CN210530719U

CN210530719U - A pneumatic upset of light-duty roof draws ladder frame for fire engine

Info

Publication number: CN210530719U
Application number: CN201921017778.8U
Authority: CN
Inventors: 马志峰
Original assignee: Suzhou Youhengan Fire Equipment Co Ltd
Current assignee: Suzhou Youhengan Fire Equipment Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-05-15
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a pneumatic upset of light-duty roof draws ladder frame for fire engine, including mount, mount front end articulated roll-over stand, roll-over stand upper end articulated chute frame, chute frame middle sliding fit's expansion bracket and support ladder frame, the upper and lower both ends of roll-over stand are articulated with mount, chute frame respectively, the middle of chute frame is equipped with the layer board, the fixed welding of front end of layer board has the fixed plate, the left and right sides symmetry of layer board lateral surface is equipped with two guide rail I, the outside sliding fit of guide rail I has the traction frame of C type plate-shaped structure; the utility model adopts the cylinder for driving, and simultaneously adopts the cold bending plate as the frame structure, and the plate is provided with lightening holes, so the cost of the whole ladder frame is lower, and the whole weight is lighter, and the installation and the operation are convenient; the utility model discloses a synchronous belt drive, the transmission is comparatively steady, need not carry out the maintenance adjustment of regularity, and the operation maintenance cost is lower.

Description

A pneumatic upset of light-duty roof draws ladder frame for fire engine

Technical Field

The utility model relates to a fire-fighting equipment specifically is a pneumatic upset of light-duty roof draws ladder frame for fire engine.

Background

The fire ladder is the must possess equipment of fire control fire fighting, the roof at the fire engine is installed to the fire ladder usually, put down the fire ladder from the fire engine roof during use, the roof of fire ladder pull back to the fire engine after the use is accomplished, but because the fire ladder is comparatively heavy, it is just more difficult to get the fire ladder at the roof, in order to solve this problem, the ladder frame that draws has been seted up among the prior art, draw the ladder to erect at the top of fire engine, have the automatic function of getting the fire ladder of putting, the fire engine among the prior art draws the ladder frame and generally adopts electric drive, adopt chain drive mode simultaneously, and its framework is formed by steel pipe welding usually, this kind draws the ladder frame to satisfy the operation requirement of getting the fire ladder automatically to a certain extent, but it still has following drawback in the in-service use process:

1. the ladder pulling frame in the prior art is electrically driven and is formed by welding steel pipes, so that the cost is high and the weight is heavy;

2. in the process of adopting chain transmission, the stability of transmission is lower, has certain impact and noise, and needs to be maintained and adjusted periodically, so the operation cost is higher.

Accordingly, one skilled in the art has provided a convertible lift ladder for a light roof of a fire engine to solve the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic upset of light-duty roof draws ladder frame for fire engine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a light roof pneumatic overturning ladder pulling frame for a fire fighting truck comprises a fixed frame, a turnover frame hinged with the front end of the fixed frame, a chute frame hinged with the upper end of the turnover frame, a telescopic frame matched with the middle of the chute frame in a sliding way and a ladder supporting frame, wherein the upper end and the lower end of the turnover frame are respectively hinged with the fixed frame and the chute frame, a supporting plate is arranged in the middle of the chute frame, a fixed plate is fixedly welded at the front end of the supporting plate, two guide rails I are symmetrically arranged on the left side and the right side of the outer side surface of the supporting plate, a C-shaped plate-shaped traction frame is matched with the outer side of the guide rails I in a sliding way, guide grooves II matched with the guide rails I in a sliding way are symmetrically arranged on the left side and the right side of the inner side surface of the traction frame, two hinge joints hinged with the rear end of the fixed frame are symmetrically arranged on the left side and the right side of, the upper end of expansion bracket is equipped with the slide, and is equipped with two guide rail II with guide slot I looks sliding fit in the left and right sides symmetry of the lateral surface of slide, the lower extreme fixed mounting of slide has the cylinder, two fixed slots have been seted up at both ends around the layer board bottom, and are equipped with two fixing bases in the left and right sides symmetry of fixed slot, the centre cover of fixing base is furnished with pivot I, and fixed mounting has the hold-in range pulley pair between two pivot I, the vice both ends of hold-in range pulley are equipped with two hold-in range pulleys that cup joint mutually with pivot I, and around being equipped with the hold-in range on two hold-in range pulleys's excircle, the upper and lower both ends face of hold-in range respectively with.

