Convenient-to-adjust side hanging ladder for fire fighting truck

Abstract

The utility model discloses a convenient-to-adjust side hanging ladder for a fire fighting truck, and relates to the technical field of fire fighting equipment. Comprising a fixed seat; the outer wall of the adjusting assembly is in sliding connection with the inner wall of the fixed seat, and the adjusting assembly is used for adjusting the position of the side hanging ladder on the fire fighting truck in a sliding mode; the outer wall of the limiting assembly is in sliding connection with the inner wall of the adjusting assembly, and the limiting assembly is used for changing the position of the hanging ladder on the adjusting assembly in a sliding mode; through arrangement of the adjusting assembly and cooperation of a sliding frame, a positioning column, a top spring and other components in the adjusting assembly, the side hanging ladder can achieve longitudinal position adjustment on the fire fighting truck, an operator can adjust the position of the hanging ladder according to the actual situation of a rescue site, such as the positions of rescue entrances of windows, balconies and the like of different heights of a building, and the rescue efficiency is improved. The purpose of conveniently adjusting the side hanging ladder for the fire fighting truck is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field, concretely relates to a side suspension ladder for fire engine convenient to adjust. BACKGROUND

[0002] In the fire rescue work, the side suspension ladder for fire engine is one of the key equipment for the firefighters to carry out the rescue, and whether it can be flexibly adapted to different rescue scenes directly affects the rescue efficiency and effect, however, the traditional side suspension ladder for fire engine gradually exposes many limitations in the actual use process, and it is difficult to meet the increasingly complex and diverse fire rescue needs.

[0003] The position of the traditional side suspension ladder on the fire engine is mostly fixed, or can only be adjusted in a very limited and simple way, when facing different buildings to carry out rescue, due to the different heights of each building, the positions of the rescue entrances such as windows and balconies are also different, the firefighters need to move horizontally at the top end of the suspension ladder after climbing to the corresponding height using the side suspension ladder with fixed position, in order to reach the rescue entrance and approach the trapped personnel, which not only consumes extra time and physical strength, but also in the emergency fire scene, every second is crucial, such operation is easy to miss the best rescue opportunity, resulting in low rescue efficiency, and even may threaten the life safety of the trapped personnel due to the rescue not in time. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model solves its technical problems by adopting the following technical scheme: a side suspension ladder for fire engine convenient to adjust, comprising: a fixed seat; an adjusting assembly, the outer wall of the adjusting assembly is in sliding connection with the inner wall of the fixed seat, the adjusting assembly is used for adjusting the position of the side suspension ladder on the fire engine in a sliding manner; a limiting assembly, the outer wall of the limiting assembly is in sliding connection with the inner wall of the adjusting assembly, the limiting assembly is used for changing the position of the suspension ladder on the adjusting assembly in a sliding manner; the adjusting assembly comprises a sliding frame, a positioning column is in sliding connection with the bottom of the sliding frame through a fixed block, and the top of the fixed block is fixedly connected with the bottom of the sliding frame, a top spring is fixedly connected with the outer wall of the positioning column through a fixed sheet, and the outer wall of the fixed sheet is fixedly connected with the outer wall of the positioning column.

[0005] Preferably, the side of the top spring away from the positioning column is fixedly connected with the outer wall of the fixed block, the inner wall of the fixed block is in sliding connection with the outer wall of the positioning column, the outer wall of the positioning column is inserted into the inner wall of the fixed seat through a positioning groove, and the positioning groove is arranged in the wall of the fixed seat, and the positioning groove is linearly arrayed along the outer wall of the fixed seat.

[0006] Preferably, the limiting assembly comprises a main frame, a sub-frame is slidably connected to the inner wall of the main frame, a sliding groove corresponding to the sub-frame is formed in the inner wall of the main frame, and the main frame limits the sliding position of the sub-frame, a connecting frame is fixedly connected to the side of the sub-frame away from the main frame, and support plates are symmetrically connected to the outer wall of the connecting frame.

[0007] Preferably, the outer wall of the main frame on both sides is rotatably connected with a toothed clamping piece through a rotating shaft, and a resistance component is fixedly connected to the top of the toothed clamping piece.

[0008] Preferably, the top of the resistance component is slidably connected to the inner wall of a sliding frame, a toothed plate is fixedly connected to the inner wall of the sliding frame, and the toothed plate is clamped with the toothed clamping piece, limit blocks are symmetrically fixedly connected to the top of the main frame, and the bottom of the toothed clamping piece is clamped with the inner wall of the sliding frame.

