CN219451997U - Folding type escalator of fire truck - Google Patents

Abstract

The application relates to a folding type fire truck escalator and belongs to the field of fire truck escalators. The auxiliary ladder is hinged with an auxiliary ladder, a limiting rod is fixedly connected to the main ladder, a hook is arranged on the auxiliary ladder, and the auxiliary ladder is connected with the limiting rod in a clamping mode through a locking assembly. The application has the effect of facilitating firefighters to climb carriages.

Description

Folding type escalator of fire truck

Technical Field

The application relates to the field of fire engine escalators, in particular to a folding escalator for a fire engine.

Background

Firefighters often need to climb to the top of the carriage of the fire engine to operate in the working process, and an escalator for the firefighters to climb the carriage is usually arranged on the carriage of the fire engine. Because the carriage of the fire engine is always higher from the ground, in order to enable the fire engine to adapt to more complicated road conditions, the escalator of the fire engine is always far away from the ground, the condition that the escalator collides with the bottom surface is reduced, and a plurality of inconveniences are caused to a process of climbing the carriage by a fire fighter.

Disclosure of Invention

For the convenience firemen climb the carriage, the application provides a fire engine folding escalator.

The application provides a fire engine folding type staircase adopts following technical scheme:

the utility model provides a folding staircase of fire engine, includes the main ladder of fixed connection on the carriage, it has vice ladder to articulate on the main ladder, fixedly connected with gag lever post on the main ladder, be provided with the couple on the vice ladder, vice ladder passes through locking component control the couple with gag lever post joint.

Through adopting above-mentioned technical scheme, under the initial condition, vice ladder upwards overturns to with main ladder butt for vice ladder is close to each other with the gag lever post on the main ladder, then the operator passes through the gag lever post on the fixed main ladder of locking component, makes vice ladder keep turning over the folding state. When an operator needs to climb the fire truck through the main ladder to perform fire-fighting work, the operator releases the locking effect of the locking assembly on the limiting rod, so that the operator turns down the auxiliary ladder, the transition between the main ladder and the ground is realized, and the operator can climb on the fire truck conveniently.

Optionally, the auxiliary ladder is hinged to the main ladder through a rotating shaft, the rotating shaft is fixedly connected to the main ladder, and a waist-shaped hole for the sliding and penetrating of the rotating shaft is formed in one end of the auxiliary ladder.

By adopting the technical scheme, when the auxiliary ladder is in an upward folding state, the rotating shaft is positioned at one end of the kidney-shaped hole far away from the end part of the auxiliary ladder, and the auxiliary ladder cannot be turned at the moment; when an operator needs to overturn the auxiliary ladder downwards and unfold the auxiliary ladder, the operator needs to move the auxiliary ladder upwards first, so that the rotating shaft moves to a position of the kidney-shaped hole, which is close to the end part of the auxiliary ladder, and the operator can overturn the auxiliary ladder. By the mode, stability of the auxiliary ladder in the folded state is improved.

Optionally, the locking subassembly including articulated in link on the vice ladder, the couple set up in on the link, the link with be provided with first extension spring between the vice ladder, first extension spring pulling the link, and drive the couple with gag lever post joint.

Through adopting above-mentioned technical scheme, the operator turns over the auxiliary ladder to with main ladder butt back, and the operator needs to overcome the elasticity effect upset connecting rod of first extension spring, then moves auxiliary ladder downwardly for couple and spacing joint realize fixing between auxiliary ladder and the main ladder, make auxiliary ladder keep turning over the state.

Optionally, fixedly connected with is used for the butt on the connecting rod the limiting plate of vice ladder, the articulated shaft of connecting rod is located the limiting plate with between the couple, first extension spring pulling the connecting rod drives the limiting plate butt in on the vice ladder, the couple keep away from one side of connecting rod be provided with be used for with the inclined plane of gag lever post butt, the inclined plane is kept away from the one end of connecting rod towards vice ladder slope.

Through adopting above-mentioned technical scheme, the operator sets up the limiting plate on the connecting rod for limiting the flip angle of connecting rod, under the initial state, first extension spring pulling connecting rod makes limiting plate and vice ladder butt. When an operator upwards overturns the auxiliary ladder to be abutted with the main ladder, the inclined plane of the hook is aligned with the limiting rod, the operator downwards moves the auxiliary ladder, the rotating shaft moves in the kidney-shaped hole, the hook moves towards the direction of the limiting rod, the limiting rod is abutted with the inclined plane in the process, the auxiliary ladder continuously downwards moves, the limiting rod applies thrust to the inclined plane, the hook is enabled to overcome the elastic action of the first tension spring to overturn, when the limiting rod moves into the hook, the hook resets under the elastic action of the first tension spring, the hook is enabled to be clamped with the limiting rod, the limiting effect between the limiting rod and the hook is achieved, and then the position of the auxiliary ladder on the main ladder is fixed.