As a further aspect of the present invention: the middle of the fixing frame is provided with a supporting plate I, the upper end of the supporting plate I is provided with lightening holes I which are uniformly distributed, and the left side and the right side of the supporting plate I are symmetrically provided with four mounting holes I.

As a further aspect of the present invention: the middle of the roll-over stand is provided with a supporting plate II, and the upper end of the supporting plate II is provided with lightening holes II which are uniformly distributed.

As a further aspect of the present invention: lightening holes III and lightening holes IV which are uniformly distributed and arranged are formed in the bottom of the supporting plate and on two side walls of the supporting plate.

As a further aspect of the present invention: the panel at the front end of the air cylinder is fixedly connected with a fixing screw rod which is matched with the fixing plate in a penetrating mode, and locking nuts are screwed on the outer circle of the fixing screw rod and on the two sides of the fixing plate.

As a further aspect of the present invention: the lower extreme fixed mounting of hold-in range has the connecting plate I that is connected with the up end of traction frame, the upper end fixed mounting of hold-in range has the connecting plate II that is connected with the cylinder.

As a further aspect of the present invention: the left and right sides symmetry of holding in palm the ladder frame is equipped with two channel-section steels, and has backup pad III in the bottom fixed welding of channel-section steel, the lightening hole V that the equipartition was arranged is seted up to the side of channel-section steel, the centre fixedly connected with pivot II of channel-section steel, and the cover is equipped with the bedplate on pivot II's excircle.

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

1. the utility model adopts the cylinder for driving, and simultaneously adopts the cold bending plate as the frame structure, and the plate is provided with lightening holes, so the cost of the whole ladder frame is lower, and the whole weight is lighter, and the installation and the operation are convenient;

2. the utility model discloses a synchronous belt drive, the transmission is comparatively steady, need not carry out the maintenance adjustment of regularity, and the operation maintenance cost is lower.

Drawings

FIG. 1 is a side view of the present invention;

FIG. 2 is a side view II of the present invention;

FIG. 3 is a side half-sectional view of the mechanism of the present invention;

FIG. 4 is a schematic view of a portion of the structure of FIG. 3 at A;

FIG. 5 is a schematic view of a portion of the structure shown at B in FIG. 3;

fig. 6 is a partial structural diagram of fig. 3 at C.

In the figure: 1. a fixed mount; 2. a roll-over stand; 3. a chute frame; 4. a telescopic frame; 5. a traction frame; 6. a pulley pair; 7. a ladder supporting frame; 101. a support plate I; 102. a lightening hole I; 103. a mounting hole I; 201. a support plate II; 202. a lightening hole II; 301. a support plate; 302. a guide rail I; 303. a guide groove I; 304. a lightening hole III; 305. a lightening hole IV; 306. a fixing plate; 307. fixing grooves; 308. a fixed seat; 309. a rotating shaft I; 401. a slide plate; 402. a guide rail II; 403. a cylinder; 404. fixing the screw rod; 405. locking the nut; 501. a guide groove II; 502. a hinge joint; 601. a synchronous pulley; 602. a synchronous belt; 603. connecting a plate I; 604. a connecting plate II; 701. channel steel; 702 a support plate III; 703. a lightening hole V; 704. A rotating shaft II; 705. a seat board.

Detailed Description

Please refer to fig. 1-6, in an embodiment of the present invention, a light roof pneumatic turnover ladder-pulling frame for fire truck, including a fixed frame 1, a roll-over stand 2 hinged to the front end of the fixed frame 1, a chute frame 3 hinged to the upper end of the roll-over stand 2, a telescopic frame 4 and a ladder-supporting frame 7 slidably fitted in the middle of the chute frame 3, the upper and lower ends of the roll-over stand 2 are hinged to the fixed frame 1 and the chute frame 3, a supporting plate 301 is disposed in the middle of the chute frame 3, the supporting plate 301 is formed by one-time cold bending of a plate, so that the supporting plate has high strength and low quality, a fixed plate 306 is fixedly welded to the front end of the supporting plate 301, two guide rails I302 are symmetrically disposed on the left and right sides of the outer side of the supporting plate 301, a traction frame 5 having a C-shaped plate structure is slidably fitted in the outer side of the guide rail I302, guide grooves II slidably fitted in the guide rail I302 are symmetrically disposed on the inner side of the traction Two guide grooves I303 are symmetrically formed in the left and right of the inner side surface of the supporting plate 301, an expansion bracket 4 is arranged in the guide grooves I303 and in the middle of the supporting plate 301 in a sliding mode, a sliding plate 401 is arranged at the upper end of the expansion bracket 4, two guide rails II 402 which are matched with the guide grooves I303 in a sliding mode are symmetrically arranged on the left and right sides of the outer side surface of the sliding plate 401, an air cylinder 403 is fixedly arranged at the lower end of the sliding plate 401, two fixing grooves 307 are formed in the front and back ends of the bottom of the supporting plate 301, two fixing seats 308 are symmetrically arranged on the left and right sides of the fixing grooves 307, a rotating shaft I309 is sleeved in the middle of each fixing seat 308, a synchronous pulley pair 6 is fixedly arranged between the two rotating shafts I309, two synchronous pulleys 601 sleeved with the rotating shaft I309 are arranged at the two ends of the synchronous pulley pair 6, a, The traction frame 5 is fixedly connected.

