CN214886794U

CN214886794U - Novel ladder stand for extra-high voltage line maintenance

Info

Publication number: CN214886794U
Application number: CN202121249733.0U
Authority: CN
Inventors: 支宇
Original assignee: Individual
Current assignee: Super High Voltage Transmission Branch Of State Grid Shanxi Electric Power Co
Priority date: 2021-06-05
Filing date: 2021-06-05
Publication date: 2021-11-26
Anticipated expiration: 2031-06-05

Abstract

The utility model discloses a novel crawling ladder for ultra-high voltage line maintenance, which comprises a mobile cart, a containing groove, a folding crawling ladder assembly, an inclination angle oblique-pulling adjusting assembly, a handle, wheels and a pushing handle, wherein the outer wall of one side of the top end of the mobile cart is provided with the containing groove, the inside of the containing groove is provided with the folding crawling ladder assembly, and the outer wall of the mobile cart on one side of the containing groove is provided with the inclination angle oblique-pulling adjusting assembly; a first ladder stand is arranged in one end of the accommodating 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 utility model discloses a cat ladder structure is folding accomodate in the inslot of accomodating of travelling car, and convenient transportation is removed, and the folding of multiunit cat ladder subassembly can be realized accomodating to the setting of folding cat ladder subassembly, makes the in-process can carry out vertical the erectting according to the height, and the inclination draws adjusting part's setting to one side, and the wire rope that draws to one side through both sides carries out the traction atress of cat ladder, and can adjust the length that draws wire rope to one side and carry out the regulation of cat ladder gradient.

Description

Novel ladder stand for extra-high voltage line maintenance

Technical Field

The utility model relates to an overhaul ladder technical field specifically is a novel cat ladder is overhauld to extra-high voltage line.

Background

The ultra-high voltage transmission line is used for transmitting electric energy in voltage grades of +/-800 kV or more direct current and 1000 kV or more alternating current; the ultrahigh voltage transmission line is developed on the basis of ultrahigh voltage transmission, the purpose of the ultrahigh voltage transmission line is to continuously improve the transmission capacity, realize high-power medium and long-distance transmission, realize long-distance power system interconnection, build a combined power system, erect the ultrahigh voltage transmission line at a higher position, and need a worker to climb in the maintenance process of the ultrahigh voltage transmission line, while the traditional ladder stand structure is highly limited and cannot be used by an ultrahigh voltage line, and the ladder stand structure is large in size and is not beneficial to transportation and carrying in the use process, so that the novel ladder stand for overhauling the ultrahigh voltage line is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel cat ladder is overhauld to extra-high voltage line to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a novel ladder stand for ultra-high voltage line maintenance comprises a movable trolley, a containing groove, a folding ladder stand component, an inclination angle oblique-pulling adjusting component, a handle, wheels and a pushing handle, wherein the containing groove is formed in the outer wall of one side of the top end of the movable trolley, the folding ladder stand component is arranged inside the containing groove, and the inclination angle oblique-pulling adjusting component is arranged on the outer wall of one side of the containing groove of the movable trolley;

folding cat ladder subassembly includes first cat ladder, installation axle, hinge, second cat ladder, peg graft pole, block, inserting groove and block mouth, the inside of accomodating groove one end is provided with first cat ladder, it is connected with the installation axle to rotate on the outer wall of first cat ladder bottom both sides, and installs axle one end and the inner wall fixed connection who accomodates groove one side, there is the second cat ladder through hinged joint on the outer wall of top one side of first cat ladder, fixedly connected with peg graft pole on the outer wall that second cat ladder bottom is located hinge one side, be fixed with the block on the outer wall of bottom one side of peg graft pole, the inserting groove has been seted up to corresponding the peg graft pole on the outer wall of top both sides of first cat ladder, link up on the inner wall of bottom one side of inserting groove and seted up the block mouth.

Further, the inclined-pulling adjusting assembly for the inclination angle comprises a mounting frame, a rotating shaft, a coiling disc, an inclined steel wire rope, a hook, a connecting ring, a gear, a fixing block, a connecting shaft, a pawl and a spring, wherein the mounting frame is symmetrically connected to the outer wall on one side of the top end of the mobile cart, the rotating shaft is rotatably connected to the inner wall between the mounting frames, the coiling disc is fixedly sleeved on the outer walls at two ends of the rotating shaft, the inclined steel wire rope is fixedly wound on the outer wall of the coiling disc, the hook is connected to the outer wall at one end of the inclined steel wire rope, the connecting ring is fixedly connected to the outer walls at two sides of the first ladder stand and the second ladder stand, the gear is fixedly connected to the outer wall at one end of the rotating shaft, the handle is connected to the outer wall at one side of the gear, the fixing block is connected to the outer wall at one side of the mounting frame, and the pawl is rotatably installed on the outer wall at one side of the fixing block through the connecting shaft, and a spring is connected on the outer wall between the pawl and the fixed block.

