WO2018064911A1

WO2018064911A1 - Pull-type safe ladder for high-voltage wire frame

Info

Publication number: WO2018064911A1
Application number: PCT/CN2017/094668
Authority: WO
Inventors: 王睿
Original assignee: 王睿
Priority date: 2016-10-08
Filing date: 2017-07-27
Publication date: 2018-04-12
Also published as: CN106223828B; CN106223828A

Abstract

A pull-type safe ladder for a high-voltage wire frame (1), comprising tread baffles (7), ladder cross rods (9), a baffle slide hole (10), tread cavities (11), a clamping block (25), a clamping block slide hole (26) and a control rod (27), wherein a ladder knob (5) controls up and down movement of the control rod (27), thereby controlling the clamping block (25) to slide between the clamping block slide hole (26) and a vertical hole so as to unlock or lock all of the tread cavities (11) and tread baffles (7).

Description

Pull-type high-voltage wire rack safety ladder

Technical field

The invention belongs to the technical field of high-voltage electric wire rack climbing ladder, and particularly relates to a pull-type high-voltage wire frame safety ladder.

Background technique

At present, the high-voltage wire rack is very high. When the maintenance personnel are required to be repaired or inspected on the high-voltage wire rack, the maintenance personnel climb the top of the ladder on the high-voltage wire rack for maintenance or inspection. Therefore, for high-voltage wire racks, ladders are necessary, which can not prevent non-professionals from causing serious high-pressure accidents by climbing ladders. How to design a ladder is not only convenient for professionals but also for non-professionals. It is of great design significance.

The invention designs a pull-type high-voltage wire rack safety ladder to solve the above problems.

Summary of the invention

In order to solve the above-mentioned drawbacks in the prior art, the present invention discloses a pull-type high-voltage wire frame safety ladder, which is realized by the following technical solutions.

The utility model relates to a pull-type high-voltage wire frame safety ladder, which is characterized in that it comprises a fixed ladder vertical pole, a fixed ladder crossbar, a ladder knob, a ladder vertical pole, a stepping baffle, a ladder crossbar, a baffle sliding hole, a stepping cavity, a pedal Limiting plate, resetting cavity, knob cavity, control lever chute, stepping cavity guide groove, return spring support plate, return spring, stepping cavity side card hole, stepping cavity guide block, baffle chute, baffle spring, baffle Guide block, block block, block slide hole, control rod and gear, wherein two fixed ladder cross bars are installed at equal intervals between two fixed ladder vertical bars, and two ladder vertical bars are respectively installed on two fixed ladder vertical bars On the lower side, a plurality of ladder rails are installed between the two ladder vertical poles, and one of the two ladder vertical rods has a control rod chute from top to bottom inside, and a lower side of the control rod chute is opened at the lower side. The knob cavity and the knob cavity are connected to the control rod chute, the ladder knob is installed in the knob cavity and is mounted on the ladder vertical rod, the gear is mounted on the ladder knob, the control rod is installed in the control rod chute and the gear and the lower end of the control rod are Tooth fit; several ladder rails A space is formed between the two adjacent ladder rails and the structure is exactly the same. For any space between two adjacent ladder rails, two ladder vertical bars are opened. The chamber is closed and communicated with the outside in one direction. The ladder vertical rod of the ladder with the control rod chute has a block sliding hole and the block sliding hole communicates with the control rod chute. The block is mounted on the control rod and the block edge is The vertical axis of the ladder slides in the sliding hole of the block, and two opposite stepped rails are symmetrically open with two treading groove guide grooves, and two stepping cavities are installed on the upper and lower sides of the treading cavity. Block, the stepping cavity is installed between two adjacent ladder rails by the cooperation of four stepping cavities and four stepping cavities, and the treading chamber can slide between two adjacent ladder rails, two resets The springs are respectively mounted on the two sides of the stepping cavity through two return spring support plates, and one end of the two return springs are respectively installed in the two reset chambers, and two baffle chutes are opened on the upper and lower sides of the treading cavity, and the pedals are stepped on. Two baffle guide blocks are mounted on the upper and lower ends of the baffle. The stepping baffle is installed in the treading cavity by the baffle guide block and the baffle chute, and can slide in the treading cavity, and the baffle spring is installed in the treading cavity The middle pedal is located between the side wall of the treading chamber and the stepping baffle, and the two pedal limiting plates are respectively mounted on the end faces of the upper and lower surfaces of the treading cavity, and the L-shaped stepping cavity side card hole is opened on one side of the treading cavity, L type The stepping hole side card hole has a vertical hole and a horizontal hole, the vertical hole and the block sliding hole opening position coincide, the stepping baffle side end has a baffle sliding hole, the baffle sliding hole and the horizontal hole opening position coincide, the block Sliding hole, stepping cavity side card hole, baffle sliding hole correspondingly, card Sliding block sliding on the card and the vertical bore hole.