[0009] The utility model discloses the beneficial effects are as follows:

[0010] 1. The utility model discloses a side-suspended ladder which can be adjusted in longitudinal position on a fire engine through the cooperation of the sliding frame, the positioning column and the top spring in the adjusting assembly, so that the operator can adjust the position of the ladder according to the actual situation of the rescue site, such as the rescue entrance position of the windows or balconies of buildings at different heights, to better align the target, reduce the distance of the firefighter climbing the ladder and then moving horizontally to approach the trapped personnel, save the rescue time and improve the rescue efficiency, especially in the emergency fire rescue scene, the rescue action can be carried out more quickly.

[0011] 2. The utility model discloses a limiting assembly which can drive the toothed clamping piece to slide in the sliding frame under normal conditions, so that the extension state of the ladder is adjusted very conveniently, and the operator can change the length of the ladder only by holding the main frame and sliding, and in the use process, the toothed clamping piece can be automatically clamped and limited by the weight of the firefighter, so that the operation steps are further simplified, the firefighter can adjust the extension degree of the ladder at any time according to the actual situation, the needs of different rescue stages and scenes are met, and the flexibility of the use of the ladder is increased. ACCURATE DRAWINGS

[0012] Figure 1 It is a perspective view of the utility model;

[0013] Figure 2 It is an exploded structural schematic view of the utility model;

[0014] Figure 3 It is an exploded structural schematic view of the adjusting assembly of the utility model;

[0015] Figure 4 It is a structural schematic view of the positioning column of the utility model;

[0016] Figure 5 is the structural schematic diagram of the limiting assembly of the utility model;

[0017] Figure 6 is the structural schematic diagram of the main frame body of the utility model;

[0018] Figure 7 is the structural schematic diagram of the auxiliary frame body of the utility model.

[0019] In the drawing: 1, fixed seat; 2, adjusting assembly; 3, limiting assembly; 21, sliding frame; 22, positioning groove; 23, positioning column; 24, top spring; 25, fixed block; 31, main frame body; 32, auxiliary frame body; 33, connecting frame; 34, resistance component; 35, clamping tooth; 36, limiting block; 37, supporting plate. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0021] Embodiment:

[0022] Please refer to Figure 1 - Figure 7 The utility model provides a kind of technical scheme: a kind of side-suspended ladder for fire engine convenient to adjust, comprising: fixed seat 1;Adjusting assembly 2, the outer wall of adjusting assembly 2 is slidably connected with the inner wall of fixed seat 1, adjusting assembly 2 is used to adjust the position of side-suspended ladder on fire engine by sliding mode;Limiting assembly 3, the outer wall of limiting assembly 3 is slidably connected with the inner wall of adjusting assembly 2, limiting assembly 3 is used to change the position of suspended ladder on adjusting assembly 2 by sliding mode;Adjusting assembly 2 includes sliding frame 21, the bottom of sliding frame 21 is slidably connected with positioning column 23 by fixed block 25, and the top of fixed block 25 is fixedly connected with the bottom of sliding frame 21, fixed block 25 is connected sliding frame 21 and positioning column 23 on one hand, provides space for the sliding of positioning column 23 on the other hand, so that positioning column 23 can slide in the inner wall of fixed block 25, the outer wall of positioning column 23 is fixedly connected with top spring 24 by fixed sheet, the side away from positioning column 23 of top spring 24 is fixedly connected with the outer wall of fixed block 25, the inner wall of fixed block 25 is slidably connected with the outer wall of positioning column 23, the outer wall of positioning column 23 is inserted with the inner wall of fixed seat 1 by positioning groove 22, and positioning groove 22 is opened in the wall of fixed seat 1.

[0023] The limiting assembly 3 comprises a main frame 31, the inner wall of the main frame 31 is slidingly connected with a secondary frame 32, the side, away from the main frame 31, of the secondary frame 32 is fixedly connected with a connecting frame 33, the outer wall of the connecting frame 33 is symmetrically connected with a support plate 37, the outer wall of the main frame 31 on both sides is rotationally connected with a clamping tooth 35, the top of the clamping tooth 35 is fixedly connected with a resistance component 34, the support plates 37 symmetrically connected with the outer wall of the connecting frame 33 are used to support the suspended ladder, so as to ensure that the suspended ladder can stably bear the weight of the firefighters and rescue equipment during use, and can be supported on the ground through the support plates 37, so as to reduce the direct contact between the secondary frame 32 and the ground, and further avoid the secondary frame 32 from being directly hit on the ground, thereby causing damage to the secondary frame 32.

[0024] The top of the resistance component 34 is slidingly connected with the inner wall of the sliding frame 21, the top of the main frame 31 is symmetrically fixedly connected with a limiting block 36, and the bottom of the clamping tooth 35 is clamped with the inner wall of the sliding frame 21. In the normal state, the bottom of the clamping tooth 35 is in a disengaged state with the tooth plate on the inner wall of the sliding frame 21, and the clamping tooth 35 is lifted by the resistance component 34, so that the clamping tooth 35 is away from the tooth plate in the sliding frame 21, so that the main frame 31 can drive the clamping tooth 35 to slide in the sliding frame 21.

