CN211952739U - Clamping groove type anti-turning cap - Google Patents
Clamping groove type anti-turning cap Download PDFInfo
- Publication number
- CN211952739U CN211952739U CN202020369882.XU CN202020369882U CN211952739U CN 211952739 U CN211952739 U CN 211952739U CN 202020369882 U CN202020369882 U CN 202020369882U CN 211952739 U CN211952739 U CN 211952739U
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- cap
- cap head
- groove
- endotheca
- boss
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- 230000000670 limiting effect Effects 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Helmets And Other Head Coverings (AREA)
Abstract
The utility model belongs to the technical field of fluidized bed boiler structure technique and specifically relates to a draw-in groove formula is prevented turning over hood. The spot welding structure through external draw-in groove between current hood and the endotheca is fixed in order to prevent that the cap head from droing, but the weldability because of the foundry goods is poor, produce the welding crack easily and cause the damage to drop, and it should not weld to execute the position low, cause the welding difficulty, this scheme includes cap head and endotheca, the cap head cover is established on the endotheca, a plurality of air exhaust holes along circumference evenly distributed have been seted up on the cap head, be equipped with the backup pad that is used for supporting the cap head on the perisporium of endotheca, be equipped with a plurality of lugs on the perisporium of endotheca, the bottom of cap head is equipped with annular boss, annular recess has been seted up on the inner wall of boss, set up a plurality ofly on the recess and. This scheme provides anti-drop and the hood of easy change through setting up the structure that draw-in groove and endotheca mutually supported, avoids influencing the normal operating of boiler.
Description
Technical Field
The utility model belongs to the technical field of fluidized bed boiler structure technique and specifically relates to a draw-in groove formula is prevented turning over hood.
Background
At present, the blast cap is an indispensable part of a circulating fluidized bed boiler, and the main function of the blast cap is to ensure that fluidized air is uniformly input into a hearth from a fluidized bed air chamber to realize fluidized combustion. Because the position of the blast cap is special, the medium in the working area is a high-temperature high-concentration material with strong abrasiveness.
The existing blast cap and the inner sleeve are fixed through a spot welding structure of an external clamping groove so as to prevent the cap head from falling off, but the welding performance of a casting is poor, welding cracks are easily generated to cause damage and falling off, the welding position is low, welding is not easy to realize, and welding difficulty is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a draw-in groove formula is prevented turning over hood through setting up the structure that draw-in groove and endotheca mutually supported, provides the hood that anti-drop and easily change, and the condition that reduces the hood and drop takes place, avoids influencing the normal operating of boiler.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a draw-in groove formula is prevented turning over blast cap, includes cap head and endotheca, cap head cover is established including the endotheca, a plurality of air exhaust holes along circumference evenly distributed are seted up to the cap overhead, be equipped with the backup pad that is used for supporting the cap head on the perisporium of endotheca, be equipped with a plurality of lugs on the perisporium of endotheca, the bottom of cap head is equipped with annular boss, annular recess has been seted up on the inner wall of boss, set up a plurality of and the position one-to-one of lug on the recess be used for the embedded groove of lug card income recess.
By adopting the technical scheme, the inner sleeve is fixedly connected with the connecting pipe of the fluidized bed air chamber, the cap head is moved to the upper part of the inner sleeve, the embedded groove on the cap head is aligned with the convex block on the inner sleeve correspondingly, the cap head is moved downwards, the convex block is clamped into the groove, the cap head is rotated along the central line of the cap head, the cap head and the inner sleeve rotate relatively, the convex block slides in the groove, and the cap head is clamped on the inner sleeve, so that the functions of easy replacement and falling prevention of the cap head are realized, the falling of the hood cap is reduced, and the normal operation of the boiler is prevented from being influenced.
The utility model discloses further set up to: the upper end wall of the boss is obliquely arranged, one end, close to the inner sleeve, of the upper end wall of the boss is a higher end, and one end, close to the air exhaust hole, of the upper end wall of the boss is a lower end.
Through adopting above-mentioned technical scheme, the boss upper end wall that the slope set up forms the guide effect to the wind that flows, makes the better entering hole of airing exhaust of wind that flows, makes impurity simultaneously can be under gravity and the wind-force effect, outside the better roll-off cap, reduces the residual volume of impurity on the boss upper end wall.
The utility model discloses further set up to: the peripheral wall of the cap head is fixedly connected with an annular reinforcing piece.
Through adopting above-mentioned technical scheme, the reinforcement sets up on the perisporium of cap head for increase the intensity on cap head surface, thereby prolong the life of cap head.
The utility model discloses further set up to: and a sealing element for plugging a gap between the inner sleeve and the boss is arranged on the inner wall of the boss.
