CN212389220U - Fireproof door for electric comprehensive building of power plant - Google Patents

Abstract

The utility model discloses a fireproof door for power plant electrical comprehensive building, which comprises a door frame, a right door, a left door, a door handle, a baffle, a door closer, a hinge, a door locking column, a box body, a transmission shaft, a limiting plate, a large friction gear, a large shaft, a small friction gear, a small shaft, a front plate, a rotating gear, a ratchet gear, a pawl, a rotating shaft, a rack, a spring, a round shaft hole, a slip ring, a claw, a reset spring and a transmission gear; the automatic door closing device has the advantages that through the structural design of the transmission shaft, the spring, the claw, the reset spring, the small friction gear, the large friction gear, the small transmission shaft, the large transmission shaft and the ratchet mechanism, the delay function of the automatic door closing time of the fireproof door is realized, and the efficiency of passing by multiple persons under dangerous conditions is improved; through the structural design of baffle, bracing piece, haulage rope, spool and book curtain, realized that the flue gas that produces among the isolated conflagration spreads the function in the gap of door, improved the isolated function of preventing fire door to the flue gas.

Description

Fireproof door for electric comprehensive building of power plant

Technical Field

The utility model relates to a prevent fire door specifically is a prevent fire door for electric integrated construction in power plant belongs to and prevents fire door technical field.

Background

The fireproof door is a door which can meet the requirements of fire resistance stability, integrity and heat insulation within a certain 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, also has the functions of preventing the spread of fire and the diffusion of smoke, can prevent the spread of fire within a certain time, and ensures the evacuation of people; fire doors are generally installed in the following places: 1, closing evacuation stairs to lead to a walkway; doors closing the elevator car, leading to the front room and the front room leading to the walkway; 2, inspection doors of vertical pipeline wells such as a cable well, a pipeline well, a discharge flue, a garbage flue and the like; 3, dividing fire partitions, and controlling fire walls arranged in the building areas of the partitions and doors on the fire partitions; when a building is difficult to arrange a firewall or a fireproof door, the fireproof door needs to be replaced by a fireproof rolling door, and meanwhile, the fireproof rolling door needs to be protected by a water curtain.

However, the existing fireproof doors are kept in a normally closed state under the action of a door closer, and people can push the door closer to be kept in a normally open state through the fireproof doors in a large amount when fire hazard occurs; in emergency, few people return to close the door to prevent the fire from spreading, so that the damage of the fire can expand the range and spread the speed, and great trouble is brought to fire rescue; meanwhile, because the corners of some corridors are right angles, the door closer cannot be in a normally open state, people need to push away the fireproof door once and again when passing by so as to keep the open state and enable people to pass through, although people can automatically close the door under the action of the door closer after walking to prevent the spread of fire, the passing speed is reduced because one more door pushing action is added when people pass through the fireproof door, the escaping time is prolonged, and the danger is increased. Therefore, the fire door for the electric comprehensive building of the power plant is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is just to provide a prevent fire door for power plant's electrical integrated building in order to solve above-mentioned problem.

The utility model realizes the purpose through the following technical proposal, a fireproof door for the electrical comprehensive building of a power plant, which comprises a door frame, a right door, a left door, a door handle, a baffle, a door closer, a hinge, a door locking column and a time delay device; the door frame is fixed on the wall body; the left frame and the right frame of the door frame are movably connected with a left door and a right door through hinges; the left door and the right door are fixedly connected with door handles; the upper frame and the lower frame of the door frame are provided with baffles; the left door and the right door are fixedly connected with the upper frame of the doorframe by door closers; the left door and the right door are fixedly connected with door locking columns; the time delay device comprises a box body, a transmission shaft, a limiting plate, a large friction gear, a small friction gear, a rotating gear and a flywheel mechanism; the front plate is fixedly connected at the opening of the box body; the left half of the transmission shaft is a round shaft and the right half of the transmission shaft is a rack; the transmission gear is fixedly connected to the rotating shaft; the ratchet gear and the transmission gear are fixedly connected at different positions of the same rotating shaft; the traction rope is made of common plastic materials; the roller shutter is made of refractory material; the support rod and the scroll are made of steel.