[0025] Working principle:

[0026] The side suspended ladder mainly comprises a fixing seat 1, an adjusting assembly 2 and a limiting assembly 3, and each part cooperates with each other, so that the side suspended ladder can be flexibly adjusted in position on the fire truck and the extension state of the suspended ladder itself according to the actual use requirement, so as to better adapt to different rescue scenes and facilitate the firefighters to perform the climbing rescue operation.

[0027] The adjusting assembly 2 plays a key role in adjusting the position in the whole structure of the side suspended ladder, and mainly comprises a sliding frame 21, a positioning column 23, a top spring 24 and a fixed block 25.

[0028] The sliding frame 21 serves as a main bearing structure, the bottom of the sliding frame 21 is connected with the positioning column 23 through the fixed block 25, the fixed block 25 serves to connect the sliding frame 21 and the positioning column 23 on one hand, and provides a space for the sliding of the positioning column 23 on the other hand, so that the positioning column 23 can slide in the inner wall of the fixed block 25, the outer wall of the positioning column 23 is connected with the top spring 24 through a fixed sheet, and the side, away from the positioning column 23, of the top spring 24 is fixed with the outer wall of the fixed block 25. In the initial state, the top spring 24 is in a certain extension state, and exerts a corresponding elastic force on the positioning column 23.

[0029] The outer wall of the positioning column 23 is also inserted with the inner wall of the fixed seat 1 through the positioning groove 22, and the positioning groove 22 is opened in the wall of the fixed seat 1. When it is necessary to adjust the position of the side-suspended ladder on the fire truck, the operator applies an external force to the sliding frame 21, and the sliding frame 21 drives the fixed block 25 and the positioning column 23 to move together. It should be noted that before sliding the sliding frame 21, the positioning columns 23 on both sides need to be slid away from the positioning groove 22, so as to release the restriction of the fixed seat 1. After the sliding of the position of the sliding frame 21 is completed, the tension on the positioning column 23 is only released. Because the top spring 24 is compressed accordingly with the sliding of the positioning column 23, the elastic potential energy of the top spring 24 is released, and the positioning column 23 is pushed to slide into the positioning groove 22 again, so as to re-lock the position of the sliding frame 21. The sliding frame 21 can slide along the inner wall of the fixed seat 1, thereby realizing the adjustment of the longitudinal position of the side-suspended ladder on the fire truck, so as to better align the target position of the rescue site, such as the window, balcony or other suitable rescue entrances of the building, to facilitate the subsequent firefighters to climb the ladder to carry out rescue work.

[0030] The limiting assembly 3 is mainly responsible for changing the position of the ladder on the adjusting assembly 2, thereby adjusting the extension state of the ladder itself. It is composed of a main frame 31, a secondary frame 32, a connecting frame 33, a clamping tooth 35, a resistance component 34, a limiting block 36, and a support plate 37.

[0031] The main frame 31 serves as the basic frame structure, and its inner wall is in sliding connection with the secondary frame 32. The secondary frame 32 can slide in and out of the main frame 31 to change the length of the entire limiting assembly 3, thereby adjusting the extension degree of the ladder. The side of the secondary frame 32 away from the main frame 31 is fixedly connected with the connecting frame 33. The support plates 37 symmetrically connected to the outer wall of the connecting frame 33 are used to support the ladder, ensuring that the ladder can stably bear the weight of firefighters and rescue equipment during use and can be supported on the ground through the support plates 37, thereby reducing the direct contact of the secondary frame 32 with the ground and avoiding direct impact of the secondary frame 32 on the ground, which may cause damage to the secondary frame 32.

[0032] The outer wall of the main frame 31 on both sides is rotatably connected to the clamping tooth 35 through a rotating shaft. The main frame 31 can rotate in angle around the rotating shaft. The top of the clamping tooth 35 is fixedly connected with the resistance component 34, and the top of the resistance component 34 is in sliding connection with the inner wall of the sliding frame 21. The outer wall of the clamping tooth 35 is also in sliding connection with the inner wall of the sliding frame 21. In the normal state, the bottom of the clamping tooth 35 is in disengaged state with the tooth plate on the inner wall of the sliding frame 21. The clamping tooth 35 is lifted by the resistance component 34, so that the clamping tooth 35 is away from the tooth plate in the sliding frame 21, and the main frame 31 can drive the clamping tooth 35 to slide in the sliding frame 21, so that the limiting assembly 3 can slide in the normal state, ensuring the adjustability of the ladder.