By adopting the technical scheme, the sealing element plugs the gaps of the inner sleeve and the boss, so that air leakage from the gaps is reduced, the situation that impurities enter the gaps is also reduced, and the sealing property between the inner sleeve and the boss is improved.
The utility model discloses further set up to: and a locking mechanism for locking relative rotation between the cap head and the inner sleeve is arranged on the peripheral wall of the blast cap.
By adopting the technical scheme, the locking mechanism is used for locking the relative rotation between the cap head and the inner sleeve, so that the cap head is prevented from falling off from the inner sleeve, and the mounting stability is improved.
The utility model discloses further set up to: the locking mechanism comprises a fixed rod fixedly connected to the circumferential wall of the supporting plate, a locking rod is arranged on the circumferential wall of the cap head, a limiting groove for the fixed rod to penetrate through is formed in the locking rod, a limiting block is connected in the limiting groove in a sliding mode and is in clearance fit with the limiting groove, and a driving mechanism for driving the limiting block to move in the limiting groove to enable the limiting block to abut against the fixed rod is arranged on the locking rod.
Through adopting above-mentioned technical scheme, rotate the cap, make locking lever and dead lever align in vertical direction, rotate the locking lever, make the dead lever pass the spacing groove on the locking lever, at this moment, the dead lever passes through the spacing groove and forms limiting displacement to the locking lever, restricts promptly and takes place relative rotation between cap and the endotheca, and rethread actuating mechanism drives the stopper and slides in the spacing groove, makes the stopper support tightly in the dead lever, and the condition that the reduction locking lever deviates from the spacing groove takes place, improves locking mechanical system's stability.
The utility model discloses further set up to: actuating mechanism rotates the lead screw of connection on the stopper end wall including winding self axle, the lead screw sets up along spacing groove length direction, the tip of lead screw run through the inner wall of spacing groove and with spacing inslot wall between screw-thread fit, the one end fixedly connected with handle of stopper is kept away from to the lead screw.
Through adopting above-mentioned technical scheme, operating handle rotates, and the handle drives the lead screw and rotates, and because of the screw action, the lead screw drives the stopper and slides in the spacing groove, supports tightly until stopper and dead lever, and because of the reason of screw thread auto-lock, the position of stopper in the spacing groove is locked to make the dead lever support tightly all the time by the stopper, reduce the condition emergence that the dead lever deviates from the spacing groove, improve the stability of locking.
The utility model discloses further set up to: and a clamping groove used for being clamped with the limiting block is formed in the lower end wall of the fixing rod.
Through adopting above-mentioned technical scheme, the setting of draw-in groove makes stopper and dead lever block when supporting tightly in the draw-in groove, makes the locking of stopper to the dead lever more stable.
To sum up, the utility model discloses a beneficial technological effect does:
1. fixedly connecting the inner sleeve with a connecting pipe of the fluidized bed air chamber, moving the cap head to the upper part of the inner sleeve, enabling the embedded groove on the cap head and the convex block on the inner sleeve to be aligned correspondingly, moving the cap head downwards to enable the convex block to be clamped into the groove, rotating the cap head along the central line of the cap head to enable the cap head and the inner sleeve to rotate relatively, enabling the convex block to slide in the groove, and accordingly clamping the cap head on the inner sleeve, achieving the functions of easy replacement and anti-falling of the cap head, reducing the occurrence of falling of the hood, and avoiding influencing the normal operation of the boiler;
2. the upper end wall of the boss which is obliquely arranged forms a guiding effect on flowing wind, so that the flowing wind can better enter the air exhaust hole, and meanwhile, impurities can better slide out of the cap head under the action of gravity and wind force, so that the residual volume of the impurities on the upper end wall of the boss is reduced;
3. the reinforcement is provided on the peripheral wall of the cap head for increasing the strength of the surface of the cap head, thereby extending the life of the cap head.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic cross-sectional view of the present embodiment;
FIG. 3 is a partial schematic structural view of the present embodiment;
FIG. 4 is a schematic structural view of the inner sleeve;
fig. 5 is a schematic view of the structure of the cap head.
In the figure, 1, a cap head; 2. an inner sleeve; 3. an air exhaust hole; 4. a boss; 5. a groove; 6. a groove is embedded; 7. a support plate; 8. a bump; 9. a reinforcement; 10. a seal member; 11. a locking mechanism; 12. fixing the rod; 13. a locking lever; 14. a limiting groove; 15. a limiting block; 16. a drive mechanism; 17. a screw rod; 18. a handle; 19. a clamping groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the clamping groove type anti-overturn wind cap comprises a cap head 1 and an inner sleeve 2, wherein the cap head 1 is sleeved and clamped at the upper end of the inner sleeve 2.
