CN216665481U

CN216665481U - Life saving ladder

Info

Publication number: CN216665481U
Application number: CN202123338275.0U
Authority: CN
Inventors: 林铭海
Original assignee: Foshan Jingsheng Technology Co ltd
Current assignee: Foshan Jingsheng Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-03
Anticipated expiration: 2031-12-28

Abstract

The utility model provides an escape ladder, which comprises a bottom support frame and a top support frame, wherein the bottom support frame comprises four vertically arranged support rods, and the upper end of each support frame is connected with the top support frame above the support frame through a connecting device; the top support frame comprises two U-shaped frames in an inverted U-shaped structure, a seat bottom frame is connected to the middle of the two U-shaped frames, and a folding seat is mounted above the seat bottom frame; the utility model has simple design structure and convenient use, the top of the lifesaving ladder is provided with the folding seat which is convenient for the rescue personnel to sit and stand, the rescue personnel is facilitated to reduce physical consumption when carrying out rescue, and the connecting device is adopted to realize the connection of the bottom supporting frame and the top supporting frame, thereby having the advantages of firm connection and strong stability.

Description

Life saving ladder

Technical Field

The utility model relates to the technical field of ladder design, in particular to an escape ladder.

Background

At present, the escape ladder is used for disaster rescue, the traditional escape ladder has a single structural form and poor stability, and rescue personnel cannot sit on the ladder, so that physical strength consumption is overlarge during rescue; in addition, although the existing escape ladder also adopts a splicing structure to increase the overall height of the ladder, the splicing part of the existing escape ladder is complex in structure and poor in splicing firmness, and certain potential safety hazards are brought to rescue work.

SUMMERY OF THE UTILITY MODEL

The utility model provides an escape ladder, which aims to solve the problems that the escape ladder in the background technology cannot facilitate rescue workers to sit and stand, so that the physical consumption is too large, and the firmness of a splicing structure is poor.

The technical scheme of the utility model is realized as follows:

an escape ladder comprises a bottom support frame and a top support frame, wherein the bottom support frame comprises four vertically arranged support rods, and the upper end of each support frame is connected with the top support frame above the support frame through a connecting device; the top support frame comprises two U-shaped frames in an inverted U-shaped structure, a seat bottom frame is connected to the middle positions of the two U-shaped frames, and a folding seat is installed above the seat bottom frame.

Preferably, the folding seat comprises a fixed plate and a movable plate, the fixed plate is mounted on the seat bottom frame through a bolt, and the movable plate is movably connected with the fixed plate.

Preferably, a first connecting piece is installed at the lower position of each of two sides of the movable plate, a spherical bulge protruding outwards is arranged at the lower end position of the outer side surface of the first connecting piece, a second connecting piece is installed at the end position of each of two sides of the fixed plate, a round hole matched with the spherical bulge is formed in the end part of each of the two connecting pieces, and the spherical bulge on the first connecting piece is clamped in the round hole of the second connecting piece.

Preferably, the lower end positions of two adjacent support rods are provided with connecting rods, and a plurality of pedal rods are arranged between the two support rods at equal intervals.

Preferably, horizontal seat side frames are mounted at the back positions of the two U-shaped frames.

Preferably, the connecting device comprises a first connecting piece and a second connecting piece, the cross sections of the first connecting piece and the second connecting piece are of arc structures, the edge positions of the first connecting piece and the second connecting piece are respectively provided with a convex part extending outwards and a concave part sinking inwards, a disc coaxial with the first connecting piece is installed on the inner wall position of the first connecting piece, and a disc installing groove matched with the disc is formed in the inner wall position of the second connecting piece.

Preferably, a columnar bulge protruding outwards is arranged in the middle of the first connecting piece, a threaded hole penetrating through the columnar bulge and the first connecting piece is formed in the center of the columnar bulge, and the center line of the threaded hole is perpendicular to the center line of the first connecting piece; and the middle position of the second connecting piece is provided with a mounting hole corresponding to the columnar bulge.

Preferably, the outer walls of the first connecting piece and the second connecting piece are provided with anti-skid grains.

