CN213234901U

CN213234901U - Platform joint ladder

Info

Publication number: CN213234901U
Application number: CN202021193198.7U
Authority: CN
Inventors: 胡洋铭; 胡应豪; 林莉娜; 胡连华; 李余胜
Original assignee: Zhejiang Youmay Industry Co ltd
Current assignee: Zhejiang Youmay Industry Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-05-18
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to the field of climbing tools and discloses a platform joint ladder, which comprises a front ladder frame and a rear ladder frame, wherein the tops of the front ladder frame and the rear ladder frame are hinged with each other; preceding ladder frame and back ladder frame all include the ladder pipe of two parallels, the ladder pipe all includes a plurality of subsection, articulates between the adjacent subsection. The utility model discloses need to set up the bearing platform and lead to using inconvenient problem when can solving current joint ladder and use.

Description

Platform joint ladder

Technical Field

The utility model relates to an instrument technical field of ascending a height especially relates to platform joint ladder.

Background

A joint folding ladder (simply referred to as a joint ladder) is a folding ladder formed by combining a plurality of joints, and is generally used when electric power facility equipment is maintained or installed.

When the joint ladder is used as a platform, a floor made of iron plates or other materials is additionally used as a bearing platform to be carried on the ladder, so that the joint ladder is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a platform joint ladder to need to set up the bearing platform when solving current joint ladder and lead to using inconvenient problem.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the platform joint ladder comprises a front ladder frame and a rear ladder frame, wherein the tops of the front ladder frame and the rear ladder frame are hinged with each other; preceding ladder frame and back ladder frame all include the ladder pipe of two parallels, the ladder pipe all includes a plurality of subsection, articulates between the adjacent subsection.

Further, even there is the bracing piece that is used for supporting platform between two ladder pipes of back ladder frame, just the bottom of platform is equipped with the recess that can block with the bracing piece.

Further, the number of the sections of the ladder tube is two.

Further, be fixed with three between two ladder pipes of preceding ladder frame and step on the pipe, it is three step on the pipe all sets up on the section of ladder pipe bottom near preceding ladder frame, the platform is located the section that is close to ladder pipe top.

Furthermore, a fixing rod is connected between the two ladder tubes of the rear ladder frame and arranged on a section close to the bottoms of the ladder tubes.

Furthermore, a U-shaped safety protection pipe is connected between the tops of the two ladder pipes of the front ladder frame.

Furthermore, the bottoms of two ladder pipes in preceding ladder frame and the back ladder frame all are the splayed and distribute.

Further, adjacent segments are connected by joints, and the joints can limit the angle between the adjacent segments.

Further, the joint comprises a left outer sheet, a left inner sheet, a right outer sheet, a right inner sheet, a shifting sheet, a trigger, a sliding fixture block, a reset spring and a compression spring, the left outer sheet, the left inner sheet, the shifting sheet, the right inner sheet and the right outer sheet are connected through rivets, a plurality of clamping grooves are correspondingly arranged on the outer circumferences of the left inner sheet and the right inner sheet, guide grooves are correspondingly arranged on the left outer sheet and the right outer sheet, two ends of the sliding fixture block are correspondingly arranged in the guide grooves on the left outer sheet and the right outer sheet, the sliding fixture block can be matched with each clamping groove, the compression spring is sleeved on a positioning rod of the sliding fixture block, the left outer sheet and the right outer sheet are provided with guide sheets, the positioning rod is arranged in positioning holes of the guide sheets in a penetrating manner, the trigger is hinged on the left outer sheet and the right outer sheet through semi-hollow rivets, the head of the trigger can push the sliding fixture block to be in and out of engagement with the, the return spring is arranged between the spring joint of the left inner sheet and the right inner sheet and the protrusion, and the front end of the protrusion is higher than the outer circumferences of the left inner sheet and the right inner sheet.

Furthermore, a protective cover is arranged outside the joint, and a base used for supporting the joint is arranged outside the protective cover.

The utility model has the advantages that:

when the ladder needs to be used, the front ladder frame and the rear ladder frame are pulled open by hands, the platform is driven to rotate to be in a horizontal state through the connecting rod, the free end of the platform is clamped on the supporting rod downwards, the supporting rod stably supports the platform, and the platform is in the horizontal state and can be loaded. Therefore, when the ladder is used, the ladder can be used immediately without additionally erecting a bearing platform, and the ladder is more convenient to use.