Optionally, a sleeve is sleeved on the limiting rod, and the sleeve is rotationally connected to the limiting rod.

Through adopting above-mentioned technical scheme, the sleeve rotates to be connected on the gag lever post for when sleeve promotes the inclined plane upset, rolling friction replaces sliding friction between sleeve and the inclined plane, reduces the drag that the gag lever post inserts the couple in-process needs overcome.

Optionally, the connecting rod is provided with the slider that slides on, be provided with the slot on the slider, fixedly connected with on the auxiliary ladder is used for inserting the pothook of slot, fixedly connected with is used for promoting on the connecting rod the slider is towards the spring that the pothook removed.

Through adopting above-mentioned technical scheme, when vice ladder and main ladder butt, and couple and gag lever post cooperation, the spring is exerted the thrust towards the pothook to the slider for slot and the mutual joint of pothook, and then restriction connecting rod upset, make couple and gag lever post keep the state of mutual joint, reduce the unexpected upset of connecting rod and lead to the condition of vice ladder upset, when the operator needs the upset connecting rod, then need remove the slider, make slot and pothook break away from each other.

Optionally, fixedly connected with articulated seat on the connecting rod, the couple articulated in on the articulated seat, fixedly connected with branch on the couple, offer on the articulated seat and be used for supplying the arc groove that branch slided, offer on the articulated seat and be used for holding the holding tank of couple, the connecting rod with fixedly connected with second extension spring between the couple, the second extension spring is used for the pulling the couple stretches out the holding tank.

Through adopting above-mentioned technical scheme, the operator turns over vice ladder on for vice ladder and main ladder butt, then the operator moves down vice ladder, and this in-process gag lever post promotes the inclined plane, and makes the couple overcome the elasticity effect upset of second extension spring, in the gag lever post removes to the couple, the couple resets under the elasticity effect of second extension spring for couple and gag lever post joint realize fixing between vice ladder and the main ladder.

Optionally, an elastic pad for abutting against the main ladder is fixedly connected to the auxiliary ladder.

Through adopting above-mentioned technical scheme, fixed connection elastic pad on vice ladder reduces the circumstances that collides with and cause mutual wearing and tearing between vice ladder and the main ladder.

In summary, the present application includes at least one of the following beneficial technical effects: the auxiliary ladder is turned upwards to be folded and abutted with the main ladder, and then the auxiliary ladder is clamped with the limiting rod through the hanging hook, so that the auxiliary ladder is kept in a folded state, when an operator needs to climb the carriage, the operator can control the hanging hook to be separated from the limiting rod through the turning connecting rod, so that the operator turns down the auxiliary ladder, the transition between the main ladder and the ground is realized, and the operator can climb on the fire truck conveniently.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present application.

Fig. 2 is a schematic structural view of an embodiment of the present application for embodying a main ladder and a sub ladder.

Fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Fig. 4 is an enlarged schematic view of a portion B in fig. 2.

Reference numerals illustrate: 1. a carriage; 11. a main ladder; 12. an auxiliary ladder; 13. an elastic pad; 14. a rotating shaft; 15. waist-shaped holes; 16. a limit rod; 17. a sleeve; 2. a locking assembly; 21. a connecting rod; 22. a hinge shaft; 23. a hinge base; 24. a hook; 25. a receiving groove; 26. an inclined plane; 3. a support plate; 31. an arc-shaped groove; 32. a support rod; 33. a second tension spring; 34. a cantilever; 4. a limiting plate; 41. a first tension spring; 42. a slide block; 43. a spring; 44. a handle; 45. a wing plate; 46. a slot; 47. and (5) clamping hooks.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a fire engine folding type escalator. As shown in fig. 1 and 2, the fire truck folding type escalator includes a main ladder 11 fixedly connected to a fire truck compartment 1, and a length direction of the main ladder 11 is parallel to a height direction of the compartment 1. An auxiliary ladder 12 is arranged on one side of the main ladder 11, which is away from the carriage 1, and elastic pads 13 used for being abutted with the main ladder 11 are fixedly connected to two sides of the auxiliary ladder 12. The lower end of the main ladder 11 is fixedly connected with a rotating shaft 14, one end of the auxiliary ladder 12 is provided with a waist-shaped hole 15 for the rotating shaft 14 to penetrate, and the length direction of the waist-shaped hole 15 is parallel to the length direction of the auxiliary ladder 12. The end of the kidney-shaped hole 15 near the end of the auxiliary ladder 12 is denoted as the E end, and the end of the kidney-shaped hole 15 near the middle position of the auxiliary ladder 12 is denoted as the F end, and when the operator moves the auxiliary ladder 12 so that the rotating shaft 14 is positioned at the E end of the kidney-shaped hole 15, the auxiliary ladder 12 can be turned around the rotating shaft 14. When the auxiliary ladder 12 is turned up to be in contact with the main ladder 11, the auxiliary ladder 12 is in a folded and stored state, and at this time, the length direction of the auxiliary ladder 12 is parallel to the length direction of the main ladder 11; when the auxiliary ladder 12 is turned down to contact with the main ladder 11, the auxiliary ladder 12 is in an unfolded state, and the longitudinal direction of the auxiliary ladder 12 is also parallel to the longitudinal direction of the main ladder 11