Furthermore, the clamping block and the clamping opening are matched components, and the clamping block is conical.

Furthermore, the pawl and the gear are matched components, and one end of the pawl is clamped in a gear groove of the gear.

Furthermore, one end of the spring is connected with the outer wall of one side of the pawl, and the other end of the spring is connected with the outer wall of the fixed block.

Furthermore, wheels are arranged on the outer wall of the dead angle at the bottom end of the movable trolley, a brake is arranged above the wheels, and a pushing handle is connected to the outer wall of one side of the movable trolley.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model has the advantages that the structure is compact and reasonable, the ladder stand structure is folded and stored in the storage groove of the mobile cart, the transportation and the movement are convenient, and the maintenance and the use of the ultra-high voltage line are facilitated; the folding of multiunit cat ladder subassembly is accomodate in the setting of folding cat ladder subassembly, can realize making the in-process and carrying out vertical the setting according to the height, and the inclination draws adjusting part's setting to one side, draws wire rope to one side through both sides to carry out the traction stress of cat ladder, and can adjust to draw wire rope's length to one side to carry out the regulation of cat ladder gradient.

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 embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is an enlarged view of the area A of FIG. 1;

FIG. 3 is an enlarged view of the structure of the area B of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure of the area C of FIG. 1 according to the present invention;

in the figure: 1. moving the cart; 2. a receiving groove; 3. a folding ladder assembly; 4. the inclined angle inclined pulling adjusting assembly; 5. a handle; 6. a wheel; 7. a push handle; 31. a first ladder stand; 32. installing a shaft; 33. a hinge; 34. a second ladder stand; 35. a plug rod; 36. a clamping block; 37. inserting grooves; 38. a clamping opening; 41. a mounting frame; 42. a rotating shaft; 43. coiling a disc; 44. cable-stayed steel wire ropes; 45. hooking; 46. a connecting ring; 47. a gear; 48. a fixed block; 49. a connecting shaft; 410. a pawl; 411. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a novel ladder stand for maintenance of an ultra-high voltage line comprises a movable trolley 1, a containing groove 2, a folding ladder stand component 3, an inclination angle oblique-pulling adjusting component 4, a handle 5, wheels 6 and a push handle 7, wherein the containing groove 2 is formed in the outer wall of one side of the top end of the movable trolley 1, the wheels 6 are arranged on the outer wall of a dead angle at the bottom end of the movable trolley 1, a brake is arranged above the wheels 6, and the push handle 7 is connected to the outer wall of one side of the movable trolley 1; the ladder stand structure is folded and stored in the storage groove 2 of the mobile cart 1, the mobile cart 1 can be transported and moved through the structural cooperation of the wheels 6 and the push handle 7, the maintenance and the use of an ultra-high voltage line are facilitated, the wheels 6 are braked through the brake after the mobile cart is moved to a position needing to be used, and the position of the mobile cart 1 is fixed;

the folding ladder stand component 3 is arranged in the accommodating groove 2, the folding ladder stand component 3 comprises a first ladder stand 31, an installation shaft 32, a hinge 33, a second ladder stand 34, an insertion rod 35, a clamping block 36, an insertion groove 37 and a clamping port 38, the first ladder stand 31 is arranged in one end of the accommodating groove 2, the installation shaft 32 is rotatably connected on the outer walls of the two sides of the bottom end of the first ladder stand 31, one end of the installation shaft 32 is fixedly connected with the inner wall of one side of the accommodating groove 2, the outer wall of one side of the top end of the first ladder stand 31 is connected with the second ladder stand 34 through the hinge 33, the insertion rod 35 is fixedly connected on the outer wall of one side of the hinge 33 at the bottom end of the second ladder stand 34, the clamping block 36 is fixed on the outer wall of one side of the bottom end of the insertion rod 35, the insertion groove 37 is formed on the outer wall of the two sides of the top end of the first ladder stand 31 corresponding to the insertion rod 35, the clamping port 38 is formed on the inner wall of one side of the bottom end of the insertion groove 37, the clamping block 36 and the clamping port 38 are matched components, the clamping block 36 is conical, the second ladder stand 34 is sequentially turned over under the action of the hinge 33 in the use process of fixing the ladder stand of the mobile cart 1, the insertion rod 35 at the end part of one second ladder stand 34 is inserted into the insertion groove 37 at the end part of the other second ladder stand 34 or the first ladder stand 31 in the turning vertical process of the second ladder stand 34, the clamping block 36 at the end part of the insertion rod 35 is clamped into the clamping port 38 in the insertion groove 37 by pressing the ladder stand, the first ladder stand 31 at the bottom in the storage groove 2 is vertically turned over under the action of the mounting shaft 32, the vertical erection of the ladder stand in the use state is realized, and the turning of the vertical assembled ladder stand can be realized according to the use requirement of the height;

