CN111691811A - Pole-mounted switch maintenance ladder - Google Patents
Pole-mounted switch maintenance ladder Download PDFInfo
- Publication number
- CN111691811A CN111691811A CN202010529674.6A CN202010529674A CN111691811A CN 111691811 A CN111691811 A CN 111691811A CN 202010529674 A CN202010529674 A CN 202010529674A CN 111691811 A CN111691811 A CN 111691811A
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- China
- Prior art keywords
- ladder
- pole
- groove
- switch maintenance
- frame
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Classifications
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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
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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
- E06C7/003—Indicating devices, e.g. user warnings or inclinators
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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
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
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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
- E06C7/42—Ladder feet; Supports therefor
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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
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
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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
- E06C7/50—Joints or other connecting parts
- E06C7/505—Anchors being adapted to fix a ladder to a vertical structure, e.g. ladder hooks
Abstract
The invention relates to the technical field of electrician auxiliary equipment, in particular to a pole-mounted switch maintenance ladder, which comprises a ladder frame, a ladder, a support rod and a locking device, wherein the ladder frame is fixedly connected with an electric pole; the upper end of the ladder is hinged with the ladder frame; the support rod is hinged with the lower end of the ladder; the ladder is provided with a first position and a second position, when the ladder is at the first position, the length direction of the ladder is parallel to the extending direction of the electric pole, and when the ladder is at the second position, the support rod can support the lower end of the ladder, so that the length direction of the ladder and the extending direction of the electric pole form an included angle; when the ladder is in the first position, the locking device can lock the ladder to the ladder rack or the electric pole. The invention can solve the problem of safe operation of maintainers.
Description
Technical Field
The invention relates to the technical field of electrician auxiliary equipment, in particular to a pole-mounted switch maintenance ladder.
Background
At present, the 10KV pole-mounted switches are widely distributed, various problems inevitably occur in daily operation, the safe operation of a power distribution network system is affected, the normal power supply is limited, and in order to ensure the safety of a power grid and improve the power supply quality, the equipment maintenance and the overhaul of the pole-mounted switches are more and more frequent, and the pole-mounted switches need to climb up through a ladder in the maintenance process.
The existing ladder is mainly integrated with an electric pole, and whether equipment to be maintained is powered off or not, maintenance and repair personnel can climb up through the ladder, so that certain threat is caused to the personal safety of the maintenance and repair personnel in the operation process.
Disclosure of Invention
Based on the above, the invention aims to provide a pole-mounted switch maintenance ladder to solve the problem of safe operation of maintainers.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a pole top switch maintenance ladder, comprising: the ladder frame is fixedly connected with the electric pole; the upper end of the ladder is hinged with the ladder frame; the support rod is hinged with the lower end of the ladder; the ladder is provided with a first position and a second position, when the ladder is at the first position, the length direction of the ladder is parallel to the extending direction of the electric pole, and when the ladder is at the second position, the support rod can support the lower end of the ladder, so that the length direction of the ladder and the extending direction of the electric pole form an included angle; a locking device capable of locking the ladder to the ladder rack or to the pole when the ladder is in the first position.
Optionally, the locking device includes a groove and a sealing member, the groove is disposed on the ladder frame or the electric pole, a fixing member is disposed on the ladder, and the sealing member is used for sealing the fixing member in the groove.
Optionally, the closure member comprises a stop and at least one electromagnet; the stop piece with the electro-magnet all set up in the opening side of recess, the electro-magnet is used for adsorbing the stop piece, the stop piece is used for with the mounting is sealed in the recess.
Optionally, the closing member includes a baffle and a lock, the two baffles are arranged in parallel outside the groove, each baffle is provided with a lock hole, and the lock can be matched with the lock hole to lock the fixing member in the groove.
Optionally, the ladder comprises two long rods and a plurality of foot pedals, the foot pedals are arc-shaped rods matched with the electric rods, and the arc-shaped rods are fixedly connected between the two long rods at equal intervals; the lower ends of the two long rods are respectively hinged with the supporting rods, and the fixing pieces are arranged on the long rods.