As shown in fig. 2 and 3, a limiting rod 16 is fixedly connected to the main ladder 11, the axial direction of the limiting rod 16 is parallel to the width direction of the main ladder 11, and a sleeve 17 is coaxially and rotatably connected to the limiting rod 16. The end of the auxiliary ladder 12 far away from the kidney-shaped hole 15 is provided with a locking component 2 for fixing the limiting rod 16, the locking component 2 comprises a connecting rod 21, the connecting rod 21 is hinged on the auxiliary ladder 12 through a hinge shaft 22, and the hinge shaft 22 is positioned at a position close to the middle of the connecting rod 21. One end of the connecting rod 21 facing the kidney-shaped hole 15 is fixedly connected with a hinge seat 23, a hook 24 is hinged on the hinge seat 23, a containing groove 25 for containing the hook 24 is formed in the hinge seat 23, and an operator can enable the hook 24 to retract into the containing groove 25 by overturning the hook 24. The hook 24 is provided with a slope 26 on a side away from the link 21, and the slope 26 is inclined toward the auxiliary ladder 12 on a side close to the link 21.

As shown in fig. 3 and 4, the hinge seat 23 is fixedly connected with a support plate 3, the support plate 3 is provided with an arc groove 31, the central axis of the arc groove 31 is collinear with the rotation axis of the hook 24, the hook 24 is fixedly connected with a support rod 32, and the support rod 32 is slidably arranged in the arc groove 31. The two ends of the arc-shaped groove 31 are respectively marked as an N end and an M end, when the supporting rod 32 is positioned at the N end, the hook 24 is used for being clamped with the limiting rod 16, and when the supporting rod 32 is positioned at the M end, the hook 24 is embedded into the accommodating groove 25. The cantilever 34 is fixedly connected to the hook 24, a second tension spring 33 is connected between the cantilever 34 and the connecting rod 21, and the cantilever 34 is pulled by the second tension spring 33, so that the supporting rod 32 is located at the N end of the arc-shaped groove 31.

One end of the connecting rod 21, which is far away from the hook 24, is fixedly connected with the limiting plate 4, a first tension spring 41 is fixedly connected between one end of the connecting rod 21, which is close to the limiting plate 4, and the auxiliary ladder 12, and the first tension spring 41 is used for pulling the connecting rod 21 to overturn, so that the limiting plate 4 is abutted against one side, which is far away from the main ladder 11, of the auxiliary ladder 12. When the limit plate 4 abuts against the auxiliary ladder 12 and the auxiliary ladder 12 is turned up to abut against the main ladder 11, the inclined surface 26 of the hook 24 is aligned with the limit lever 16.

When the auxiliary ladder 12 is turned upwards to be abutted against the main ladder 11, a clamping hook 47 is fixedly connected to one side of the auxiliary ladder 12, which is away from the main ladder 11, and an opening of the clamping hook 47 is arranged towards the direction of the waist-shaped hole 15. The limiting plate 4 is slidably provided with a sliding block 42 along the length direction of the connecting rod 21, and a handle 44 for being gripped by an operator is fixedly connected to the sliding block 42. The slide block 42 is fixedly connected with a wing plate 45, the clamping hook 47 is positioned at the upper end of the wing plate 45, and the wing plate 45 is provided with a slot 46 for the clamping hook 47 to be inserted. The limiting plate 4 is fixedly connected with a spring 43 for pushing the sliding block 42 to slide, the spring 43 pushes the sliding block 42 under the action of self elasticity and drives the wing plate 45 to move towards the clamping hook 47, so that an opening of the clamping hook 47 is matched with the slot 46, the wing plate 45 is limited to overturn, and the connecting rod 21 is further limited to overturn accidentally.

The implementation principle of the embodiment of the application is as follows: when the auxiliary ladder 12 is in the upturning storage state, the rotating shaft 14 is positioned at the M end of the kidney-shaped hole 15, the connecting rod 21 is under the tension of the first tension spring 41, so that the limiting plate 4 is abutted against one side of the auxiliary ladder 12, which is away from the main ladder 11, the limiting rod 16 is clamped in the hook 24, and the slot 46 and the hook 47 are mutually spliced and matched under the elastic force of the spring 43.

