first cat ladder is connected with the inner side wall of the groove a through the traction device.
Preferably, the traction device comprises two hydraulic rods, and two ends of each hydraulic rod are connected with the side wall of the first ladder and the inner side wall of the groove a respectively through rotating connecting pieces.
Preferably, a holding groove for holding tools, fixing plates and fixing bolts is formed in the top of the movable trolley.
Preferably, the anti-tilting device comprises a moving block, a groove b is formed in one end, far away from the pushing handle, of the moving trolley, the moving block is connected with the inner side wall of the groove b through two multi-section telescopic rods, two screw rods a are connected to the moving block in a threaded mode, the bottom of each screw rod a penetrates through the moving block and is fixedly connected with a supporting block a, and a handle a is fixedly connected to the top of each screw rod a.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the movable trolley can be supported from two sides of the movable trolley by arranging the rotatable rotating plates, the screw rods b, the handles b and the supporting blocks b on two sides of the movable trolley, so that the occupied area of the movable trolley is enlarged, the stability of the movable trolley is improved, rollover of a worker during maintenance of a high-voltage line by using the high-voltage line maintenance ladder can be avoided, in addition, the position of the supporting blocks b can be raised, the rotating plates are rotatably arranged on the fixed blocks, and when the movable trolley is not required to be used, the rotating plates can be rotated to be contacted with the side walls of the movable trolley, so that the occupied area of the high-voltage line maintenance ladder is reduced, and the movable trolley is convenient to transport and carry.
2. According to the utility model, the movable trolley can be supported from the side of the movable trolley away from the push handle by installing the multi-section telescopic rod, the movable block, the screw rod a, the handle a and the supporting block a on the side of the movable trolley away from the push handle, so that the occupied area of the movable trolley is enlarged, the stability of the movable trolley is improved, the inclination of a worker during the maintenance of a high-voltage line by using the high-voltage line maintenance ladder can be avoided, in addition, the distance between the movable block and the movable trolley can be adjusted, the occupied area of the movable block is reduced during the transportation and the carrying, and the transportation and the carrying are facilitated.
Drawings
Fig. 1 is a schematic structural view of a high-voltage line maintenance ladder according to the present utility model;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1;
fig. 3 is a schematic left-view structural diagram of a high-voltage line overhaul ladder provided by the utility model.
In the figure: 1. moving the cart; 2. a pushing handle; 3. a roller; 4. a holding groove; 5. a groove a; 6. a rotating shaft a; 7. a hydraulic rod; 8. rotating the connecting piece; 9. folding cat ladder; 901. a first ladder; 902. extending the ladder stand; 903. a fixing plate; 904. a fixing bolt; 905. a hinge; 10. a multi-section telescopic rod; 11. a moving block; 12. a screw rod a; 13. a handle a; 14. a supporting block a; 15. a groove b; 16. a fixed block; 17. a rotating shaft b; 18. a rotating plate; 19. a screw rod b; 20. a handle b; 21. and a supporting block b.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments.
Referring to fig. 1-3, a high-voltage line maintenance ladder comprises a movable trolley 1, wherein four rollers 3 are installed at the bottom of the movable trolley 1, a pushing handle 2 is fixedly connected to one side of the movable trolley 1, a groove a5 is formed in the movable trolley 1, the groove a5 is used for accommodating a folding cat ladder 9, and the folding cat ladder 9 can be directly placed in the groove a5 after being folded.
In the present utility model, more specifically, the folding ladder 9 includes a first ladder 901 and two extension ladders 902, two ends of the extension ladder 902 located in the middle are respectively connected with the first ladder 901 and the other extension ladder 902 through a hinge 905 and a fixing device, the hinge 905 connecting the extension ladder 902 located in the middle with the first ladder 901 and the hinge 905 connecting the extension ladder 902 located in the middle with the extension ladder 902 located in the uppermost section are not located at the same side, so that after the folding ladder 9 is folded, the extension ladder 902 located in the middle section is located at the middle position, the first ladder 901 is located at the lowest position, the extension ladder 902 located in the uppermost section is located at the uppermost position, so as to facilitate folding of the folding ladder 9, the first ladder 901 is rotatably sleeved on the outer side wall of the rotating shaft a6, and the first ladder 901 is connected with the inner side wall of the groove a5 through a traction device.
The fixing device comprises a fixing plate 903, the fixing plate 903 is connected with the first ladder 901 and the two sections of extension ladders 902 through fixing bolts 904, the fixing plate 903 and the fixing bolts 904 are matched to fix the first ladder 901 and the two sections of extension ladders 902 together, the folding ladder 9 is kept in the longest state, and the connection mode is stable.
In the present utility model, more specifically, the traction device includes two hydraulic rods 7, and both ends of the hydraulic rods 7 are connected to the side wall of the first ladder 901 and the inner side wall of the groove a5, respectively, by means of a rotation connection member 8. The hydraulic rod 7 can play a role in traction of the folding cat ladder 9, so that the folding cat ladder 9 can only rotate a certain angle on the movable trolley 1.
The inner side wall of one side of the groove a5 far away from the push handle 2 is connected with a folding cat ladder 9 through a rotating shaft a6, one end of the movable trolley 1 far away from the push handle 2 is provided with an anti-tilting device, the anti-tilting device comprises a movable block 11, one end of the movable trolley 1 far away from the push handle 2 is provided with a groove b15, the movable block 11 is connected with the inner side wall of the groove b15 through two multisection telescopic rods 10, two screw rods a12 are connected to the movable block 11 in a threaded mode, the bottom of each screw rod a12 penetrates through the movable block 11 and is fixedly connected with a supporting block a14, and the top of each screw rod a12 is fixedly connected with a handle a13. The movable block 11 and the two multi-section telescopic rods 10 can improve the occupied area of the movable trolley 1, so that the stability of the movable trolley 1 is improved, the situation that a worker uses the high-voltage line maintenance ladder to maintain a high-voltage line is avoided, after the high-voltage line maintenance ladder is used, the distance between the movable block 11 and the movable trolley 1 can be reduced according to the requirement of transportation and carrying, and the convenience of transportation and carrying is improved.
