CN207728012U - A kind of safety protection device for elevator hoistway - Google Patents

Abstract

A safety protection device for an elevator shaft, comprising a fixed frame and a bayonet at the front end of the fixed frame, the bayonet is used to block the floor at the lower part of the elevator door, the width of the fixed frame is larger than that of the elevator door, and two The first telescopic frame that protrudes from the side, the second telescopic frame that protrudes along the rear end of the fixed frame, the extended lengths of the first telescopic frame and the second telescopic frame are adjustable, the length of the fixed frame and the extension of the second telescopic frame The sum of the lengths is greater than the distance between the front and rear shear walls of the elevator shaft, and the rear end of the fixing frame is obliquely placed between the front and rear shear walls of the elevator shaft in a manner that the rear end is higher than the front end. The telescopic structure is used to realize the variable size of the protective device, which improves the applicability of the device, reduces the construction cost, is reusable, and is economical and applicable; the volume of the protective device is reduced after shrinking, and it is easier to install from the elevator door, and it is also convenient for transportation and storage .

Description

A safety protection device for an elevator shaft

technical field

The utility model relates to the technical field of building construction, in particular to an elevator shaft safety protection device.

Background technique

With the development of the urbanization process, more and more high-rise buildings or super high-rise buildings are dug out of the ground. How to ensure safety and quickly complete the construction at the elevator shaft head is also particularly important. The existing technology adopts elevator shaft protection devices to solve the above problems. Problem, such as the Chinese patent CN 204126290U, discloses a horizontal protection device for an elevator shaft, including two first support rods fixed horizontally on the floor, a horizontal pressure rod and a protective net, and one end of the two first support rods extends into the elevator The inside of the well, and the two first support rods are located on both sides of the elevator shaft door opening, the protective net is located inside the elevator shaft, and it is located on the side of the elevator shaft door opening and overlapped on the two first support rods, the protective net It is arranged obliquely, and the angle between the plane where it is located and the horizontal plane where the axes of the two first support rods are located is 15-30 degrees, and the two ends of the horizontal pressure rod are located at the ends outside the elevator shaft The advantages of connection are: by using two first support rods fixed to the floor and horizontal pressure rods as the support structure, the oblique protective net is erected at the inner end of the two first support rods at the inner side of the elevator shaft, and only two The first supporting rod cooperates with the wall surface to support the protective net and the falling objects falling on the protective net, so as to ensure construction safety. Another example is the Chinese patent CN105544999A, which discloses a horizontal safety protection device for an elevator shaft, including two diagonal braces; Placed between the front and rear shear walls of the elevator shaft, the front and rear ends of the diagonal brace are each fixed with a temple for expanding the contact area at both ends, and the front end of the diagonal brace is also fixed with a bayonet for locking the elevator door floor , The scheme utilizes its own gravity to firmly hold the elevator well without slipping, has a simple structure, is convenient to install, is safe and reliable, is convenient for transportation and storage, can be reused, and is economical and applicable. But still there are following problems in above-mentioned technical scheme: 1, the size of protective device is certain, is only suitable for the protection of the elevator shaft of a size, and versatility is not strong; 2, installation and removal difficulty,

Utility model content

The utility model discloses an elevator shaft safety protection device, which improves the universality of the elevator shaft safety protection device and facilitates disassembly and assembly.

The technical scheme of the utility model is as follows: a safety protection device for an elevator shaft, comprising a fixed frame 1 and a bayonet 10 at the front end of the fixed frame 1, the bayonet 10 is used to block the floor at the lower part of the elevator door 9, the The width of fixed mount 1 is greater than the width of elevator door 9, also comprises the first telescopic frame 3 that stretches out along described fixed mount 1 left and right sides, the second telescopic frame 2 that stretches out along described fixed mount 1 rear end, so The protruding length of the first telescopic frame 3 and the second telescopic frame 2 is adjustable, and the sum of the length of the fixed frame 1 and the protruding length of the second telescopic frame 2 is greater than the distance between the shear walls 8 before and after the elevator shaft , the fixed frame 1 is obliquely placed between the front and rear shear walls 8 of the elevator shaft in such a way that the rear end is higher than the front end. Through the expansion and contraction of the telescopic frame 3 and the telescopic frame 2, the size of the elevator shaft safety protection device can be adjusted, which can be adapted to the installation of elevator shafts of different sizes, and the versatility of the protection device is improved; the elevator shaft safety protection device is realized through the telescopic frame 3 and the telescopic frame 2 The disassembly and assembly are more convenient.

