CN213747802U - Sealing device for pit furnace mouth - Google Patents
Sealing device for pit furnace mouth Download PDFInfo
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- CN213747802U CN213747802U CN202021763257.XU CN202021763257U CN213747802U CN 213747802 U CN213747802 U CN 213747802U CN 202021763257 U CN202021763257 U CN 202021763257U CN 213747802 U CN213747802 U CN 213747802U
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- muffle
- connecting piece
- locking
- sealing lip
- sealing
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a well formula sealing device for fire door, including bell, muffle bell and muffle main part, be equipped with the locking crown plate on the muffle bell, locking crown plate border is equipped with the locking draw-in groove, muffle bell border is equipped with the upper seal lip, the upper seal lip side is equipped with carves the shape sealing washer, carve the shape sealing washer and be equipped with the latch segment, constant head tank and the slider that correspond with the locking draw-in groove is crisscross, be equipped with the roll round pin on the slider, muffle main part top is equipped with the lower seal lip, the lower seal lip side is equipped with the setting element, be equipped with the sealing member between upper seal lip and the lower seal lip; the periphery of the first connecting piece is provided with a fixed ring plate, the fixed ring plate is provided with a second connecting piece, the second connecting piece is connected with the cylinder body of the cylinder, and an extension rod of the cylinder is connected to a third connecting piece on the periphery of the wedge-shaped locking ring through a fixing pin. The utility model discloses can protect device well when having good leakproofness.
Description
Technical Field
The utility model belongs to the high temperature seal field, concretely relates to well formula is sealing device for fire door.
Background
When the pit furnace is in operation, a furnace cover needs to be opened frequently to hoist a workpiece, and a tight and accurate sealing device is needed between a muffle and the furnace cover. The traditional sealing device adopts a packing structure that round steel on a furnace cover surface is pressed into a muffle surface, and because the contact surface is small and the pressing depth is shallow, the furnace cover is often not sealed tightly, so that air can enter a muffle body; the gas in the furnace is harmful to operators and the environment, the furnace gas leaks out, and the production safety is seriously affected.
Publication No. CN103776259A discloses a sealing device for a shaft furnace mouth, comprising: the furnace cover cooling cavity is fixed on the top surface of the furnace cover; the furnace cover sealing ring is fixed on the edge of the bottom surface of the furnace cover; the muffle cooling cavity is fixed on the outer side of the top end of the muffle furnace body; the muffle guide groove is fixed on the top surface of the muffle cooling cavity; the sealing ring is fixed between the furnace cover sealing ring and the muffle sealing groove. The invention provides a sealing device for a pit-type furnace mouth, which utilizes the inclined surface pressure of a furnace cover sealing ring and the positioning action of a muffle guide groove to extrude and deform a sealing ring, enhances the sealing effect and fully seals a furnace body and a furnace cover through the deformed shape of the sealing ring. The problems of small contact surface, easy pollution of a sealing surface, inaccurate sealing and the like of the original plane sealing are solved, and the reliability and the safety of the sealing of the equipment are effectively improved.
The problems existing in the prior art are as follows: the sealing ring only depends on the pressure between the inclined plane of the sealing ring and the muffle guide groove for sealing, but can only depend on the pulling force to separate the sealing ring from the muffle when the furnace cover is opened, and the device is easily damaged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a well formula is sealing device for fire door to solve the problem that provides in the above-mentioned technical background.
In order to solve the above problem, the utility model provides a following technical scheme: a sealing device for a well-type furnace mouth comprises a furnace cover, a muffle cover and a muffle main body, wherein the furnace cover is fixedly connected with the muffle cover through a first connecting piece, a locking ring plate is arranged on the muffle cover, a locking clamping groove is formed in the edge of the locking ring plate, an upper sealing lip is arranged in the edge of the muffle cover, a wedge-shaped locking ring is arranged on the side surface of the upper sealing lip, locking blocks, positioning grooves and sliding pieces are arranged on the wedge-shaped locking ring, the locking blocks, the positioning grooves and the sliding pieces correspond to the locking clamping grooves in a staggered mode, rolling pins are arranged on the sliding pieces, a lower sealing lip corresponding to the upper sealing lip is arranged at the top of the muffle main body, a positioning piece is arranged on the side surface of the lower sealing lip, and a sealing piece is arranged between the upper sealing lip and the lower sealing lip;
the periphery of the first connecting piece is provided with a fixed ring plate, the fixed ring plate is provided with a second connecting piece, the second connecting piece is connected with the cylinder body of the cylinder, and an extension rod of the cylinder is connected to a third connecting piece on the periphery of the wedge-shaped locking ring through a fixing pin.