the outer wall of the mobile cart 1 at one side of the accommodating groove 2 is provided with an inclined-pull adjusting component 4, the inclined-pull adjusting component 4 comprises an installation frame 41, a rotating shaft 42, a winding disc 43, an inclined-pull steel wire rope 44, a hook 45, a connecting ring 46, a gear 47, a fixing block 48, a connecting shaft 49, a pawl 410 and a spring 411, the outer wall at one side of the top end of the mobile cart 1 is symmetrically connected with the installation frame 41, the rotating shaft 42 is rotatably connected with the inner wall between the installation frames 41, the winding discs 43 are fixedly sleeved on the outer walls at two ends of the rotating shaft 42, the inclined-pull steel wire rope 44 is wound and fixed on the outer wall of the winding disc 43, the hook 45 is connected on the outer wall at one end of the inclined-pull steel wire rope 44, the connecting rings 46 are fixedly connected on the outer walls at two sides of the first ladder 31 and the second ladder 34, the gear 47 is fixedly connected on the outer wall at one end of the rotating shaft 42, and a handle 5 is connected on the outer wall at one side of the gear 47, the outer wall of one side of the mounting frame 41 is connected with a fixed block 48, the outer wall of one side of the fixed block 48 is rotatably provided with a pawl 410 through a connecting shaft 49, the outer wall between the pawl 410 and the fixed block 48 is connected with a spring 411, the pawl 410 and the gear 47 are matched components, one end of the pawl 410 is clamped in a tooth groove of the gear 47, one end of the spring 411 is connected with the outer wall of one side of the pawl 410, and the other end of the spring 411 is connected with the outer wall of the fixed block 48, in the overturning process of the first ladder stand 31 and the second ladder stand 34, the pawl 410 can be pressed, the pawl 410 overturns under the action of the connecting shaft 49, so that the end part of the pawl 410 is moved away from the tooth groove of the gear 47, the diagonal steel wire ropes 44 at two sides can be pulled out, hooks 45 at the end parts of the diagonal steel wire ropes 44 at two sides are hung and buckled on connecting rings 46 at two sides of the ladder stand, in the overturning process of the mounting shaft 32, the gear 47 is driven to rotate through a handle 5, the winding disc 43 is driven by the rotating shaft 42 to rotate forwardly, the winding disc 43 can wind a diagonal steel wire rope 44, the wound diagonal steel wire rope 44 can pull the ladder stand to be vertical, the pawl 410 can be crossed in the forward rotation process of the gear 47, the pawl 410 can be reset and clamped in a tooth groove of the gear 47 under the action of the spring 411, the length of the diagonal steel wire rope 44 is fixed, the diagonal steel wire ropes 44 on two sides are pulled to bear force in the climbing use process of the ladder stand, climbing at a high position of the ladder stand is facilitated, the matching of the hook 45 and the connecting ring 46 can be relieved for the ladder stand after use, the clamping of the clamping block 36 and the clamping port 38 can be relieved by pressing at the clamping port 38, the second ladder stand 34 and the first ladder stand 31 are folded under the action of the hinge 33 and are stored in the storage groove 2.

The working principle is as follows: when the overhauling crawling ladder is used, the wheel 6 and the push handle 7 are structurally matched to transfer and move the movable cart 1, so that the overhauling and use of an ultra-high voltage line are facilitated, the wheels 6 are braked by the brake after the ladder is moved to the position to be used, so that the position of the movable cart 1 is fixed, and when the ladder is used, the second ladder stand 34 is turned over in turn under the action of the hinge 33, and during the turning-over and vertical process of the second ladder stand 34, the insertion rod 35 at the end part of one second ladder stand 34 is inserted into the insertion groove 37 at the end part of the other second ladder stand 34 or the first ladder stand 31 in an aligned manner, the ladder stand is pressed to enable the clamping block 36 at the end part of the insertion rod 35 to be clamped into the clamping opening 38 in the insertion groove 37, the first ladder stand 31 is vertically overturned under the action of the mounting shaft 32, vertical erection of the ladder stand in a use state is realized, and the vertical erection of the vertical assembly ladder stand can be overturned according to the use requirement of height; during the vertical turning process of the first ladder stand 31 and the second ladder stand 34, the pawl 410 can be pressed, the pawl 410 is turned under the action of the connecting shaft 49, the end part of the pawl 410 is moved away from the tooth space of the gear 47, the cable-stayed steel cables 44 at two sides can be pulled out, the hooks 45 at the end parts of the cable-stayed steel cables 44 at two sides are taken to be hung and buckled on the connecting rings 46 at two sides of the ladder stand, the gear 47 is driven to rotate by the handle 5, the winding disc 43 is driven to rotate forwardly by the rotating shaft 42, the winding disc 43 winds the cable-stayed steel cables 44, the wound cable-stayed steel cables 44 can pull the ladder stand to be vertical, the pawl 410 can be crossed during the forward rotation process of the gear 47, the pawl 410 can be reset and clamped into the tooth space of the gear 47 under the action of the spring 411, the length of the cable-stayed steel cables 44 is fixed, and the ladder stand is pulled and stressed by the cable-stayed steel cables 44 at two sides during the climbing use process, the ladder stand is beneficial to climbing at a high place of the ladder stand, the matching of the hook 45 and the connecting ring 46 can be released after the ladder stand is used, the clamping of the clamping block 36 and the clamping opening 38 can be released by pressing at the clamping opening 38, and the second ladder stand 34 and the first ladder stand 31 are folded under the action of the hinge 33 and are stored in the storage groove 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel cat ladder of extra-high voltage line maintenance, includes removal shallow (1), accomodates groove (2), folding cat ladder subassembly (3), inclination draw adjusting part (4), hand (hold) (5), wheel (6) and push away (7) to one side, its characterized in that: a containing groove (2) is formed in the outer wall of one side of the top end of the movable cart (1), a folding crawling ladder assembly (3) is arranged inside the containing groove (2), and an inclined-pull adjusting assembly (4) is arranged on the outer wall of one side, located on the containing groove (2), of the movable cart (1);

