CN211230193U

CN211230193U - Fire-fighting extension ladder

Info

Publication number: CN211230193U
Application number: CN201921082763.XU
Authority: CN
Inventors: 李清
Original assignee: Jiujiang Haochuan Fire Protection Equipment Co ltd
Current assignee: Jiujiang Haochuan Fire Protection Equipment Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-08-11
Anticipated expiration: 2029-07-11

Abstract

The utility model relates to a fire control extension ladder technical field, and disclose a fire control extension ladder, solved and did not possess the buffer function when the present extension ladder glides to and the relatively poor problem of bottom holding power, it includes extension ladder body, buffering subassembly and supports anti-skidding subassembly, extension ladder body bottom one end fixedly connected with buffering subassembly, the utility model discloses, through the setting of supporting anti-skidding subassembly, make it separate with the connecting plate through stirring the bottom plate, make the bottom plate be located ground and place, simultaneously with branch and latch joint, constitute the triangle support, thereby improve extension ladder body bottom holding power, and the bottom plate has increased the area of contact with ground, further avoids extension ladder body to skid; through the setting of buffering subassembly, when the accidental landing of the ladder in the extension ladder body in the use, the impact force of lapse acts on the buffer board, under the effect of elastic rod, first spring and gasbag to subduct power, the effectual personnel of avoiding receive the damage along with the extension ladder body gliding.

Description

Fire-fighting extension ladder

Technical Field

The utility model belongs to the technical field of the fire control is drawn the ladder, specifically is a fire control is drawn ladder.

Background

The fire-fighting extension ladder is a ladder for fire-fighting and rescue of fire fighters when a fire disaster occurs.

When the extension ladder slides down accidentally, personnel slide too fast along with the extension ladder, and the personnel will be damaged, and the existing extension ladder does not have the buffering function, and the existing fire-fighting extension ladder is inclined to the ground at the direct bottom usually when in use, and the bottom supporting force is poor.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a fire control draws ladder, effectual solution do not possess buffer function when drawing ladder accident gliding at present to and the relatively poor problem of bottom sprag power.

In order to achieve the above object, the utility model provides a following technical scheme: a fire-fighting extension ladder comprises an extension ladder body, a buffer assembly and a supporting anti-skid assembly, wherein one end of the bottom of the extension ladder body is fixedly connected with the buffer assembly, the buffer assembly comprises a buffer seat, a first buffer cavity, a second buffer cavity, a buffer block, an elastic rod, a buffer plate, ejector rods, a top plate, a first spring, a sliding plate and an air bag, the first buffer cavity is arranged in the middle of the upper end of the buffer seat, the second buffer cavity is respectively arranged at two sides of the first buffer cavity opposite to the upper end of the buffer seat, the buffer block is connected in the first buffer cavity in a sliding manner, the elastic rod is uniformly connected at the lower end of the buffer block, the buffer plate is fixedly connected at the upper end of the buffer block, the ejector rods are connected at two sides of the lower end of the buffer plate corresponding to the second buffer cavity, the top plate is fixedly connected at the lower end of the ejector rods opposite to the second, support anti-skidding subassembly including the connecting plate, the bottom plate, the fixture block, the fixed slot, the latch, branch, hold the chamber, the baffle, peg graft pole and second spring, connecting plate one end with draw ladder body fixed connection, connecting plate lower extreme one side is rotated and is connected with the bottom plate, the bottom plate is kept away from connecting plate one end fixedly connected with fixture block, and fixture block one side end has seted up the fixed slot, fixture block one side is connected with the latch for bottom plate upper end equidistance, connecting plate one end is rotated and is connected with branch, and branch lower extreme and latch joint, the connecting plate is kept away from bottom plate one end and has been seted up and is held the chamber, hold the inside sliding connection of chamber and have the baffle, baffle one end.

Preferably, the upper end of the buffer plate is connected with a rubber pad.

Preferably, the connecting plate is rotatably connected with the bottom plate through a first connecting seat, and the connecting plate is rotatably connected with the support rod through a second connecting seat.

Preferably, the two support rods are fixedly connected through a connecting shaft.

Preferably, peg graft pole one end and fixed slot all are the bench type, and the fixture block inside wall sets up the radius cambered surface of being convenient for guide peg graft pole.