In fig. 1: the middle of mount 1 is equipped with backup pad I101, and sets up the lightening hole I102 of equipartition range in backup pad I101's upper end, and the left and right sides symmetry of backup pad I101 is equipped with four mounting hole I103, and wherein, backup pad I101 has the one-time cold-bending of panel to take shape, and bulk strength is higher to the quality is lighter, and mounting hole I103 of seting up on backup pad I101 has further reduced the overall mass of mount 1.

In fig. 1: the middle of the roll-over stand 2 is provided with a support plate II 201, and the upper end of the support plate II 201 is provided with lightening holes II 202 which are uniformly distributed and arranged, wherein the support plate II 201 is formed by one-time cold bending of a plate, the overall strength is higher, the weight is lighter, and the lightening holes II 202 arranged on the support plate II 201 further reduce the overall weight of the roll-over stand 2.

In fig. 1: the bottom of the supporting plate 301 and two side walls of the supporting plate 301 are provided with lightening holes III304 and lightening holes IV 305 which are uniformly distributed, and the structure reduces the whole mass of the sliding chute frame 3.

In fig. 2: the front panel of the cylinder 403 is fixedly connected with a fixing screw 404 penetrating the fixing plate 306, and locking nuts 405 are screwed on the outer circle of the fixing screw 404 and on two sides of the fixing plate 306, so that the position of the telescopic frame 4 in the chute frame 3 can be conveniently adjusted.

In fig. 5: the lower extreme fixed mounting of hold-in range 602 has the connecting plate I603 that is connected with the up end of traction frame 5, and the upper end fixed mounting of hold-in range 602 has the connecting plate II 604 that is connected with cylinder 403, and this kind of structure makes the dismouting of hold-in range 602 with guide slot II 501, cylinder 403 comparatively convenient.

In fig. 1: the left and right sides symmetry of holding in the palm ladder frame 7 is equipped with two channel-section steels 701, and there is backup pad III 702 in the bottom fixed welding of channel-section steel 701, lightening hole V703 that the equipartition was arranged is seted up to the side of channel-section steel 701, the middle fixedly connected with pivot II 704 of channel-section steel 701, and the cover is equipped with bedplate 705 on the excircle of pivot II 704, the whole quality of holding in the palm ladder frame 7 has been reduced through lightening hole V703, and bedplate 705 can revolute the swing of pivot II 704, bedplate 705 has improved the holding surface relatively the fire ladder simultaneously, play the effect of outrigger.