When the operator needs to unfold the auxiliary ladder 12, the operator holds the handle 44 and pulls down the handle 44, so that the slider 42 moves away from the hook 47 against the elastic force of the spring 43, the matching and inserting effect between the hook 47 and the slot 46 is released, and the limiting effect of the hook 47 on the wing plate 45 and the limiting plate 4 is further released. The operator then turns the handle 44 away from the auxiliary ladder 12 so that the limiting plate 4 is turned away from the auxiliary ladder 12 against the spring force of the first spring 43. The connecting rod 21 and the limiting plate 4 synchronously rotate, so that the hook 24 is separated from the limiting rod 16, and the limiting effect between the hook 24 and the limiting rod 16 is further relieved. Next, the operator moves the handle 44 upward and moves the auxiliary ladder 12 upward so that the rotation shaft 14 moves to the N-end in the kidney-shaped hole 15. And finally, an operator turns down the auxiliary ladder 12 to realize the unfolding effect of the auxiliary ladder 12.

Before the operator needs to store the auxiliary ladder 12, the operator turns up the auxiliary ladder 12 to be abutted against the main ladder 11, at this time, the inclined surface 26 of the hook 24 is aligned with the limit rod 16, the operator moves the auxiliary ladder 12 towards the direction of the rotating shaft 14, in the process, the limit rod 16 is abutted against the inclined surface 26, and pushes the inclined surface 26 to overcome the elastic force of the second tension spring 33, so that the hook 24 is turned into the accommodating groove 25. When the limiting rod 16 passes over the hook 24, the hook 24 is reset under the elastic action of the second tension spring 33, so that the limiting effect between the auxiliary ladder 12 and the main ladder 11 is realized, and the stability of the auxiliary ladder 12 when being stored is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides a fire engine folding staircase which characterized in that: including fixed connection main ladder (11) on the carriage, articulated on main ladder (11) have vice ladder (12), fixedly connected with gag lever post (16) on main ladder (11), be provided with couple (24) on vice ladder (12), vice ladder (12) are through locking subassembly (2) control couple (24) with gag lever post (16) joint.

2. The fire truck collapsible ladder of claim 1, wherein: the auxiliary ladder (12) is hinged to the main ladder (11) through a rotating shaft (14), the rotating shaft (14) is fixedly connected to the main ladder (11), and a waist-shaped hole (15) for the sliding and penetrating of the rotating shaft (14) is formed in one end of the auxiliary ladder (12).

3. The fire truck collapsible ladder of claim 2, wherein: the locking assembly (2) comprises a connecting rod (21) hinged to the auxiliary ladder (12), the hook (24) is arranged on the connecting rod (21), a first tension spring (41) is arranged between the connecting rod (21) and the auxiliary ladder (12), the connecting rod (21) is pulled by the first tension spring (41), and the hook (24) is driven to be clamped with the limiting rod (16).

4. A fire truck collapsible ladder as claimed in claim 3, characterised in that: fixedly connected with is used for the butt on connecting rod (21) limiting plate (4) of auxiliary ladder (12), articulated shaft (22) of connecting rod (21) are located limiting plate (4) with couple (24) between, first extension spring (41) pulling connecting rod (21) drive limiting plate (4) butt in on auxiliary ladder (12), couple (24) keep away from one side of connecting rod (21) be provided with be used for with inclined plane (26) of gag lever post (16) butt, inclined plane (26) keep away from one end of connecting rod (21) towards auxiliary ladder (12) slope.

5. The fire truck collapsible ladder of claim 4, wherein: the limiting rod (16) is sleeved with a sleeve (17), and the sleeve (17) is rotatably connected to the limiting rod (16).

6. A fire truck collapsible ladder as claimed in claim 3, characterised in that: the sliding device is characterized in that a sliding block (42) is arranged on the connecting rod (21) in a sliding mode, a slot (46) is formed in the sliding block (42), a clamping hook (47) used for being inserted into the slot (46) is fixedly connected to the auxiliary ladder (12), and a spring (43) used for pushing the sliding block (42) to move towards the clamping hook (47) is fixedly connected to the connecting rod (21).

7. A fire truck collapsible ladder as claimed in claim 3, characterised in that: fixedly connected with articulated seat (23) on connecting rod (21), couple (24) articulated in on articulated seat (23), fixedly connected with branch (32) on couple (24), offer on articulated seat (23) and be used for supplying arc groove (31) that branch (32) slided, offer on articulated seat (23) and be used for holding tank (25) of couple (24), connecting rod (21) with fixedly connected with second extension spring (33) between couple (24), second extension spring (33) are used for the pulling couple (24) stretch out holding tank (25).

8. The fire truck collapsible ladder of claim 1, wherein: an elastic pad (13) used for being abutted against the main ladder (11) is fixedly connected to the auxiliary ladder (12).