Preferably, the sealing element is a silicone rubber ring.
Preferably, a cooling cavity is arranged at the position corresponding to the upper sealing lip and the lower sealing lip of the sealing element.
Preferably, there are at least two of said cylinders.
Compared with the prior art, the beneficial effects of the utility model are that: can guarantee that the muffle furnace has good leakproofness at the during operation, simultaneously, when opening, can rely on the cylinder to drive the slider interactive for the silicon rubber sealing washer is not hard up, thereby is convenient for taking of bell, can not cause the damage of equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a cylinder connection structure;
fig. 3 is a schematic view of the locking block and the locking groove.
In the figure: the device comprises a muffle cover 1, an upper sealing lip 101, a first cooling cavity 102, a muffle body 2, a lower sealing lip 201, a second cooling cavity 202, a positioning piece 203, a 3-wedge-shaped locking ring, a 301 sliding piece, a 302 rolling pin, a 303 positioning groove, a 304 locking block, a 4 sealing piece, a 5 fixing ring plate, a 6 second connecting piece, a 7 air cylinder, an 8 extension rod, a 9 fixing pin, a 10 third connecting piece, an 11 furnace cover, a 12 first connecting piece, a 13 locking ring plate and a 14 locking clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without inventive achievements all belong to the protection scope of the present invention.
As shown in the figure, the utility model provides a technical scheme: a sealing device for a shaft-type furnace mouth comprises a furnace cover 11, a muffle cover 1 and a muffle main body 2, wherein the furnace cover 11 is fixedly connected with the muffle cover 1 through a first connecting piece 12, a locking ring plate 13 is arranged on the muffle cover, a locking clamping groove 14 is arranged at the edge of the locking ring plate 13, an upper sealing lip 101 is arranged at the edge of the muffle cover 1, a wedge-shaped locking ring 3 is arranged on the side surface of the upper sealing lip 101, the wedge-shaped locking ring 3 can rotate along the outer edge of the upper sealing lip 101, a locking block 304, a positioning groove 303 and a sliding piece 301 which correspond to the locking clamping groove 14 in a staggered mode are arranged on the wedge-shaped locking ring 3, a rolling pin 302 is arranged on the sliding piece 301, the wedge-shaped locking ring 3 can rotate, the locking block 304 can be clamped into the locking clamping groove 14 by rotating the wedge-shaped locking ring 3, the muffle cover 1 is locked, a lower sealing lip 201 corresponding to the upper sealing lip 101 is arranged at the top of the muffle main body 2, the side of lower seal lip 201 is equipped with setting element 203, and the sealing washer position accuracy is ensured with the next cooperation of constant head tank 303 to setting element 203, go up seal lip 101 and be equipped with sealing member 4 down between the seal lip 201, sealing member 4 is the silicon rubber circle, can guarantee the leakproofness better, and the corresponding position that seal lip 101 corresponds the position and seal lip 201 down on sealing member 4 is equipped with the cooling chamber, can prevent that silicon rubber sealing member 4 from ageing under high temperature, influencing sealed effect.
A fixed ring plate 5 is arranged on the periphery of the first connecting piece 12, a second connecting piece 6 is arranged on the fixed ring plate 5, the second connecting piece 6 is connected with the cylinder body of the cylinder 7, the extension bar 8 of the cylinder 7 is connected with the third connecting piece 10 at the periphery of the wedge-shaped locking ring 3 through the fixing pin 9, at least two cylinders are arranged, the wedge-shaped locking ring 3 is driven to rotate by controlling the contraction of the extension rod 8 of the cylinder 7, so that the locking block 304 can be clamped into the locking clamping groove 14, and the locking blocks 304 can be clamped into the corresponding locking clamping grooves 14 in a staggered manner and then continuously contract, so that the wedge-shaped locking ring 3 locks the upper sealing lip 101 and the lower sealing lip 201, the wedge-shaped locking ring 3 is loosened and rotated by controlling the extension rod 8 of the air cylinder 7 to extend, so that the locking blocks 304 are separated from the locking slots 14 corresponding to the staggered locking blocks, thereby facilitating the taking of the muffle cover.
