CN220621653U - Fire door is prevented to bright hinge - Google Patents

Abstract

The utility model relates to the field of fireproof doors, and particularly provides a clear hinge fireproof door. The fire door comprises a fire door main body, wherein a door closing assembly is arranged on the fire door main body and comprises a shell and a toothed plate seat, a second spring is arranged on one side of the interior of the shell, a first permanent magnet is arranged in the second spring, the position, close to the side wall of the shell, of the toothed plate seat, a second permanent magnet is arranged on one side, close to the second spring, of the toothed plate seat, the second spring, the first permanent magnet and the second permanent magnet are utilized, in the door closing process, namely, in the elastic recovery process of the first spring, restoring force can squeeze the toothed plate seat, when the door is about to be closed, the toothed plate seat bumps against the second spring to squeeze the second spring, the first spring and the second permanent magnet are gradually closed when the second spring is gradually compressed, and repel each other, and the second spring and the second permanent magnet are gradually buffered, so that the door is slowly closed, and the purposes of collision force and noise are avoided.

Description

Fire door is prevented to bright hinge

Technical Field

The utility model relates to the field of fireproof doors, in particular to a bright hinge fireproof door.

Background

The fireproof door is a fireproof partition which is arranged among fireproof partitions, evacuation stairwells, vertical shafts and the like and has certain fire resistance, has the function of preventing fire from spreading and smoke from spreading except the function of a common door, can prevent the fire from spreading within a certain time, ensures personnel evacuation, can be automatically closed through a door closer after being used, achieves the aim of automatically closing the door, and avoids and prevents the fire from spreading.

The applicant found that the following problems exist in practical use:

when the fireproof door is opened and closed at ordinary times, the original resistance is overlarge, a user needs to push the fireproof door open with great force, after the fireproof door is pushed open, the fireproof door is automatically closed under the action of the door closer, and the working principle of the door closer is as follows: when the door is opened, the door body drives the connecting rod to act and enables the transmission gear to rotate, the rack plunger is driven to move rightwards, the spring is compressed in the process of right movement of the plunger, hydraulic oil in the right cavity is also compressed, the check valve ball body on the left side of the plunger is opened under the action of oil pressure, hydraulic oil in the right cavity flows into the left cavity through the check valve, after the door opening process is finished, the accumulated elastic potential energy is released because the spring is compressed in the opening process, the plunger is pushed leftwards, the transmission gear and the door closer connecting rod are driven to rotate, and the door is closed, so that a slamming sound can be heard when the fireproof door is closed, the sound is very loud, the influence is bad, and the impact force on the door frame and the wall body is large.

Therefore, there is a need to provide a fire door with a living hinge that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the technical problems that a fireproof door is automatically closed under the action of a door closer, and when the fireproof door is closed, a slamming sound is heard, so that the fireproof door is quite loud, the influence is bad, the impact force on a door frame and a wall body is large, and the utility model provides the open hinge fireproof door aiming at the defects in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a bright hinge prevents fire door, includes prevents fire door main part, install the subassembly of closing the door in preventing fire door main part, the subassembly of closing the door includes shell, pinion rack, the second spring is installed to inside one side of shell, the inside of second spring is close to the position of shell lateral wall and is equipped with first permanent magnet, one side that the pinion rack is close to the second spring is equipped with the second permanent magnet.

Further set up, the inside opposite side of shell is fixed with the spring holder, install first spring on the spring holder, the end-to-end connection of first spring has the pinion rack seat, the front and back end of pinion rack seat is equipped with the slider for with shell sliding connection, keep the stability of pinion rack seat, the bottom of pinion rack seat is connected with the gear through rack meshing, the central point of gear puts fixedly with connecting axle.

Further set up, the outside of preventing fire door main part is equipped with the door frame, the door frame passes through the hinge and prevents fire door main part and is fixed, the hinge is the clear hinge, prevent fire door main part's surface is equipped with the door handle.

Further set up, prevent fire door main part's surface top is equipped with the fixing base, the top of fixing base is fixed with the connecting rod, the terminal and the connecting axle fixed connection of connecting rod for it is rotatory through connecting axle drive gear.

The first permanent magnet and the second permanent magnet are cuboid, the face of the first permanent magnet, which is close to the toothed plate seat, is N-pole, and the face of the second permanent magnet, which is far away from the toothed plate seat, is N-pole.