When the ladder needs to be folded, the free end of the platform is held by a hand to be pulled upwards, and the platform drives the rear ladder frame to be folded through the connecting rod. Then preceding ladder frame and back ladder frame rotate around the joint respectively, can realize the folding of preceding ladder frame and back ladder frame, and folding back whole ladder occupation space is little, does benefit to and deposits.

Drawings

Fig. 1 is a schematic structural view of a ladder in an expanded state according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a ladder in a folded unfolded state according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a ladder in a folded and folded state according to an embodiment of the present invention;

FIG. 4 is a schematic representation of the structure of the joint of FIGS. 1-3;

FIG. 5 is a first internal block diagram of the joint of FIG. 4;

FIG. 6 is a second internal view of the joint of FIG. 4;

FIG. 7 is a third internal block diagram of the joint of FIG. 4;

fig. 8 is a schematic structural view of a second embodiment of the present invention in an expanded state;

fig. 9 is a schematic structural view of a second embodiment of the present invention, wherein the ladder is folded and collapsed.

The anti-skidding foot guard comprises a front ladder frame 1, a rear ladder frame 2, a joint 3, a pedal pipe 4, reinforcing ribs 5, an anti-skidding foot guard 6, a fixed rod 7, a connecting rod 8, a safety protection pipe 9, a platform 10, a left outer sheet 11, a right outer sheet 12, a left inner sheet 13, a right inner sheet 14, a trigger 15, a semi-hollow rivet 16, a shifting sheet 17, a protrusion 170, a clamping groove 18, a guide sheet 19, a compression spring 20, a sliding clamping block 21, a reset spring 22, a base 23 and a protective cover 24.

Detailed Description

The following description is given by way of specific embodiments, and those skilled in the art will appreciate the advantages and effects of the present invention from the disclosure provided in the present specification. It should be noted that the drawings provided in the following embodiments are only for illustrative purposes, and are only schematic drawings rather than actual drawings, which should not be construed as limiting the invention, and in order to better illustrate the embodiments of the invention, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for convenience of description and simplification of description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, therefore the terms describing the position relationship in the drawings are used only for exemplary illustration, and not for limiting the present invention, and those skilled in the art can understand the specific meaning according to the specific situation.

Example one

As shown in fig. 1-3, the platform joint ladder of the present invention comprises a front ladder frame 1 and a rear ladder frame 2 hinged to each other at the top, wherein the front ladder frame 1 and the rear ladder frame 2 both comprise two parallel ladder tubes, and the two ladder tubes of the front ladder frame 1 and the two ladder tubes of the rear ladder frame 2 are hinged to each other at the top by rivets.

The ladder tube is formed by connecting a plurality of sections, and adjacent sections are hinged through joints 3.

Be fixed with three between two ladder pipes of preceding ladder frame 1 and step on pipe 4, three step on pipe 4 all sets up in the ladder pipe of preceding ladder frame 1 on being close to the segmentation of bottom, and the three of preceding ladder frame 1 steps on pipe 4 and all is located the below of joint 3 promptly. Two fixed rods 7 are fixed between two ladder tubes of the rear ladder frame 2, the two fixed rods 7 are arranged on the sections close to the bottom in the ladder tubes of the rear ladder frame 2, and the two fixed rods 7 of the rear ladder frame 2 are also arranged below the joint 3. And step on between pipe 4 and the ladder pipe, all link between dead lever 7 and the ladder pipe has strengthening rib 5 for the reinforcing steps on the connection stability of pipe 4 and dead lever 7.

A platform 10 is connected between the front ladder frame 1 and the rear ladder frame 2, and the platform 10 is positioned on a section close to the top in the ladder tube. The mounting structure of the platform 10 is specifically: one end of the platform 10 close to the front ladder frame 1 is provided with a supporting shaft in a penetrating way, the two ends of the supporting shaft are respectively fixed on two ladder tubes of the front ladder frame 1, the platform 10 can rotate around the supporting shaft, and one end of the platform 10 close to the rear ladder frame 2 is a free end. Articulated respectively between two side middle parts of platform 10 and the inside wall of two terraced pipes of back terraced frame 2 have connecting rod 8, is fixed with the bracing piece that is used for supporting platform 10 between two terraced pipes of back terraced frame 2, and the bottom of platform 10 free end be equipped with can with the recess of bracing piece block, take on the bracing piece on back terraced frame 2 through the recess of platform 10 free end, can realize fixing of platform 10.