Preferably, the box body is fixedly connected in the wall body; a limiting plate is fixedly connected to the parallel bottom plate in the box body near the bottom plate; the limiting plate is provided with a circular shaft hole; a slideway ring is vertically and fixedly connected to the box body; the round shaft is vertically connected with the limiting plate in a sliding manner through the round shaft hole; the rack is connected in the slideway ring in a sliding way; the round shaft is sleeved with a spring; the tail end of the rack is hinged with a claw; a return spring is fixedly connected between the claw and the upper surface of the rack; and a flywheel mechanism is meshed on the rack.

Preferably, the flywheel mechanism comprises a rotating gear, a ratchet gear, a pawl and a rotating shaft; the ratchet gear is fixedly connected to the rotating shaft; a pawl is hinged on the ratchet gear; the rotating gear is rotationally connected to the ratchet gear.

Preferably, the transmission gear is meshed with a small friction gear; the small friction gear is meshed with the large friction gear; the small friction gear is fixedly connected to the small shaft; the large friction gear is fixedly connected to the large shaft; the small shaft and the large shaft are vertically and rotatably connected to the box body.

Preferably, the teeth of the ratchet gear above the rack are inclined in the clockwise direction; the teeth of the ratchet gear below the rack are inclined in the anticlockwise direction.

The utility model has the advantages that:

1. the utility model realizes the delay function of the automatic door closing time of the fireproof door through the structural design of the transmission shaft, the spring, the claw, the reset spring, the small friction gear, the large friction gear, the small transmission shaft, the large transmission shaft and the ratchet mechanism, solves the problem that the door closing speed of the traditional door closer of a right-angle channel is too high, so that a plurality of people can push the door for a plurality of times, and improves the passing efficiency of the plurality of people under the dangerous condition;

2. the utility model discloses a baffle, bracing piece, haulage rope, spool and the structural design of rolling up the curtain, realized the function that the flue gas that produces among the isolated conflagration stretchs from the gap of door, solved the tradition and prevented fire door and made fire prevention adhesive tape melt the problem that produces the clearance in the flame firing, improved the isolated function of preventing fire door to the flue gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional view of the delay device of the present invention;

FIG. 4 is a schematic view of the flywheel mechanism of the present invention;

fig. 5 is a schematic view of the fire-proof rolling shutter of the present invention.

In the figure: 1. door frame, 2, right door, 3, left door, 4, door handle, 5, baffle, 6, door closer, 7, hinge, 8, lock door post, 9, box, 10, transmission shaft, 12, limiting plate, 13, big friction gear, 14, big shaft, 15, little friction gear, 16, little shaft, 17, front plate, 18, rotation gear, 19, ratchet gear, 20, pawl, 21, axis of rotation, 22, rack, 23, spring, 24, round shaft, 25, round shaft hole, 26, slideway ring, 27, claw, 28, reset spring, 29, transmission gear, 30, bracing piece, 31, haulage rope, 32, reel, 33, roller blind.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-5, a fire door for an electrical building of a power plant includes a door frame 1, a right door 2, a left door 3, a door handle 4, a baffle 5, a door closer 6, a hinge 7, a door locking column 8 and a delay device; the door frame 1 is fixed on a wall body; the left frame and the right frame of the door frame 1 are both movably connected with a left door 3 and a right door 2 through hinges 7; the left door 3 and the right door 2 are fixedly connected with door handles 4; the upper frame and the lower frame of the door frame 1 are provided with baffle plates 5; the left door 3 and the right door 2 are fixedly connected with the upper frame of the doorframe 1 through door closers 6; the left door 3 and the right door 2 are fixedly connected with a door locking column 8; the time delay device comprises a box body 9, a transmission shaft 10, a limiting plate 12, a large friction gear 13, a small friction gear 15, a rotating gear 18 and a flywheel mechanism; the front plate 17 is fixedly connected at the opening of the box body 9; the left half of the transmission shaft 10 is a round shaft 24, and the right half is a rack 22; the transmission gear 29 is fixedly connected on the rotating shaft 21; the ratchet gear 19 and the transmission gear 29 are fixedly connected at different positions of the same rotating shaft 21; the hauling rope 31 is made of common plastic; the roller shutter 33 is made of refractory material; the support rod 30 and the reel 32 are made of steel.