As shown in fig. 2 and 5, a plurality of air exhaust holes 3 are formed in the circumferential wall of the lower end of the cap head 1, each air exhaust hole 3 penetrates through the inner end wall and the outer end wall of the cap head 1, the air exhaust holes 3 are obliquely arranged, one end close to the inner cavity of the cap head 1 is a higher end, and one end far away from the inner cavity of the cap head 1 is a lower end. The air exhaust holes 3 are uniformly distributed along the circumference of the peripheral wall of the cap head 1. The annular boss 4 of bottom fixedly connected with of cap head 1 has seted up annular recess 5 on the inner wall of boss 4, has seted up two embedded grooves 6 on the inner wall of recess 5, and two embedded grooves 6 are all set up in the below of recess 5 in the setting at the both ends of recess 5, two embedded grooves 6.
As shown in fig. 2 and 4, a ring-shaped support plate 7 is fixedly connected to the circumferential wall of the inner sleeve 2, and the support plate 7 is used for supporting the cap head 1 on the inner sleeve 2. Two bumps 8 are fixedly connected to the peripheral wall of the inner sleeve 2, and the two bumps 8 are arranged at two ends of the peripheral wall of the inner sleeve 2. The two projections 8 correspond one-to-one to the positions of the two fitting grooves 6 (shown in fig. 5).
The inner sleeve 2 is fixedly connected with a connecting pipe of the fluidized bed air chamber, so that the position of the inner sleeve 2 is locked. The cap head 1 is moved to the upper part of the inner sleeve 2, the embedded groove 6 on the cap head 1 and the convex block 8 on the inner sleeve 2 are aligned correspondingly, the cap head 1 is moved downwards, the convex block 8 is clamped into the groove 5 through the embedded groove 6, the cap head 1 is rotated along the central line of the cap head 1, the cap head 1 and the inner sleeve 2 are rotated relatively, the convex block 8 slides in the groove 5, and the cap head 1 is clamped on the inner sleeve 2.
The upper end wall of boss 4 sets up for the slope, and the one end that the boss 4 upper end wall is close to endotheca 2 is higher one end, and the one end that the boss 4 upper end wall is close to hole 3 of airing exhaust is lower one end to form the guide effect to the wind that flows, make the better entering hole 3 of airing exhaust of the wind that flows, make impurity simultaneously can be under gravity and the wind force effect, better roll-off cap 1 is outer.
An annular reinforcing member 9 is fixedly connected to the peripheral wall of the cap head 1, and the reinforcing member 9 is made of a material with high hardness, such as stainless steel, and is used for increasing the strength of the surface of the cap head 1. The reinforcement 9 is provided above the air discharge hole 3.
The inner wall of the boss 4 is fixedly connected with a sealing element 10, the sealing element 10 is made of heat-resistant materials, and the sealing element 10 seals the gaps between the inner sleeve 2 and the boss 4, so that air leakage from the gaps is reduced, and the situation that impurities enter the gaps is also reduced.
As shown in fig. 1 and 3, a locking mechanism 11 is provided on the outer peripheral wall of the hood, and the locking mechanism 11 is used for locking the relative rotation between the cap head 1 and the inner sleeve 2, so as to reduce the falling of the cap head 1 from the inner sleeve 2.
The locking mechanism 11 includes a fixing rod 12 fixedly connected to the peripheral wall of the support plate 7, and the fixing rod 12 is long. A locking lever 13 is rotatably connected to the peripheral wall of the cap head 1. The locking lever 13 is provided with a limiting groove 14, and the limiting groove 14 is arranged along the length direction of the locking lever 13. Limiting blocks 15 are connected in the limiting grooves 14 in a sliding mode, and the limiting blocks 15 are in clearance fit with the limiting grooves 14. The locking rod 13 is rotated downwards, so that the fixing rod 12 penetrates through the limiting groove 14, and at the moment, the fixing rod 12 forms a limiting effect on the locking rod 13 through the limiting groove 14, namely, the relative rotation between the cap head 1 and the inner sleeve 2 is limited.
The locking rod 13 is provided with a driving mechanism 16, the driving mechanism 16 drives the limiting block 15 to slide in the limiting groove 14, so that the limiting block 15 is abutted against the fixing rod 12, and the situation that the locking rod 13 is separated from the limiting groove 14 is reduced.
As shown in fig. 3 and 4, the driving mechanism 16 includes a screw rod 17 rotatably connected to an end wall of the stopper 15, and the screw rod 17 is disposed along a length direction of the stopper groove 14. The end of the screw rod 17 penetrates through the inner wall of the limit groove 14 and is in threaded fit with the inner wall of the limit groove 14. One end of the screw rod 17 far away from the limiting block 15 is fixedly connected with a handle 18. The operating handle 18 rotates, the handle 18 drives the screw rod 17 to rotate, the screw rod 17 drives the limiting block 15 to slide in the limiting groove 14 under the action of the threads until the limiting block 15 is tightly abutted to the fixed rod 12, and the position of the limiting block 15 in the limiting groove 14 is locked due to self-locking of the threads, so that the fixed rod 12 is always tightly abutted to the limiting block 15, and the situation that the fixed rod 12 is separated from the limiting groove 14 is reduced.
