CN202118941U

CN202118941U - Quick open type furnace door sealed cover

Info

Publication number: CN202118941U
Application number: CN2011201774105U
Authority: CN
Inventors: 王兴军; 穆金明; 刘新红
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2012-01-18
Anticipated expiration: 2021-05-30

Abstract

The utility model discloses a quick open type furnace door sealed cover, comprising a baffle plate, a door cover, a pivot pin, a spring, a screw and a rotating handle. The baffle plate is a rectangular plate with the left side having a circular gap and the rear of the right side having a thickening step. A central through hole with female threads is disposed in the central position of the front of the plate. A pin hole vertical to the direction of the central hole is disposed in the upper end face of the thickening step at the back of the right side of the baffle plate. The door cover is a disc with the center having a blind hole. Two sides of the blind hole are respectively provided with screw holes having female threads at equal distances. The rotating handle is a cylinder with one end having male threads and the middle section having a bending of 120 DEG. The baffle plate compresses the spring through the screw, and is connected to the door cover by traversing the screw through hole. The baffle plate is connected to a furnace body through the pin. The threads of the rotating handle are screwed in the central through hole of the baffle plate. The door furnace is simple in structure and flexible in opening and closing, good in sealing during a positive pressure running or shutdown of the furnace, and is capable of reducing coal consumption and labor intensity.

Description

A kind of fast-open type oven door sealing lid

Technical field

The utility model relates to a kind of stove face plate, especially relates to a kind of fast-open type Sealing furnace door closure.

Background technology

Present various boiler door closure seal form is that the contact-making surface with fire door circle and door closure polishes mostly, relies on shift fork hinge tightening seal.Sealing form randomness is bigger, causes most of oven door sealing not tight, can be not influential during the boiler negative-pressure firing, but during blowing out or during pressure combustion, smoke spillage is serious, and not only contaminated environment but also influence workers ' health.

The utility model content

It is flexible that the utility model technical problem to be solved provides a kind of switch, the stove face plate of good seal.

For solving the problems of the technologies described above, the technical scheme that the utility model is taked is: a kind of fast-open type oven door sealing lid is characterized in that: comprise baffle plate, door closure, spring and rotating handles; Said baffle plate is that the left side has the rectangular slab that circular gap right side has journal stirrup behind; Be provided with the central through hole of internal thread in said its centre position; The trapezoidal hole of symmetry is set respectively in said central through hole both sides; On the journal stirrup behind of said baffle plate right side, pin shaft hole is set; Said door closure is the disk that the center has blind hole; The internal thread through hole of symmetry is set in the blind hole both sides of said disk; Between the edge of said internal thread through hole to disk, cannelure is set; Said rotating handles is that an end has externally threaded cylinder; Said baffle plate is connected with body of heater through the bearing pin of journal stirrup behind; In the trapezoidal hole of said baffle plate, place spring and pass through the screw in compression spring and be connected with the door closure internal thread through hole; The screw thread precession its centre through hole of said rotating handles.

The further improvement of the utility model is: in the cannelure of said door closure, sealed packing is set; The circular gap in said baffle plate left side is connected with the pin that is hinged on fire door circle one side; The stage casing of said rotating handles has the bending of 120 degree.

Adopt the beneficial effect that technique scheme produced to be: the switch simple in structure of this fire door is flexible, and especially good seal when operation under positive pressure or blowing out can reduce coal consumption and reduce labour intensity.

Description of drawings

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.

Fig. 1 is the front view of the utility model;

Fig. 2 is the front view of baffle plate among Fig. 1;

Fig. 3 is the cutaway view of Fig. 2;

Fig. 4 is the front view of door closure among Fig. 1;

Fig. 5 is the cutaway view of Fig. 4.

Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5: 1 pin, 2 fire door circles, 3 door closures, 4 bearing pins, 5 circular gap, 6 springs, 7 screws, 8 rotating handleses, 9 baffle plates, 10 packings.

The specific embodiment

This utility model comprises baffle plate 9, door closure 3, spring 6 and rotating handles 8; Circular gap 5 right sides have the rectangular slab of journal stirrup behind to said baffle plate 9 for the left side has; Be provided with the central through hole of internal thread in the center of said baffle plate 9; The trapezoidal hole of symmetry is set respectively in said central through hole both sides; On the journal stirrup behind of said baffle plate 9 right sides, bearing pin 4 holes are set; Said door closure 3 has the disk of blind hole for the center; The internal thread through hole of symmetry is set in the blind hole both sides of said disk; Between the edge of said internal thread through hole to disk, cannelure is set; Said rotating handles 8 is that an end has externally threaded cylinder; Said baffle plate 9 is connected with body of heater through the bearing pin of journal stirrup behind; In the trapezoidal hole of said baffle plate 9, place spring 6 and pass through screw in compression spring 6 and be connected with door closure 3 internal thread through hole; The central through hole of the screw thread precession baffle plate 9 of said rotating handles 8; Sealed packing 10 is set in the cannelure of said door closure 3; The circular gap 5 in said baffle plate 9 left sides is connected with the pin 1 that is hinged on fire door circle 2 one sides; The stage casing of said rotating handles 8 has the bending of 120 degree.

[0010]Map 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 further specify the operating procedure of the utility model: close upper furnace door during boiler operatiopn; Forward pin 1 in the round gap 5 of baffle plate 9; The bolt end precession of rotating handles 8 is also pushed door closure 3; Because baffle plate 9 two ends fix, door closure 3 is stressed to be compacted to packing 10 and sealing to fire door circle 2.Door closure 3 return-to-home positions when unclamping rotating handles 8, pin 1 lax back transfers to circular gap 5 to make oven door opening; Holddown spring 6 has guaranteed being tightly connected of 3 pairs of fire door circles 2 of door closure with attachment screw 7 under stress.

Claims

1. a fast-open type oven door sealing lid is characterized in that: comprise baffle plate (9), door closure (3), spring (6) and rotating handles (8); Circular gap (5) right side has the rectangular slab of journal stirrup behind to said baffle plate (9) for the left side has; Be provided with the central through hole of internal thread in the center of said baffle plate (9); The trapezoidal hole of symmetry is set respectively in said central through hole both sides; On the journal stirrup behind of said baffle plate (9) right side, bearing pin (4) hole is set; Said door closure (3) has the disk of blind hole for the center; The internal thread through hole of symmetry is set in the blind hole both sides of said disk; Between the edge of said internal thread through hole to disk, cannelure is set; Said rotating handles (8) is that an end has externally threaded cylinder; Said baffle plate (9) is connected with body of heater through the bearing pin (4) of journal stirrup behind; In the trapezoidal hole of said baffle plate (9), place spring (6) and pass through screw in compression spring (6) and be connected with door closure (3) internal thread through hole; The central through hole of the screw thread precession baffle plate (9) of said rotating handles (8).

2. a kind of fast-open type oven door sealing lid according to claim 1 is characterized in that: sealed packing (10) is set in the cannelure of said door closure (3).

3. a kind of fast-open type oven door sealing lid according to claim 2, it is characterized in that: the circular gap (5) in said baffle plate (9) left side is connected with the pin that is hinged on fire door circle (2) one sides (1).

4. a kind of fast-open type oven door sealing lid according to claim 1, it is characterized in that: the stage casing of said rotating handles (8) has the bending of 120 degree.