Preferably, a guide rail 7 is installed on the fixed frame 1, and the first telescopic frame 3 and the second telescopic frame 2 are installed in the guide rail 7, which is convenient for the adjustment of the telescopic frame and stable stretching.

Preferably, the bayonet 10 is formed by extending the two middle guide rails 701 of the second telescopic frame 2 along the front end of the fixed frame 1, and the existing guide rails are used to extend to form a bayonet, which has a simple structure and saves costs.

Preferably, the first telescopic frame 3 and the second telescopic frame 2 are provided with locking bolts 4 behind them, and the locking bolts 4 pass through the locking grooves 5 on the fixed frame 1 to realize the expansion of the telescopic frame. 3. After the position is adjusted, it is locked and fixed to ensure the firmness of the installation.

Preferably, the first telescopic frame 3 and the second telescopic frame 2 are provided with scale lines 6 to facilitate precise adjustment of the telescopic frame 1 .

Preferably, the guide rail 7 is made of square steel welded to the fixing frame 1, which is simple to manufacture and process, and saves cost.

The beneficial effects of the utility model:

1. The size of the protective device is variable by adopting a telescopic structure, which improves the applicability of the device, reduces construction costs, and is reusable and economical;

2. The volume of the protective device is reduced after shrinking, and it is easier to install from the elevator door, and it is also convenient for transportation and storage.

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of an elevator shaft safety protection device described in the present invention.

Fig. 2 is a top view of a schematic diagram of the installation structure of an elevator shaft safety protection device described in the present invention.

Fig. 3 is a schematic diagram of the installation structure of Embodiment 2 of an elevator shaft safety protection device described in the present invention.

Fig. 4 is a schematic diagram of the installation structure of the telescopic frame of Embodiment 2 of an elevator shaft safety protection device described in the present invention.

Fig. 5 is an enlarged view of A in Fig. 1 .

Fig. 6 is a schematic structural view of Embodiment 3 of an elevator shaft safety protection device described in the present invention.

In the figure: 1, fixed frame; 2, second telescopic frame; 3, first telescopic frame; 4, locking bolt; 5, locking groove; 6, scale line; 7, guide rail; 701, intermediate guide rail; 8, Shear wall; 9. Elevator door; 10. Bayonet.

Detailed ways

The specific embodiment of the utility model is illustrated below in conjunction with the accompanying drawings of the description:

Example 1:

As shown in Figures 1 and 2, an elevator shaft safety protection device includes a fixed frame 1 and a bayonet 10 at the front end of the fixed frame 1, and the bayonet 10 is used to block the floor below the elevator door 9, so The width of the fixed mount 1 is greater than the width of the elevator door 9, and also includes a first telescopic frame 3 stretched out along the left and right sides of the fixed mount 1, a second telescopic frame 2 stretched out along the rear end of the fixed mount 1, The protruding length of the first telescopic frame 3 and the second telescopic frame 2 is adjustable, and the sum of the length of the fixed frame 1 and the protruding length of the second telescopic frame 2 is greater than the front and rear shear walls 8 of the elevator shaft The distance between the fixed frame 1 and the front and rear shear walls 8 of the elevator shaft is obliquely placed in such a way that the rear end is higher than the front end. Guide rail 7 adopts square steel to be welded on the fixed frame 1 and makes.

Example 2:

As shown in Fig. 1, Fig. 3 and Fig. 4 and Fig. 5, an elevator shaft safety protection device includes a fixed frame 1 and a bayonet 10 at the front end of the fixed frame 1, and the bayonet 10 is used to block the elevator door 9 The lower floor, the width of the fixed frame 1 is greater than the width of the elevator door 9, and also includes the first telescopic frame 3 protruding along the left and right sides of the fixed frame 1, and the first telescopic frame 3 protruding along the rear end of the fixed frame 1 The second telescopic frame 2, the extended length of the first telescopic frame 3 and the second telescopic frame 2 is adjustable, the length of the fixed mount 1 and the sum of the extended length of the second telescopic frame 2 is greater than that of the elevator shaft The front and rear shear walls 8 are spaced apart, and the fixed frame 1 is obliquely placed between the front and rear shear walls 8 of the elevator shaft in such a manner that the rear end is higher than the front end.

The telescopic frame 3 is provided with a locking bolt 4, and the locking bolt 4 passes through the locking groove 5 on the fixed frame 1; the first telescopic frame 3 and the second telescopic frame 2 are provided with There are tick marks 6. Guide rail 7 adopts square steel to be welded on the fixed frame 1 and makes.