The lower end wall of the fixed rod 12 is provided with a clamping groove 19, so that the operation limiting block 15 is clamped into the clamping groove 19 when being tightly propped against the fixed rod 12, and the stability of the cap head 1 clamped on the inner sleeve 2 is improved to the maximum extent.
The working process is as follows:
the inner sleeve 2 is fixedly connected with a connecting pipe of a fluidized bed air chamber, the cap head 1 is moved to the upper part of the inner sleeve 2, the embedded groove 6 on the cap head 1 is aligned with the lug 8 on the inner sleeve 2 correspondingly, the cap head 1 is moved downwards, the lug 8 is clamped into the groove 5, the cap head 1 is rotated by 90 degrees along the central line of the cap head 1, the locking rod 13 is aligned with the fixing rod 12, the locking rod 13 is rotated, the fixing rod 12 penetrates through the limiting groove 14, the handle 18 is rotated, the limiting block 15 is abutted against the fixing rod 12, and the cap head 1 is stably clamped on the inner sleeve 2, so that the functions of easy replacement and falling prevention of the cap head 1 are realized, the condition that the air cap falls off is reduced, and the normal operation of a boiler is prevented from being influenced.
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 (8)
1. The utility model provides a wind cap is prevented turning over by draw-in groove formula which characterized in that: including cap (1) and endotheca (2), cap (1) cover is established on endotheca (2), a plurality of air exhaust hole (3) along circumference evenly distributed have been seted up on cap (1), be equipped with backup pad (7) that are used for supporting cap (1) on the perisporium of endotheca (2), be equipped with a plurality of lugs (8) on the perisporium of endotheca (2), the bottom of cap (1) is equipped with annular boss (4), annular recess (5) have been seted up on the inner wall of boss (4), set up on recess (5) a plurality of and lug (8) the position one-to-one be used for lug (8) card to go into embedded groove (6) of recess (5).
2. The chute type anti-wind-turning cap according to claim 1, wherein: the upper end wall of boss (4) sets up for the slope, the one end that boss (4) upper end wall is close to endotheca (2) is higher one end, the one end that boss (4) upper end wall is close to exhaust hole (3) is lower one end.
3. The chute type anti-wind-turning cap according to claim 1, wherein: the peripheral wall of the cap head (1) is fixedly connected with an annular reinforcing piece (9).
4. The chute type anti-wind-turning cap according to claim 1, wherein: and a sealing element (10) for plugging a gap between the inner sleeve (2) and the boss (4) is arranged on the inner wall of the boss (4).
5. The chute type anti-wind-turning cap according to claim 1, wherein: and a locking mechanism (11) for locking relative rotation between the cap head (1) and the inner sleeve (2) is arranged on the peripheral wall of the blast cap.
6. The chute type anti-wind-turning cap according to claim 5, wherein: the locking mechanism (11) comprises a fixing rod (12) fixedly connected to the peripheral wall of the supporting plate (7), a locking rod (13) is arranged on the peripheral wall of the cap head (1), a limiting groove (14) used for the fixing rod (12) to penetrate is formed in the locking rod (13), a limiting block (15) is connected to the limiting groove (14) in a sliding mode, the limiting block (15) is in clearance fit with the limiting groove (14), and a driving mechanism (16) used for driving the limiting block (15) to move in the limiting groove (14) to enable the limiting block (15) to abut against the fixing rod (12) is arranged on the locking rod (13).
7. The chute type anti-wind-turning cap according to claim 6, wherein: actuating mechanism (16) are including rotating lead screw (17) of connection on stopper (15) end wall around self axle, lead screw (17) set up along spacing groove (14) length direction, the tip of lead screw (17) run through the inner wall of spacing groove (14) and with spacing groove (14) between the inner wall screw-thread fit, the one end fixedly connected with handle (18) of stopper (15) are kept away from in lead screw (17).
8. The chute type anti-wind-turning cap according to claim 7, wherein: and a clamping groove (19) used for being clamped with the limiting block (15) is formed in the lower end wall of the fixing rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369882.XU CN211952739U (en) | 2020-03-21 | 2020-03-21 | Clamping groove type anti-turning cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369882.XU CN211952739U (en) | 2020-03-21 | 2020-03-21 | Clamping groove type anti-turning cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211952739U true CN211952739U (en) | 2020-11-17 |
Family
ID=73184821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020369882.XU Active CN211952739U (en) | 2020-03-21 | 2020-03-21 | Clamping groove type anti-turning cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211952739U (en) |
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2020
- 2020-03-21 CN CN202020369882.XU patent/CN211952739U/en active Active
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