The box body 9 is fixedly connected in the wall body; a limiting plate 12 is fixedly connected to the parallel bottom plate in the box body 9 near the bottom plate; the limiting plate 12 is provided with a circular shaft hole 25; a slideway ring 26 is vertically and fixedly connected on the box body 9; the circular shaft 24 is vertically connected with the limit plate 12 in a sliding manner through a circular shaft hole 25; the rack 22 is slidably connected within the chute ring 26; the round shaft 24 is sleeved with a spring 23; the tail end of the rack 22 is hinged with a claw 27; a return spring 28 is fixedly connected between the claw 27 and the upper surface of the rack 22; the rack 22 is engaged with a flywheel mechanism, and through the design, the transmission rod 10 can repeatedly move back and forth under the action of the spring 23, so that the practical requirement is met; the flywheel mechanism comprises a rotating gear 18, a ratchet gear 19, a pawl 20 and a rotating shaft 21; the ratchet gear 19 is fixedly connected to the rotating shaft 21; a pawl 20 is hinged on the ratchet gear 19; the rotating gear 18 is rotationally connected to the ratchet gear 19, and the transmission rod moves backwards by utilizing a flywheel mechanism in the prior art without driving the rotating shaft 21 to rotate and moves forwards to drive the transmission rod 21 to rotate; the transmission gear 29 is meshed with the small friction gear 15; the small friction gear 15 is meshed with the large friction gear 13; the small friction gear 15 is fixedly connected to the small shaft 16; the large friction gear 13 is fixedly connected to a large shaft 14; the small shaft 16 and the large shaft 14 are vertically and rotatably connected to the box body 9, the transmission rod 21 is slowed down to return to an initial state under the action of a spring 23 through the meshing transmission of the large friction gear 13 and the small friction gear 15, and meanwhile, the time for returning the transmission rod 10 to the initial position is adjusted through adjusting the friction force between the small shaft 16 and the large shaft 14 and the box body 9; the teeth of the ratchet gear 19 above the rack 22 are inclined in the clockwise direction; the teeth of the ratchet gear 19 below the rack 22 are inclined in the counterclockwise direction, so that the upper and lower rotating gears 18 rotate and the ratchet gear 19 does not rotate when the transmission rod 10 moves backwards, the rotating shaft 21 does not rotate, the rotation is not transferred, the transmission rod 10 moves forwards to drive the rotating gear 18 to rotate, so that the ratchet gear 19 is driven to rotate, the rotating shaft 21 is driven to rotate, and the rotation is transferred downwards.

When the utility model is used, the door locking column 8 is pressed into the two slideway plates 22 to push the transmission rod 10 to move backwards, the door locking column 8 is tightly grabbed under the action of the claws 27 and the slideway rings 26, and the door locking column 8 is prevented from leaving the slideway rings 26 under the action of the door closer 6 after being pushed by no external force; the transmission rod 10 moves backwards to drive the rack 22 at the front end of the transmission rod 10 and the meshed rotating gear 18 to rotate clockwise, the transmission rod 21 is not driven to rotate under the action of the ratchet gear 19 and the pawl 20, when the transmission rod 10 moves to the innermost position, the transmission rod 21 moves backwards under the action of the spring 23, the rack 22 moving backwards drives the rotating gear 18 to rotate anticlockwise, the transmission rod 21 rotates anticlockwise under the action of the ratchet gear 19 and the pawl 20, so as to drive the transmission gear 29 fixed on the rotating shaft 21 to rotate anticlockwise, the small friction gear 15 is driven to rotate because the small friction gear 15 is meshed with the transmission gear 15, the large friction gear 13 is fixedly connected to the large shaft 14 and the small friction gear 15 is fixedly connected to the small shaft 16, and by adjusting the friction force between the large shaft 14 and the small shaft 16 and the box body 9, so as to change the time of the rotation of the small friction gear 15 and the large friction gear 13, and achieve the effect of changing the reset time of the spring 23, after the reset of the spring 23 is completed, the door locking column 8 leaves the slideway ring 26, the claw 27 releases the door locking column 8 under the effect of the reset spring 28, and the fireproof door becomes the closed state again under the effect of the door closer 6; in a fire, the hauling cable 31 is blown by fire spreading at the top, the roller shutter 33 is opened downwards under the action of the gravity of the winding shaft 32 and is tightly attached to the fireproof door, the gap of the fireproof door is completely covered, smoke is prevented from passing through the gap, and the baffle 5 is used for preventing wind from moving to pass through the fireproof door, so that the roller shutter 33 moves randomly to generate the gap.

