CN212317797U

CN212317797U - Fire door is prevented in pivot

Info

Publication number: CN212317797U
Application number: CN202020762227.0U
Authority: CN
Inventors: 杨宜林; 盛井军; 王伟
Original assignee: Zhengzhou Shenyu Fireproof Products Co ltd
Current assignee: Zhengzhou Shenyu Fireproof Products Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2021-01-08
Anticipated expiration: 2030-05-09

Abstract

The utility model relates to the technical field of fireproof doors, and discloses a rotating shaft fireproof door, which comprises a door frame and a door leaf, wherein one side of the door leaf is rotatably connected with the door frame, the door frame comprises two crossbeams and two longitudinal beams, the crossbeams are perpendicular to the longitudinal beams, the adjacent crossbeams and the adjacent longitudinal beams are fixedly connected, the two longitudinal beams are respectively provided with a sealing rod along the length direction, and the two sealing rods are connected with the corresponding longitudinal beams in a sliding manner along the direction of mutually keeping away from or approaching to each other; the sealing rod is provided with an elastic part, and the door leaf is provided with a fireproof lock for locking the door leaf to rotate. Through setting up door frame, door leaf, crossbeam, longeron, sealing rod, fireproof lock, when closing the door leaf, the sealing rod is with the door leaf butt under the effect of elastic component to make the sealing rod sealed with the gap department of door leaf and door frame, and then increase the leakproofness of preventing fire door, and then increase the safety protection performance and the fire prevention effect of preventing fire door.

Description

Fire door is prevented in pivot

Technical Field

The utility model belongs to the technical field of fire door's technique and specifically relates to a fire door is prevented in pivot.

Background

A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation within a certain period of time. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof subareas, evacuation staircases, vertical shafts and the like. The fireproof door has the functions of a common door, has the functions of preventing the fire from spreading and the smoke from diffusing, and can prevent the fire from spreading within a certain time to ensure the evacuation of people.

In the prior art, for example, chinese utility model patent with publication number CN205876107U discloses a fire door, which includes a door frame, a door leaf and an anti-misoperation locking mechanism for limiting the door leaf from rotating around its door axis towards the closing direction of the door leaf, wherein the door frame includes two oppositely disposed crossbeams and two oppositely disposed longitudinal beams, the crossbeams are perpendicular to the longitudinal beams, and the adjacent crossbeams are fixedly connected with the longitudinal beams; the door leaf is arranged in the door frame, the upper end and the lower end of the door leaf are respectively connected with the two cross beams in a rotating mode, the axial lead of the door leaf rotating relative to the cross beams is parallel to the longitudinal beams, and the anti-misoperation locking mechanism is arranged on the door leaf. The anti-misoperation locking mechanism is arranged on the fireproof door, the door leaf can be locked after being opened, the door leaf is prevented from being closed due to negligence, and a life passage is kept unblocked at any time when needing to be opened.

The above prior art solutions have the following drawbacks: when the fireproof door is installed, a gap exists between the door frame and the door leaf, when a fire disaster occurs, the flame or the dense smoke easily escapes from the gap, and the safety protection performance and the fireproof effect of the fireproof door are reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a fire door is prevented in pivot for the sealing rod is sealed with the gap department of door leaf and door frame, and then increases the leakproofness of preventing fire door, and then increases the safety protection performance and the fire prevention effect of preventing fire door.

The utility model aims at realizing through the following technical scheme:

a rotating shaft fireproof door comprises a door frame and a door leaf, wherein one side of the door leaf is rotatably connected with the door frame, the door frame comprises two cross beams and two longitudinal beams, the cross beams are perpendicular to the longitudinal beams, and the adjacent cross beams and the longitudinal beams are fixedly connected; the two longitudinal beams are provided with sealing rods along the length direction, and the two sealing rods are connected with the corresponding longitudinal beams in a sliding manner along the direction of mutually far away or close; the sealing rod is provided with an elastic piece, and the door leaf is provided with a fireproof lock for locking the door leaf to rotate.

By adopting the technical scheme, when a user closes the fireproof door, the door leaf and the door frame rotate relatively, and the sealing rod and the door leaf move relatively along with the rotation of the door leaf, so that the sealing rod and the longitudinal beam slide relatively; when closing the door leaf, the sealing rod is with the door leaf butt under the effect of elastic component to make the sealing rod sealed with the gap department of door leaf and door frame, and then increase the leakproofness of preventing fire door, and then increase the safety protection performance and the fire prevention effect of preventing fire door.

The present invention may be further configured in a preferred embodiment as: the two crossbeams are both provided with a rotating shaft, and two ends of the rotating shaft are respectively connected with the door leaf and the crossbeam in a rotating way; two the crossbeam and door leaf correspond the pivot and are provided with the pivot backing plate, and the pivot backing plate cup joints with the pivot.