In order to increase the anti-skid performance of the pedal pipe 4, anti-skid lines are arranged on the pedal pipe 4. In order to increase the anti-skid performance of the bottom of the ladder tube, anti-skid foot sleeves 6 are sleeved on the bottom of the ladder tube, the bottoms of the anti-skid foot sleeves 6 are arc-shaped, and anti-skid protrusions are arranged on the bottoms of the anti-skid foot sleeves 6.

In order to increase the safety of workers when the workers stand on the platform 10 for work, a U-shaped safety protection pipe 9 is connected between the tops of the two ladder pipes of the front ladder frame 1, and when the workers stand on the platform 10, the U-shaped safety protection pipe 9 can surround the legs of the workers to realize safety protection.

The bottoms of two ladder pipes in preceding ladder frame 1 and back ladder frame 2 all are the splayed and distribute, can play the effect of balanced ladder.

The structure of the joint 3 is shown in fig. 4-7, the joint 3 comprises a left outer plate 11, a left inner plate 13, a right outer plate 12, a right inner plate 14, a shifting plate 17, a trigger 15, a sliding fixture block 21, a return spring 22 and a compression spring 20, the left outer plate 11, the left inner plate 13, the shifting plate 17, the right inner plate 14 and the right outer plate 12 are connected through a half hollow rivet 16, three clamping grooves 18 are correspondingly arranged on the outer circumferences of the left inner plate 13 and the right inner plate 14, guide grooves are correspondingly arranged on the left outer plate 11 and the right outer plate 12, two ends of the sliding fixture block 21 are correspondingly arranged in the guide grooves on the left outer plate 11 and the right outer plate 12, the sliding fixture block 21 can be matched with each clamping groove 18, the compression spring 20 is sleeved on a positioning rod of the sliding fixture block 21, a trigger 19 is arranged on the left outer plate 11 and the right outer plate 12, the positioning rod is arranged in a positioning hole of the guide plate 19, and the trigger 15 is hinged on the left outer plate 11 and the right, the head of the trigger 15 can push the sliding block 21 to be separated from and combined with the slot 18, the plectrum 17 is provided with three protrusions 170 corresponding to the slot 18, the return spring 22 is arranged between the spring joint of the left inner sheet 13 and the right inner sheet 14 and the first protrusion 170, the front end of the protrusion 170 is higher than the outer circumference of the left inner sheet 13 and the right inner sheet 14, and the rear end of the protrusion 170 is provided with an arc angle.

When the trigger 15 is pulled by external force to move the sliding fixture block 21 outwards to exit from the clamping grooves 18 of the left inner sheet 13 and the right inner sheet 14, the shifting sheet 17 loses the blocking effect of the trigger 15 and rotates under the action of the return spring 22, the protrusion 170 on the shifting sheet 17 blocks the clamping grooves 18 of the left inner sheet 13 and the right inner sheet 14, and the sliding fixture block 21 cannot enter the clamping grooves 18 of the left inner sheet 13 and the right inner sheet 14 again when losing external force, so that the left outer sheet 11 and the right outer sheet 12 can rotate relative to the left inner sheet 13 and the right inner sheet 14 by taking the semi-hollow rivet 16 as a circle center, and the ladder has the opening or folding function. When the joint 3 rotates to the second and third slots 18 of the left inner sheet 13 and the right inner sheet 14, the sliding fixture block 21 can cross the arc angle of the shifting sheet 17 due to the arc angle of the shifting sheet 17, so that continuous rotation is realized.

When the joint 3 needs to be opened, the left outer plate 11 and the right outer plate 12 of the joint 3 rotate relative to the left inner plate 13 and the right inner plate 14, the sliding fixture block 21 touches the front end of the protrusion 170 of the shifting piece 17, because the front end of the protrusion 170 is higher than the outer circumferences of the left inner plate 13 and the right inner plate 14, the sliding fixture block 21 drives the shifting piece 17 to rotate, and when the protrusion of the shifting piece 17 is left out of the clamping groove 18, the sliding fixture block 21 is buckled into the clamping groove 18 under the action of the compression spring, so that the joint 3 is locked again.

The utility model discloses a use method as follows:

when the ladder is not in use, it is normally in a collapsed position and the ladder tubes are in a collapsed position (as shown in figure 3) to facilitate storage of the ladder.

When the ladder is needed to be used, all the sections of the ladder tubes are firstly opened, so that all the sections of the ladder tubes are changed from the folded state to the opened state, namely all the sections of the ladder tubes are in the same straight line. Then pull open preceding ladder frame 1 and back ladder frame 2 with the hand, drive platform 10 rotation through connecting rod 8 and be the horizontality to the free end of platform 10 blocks downwards on the bracing piece, and the bracing piece carries out the outrigger to platform 10.

