CN219548786U - Fire engine cat ladder - Google Patents

Abstract

The utility model discloses a fire truck cat ladder which comprises a fire truck carriage and two ladder frames, wherein two connecting sleeves are fixedly arranged between the top and the bottom of the side surface of the fire truck carriage, a plurality of jacks are formed in the two sides of the inner wall of each connecting sleeve at equal intervals, connecting columns are fixedly arranged at the top and the bottom of each two ladder frames, and four connecting columns are sleeved and connected with corresponding connecting sleeves. According to the utility model, the connecting shaft is driven to rotate through the installed servo motor, the bidirectional cam is driven to rotate through the rotation of the connecting shaft, the transverse plate is pushed to move through the rotation of the bidirectional cam, and the inserting column is driven to stretch and retract through the movement of the transverse plate, so that the connection and separation of the connecting column and the connecting sleeve are realized, the traditional connection with a fire-fighting carriage through a welding mode is replaced, the installation and the disassembly of the ladder frame are effectively improved, and the damaged ladder frame is convenient to replace in time.

Description

Fire engine cat ladder

Technical Field

The utility model relates to the technical field of fire truck accessories, in particular to a fire truck cat ladder.

Background

The cat ladder of the fire engine is mainly used for climbing to the carriage of the fire engine to operate.

According to the patent number of CN211287493U, a rear ladder stand of a fire truck is disclosed. Comprises a fixed ladder, a rotary ladder, a guide rail assembly and a telescopic rod; the guide rail assembly is fixed behind the fire truck box, one end of the telescopic rod is fixed on the fixed ladder, the other end of the telescopic rod is in sliding connection with the guide rail assembly, and the rotary ladder is hinged to the bottom of the fixed ladder; the rotatory ladder is upwards overturned to be accomodate in fixed ladder, and fixed ladder slides to the guide rail assembly in realizing the whole accomodating of back cat ladder together with the telescopic link, and fixed ladder slides to the fire engine box outside together with the telescopic link, and rotatory ladder is downwards overturned and is realized the back cat ladder and prop up. Can realize accomodating when not using, do not influence the normal use and the same person of fire engine, fixed firm when using, easily climb provides the guarantee for the convenient, quick, the safe operation of going up the roof and carrying out fire monitor of fire fighter and taking roof equipment.

Above-mentioned fire engine cat ladder can realize accomodating when not using, does not influence the normal use and the same person of fire engine, and is fixed firm when using, climbs easily, but above-mentioned fire engine cat ladder is installed mainly through the welding mode when the installation, when the fire engine cat ladder damages, needs to cut damaged fire engine cat ladder, then welds new cat ladder on fire engine carriage, complex operation is inconvenient for change.

Disclosure of Invention

The utility model aims to provide a fire truck cat ladder so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fire engine cat ladder, includes fire engine carriage and two ladder frames, equal fixed mounting has two adapter sleeves between the top and the bottom of fire engine carriage side, a plurality of jack is seted up to the equal distance in inner wall both sides of adapter sleeve, two the equal fixed spliced pole that is equipped with in top and the bottom of ladder frame, four the spliced pole is established with the adapter sleeve cover that corresponds and is connected, the inside fixed block that is equipped with of adapter sleeve, the end department of spliced pole is seted up flutedly, the fixed block inlays with the recess and establishes to be connected, a plurality of through-holes have been seted up to the both sides equidistance of recess inner wall, logical groove has been seted up at the middle part of fixed block, the inlaying of logical groove has two crossbeams, two four corner equal fixed mounting of crossbeams have a compression spring, two the equal distance in side fixed mounting of crossbeams have a plurality of spliced poles, a plurality of spliced poles pass through the through-hole and are connected with the jack that corresponds, one side rotation of logical inslot inner wall is connected with the connecting axle, the end department of connecting axle is fixed with two-way cam, the both ends of two-way cam and another motor's of car side contact with the servo-shaft of another, the servo-shaft of servo motor is connected through the fixed connection.

Preferably, two sides of the bottom end of the ladder frame are welded with fixing plates, and auxiliary ladders are connected between the four fixing plates in a rotating mode.

Preferably, the fixed orifices have been seted up on the top of supplementary ladder, two the round hole has all been seted up to the bottom of ladder frame, two the inside of round hole is equal fixed mounting has the second extrusion spring, two the equal fixed mounting of one end of second extrusion spring has the fixed column, the fixed column alternates with the fixed orifices that corresponds and is connected.