In the present invention, a plurality of fixed ladder rails and a plurality of ladder rails are mentioned, wherein the number of rails depends on the length of the ladder or the fixed ladder, which is a conventional technique of those skilled in the art and does not affect the disclosure of the present invention. Integrity.

As a further improvement of the present technology, the above-mentioned fixed ladder vertical rod and the ladder vertical rod are all mounted on the high-voltage line cross rod through the support rod, and the high-voltage line cross rod is installed between the high-voltage line rack.

As a further improvement of the present technology, the above-mentioned return spring is a tension spring.

As a further improvement of the present technology, the above-mentioned flap spring is a compression spring.

As a further improvement of the present technology, the stepping groove guide groove is located at a middle position of the ladder crossbar and the two ends of the stepped cavity guide groove do not extend to both end faces of the ladder crossbar.

Compared with the conventional high-voltage electric wire frame ladder technology, the ladder knob of the present invention controls the up-and-down movement of the control rod through the meshing relationship between the gear and the control rod, thereby controlling the sliding of the card block between the sliding hole and the vertical hole of the block, for all Step on the cavity and step on the bezel to unlock or lock. When the block is located at the upper end of the block slide hole and the cross hole of the step hole side card hole, the block block is unlocked to the stepping cavity and the stepping baffle, and the stepping baffle can be restricted by the block block because of the baffle slide hole. Sliding in the treading cavity, the treading cavity can be slid between the ladder rails because of the cross hole without being restricted by the block. At this time, the person can use the foot to force the treading baffle to slide the baffle along the baffle chute. With the compression of the baffle spring, the stepping cavity moves along the treading cavity guide groove under the action of the baffle spring and the return spring. At this time, the stepping baffle, the treading cavity and the ladder crossbar form a space in which the foot can be stepped on, the maintenance personnel You can work on the high-voltage rack by stepping on the space and going up the ladder to the fixed ladder. When the block is located at the lower end of the block slide hole and the vertical hole of the step hole side card hole, the block block is stepped on the cavity The pedaling baffle is in a locked state, and the treading cavity is restricted by the lateral restriction of the vertical hole, and the pedaling baffle has no opening at the lower side of the baffle sliding hole, and the treading baffle itself is limited by the clamping block. At this time, the stepping baffle is flush with the stepping cavity and the ladder crossbar, so that the foot cannot be stepped on, thereby preventing the non-professional from reaching the high voltage wire rack through the ladder. The invention controls the sliding of the baffle by the knob, thereby controlling whether the ladder can work as a ladder. In the design, the frame of the ladder is designed to be fixed on the high-voltage frame, and the ladder itself does not move, but the function of the ladder reflected by the ladder is controlled by the knob. When the knob is closed, the ladder will not have the function of a ladder. When the knob is opened, the ladder will have the function of a ladder, which is convenient for the operator to operate the ladder flexibly, and has a good use effect.

DRAWINGS

Figure 1 is a schematic view of the overall component distribution.

Figure 2 is a schematic view of the installation of the ladder and the fixed ladder.

Figure 3 is a schematic view of the installation of the knob.

Figure 4 is a schematic view showing the internal structure of the ladder rail and the vertical rod.

Figure 5 is a schematic view showing the installation of the return spring and the stepping baffle.

Figure 6 is a schematic view of the installation of the baffle spring.

Figure 7 is a schematic view showing the structure of the stepping baffle.

Figure 8 is a schematic view of the cooperation of the slider hole and the block.

Figure 9 is a front view of the knob, gear and lever.

Figure 10 is a schematic view of the cooperation of the knob, the gear and the control rod.

Figure 11 is a schematic view of the block installation.

Fig. 12 is a schematic view showing the cooperation of the card block and the stepping cavity side card hole.

Figure 13 is a side elevational view of the structure within the adjacent ladder crossbar space.

The label names in the figure: 1, high-voltage wire rack, 2, fixed ladder vertical rod, 3, fixed ladder rail, 4, high-voltage line crossbar, 5, ladder knob, 6, ladder vertical rod, 7, stepping on the baffle, 8, branch Rod, 9, ladder crossbar, 10, baffle slide hole, 11, stepping cavity, 12, pedal limit plate, 13, reset cavity, 14, knob cavity, 15, control rod chute, 16, stepped cavity guide groove 17, return spring support plate, 18, return spring, 19, stepping cavity side card hole, 21, stepping cavity guide block, 22, baffle chute, 23, baffle spring, 24, baffle guide block, 25, Block, 26, block slide, 27, lever, 28, gear.

