CN111946098B

CN111946098B - Quick installation device for ladder cage and ladder cage

Info

Publication number: CN111946098B
Application number: CN202010677227.5A
Authority: CN
Inventors: 周建; 杨华斌; 周小华
Original assignee: Jiangsu Zhonghai Bridge Equipment Co Ltd
Current assignee: Jiangsu Zhonghai Bridge Equipment Co Ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-11-26
Anticipated expiration: 2040-07-14
Also published as: CN111946098A

Abstract

The invention discloses a quick mounting device for a ladder cage and the ladder cage, which comprise a clamping plate, a locking plate and a centering device, wherein the centering device is used for aligning the centers of an upper square tube and a lower square tube; when the upper pipe is connected with the lower pipe, the hook head is connected with the connecting hole, and the lower end of the clamping and connecting plate is positioned between the outer extension section and the lower pipe. The invention can quickly and efficiently complete the connection between the upper ladder cage and the lower ladder cage, and the operation process does not need to manually and specifically operate the clamping plate and the locking plate, and only needs to make the positioning column enter the lower pipe and then continuously move downwards.

Description

Quick installation device for ladder cage and ladder cage

Technical Field

The invention relates to a quick mounting device for a ladder cage and the ladder cage, and belongs to the technical field of ladder cages.

Background

The ladder cage is mainly used for pedestrians to go up and down in bridge high piers, deep foundation pit subway construction and pier column construction, and can also be used as a safe pedestrian passage during building foundation pit construction. It is very convenient to carry tools and the like up and down. Can well meet the requirements of various safe constructions.

The ladder cage in the prior art comprises a ladder frame consisting of a plurality of ladder stand units which are connected from bottom to top and a fixing component connected between the ladder frame and a building structure; the walking pedal is provided with a safety door which is convenient to enter and exit, and safety protection nets are arranged around the safety door. The main components are frame, ladder, handrail and protecting net.

The ladder cage cross-section is the rectangle, and its main supporting mechanism sets up in four square steel in the four corners, need reliable the fixing together between the ladder cage of upper and lower floor, specifically does, and upper and lower side's pipe should be under the prerequisite of centering, should possess better tensile ability after connecting, not directly pile up. In the prior art, the pins are usually adopted between the upper square tube and the lower square tube to avoid the square tube to be disconnected, the pin connection is rapid and efficient, the structure is simple, the defect of easy disconnection exists, once the pins slip from the holes, the danger of collapse of the ladder cage can be caused, and the operation of the pins still needs to be manually climbed to the corresponding height due to the fact that the height of the ladder cage is high, and therefore certain difficulty is brought to rapid erection of the ladder cage.

Disclosure of Invention

In order to solve the defects of the prior art, the invention aims to provide a quick mounting device for a ladder cage and the ladder cage, and solves the technical problems that the ladder cage is slow in mounting speed and easy to separate after being mounted in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

a quick mounting device for a ladder cage is characterized by comprising a clamping plate, a locking plate and a centering device, wherein the centering device is used for aligning the centers of an upper pipe and a lower pipe, the upper end of the clamping plate is hinged to the side part of the upper pipe, the lower end of the clamping plate is provided with a hook head extending inwards, the locking plate can be connected to the upper end of the lower pipe in a vertical sliding manner, an elastic device used for driving the locking plate to slide upwards is arranged between the locking plate and the lower pipe, the side part of the lower pipe is provided with a connecting hole matched with the hook head, the lower end of the hook head is provided with an outer wedge-shaped end, an outer extension section is arranged above the locking plate, and the upper edge of the outer extension section is provided with an inner wedge-shaped end matched with the outer wedge-shaped end;

when the upper pipe is connected with the lower pipe, the hook head is connected with the connecting hole, and the lower end of the clamping and connecting plate is positioned between the outer extension section and the lower pipe.

Preferably, preceding quick installation device is used to ladder cage, its characterized in that, centring means is the reference column that the cross-section is the rectangle, and reference column upper end fixed connection is in the lower extreme of upper square pipe, and the lower extreme matches with the internal diameter of lower square pipe.

Preferably, aforesaid quick installation device is used to ladder cage, its characterized in that, the reference column still is equipped with protruding muscle, and protruding muscle is connected in the lower extreme of upper square pipe.

