Fire-fighting climbing ladder

Abstract

The utility model discloses a fire-fighting climbing ladder, which relates to the fire-fighting field, and comprises climbing ladder side plates and pedals, a plurality of pedals are fixedly connected between the two climbing ladder side plates, the outer sides of the bottom ends of the climbing ladder side plates are respectively provided with a support ring in a limiting and sliding manner, and the bottom ends of the climbing ladder side plates are provided with storage grooves. Connecting plates are slidably mounted in the storage grooves in a limiting mode, rolling wheels are mounted at the bottom ends of the connecting plates, and linkage assemblies are arranged between the connecting plates and the storage grooves. When in use, the storage groove, the connecting plate, the gear, the first toothed plate, the second toothed plate and the limiting rod are arranged; when the climbing ladder is used, the rollers can be stored in the storage grooves and separated from the ground by pressing the side plates of the climbing ladder, meanwhile, the supporting rings automatically move downwards to make the lower end faces of the supporting rings make contact with the ground, the stability of the climbing ladder is improved, operation is easy during use, the working states of the supporting rings and the rollers are rapidly switched, and the fire fighting working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fire control, especially a fire fighting climbing ladder. BACKGROUND

[0002] When the firemen extinguish the fire, rescue and train, the fire ladder is a tool for climbing or obstacle crossing, and plays an important role in fire rescue, assisting the firemen to quickly enter the high-rise building, when the firemen arrive at the scene for rescue, according to the height of the affected floor, the climbing ladder needs to be used to climb to the floor to extinguish the flame and rescue and evacuate the personnel, the current fire climbing ladder is usually divided into single section and multiple sections, the commonly used is single section and two section ladders, which are more portable and convenient to use flexibly, the fire ladder is usually placed on the fire truck when on duty, and the fireman takes down the fire ladder after arriving at the scene.

[0003] The climbing ladder disclosed in Chinese patent CN221742467U includes a climbing ladder, the climbing ladder includes two side plates and a plurality of stepping rods, the plurality of stepping rods are fixedly connected between the two side plates, a rotating shaft is rotatably connected between the two side plates, two support rings are fixedly connected to the side wall of the rotating shaft, two support plates are fixedly connected to one side of the two support rings, the support plates are not in contact with the two side plates, two lugs are fixedly connected to the other side of the two support rings, and rollers are rotatably connected to the inner walls of the two lugs.

[0004] The above-mentioned existing climbing ladder, when in use, rotates the driving disc to drive the corresponding transmission shaft to rotate, the transmission shaft drives the other transmission shaft to rotate synchronously through the transmission belt, so that the transmission shaft can drive the rotating shaft to rotate, and then the support plate or the roller can realize the switching of the working state. However, the adjustment operation process of the support plate is still relatively cumbersome, the support plate and the roller cannot realize the quick switching of the working state, and the fire efficiency is reduced.

[0005] To solve the above-mentioned problems, the utility model provides a fire climbing ladder. CONTENT OF UTILITY MODEL

[0006] To solve the problems in the background art, the utility model provides a fire climbing ladder.

[0007] In order to achieve the above object, the utility model provides following technical scheme: a fire-fighting climbing ladder, including the climbing ladder side plate and the pedal, a plurality of pedals are fixedly connected between two climbing ladder side plates, the bottom outside of the climbing ladder side plate is limit sliding installation with the support ring, the bottom of the climbing ladder side plate is equipped with the storage groove, the inside of the storage groove is limit sliding installation with the connecting plate, the bottom of the connecting plate is installed with the gyro wheel, the connecting plate with the storage groove is provided with linkage assembly, and the linkage assembly includes gear, first toothed plate and second toothed plate.

[0008] The utility model further sets up, the side wall of the climbing ladder side plate is equipped with the communicating groove, the inside of the communicating groove is slidingly installed with the connecting block, one end of the connecting block is fixed with the connecting plate, and the other end of the connecting block is fixedly connected with the bottom of the first toothed plate.

[0009] The utility model further sets up, the side wall of the climbing ladder side plate is equipped with the guide groove, and the second toothed plate is slidingly installed in the guide groove.