Example 3:

As shown in Figures 1 and 6, an elevator shaft safety protection device includes a fixed frame 1 and a bayonet 10 at the front end of the fixed frame 1, and the bayonet 10 is used to block the floor below the elevator door 9, so The width of the fixed mount 1 is greater than the width of the elevator door 9, and also includes a first telescopic frame 3 stretched out along the left and right sides of the fixed mount 1, a second telescopic frame 2 stretched out along the rear end of the fixed mount 1, The protruding length of the first telescopic frame 3 and the second telescopic frame 2 is adjustable, and the sum of the length of the fixed frame 1 and the protruding length of the second telescopic frame 2 is greater than the front and rear shear walls 8 of the elevator shaft The distance between the fixed frame 1 and the front and rear shear walls 8 of the elevator shaft is obliquely placed in such a way that the rear end is higher than the front end.

As shown in Figures 4 and 5, the telescopic frame 3 is provided with a locking bolt 4, and the locking bolt 4 passes through the locking groove 5 on the fixed frame 1; the first telescopic frame 3 and the second telescopic frame 2 are provided with scale marks 6. Guide rail 7 adopts square steel to be welded on the fixed frame 1 and makes.

As shown in FIG. 6 , the bayonet 10 is formed by extending the two middle guide rails 701 of the second telescopic frame 2 along the front end of the fixed frame 1 .

The working principle of the present utility model is as follows: adjust the extension distance of the second telescopic frame 2 according to the length of the elevator shaft, the sum of the length of the fixed frame 1 and the extension length of the second telescopic frame 2 is greater than the shear force before and after the elevator shaft Wall 8 spacing; bayonet 10 is placed on the floor of elevator door 9 lower parts, and the other end of elevator shaft safety protection device is put into elevator shaft; the rear end of second telescopic frame 2 leans on shear wall 8, and fixing frame 1 obtains Fix, fix the end of the bayonet 10 on the floor through expansion nails; adjust the extension distance of the first telescopic frame 3, so that the outer ends of the telescopic frame 3 are close to the shear walls 8 on the left and right sides and locked; Lay mesh panels or planks above the safety protection device; after the construction is completed, clean the upper surface of the elevator shaft safety protection device, shrink the first shrinkable telescopic frame 3, adjust the width of the elevator shaft safety protection device to the minimum width and lock it, from the elevator Take out the elevator shaft safety protection device in the door 9, and complete the dismantling.

Claims (6)

1. a kind of safety protection device for elevator hoistway includes the bayonet (10) of fixed frame (1) and the fixed frame (1) front end, institute Floor of the bayonet (10) for blocking elevator door (9) lower part is stated, the width of the fixed frame (1) is more than the width of elevator door (9), It is characterized in that：Further include the first expansion bracket (3) stretched out at left and right sides of the fixed frame (1), after the fixed frame (1) The second expansion bracket (2) stretched out is held, the length of the stretching of first expansion bracket (3) and the second expansion bracket (2) is adjustable, described solid Determine front and back shear wall (8) spacing that the sum of the length of frame (1) and the extension elongation of the second expansion bracket (2) are more than elevator shaft, The fixed frame (1) is by between rear end in a manner of front end higher than the front and back shear wall (8) of elevator shaft is inclined in.

2. a kind of safety protection device for elevator hoistway as described in claim 1, it is characterised in that：Pacify on the fixed frame (1) Equipped with guide rail (7), first expansion bracket (3) and second expansion bracket (2) are mounted in the guide rail (7).

3. a kind of safety protection device for elevator hoistway as described in any one of claims 1 or 2, it is characterised in that：The card Mouth (10) is that two intermediate rails (701) of second expansion bracket (2) extend along fixed frame (1) front end.

4. a kind of safety protection device for elevator hoistway as described in any one of claims 1 or 2, it is characterised in that：Described Clamping screw (4) is provided on one expansion bracket (3) and second expansion bracket (2), the clamping screw (4) passes through the fixation Locking slot (5) on frame (1).

5. a kind of safety protection device for elevator hoistway as described in any one of claims 1 or 2, it is characterised in that：Described It is provided with graduation mark (6) on one expansion bracket (3) and second expansion bracket (2).

6. a kind of safety protection device for elevator hoistway as claimed in claim 2, it is characterised in that：Guide rail (7) the use side Steel is welded on fixed frame (1) and is made.