Optionally, the ladder includes two first long rods, two second long rods and a pedal, the pedal is square, the pedals are arranged in parallel, two short shafts are respectively arranged in the width direction of the pedal, the two short shafts in the width direction of the pedal and located at the front end are respectively hinged to the two first long rods, and the two short shafts in the width direction of the pedal and located at the rear end are respectively hinged to the two second long rods; the supporting rod is provided with two mounting holes, the distance between the centers of the two mounting holes is the same as the distance between the centers of the two short shafts on the same side in the width direction of the pedal, one of the mounting holes is rotatably connected with one of the short shafts, and the other mounting hole is rotatably connected with the other short shaft.
Optionally, the ladder rack is provided with a fixing groove corresponding to the support rod, and the fixing groove is used for fixing the other end of the support rod.
Optionally, the ladder frame is close to the pole side and is equipped with two inclined planes, two the inclined plane constitutes the edge the V type groove of ladder frame direction of height, V type groove with the pole butt, the ladder frame passes through staple bolt and pole rigid coupling.
Optionally, an annular groove matched with the hoop is formed in the side, close to the electric pole, of the ladder frame; and second mounting grooves are formed in two sides of the annular groove in the vertical direction and are used for matching with pressing sheets, and the pressing sheets fix the hoop in the annular groove.
Optionally, a reflecting sticker is pasted on the ladder frame and the ladder, and a transparent rubber pad is arranged at the pedal position on the surface of the reflecting sticker of the pedal.
The invention has the beneficial effects that:
the ladder provided by the embodiment of the invention is fixed on the ladder frame through the locking device, and the locking device needs to be unlocked before the ladder is opened, so that information can be prompted for a maintainer in the process, the maintainer is guided to open the ladder for use after the power of equipment to be overhauled is cut off, the condition that the part to be overhauled is in a power-off state during operation is ensured, and the safety of the maintainer in the overhauling process is improved.
Drawings
Fig. 1 is a front view of a pole top switch maintenance ladder provided by an embodiment of the present invention;
FIG. 2 is a left side view of a pole top switch maintenance ladder provided in accordance with an embodiment of the present invention;
FIG. 3A is an enlarged fragmentary view taken at A in FIG. 1 with the ladder of the present invention in a first position;
FIG. 3B is an enlarged fragmentary view of a second portion of FIG. 1A with the ladder of the present invention in a first position;
fig. 4 is a top view of a pole switch maintenance ladder provided by an embodiment of the present invention;
FIG. 5 is a top plan view of a ladder frame and ladder structure provided by an embodiment of the present invention;
fig. 6 is a partial schematic view of the ladder rack near the side of the electric pole provided by the embodiment of the invention.
In the figure:
1-a ladder frame; 11; a fixed block; 12-a guardrail; 13-a fixed groove; 14-a locking device; 140-a closure member; 1411-grooves; 1412-a baffle; 1413-locking; 1421 — first mounting groove; 1422-stop; 14221-weight block; 14222-stop block; 1423-electromagnet; 15-inclined plane; 151-annular groove; 152-a second mounting groove; 153-tabletting; 16-a tray; 161-ground insulation detector; 162-a pressure monitor; 163-temperature and humidity monitor; 164-diagonal rods;
2, a ladder; 21-long rod; 211-a first long rod; 212-a second long rod; 22-foot pedal; 23-a fixing member; 231-a fixed head; 24-a support bar; 241-mounting holes; 2411-a first mounting hole; 2412-a second mounting hole; 242-a handle;
100-pole;
200-anchor ear.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention; referring to fig. 1, the present embodiment provides a pole switch maintenance ladder, which includes a ladder frame 1, a ladder 2, and a support rod 24, wherein the ladder frame 1 is fixedly connected to an electric pole 100; the upper end of the ladder 2 is hinged with the ladder frame 1; the support rod 24 is hinged with the lower end of the ladder 2; the ladder 2 is provided with a first position and a second position, when the ladder 2 is at the first position, the length direction of the ladder 2 is parallel to the extending direction of the electric pole 100, and when the ladder 2 is at the second position, the support rod 24 can support the lower end of the ladder 2, so that the length direction of the ladder 2 and the extending direction of the electric pole 100 form an included angle; a locking device 14, the locking device 14 being capable of locking the ladder 2 to the ladder rack 1 or pole 100 when the ladder 2 is in the first position.
