CN211058695U

CN211058695U - Multifunctional ladder stand

Info

Publication number: CN211058695U
Application number: CN201921795963.XU
Authority: CN
Inventors: 张卫忠
Original assignee: Guangxi Shanyao Cultural Tourism Co ltd
Current assignee: Guangxi Shanyao Cultural Tourism Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-07-21
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a multifunctional ladder stand, which comprises two sections of ladder frames with the top ends hinged with each other, wherein each section of ladder frame comprises two support rods arranged in parallel, a pedal is connected between the two support rods, the support rods are of a telescopic structure, and a telescopic locking mechanism of the support rods is arranged on the pedal; the top ends of the two support rods on one section of ladder frame are respectively hinged with the two support rods on the other section of ladder frame one by one through two first hinge locking mechanisms; and a second hinged locking mechanism which can bend the middle part of the supporting rod and lock the bending angle of the supporting rod is arranged on the supporting rod. The utility model provides a multifunctional ladder stand, it can not only height-adjusting, can also fold to be the platform form, makes things convenient for constructor at a plurality of high construction and factor of safety.

Description

Multifunctional ladder stand

Technical Field

The utility model relates to a cat ladder field especially relates to a multi-functional cat ladder.

Background

Ladder stands have gradually become an indispensable daily tool in people's life and work. People can carry out various constructions at the eminence through using the cat ladder. The folding ladder does not need to lean against a wall and has good stability, so that the used customer groups are wide.

However, the current collapsible ladder stands have the following disadvantages: 1) the volume is large, and the storage occupied area is large; 2) because the height of the folding ladder is not adjustable, when the folding ladder is used, the folding ladder is placed into a herringbone shape, when the height of the required construction of people is lower than the height of the folding ladder, constructors can only stand on the ladder frame on one side of the folding ladder, two feet of the constructors can only stand on the same quick pedal at the same time, or step on two pedals with different heights up and down respectively, so that the folding ladder is unstable and easy to fatigue, and the risk of falling down by the constructors is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multifunctional ladder stand, it can not only height-adjusting, can also fold to be the platform form, makes things convenient for constructor to be under construction and factor of safety height at a plurality of heights.

In order to achieve the purpose, the utility model provides a multifunctional crawling ladder, which comprises two sections of ladder frames with the top ends hinged with each other, wherein each section of ladder frame comprises two support rods arranged in parallel, a pedal is connected between the two support rods, the support rods are of a telescopic structure, and a telescopic locking mechanism of the support rods is arranged on the pedal; the top ends of the two support rods on one section of ladder frame are respectively hinged with the two support rods on the other section of ladder frame one by one through two first hinge locking mechanisms; and a second hinged locking mechanism which can bend the middle part of the supporting rod and lock the bending angle of the supporting rod is arranged on the supporting rod.

As the utility model discloses a further improvement, every branch includes many loop bars that the activity in proper order cup jointed, the footboard is located one side that adjacent loop bar cup jointed, and flexible locking mechanical system is including passing the first bolt of adjacent loop bar lateral wall simultaneously.

As a further improvement of the utility model, the telescopic locking mechanism further comprises a connecting rod and a button passing through the side wall of the pedal shell, and a first elastic reset piece is connected between the button and the pedal; one end of the connecting rod is hinged with the button, and the other end of the connecting rod is hinged with one end of the first bolt; the other end of the first bolt is a first inserting end which can simultaneously penetrate through the side walls of the adjacent loop bars; the pedal is provided with a sliding guide part of a first bolt.

As a further improvement of the present invention, each of the retractable locking mechanisms includes two connecting rods and two first bolts, and the two first bolts correspond to the loop bars on both sides of the pedal where the two first bolts are located.

