阅读说明：本技术 具有叶片联动的烟道防火阀 (Flue fire damper with blade linkage ) 是由 范小红 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种具有叶片联动的烟道防火阀,包括固定座,所述固定座的内壁固定安装有装置主体,所述装置主体的内壁左侧固定安装有支撑板,所述支撑板的上端固定安装有固定块,所述固定块与挡板之间通过铰接轴铰接,所述铰接轴的前后两侧的外壁套接有第一弹簧,所述挡板的上端左侧开设有滑槽,所述滑槽的内壁镶嵌有固定杆,所述固定杆的中间位置焊接有易熔片,所述固定杆的左侧穿过圆形孔的内壁并延伸至装置主体的外壁。本发明通过设置有固定杆与滑槽相互配合,能够避免了易熔片熔断后,需要更换全新的防火阀,大大的增加了维修成本的问题,方便了对易熔片和固定杆的更换,同时降低了维修的成本。(The invention discloses a flue fire damper with blade linkage, which comprises a fixed seat, wherein a device main body is fixedly arranged on the inner wall of the fixed seat, a supporting plate is fixedly arranged on the left side of the inner wall of the device main body, a fixed block is fixedly arranged at the upper end of the supporting plate, the fixed block is hinged with a baffle plate through a hinged shaft, first springs are sleeved on the outer walls of the front side and the rear side of the hinged shaft, a sliding groove is formed in the left side of the upper end of the baffle plate, a fixed rod is embedded in the inner wall of the sliding groove, an fusible piece is welded in the middle of the fixed rod, and the left side of the fixed rod penetrates through. According to the invention, the fixed rod is matched with the sliding groove, so that the problem that a brand new fire damper needs to be replaced after the fusible piece is fused can be avoided, the maintenance cost is greatly increased, the fusible piece and the fixed rod can be conveniently replaced, and meanwhile, the maintenance cost is reduced.)

1. Flue fire prevention valve with blade linkage, including fixing base (1), its characterized in that: the inner wall of the fixing seat (1) is fixedly provided with a device main body (2), the inner wall left side of the device main body (2) is fixedly provided with a supporting plate (3), the upper end of the supporting plate (3) is fixedly provided with a fixed block (4), the fixed block (4) is hinged with a baffle (6) through a hinged shaft (5), the outer walls of the front side and the rear side of the hinged shaft (5) are sleeved with first springs (7), the upper end left side of the baffle (6) is provided with a sliding groove (8), the inner wall of the sliding groove (8) is inlaid with a fixed rod (10), the middle position of the fixed rod (10) is welded with an fusible piece (9), the left side of the fixed rod (10) penetrates through the inner wall of a circular hole (11) and extends to the outer wall of the device main body (2), the circular hole (11) is arranged on the left side wall of the device main body (2), and the fixed rod (10) extends out, first draw-in groove (13) have been seted up to the right-hand member of baffle (6), the inner wall of first draw-in groove (13) is inlayed and is had movable block (14), through second spring (15) fixed connection between first draw-in groove (13) and movable block (14), the inner wall of second draw-in groove (16) is embedded into to the right-hand member of movable block (14), the right side wall at device main part (2) is seted up in second draw-in groove (16), button (17) are installed to the inner wall of second draw-in groove (16), the left end of button (17) is tightly laminated with the right-hand member of movable block (14), the right-hand member of button (17) stretches out the inner wall of device main part (2) and extends to the outside of device main part (2).

2. The flue damper with vane linkage as recited in claim 1, wherein: the supporting plate (3) is fan-shaped, and the distance from the fan-shaped right end to the inner wall of the right side of the device main body (2) is longer than the distance from the left side of the baffle (6) to the right side of the device main body (2).

3. The flue damper with vane linkage as recited in claim 1, wherein: the lower extreme week side fixed mounting of baffle (6) has fixture block (20), the lower extreme embedding of fixture block (20) is at the inner wall of third draw-in groove (21), the inner wall at device main part (2) is seted up in third draw-in groove (21).