In this embodiment, the locking device 14 is preferably arranged on the ladder frame 1, and further, the ladder frame 1 may be provided with guard rails 12 on both sides thereof, and when the ladder 2 is in the first position, the ladder 2 is located in the guard rails 12 and protected by the guard rails 12. Of course, in other embodiments, the locking device 14 may be disposed on the electric pole 100, and when the locking device 14 may be disposed on the electric pole 100, the locking device 14 and the ladder rack 1 are of a separate structure, and the locking device 14 may be separately fixedly connected to the electric pole 100, which makes the locking device 14 convenient for maintenance and replacement.
Fig. 2 is a left side view of fig. 1 according to an embodiment of the present invention, and in conjunction with fig. 2, further, the locking device 14 includes a groove 1411 and a closing member 140, the groove 1411 is disposed on the ladder frame 1 or the pole 100, the ladder 2 is provided with a fixing member 23, and the closing member 140 is used for closing the fixing member 23 in the groove 1411. This arrangement, by enclosing the securing members 23 in the grooves 1411, causes the ladder 2 to be in a locked condition and rendered inoperable. Optionally, the one end of the fixing member 23 is provided with a detachable fixing head 231, the fixing head 231 is used for matching with the groove 1411 and locking the ladder 2, and the arrangement is convenient for maintenance and replacement.
Fig. 3A is an enlarged partial view of a portion a of fig. 1 with the ladder in the first position according to an embodiment of the present invention, and in conjunction with fig. 3A, further, the closing member 140 includes a stop 1422 and at least one electromagnet 1423; the opening side of the groove 1411 is provided with a first mounting groove 1421, and the stopper 1422 and the electromagnet 1423 are both disposed in the first mounting groove 1421.
When the multifunctional ladder 2 is operated, equipment to be maintained is powered off, meanwhile, the electromagnet 1423 is powered off and loses magnetism, the electromagnet 1423 is separated from the stop piece 1422, the stop piece 1422 can be far away from the groove 1411, the fixing piece 23 can be taken out of the groove 1411, the ladder 2 is opened, if the electromagnet 1423 is not powered off, when a user wants to open the ladder 2, the ladder cannot be opened, the opening process of the ladder 2 is blocked, and the multifunctional ladder belongs to prompt information and prompts an operator to power off firstly and then open the ladder 2 and perform maintenance operation.
Alternatively, the stopper 1422 may be a straight rod or a rotating rod. When the stop part 1422 is a straight rod, the electromagnet 1423 is installed above the opening side of the groove 1411, a vertical chute is arranged below the opening side of the groove 1411, the depth of the vertical chute is consistent with the length of the straight rod, a horizontal handle facing the opening side of the groove 1411 is arranged at the top end of the straight rod and used for manually lifting the straight rod in the vertical chute, when the straight rod is used for closing the opening of the groove 1411, the electromagnet 1423 is attracted with the straight rod, when the electromagnet 1423 is powered off, the straight rod is separated from the electromagnet 1423 and falls to the bottom of the vertical chute, and the. When the stopper 1422 is a rotating rod, the electromagnet 1423 is fixed on the lower side of the opening side of the groove 1411, the stopper 1422 includes a stopper block 14222 and a weight block 14221, the upper end of the stopper 14222 is hinged on the upper side of the opening side of the groove 1411, the weight block 14221 is disposed on the upper end of the stopper 14222 and close to the bottom side of the groove 1411, the weight block 14221 is disposed such that the center of gravity of the stopper 1422 is shifted, when the stopper 1422 closes the opening of the groove 1411, the center of gravity of the stopper 1422 is located on the bottom side of the hinge point of the stopper 1422 close to the bottom side of the groove 1411, when the device to be maintained is powered off, the electromagnet 1423 is powered off and loses magnetism, the hinged stopper 1422 rotates around the opening side of the hinge axis 1411 by a certain angle under the action of its own gravity, at this time, the groove 1411 is in an open state, the ladder 2 is opened.