Through adopting above-mentioned technical scheme, when door leaf and door frame take place relative rotation, the relative rotation takes place for pivot and door leaf and door frame, and then makes pivot backing plate and pivot take place relative rotation, increases the life who prevents fire door.

The present invention may be further configured in a preferred embodiment as: the sealing rod comprises a transverse plate and a longitudinal plate, and the transverse plate and the longitudinal plate are vertically and fixedly connected; and the two longitudinal beams are provided with T-shaped grooves towards the direction of approaching to or departing from each other, the transverse plate is fixedly provided with T-shaped blocks at the positions corresponding to the T-shaped grooves, and the T-shaped blocks are in sliding connection with the T-shaped grooves.

Through adopting above-mentioned technical scheme, when sealing rod and longeron take place relative slip, the T type piece on the diaphragm takes place relative slip with the T type groove on the longeron, and then stability when increasing the sealing rod and sliding.

The present invention may be further configured in a preferred embodiment as: the elastic piece is a first spring, and two ends of the first spring are fixedly connected with the longitudinal plate and the longitudinal beam respectively.

Through adopting above-mentioned technical scheme, after closing the door leaf, the vertical plate on the closing plate is with the door leaf butt under the effect of first spring, and then makes vertical plate on the sealing rod sealed with the door leaf all the time, and then increases the sealed effect of preventing fire door.

The present invention may be further configured in a preferred embodiment as: the two sides of the door leaf and the two longitudinal plates are correspondingly provided with first grooves, second springs and balls are arranged in the first grooves on the door leaf, one ends of the second springs are fixedly connected with the first grooves on the door leaf, the other ends of the second springs are fixedly connected with the balls, and the balls are clamped with the first grooves on the longitudinal plates.

Through adopting above-mentioned technical scheme, when door leaf and vertical plate take place to the relative slip, ball and vertical plate take place the relative slip, and after closing the fire door, the ball and the recess joint on the vertical plate through setting up the ball, have not only reduced the frictional force between vertical plate and the door leaf, have still increased the locking effect when preventing the fire door locking.

The present invention may be further configured in a preferred embodiment as: and a cover sealing plate is fixedly arranged at one end of the door leaf far away from the rotating shaft and is abutted against the transverse plate.

Through adopting above-mentioned technical scheme, closing the fire door after, the lid shrouding on the door leaf and diaphragm butt have further increased the sealed effect of preventing fire door.

The present invention may be further configured in a preferred embodiment as: the inside of door leaf is the cavity state, and the inside fire door core that is provided with of door leaf.

Through adopting above-mentioned technical scheme, prevent that fire door installation time is longer after, the door leaf can be because of ageing production deformation, and the deformation of door leaf can be reduced on the one hand to the fire door core, and on the other hand can increase the fire prevention effect of preventing fire door when taking place the house.

The present invention may be further configured in a preferred embodiment as: and a reinforcing plate is fixedly arranged at the position of the door leaf corresponding to the rotating shaft and is arranged in the door leaf.

Through adopting above-mentioned technical scheme, when often opening and closing prevent fire door, the position of impaired position for the door leaf installation pivot is easiest, installs the intensity that reinforcing plate can increase door leaf pivot department in pivot department, and then increases the life of door leaf.

The present invention may be further configured in a preferred embodiment as: and the two cross beams and the longitudinal beam are fixedly provided with fireproof expansion sealing pieces along the length direction of the cross beams and the longitudinal beam, and the fireproof expansion sealing pieces are abutted to the door leaf.

Through adopting above-mentioned technical scheme, when taking place the fire house, the inflation of being heated of fire prevention inflation sealing member for the seam between door leaf and the door frame is further sealed to fire prevention inflation sealing member, and then further increases the sealed effect of preventing fire door and prevents the security of fire door.

The present invention may be further configured in a preferred embodiment as: and the two cross beams and the longitudinal beam are both provided with second grooves along the length direction of the cross beams and the longitudinal beam, and the groove bottoms of the second grooves are clamped with the fireproof expansion sealing elements.

Through adopting above-mentioned technical scheme, closing the fire door after, fire prevention inflation sealing member and door leaf butt, fire prevention inflation sealing member installs and can reduce the positive gap with the door frame of door leaf in the second recess, further increases the sealed effect of preventing fire door.