Preferably, the middle positions of the outer walls of the first connecting piece and the second connecting piece are both provided with annular steps, and the thickness of each annular step is equal to that of each supporting rod.

By adopting the technical scheme, the utility model has the beneficial effects that:

the utility model has simple design structure and convenient use, the top of the escape ladder is provided with the folding seat which is convenient for the rescue personnel to sit and stand, the rescue personnel is helped to reduce the physical consumption when the rescue personnel carries out rescue, and the connecting device is adopted to realize the connection of the bottom supporting frame and the top supporting frame, thereby having the advantages of firm connection and strong stability.

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, and 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 perspective view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of the folding seat of the present invention;

fig. 4 is an exploded view of the connection device of the present invention.

Wherein:

1. a support bar; 2. a foot lever; 3. a connecting rod; 4. a connecting device; 401. a first connecting piece; 402. a second connecting piece; 403. an upper disc; 404. a first bulge part; 405. a first groove part; 406. a columnar bulge; 407. a threaded hole; 408. a lower disc; 409. a disc mounting groove; 410. a second bulge part; 411. a groove part II; 412. mounting holes; 413. anti-skid lines; 414. an annular step; 5. a seat bottom frame; 6. a U-shaped frame; 7. folding the seat; 701. a fixing plate; 702. a movable plate; 703. connecting a first sheet; 704. a spherical bulge; 705. a second connecting sheet; 706. a circular hole; 8. a seat side frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an escape ladder comprises a bottom support frame and a top support frame, wherein the bottom support frame comprises four vertically arranged support rods 1, and the upper end of each support frame is connected with the top support frame above the support frame through a connecting device 4; the top support frame includes two U type framves 6 that are the structure of falling U style of calligraphy, and the intermediate position of two U type framves 6 is connected with seat chassis 5, folding seat 7 is installed to seat chassis 5's top.

Specifically, the folding seat 7 comprises a fixed plate 701 and a movable plate 702, the fixed plate 701 is mounted on the seat bottom frame 5 through bolts, the movable plate 702 is movably connected with the fixed plate 701, first connecting pieces 703 are mounted below two sides of the movable plate 702, spherical protrusions 704 protruding outwards are arranged at the lower ends of the outer side surfaces of the first connecting pieces 703, second connecting pieces 705 are mounted at the end parts of two sides of the fixed plate 701, circular holes 706 matched with the spherical protrusions 704 are formed at the end parts of the second connecting pieces 705, and the spherical protrusions 704 on the first connecting pieces 703 are clamped in the circular holes 706 of the second connecting pieces 705; the purpose of this is: under the condition that the patient needs to sit or stand, the movable plate 702 can be turned to be in a vertical state and used as a backrest to bear the acting force applied by the back of the rescue personnel, so that the physical consumption of the rescue personnel is reduced; under the condition that does not need to sit upright, the movable plate 702 can be folded and also can be disassembled, thereby meeting the use requirements under different conditions.

Specifically, install connecting rod 3 in the lower extreme position of two adjacent bracing pieces 1, wherein equidistant a plurality of pedal poles 2 of installing between two bracing pieces 1 for convenient climbing and the overall structure stability who improves the bottom sprag frame, wherein, connecting rod 3 both ends adopt the bolt to install on bracing piece 1, and pedal pole 2 also adopts the bolt to install on bracing piece 1, can dismantle convenient to accomodate when idle.

Specifically, horizontal seat side frames 8 are installed at the back positions of the two U-shaped frames 6 to limit the movable plate 702 when the movable plate 702 is in the vertical state.