Certainly, the stop member 1422 may also be hinged to the lower side of the opening side of the groove 1411, in this embodiment, the weight-balancing block 14221 is disposed on the side of the stop block 14222 away from the groove 1411, so that the center of gravity is shifted, when the stop member 1422 closes the opening of the groove 1411, the center of gravity of the stop member 1422 is located on the side of the hinge point of the stop member 1422 away from the groove 1411, the electromagnet 1423 is fixed to the lower side and/or the upper side of the opening side of the groove 1411, when the electromagnet 1423 is de-energized, due to the center of gravity, under the action of the self gravity of the stop member 1422, the hinged stop member 1422 rotates around the opening side of the. Two electromagnets 1423 are provided, which can effectively prevent accidents caused by the failure of one electromagnet 1423.
Fig. 4 is a schematic structural view provided by an embodiment of the present invention, and with reference to fig. 4, further, the ladder 2 includes two long rods 21 and a plurality of pedals 22, the upper ends of the two long rods 21 are hinged to the ladder frame 1, the pedals 22 are arc-shaped rods adapted to the electric poles 100, and the arc-shaped rods are equidistantly fixed between the two long rods 21; the lower ends of the two long rods 21 are respectively hinged with a support rod 24, and the long rods 21 are provided with fixing pieces 23. Specifically in this embodiment, be equipped with fixed block 11 on the ladder frame 1, two stock 21 upper ends are articulated with fixed block 11, preferably in this embodiment, the axial tangent plane of arc pole is preferred can with pole 100 complex fan-shaped, the radial tangent plane of arc pole is preferred trapezoidal, the axial tangent plane of stock 21 is preferred can the complex fan-shaped with pole 100, because the external diameter of the radial tangent plane of arc pole is less, when ladder 2 leans on ladder frame 1, the people's foot can't stand, and stock 21 also can't hand, consequently, need follow ladder frame 1 with ladder 2 and open normal use after the unblock. In other embodiments, the radial section of the arc-shaped rod may be circular or square, so long as it is ensured that the foot of the user cannot step on the ladder 2 when the ladder 2 is attached to the ladder frame 1, i.e., when the ladder 2 is locked to the ladder frame 1.
Further alternatively, the ladder 2 may have other structures, for example, referring to fig. 1, the ladder 2 includes two first long rods 211, two second long rods 212 and the pedal plate 22, the upper ends of the two second long rods 212 are hinged with the ladder frame 1, the pedal plate 22 is square, a plurality of pedal plates 22 are arranged in parallel, the width direction of the pedal plate 22 is respectively provided with two short shafts, the two short shafts in the width direction of the pedal plate 22 and located at the front end are respectively hinged with the two first long rods 211, and the two short shafts in the width direction of the pedal plate 22 and located at the rear end are respectively hinged with the two second long rods 212; the support rod 24 is provided with two mounting holes 241, which are a first mounting hole 2411 and a second mounting hole 2412, the distance between the centers of the first mounting hole 2411 and the second mounting hole 2412 is the same as the distance between the centers of the two short shafts on the same side in the width direction of the pedal plate 22, the first mounting hole 2411 is rotatably connected with one of the short shafts, the second mounting hole 2412 is rotatably connected with the other short shaft, and the first long rod 211 and/or the second long rod 212 are/is provided with a fixing member 23.
In this embodiment, the two second long rods 212 are hinged to the fixing block 11 on the ladder frame 1, and the two first long rods 211 and the two second long rods 212 are opened and closed by rotating the support rod 24, and the pedal plate 22 is driven to change between a horizontal state and an inclined state, when the support rod 24 stands up, the pedal plate 22 is in the inclined state, and when the ladder 2 is opened to be in the second state, the support rod 24 is supported on the fixing groove 13, and the pedal plate 22 is in the horizontal state. In the embodiment, the supporting rod 24 is further divided into two dividing points by the second mounting holes 2412, and the angle is formed, because the pedal 22 is square, for example, when one pedal 22 is connected, after the two first long rods 211 and the two second long rods 212 are closed, the connecting line of the two mounting holes 241 corresponding to the first long rod 211 and the second long rod 212 in the width direction of the ladder 2 forms an angle with the first long rod 211 or the second long rod 212, and the angle of the supporting rod 24 are complementary angles, so that after the two first long rods 211 and the two second long rods 212 are closed, the far end of the supporting rod 24 from the first mounting hole 2411 can be aligned with the second long rod 212, thereby facilitating the installation of the supporting rod 24.