Preferably, the cross section of the connecting plate is L-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses, through the setting of supporting anti-skidding subassembly, when drawing the ladder body to erect, stir the bottom plate and make it separate with the connecting plate for the bottom plate is located ground and places, simultaneously with branch and latch joint, constitutes the triangle-shaped support, thereby improves and draws ladder body bottom holding power, and the bottom plate has increased the area of contact with ground, further avoids drawing the ladder body to skid;

(2) through the setting of buffering subassembly, when the unexpected landing of extension ladder in the use, the impact force of lapse acts on the buffer board, and the buffer board will do all can by buffer block and ejector pin downward transmission, under the effect of elastic rod, first spring and gasbag to will do all can the buffering and subduct, effectual personnel of avoiding receive the damage along with the extension ladder body gliding.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the cushion assembly of the present invention;

fig. 3 is a schematic view of an installation structure of the second spring of the present invention;

in the figure: 1. a ladder body; 2. a buffer assembly; 3. a buffer seat; 4. a first buffer chamber; 5. a second buffer chamber; 6. a buffer block; 7. an elastic rod; 8. a buffer plate; 9. a top rod; 10. a top plate; 11. a first spring; 12. a slide plate; 13. an air bag; 14. supporting the anti-skid assembly; 15. a connecting plate; 16. a base plate; 17. a clamping block; 18. fixing grooves; 19. clamping teeth; 20. a strut; 21. a cavity; 22. a baffle plate; 23. a plug rod; 24. a second spring; 25. a first connecting seat; 26. a second connecting seat; 27. and (7) connecting the shafts.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, fig. 2 and fig. 3, the utility model comprises a pull ladder body 1, a buffer assembly 2 and a support anti-skid assembly 14, wherein one end of the bottom of the pull ladder body 1 is fixedly connected with the buffer assembly 2, the buffer assembly 2 comprises a buffer base 3, a first buffer chamber 4, a second buffer chamber 5, a buffer block 6, an elastic rod 7, a buffer plate 8, a top rod 9, a top plate 10, a first spring 11, a sliding plate 12 and an air bag 13, the middle part of the upper end of the buffer base 3 is provided with the first buffer chamber 4, two sides of the first buffer chamber 4 are respectively provided with the second buffer chamber 5 relative to the upper end of the buffer base 3, the buffer block 6 is slidably connected inside the first buffer chamber 4, the elastic rod 7 is uniformly connected to the lower end of the buffer block 6, the buffer plate 8 is fixedly connected to the upper end of the buffer block 6, two sides of the lower end of the buffer plate 8 are connected to the top rod, the lower end of the top plate 10 is connected with a sliding plate 12 through a first spring 11, the lower end of the sliding plate 12 is connected with an air bag 13, when the grading ladder in the ladder body 1 slides down, downward impact force acts on the buffer plate 8, the buffer plate 8 transmits the force downwards through the buffer block 6 and the ejector rod 9, at the moment, the buffer block 6 extrudes the elastic rod 7, the ejector rod 9 extrudes the first spring 11 downwards, and then the force acts on the sliding plate 12 to extrude the air bag 13 through the first spring 11, so that the force is buffered and reduced, one side of the lower end of the ladder body 1 is fixedly connected with a supporting antiskid component 14, the supporting antiskid component 14 comprises a connecting plate 15, a bottom plate 16, a clamping block 17, a fixing groove 18, a clamping tooth 19, a supporting rod 20, a containing cavity 21, a baffle plate 22, an inserting rod 23 and a second spring 24, one end of the connecting plate 15 is fixedly connected with the ladder body 1, one side of, and fixture block 17 one side end has seted up fixed slot 18, fixture block 17 one side is connected with latch 19 for 16 upper ends equidistance of bottom plate, connecting plate 15 one end is rotated and is connected with branch 20, and branch 20 lower extreme and latch 19 joint, connecting plate 15 keeps away from 16 one end of bottom plate and has seted up and hold the chamber 21, hold the inside sliding connection of chamber 21 and have baffle 22, baffle 22 one end middle part fixedly connected with peg graft pole 23, and peg graft pole 23 and fixed slot 18 joint, peg graft pole 23 one end is kept away from to baffle 22 is connected with second spring 24, through when the inclined placement of extension ladder body 1, stir bottom plate 16, separate bottom plate 16 and connecting plate 15, make bottom plate 16 be located ground and place, simultaneously with branch 20 and latch 19 joint, form the triangle-shaped support, thereby improve 1 bottom spra.

In the second embodiment, on the basis of the first embodiment, the upper end of the buffer plate 8 is connected with a rubber pad, so that the buffer plate 8 is prevented from being abraded by impact when the extension ladder body 1 slides downwards.

In the third embodiment, on the basis of the first embodiment, the connecting plate 15 is rotatably connected with the bottom plate 16 through the first connecting seat 25, and the connecting plate 15 is rotatably connected with the supporting rod 20 through the second connecting seat 26, so that the bottom plate 16 and the supporting rod 20 can rotate conveniently.

In the fourth embodiment, on the basis of the first embodiment, the two supporting rods 20 are fixedly connected through the connecting shaft 27, so that the supporting rods 20 on the two sides can move synchronously.