[0010] The utility model further sets up, the support ring is equipped with a plurality of antiskid strips on the position of the first toothed plate, and the bottom surface of the support ring is fixedly connected with the plurality of antiskid strips.

[0011] The utility model further sets up, the inside top of the storage groove is fixedly installed with the telescopic link, the telescopic end of the telescopic link is fixedly connected with the upper end surface of the connecting plate, the outside of the telescopic link is equipped with the first spring, one end of the first spring is fixedly connected with the inside top of the storage groove, and the other end of the first spring is fixedly connected with the upper end surface of the connecting plate.

[0012] The utility model further sets up, the side wall of the climbing ladder side plate is limit sliding installation with the limiting rod, one end of the limiting rod close to the connecting plate is inclined surface setting, the side wall of the connecting plate is equipped with the limiting hole, and the limiting rod is inserted with the limiting hole.

[0013] The utility model further sets up, one end of the limiting rod away from the connecting plate is fixedly connected with the pull plate, the outside of the limiting rod is equipped with the second spring, one end of the second spring is fixedly connected with the pull plate, and the other end of the second spring is fixedly connected with the side wall of the climbing ladder side plate.

[0014] The utility model further sets up, the front side of the climbing ladder side plate is fixedly installed with the handle.

[0015] Beneficial effects

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The fire climbing ladder, through the setting up receiving groove, connecting plate, gear, first toothed plate, second toothed plate and limiting rod, the climbing ladder side plate is pressed down, the roller is received in the receiving groove and is separated from the ground, the supporting ring is automatically moved downwards and the lower end surface is contacted with the ground, the stability of the climbing ladder is improved, the operation is simple during use, the working state of the supporting ring and the roller is quickly switched, and the fire working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further explained below by combining with the drawings and embodiments:

[0019] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0020] Fig. 2 It is the local structure schematic diagram of the utility model;

[0021] Fig. 3 It is the local sectional structure schematic diagram of the utility model.

[0022] Reference signs: 1, climbing ladder side plate, 2, pedal, 3, supporting ring, 4, receiving groove, 5, connecting plate, 6, gear, 7, first toothed plate, 8, second toothed plate, 9, roller, 10, communicating groove, 11, connecting block, 12, guide groove, 13, let go of slot, 14, antiskid strip, 15, telescopic rod, 16, first spring, 17, limiting rod, 18, limiting hole, 19, pull plate, 20, second spring, 21, handle. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0025] In the utility model, unless otherwise stated, the orientation such as "up, down" is generally for the direction shown in the drawings, or for the vertical, perpendicular or gravity direction. Similarly, for the convenience of understanding and description, "left, right" is generally for the left and right shown in the drawings. "Inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0026] Please refer to Figs. 1-3The utility model provides a technical scheme: a fire-fighting climbing ladder, including the climbing ladder side plate 1 and the pedal 2, a plurality of pedals 2 are fixedly connected between two climbing ladder side plates 1, and the front side of the climbing ladder side plate 1 is fixedly installed with handle 21. Through holding handle 21, it is convenient to move the climbing ladder.

[0027] The bottom end outside of the climbing ladder side plate 1 is limitingly slidably installed with the support ring 3, and the bottom end of the climbing ladder side plate 1 is provided with the storage groove 4.