Of course, in other embodiments, the upper ends of the two first long rods 211 can be hinged with the fixing blocks 11 on the ladder frame 1.
Further, the ladder frame 1 is provided with fixing grooves 13 corresponding to the support rods 24, and the fixing grooves 13 are used to fix the other ends of the support rods 24. Further optionally, the support bar 24 is provided with a handle 242 remote from the hinged end, which arrangement facilitates control of the support bar 24 when opening or closing the ladder 2; further, the handle 242 may be a column perpendicular to the support bar 24, since a force away from the pole 100 needs to be applied to the ladder 2 when the ladder 2 is opened and fixed after the ladder 2 forms a certain angle with the ladder frame 1, the handle 242 of the column perpendicular to the support bar 24 can provide a force away from the pole 100 to the ladder 2 while the support bar 24 is opened.
Fig. 5 is a top view of the ladder rack and the ladder structure according to the embodiment of the present invention, and with reference to fig. 5, further, two inclined planes 15 are disposed on the side of the ladder rack 1 close to the electric pole 100, the two inclined planes 15 form a V-shaped groove along the height direction of the ladder rack 1, the V-shaped groove abuts against the electric pole 100, and the ladder rack 1 is fixedly connected to the electric pole 100 through an anchor ear 200. Optionally, ladder frame 1 and staple bolt 200 welding, the setting in V type groove can make ladder frame 1 adapt to the pole 100 of different diameters to ensure that there are two lines and pole 100 contact, increase ladder frame 1's stability, make ladder 2 more stable, safe in the use.
Fig. 6 is a partial schematic view of the ladder frame near the electric pole according to the embodiment of the present invention, and in conjunction with fig. 6, the ladder frame 1 near the electric pole 100 is provided with an annular groove 151 engaged with the hoop 200; and second mounting grooves 152 are formed in two sides of the annular groove 151 in the vertical direction, the two second mounting grooves 152 are used for being matched with pressing sheets 153, and the pressing sheets 153 fix the hoop 200 in the annular groove 151.
Should set up on the one hand and make ladder frame 1 inseparabler with the laminating of staple bolt 200, increase ladder frame 1's fastness, the installation of the ladder frame 1 of being convenient for on the one hand and conveniently change spare part alone in the maintenance process.
Optionally, the ladder frame 1 and the ladder 2 are pasted with a reflective paste, and a transparent rubber pad is arranged on the surface of the reflective paste of the pedal plate 22 at the position of the pedal. Optionally in this embodiment, the place that can see of ladder frame 1 and ladder 2 all can paste reflection of light subsides, the setting of reflection of light subsides for prevent that the vehicle at night from hitting pole 100, when the during operation, when ladder 2 is in the second position, reflection of light effect of reflection of light subsides is more obvious, is favorable to reducing striking pole 100 accident. More closely, the tread of running-board 22 is pasted with the reflection of light subsides, and the reflection of light subsides outside is equipped with transparent rubber pad, and the reflection of light subsides can see through transparent rubber pad and reflect light, should set up and can play the reflection of light effect on the one hand, prevent the traffic accident, can provide great frictional force for maintainer on the one hand, improve the security of climbing.
Optionally, a tray 16 is disposed on the upper portion of the ladder rack 1, and a ground insulation detector 161 for monitoring insulation of the system, a pressure monitor 162 for monitoring voltage, and a temperature and humidity monitor 163 for monitoring temperature and humidity are disposed on the tray 16. Furthermore, a diagonal rod 164 for supporting is arranged between the lower end surface of the tray 16 and the ladder rack 1.