4. The flue damper with vane linkage as recited in claim 1, wherein: spout (8) set up to the shape that the right side notch is big, the left side notch is little, the inner wall size of spout (8) upper end notch equals the outer wall size of dead lever (10) tip, the size of the notch of spout (8) lower extreme is less than the outer wall size of dead lever (10) tip.

5. The flue damper with vane linkage as recited in claim 1, wherein: the right end of the movable block (14) is arranged to be a slope inclined towards the middle, and the length of the movable block (14) is equal to the length from the notch of the first clamping groove (13) to the bottom of the groove.

6. The flue damper with vane linkage as recited in claim 1, wherein: the upper end and the lower end of the button (17) are fixedly provided with limit blocks (18), and the limit blocks (18) are fixedly connected with the inner wall of the second clamping groove (16) through third springs (19).

Technical Field

The invention relates to the technical field of fire valves, in particular to a flue fire valve with blade linkage.

Background

The fire prevention valve is installed at the ventilation, air conditioning system's the confession, the return air pipeline is on, be the open mode at ordinary times, when gaseous temperature reaches 70 ℃ in the pipeline during the conflagration, fusible piece fusing, the valve is self-closing under the torsional spring force effect, can satisfy fire-resistant stability and fire-resistant integrality requirement in a certain time, play the valve that separates cigarette back-fire relief effect, the flue fire prevention valve of traditional blade linkage is at the in-process that uses, once after fusible piece fusing, the flue fire prevention valve of blade linkage is under torsion spring's effect, can not open automatically, thereby the flue fire prevention valve that leads to whole blade linkage just can not be used, need to change the flue fire prevention valve of whole blade linkage, great increase the cost of maintenance, consequently, need for a flue fire prevention valve with blade linkage urgently.

Disclosure of Invention

The invention aims to provide a flue fire damper with blade linkage, which aims to solve the problems that after a fusible piece provided in the background art is fused, the flue fire damper with blade linkage cannot be automatically opened, so that the whole flue fire damper with blade linkage cannot be used, the whole flue fire damper needs to be replaced, and the maintenance cost is greatly increased.

In order to achieve the purpose, the invention provides the following technical scheme: a flue fire damper with blade linkage comprises a fixed seat, wherein a device main body is fixedly arranged on the inner wall of the fixed seat, a supporting plate is fixedly arranged on the left side of the inner wall of the device main body, a fixed block is fixedly arranged on the upper end of the supporting plate, the fixed block is hinged with a baffle through a hinged shaft, first springs are sleeved on the outer walls of the front side and the rear side of the hinged shaft, a sliding groove is formed in the left side of the upper end of the baffle, a fixed rod is inlaid in the inner wall of the sliding groove, an fusible piece is welded in the middle of the fixed rod, the left side of the fixed rod penetrates through the inner wall of a circular hole and extends to the outer wall of the device main body, the circular hole is formed in the left side wall of the device main body, the fixed rod extends out of the outer wall of the device main body and, through second spring fixed connection between first draw-in groove and the movable block, the inner wall of second draw-in groove is embedded into to the right-hand member of movable block, the right side wall at the device main part is seted up to the second draw-in groove, the button is installed to the inner wall of second draw-in groove, the left end of button tightly laminates with the right-hand member of movable block, the right-hand member of button stretches out the inner wall of device main part and extends to the outside of device main part.

Preferably, the supporting plate is fan-shaped, and the length of the fan-shaped right end from the inner wall of the right side of the device body is greater than the length from the left side of the baffle plate to the right side of the device body.

Preferably, a clamping block is fixedly mounted on the periphery of the lower end of the baffle, the lower end of the clamping block is embedded into the inner wall of the third clamping groove, and the third clamping groove is formed in the inner wall of the device main body.

Preferably, the chute is set into a shape with a large right-side notch and a small left-side notch, the size of the inner wall of the upper-end notch of the chute is equal to the size of the outer wall of the end part of the fixed rod, and the size of the notch of the lower end of the chute is smaller than the size of the outer wall of the end part of the fixed rod.