[0028] The inside of the storage groove 4 is limitingly slidably installed with the connecting plate 5, the inside top end of the storage groove 4 is fixedly installed with the telescopic rod 15, the telescopic end of the telescopic rod 15 is fixedly connected with the upper end surface of the connecting plate 5, the outside of the telescopic rod 15 is sleeved with the first spring 16, one end of the first spring 16 is fixedly connected with the inside top surface of the storage groove 4, and the other end of the first spring 16 is fixedly connected with the upper end surface of the connecting plate 5. The sidewall of the climbing ladder side plate 1 is limitingly slidably installed with the limiting rod 17, one end of the limiting rod 17 close to the connecting plate 5 is provided with an inclined surface, the sidewall of the connecting plate 5 is provided with the limiting hole 18, and the limiting rod 17 is insertedly connected with the limiting hole 18. One end of the limiting rod 17 away from the connecting plate 5 is fixedly connected with the pull plate 19, the outside of the limiting rod 17 is sleeved with the second spring 20, one end of the second spring 20 is fixedly connected with the pull plate 19, and the other end of the second spring 20 is fixedly connected with the sidewall of the climbing ladder side plate 1. When the fire-fighting work is finished, the pull plate 19 is pulled to drive the limiting rod 17 to be separated from the inside of the limiting hole 18, so that the telescopic rod 15 and the first spring 16 restore the original state to drive the connecting plate 5 to move downwards, and then the roller 9 is moved to the outside of the storage groove 4 and contacts the ground, and the support ring 3 is moved upwards to be separated from the ground.

[0029] The bottom end of the connecting plate 5 is installed with the roller 9, and the connecting plate 5 and the storage groove 4 are provided with a linkage assembly, and the linkage assembly comprises a gear 6, a first toothed plate 7 and a second toothed plate 8.

[0030] The gear 6 is rotatably installed on the sidewall of the climbing ladder side plate 1, and the sidewall of the climbing ladder side plate 1 is slidably provided with the first toothed plate 7 and the second toothed plate 8 on the two sides corresponding to the gear 6. The first toothed plate 7 and the second toothed plate 8 are all in meshing connection with the gear 6, the bottom end of the first toothed plate 7 is fixedly connected with the connecting plate 5, and the bottom end of the second toothed plate 8 is fixedly connected with the support ring 3. Specifically, the sidewall of the climbing ladder side plate 1 is provided with the communicating groove 10, the inside of the communicating groove 10 is slidably installed with the connecting block 11, one end of the connecting block 11 is fixedly connected with the connecting plate 5, and the other end of the connecting block 11 is fixedly connected with the bottom end of the first toothed plate 7. The sidewall of the climbing ladder side plate 1 is provided with the guide groove 12, and the second toothed plate 8 is slidably installed in the guide groove 12.

[0031] The support ring 3 is provided with the accommodation groove 13 at the position corresponding to the first toothed plate 7, and the accommodation groove 13 facilitates the first toothed plate 7 to move up and down.

[0032] In the embodiment of the utility model, the lower end surface of the supporting ring 3 is fixedly connected with a plurality of anti-skid strips 14. The anti-skid strips 14 are arranged to increase the friction between the supporting ring 3 and the ground, thereby improving the stability of the ladder.

[0033] It should be noted that the protective cover is fixedly installed on the side wall of the ladder side plate 1 at positions corresponding to the first toothed plate 7 and the second toothed plate 8, thereby improving the stability of the transmission of the gear 6 and the two toothed plates.

[0034] Working principle:

[0035] In use, as shown in the supporting ring 3 in the initial state, the roller 9 is located outside the storage groove 4, and the firefighter moves the ladder by holding the handle 21 and cooperating with the roller 9, thereby reducing the working strength of the firefighter and saving physical strength.

[0036] After the ladder is moved to the use position, the ladder side plate 1 is pressed downward, the roller 9 and the connecting plate 5 are moved to the upper part inside the storage groove 4, the telescopic rod 15 and the first spring 16 are retracted, in this process, the connecting plate 5 moves upward to drive the first toothed plate 7 to move upward through the connecting block 11, the first toothed plate 7 moves upward to engage with the gear 6, thereby driving the gear 6 to rotate, the gear 6 rotates to engage with the second toothed plate 8, thereby driving the second toothed plate 8 to move downward, the second toothed plate 8 moves downward in the guide groove 12 to drive the supporting ring 3 to move downward, so that the supporting ring 3 gradually moves to the bottom end of the ladder side plate 1, when the connecting plate 5 moves upward to contact the limiting rod 17, the limiting rod 17 is pushed to slide away from the telescopic rod 15 through the inclined surface of the limiting rod 17, and the second spring 20 is elongated, when the limiting hole 18 on the connecting plate 5 corresponds to the limiting rod 17, the second spring 20 returns to the original state to drive the limiting rod 17 into the limiting hole 18, thereby limiting the connecting plate 5, so that the roller 9 is stored in the storage groove 4 and separated from the ground, at this time, the lower end surface of the supporting ring 3 contacts the ground, thereby improving the stability of the ladder, and the operation is simple in use, and the ladder side plate 1 can be pressed downward to complete the operation.

