CN211422434U - High-efficient type prevents fire door tilting mechanism - Google Patents

Abstract

The utility model discloses a high-efficiency fire-proof door turning mechanism, which comprises two door leaves and a door frame, two inner walls of the door frame are connected with two hinges by screws, and one side outer walls of the two door leaves are respectively connected to the door frame by hinges, so the One side outer wall of the door frame is fixed with a smoke alarm through threads, one side outer wall of the door leaf is fixed with two door handles by bolts, one side outer wall of the door leaf is provided with a sliding structure, and the sliding structure includes two sliding column, two sliding grooves and two fixing rods, the two sliding grooves are opened on the front outer walls of the two door leaves, and the outer walls at both ends of the two fixing rods are fixed to the inner walls on both sides of the sliding groove by bolts, And the two fixing rods pass through the center of the two sliding columns. The utility model changes the mode of using hydraulic or electromagnet closers, saves energy, protects the environment and facilitates passage, and at the same time effectively prevents the fire from spreading outwards.

Description

High-efficiency fire door turning mechanism

technical field

The utility model relates to the technical field of fire protection, in particular to a high-efficiency fire door turning mechanism.

Background technique

In the prior art, a fire door refers to a door that can meet the requirements of fire resistance, integrity and heat insulation within a certain period of time. Fire doors are common facilities for fire emergency. In case of fire, by closing fire doors to prevent the spread of fire, it can maintain the fire-resistant integrity of escape passages and provide escape routes. In order to make the passage of users more convenient, and to obtain ventilation and lighting, In the event of a dangerous situation such as a fire, the normally open fire door can be closed in time, so the electric door closer came into being.

After searching, the Chinese patent application number is 201821830978.0, which discloses a new type of electric door closing mechanism for fire doors, including electromagnet assembly, control slider, buckle, base, rotating plate, reset button, positioning slider, bayonet and compression A spring, the base is fixed in the shell, and a limit block 1 and a limit block 2 are arranged on the base to respectively limit the positions of the positioning slider and the control slider. The positioning slider is designed with a positioning groove and installed with a permanent magnet , the rotating plate and the buckle are installed on the base through the pin, the upper end of the buckle is designed with an opening, the middle part is designed with a card slot, one end of the electromagnet core is installed with a screw and a retaining ring, and the screw is installed on the buckle In the opening at the upper end, the movement of the iron core can push the buckle to rotate, and the control slider can indirectly control the rotation of the buckle. Manual operation of the button is required to use the door to close.

Utility model content

The purpose of the utility model is to propose a high-efficiency fire door flipping mechanism in order to solve the shortcomings in the prior art.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A high-efficiency fire door flipping mechanism includes two door leaves and a door frame, the inner walls on both sides of the door frame are connected with two hinges through screws, and the outer walls of one side of the two door leaves are respectively connected to the door frame through hinges, and one side of the door frame is connected to the door frame. The outer wall is fixed with a smoke alarm through threads, two door handles are fixed with bolts on one side outer wall of the door leaf, and one side outer wall of the door leaf is provided with a sliding structure.

As a further solution of the present invention, the sliding structure includes two sliding columns, two sliding grooves and two fixing rods, the two sliding grooves are opened on the front outer walls of the two door leaves, and the two fixed The outer walls of both ends of the rod are fixed to the inner walls of the sliding slot on both sides by bolts, and the two fixing rods pass through the center of the two sliding columns, and the sliding columns and the fixing rods form a sliding fit.

As a further solution of the present invention, the two outer walls of the two sliding columns are provided with installation holes, and the inner walls of the installation holes are connected with telescopic rods through rotating shafts.

As a further solution of the present invention, one side outer wall of the door frame is fixed with two bases by bolts, and a door closer is welded on one side outer wall of the two bases.

As a further solution of the present invention, the extension end of the telescopic rod is rotatably connected with a rotating arm, and the outer wall of one end of the rotating arm and the outer wall of one end of the telescopic rod form a rotating fit through the rotating shaft.

As a further solution of the present utility model: the inner walls of the door closer are connected with the same toothed rotating shaft through bearings, and one end of the toothed rotating shaft is rotatably connected to the other end of the rotating arm, and the circumferential outer wall of the toothed rotating shaft Mesh with a rack.