As a further improvement of the present invention, the first hinge locking mechanism includes a first rotating member and a second rotating member hinged to each other; the first rotating piece is provided with at least two first positioning holes around the axis thereof; the second rotating piece is provided with a second bolt in sliding connection with the second rotating piece; a second elastic reset piece is connected between one end of the second bolt and the second rotating piece, and the other end of the second bolt is a second inserting end capable of penetrating through the first positioning hole in the first rotating piece; the first rotating piece and the second rotating piece are respectively connected with the top end of one supporting rod of each of the two sections of ladder frames.

As a further improvement of the present invention, the second hinge locking mechanism includes a third rotating member and a fourth rotating member that are hinged to each other; the third rotating piece is provided with at least two second positioning holes around the axis of the third rotating piece; a third bolt in sliding connection with the fourth rotating piece is arranged on the fourth rotating piece; a third elastic reset piece is connected between one end of the third bolt and the fourth rotating piece, and the other end of the third bolt is a third inserting end capable of penetrating through a second positioning hole in the third rotating piece; one loop bar in the middle of the supporting bar comprises an upper loop bar and a lower loop bar which are opposite in end part; and a third rotating part and a fourth rotating part of the second hinge locking mechanism are respectively connected with one ends of the upper loop bar and the lower loop bar which are opposite, and the other ends of the upper loop bar and the lower loop bar are respectively sleeved with the adjacent loop bars.

As a further improvement of the utility model, the second hinged locking mechanism comprises a bendable loop bar which is positioned in the middle of the supporting bar, and the bendable loop bar comprises an upper loop bar and a lower loop bar, one ends of which are hinged with each other; the second articulation locking mechanism further comprises a reinforcement bar; one end of the reinforcing rod is connected with the upper supporting rod part positioned on the bendable loop bar, and the other end of the reinforcing rod is connected with the lower supporting rod part positioned on the bendable loop bar.

As a further improvement of the utility model, the upper side wall of the loop bar above the middle bending part of the supporting bar is provided with a groove, and the adjacent loop bars provided with the grooves are sleeved by the grooves; the top edges of the side walls of the grooves of adjacent loop bars are flush with each other.

Advantageous effects

Compared with the prior art, the utility model discloses a multi-functional cat ladder's advantage does:

1. because the supporting rods on the two sections of ladder frames of the multifunctional ladder stand can stretch out and draw back, constructors can adjust the height of the multifunctional ladder stand according to the construction position, and two feet of the constructors are ensured to step on the pedals at the same height of the two sections of ladder frames respectively. Therefore, two feet of the constructors are stressed evenly and stand stably, so that the constructors are not easy to fatigue and fall down. In addition, articulated locking mechanical system of second through branch middle part is folded branch, can fold the cat ladder from the chevron shape state and be the horizontally platform state in middle part, places the backing plate on the horizontal branch that the cat ladder middle part formed this moment, just can let constructor walk about on the backing plate to the convenience is under construction to the great region of horizontal span, need not constructor and frequently adjusts the position of cat ladder, convenient operation.

2. The telescopic locking mechanism of the supporting rod is arranged on the pedal, and the relative position of the adjacent loop bars on the supporting rod is locked by the first bolt, so that the structure is simple, and the operation is convenient.

3. Through the linkage of the button, the connecting rod and the first bolt, the telescopic locking of the loop bars on the two supporting rods can be controlled by pressing only one button, the operation times are reduced, and the time for adjusting the height of the ladder stand is greatly shortened.

4. When the first hinged locking mechanism and the second hinged locking mechanism are used for adjusting the rotating angle, the bolt on the first hinged locking mechanism and the second hinged locking mechanism only need to be pulled out from the positioning hole, the two rotating parts hinged to the first hinged locking mechanism rotate for a certain angle, then the bolt penetrates through the corresponding positioning hole, and the elastic resetting part can prevent the bolt from being pulled out. The bolt of the hinged locking mechanism does not need to be taken out, and is not easy to lose.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the multi-function ladder stand of embodiment 1;

FIG. 2 is a view taken along line A-A of FIG. 1;

FIG. 3 is a schematic sectional view showing a sleeved state of a loop bar in embodiment 1;

FIG. 4 is a state view of the multi-function ladder stand of embodiment 1 folded to be horizontal at the middle portion;

fig. 5 is a partial sectional view of the first hinge locking mechanism in embodiment 1;

fig. 6 is a top sectional view of the telescopic lock mechanism in embodiment 1;

FIG. 7 is one of state views of the multi-function ladder stand according to embodiment 2;

fig. 8 is a second state diagram of the multi-function ladder stand according to embodiment 2.

