CN211599701U

CN211599701U - Fire-proof valve for exhaust duct

Info

Publication number: CN211599701U
Application number: CN202020125609.2U
Authority: CN
Inventors: 黄韬
Original assignee: Qingdao New Yongjia Ventilation Equipment Co ltd
Current assignee: Qingdao New Yongjia Ventilation Equipment Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-09-29
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses an exhaust duct fire prevention valve, concretely relates to exhaust duct fire prevention valve technical field, including the exhaust duct main part, exhaust duct main part inner chamber one side is provided with first spout, exhaust duct main part inner chamber opposite side is provided with the second spout, exhaust duct main part inner chamber is provided with the closing plate, closing plate one side bottom mounting is provided with first slider, the fixed second slider that is provided with in closing plate opposite side bottom, exhaust duct main part inner chamber one end inlays and is equipped with positive and negative motor, positive and negative motor output shaft end fixing is provided with the lead screw. The utility model discloses a be equipped with positive and negative motor, lead screw, first spout and first slider isotructure, when the fire prevention valve is closed to needs, make positive and negative motor pass through the lead screw and drive first slider along first spout inner chamber downstream, first slider drives the closing plate downstream to realize the purpose of closed valve, the closure is inseparable, avoids appearing the phenomenon of leaking, is favorable to increasing the device's result of use.

Description

Fire-proof valve for exhaust duct

Technical Field

The utility model relates to an exhaust duct fire prevention valve technical field, more specifically say, the utility model relates to an exhaust duct fire prevention valve.

Background

The fire damper is a valve type that is closed by the temperature control of the fusible alloy, using the action of gravity and the action of a spring mechanism. The novel product also has the advantages that the memory alloy is used for generating deformation to close the valve, and the novel product has the following functions: when the temperature of the flue gas reaches 280 ℃, people are basically evacuated, the actual meaning of the flue gas discharge is not realized, and the valve is automatically closed when the fire is brought in the flue gas, so that the fire is prevented from spreading.

However, in the use process of the existing fire-proof valve, the phenomenon of untight closing of the valve is easy to occur, so that the tightness of the valve is affected, and the use effect of the device is further reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides an exhaust duct fire prevention valve, through being equipped with positive and negative motor, the lead screw, first spout and first slider isotructure, when fire prevention valve is closed to needs, make positive and negative motor pass through the lead screw and drive first slider along first spout inner chamber downstream, first slider drives the closing plate downstream, thereby realize the purpose of closed valve, it is closed inseparable, avoid appearing the phenomenon of leaking, be favorable to increasing the device's result of use, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust duct fire prevention valve, includes the exhaust duct main part, exhaust duct main part inner chamber one side is provided with first spout, exhaust duct main part inner chamber opposite side is provided with the second spout, exhaust duct main part inner chamber is provided with the closing plate, closing plate one side bottom mounting is provided with first slider, the fixed second slider that is provided with in closing plate opposite side bottom, positive and negative motor has been inlayed to exhaust duct main part inner chamber one end, positive and negative motor output shaft end fixing is provided with the lead screw, lead screw one end runs through first slider bottom, the fixed guide bar that is provided with of second spout inner chamber, guide bar one end runs through second slider bottom, and is closed inseparable, avoids appearing the phenomenon of leaking, is favorable to increasing the device's result of use.

In a preferred embodiment, the lead screw is fixedly connected with the first sliding block through threads, and the guide rod is in sliding fit with the second sliding block, so that the connection is stable, and the sealing plate is prevented from deviating.

In a preferred embodiment, the bottom of the inner cavity of the exhaust duct main body is provided with a sealing groove, the bottom of the sealing plate is fixedly provided with a sealing block, and the sealing block is matched with the sealing groove, so that the sealing performance of the device can be improved, and the using effect of the device can be further improved.

In a preferred embodiment, the sealing plate, the lead screw and the guide rod are made of stainless steel materials, so that the service life of the device is prolonged.

In a preferred embodiment, the sealing block is made of a rubber material, so that the sealing performance between the sealing block and the sealing groove can be improved.

In a preferred embodiment, a first limiting plate is fixedly arranged at the top of the inner cavity of the first chute, the top end of the lead screw penetrates through the bottom of the first limiting plate, a second limiting plate is fixedly arranged at the top of the inner cavity of the second chute, and the top end of the guide rod penetrates through the bottom of the second limiting plate, so that the stability of the lead screw and the guide rod can be ensured.

The utility model discloses a technological effect and advantage:

1. compared with the prior art, by the aid of the structure provided with the positive and negative motors, the lead screw, the first sliding groove, the first sliding block and the like, when the fire damper needs to be closed, the positive and negative motors drive the first sliding block to move downwards along the inner cavity of the first sliding groove through the lead screw, and the first sliding block drives the sealing plate to move downwards, so that the purpose of closing the valve is achieved, the valve is closed tightly, leakage is avoided, and the use effect of the device is improved;

2. by arranging the second sliding groove, the guide rod and the second sliding block, when the sealing plate moves downwards, the sealing plate drives the second sliding block to move downwards along the inner cavity of the second sliding groove, so that the stability of the sealing plate during moving can be kept;

3. by arranging the sealing groove and the sealing block made of rubber materials, when the valve is closed, the sealing performance of the device can be improved, and the using effect of the device is further improved.