Example two
The present embodiment provides a pole switch maintenance ladder, which has a structure substantially the same as that of the first embodiment, except that the structure of the closing member 140 is different from that of the first embodiment. Fig. 3B is an enlarged partial view of a portion a in fig. 1 of the ladder in the first position according to an embodiment of the present invention, and referring to fig. 3B, further, in this embodiment, the closing member 140 includes a blocking plate 1412 and a lock 1413, the two blocking plates 1412 are disposed in parallel outside the groove 1411, each blocking plate 1412 is provided with a locking hole, and the lock 1413 can cooperate with the locking hole to fix the fixing member 23 in the groove 1411. In this embodiment, when the staff need carry out the operation, need open ladder 2 and just can climb to pole 100 top, but before here, need open ladder 2 lock 1413 on ladder frame 1, could open ladder 2, increase and open this step of buffering of lock 1413, can indicate the staff better and confirm before climbing ladder 2 that whether the equipment of treating maintenance has cut off the power supply, also can avoid non-staff to climb ladder 2 by oneself and produce danger simultaneously. Further, be equipped with the outage suggestion banner around lock 1413, exemplarily, the banner is unblanked for the outage earlier, more directly carries out suggestion effectively to the staff at first scene, reduces operation personnel's risk.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A pole-mounted switch maintenance ladder, comprising:
the ladder rack (1), the ladder rack (1) is fixedly connected with the electric pole (100);
the upper end of the ladder (2) is hinged with the ladder frame (1);
the supporting rod (24), the said supporting rod (24) is hinged with the lower end of the said ladder (2);
the ladder (2) is provided with a first position and a second position, when the ladder (2) is at the first position, the length direction of the ladder (2) is parallel to the extending direction of the electric pole (100), and when the ladder (2) is at the second position, the support rod (24) can support the lower end of the ladder (2), so that the length direction of the ladder (2) and the extending direction of the electric pole (100) form an included angle;
a locking device (14), said locking device (14) being capable of locking said ladder (2) to said ladder rack (1) or to said pole (100) when said ladder (2) is in said first position.
2. A pole switch maintenance ladder as claimed in claim 1, characterized in that the locking device (14) comprises a groove (1411) and a closing part (140), the groove (1411) being provided on the ladder frame (1) or the mast (100), the ladder (2) being provided with a fixing member (23), the closing part (140) being adapted to close the fixing member (23) in the groove (1411).
3. A mast switch maintenance ladder as claimed in claim 2, characterized in that the closing member (140) comprises a stop (1422) and at least one electromagnet (1423); the stop piece (1422) and the electromagnet (1423) are arranged on the opening side of the groove (1411), the electromagnet (1423) is used for adsorbing the stop piece (1422), and the stop piece (1422) is used for closing the fixing piece (23) in the groove (1411).
4. A pole switch maintenance ladder as claimed in claim 2, characterized in that the closing member (140) comprises a barrier (1412) and a lock (1413), two barriers (1412) are arranged in parallel outside the recess (1411), each barrier (1412) is provided with a locking hole, and the lock (1413) can cooperate with the locking holes to lock the fixing member (23) in the recess (1411).
5. A pole switch maintenance ladder as claimed in claim 1, characterized in that said ladder (2) comprises two long poles (21) and a plurality of foot pedals (22), said foot pedals (22) being arc-shaped poles adapted to said electric poles (100), said arc-shaped poles being fixed equidistantly between two of said long poles (21); the lower ends of the two long rods (21) are respectively hinged with the supporting rods (24).
6. The pole switch maintenance ladder as claimed in claim 1, wherein the ladder (2) comprises two first long poles (211), two second long poles (212) and a foot pedal (22), the foot pedal (22) is square, a plurality of the foot pedals (22) are arranged in parallel, the width direction of the foot pedal (22) is respectively provided with two short shafts, the two short shafts in the width direction of the foot pedal (22) and located at the front end are respectively hinged with the two first long poles (211), and the two short shafts in the width direction of the foot pedal (22) and located at the rear end are respectively hinged with the two second long poles (212); the supporting rod (24) is provided with two mounting holes (241), the distance between the centers of the two mounting holes (241) is the same as the distance between the centers of the two short shafts on the same side of the width direction of the pedal (22), one of the mounting holes (241) is rotatably connected with one of the short shafts, and the other mounting hole (241) is rotatably connected with the other short shaft.