The utility model discloses a theory of operation is: the ladder pulling frame is integrally erected at the top of the fire fighting truck, the fire fighting ladder is fixed on the upper end surface of the sliding plate 401, when the fire fighting ladder needs to be lowered, the starting cylinder 403 extends, so that the channel steel 701 with the fire ladder extends out of the supporting plate 301 along the guide of the guide groove I303, in the process, the cylinder 403 drives the connecting plate II 604 on the lower end surface to slide, so that the synchronous belt 602 rotates along with the cylinder 403, meanwhile, the connecting plate I603 on the lower end face of the synchronous belt 602 drives the traction frame 5 to move along the guide rail I302, thereby leading the chute frame 3 and the traction frame 5 to rotate around the rear end of the fixed frame 1, leading the upper end of the chute frame 3 to lead the roll-over stand 2 to rotate around the front end of the fixed frame 1, thereby the fire ladder is turned backwards around the fixed mount 1 and extends out of the chute frame 3, the whole operation process is stable, because the whole weight that draws the ladder frame is lighter, consequently the drive power that needs is less, has improved the upset efficiency of whole ladder frame that draws.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A light roof pneumatic turnover ladder pulling frame for a fire fighting truck comprises a fixed frame (1), a turnover frame (2) hinged to the front end of the fixed frame (1), a chute frame (3) hinged to the upper end of the turnover frame (2), a telescopic frame (4) in the middle of the chute frame (3) and a ladder supporting frame (7), and is characterized in that the upper end and the lower end of the turnover frame (2) are hinged to the fixed frame (1) and the chute frame (3) respectively, a supporting plate (301) is arranged in the middle of the chute frame (3), a fixed plate (306) is fixedly welded to the front end of the supporting plate (301), two guide rails I (302) are symmetrically arranged on the left side and the right side of the outer side surface of the supporting plate (301), a traction frame (5) with a C-shaped plate-shaped structure is slidably arranged on the outer side of the guide rails I (302), and guide grooves II (501) in sliding fit with the guide rails I (302) are symmetrically arranged on the left side and, the left side and the right side of the lower end of the traction frame (5) are symmetrically provided with two hinged joints (502) hinged with the rear end of the fixed frame (1), the inner side surface of the supporting plate (301) is symmetrically provided with two guide grooves I (303), the inner part of each guide groove I (303) is provided with a telescopic frame (4) in the middle of the supporting plate (301), the upper end of each telescopic frame (4) is provided with a sliding plate (401), the left side and the right side of the outer side surface of the sliding plate (401) are symmetrically provided with two guide rails II (402) matched with the guide grooves I (303) in a sliding manner, the lower end of the sliding plate (401) is fixedly provided with a cylinder (403), the front end and the rear end of the bottom of the supporting plate (301) are provided with two fixed grooves (307), the left side and the right side of each fixed groove (307) are symmetrically provided with two fixed seats (308), the middle of each fixed seat (308) is sleeved with, two ends of the synchronous pulley pair (6) are provided with two synchronous pulleys (601) which are sleeved with the rotating shaft I (309), a synchronous belt (602) is wound on the outer circles of the two synchronous pulleys (601), and the upper end face and the lower end face of the synchronous belt (602) are fixedly connected with the air cylinder (403) and the traction frame (5) respectively.

2. The pneumatic turnover ladder pulling frame for the light roof of the fire fighting truck as claimed in claim 1, wherein a support plate I (101) is arranged in the middle of the fixing frame (1), lightening holes I (102) are uniformly distributed at the upper end of the support plate I (101), and four mounting holes I (103) are symmetrically arranged at the left side and the right side of the support plate I (101).

3. The pneumatic turnover ladder pulling frame for the light roof of the fire fighting truck as claimed in claim 1, wherein a support plate II (201) is arranged in the middle of the turnover frame (2), and weight-reducing holes II (202) are uniformly distributed and arranged at the upper end of the support plate II (201).

4. The pneumatic turnover ladder frame for the light roof of the fire fighting truck as recited in claim 1, characterized in that the bottom of the support plate (301) and two side walls of the support plate (301) are provided with lightening holes III (304) and lightening holes IV (305) which are uniformly arranged.

5. The pneumatic turnover ladder frame for the light roof of the fire fighting truck as recited in claim 1, characterized in that a fixing screw (404) which is penetrated and matched with the fixing plate (306) is fixedly connected to a panel at the front end of the cylinder (403), and locking nuts (405) are screwed on the outer circle of the fixing screw (404) and on both sides of the fixing plate (306).

6. The pneumatic turnover ladder frame for the light roof of the fire fighting truck as claimed in claim 1, wherein a connecting plate I (603) connected with the upper end surface of the traction frame (5) is fixedly installed at the lower end of the synchronous belt (602), and a connecting plate II (604) connected with the cylinder (403) is fixedly installed at the upper end of the synchronous belt (602).

7. The pneumatic turnover ladder pulling frame for the light roof of the fire fighting truck as claimed in claim 1, wherein two channel steels (701) are symmetrically arranged on the left side and the right side of the ladder supporting frame (7), a supporting plate III (702) is fixedly welded at the bottoms of the channel steels (701), lightening holes V (703) are uniformly distributed and arranged on the side surfaces of the channel steels (701), a rotating shaft II (704) is fixedly connected to the middle of the channel steels (701), and a seat plate (705) is sleeved on the excircle of the rotating shaft II (704).