The door closer 6 is of a born TS 1000C model; the rotating gear 18 of the freewheel mechanism drives the rotating gear 18 to rotate counterclockwise in the backward movement of the rack 22, and the pawl 20 slides on the surface of the ratchet gear 19, and drives the rotating gear 18 to rotate clockwise when the rack 22 moves forward, wherein the inner ratchet gear 19 catches the pawl 20, thereby driving the rotating shaft 21 to rotate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. A prevent fire door for power plant electrical complex which characterized in that: the door locking device comprises a door frame (1), a right door (2), a left door (3), a door handle (4), a baffle (5), a door closer (6), a hinge (7), a door locking column (8) and a time delay device; the door frame (1) is fixed on a wall body; the left frame and the right frame of the door frame (1) are movably connected with a left door (3) and a right door (2) through hinges (7); the left door (3) and the right door (2) are fixedly connected with door handles (4); the upper frame and the lower frame of the door frame (1) are provided with baffle plates (5); the left door (3) and the right door (2) are fixedly connected with the upper frame of the door frame (1) through door closers (6); the left door (3) and the right door (2) are fixedly connected with door locking columns (8); the time delay device comprises a box body (9), a transmission shaft (10), a limiting plate (12), a large friction gear (13), a small friction gear (15), a rotating gear (18) and a flywheel mechanism; the front plate (17) is fixedly connected at the opening of the box body (9); the left half side of the transmission shaft (10) is a round shaft (24) and the right half side is a rack (22); the transmission gear (29) is fixedly connected to the rotating shaft (21); the ratchet gear (19) and the transmission gear (29) are fixedly connected at different positions of the same rotating shaft (21); the traction rope (31) is made of common plastic materials; the roller shutter (33) is made of refractory material; the support rod (30) and the reel (32) are made of steel.

2. The fire door for a power plant electrical complex of claim 1, wherein: the box body (9) is fixedly connected in the wall body; a limiting plate (12) is fixedly connected to the parallel bottom plate in the box body (9) near the bottom plate; the limiting plate (12) is provided with a circular shaft hole (25); a slideway ring (26) is vertically and fixedly connected on the box body (9); the round shaft (24) is vertically connected with the limit plate (12) in a sliding manner through a round shaft hole (25); the rack (22) is connected in the slideway ring (26) in a sliding way; a spring (23) is sleeved on the round shaft (24); the tail end of the rack (22) is hinged with a claw (27); a return spring (28) is fixedly connected between the claw (27) and the upper surface of the rack (22); a flywheel mechanism is meshed on the rack (22).

3. The fire door for a power plant electrical complex of claim 1, wherein: the flywheel mechanism comprises a rotating gear (18), a ratchet gear (19), a pawl (20) and a rotating shaft (21); the ratchet gear (19) is fixedly connected to the rotating shaft (21); a pawl (20) is hinged on the ratchet gear (19); the rotating gear (18) is rotationally connected to the ratchet gear (19).

4. The fire door for a power plant electrical complex of claim 1, wherein: the transmission gear (29) is meshed with the small friction gear (15); the small friction gear (15) is meshed with the large friction gear (13); the small friction gear (15) is fixedly connected to the small shaft (16); the large friction gear (13) is fixedly connected to the large shaft (14); the small shaft (16) and the large shaft (14) are vertically and rotatably connected to the box body (9).

5. The fire door for a power plant electrical complex according to claim 3, wherein: the teeth of the ratchet gear (19) above the rack (22) are inclined in the clockwise direction; the teeth of the ratchet gear (19) below the rack (22) are inclined in the counterclockwise direction.

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