The elasticity of the first spring is larger than that of the second spring, and the wire diameter of the first spring is larger than that of the second spring.

The gear is meshed with the rack, and the gear penetrates through the shell through the connecting shaft.

Compared with the related art, the open hinge fireproof door provided by the utility model has the following beneficial effects:

the utility model provides a fire door with a clear hinge, which is characterized in that a second spring, a first permanent magnet and a second permanent magnet are arranged, after the fire door is closed, a toothed plate seat is reset under the action of the first spring, the force of the second spring is firstly stressed, if the elastic force of the first spring is reduced, after the second spring is compressed, the second permanent magnet is close to the first permanent magnet, the same magnetic poles repel each other, the elastic force of the first spring is weakened, when the fire door is about to be closed, the restoring force of the first spring is unloaded, so that the closing force of the door is weakened, and the elastic force of the first spring is larger than the elastic force of the second spring and the repulsive force between the first permanent magnet and the second permanent magnet, therefore, the door can be slowly closed, the condition of strong collision of the door is avoided, the load on a door frame and a wall body is reduced while noise is weakened, and the service life of the door is prolonged.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a fire door with a hinge according to the present utility model;

FIG. 2 is an internal cross-sectional view of the door closure assembly of the present utility model;

fig. 3 is a schematic diagram of a second spring state structure after the door is opened.

Reference numerals in the drawings: 1. a fire door body; 2. a door frame; 3. a hinge; 4. a door handle; 5. a door closing assembly; 51. a housing; 52. a spring seat; 53. a first spring; 54. a toothed plate seat; 55. a rack; 56. a gear; 57. a second spring; 58. a first permanent magnet; 59. a second permanent magnet; 6. a connecting rod; 7. a fixing seat.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Exemplary embodiments of the present utility model are illustrated in the accompanying drawings.

Examples:

as shown in fig. 1, 2 and 3, the fire door with the open hinge comprises a fire door main body 1, a door closing component 5 is installed on the fire door main body 1, the door closing component 5 is a door closer, the door closing component 5 comprises a shell 51 and a toothed plate seat 54, a second spring 57 is installed on one side of the interior of the shell 51, a first permanent magnet 58 is arranged at a position, close to the side wall of the shell 51, of the second spring 57, a second permanent magnet 59 is arranged on one side, close to the second spring 57, of the toothed plate seat 54, the first permanent magnet 58 and the second permanent magnet 59 are cuboid, one surface, close to the toothed plate seat 54, of the first permanent magnet 58 is N-pole, one surface, far away from the toothed plate seat 54, of the first permanent magnet 59 is N-pole, the elasticity of the first spring 53 is larger than the elasticity of the second spring 57, the line diameter of the first spring 53 is larger than that of the second spring 57, after a person passes, the pressure of the first spring 53 disappears, the toothed plate seat 54 is reset under the action of the first spring 53, the force of the second spring 57 is firstly stressed, the force of the second spring 53 is reduced, the force of the permanent magnet 53 is reduced if the second permanent magnet 57 is compressed, the second permanent magnet 59 is compressed, the force is reduced, and the force of the first permanent magnet 53 is opposite to the first force is reduced, and the force is then the first force is reduced, and the force is opposite to the first force, and the force of the first force is, and the second force is, and 53 is closed, and is closed.

As shown in fig. 2 and 3, a spring seat 52 is fixed on the other side of the inside of the casing 51, a first spring 53 is installed on the spring seat 52, a toothed plate seat 54 is connected to the end of the first spring 53, and a slide block is arranged at the front end and the rear end of the toothed plate seat 54 and is used for being slidably connected with the casing 51, so that stability of the toothed plate seat 54 is maintained, the toothed plate seat 54 moves left and right along the casing 51, a gear 56 is connected to the bottom of the toothed plate seat 54 in a meshed manner through a rack 55, a connecting shaft is fixed at the central position of the gear 56, and hydraulic oil is injected into the casing 51, so that stability of opening and closing of the fireproof door main body 1 is improved.

As shown in fig. 1, the outside of preventing fire door main part 1 is equipped with door frame 2, and door frame 2 is fixed with preventing fire door main part 1 through hinge 3, has improved preventing fire door main part 1's stability, conveniently installs preventing fire door main part 1, and hinge 3 is the open hinge, prevents fire door main part 1's surface and is equipped with door handle 4, convenient operation can open preventing fire door main part 1 through door handle 4.