When the ladder needs to be folded, the free end of the platform 10 is held by a hand and pulled upwards, and the platform 10 drives the rear ladder frame 2 to be folded through the connecting rod 8. Then preceding ladder frame 1 and back ladder frame 2 rotate around joint 3 respectively, can realize preceding ladder frame 1 and back ladder frame 2's folding, and the volume of whole ladder diminishes, is convenient for accomodating of ladder and deposits.

Example two

The difference between this embodiment and the first embodiment is: as shown in fig. 8 and 9, in the present embodiment, a protective cover 24 and a base 23 are provided at the joint 3, the protective cover 24 includes a left protective sheet and a right protective sheet, the left protective sheet is located outside the left outer sheet 11, the right protective sheet is located outside the right outer sheet 12, and the left protective sheet and the right protective sheet are mounted on the half hollow rivet 16. The base 23 includes a left support sheet, a right support sheet and a bottom sheet, the left support sheet is installed at the outer side of the left protection sheet, and the right support sheet is installed at the outer side of the right protection sheet.

In this embodiment, the protective cover 24 is provided to protect the joint 3. When the ladder tube is folded, the base 23 can support the joint 3, and the joint 3 is prevented from being deformed and damaged due to the fact that the joint 3 is directly contacted with the ground when the ladder is stored.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. Platform joint ladder, its characterized in that: the ladder comprises a front ladder frame and a rear ladder frame which are hinged with each other at the tops, wherein a platform is connected between the front ladder frame and the rear ladder frame, one end of the platform is hinged on the front ladder frame, and a connecting rod is hinged between the middle part of the side surface of the platform and the rear ladder frame; preceding ladder frame and back ladder frame all include the ladder pipe of two parallels, the ladder pipe all includes a plurality of subsection, articulates between the adjacent subsection.

2. The plateau escalator of claim 1, wherein: even there is the bracing piece that is used for supporting platform between two ladder pipes of back ladder frame, just the bottom of platform is equipped with the recess that can block with the bracing piece.

3. The plateau escalator of claim 1, wherein: the number of sections of the ladder tube is two.

4. The plateau escalator of claim 3, wherein: be fixed with three between two ladder pipes of preceding ladder frame and step on the pipe, it is three step on the pipe all sets up on the section of the ladder socle portion that is close to preceding ladder frame, the platform is located the section that is close to ladder pipe top.

5. The plateau escalator of claim 4, wherein: a fixing rod is connected between the two ladder tubes of the rear ladder frame and arranged on a section close to the bottoms of the ladder tubes.

6. The plateau-jointed ladder of any one of claims 1-5, wherein: a U-shaped safety protection pipe is connected between the tops of the two ladder pipes of the front ladder frame.

7. The plateau escalator of claim 6, wherein: the bottoms of two ladder pipes in preceding ladder frame and the back ladder frame all are the splayed and distribute.

8. The plateau-jointed ladder of any one of claims 1-3, wherein: the adjacent segments are connected through joints, and the joints can limit the angle between the adjacent segments.

9. The plateau escalator of claim 8, wherein: the joint comprises a left outer sheet, a left inner sheet, a right outer sheet, a right inner sheet, a shifting sheet, a trigger, a sliding fixture block, a reset spring and a compression spring, wherein the left outer sheet, the left inner sheet, the shifting sheet, the right inner sheet and the right outer sheet are connected through rivets, a plurality of clamping grooves are correspondingly arranged on the outer circumferences of the left inner sheet and the right inner sheet, guide grooves are correspondingly arranged on the left outer sheet and the right outer sheet, two ends of the sliding fixture block are correspondingly arranged in the guide grooves on the left outer sheet and the right outer sheet, the sliding fixture block can be matched with each clamping groove, the compression spring is sleeved on a positioning rod of the sliding fixture block, the left outer sheet and the right outer sheet are provided with guide sheets, the positioning rod is arranged in positioning holes of the guide sheets in a penetrating manner, the trigger is hinged on the left outer sheet and the right outer sheet through semi-hollow rivets, the head of the trigger can push the sliding fixture block to be in and out of the, the return spring is arranged between the spring joint of the left inner sheet and the right inner sheet and the protrusion, and the front end of the protrusion is higher than the outer circumferences of the left inner sheet and the right inner sheet.

10. The plateau escalator of claim 9, wherein: the joint is externally provided with a protective cover, and the protective cover is externally provided with a base for supporting the joint.