To sum up, the utility model discloses a following at least one useful technological effect:

1. by arranging the door frame, the door leaf, the cross beam, the longitudinal beam, the sealing rod and the fireproof lock, when a user closes the fireproof door, the door leaf and the door frame rotate relatively, and the sealing rod and the door leaf move relatively along with the rotation of the door leaf, so that the sealing rod and the longitudinal beam slide relatively; when the upper door leaf is closed, the sealing rod is abutted against the door leaf under the action of the elastic piece, so that the sealing rod seals a gap between the door leaf and the door frame, the sealing performance of the fireproof door is further improved, and the safety protection performance and the fireproof effect of the fireproof door are further improved;

2. by arranging the rotating shaft and the rotating shaft base plate, when the door leaf and the door frame rotate relatively, the rotating shaft, the door leaf and the door frame rotate relatively, so that the rotating shaft base plate and the rotating shaft rotate relatively, and the service life of the fireproof door is prolonged;

3. through setting up diaphragm, vertical plate, T type groove and T type piece, when sealing rod and longeron take place the relative slip, the T type piece on the diaphragm takes place the relative slip with the T type groove on the longeron, and then stability when increasing the sealing rod and sliding.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a sectional view of the present invention, mainly showing the internal structure of the door leaf;

FIG. 3 is a cross-sectional view of the present invention, primarily illustrating the sealing rod;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is an enlarged view of portion B of FIG. 2;

fig. 6 is an enlarged view of a portion C in fig. 1.

Reference numeral, 100, a door frame; 110. a cross beam; 111. a fire resistant intumescent seal; 120. a stringer; 121. a T-shaped groove; 122. a second groove; 200. a first spring; 300. a door leaf; 310. a fire door core panel; 320. covering a sealing plate; 330. a first groove; 340. a second spring; 350. a ball bearing; 360. a reinforcing plate; 400. a sealing rod; 410. a longitudinal plate; 420. a transverse plate; 421. a T-shaped block; 500. a fireproof lock; 600. a rotating shaft; 610. the pivot backing plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the fireproof door with a rotating shaft comprises a door frame 100 and a door leaf 300, wherein one side of the door leaf 300 is rotatably connected with the door frame 100, the door frame 100 comprises two cross beams 110 and two longitudinal beams 120, the cross sections of the two cross beams 110 are both L-shaped, the cross beams 110 are perpendicular to the longitudinal beams 120, and the adjacent cross beams 110 and the longitudinal beams 120 are welded together. Two crossbeams 110 and longeron 120 have all seted up second recess 122 along its length direction, and it has fire prevention inflation sealing member 111 to paste in the second recess 122, and fire prevention inflation sealing member 111 is the fire prevention strip, and the side of fire prevention strip and the cell wall joint of second recess 122, and the fire prevention strip and door leaf 300 butt. The two longitudinal beams 120 are respectively provided with a sealing rod 400 along the length direction, and the two sealing rods 400 are connected with the corresponding longitudinal beams 120 in a sliding mode along the direction of moving away from or approaching to each other. The sealing rod 400 comprises a transverse plate 420 and a longitudinal plate 410 (refer to fig. 3), the transverse plate 420 and the longitudinal plate 410 are vertically welded together, the two longitudinal beams 120 are provided with a T-shaped groove 121 (refer to fig. 4) in the direction of approaching to or separating from each other, a T-shaped block 421 is fixedly installed at the position of the transverse plate 420 corresponding to the T-shaped groove 121, the T-shaped block 421 can be integrally formed with the transverse plate 420 or welded together, the integral forming is preferred, and the T-shaped block 421 is slidably connected with the T-shaped groove 121. The sealing rod 400 has an elastic member mounted on a longitudinal plate 410, the elastic member is a first spring 200, and both ends of the first spring 200 are welded to the longitudinal beam 120 and the longitudinal plate 410. The door 300 is provided with a fireproof lock 500 for locking the rotation of the door 300.

Referring to fig. 5, in order to prolong the service life of the fire door, two beams 110 are respectively provided with a rotating shaft 600, two ends of the rotating shaft 600 are respectively connected with the door leaf 300 and the beam 110 in a rotating manner, the positions of the beam 110 and the door leaf 300 corresponding to the rotating shaft 600 are welded with rotating shaft base plates 610, the rotating shaft base plates 610 are respectively arranged inside the beam 110 and the door leaf 300, and the rotating shaft base plates 610 are coaxially sleeved with the rotating shaft 600. The cover 320 is integrally formed at an end of the door 300 away from the rotating shaft 600, and the cover 320 abuts against the horizontal plate 420. The door 300 is hollow, and the door 300 is internally provided with a fireproof door core plate 310, and the fireproof door core plate 310 is made of asbestos material. The door 300 is welded with a C-shaped reinforcing plate 360 at a position corresponding to the rotating shaft 600, and the reinforcing plate 360 is arranged inside the door 300.