the folding crawling ladder assembly (3) comprises a first crawling ladder (31), an installation shaft (32), a hinge (33), a second crawling ladder (34), an insertion rod (35), a clamping block (36), an insertion groove (37) and a clamping port (38), wherein the first crawling ladder (31) is arranged inside one end of the accommodating groove (2), the installation shaft (32) is rotatably connected to the outer walls of the two sides of the bottom end of the first crawling ladder (31), one end of the installation shaft (32) is fixedly connected with the inner wall of one side of the accommodating groove (2), the second crawling ladder (34) is connected to the outer wall of one side of the top end of the first crawling ladder (31) through the hinge (33), the insertion rod (35) is fixedly connected to the outer wall of the bottom end of the second crawling ladder (34) located on one side of the hinge (33), the clamping block (36) is fixedly arranged on the outer wall of one side of the bottom end of the insertion rod (35), the insertion groove (37) is formed in the outer wall of the two sides of the top end of the first crawling ladder (31) corresponding to the insertion rod (35), the inner wall of one side of the bottom end of the inserting groove (37) is provided with a clamping opening (38) in a through way.

2. The novel ladder stand for extra-high voltage line maintenance according to claim 1, is characterized in that: the inclination angle inclined-pulling adjusting assembly (4) comprises an installation frame (41), a rotating shaft (42), a coiling disc (43), inclined-pulling steel wire ropes (44), hooks (45), a connecting ring (46), gears (47), fixing blocks (48), a connecting shaft (49), a pawl (410) and a spring (411), wherein the installation frame (41) is symmetrically connected to the outer wall on one side of the top end of the mobile cart (1), the rotating shaft (42) is connected to the inner wall between the installation frame (41) in a rotating manner, the coiling disc (43) is fixedly sleeved on the outer walls at the two ends of the rotating shaft (42), the inclined-pulling steel wire ropes (44) are fixedly wound on the outer wall of one end of each inclined-pulling steel wire rope (44), the hooks (45) are connected to the outer wall at the two ends of the first ladder stand (31) and the second ladder stand (34), the gears (47) are fixedly connected to the outer wall at one end of the rotating shaft (42), and be connected with hand (5) on the outer wall of gear (47) one side, be connected with fixed block (48) on the outer wall of mounting bracket (41) one side, rotate through connecting axle (49) on the outer wall of fixed block (48) one side and install pawl (410), be connected with spring (411) on the outer wall between pawl (410) and fixed block (48).

3. The novel ladder stand for extra-high voltage line maintenance according to claim 2, is characterized in that: the clamping block (36) and the clamping opening (38) are matched components, and the clamping block (36) is conical.

4. The novel crawling ladder for extra-high voltage line maintenance according to claim 3, characterized in that: the pawl (410) and the gear (47) are matched components, and one end of the pawl (410) is clamped in a tooth groove of the gear (47).

5. The novel crawling ladder for extra-high voltage line maintenance according to claim 3, characterized in that: one end of the spring (411) is connected with the outer wall of one side of the pawl (410), and the other end of the spring (411) is connected with the outer wall of the fixed block (48).

6. The novel ladder stand for extra-high voltage line maintenance according to claim 1, is characterized in that: wheels (6) are arranged on the outer wall of the dead angle at the bottom end of the movable trolley (1), a brake is arranged above the wheels (6), and a pushing handle (7) is connected to the outer wall of one side of the movable trolley (1).