The anti-rollover device is installed on two sides of the mobile cart 1 and comprises fixed blocks 16 fixedly connected to the side walls on two sides of the mobile cart 1, a rotating plate 18 is connected to the top of each fixed block 16 through a rotating shaft b17, a screw rod b19 is connected to one end of each rotating plate 18, which is far away from the rotating shaft b17, in a threaded mode, the bottom of each screw rod b19 penetrates through the corresponding rotating plate 18 and is fixedly connected with a supporting block b21, and a handle b20 is fixedly connected to the top of each screw rod b 19. When the high-voltage line maintenance ladder is used, the included angle between the rotating plate 18 and the movable trolley 1 is adjusted to 90 degrees, the occupied area of the movable trolley 1 can be enlarged, so that the stability of the movable trolley 1 is improved, the phenomenon that a worker turns over when using the high-voltage line maintenance ladder to maintain a high-voltage line can be avoided, the rotating plate 18 is rotatably arranged on the fixed block 16, the rotating plate 18 can be rotated when the high-voltage line maintenance ladder is not needed to be used, the rotating plate is contacted with the side wall of the movable trolley 1, the occupied area of the high-voltage line maintenance ladder is reduced, and the high-voltage line maintenance ladder is convenient to transport and carry.
In the present utility model, more specifically, the top of the mobile cart 1 is provided with a receiving groove 4 for receiving a tool, a fixing plate 903 and a fixing bolt 904.
The utility model can explain its functional principle by the following modes of operation:
when the high-voltage line overhaul ladder is required to be used for overhauling the high-voltage line, the movable trolley 1 is moved to an overhaul site, the movable block 11 is pulled in the direction away from the movable trolley 1, then the supporting block a14 on the movable block 11 is adjusted to be in contact with the ground, the included angle between the rotating plate 18 and the movable trolley 1 is adjusted to 90 degrees, the screw rod b19 is rotated to adjust the supporting block b21 to be in contact with the ground, and finally the length of the folding cat ladder 9 and the inclination angle on the movable trolley 1 are adjusted.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The utility model provides a high-voltage line maintenance ladder, includes removal shallow (1), its characterized in that, four gyro wheels (3) are installed to the bottom of removal shallow (1), one side fixedly connected with push handle (2) of removal shallow (1), be provided with recess a (5) on removal shallow (1), one side inside wall that push handle (2) was kept away from to recess a (5) is connected with folding cat ladder (9) through pivot a (6), the one end that push handle (2) was kept away from to removal shallow (1) is installed and is prevented the tilting device, the rollover prevention device is all installed to the both sides of removal shallow (1);
the rollover prevention device comprises fixed blocks (16) fixedly connected to side walls on two sides of the movable trolley (1), a rotating plate (18) is connected to the top of each fixed block (16) through a rotating shaft b (17), a screw rod b (19) is connected to one end, far away from the rotating shaft b (17), of each rotating plate (18) in a threaded mode, the bottom of each screw rod b (19) penetrates through each rotating plate (18) and is fixedly connected with a supporting block b (21), and a handle b (20) is fixedly connected to the top of each screw rod b (19).
2. The high-voltage line overhaul ladder according to claim 1, wherein the folding ladder (9) comprises a first ladder (901) and two extension ladders (902), and two ends of the extension ladder (902) in the middle are respectively connected with the first ladder (901) and the other extension ladder (902) through hinges (905) and fixing devices;
the fixing device comprises a block fixing plate (903), and the fixing plate (903) is respectively connected with the first ladder (901) and the two sections of extension ladders (902) through fixing bolts (904);
the first crawling ladder (901) is rotatably sleeved on the outer side wall of the rotating shaft a (6), and the first crawling ladder (901) is connected with the inner side wall of the groove a (5) through the traction device.
3. The high-voltage line maintenance ladder according to claim 2, characterized in that the traction device comprises two hydraulic rods (7), and two ends of the hydraulic rods (7) are connected with the side wall of the first ladder stand (901) and the inner side wall of the groove a (5) respectively through rotating connecting pieces (8).
4. A high voltage line service ladder according to claim 2, characterized in that the top of the mobile cart (1) is provided with a receiving groove (4) for receiving tools, fixing plates (903) and fixing bolts (904).
5. The high-voltage line overhaul ladder according to claim 1, characterized in that the anti-tilting device comprises a moving block (11), one end of the moving trolley (1) away from the pushing handle (2) is provided with a groove b (15), the moving block (11) is connected with the inner side wall of the groove b (15) through two multisection telescopic rods (10), two screw rods a (12) are connected to the moving block (11) in a threaded mode, the bottom of the screw rod a (12) penetrates through the moving block (11) and is fixedly connected with a supporting block a (14), and the top of the screw rod a (12) is fixedly connected with a handle a (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568421.7U CN220267579U (en) | 2022-09-28 | 2022-09-28 | High-voltage wire road maintenance ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568421.7U CN220267579U (en) | 2022-09-28 | 2022-09-28 | High-voltage wire road maintenance ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220267579U true CN220267579U (en) | 2023-12-29 |
Family
ID=89317619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222568421.7U Active CN220267579U (en) | 2022-09-28 | 2022-09-28 | High-voltage wire road maintenance ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220267579U (en) |
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2022
- 2022-09-28 CN CN202222568421.7U patent/CN220267579U/en active Active
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