Preferably, the quick mounting device for the ladder cage is characterized in that the locking plate is provided with a waist-shaped hole, and the waist-shaped hole is connected to the side part of the lower pipe through at least two rivets.

Preferably, the quick mounting device for the ladder cage is characterized in that the elastic device is a tension spring, a flange is arranged below the locking plate, and two ends of the tension spring are respectively connected to the rivet and the flange.

Preferably, aforesaid quick installation device is used to ladder cage, its characterized in that, the lower side pipe still is equipped with the lock dead hole, and the lock dead hole is equipped with the internal thread, and when being in the locking state, lock dead hole connection locking screw, locking screw connect in the lower extreme of lock dead plate.

A ladder cage comprises the quick mounting device for the ladder cage.

Preferably, the ladder cage is with quick installation device has two, and two ladder cages are with quick installation device and set up respectively in two opposite faces of upper square pipe, lower square pipe.

The invention achieves the following beneficial effects:

compared with the prior art, the connection between the upper ladder cage and the lower ladder cage can be completed quickly and efficiently, manual and specific operation of the clamping plate and the locking plate is not needed in the connection and locking process, and only the positioning column enters the lower tube and then moves downwards continuously.

When the locking mechanism is in a locking state, the locking bolt can be installed to further lock the locking plate, so that the risk coefficient is greatly reduced.

Drawings

Fig. 1 is a first axial sectional view (locked state) of the quick mounting device for a ladder cage of the present invention;

fig. 2 is a second axial sectional view (installation state) of the quick installation device for a ladder cage of the present invention;

FIG. 3 is a front view of the deadbolt of the present invention;

the meaning of the reference symbols in the figures: 1-upper square tube; 2-a clamping and connecting plate; 3-lower tube; 4-locking the plate; 5-riveting; 6-a tension spring; 7-locking screws; 8-a positioning column; 21-hook head; 22-outer wedge end; 31-a connection hole; 32-locking holes; 41-an outer extension section; 42-inner wedge end; 43-flanging; 44-kidney shaped holes; 81-convex rib.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 3: the embodiment discloses a quick mounting device for a ladder cage, which comprises a clamping plate 2, a locking plate 4 and a centering device, wherein the centering device is used for aligning the centers of an upper pipe 1 and a lower pipe 3, the upper end of the clamping plate 2 is hinged to the side part of the upper pipe 1, the lower end of the clamping plate is provided with a hook head 21 extending inwards, the locking plate 4 can be connected to the upper end of the lower pipe 3 in an up-and-down sliding manner, an elastic device used for driving the locking plate 4 to slide upwards is arranged between the locking plate 4 and the lower pipe 3, the side part of the lower pipe 3 is provided with a connecting hole 31 matched with the hook head 21, the lower end of the hook head 21 is provided with an outer wedge-shaped end 22, an outer extension section 41 is arranged above the locking plate 4, and the upper edge of the outer extension section 41 is provided with an inner wedge-shaped end 42 matched with the outer wedge-shaped end 22;

when the upper pipe 1 is coupled to the lower pipe 3, the hook head 21 is coupled to the coupling hole 31, and the lower end of the chucking plate 2 is positioned between the outwardly extending section 41 and the lower pipe 3.

Preferably, centring means is that the cross-section is the reference column 8 of rectangle, and 8 upper ends of reference column fixed connection in the lower extreme of upper pipe 1 can adopt welded mode to connect between the two, and the lower extreme is convenient for insert the inside to lower pipe 3 with the internal diameter phase-match of lower pipe 3.

The positioning column 8 is further provided with a convex rib 81, the convex rib 81 is connected to the lower end of the upper square tube 1, the function of a gasket is achieved, and the end portion of the square tube is protected.

The distance connection mode of the locking plate 4 and the lower pipe 3 is as follows: the locking plate 4 is provided with a kidney-shaped hole 44, and the kidney-shaped hole 44 is connected to the side portion of the lower pipe 3 by at least two rivets 5. Wherein, resilient means is extension spring 6, and the below of locking board 4 is equipped with turn-ups 43, and the both ends of extension spring 6 are connected respectively in rivet 5, turn-ups 43.