Preferably, the right end of the movable block is arranged to be a slope inclined towards the middle, and the length of the movable block is equal to the length from the notch of the first clamping groove to the bottom of the groove.

Preferably, the limiting block is fixedly connected with the inner wall of the second clamping groove through a third spring.

Compared with the prior art, the invention has the beneficial effects that:

1. this flue fire prevention valve with blade linkage, mutually support through being provided with dead lever and spout, can early fusible piece fuse the back, with the dead lever at fusible piece both ends from the inner wall roll-off of spout, thereby fuse piece and the dead lever of renewal, thereby avoided fusible piece fuse the back, the baffle just can not be opened, thereby need to change brand-new fire prevention valve, great increase cost of maintenance's problem, made things convenient for the change to fusible piece and dead lever, the cost of maintenance has been reduced simultaneously.

2. This kind of flue fire prevention valve with blade linkage, through being provided with movable block and third draw-in groove and mutually supporting, can be when fusible piece is fused, first spring can drive the baffle and rotate, make the baffle plug up the inner wall of device main part, the inside of third draw-in groove still can be embedded into to the fixture block simultaneously, thereby can make the leakproofness between baffle and the device main part better, thereby the effectual inside that prevents that the smoke and dust from entering into the pipeline, make the smoke and dust prevention effect of device better, the leakproofness of device has been improved simultaneously.

Drawings

FIG. 1 is a schematic front sectional view of the present invention in an expanded configuration;

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

FIG. 3 is a schematic top sectional view of the present invention in a closed configuration;

FIG. 4 is a schematic top sectional view of the present invention in an expanded configuration;

fig. 5 is an enlarged view of the structure at a in fig. 2 according to the present invention.

In the figure: 1. a fixed seat; 2. a device main body; 3. a support plate; 4. a fixed block; 5. hinging a shaft; 6. a baffle plate; 7. a first spring; 8. a chute; 9. a fusible sheet; 10. fixing the rod; 11. a circular hole; 12. a nut; 13. a first card slot; 14. a movable block; 15. a second spring; 16. a second card slot; 17. a button; 18. a limiting block; 19. a third spring; 20. a clamping block; 21. and a third card slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown:

the utility model provides a flue fire prevention valve with blade linkage, including fixing base 1, the inner wall fixed mounting of fixing base 1 has device main part 2, the inner wall left side fixed mounting of device main part 2 has backup pad 3, backup pad 3 sets up to fan-shaped, and the length of fan-shaped right-hand member apart from 2 right side inner walls of device main part is greater than the length on baffle 6 left sides to 2 right sides of device main part, can play the effect of support, simultaneously can also cooperate with baffle 6, avoid the smoke and dust to enter into the problem of the inside of pipeline, the leakproofness of device has been improved.

Fixed block 4 is installed to the upper end fixed mounting of backup pad 3, it is articulated through articulated shaft 5 between fixed block 4 and the baffle 6, lower extreme week side fixed mounting of baffle 6 has fixture block 20, the lower extreme embedding of fixture block 20 is at the inner wall of third draw-in groove 21, the inner wall at device main part 2 is seted up to third draw-in groove 21, can be when fusible piece 9 is fused, first spring 7 can drive baffle 6 and rotate, make baffle 6 plug up the inner wall of device main part 2, fixture block 20 still can imbed the inside of third draw-in groove 21 simultaneously, thereby can make the leakproofness between baffle 6 and the device main part 2 better, thereby effectually prevent that the smoke and dust from entering into the inside of pipeline, make the smoke and dust effect of device better, the leakproofness of device has been improved simultaneously.

First spring 7 has been cup jointed to the outer wall of both sides around the articulated shaft 5, spout 8 has been seted up on the upper end left side of baffle 6, spout 8 sets up to the right side notch big, the little shape of left side notch, the inner wall size of spout 8 upper end notch equals the outer wall size of dead lever 10 tip, the size of the notch of spout 8 lower extreme is less than the outer wall size of dead lever 10 tip, can fix dead lever 10, thereby avoided behind fusible piece 9 fusing, baffle 6 just can not be opened, thereby need to change brand-new fire prevention valve, great increase cost of maintenance's problem, the change to fusible piece 9 and dead lever 10 has been made things convenient for, the cost of maintenance has been reduced simultaneously.