Detailed Description

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Example 1

The utility model discloses a specific embodiment is as shown in fig. 1 to fig. 6, a multi-functional cat ladder, including two sections ladder framves of top mutual articulated, every section ladder frame all is connected with footboard 2 including two branch 1 that arrange side by side between two branch 1, and branch 1 is telescopic structure, is equipped with the flexible locking mechanical system 3 of branch 1 on the footboard 2. The top ends of the two support rods 1 on one section of ladder frame are respectively hinged with the two support rods 1 on the other section of ladder frame one by one through two first hinged locking mechanisms 4. The support rod 1 is provided with a second hinge locking mechanism 5 which can bend the middle part of the support rod 1 and lock the bending angle of the support rod.

Each branch 1 includes many loop bars 11 that activity in proper order cup jointed, and footboard 2 is located one side of adjacent loop bar 11 cup joints department, and flexible locking mechanical system 3 includes the first bolt 33 that can pass adjacent loop bar 11 lateral wall simultaneously.

The telescopic locking mechanism 3 further comprises a connecting rod 34 and a button 31 penetrating through the side wall of the shell of the pedal 2, and a first elastic reset piece 32 is connected between the button 31 and the pedal 2. The first elastic restoring member 32 may be a spring. The link 34 has one end hinged to the button 31 and the other end hinged to one end of the first latch 33. The other end of the first pin 33 is a first inserting end which can simultaneously penetrate through the side wall of the adjacent loop bar 11. The pedal 2 is provided with a slide guide 35 of the first latch 33. The sliding guide part 35 limits the first bolt 33 to do linear motion, and a roller which is in rolling contact with the side wall of the first bolt 33 is rotatably connected to the sliding guide part 35. In this embodiment, each telescopic locking mechanism 3 includes two connecting rods 34 and two first bolts 33, and the two first bolts 33 respectively correspond to the loop bars 11 on both sides of the pedal 2. In the free state, the first pin 33 is in a state of passing through the through holes on the side walls of two adjacent loop bars 11 at the same time, and the position of the adjacent loop bars 11 is locked. The through holes on the loop bar 11 can be arranged in a plurality along the length direction of the loop bar 11 to provide a plurality of height selections. By pressing the button 31, the button 31 makes a linear motion, and the connecting rod 34 swings to drive the first pin 33 to move linearly, and at this time, the first inserting end of the first pin 33 does not simultaneously penetrate through the through holes of the two adjacent loop bars 11, so that the relative positions of the two loop bars 11 can be adjusted, and the overall length of the supporting rod 1 can be adjusted. After the adjustment is completed, the button 31 is released, and the button 31 is reset by the first elastic reset piece 32.

The first hinge locking mechanism 4 comprises two first and second

rotary members

6 and 7 hinged to each other. The first rotating member 6 is provided with at least two first positioning holes 61 around its axis. The second rotating member 7 is provided with a second bolt 8 which is connected with the second rotating member in a sliding way. A second elastic reset piece 10 is connected between one end of the second bolt 8 and the second rotating piece 7, and the other end is a second inserting end which can penetrate through the first positioning hole 61 on the first rotating piece 6. The first rotating member 6 and the second rotating member 7 are respectively connected with the top end of one supporting rod 1 of each of the two sections of ladder frames.