As a further solution of the present invention, a groove is formed at the bottom of the inner wall of the door closer, a fixing column is fixed on the inner wall of the groove by bolts, the other end of the fixing column penetrates a casing, and the casing slides up and down through the fixing column.

As a further solution of the present invention, the same spring is welded to the top inner wall of the door closer and the top outer wall of the housing.

Compared with the prior art, the utility model provides a high-efficiency fire door flipping mechanism, which has the following beneficial effects:

1. The reversing mechanism of the fire door is provided with a spring, which is controlled by the telescopic control of the spring force or the closing of the door in reverse. When the spring is not stressed, it is usually unfolded. A condition in which a fire spreads outwards when it occurs.

2. This is used for the reversing mechanism of the fire door. By setting the fixed column inside the shell, the shell under pressure moves up and down through the fixed column, which changes the mode of using hydraulic or electromagnet closers, saving energy, environmental protection and convenient passage.

3. The fire door flip mechanism can monitor and detect the presence of smoke in real time by setting a smoke alarm. Once smoke is detected, it can output an alarm sound, so that people can know the fire situation as soon as possible and put out the fire in the bud.

The parts not involved in the device are the same as the prior art or can be realized by adopting the prior art. The utility model has a simple structure and is convenient to operate.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the high-efficiency type fire door turning mechanism proposed by the utility model;

Fig. 2 is the side view structure schematic diagram of the high-efficiency fire door turning mechanism proposed by the utility model;

3 is a schematic cross-sectional structural diagram of the door closer of the high-efficiency fire door flipping mechanism proposed by the utility model;

FIG. 4 is a schematic view of the rear structure of the casing of the high-efficiency fire door flipping mechanism proposed by the present invention.

In the picture: 1- door leaf, 2- hinge, 3- door frame, 4- door closer, 5- base, 6- sliding column, 7- sliding groove, 8- toothed shaft, 9- smoke alarm, 10- fixed Rod, 11-door handle, 12-spring, 14-telescopic rod, 16-rotary arm, 17-housing, 18-rack.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

The high-efficiency fire door reversing mechanism, in order to detect fire in time and facilitate passage in the event of fire and other dangerous situations, as shown in Figure 1, includes two door leaves 1 and a door frame 3, and the inner walls on both sides of the door frame 3 are connected by screws. There are two hinges 2, one side outer wall of the two door leaves 1 is respectively connected to the door frame 3 through the hinge 2, the one side outer wall of the door frame 3 is fixed with a smoke alarm 9 through threads, and one side outer wall of the door leaf 1 is bolted. Two door handles 11 are fixed, and one side outer wall of the door leaf 1 is provided with a sliding structure.

In order to make the door leaf 1 and the door frame 3 have a linkage relationship, as shown in Figures 1 and 2, the sliding structure includes two sliding columns 6, two sliding grooves 7 and two fixing rods 10. The two sliding grooves 7 are both open on the front outer wall of the door leaf 1, the outer walls at both ends of the two fixing rods 10 are fixed to the inner walls on both sides of the sliding groove 7 by bolts, and the two fixing rods 10 pass through the two sliding columns 6. At the center, the sliding column 6 and the fixing rod 10 form a sliding fit.

In order to be able to close the door in time regardless of the angle when the door is opened, as shown in FIG. 2 , one outer wall of the two sliding columns 6 is provided with a mounting hole, and the inner wall of the mounting hole is rotatably connected with a telescopic rod through the rotating shaft 14. The telescopic rod 14 automatically expands and contracts according to the opening range of the door.

In order that the door can be automatically closed after opening, as shown in FIG. 1 , two bases 5 are fixed on one side outer wall of the door frame 3 by bolts, and one side outer wall of the two bases 5 is welded with a door closer 4 .

In order to be able to control the sliding structure, as shown in FIGS. 2 and 3 , the extension end of the telescopic rod 14 is rotatably connected with a rotating arm 16 .

In order to drive the rotating arm to rotate and close the door, as shown in FIGS. 3 and 4 , the inner walls on both sides of the door closer 4 are rotatably connected to the same toothed shaft 8 through bearings, and one end of the toothed shaft 8 is rotatably connected At the other end of the rotating arm 16 , a rack 18 is engaged with the circumferential outer wall of the toothed rotating shaft 8 .

