CN206429182U - A kind of hot line maintenance folding ladder - Google Patents

Abstract

The utility model provides a folding ladder for live work on transmission lines, which includes a horizontal ladder, a vertical ladder and a hook assembly. The horizontal ladder is connected to one end of the vertical ladder through a connecting device at its end. When in use, the horizontal ladder It is folded into a 90-degree angle with the vertical ladder, and the other end of the vertical ladder is connected to the hook assembly; the horizontal ladder includes several horizontal ladder units, and the horizontal ladder units are connected by a connecting piece. The ladder includes several vertical ladder units, which are connected by two connecting pieces.

Description

Folding ladder for live working on transmission lines

technical field

The utility model relates to a folding ladder for live work of transmission lines, which belongs to the technical field of line construction and maintenance in electric power systems.

Background technique

After the transmission line has been running under load for a period of time, various defects often appear. In order to ensure the continuous power supply of users, they often do not shut down for maintenance, especially for 220kV and above transmission lines, it is even more impossible to shut down the power at will. . In order to eliminate line defects in time and ensure the healthy and stable operation of transmission lines, live work must be considered to deal with defects.

Live working tools for conventional transmission lines are relatively mature, but live working tools for compact transmission lines are relatively scarce. Using conventional tools to enter and exit compact transmission lines will not be able to meet the important technical indicators of the combination clearance stipulated by safety regulations.

Traditional hard ladders cannot be folded, and operators can only enter and exit the electric field along a straight line. For compact transmission lines, entering and exiting the electric field in this way cannot meet the requirements of the combined gap. The utility model can be folded, and the length of the ladder can be adjusted according to the structures of different pole towers, and the electric field can be entered and exited in different ways, which can satisfy the requirement of the combination gap to the greatest extent.

Utility model content

In order to solve the above-mentioned defects and deficiencies in the prior art, the utility model provides a folding ladder for live work on transmission lines. Personnel enter the electric field in different ways.

In order to solve the above technical problems, the utility model provides a folding ladder for live work on transmission lines, including a horizontal ladder, a vertical ladder and a hook assembly. The horizontal ladder is connected to one end of the vertical ladder through a connecting device at its end. , the horizontal ladder and the vertical ladder are folded into an angle of 90 degrees, and the other end of the vertical ladder is connected to the hook assembly; the horizontal ladder includes several horizontal ladder units, and the horizontal ladder units are One is connected, the vertical ladder includes several vertical ladder units, and the vertical ladder units are connected through the second connecting piece.

Further, the connecting device includes an integrally formed connecting head 1, a transition section and connecting head 2, the connecting head 1 is connected to the connecting nut at the end of the horizontal ladder through an external thread at one end, and one end of the connecting head 2 The part is hinged at one side edge of the end of the vertical ladder; the other end of the connector 1 is connected to the other end of the connector 2 through a transition section, and the connector 1 and the connector 2 are arranged in parallel, It is connected at an angle with the transition section.

Further, the first connecting piece includes a connecting block and a connecting plate, and the connecting block is connected with the supporting columns of the horizontal ladder unit through fixing bolts, and the connecting plates are two pieces, relatively fixed on the two side edges of the connecting block The distance between the two connecting plates matches the size of the connecting head three arranged at the end of the support column of the horizontal ladder unit, and the connecting plate and the connecting head three are connected by fixing bolts.

Further, the second connecting piece includes a groove arranged at the end of the middle column of the vertical ladder unit and a protrusion arranged at the end of the middle column of another vertical ladder unit, and the two vertical ladder units are matched by the groove and the protrusion, And connect with fixing bolts.

Further, the hook assembly includes a connector four, a hook and a pulley, the hook is fixed at the end of the vertical ladder through the connector four, and the pulley is set in the hook through a rotating shaft.

Further, the free end of the hook is provided with a baffle, and the connection end is provided with a gusset, and the baffle is hinged to the free end of the hook.

Further, the hook assembly also includes a spare connecting piece, the spare connecting piece includes a connecting head five arranged on the four side walls of the connecting head, the connecting head five is connected with the buckle plate through a connecting rod, and the connecting rod includes a The shaft is perpendicular to the rod one and the rod two used to connect the rod one and the connecting head five, and the rod two and the rod one are arranged at an angle.