[0033] When it is necessary to adjust the extension position of the cantilever ladder, the operator holds the main frame 31 and slides it away from the sliding frame 21, so that the main frame 31 slides in the sliding frame 21, driving the sub-frame 32 and the connecting frame 33 and other components to move together, thereby adjusting the extension position of the cantilever ladder. After the sub-frame 32 in the main frame 31 slides out, the operator only needs to keep the position of the main frame 31. When the firefighters use the main frame 31 and the sub-frame 32 to climb, the weight of the firefighters is used to make the force of the clamping teeth 35 downward exceed the resistance of the resistance component 34, so that the clamping teeth 35 are clamped on the tooth plate, and the position of the clamping teeth 35 is limited by the tooth plate. The limiting block 36 is connected to the main frame 31 and the sub-frame 32. After the main frame 31 and the sub-frame 32 are retracted into the sliding frame 21, the limiting block 36 is clamped on the positioning block of the sliding frame 21, thereby limiting the position of the main frame 31 and the sub-frame 32.

[0034] In actual fire rescue scenarios, first, according to the actual situation of the rescue site, such as the height of the building, the position of the rescue entrance, etc., the operator operates the adjusting assembly 2, pushes the sliding frame 21 to slide in the fixed seat 1, adjusts the longitudinal position of the side cantilever ladder on the fire truck, and roughly aligns the cantilever ladder with the target rescue position.

[0035] Then, according to the appropriate length required by the firefighters to climb the cantilever ladder and the convenience of the specific rescue operation, etc., the operator operates the limiting assembly 3, slides the main frame 31 in the sliding frame 21, drives the sub-frame 32 to extend or retract, thereby changing the extension state of the cantilever ladder, adjusting the cantilever ladder to the appropriate length, and facilitating the firefighters to smoothly climb and approach the trapped personnel or the rescue target.

[0036] During the entire adjustment process, the adjusting assembly 2 relies on the positioning column 23, the top spring 24 and other components to realize stable position movement, and the limiting assembly 3 flexibly controls the extension position of the cantilever ladder through the cooperation of the clamping teeth 35 and the resistance component 34. The components work together to ensure that the side cantilever ladder can be stably adjusted in place, provide convenience for fire rescue work, and meet the climbing rescue needs in different scenarios.

[0037] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A side mount aerial for a fire apparatus, the aerial comprising: Include: Fixed seat (1); Adjusting assembly (2), the outer wall of the adjusting assembly (2) is in sliding connection with the inner wall of the fixed seat (1), the adjusting assembly (2) is used for adjusting the position of the side suspension ladder on the fire truck by sliding; Limiting assembly (3), the outer wall of the limiting assembly (3) is in sliding connection with the inner wall of the adjusting assembly (2), the limiting assembly (3) is used for changing the position of the suspension ladder on the adjusting assembly (2) by sliding; The adjusting assembly (2) comprises a sliding frame (21), the bottom of the sliding frame (21) is in sliding connection with a positioning column (23) through a fixed block (25), and the top of the fixed block (25) is fixedly connected with the bottom of the sliding frame (21), the outer wall of the positioning column (23) is fixedly connected with a top spring (24) through a fixed sheet.

2. A side mount ladder for a fire apparatus according to claim 1, wherein: The side, away from the positioning column (23), of the top spring (24) is fixedly connected with the outer wall of the fixed block (25), the inner wall of the fixed block (25) is in sliding connection with the outer wall of the positioning column (23), the outer wall of the positioning column (23) is inserted with the inner wall of the fixed seat (1) through a positioning groove (22), and the positioning groove (22) is arranged in the wall of the fixed seat (1).

3. A conveniently adjustable side-hanging ladder for a fire fighting truck according to claim 1, characterized in that: The limiting assembly (3) comprises a main frame (31), the inner wall of the main frame (31) is in sliding connection with a secondary frame (32), the side, away from the main frame (31), of the secondary frame (32) is fixedly connected with a connecting frame (33), and the outer wall of the connecting frame (33) is symmetrically connected with a supporting plate (37).

4. A side mount ladder for a fire apparatus according to claim 3, wherein: The outer wall of the main frame (31) on both sides is rotatably connected with a toothed clamping (35) through a rotating shaft, and the top of the toothed clamping (35) is fixedly connected with a resistance component (34).

5. A conveniently adjustable side-hanging ladder for a fire fighting truck according to claim 4, characterized in that: The top of the resistance component (34) is in sliding connection with the inner wall of the sliding frame (21), and the top of the main frame (31) is fixedly connected with a limiting block (36) symmetrically.

6. A side mount aerial for a fire apparatus with easy adjustment as defined in claim 4 wherein: The bottom of the toothed clamping (35) is clamped with the inner wall of the sliding frame (21).

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