Preferably, a chute is formed in one side of the round hole, a pushing block is connected to the inside of the chute in a sliding mode, and the pushing block is fixedly connected with the top of one side of the fixed column.

Preferably, the size of the fixing block is matched with the inner diameter of the groove.

Preferably, the servo motor is electrically connected with a fire-fighting truck body power supply through a fire-fighting truck body control switch.

The utility model has the technical effects and advantages that: the servo motor through the installation drives the rotation of connecting axle, drives the rotation of bi-directional cam through the rotation of connecting axle, rotates through bi-directional cam, promotes the removal of diaphragm through the rotation of bi-directional cam, drives the flexible of spliced pole through the removal of diaphragm to realize the connection and the separation of spliced pole and adapter sleeve, replace traditional being connected with fire control carriage through the welding mode, effectually improved the installation and the dismantlement of ladder frame, the convenience carries out timely change to the ladder frame of damage.

Drawings

Fig. 1 is a schematic structural view of a ladder stand of a fire truck according to the present utility model.

Fig. 2 is a schematic diagram of a connection structure between a connection sleeve and a connection column of a ladder stand of a fire truck.

Fig. 3 is a schematic diagram of a connection structure between a ladder frame and an auxiliary ladder of a fire truck ladder stand according to the present utility model.

In the figure: 1. a fire-fighting carriage; 2. a ladder frame; 3. connecting sleeves; 4. a connecting column; 5. a chute; 6. a pushing block; 7. fixing the column; 8. a fixing plate; 9. an auxiliary ladder; 10. a servo motor; 11. a jack; 12. inserting a column; 13. a through hole; 14. a groove; 15. a first pressing spring; 16. a fixed block; 17. a bi-directional cam; 19. a connecting shaft; 20. a round hole; 21. a second pressing spring; 22. and a fixing hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a fire truck ladder stand as shown in fig. 1-3, which comprises a fire truck 1 and two ladder frames 2, wherein two connecting sleeves 3 are fixedly arranged between the top and the bottom of the side surfaces of the fire truck 1, a plurality of insertion holes 11 are formed in the two sides of the inner wall of each connecting sleeve 3 at equal intervals, connecting columns 4 are fixedly arranged at the top and the bottom of each two ladder frames 2, four connecting columns 4 are sleeved with the corresponding connecting sleeves 3 and connected, a fixed block 16 is fixedly arranged in each connecting sleeve 3, a groove 14 is formed in the end position of each connecting column 4, the fixed block 16 is connected with the corresponding groove 14 in an embedding manner, a plurality of through holes 13 are formed in the two sides of the inner wall of each groove 14 at equal intervals, through grooves are formed in the middle of each fixed block 16, two transverse plates are embedded in the through grooves, a first extrusion spring 15 is fixedly arranged at the four corners of each transverse plate, a plurality of inserting columns 12 are fixedly arranged on the side surfaces of each transverse plate at equal intervals, each inserting column 12 penetrates through each through hole 13 and is connected with the corresponding insertion hole 11, one side of the inner wall of each through groove is rotatably connected with a connecting shaft 19, a cam 17 is fixedly arranged at the end position of each connecting shaft 19, a cam 17 is fixedly connected with one end of each cam motor 17 is fixedly contacts with one end 10 of the other through the other, and the other is fixedly connected with one end of a servo motor 10, and is fixedly connected with the other through the other, and has a corresponding servo motor.

The connecting column 4 is sleeved with the connecting sleeve 3, the connecting sleeve 3 is embedded with the groove 14 through the fixing block 16, then the bidirectional cam 17 is driven to move through the rotation of the servo motor 10, the inserting column 12 is extruded through the bidirectional cam 17 to penetrate through the through hole 13 and is embedded with the jack 11, connection of the connecting column 4 and the connecting sleeve 3 is facilitated, and installation and detachment of a cat ladder are facilitated.

According to the illustration of fig. 1, 2 and 3, the both sides of two ladder frames 2 bottom all weld fixed plate 8, rotate between four fixed plates 8 and be connected with supplementary ladder 9, through the setting of supplementary ladder 9, make things convenient for the climbing of fire engine cat ladder.

The fixed orifices 22 have been seted up on the top of supplementary ladder 9, round hole 20 has all been seted up to the bottom of two ladder framves 2, and the equal fixed mounting of inside of two round holes 20 has second extrusion spring 21, and the equal fixed mounting of one end of two second extrusion springs 21 has fixed column 7, and fixed column 7 alternates with corresponding fixed orifices 22 to be connected, promotes the removal of fixed column 7 through second extrusion spring 21, makes fixed column 7 and fixed orifices 22 inlay and establishes.