Further, the horizontal ladder unit includes support columns arranged in parallel and cross bars connecting the support columns.

Further, the vertical ladder unit includes an intermediate column and climbing rods arranged on both sides of the intermediate column, and the ends of the climbing rods pass through the intermediate column.

Further, the end of the climbing pole is provided with a non-slip rubber sleeve.

Beneficial technical effects achieved by the utility model: the utility model provides a folding ladder for live work on transmission lines. The way to enter the electric field can meet the requirements of the combination gap to the greatest extent, especially for compact transmission lines.

Description of drawings

Fig. 1 structural representation of the utility model;

Figure 2 is a schematic diagram of a right view of the utility model;

Fig. 3 is a structural schematic diagram of the connection device of the present utility model;

Fig. 4 is a structural schematic diagram of a connector of the present utility model;

Fig. 5 is a schematic diagram of the structure of the second connector of the utility model;

Fig. 6 is a structural schematic diagram of the hook assembly in the figure of the utility model.

Among them: 1 horizontal ladder; 2 vertical ladder; 3 hook assembly; 4 connecting device; 11 connecting block; 12 connecting plate; 13 fixing bolt; 21 groove; Rotating shaft; 35 baffle plate; 36 buckle plate; 37 connector five; 38 rod one; 39 rod two; 41 connector one; 42 transition section; 43 connector two; 44 connection nut.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solutions of the present invention more clearly, but not to limit the protection scope of the present invention.

As shown in Figures 1-6, the utility model provides a folding ladder for live work on transmission lines, including a horizontal ladder 1, a vertical ladder 2 and a hook assembly 3. The horizontal ladder 1 is connected to the One end of the vertical ladder 2 is connected. When in use, the horizontal ladder 1 and the vertical ladder 2 are folded into an angle of 90 degrees, and the other end of the vertical ladder 2 is connected with the hook assembly 3; the horizontal ladder 1 includes several The horizontal ladder unit is connected by connecting piece 1, and the vertical ladder 2 includes several vertical ladder units, and the vertical ladder unit is connected by connecting piece 2. When working, first hang the folding ladder on the middle-phase wire, then push the hook to a suitable position, and at the same time, form a 90-degree angle between the horizontal ladder and the vertical ladder, and fix the end of the horizontal ladder on the pole tower. Operators first move along the horizontal ladder to the vertical ladder, and then enter the electric field to work through the vertical ladder, so as to meet the needs of operators to enter the electric field in different ways. In addition, the length of the horizontal ladder and the vertical ladder of the folding ladder can be adjusted according to actual needs, and the use is convenient.

The connecting device includes an integrally formed connector one 41, a transition section 42 and a connector two 43, the connector one 41 is connected to the connecting nut 44 at the end of the horizontal ladder through an external thread at one end, and the connector One end of two 43 is hinged at one side edge place of described vertical ladder 2 ends; The first 41 and the second connector 43 are arranged in parallel, and connected with the transition section 42 at an included angle.

The first connecting piece includes a connecting block 11 and a connecting plate 12, the connecting block 11 is connected with the support column of the horizontal ladder unit through a fixing bolt 13, and the connecting plate 12 is two pieces, relatively fixed on the connecting block 11 on both sides of the edge, the distance between the two connecting plates 12 matches the size of the connecting head 3 arranged at the end of the support column of the horizontal ladder unit, and the connecting plate 12 and the connecting head 3 are connected by fixing bolts.

The second connector includes a groove 21 arranged at the end of the middle column of the vertical ladder unit and a protrusion 22 arranged at the end of the middle column of another vertical ladder unit. The two vertical ladder units are connected through the groove 21 and the protrusion 22. Fit and connect with fixing bolts.