7. A pole switch maintenance ladder as claimed in claim 5 or 6, characterized in that the ladder frame (1) is provided with fixing slots (13) corresponding to the support bars (24), the fixing slots (13) being used for fixing the other ends of the support bars (24).
8. The pole-mounted switch maintenance ladder of claim 1, characterized in that the ladder frame (1) is provided with two inclined planes (15) near the side of the electric pole (100), two of the inclined planes (15) form a V-shaped groove along the height direction of the ladder frame (1), the V-shaped groove is abutted against the electric pole (100), and the ladder frame (1) is fixedly connected with the electric pole (100) through a hoop (200).
9. The pole switch maintenance ladder as claimed in claim 8, characterized in that the ladder frame (1) is provided with an annular groove (151) on the side close to the mast (100) for engaging with the anchor ear (200); and second mounting grooves (152) are formed in two sides of the annular groove (151) in the vertical direction, the two second mounting grooves (152) are used for being matched with pressing sheets (153), and the pressing sheets (153) fix the hoop (200) in the annular groove (151).
10. A pole switch maintenance ladder as claimed in claim 5 or 6, characterized in that the ladder frame (1) and the ladder (2) are pasted with reflective paste, and a transparent rubber pad is arranged on the reflective paste surface of the foot pedal (22) at the position of the foot pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN203383720U (en) * | 2013-08-15 | 2014-01-08 | 天津市三源电力设备制造有限公司 | Folding ladder in buried prefabricated substation |
| CN205277288U (en) * | 2015-12-07 | 2016-06-01 | 江苏大全箱变科技有限公司 | Box -type substation is with foldable maintenance cat ladder |
| CN206545475U (en) * | 2017-03-10 | 2017-10-10 | 重庆水利电力职业技术学院 | A kind of Portable multifunctional insulating ladder |
| CN107701095A (en) * | 2017-09-22 | 2018-02-16 | 安徽柏桦电力科技有限公司 | A kind of annular concurrent of safety |
| CN209430109U (en) * | 2018-11-27 | 2019-09-24 | 国网辽宁省电力有限公司检修分公司 | A kind of transformer equipment component ladder preventing mistake scrambling device |
| CN110939379A (en) * | 2019-12-31 | 2020-03-31 | 唐山亚特专用汽车有限公司 | Folding crawling ladder of concrete mixing transport vehicle |
| CN210370471U (en) * | 2019-05-24 | 2020-04-21 | 南充八度阳光科技有限公司 | Electrician is with climbing frame |
| CN111058759A (en) * | 2019-11-15 | 2020-04-24 | 国家电投集团江西电力工程有限公司 | Boiler overhauls device suitable for thermal power station factory building |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203383720U (en) * | 2013-08-15 | 2014-01-08 | 天津市三源电力设备制造有限公司 | Folding ladder in buried prefabricated substation |
| CN205277288U (en) * | 2015-12-07 | 2016-06-01 | 江苏大全箱变科技有限公司 | Box -type substation is with foldable maintenance cat ladder |
| CN206545475U (en) * | 2017-03-10 | 2017-10-10 | 重庆水利电力职业技术学院 | A kind of Portable multifunctional insulating ladder |
| CN107701095A (en) * | 2017-09-22 | 2018-02-16 | 安徽柏桦电力科技有限公司 | A kind of annular concurrent of safety |
| CN209430109U (en) * | 2018-11-27 | 2019-09-24 | 国网辽宁省电力有限公司检修分公司 | A kind of transformer equipment component ladder preventing mistake scrambling device |
| CN210370471U (en) * | 2019-05-24 | 2020-04-21 | 南充八度阳光科技有限公司 | Electrician is with climbing frame |
| CN111058759A (en) * | 2019-11-15 | 2020-04-24 | 国家电投集团江西电力工程有限公司 | Boiler overhauls device suitable for thermal power station factory building |
| CN110939379A (en) * | 2019-12-31 | 2020-03-31 | 唐山亚特专用汽车有限公司 | Folding crawling ladder of concrete mixing transport vehicle |
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| CN111691811B (en) | 2022-05-27 |
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