detailed description

As shown in Fig. 1 and 2, it comprises a fixed ladder vertical pole, a fixed ladder crossbar, a ladder knob, a ladder vertical pole, a stepping baffle, a ladder crossbar, a baffle slide hole, a stepping cavity, a pedal limit plate, a reset cavity , knob cavity, control rod chute, stepping groove guide groove, return spring support plate, return spring, stepping cavity side card hole, stepping cavity guide block, baffle chute, baffle spring, baffle guide block, block, Block slide hole, control rod, gear, wherein as shown in FIG. 2, two fixed ladder rails are installed at equal intervals between the two fixed ladder vertical rods, and two ladder vertical rods are respectively installed on two fixed ladder vertical rods On the lower side, a plurality of ladder rails are installed between the two ladder vertical bars. As shown in Figs. 3 and 4, one of the two ladder vertical bars has a control rod chute from top to bottom. The lower end of the control rod chute has a knob cavity on the side and the knob cavity is connected with the control rod chute. The ladder knob is installed in the knob cavity and mounted on the ladder vertical rod, and the gear is mounted on the ladder knob, as shown in FIG. Installed in the control rod chute and the gears cooperate with the teeth at the lower end of the control rod; And 3, a number of spaces are formed between the plurality of ladder rails, and the structure is installed and has the same structure in the space between the adjacent two ladder rails, and the space between any two adjacent ladder rails As shown in FIG. 4, the two vertical ladders of the ladder have a reset cavity and communicate with the outside in one direction, and the slide vertical rod of the ladder with the control rod chute is opened with the block slide hole and the block slide hole and the control The rod chutes are connected, as shown in Figs. 11 and 8, the block is mounted on the control rod and the block slides in the block sliding hole along the vertical column of the ladder, as shown in Fig. 4, two adjacent ladder rails There are two treading cavity guide grooves symmetrically on the opposite faces. As shown in Fig. 5, two treading cavity guide blocks are installed on the upper and lower sides of the treading cavity, and the treading cavity passes through four treading cavity guide blocks and four pedaling steps. The cooperation of the cavity guide groove is installed between two adjacent ladder cross bars, and the treading cavity can slide between two adjacent ladder cross bars. As shown in FIG. 5, the two return springs respectively pass through two return spring support plates. Installed on both sides of the stepping cavity, as shown in Figure 13, two return spring ends Installed in two reset chambers respectively, as shown in Figure 5, there are two baffle chutes on the upper and lower sides of the stepping cavity. As shown in Figure 7, two blocks are installed on the upper and lower ends of the stepping baffle. The plate guide block and the stepping baffle are installed in the stepping cavity through the cooperation of the baffle guide block and the baffle chute, and can slide in the treading cavity. As shown in FIG. 5, the baffle spring is installed in the treading cavity and is located in the treading cavity. Between the side wall and the stepping baffle, as shown in Figures 3 and 12, the two pedal limiting plates are respectively mounted on the end faces of the upper and lower surfaces of the treading chamber, as shown in Figs. 5 and 6, the treading chamber is opened on one side. The L-type stepping cavity side card hole, the L-shaped stepping cavity side card hole has a vertical hole and a horizontal hole, and the vertical hole and the block sliding hole opening position coincide, as shown in Fig. 7, the stepping baffle side end is opened with a baffle The sliding hole, the baffle sliding hole and the horizontal hole opening position coincide, as shown in FIG. 4, the block sliding hole, the stepping cavity side card hole, the baffle sliding hole correspondingly, the block sliding in the block sliding hole and the vertical hole in.

As shown in Figure 1, the fixed ladder vertical pole and the ladder vertical pole are all mounted on the high-voltage line crossbar through the pole. The high voltage wire crossbar is installed between the high voltage wire racks.

The return spring is a tension spring.

The baffle spring is a compression spring.

As shown in FIG. 4, the stepping groove guide groove is located at a middle position of the ladder crossbar and the two ends of the stepped cavity guide groove do not extend to both end faces of the ladder crossbar.

In summary, in the present invention, the ladder knob controls the up and down movement of the control rod through the meshing relationship between the gear and the control rod, thereby controlling the sliding of the card block between the slider sliding hole and the vertical hole, and all the treading cavities and the treading block. The board is unlocked or locked. When the block is located at the upper end of the block slide hole and the cross hole of the step hole side card hole, the block block is unlocked to the stepping cavity and the stepping baffle, and the stepping baffle can be restricted by the block block because of the baffle slide hole. Sliding in the treading cavity, the treading cavity can be slid between the ladder rails because of the cross hole without being restricted by the block. At this time, the person can use the foot to force the treading baffle to slide the baffle along the baffle chute. With the compression of the baffle spring, the stepping cavity moves along the treading cavity guide groove under the action of the baffle spring and the return spring. At this time, the stepping baffle, the treading cavity and the ladder crossbar form a space in which the foot can be stepped on, the maintenance personnel You can work on the high-voltage rack by stepping on the space and going up the ladder to the fixed ladder. When the block is located at the lower end of the block slide hole and the vertical hole of the step hole side card hole, the block block is locked to the stepping cavity and the stepping baffle, and the stepping cavity moves due to the lateral restriction of the vertical hole and is subjected to the block. Restriction, the stepping baffle has no opening on the lower side of the baffle sliding hole, and the treading baffle itself is limited by the clamping block; at this time, the stepping baffle is flush with the treading cavity and the ladder crossbar, so that the foot cannot be stepped on, thereby preventing Non-professionals climbed the ladder to the high-voltage line frame. The invention controls the sliding of the baffle by the knob, thereby controlling whether the ladder can work as a ladder. In the design, the frame of the ladder is designed to be fixed on the high-voltage frame, and the ladder itself does not move, but the function of the ladder reflected by the ladder is controlled by the knob. When the knob is closed, the ladder will not have the function of a ladder. When the knob is opened, the ladder will have the function of a ladder, which is convenient for the operator to operate the ladder flexibly, and has a good use effect.