In this embodiment, the first rotating member 6 and the second rotating member 7 are both provided with flange structures, and the first positioning hole 61 and the second pin 8 are respectively provided on the flange structures of the first rotating member 6 and the second rotating member 7. The flange structure of the second rotating member 7 is further provided with a mounting sleeve 9 of a second elastic restoring member 10. The second plug 8 comprises a pin body 81 and a handle 82, the pin body 81 passes through the inner cavity of the mounting sleeve 9, and the second plug end is located at one end of the pin body 81 far away from the handle 82. The pin body 81 is provided with a baffle 83, the baffle 83 is positioned in the inner cavity of the mounting sleeve 9, and the second elastic resetting piece 10 is positioned between the inner wall of the mounting sleeve 9 and the baffle 83. The second elastic return member 10 is a spring.

The second hinge locking mechanism 5 includes a third rotating member and a fourth rotating member that are hinged to each other. The third rotating piece is provided with at least two second positioning holes around the axis of the third rotating piece. And a third bolt in sliding connection with the fourth rotating piece is arranged on the fourth rotating piece. A third elastic reset piece is connected between one end of the third bolt and the fourth rotating piece, and the other end of the third bolt is a third inserting end capable of penetrating through a second positioning hole in the third rotating piece. One of the loop bars 11 in the middle of the strut 1 comprises an upper loop bar 111 and a lower loop bar 112 with opposite ends. The third rotating member and the fourth rotating member of the second hinge locking mechanism 5 are respectively connected to the opposite ends of the upper loop bar 111 and the lower loop bar 112, and the other ends of the upper loop bar 111 and the lower loop bar 112 are respectively sleeved with the adjacent loop bars 11.

The upper side wall of the loop bar 11 above the middle bending part of the supporting bar 1 is provided with a groove, and the adjacent loop bars 11 provided with the grooves are sleeved through the grooves. The loop bar 11 can be a channel steel structure, and a guide rail in sliding fit with the adjacent loop bar 11 is arranged on the side wall of the loop bar. The top edges of the groove side walls of adjacent loop bars 11 are flush with each other. When the middle part of the strut 1 is bent through the second hinge locking mechanism 5 and the upper sections of the struts 1 of the two ladder frames are in a horizontal state, a backing plate 12 can be placed on the upper sections of the struts 1. At the moment, the grooves of the loop bars 11 at the upper section of the supporting rod 1 are vertically upward and positioned on the same plane, so that the backing plate 12 can be placed more stably. At the moment, constructors can walk on the base plate, so that construction can be conveniently carried out on the region with large transverse span.

Example 2

As shown in fig. 7 and 8, the difference from the embodiment 1 is that the second hinge locking mechanism 5 of the multi-functional ladder stand comprises a bendable loop bar 11 which is arranged at the middle of a pole 1, and the bendable loop bar 11 comprises an upper loop bar 111 and a lower loop bar 112 which are hinged with each other at one end. The second articulation locking mechanism 5 also comprises a reinforcement bar 13. One end of the reinforcing rod 13 is connected with the upper strut 1 part of the bendable loop bar 11, and the other end of the reinforcing rod 13 is connected with the lower strut 1 part of the bendable loop bar 11.

In this embodiment, one end of the reinforcing rod 13 is hinged to the rotating member of the first hinge locking mechanism 4, and the other end is a free end, and a clamping groove is formed in the free end. The side wall of the lower supporting rod 1 of the bendable loop bar 11 is provided with a convex positioning fixture block 14. When the multifunctional crawling ladder is folded to be in a horizontal state at the middle part (namely, the upper loop bar 111 and the lower loop bar 112 form a certain included angle), the clamping groove at the free end of the reinforcing rod 13 is clamped with the positioning clamping block 14 on the support rod 1, so that the bending angle of the support rod 1 is locked, and the stability is better.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. A multifunctional ladder stand comprises two sections of ladder frames with the top ends hinged with each other, each section of ladder frame comprises two support rods (1) arranged in parallel, a pedal (2) is connected between the two support rods (1), and the multifunctional ladder stand is characterized in that the support rods (1) are of a telescopic structure, and a telescopic locking mechanism (3) of the support rods (1) is arranged on the pedal (2); the top ends of the two support rods (1) on one section of ladder frame are respectively hinged with the two support rods (1) on the other section of ladder frame one by one through two first hinge locking mechanisms (4); and a second hinged locking mechanism (5) which can bend the middle part of the supporting rod (1) and lock the bending angle of the supporting rod (1) is arranged on the supporting rod (1).