A chute 5 is formed in one side of the round hole 20, a push block 6 is connected to the inside of the chute 5 in a sliding manner, the push block 6 is fixedly connected with the top of one side of the fixed column 7, and the fixed column 7 is pushed to move through movement of the push block 6.

The size of the fixed block 16 is matched with the inner diameter of the groove 14, and the gap at the joint is reduced and the stability of the connection is improved through the size matching of the fixed block 16 and the groove 14.

The servo motor 10 is electrically connected with a fire-fighting truck body power supply through a fire-fighting truck body control switch, and the work of the servo motor 10 is controlled through the fire-fighting truck body control switch.

The working principle of the utility model is as follows: when the fire truck climbing frame needs to be installed, firstly, the connecting column 4 on the end face of the ladder frame 2 is inserted into the connecting sleeve 3 arranged on the side face of the fire truck carriage 1, when the connecting column 4 is completely inserted, the fixing block 16 inside the connecting sleeve 3 is connected with the groove 14 formed in the end face of the connecting column 4 in an embedded mode, then the servo motor 10 is manually opened through a fire truck control switch, the connecting shaft 19 is driven to rotate through the rotation of the servo motor 10, the bidirectional cam 17 is driven to rotate through the rotation of the connecting shaft 19, the two transverse plates are extruded to separate, the inserting column 12 is driven to move through wind force of the transverse plates, the inserting column 12 penetrates through the through hole 13 to be fixedly inserted into the inserting hole 11, the fixing of the connecting column 4 is completed, the traditional welding mode is replaced, and when the climbing ladder is damaged, the climbing ladder is convenient to replace.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (6)

1. The utility model provides a fire engine cat ladder, includes fire engine (1) and two ladder frames (2), its characterized in that, two adapter sleeves (3) are all fixedly installed between the top and the bottom of fire engine (1) side, a plurality of jacks (11) have been seted up to the inner wall both sides equidistance of adapter sleeve (3), two the top and the bottom of ladder frame (2) are all fixedly equipped with spliced pole (4), four spliced pole (4) are established with corresponding adapter sleeve (3) cover and are connected, the inside of adapter sleeve (3) is fixedly equipped with fixed block (16), recess (14) are seted up in end department of spliced pole (4), fixed block (16) are inlayed and are connected with recess (14), a plurality of through-holes (13) have been seted up to the both sides equidistance of recess (14) inner wall, logical groove has been seted up at the middle part of fixed block (16), two cross plates have been inlayed to the cross-plate, two four corners of cross-plate all fixedly installed first extrusion spring (15), two the side of cross-plate is established with corresponding adapter sleeve (3) cover, the end of connecting post (12) are equipped with a plurality of inserted through-holes (19), two-way connection (19) are connected with the both ends of cam (17) are connected with the both ends of two-way connection of connecting post (19), the fire-fighting truck is characterized in that a servo motor (10) is fixedly arranged in the fire-fighting truck body (1), and an output shaft of the servo motor (10) is fixedly connected with one end of a connecting shaft (19) through a coupler.

2. The fire truck cat ladder according to claim 1, characterized in that two sides of the bottom ends of two ladder frames (2) are welded with fixing plates (8), and auxiliary ladders (9) are rotatably connected between the four fixing plates (8).

3. The fire truck cat ladder according to claim 2, characterized in that the top end of the auxiliary ladder (9) is provided with a fixing hole (22), the bottom ends of the two ladder frames (2) are provided with round holes (20), the inside of the two round holes (20) is fixedly provided with a second extrusion spring (21), one end of the two second extrusion springs (21) is fixedly provided with a fixing column (7), and the fixing column (7) is connected with the corresponding fixing hole (22) in a penetrating mode.

4. A fire truck ladder according to claim 3, characterized in that a chute (5) is provided on one side of the round hole (20), a pushing block (6) is slidably connected in the chute (5), and the pushing block (6) is fixedly connected with the top of one side of the fixed column (7).

5. A fire truck cat ladder according to claim 1, characterized in that the dimensions of the fixed block (16) are matched to the inner diameter of the recess (14).

6. The fire truck cat ladder according to claim 1, characterized in that the servo motor (10) is electrically connected to a fire truck body power supply through a fire truck body control switch.