Described hook assembly 3 comprises connector four 31, hook 32 and pulley 33, and described hook 32 is fixed on the end of described vertical ladder 2 by connector four 31, and described pulley 33 is arranged in described hook 32 by rotating shaft 34 ;, the free end of the hook 32 is provided with a baffle 35, and the connection end is provided with a buckle 36, and the baffle 35 is hinged on the free end of the hook 32; the hook assembly 3 also includes a spare connector, so Said spare connector includes connector five 37 arranged on the side wall of connector four 31, said connector five 37 is connected to pinch plate 36 through a connecting rod, and said connecting rod includes a rod one 38 perpendicular to the rotating shaft and a connecting rod One 38 and the second rod 39 of the connecting head five 37, the second rod 39 and the first rod 38 are arranged at an angle.

Wherein, the structure of the horizontal ladder 1 and the vertical ladder 2 is different, the horizontal ladder unit includes support columns arranged in parallel and cross bars connecting the support columns, and the vertical ladder unit includes the middle column and the Climbing rods on both sides, this design can reduce the overall weight of the ladder, the end of the climbing rod passes through the middle column, and the passed part can be used as a handrail when the operator climbs the ladder, and the end of the climbing rod is provided with Non-slip rubber cover.

The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, some improvements and modifications can also be made. It should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of hot line maintenance folding ladder, it is characterised in that：Including horizontal ladder, vertical ladder and hanging hook assembly, institute Horizontal ladder is stated by the attachment means of its end with described vertical terraced one end to be connected, in use, the horizontal ladder with it is described vertical Ladder is folded into an angle of 90 degrees, and the vertical terraced other end is connected with the hanging hook assembly；The horizontal ladder includes several levels Terraced unit, the horizontal ladder unit is connected by connector one, and the vertical ladder includes several vertical terraced units, described vertical Terraced unit is connected by connector two.

2. hot line maintenance folding ladder according to claim 1, it is characterised in that：The attachment means include Integrally formed connector one, changeover portion and connector two, external screw thread and horizontal ladder end of the connector one by one end The coupling nut in portion is connected, and the one end of the connector two is hinged on the side edge of the vertical terraced end；The company The other end of joint one is connected with the other end of the connector two by changeover portion, and the connector one and connector two are flat Row is set, and is connected with changeover portion into angle.

3. hot line maintenance folding ladder according to claim 1, it is characterised in that：The connector one includes Contiguous block and connecting plate, the contiguous block are connected by fixing bolt with the support column of the horizontal ladder unit, the connecting plate For 2 pieces, it is relatively fixed at the contiguous block both sides of the edge, the spacing of 2 pieces of connecting plates is with being arranged on horizontal ladder unit branch The matching size of the connector three of dagger end, and connecting plate is connected with the connector three by fixing bolt.

4. hot line maintenance folding ladder according to claim 1, it is characterised in that：The connector two includes It is arranged on the groove of column end and the projection for being arranged on column end in the middle of another vertical terraced unit, 2 in the middle of vertical terraced unit Vertical ladder unit is engaged by groove and projection, and is connected with fixing bolt.

5. hot line maintenance folding ladder according to claim 1, it is characterised in that：The hanging hook assembly includes Connector four, hook and pulley, the hook are fixed on the vertical terraced end by connector four, and the pulley passes through rotating shaft It is arranged in the hook.

6. hot line maintenance folding ladder according to claim 5, it is characterised in that：The free end of the hook Provided with baffle plate, connection end is provided with buckle, and the panel hinge is in the free end of the hook.

7. hot line maintenance folding ladder according to claim 5, it is characterised in that：The hanging hook assembly is also wrapped Standby connector is included, the standby connector includes the connector five being arranged on the side wall of connector four, and the connector five leads to Cross connecting rod with buckle to be connected, the connecting rod is including the bar one vertical with rotating shaft and for connecting rod one and the bar of connector five Two, the bar two is set with the bar one into angle.

8. the hot line maintenance folding ladder according to claim any one of 1-7, it is characterised in that：The level Terraced unit includes the cross bar of the support column be arrangeding in parallel and connection support column.

9. the hot line maintenance folding ladder according to claim any one of 1-7, it is characterised in that：It is described vertical Terraced unit includes intermediolateral column and is arranged on the pole-climbing of intermediolateral column both sides, and the end of the pole-climbing passes through intermediolateral column.

10. hot line maintenance folding ladder according to claim 9, it is characterised in that：The end of the pole-climbing Provided with anti-slip rubber set.