[0037] When the fire fighting work is completed, the limiting plate 19 is pulled to drive the limiting rod 17 to separate from the inside of the limiting hole 18, so that the telescopic rod 15 and the first spring 16 return to the original state to drive the connecting plate 5 to move downward, thereby moving the roller 9 to the outside of the storage groove 4 to contact the ground, and moving the supporting ring 3 upward to separate from the ground.

[0038] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A fire-fighting ladder, comprising a ladder side plate (1) and a step (2), a plurality of steps (2) are fixedly connected between two ladder side plates (1), characterized in that: The outer side of the bottom end of the ladder side plate (1) is limited to slide and install a support ring (3), the bottom end of the ladder side plate (1) is provided with a receiving groove (4), the inside of the receiving groove (4) is limited to slide and install a connecting plate (5), the bottom end of the connecting plate (5) is installed with a roller (9), a linkage assembly is arranged between the connecting plate (5) and the receiving groove (4), the linkage assembly comprises a gear (6), a first toothed plate (7) and a second toothed plate (8); the gear (6) is rotatably installed on the side wall of the ladder side plate (1), the first toothed plate (7) and the second toothed plate (8) are slidably arranged on the two sides of the gear (6) on the side wall of the ladder side plate (1) respectively, the first toothed plate (7) and the second toothed plate (8) are in meshing connection with the gear (6), the bottom end of the first toothed plate (7) is fixedly connected with the connecting plate (5), and the bottom end of the second toothed plate (8) is fixedly connected with the support ring (3).

2. A fire escape ladder according to claim 1, characterised in that: A communication groove (10) is formed in the side wall of the ladder side plate (1), and a connecting block (11) is slidably installed in the communication groove (10); one end of the connecting block (11) is fixedly connected with the connecting plate (5), and the other end of the connecting block (11) is fixedly connected with the bottom end of the first toothed plate (7).

3. The fire fighter's extension ladder of claim 1 wherein: A guide groove (12) is formed in the side wall of the ladder side plate (1), and the second toothed plate (8) is slidably installed in the guide groove (12).

4. The fire fighter's extension ladder of claim 1 wherein: A gap groove (13) is formed in the support ring (3) at a position corresponding to the first toothed plate (7), and a plurality of anti-skid strips (14) are fixedly connected to the lower end face of the support ring (3).

5. The fire fighter's extension ladder of claim 1 wherein: A telescopic rod (15) is fixedly installed at the top end of the receiving groove (4), the telescopic end of the telescopic rod (15) is fixedly connected with the upper end face of the connecting plate (5), a first spring (16) is sleeved outside the telescopic rod (15), one end of the first spring (16) is fixedly connected with the inner top face of the receiving groove (4), and the other end of the first spring (16) is fixedly connected with the upper end face of the connecting plate (5).

6. The fire fighter's extension ladder of claim 1 wherein: A limiting rod (17) is limited to slide and installed on the side wall of the ladder side plate (1), one end of the limiting rod (17) close to the connecting plate (5) is provided in an inclined surface, a limiting hole (18) is formed in the side wall of the connecting plate (5), and the limiting rod (17) is inserted and matched with the limiting hole (18).

7. A fire escape ladder according to claim 6 wherein: One end of the limiting rod (17) away from the connecting plate (5) is fixedly connected with a pull plate (19), a second spring (20) is sleeved outside the limiting rod (17), one end of the second spring (20) is fixedly connected with the pull plate (19), and the other end of the second spring (20) is fixedly connected with the side wall of the ladder side plate (1).

8. The fire fighter's extension ladder of claim 1 wherein: Handles (21) are fixedly installed on the front side of the ladder side plate (1).

Images