Referring to fig. 6, in order to reduce the friction between the door 300 and the door frame 100, first grooves 330 are correspondingly formed on both sides of the door 300 and the two vertical plates 410, a second spring 340 and a ball 350 are installed in the first groove 330 on the door 300, one end of the second spring 340 is welded to the bottom of the first groove 330 on the door 300, the other end of the second spring 340 is welded to the ball 350, and the ball 350 is engaged with the first groove 330 on the vertical plate 410.

The implementation principle of the embodiment is as follows: when the door 300 of the fire door is opened, the door 300 and the vertical plate 410 move relatively, so that the horizontal plate 420 and the longitudinal beam 120 slide relatively, the balls 350 on the door 300 and the vertical plate 410 rotate relatively, and the friction force between the door 300 and the vertical plate 410 is reduced. After the fireproof door is closed, the vertical plate 410 on the sealing rod 400 abuts against the door leaf 300 under the action of the first spring 200, and the ball 350 is clamped with the first groove 330 on the door leaf 300, so that the door leaf 300 is in seamless abutment with the door frame 100. In case of fire, the fire strip on the door frame 100 is thermally expanded, so that the gap between the door frame 100 and the door leaf 300 is eliminated, further increasing the sealing performance of the fire door.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a fire door is prevented to pivot, includes door frame (100) and door leaf (300), one side and door frame (100) of door leaf (300) are rotated and are connected, door frame (100) include two crossbeams (110) and two longerons (120), crossbeam (110) perpendicular to longeron (120) and adjacent crossbeam (110) and longeron (120) fixed connection, its characterized in that: the two longitudinal beams (120) are respectively provided with a sealing rod (400) along the length direction, and the two sealing rods (400) are connected with the corresponding longitudinal beams (120) in a sliding manner along the direction of mutually far away or close; the sealing rod (400) is provided with an elastic part, and the door leaf (300) is provided with a fireproof lock (500) for locking the door leaf (300) to rotate.

2. The fire door of claim 1, further comprising: the two beams (110) are respectively provided with a rotating shaft (600), and two ends of the rotating shaft (600) are respectively connected with the door leaf (300) and the beams (110) in a rotating manner; two crossbeam (110) and door leaf (300) correspond pivot (600) and are provided with pivot backing plate (610), and pivot backing plate (610) cup joints with pivot (600).

3. The fire door of claim 1, further comprising: the sealing rod (400) comprises a transverse plate (420) and a longitudinal plate (410), and the transverse plate (420) and the longitudinal plate (410) are vertically and fixedly connected; the two longitudinal beams (120) are provided with T-shaped grooves (121) towards the direction close to or away from each other, T-shaped blocks (421) are fixedly arranged on the transverse plates (420) corresponding to the positions of the T-shaped grooves (121), and the T-shaped blocks (421) are connected with the T-shaped grooves (121) in a sliding mode.

4. A fire door with a hinge according to claim 3, characterized in that: the elastic piece is a first spring (200), and two ends of the first spring (200) are respectively fixedly connected with the longitudinal plate (410) and the longitudinal beam (120).

5. The fire door of claim 4, further comprising: the two sides of the door leaf (300) and the two longitudinal plates (410) are correspondingly provided with first grooves (330), a second spring (340) and a ball (350) are arranged in the first groove (330) on the door leaf (300), one end of the second spring (340) is fixedly connected with the first groove (330) on the door leaf (300), the other end of the second spring (340) is fixedly connected with the ball (350), and the ball (350) is clamped with the first groove (330) on the longitudinal plates (410).

6. The fire door of claim 1, further comprising: one end, far away from the rotating shaft (600), of the door leaf (300) is fixedly provided with a cover sealing plate (320), and the cover sealing plate (320) is abutted to the transverse plate (420).

7. The fire door of claim 1, further comprising: the inside of door leaf (300) is the cavity state, and door leaf (300) inside is provided with fire door core board (310).

8. The fire door of claim 7, further comprising: the door leaf (300) is fixedly provided with a reinforcing plate (360) at a position corresponding to the rotating shaft (600), and the reinforcing plate (360) is arranged inside the door leaf (300).

9. The fire door of claim 1, further comprising: and fireproof expansion sealing pieces (111) are fixedly arranged on the two cross beams (110) and the longitudinal beam (120) along the length direction of the cross beams, and the fireproof expansion sealing pieces (111) are abutted against the door leaf (300).

10. The fire door of claim 9, further comprising: two second grooves (122) are formed in the cross beam (110) and the longitudinal beam (120) along the length direction of the cross beam, and the groove bottoms of the second grooves (122) are connected with the fireproof expansion sealing elements (111) in a clamping mode.