2. A ladder as claimed in claim 1, characterised in that each of said legs (1) comprises a plurality of successively moveably engaged rods (11), said footplate (2) being located on one side of the engagement of adjacent rods (11), and the telescopic locking mechanism (3) comprises a first pin (33) which is capable of passing through the side wall of an adjacent rod (11) simultaneously.

3. A ladder as claimed in claim 2, characterised in that the telescopic locking mechanism (3) further comprises a link (34) and a push button (31) passing through the side wall of the housing of the step (2), a first resilient return member (32) being connected between the push button (31) and the step (2); one end of the connecting rod (34) is hinged with the button (31), and the other end is hinged with one end of the first bolt (33); the other end of the first bolt (33) is a first inserting end which can simultaneously penetrate through the side wall of the adjacent loop bar (11); the pedal (2) is provided with a sliding guide part (35) of a first bolt (33).

4. A ladder as claimed in claim 3, characterised in that each telescopic locking mechanism (3) comprises two links (34) and two first pins (33), the two first pins (33) corresponding to the loop bars (11) on either side of the step (2) on which they are located.

5. A multi-function ladder as claimed in claim 2, characterized in that the first articulated locking mechanism (4) comprises two first (6) and second (7) mutually articulated elements; the first rotating piece (6) is provided with at least two first positioning holes (61) around the axis thereof; the second rotating piece (7) is provided with a second bolt (8) in sliding connection with the second rotating piece; a second elastic reset piece (10) is connected between one end of the second bolt (8) and the second rotating piece (7), and the other end of the second bolt is a second inserting end which can penetrate through the first positioning hole (61) on the first rotating piece (6); the first rotating piece (6) and the second rotating piece (7) are respectively connected with the top end of one supporting rod (1) of each of the two sections of ladder frames.

6. A multi-function ladder as claimed in claim 2 or 5, characterised in that the second hinge locking means (5) comprises a third and a fourth swivel element hinged to each other; the third rotating piece is provided with at least two second positioning holes around the axis of the third rotating piece; a third bolt in sliding connection with the fourth rotating piece is arranged on the fourth rotating piece; a third elastic reset piece is connected between one end of the third bolt and the fourth rotating piece, and the other end of the third bolt is a third inserting end capable of penetrating through a second positioning hole in the third rotating piece; one loop bar (11) in the middle of the support bar (1) comprises an upper loop bar (111) and a lower loop bar (112) with opposite ends; and a third rotating part and a fourth rotating part of the second hinge locking mechanism (5) are respectively connected with one ends of the upper loop bar (111) and the lower loop bar (112) which are opposite, and the other ends of the upper loop bar (111) and the lower loop bar (112) are respectively sleeved with the adjacent loop bars (11).

7. A multi-function ladder as claimed in claim 2 or 5, wherein the second articulated locking mechanism (5) comprises a bendable loop bar (11) located in the middle of the bar (1), the bendable loop bar (11) comprising an upper loop bar (111) and a lower loop bar (112) with one end articulated to each other; the second articulation locking mechanism (5) further comprises a reinforcement bar (13); one end of the reinforcing rod (13) is connected with the upper supporting rod (1) positioned on the bendable loop bar (11), and the other end of the reinforcing rod (13) is connected with the lower supporting rod (1) positioned on the bendable loop bar (11).

8. A multifunctional ladder stand as claimed in claim 2, characterized in that the loop bars (11) above the middle bent part of the support bar (1) are provided with grooves on the upper side walls, and the adjacent loop bars (11) provided with grooves are sleeved by the grooves; the top edges of the side walls of the grooves of adjacent loop bars (11) are flush with each other.