As shown in fig. 1, 2 and 3, a fixing seat 7 is arranged above the outer surface of the fireproof door main body 1, a connecting rod 6 is fixed at the top of the fixing seat 7, the tail end of the connecting rod 6 is fixedly connected with a connecting shaft and used for driving a gear 56 to rotate through the connecting shaft, the gear 56 is meshed with a rack 55 and connected, and the gear 56 penetrates through the shell 51 through the connecting shaft.

In implementation, install fire door main part 1 and door frame 2 to link together through hinge 3, afterwards install the shell in the door closure subassembly 5 on door frame 2, fixing base 7 installs on fire door main part 1, after the user opens fire door main part 1, can drive fixing base 7 and remove, thereby make the connecting axle rotatory through connecting rod 6, and then drive gear 56 rotation, make rack 55 drive pinion stand 54 remove, extrude first spring 53, the elasticity of second spring 57 releases, fire door main part 1 opens, after the people passes, the pressure of first spring 53 disappears, pinion stand 54 is reset under the effect of first spring 53, at first can receive the power of second spring 57, reduce if the elasticity of first spring 53, after second spring 57 compresses, second permanent magnet 59 is close to with first permanent magnet 58, the same magnetic pole is mutually exclusive, the secondary weakens the elasticity of first spring 53, when about to close, restore to the power with first spring 53, thereby make the door close force, because the elasticity of first spring 53 weakens the elasticity and is greater than the second permanent magnet 58, the second permanent magnet can be slow to close between the door closure force of second spring 53.

The technical scheme has the advantages in practical application including but not limited to the following points:

1. the door closing process, namely, the elastic recovery process of the first spring 53, wherein the restoring force presses the toothed plate seat 54, when the door is about to be closed, the toothed plate seat 54 contacts the second spring 57, presses the second spring 57, and buffers the door closing force for the first time;

2. when the second spring 57 is gradually compressed, the first permanent magnet 58 and the second permanent magnet 59 are gradually moved closer together, and repel each other, and the force of closing the door is buffered for the second time, so that the door is slowly closed, thereby grasping the purpose of avoiding the impact force and noise.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A clear hinge fireproof door, comprising a fireproof door main body (1), characterized in that: install on fire door main part (1) and close door subassembly (5), close door subassembly (5) including shell (51), pinion rack seat (54), second spring (57) are installed to inside one side of shell (51), the inside of second spring (57) is close to the position of shell (51) lateral wall and is equipped with first permanent magnet (58), one side that pinion rack seat (54) is close to second spring (57) is equipped with second permanent magnet (59).

2. The fire door with the open hinge according to claim 1, wherein a spring seat (52) is fixed on the other side of the interior of the housing (51), a first spring (53) is installed on the spring seat (52), a toothed plate seat (54) is connected to the end of the first spring (53), a gear (56) is connected to the bottom of the toothed plate seat (54) in a meshed manner through a rack (55), and a connecting shaft is fixed to the center position of the gear (56).

3. The open-hinge fireproof door according to claim 1, wherein a door frame (2) is arranged on the outer side of the fireproof door body (1), the door frame (2) is fixed with the fireproof door body (1) through a hinge (3), the hinge (3) is an open hinge, and a door handle (4) is arranged on the outer surface of the fireproof door body (1).

4. The open hinge fireproof door according to claim 1, wherein a fixing seat (7) is arranged above the outer surface of the fireproof door main body (1), a connecting rod (6) is fixed at the top of the fixing seat (7), and the tail end of the connecting rod (6) is fixedly connected with a connecting shaft and used for driving a gear (56) to rotate through the connecting shaft.

5. The fire door of claim 1, wherein the first permanent magnet (58) and the second permanent magnet (59) are rectangular, and a surface of the first permanent magnet (58) close to the toothed plate seat (54) is N-pole, and a surface of the second permanent magnet (59) far from the toothed plate seat (54) is N-pole.

6. A living hinge fire door according to claim 2, characterized in that the first spring (53) has a higher elasticity than the second spring (57), and the first spring (53) has a larger wire diameter than the second spring (57).

7. A fire door with a living hinge according to claim 2, characterized in that the gear (56) is connected with the rack (55) in a meshing manner, and the gear (56) penetrates the housing (51) through the connecting shaft.