The inner wall of the chute 8 is inlaid with a fixed rod 10, the middle position of the fixed rod 10 is welded with an fusible piece 9, the fusible piece 9 is a safety pressure protection device, in order to prevent the safety valve from breaking down and playing a role of standby safety, the fusible piece is made of aluminum alloy material with lower melting point, the left side of the fixed rod 10 penetrates through the inner wall of a circular hole 11 and extends to the outer wall of the device main body 2, the circular hole 11 is arranged on the left side wall of the device main body 2, the part of the outer wall, extending out of the outer wall of the device main body 2, of the fixed rod 10 is in threaded connection with a nut 12, the right end of the baffle 6 is provided with a first clamping groove 13, the inner wall of the first clamping groove 13 is inlaid with a movable block 14, the right end of the movable block 14 is arranged to be a slope inclining towards the middle, the length of the movable block 14 is equal to the length, thereby causing a problem that the movable block 14 and the apparatus main body 2 are damaged, improving the stability of the apparatus and also improving the service life of the apparatus.

The first clamping groove 13 is fixedly connected with the movable block 14 through the second spring 15, the right end of the movable block 14 is embedded into the inner wall of the second clamping groove 16, the second clamping groove 16 is arranged on the right side wall of the device main body 2, the button 17 is arranged on the inner wall of the second clamping groove 16, the upper end and the lower end of the button 17 are fixedly provided with the limiting blocks 18, the limiting blocks 18 are fixedly connected with the inner wall of the second clamping groove 16 through the third spring 19, the button 17 can be limited, the button 17 is prevented from being lost, meanwhile, the button 17 can automatically recover after being extruded, the problem that smoke dust enters the inner wall of the second clamping groove 16 when the baffle 6 is opened, the second clamping groove 16 is blocked, the baffle 6 cannot be well fixed, dust enters the pipeline is solved, the sealing performance of the device is improved, the left end of the button 17 is tightly attached to the right end of the movable block 14, the right end of the push button 17 protrudes from the inner wall of the apparatus body 2 and extends to the outside of the apparatus body 2.

The working principle is as follows: when the fusible link 9 is fused, the first spring 7 is restored to be elastically deformed due to the absence of the tensile force of the fusible link 9, so that the flapper 6 is rotated around the hinge shaft 5, during the rotation, the right end of the movable block 14 is pressed against the inner wall of the apparatus body 2, so that the movable block 14 presses the second spring 15, so that the second spring 15 is elastically deformed, the movable block 14 is contracted towards the inner wall of the first clamping groove 13 until the baffle 6 is parallel to the supporting plate 3, the right end of the movable block 14 rotates to the position of the notch of the second clamping groove 16, because the second spring 15 has no extrusion force, the second spring 15 recovers elastic deformation, so that the movable block 14 is embedded into the second clamping groove 16, the baffle 6 is fixed, and meanwhile, the latch 20 at the lower end of the baffle 6 is embedded into the inner wall of the third slot 21, so that the baffle 6 and the device body 2 are completely closed.

Then slide spout 8 to the right, the right-hand member up to dead lever 10 aligns with 8 great notch departments of spout, then take dead lever 10 out, also take out dead lever 10 on the 2 inner walls of device main part simultaneously, with the inner wall of new dead lever 10 right-hand member embedding spout 8, then want left slip, fix dead lever 10 at the inner wall of spout 8, then press button 17, make button 17 extrusion movable block 14, make movable block 14 break away from the inner wall of second draw-in groove 16, stimulate dead lever 10 simultaneously, make dead lever 10 drive baffle 6 rotate, the inner wall of circular port 11 is embedded into to the left side of dead lever 10, at last pass through the outer wall of threaded fixation at dead lever 10 with nut 12, it is better to change whole fusible piece 9.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.