Fifth, on the basis of the first embodiment, one end of the insertion rod 23 and the fixing groove 18 are both in a table shape, and the inner side wall of the fixture block 17 is provided with a rounded arc surface convenient for guiding the insertion rod 23.

Sixth embodiment, on the basis of first embodiment, the connecting plate 15 cross-section is the L type, conveniently holds up the extension ladder body 1 from the bottom.

The working principle is as follows: when the extension ladder is used, when the extension ladder body 1 is obliquely placed, the bottom plate 16 is shifted, the fixed groove 18 extrudes the inserting rod 23, the inserting rod 23 is stressed to extrude the second spring 24, the second spring 24 contracts, the bottom plate 16 is separated from the connecting plate 15, the bottom plate 16 is placed on the ground, the support rod 20 is clamped with the clamping teeth 19 to form a triangular support, so that the supporting force of the bottom of the extension ladder body 1 is improved, the contact area of the bottom plate 16 and the ground is increased, and the extension ladder body 1 is further prevented from slipping; when the grading ladder in the extension ladder body 1 accidentally slips off in use, the impact force of downward sliding acts on the buffer plate 8, the buffer plate 8 transmits the force downwards through the buffer block 6 and the ejector rod 9, at the moment, the buffer block 6 extrudes the elastic rod 7, the ejector rod 9 extrudes the first spring 11 downwards, and the first spring 11 is used for extruding the air bag 13 through the sliding plate 12, so that the force is buffered and reduced, and the personnel are effectively prevented from being damaged along with the downward sliding of the extension ladder body 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a ladder is drawn in fire control, includes and draws ladder body (1), buffer unit (2) and support anti-skidding subassembly (14), its characterized in that: the ladder is characterized in that one end of the bottom of the ladder body (1) is fixedly connected with a buffer assembly (2), the buffer assembly (2) comprises a buffer seat (3), a first buffer chamber (4), a second buffer chamber (5), a buffer block (6), an elastic rod (7), a buffer plate (8), ejector rods (9), a top plate (10), a first spring (11), a sliding plate (12) and an air bag (13), the middle part of the upper end of the buffer seat (3) is provided with the first buffer chamber (4), the two sides of the first buffer chamber (4) are respectively provided with the second buffer chamber (5) relative to the upper end of the buffer seat (3), the buffer block (6) is connected in the first buffer chamber (4) in a sliding manner, the elastic rod (7) is uniformly connected to the lower end of the buffer block (6), the buffer plate (8) is fixedly connected to the upper end of the buffer block (6), the ejector rods (9) are connected to, the lower end of the ejector rod (9) is fixedly connected with a top plate (10) relative to the second buffer cavity (5), the lower end of the top plate (10) is connected with a sliding plate (12) through a first spring (11), the lower end of the sliding plate (12) is connected with an air bag (13), one side of the lower end of the pull ladder body (1) is fixedly connected with a supporting anti-skidding assembly (14), the supporting anti-skidding assembly (14) comprises a connecting plate (15), a bottom plate (16), a clamping block (17), a fixing groove (18), a clamping tooth (19), a supporting rod (20), a containing cavity (21), a baffle plate (22), an inserting rod (23) and a second spring (24), one end of the connecting plate (15) is fixedly connected with the pull ladder body (1), one side of the lower end of the connecting plate (15) is rotatably connected with the bottom plate (16), one end, far away from, fixture block (17) one side is connected with latch (19) for bottom plate (16) upper end equidistance, connecting plate (15) one end is rotated and is connected with branch (20), and branch (20) lower extreme and latch (19) joint, bottom plate (16) one end is kept away from in connecting plate (15) has been seted up and has been held chamber (21), hold inside sliding connection of chamber (21) has baffle (22), baffle (22) one end middle part fixedly connected with peg graft pole (23), and peg graft pole (23) and fixed slot (18) joint, peg graft pole (23) one end is kept away from in baffle (22) and one end is connected with second spring (24).

2. A fire fighting extension ladder as defined in claim 1, wherein: the upper end of the buffer plate (8) is connected with a rubber pad.

3. A fire fighting extension ladder as defined in claim 1, wherein: the connecting plate (15) is rotatably connected with the bottom plate (16) through a first connecting seat (25), and the connecting plate (15) is rotatably connected with the support rod (20) through a second connecting seat (26).

4. A fire fighting extension ladder as defined in claim 1, wherein: the two support rods (20) are fixedly connected through a connecting shaft (27).

5. A fire fighting extension ladder as defined in claim 1, wherein: one end of the insertion rod (23) and the fixing groove (18) are both in a table shape, and the inner side wall of the fixture block (17) is provided with an inverted arc surface convenient for guiding the insertion rod (23).

6. A fire fighting extension ladder as defined in claim 1, wherein: the cross section of the connecting plate (15) is L-shaped.