Specifically, the connecting device 4 comprises a first connecting piece 401 and a second connecting piece 402, the cross sections of which are of arc structures, the edge positions of the first connecting piece 401 and the second connecting piece 402 are both provided with a convex part extending outwards and a concave part sinking inwards, a disc coaxial with the first connecting piece 401 is mounted on the inner wall position of the first connecting piece 401, and a disc mounting groove 409 matched with the disc is arranged on the inner wall position of the second connecting piece 402; as shown in fig. four, the first connecting piece 401 has a first protruding portion 404 and a first groove portion 405, the second connecting piece 402 has a second protruding portion 410 and a second groove portion 411, the first protruding portion 404 and the second groove portion 411 correspond to each other, and the first groove portion 405 and the second protruding portion 410 correspond to each other, so that when the first connecting piece 401 and the second connecting piece 402 are spliced, the vertical position limitation is realized, and the relative sliding between the first connecting piece 401 and the second connecting piece 402 is avoided; the upper disc 403 and the lower disc 408 are arranged at the upper inner side and the lower inner side of the first connecting piece 401, and the disc mounting grooves 409 are arranged at the upper inner side and the lower inner side of the second connecting piece 402, so that the first connecting piece 401 and the second connecting piece 402 can be quickly butted in the splicing process, and the problem of dislocation is prevented.

Specifically, a columnar boss 406 protruding outwards is arranged in the middle of the first connecting piece 401, a threaded hole 407 penetrating through the columnar boss 406 and the first connecting piece 401 is formed in the center of the columnar boss 406, and the center line of the threaded hole 407 and the center line of the first connecting piece 401 are perpendicular to each other; the middle position of the second connecting piece 402 is provided with a mounting hole 412 corresponding to the columnar protrusion 406, the columnar protrusion 406 corresponds to the mounting hole 412, the situation that the first connecting piece 401 and the second connecting piece 402 are staggered in butt joint is further prevented, a bolt penetrates through the threaded hole 407 from outside to inside, the tail end of the bolt extends into the mounting hole 412, when the bolt is continuously rotated, the first connecting piece 401 and the second connecting piece 402 can be separated, acting force is applied to the upper pipe piece and the lower pipe piece when the two pipe pieces (the lower end of the U-shaped frame 6 and the upper end of the supporting rod 1) are in butt joint, and the butt joint firmness is improved.

Specifically, the outer walls of the first connecting piece 401 and the second connecting piece 402 are provided with anti-slip threads 413 to increase friction force between the first connecting piece and the inner wall of the pipe fitting and improve butt joint effect.

Specifically, the annular steps 414 are arranged in the middle positions of the outer walls of the first connecting piece 401 and the second connecting piece 402, the thickness of each annular step 414 is the same as that of the supporting rod 1, and the annular steps 414 are arranged to play a limiting role, so that the upper pipe fitting and the lower pipe fitting can be in contact with the annular steps 414 to achieve limiting; secondly, in order to achieve the effect of attractive appearance, the thickness of the annular step 414 is the same as the wall thickness of the upper pipe fitting and the wall thickness of the lower pipe fitting, so that the butt joint part is attractive and elegant.

The working principle is as follows: in an idle state, the top support frame and the bottom support frame can be respectively disassembled so as to reduce the occupation of space and facilitate the storage; when the combined type seat bottom support frame is used, the supporting rod 1, the pedal rod 2 and the connecting rod 3 of the bottom support frame are assembled in a bolt connection mode, the two U-shaped frames 6, the seat bottom frame 5 and the seat side frames 8 of the top support frame are also assembled in a bolt connection mode, and therefore the bottom support frame and the top support frame are formed respectively.

After the bottom support frame and the top support frame are molded, the connecting devices 4 are respectively installed at the upper end positions of the four support rods 1, the upper ends of the four bottom corners of the top support frame are inserted into the upper ends of the connecting devices 4, namely, the upper ends of the support rods 1 are in contact with the lower surface of the annular step 414, the lower end surface of the U-shaped frame 6 is in contact with the upper surface of the annular step 414, the first connecting piece 401 and the second connecting piece 402 are assembled to form the connecting devices 4, the connecting devices 4 are installed in the threaded hole 407 of the first connecting piece 401 through bolts, after the tail ends of the bolts are in contact with the root of the installation hole 412 of the second connecting piece 402, the bolts are continuously rotated, the first connecting piece 401 is separated from the second connecting piece 402, acting force is applied to the U-shaped frame 6 above and the support rod 1 below in a spread state, and the U-shaped frame 6 is connected with the support rod 1 through friction force.

The butt joint mode is also suitable for butt joint among a plurality of bottom supports, namely the number of the bottom supports can be selected according to actual conditions, so that the use requirements of different rescue heights can be met.