In order for the casing 17 to move up and down freely, as shown in FIG. 3 , a groove is formed at the bottom of the inner wall of the door closer 4 , and the inner wall of the groove is fixed with a fixing column by bolts, and the other end of the fixing column penetrates the casing 17 , The housing 17 slides up and down through the fixed column.

In order for the door closer 4 to be able to compress and expand, as shown in FIG. 3 , the same spring 12 is welded to the top inner wall of the door closer 4 and the top outer wall of the housing 17 .

Working principle: Once smoke is detected, the smoke alarm 9 will sound an alarm, the door frame 3 and the door leaf 1 are connected by the hinge 2, when people push the door handle 11 to open the door, the linkage action is generated, and the sliding column in the sliding slot 7 6. Slide the fixing rod 10 to the side close to the door frame 3. Since the door leaf 1 is pushed inward, the telescopic rod 14 fixedly connected in the sliding column 6 will be shortened, and the telescopic rod 14 will be rotatably connected to the door closer. 4. The rotating arm 16 of the outer wall rotates accordingly, driving the toothed rotating shaft 8 connected to it to rotate to the right, and while the toothed rotating shaft 8 rotates, the toothed rack 18 connected with it drives the casing 17 to pass through the fixed column It rises slowly and compresses the spring 12. When the person walks past, the elasticity of the spring 12 releases the elastic force and stretches, and squeezes the casing 17 downward. Due to the force on the casing 17, the toothed shaft 8 connected to the rack 18 on the inner wall of the casing 17 When the door is closed, the telescopic rod 14 will be extended, and the sliding column 6 will move away from the door frame 3 Sliding, the fixed seat 5 is fixedly connected to the door closer 4 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (8)

1. Fire door tilting mechanism is prevented to high-efficient type, including two door leafs (1) and door frame (3), its characterized in that, the both sides inner wall of door frame (3) all has two hinges (2) through screw connection, and one side outer wall of two door leafs (1) is connected in door frame (3) through hinge (2) respectively, one side outer wall of door frame (3) has smoke alarm (9) through the threaded fixation, one side outer wall of door leaf (1) has two doorknobs (11) through the bolt fastening, one side outer wall of door leaf (1) is provided with sliding construction.

2. The efficient fire door turnover mechanism as claimed in claim 1, wherein the sliding structure comprises two sliding columns (6), two sliding grooves (7) and two fixing rods (10), the two sliding grooves (7) are opened at the outer walls of the front faces of the two door leaves (1), the outer walls of the two ends of the two fixing rods (10) are fixed at the inner walls of the two sides of the sliding grooves (7) through bolts, the two fixing rods (10) penetrate through the centers of the two sliding columns (6), and the sliding columns (6) and the fixing rods (10) form a sliding fit.

3. The high-efficiency turnover mechanism for the fire door as claimed in claim 2, wherein the two sliding columns (6) are provided with mounting holes on the outer wall at one side, and the inner walls of the mounting holes are rotatably connected with telescopic rods (14) through rotating shafts.

4. The high-efficiency turnover mechanism for the fire door as claimed in claim 3, wherein two bases (5) are fixed on the outer wall of one side of the door frame (3) through bolts, and a door closer (4) is welded on the outer wall of one side of each of the two bases (5).

5. The efficient turnover mechanism for the fire door as claimed in claim 4, wherein the extension end of the telescopic rod (14) is rotatably connected with a rotating arm (16), and the outer wall of one end of the rotating arm (16) and the outer wall of one end of the telescopic rod (14) are rotatably matched through a rotating shaft.

6. The high-efficiency turnover mechanism for the fire door as claimed in claim 5, wherein the inner walls of the two sides of the door closer (4) are rotatably connected with the same toothed rotating shaft (8) through bearings, one end of the toothed rotating shaft (8) is rotatably connected with the other end of the rotating arm (16), and the outer wall of the circumference of the toothed rotating shaft (8) is engaged with the rack (18).

7. The efficient turnover mechanism for the fire door as claimed in claim 6, wherein a groove is formed in the bottom of the inner wall of the door closer (4), a fixing column is fixed to the inner wall of the groove through a bolt, a shell (17) penetrates through one end of the fixing column, and the shell (17) slides up and down through the fixing column.

8. The highly efficient fire door turnover mechanism as claimed in claim 7, wherein the same spring (12) is welded to both the top inner wall of the door closer (4) and the top outer wall of the housing (17).

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