In order to avoid the dead lock plate 4 being opened accidentally, for example, the tension spring 6 is dropped or damaged, or the dead lock plate 4 is stuck without sliding up and down, the embodiment preferably further has a dead lock hole 32 in the lower tube 3, the dead lock hole 32 is provided with an internal thread, when in the locked state, the dead lock hole 32 is connected with the locking screw 7, and the locking screw 7 is connected to the lower end of the dead lock plate 4 for propping against the dead lock plate 4. In practical application, at least one locking screw 7 should be installed on each group of square pipes.

This embodiment discloses a ladder cage, contains the aforesaid ladder cage with quick installation device of this embodiment, square pipe has four sides, and the ladder cage of this embodiment is with quick installation device has two best, sets up respectively in two opposite faces of upper square pipe 1, lower square pipe 3.

When the upper and lower square pipes are required to be butted, the positioning column 8 is firstly inserted into the lower square pipe 3, and then the guiding between the two square pipes is completed, as shown in fig. 2, in an unconnected state, the hook head 21 can support the clamping plate 2, the outer wedge-shaped end 22 is matched with the inner wedge-shaped end 42, the upper square pipe 1 is continuously moved downwards, the locking plate 4 can be driven to slide downwards, when the hook head 21 enters the connecting hole 31, the locking plate 4 moves upwards under the action of the tension spring 6, the clamping plate 2 enters the inner part of the outer extension section 41, for the sake of safety, the locking screw 7 can be continuously installed, compared with the prior art, the connection between the upper and lower elevator cages can be rapidly and efficiently completed, and the clamping plate 2 and the locking plate 4 do not need to be manually and specifically operated in the connection and locking process, only the positioning column 8 needs to enter the lower square pipe 3, and then continuously moving downwards.

When in the locking state, the present embodiment can further lock the dead plate 4 by installing the locking screw 7, thereby greatly reducing the risk factor.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A quick mounting device for a ladder cage is characterized by comprising a clamping plate (2), a locking plate (4) and a centering device, the centering device is used for aligning the centers of the upper tube (1) and the lower tube (3), the upper end of the clamping plate (2) is hinged with the side part of the upper square tube (1), the lower end is provided with a hook head (21) extending inwards, the locking plate (4) can be connected with the upper end of the lower pipe (3) in a sliding way up and down, an elastic device for driving the locking plate (4) to slide upwards is arranged between the locking plate (4) and the lower tube (3), the side part of the lower pipe (3) is provided with a connecting hole (31) matched with the hook head (21), the lower end of the hook head (21) is provided with an outer wedge-shaped end (22), an outer extension section (41) is arranged above the locking plate (4), the upper edge of the outer extension section (41) is provided with an inner wedge-shaped end (42) matched with the outer wedge-shaped end (22);

when the upper pipe (1) is connected with the lower pipe (3), the hook head (21) is connected with the connecting hole (31), and the lower end of the clamping plate (2) is positioned between the outer extension section (41) and the lower pipe (3);

the centering device is a positioning column (8) with a rectangular section, the upper end of the positioning column (8) is fixedly connected to the lower end of the upper square tube (1), and the lower end of the positioning column is matched with the inner diameter of the lower square tube (3);

the positioning column (8) is also provided with a convex rib (81), and the convex rib (81) is connected to the lower end of the upper square pipe (1);

the locking plate (4) is provided with a waist-shaped hole (44), and the waist-shaped hole (44) is connected to the side part of the lower pipe (3) at least through two rivets (5);

the elastic device is a tension spring (6), a flanging (43) is arranged below the locking plate (4), and two ends of the tension spring (6) are respectively connected to the rivet (5) and the flanging (43);

lower part pipe (3) still are equipped with lock dead hole (32), lock dead hole (32) are equipped with the internal thread, and when being in the lock-out condition, lock dead hole (32) are connected locking screw (7), locking screw (7) are connected in the lower extreme of lock dead plate (4).

2. A ladder cage comprising a quick-attach assembly for a ladder cage according to claim 1.

3. The ladder cage as claimed in claim 2, wherein there are two quick-mounting means for the ladder cage, and the two quick-mounting means for the ladder cage are respectively disposed on two opposite surfaces of the upper tube (1) and the lower tube (3).