The utility model discloses at the during operation, at this moment with bell 11 rise, and put into the work piece in the muffle main part 2 after, close bell 11, make setting element 203 correspond with constant head tank 303 after, the shrink of the extension bar 8 of cylinder 7, the roll pin 302 that drives wedge-shaped retainer 3 and rotates, make the latch segment 304 block into rather than crisscross locking draw-in groove 14 who corresponds, and continue to shrink after the latch segment 304 can block into locking draw-in groove 14, make wedge-shaped retainer 3 lock upper seal lip 101 and lower seal lip 201, and press down at the muffle 1 and produce decurrent pressure, make silicon rubber retaining member 4 compress tightly, thereby reach the mesh of locking the muffle; when the furnace cover needs to be opened, the furnace cover 11 is lifted upwards, meanwhile, the extension rod 8 of the air cylinder 7 extends out, the rolling pin 302 of the wedge-shaped locking ring 3 is driven to drive the wedge-shaped locking ring 3 to rotate, the locking block 304 can be separated from the locking clamping grooves 14 corresponding to the locking block in a staggered mode, the furnace cover 11 continues to be lifted upwards, and the muffle cover 1 is separated.
Although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts will be within the scope of the appended claims.
Claims (4)
1. The utility model provides a sealing device for pit-type furnace mouth, includes bell (11), muffle bell (1) and muffle main part (2), its characterized in that: the furnace cover (11) is fixedly connected with the muffle furnace cover (1) through a first connecting piece (12), a locking ring plate (13) is arranged on the muffle furnace cover, a locking clamping groove (14) is arranged at the edge of the locking ring plate (13), an upper sealing lip (101) is arranged at the edge of the muffle furnace cover (1), a wedge-shaped locking ring (3) is arranged on the side surface of the upper sealing lip (101), a locking block (304), a positioning groove (303) and a sliding piece (301) which correspond to the locking clamping groove (14) in a staggered mode are arranged on the wedge-shaped locking ring (3), a rolling pin (302) is arranged on the sliding piece (301), a lower sealing lip (201) corresponding to the upper sealing lip (101) is arranged at the top of the muffle furnace main body, a positioning piece (203) is arranged on the side surface of the lower sealing lip (201), and a sealing piece (4) is arranged between the upper sealing lip (101) and the lower sealing lip (201); the periphery of the first connecting piece (12) is provided with a fixed ring plate (5), the fixed ring plate (5) is provided with a second connecting piece (6), the second connecting piece (6) is connected with the cylinder body of the cylinder (7), and an extension rod (8) of the cylinder (7) is connected to a third connecting piece (10) on the periphery of the wedge-shaped locking ring (3) through a fixed pin (9).
2. The sealing device for the shaft-type furnace mouth according to claim 1, wherein: the sealing element (4) is a silicon rubber ring.
3. The sealing device for the shaft-type furnace mouth according to claim 1, wherein: and a cooling cavity is arranged at the corresponding position of the upper sealing lip (101) and the lower sealing lip (201) of the sealing element (4).
4. The sealing device for the shaft-type furnace mouth according to claim 1, wherein: the number of the cylinders (7) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021763257.XU CN213747802U (en) | 2020-08-21 | 2020-08-21 | Sealing device for pit furnace mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021763257.XU CN213747802U (en) | 2020-08-21 | 2020-08-21 | Sealing device for pit furnace mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213747802U true CN213747802U (en) | 2021-07-20 |
Family
ID=76840276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021763257.XU Active CN213747802U (en) | 2020-08-21 | 2020-08-21 | Sealing device for pit furnace mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213747802U (en) |
-
2020
- 2020-08-21 CN CN202021763257.XU patent/CN213747802U/en active Active
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