A folding seat 7 is arranged above the seat underframe 5, a movable plate 702 of the folding seat 7 can rotate relative to the fixed plate 701, when the movable plate 702 is in a vertical state, the movable plate 702 can be used as a backrest, a rescuer can sit on the fixed plate 701, and the back of the rescuer leans against the movable plate 702, so that the sitting and standing purposes are achieved, and the physical consumption is reduced; when needing to stand, movable plate 702 can fold into the horizontality, rescue personnel can stand at the movable plate 702 back and rescue, in order to ensure rescue personnel's safety, can dismantle movable plate 702 from fixed plate 701, thereby prevent that movable plate 702 from producing and rocking, improve factor of safety, specific operation mode is, because connection piece one 703 and connection piece two 705 all adopt sheet metal (stainless steel, alloy steel etc.), when moving connection piece two 705 outwards hard, connection piece two 705 can produce certain degree elastic deformation, can become spherical arch 704 and round hole 706 under the buckle state originally and break away from the state, thereby dismantle movable plate 702.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An escape ladder, its characterized in that: the device comprises a bottom support frame and a top support frame, wherein the bottom support frame comprises four vertically arranged support rods (1), and the upper end of each support frame is connected with the top support frame above the support frame through a connecting device (4); the top support frame comprises two U-shaped frames (6) which are of an inverted U-shaped structure, the middle positions of the two U-shaped frames (6) are connected with a seat bottom frame (5), and a folding seat (7) is installed above the seat bottom frame (5).

2. An escape ladder according to claim 1, characterised in that: the folding seat (7) comprises a fixed plate (701) and a movable plate (702), the fixed plate (701) is mounted on the seat bottom frame (5) through bolts, and the movable plate (702) is movably connected with the fixed plate (701).

3. An escape ladder as claimed in claim 2, wherein: connecting pieces I (703) are installed at the lower positions of two sides of the movable plate (702), spherical protrusions (704) protruding outwards are arranged at the lower end positions of the outer side surface of the connecting pieces I (703), connecting pieces II (705) are installed at the end positions of two sides of the fixed plate (701), circular holes (706) matched with the spherical protrusions (704) are formed in the end portions of the connecting pieces II (705), and the spherical protrusions (704) on the connecting pieces I (703) are clamped in the circular holes (706) of the connecting pieces II (705).

4. An escape ladder according to claim 1, characterised in that: the lower end positions of two adjacent support rods (1) are provided with connecting rods (3), wherein a plurality of foot rest rods (2) are arranged between the two support rods (1) at equal intervals.

5. An escape ladder according to claim 1, characterised in that: horizontal seat side frames (8) are arranged at the back positions of the two U-shaped frames (6).

6. An escape ladder according to claim 1, characterised in that: the connecting device (4) comprises a first connecting piece (401) and a second connecting piece (402) which are arc-shaped in cross section, outward extending protruding portions and inward recessed groove portions are arranged at the edge positions of the first connecting piece (401) and the second connecting piece (402), a disc which is coaxial with the first connecting piece (401) is installed at the inner wall position of the first connecting piece (401), and a disc installing groove (409) matched with the disc is formed in the inner wall position of the second connecting piece (402).

7. An escape ladder according to claim 6, characterised in that: a columnar boss (406) protruding outwards is arranged in the middle of the first connecting piece (401), a threaded hole (407) penetrating through the columnar boss (406) and the first connecting piece (401) is formed in the center of the columnar boss (406), and the center line of the threaded hole (407) and the center line of the first connecting piece (401) are perpendicular to each other; and a mounting hole (412) corresponding to the columnar protrusion (406) is formed in the middle of the second connecting piece (402).

8. An escape ladder according to claim 6, characterised in that: and anti-skid threads (413) are arranged on the outer walls of the first connecting piece (401) and the second connecting piece (402).

9. The ladder of claim 6, further comprising: annular steps (414) are arranged in the middle of the outer walls of the first connecting piece (401) and the second connecting piece (402), and the thickness of each annular step (414) is the same as that of the wall of the support rod (1).