Claims

The utility model relates to a pull-type high-voltage wire frame safety ladder, which is characterized in that it comprises a fixed ladder vertical pole, a fixed ladder crossbar, a ladder knob, a ladder vertical pole, a stepping baffle, a ladder crossbar, a baffle sliding hole, a stepping cavity, a pedal Limiting plate, resetting cavity, knob cavity, control lever chute, stepping cavity guide groove, return spring support plate, return spring, stepping cavity side card hole, stepping cavity guide block, baffle chute, baffle spring, baffle Guide block, block block, block slide hole, control rod and gear, wherein two fixed ladder cross bars are installed at equal intervals between two fixed ladder vertical bars, and two ladder vertical bars are respectively installed on two fixed ladder vertical bars On the lower side, a plurality of ladder rails are installed between the two ladder vertical poles, and one of the two ladder vertical rods has a control rod chute from top to bottom inside, and a lower side of the control rod chute is opened at the lower side. The knob cavity and the knob cavity are connected to the control rod chute, the ladder knob is installed in the knob cavity and is mounted on the ladder vertical rod, the gear is mounted on the ladder knob, the control rod is installed in the control rod chute and the gear and the lower end of the control rod are Tooth fit; several ladder rails A space is formed between the two adjacent ladder rails and the structure is exactly the same. For any space between two adjacent ladder rails, two ladder vertical bars are opened. The chamber is closed and communicated with the outside in one direction. The ladder vertical rod of the ladder with the control rod chute has a block sliding hole and the block sliding hole communicates with the control rod chute. The block is mounted on the control rod and the block edge is The vertical axis of the ladder slides in the sliding hole of the block, and two opposite stepped rails are symmetrically open with two treading groove guide grooves, and two treading cavities are installed on the upper and lower sides of the treading cavity. The stepping cavity is installed between two adjacent ladder rails by the cooperation of four stepping cavities and four stepping cavities, and the treading chamber can slide between two adjacent ladder rails, two return springs The two return spring support plates are respectively mounted on the two sides of the stepping cavity, and one end of the two return springs are respectively installed in the two reset chambers, and two baffle chutes are opened on the upper and lower sides of the stepping cavity, and the stepping block is Both ends of the board are installed a baffle guide block, the stepping baffle is installed in the stepping cavity by the cooperation of the baffle guide block and the baffle chute, and can slide in the treading cavity, the baffle spring is installed in the treading cavity and is located on the side wall of the treading cavity and stepped on Between the baffles, two pedal limiting plates are respectively mounted on the end faces of the upper and lower surfaces of the stepping cavity, and an L-shaped stepping cavity side card hole is opened on one side of the treading cavity, and the L-shaped treading cavity side card hole has a vertical hole and The horizontal hole and the vertical hole are coincident with the opening position of the sliding hole of the block block, and the side end of the stepping baffle is provided with a baffle sliding hole, and the position of the baffle sliding hole and the horizontal hole opening hole coincides, the sliding block sliding hole, the stepping cavity side card hole, The sliding holes of the baffle are sequentially corresponding, and the block slides in the sliding holes and the vertical holes of the block.
The pull-type high-voltage wire frame safety ladder according to claim 1, wherein the fixed ladder vertical rod and the ladder vertical rod are respectively mounted on the high-voltage line cross rod through the support rod, and the high-voltage line cross rod is installed between the high-voltage line racks. .
A pull-type high-voltage wire frame safety ladder according to claim 1, characterized in that: The return spring is a tension spring.
A pull-type high-voltage wire frame safety ladder according to claim 1, wherein said baffle spring is a compression spring.
A pull-type high-voltage wire frame safety ladder according to claim 1, wherein the stepping-cavity guide groove is located at a middle position of the ladder cross-bar and the two ends of the step-chamber rail groove do not extend to both end faces of the ladder cross-bar.