4. Through being equipped with first limiting plate and second limiting plate, can guarantee the stability of lead screw and guide bar.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a schematic view of the main structure of the exhaust duct of the present invention.

Fig. 4 is a schematic view of the sealing plate structure of the present invention.

The reference signs are: the air exhaust duct comprises an exhaust duct main body 1, a first sliding groove 2, a second sliding groove 3, a sealing plate 4, a first sliding block 5, a second sliding block 6, a positive and negative motor 7, a lead screw 8, a guide rod 9, a sealing groove 10, a sealing block 11, a first limiting plate 12 and a second limiting plate 13.

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 embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an exhaust duct fire prevention valve:

as shown in fig. 1-4: when the valve needs to be closed, the forward and reverse motor 7 is started, the forward and reverse motor 7 drives the lead screw 8 to rotate, the lead screw 8 drives the first sliding block 5 to downwards move along the inner cavity of the first sliding groove 2, the first sliding block 5 drives the sealing plate 4 to downwards move, the sealing plate 4 drives the sealing block 11 to downwards move, and the sealing block 11 is embedded into the inner cavity of the sealing groove 10, so that the purpose of closing the valve is achieved, the valve is tightly closed, the leakage phenomenon is avoided, in addition, the sealing block 11 is made of rubber materials, the sealing performance of the device can be improved, the using effect of the device is further improved, the using effect of the device is favorably improved, the sealing plate 4 drives the second sliding block 6 to downwards move along the inner cavity of the second sliding groove 3 while the sealing plate 4 downwards moves, and the stability of the sealing plate 4 during moving can be maintained by arranging the guide rod 9 when the sealing plate 4 downwards, meanwhile, the stability of the screw 8 and the guide rod 9 can be ensured by providing the first limiting plate 12 and the second limiting plate 13.

The specific implementation mode is as follows: when the valve needs to be closed, the forward and reverse motor 7 is started, the forward and reverse motor 7 drives the lead screw 8 to rotate, the lead screw 8 drives the first sliding block 5 to downwards move along the inner cavity of the first sliding groove 2, the first sliding block 5 drives the sealing plate 4 to downwards move, the sealing plate 4 drives the sealing block 11 to downwards move, and the sealing block 11 is embedded into the inner cavity of the sealing groove 10, so that the purpose of closing the valve is achieved, the valve is tightly closed, the leakage phenomenon is avoided, in addition, the sealing block 11 is made of rubber materials, the sealing performance of the device can be improved, the using effect of the device is further improved, the using effect of the device is favorably improved, the sealing plate 4 drives the second sliding block 6 to downwards move along the inner cavity of the second sliding groove 3 while the sealing plate 4 downwards moves, and the stability of the sealing plate 4 during moving can be maintained by arranging the guide rod 9 when the sealing plate 4 downwards, simultaneously, through being equipped with first limiting plate 12 and second limiting plate 13, can guarantee the stability of lead screw 8 and guide bar 9, this embodiment has specifically solved current fire prevention valve in the process of using, appears the untight phenomenon of valve closure easily to influence the seal of valve, and then reduce the device's result of use problem.

The utility model discloses the theory of operation:

referring to the attached drawings 1-4 of the specification, through being equipped with positive and negative motor 7, lead screw 8, first spout 2 and first slider 5 isotructure, when needing to close the fire damper, make positive and negative motor 7 pass through lead screw 8 and drive first slider 5 and move down along 2 inner chambers of first spout, first slider 5 drives closing plate 4 and moves down, thereby realize the purpose of valve closing, it is inseparable to close, avoid appearing the phenomenon of leaking, be favorable to increasing the result of use of the device, and, through being equipped with seal groove 10 and adopting the sealed piece 11 that rubber materials made, when the valve closing, can increase the leakproofness of the device, further increase the result of use of the device.

Moreover, through being equipped with second spout 3, guide bar 9 and second slider 6, when closing plate 4 downstream, closing plate 4 drives second slider 6 along 3 inner chambers downstream of second spout, can keep the stability when closing plate 4 removes, simultaneously, through being equipped with first limiting plate 12 and second limiting plate 13, can guarantee the stability of lead screw 8 and guide bar 9.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an exhaust duct fire prevention valve, includes exhaust duct main part (1), its characterized in that: exhaust airway main part (1) inner chamber one side is provided with first spout (2), exhaust airway main part (1) inner chamber opposite side is provided with second spout (3), exhaust airway main part (1) inner chamber is provided with closing plate (4), closing plate (4) one side bottom mounting is provided with first slider (5), closing plate (4) other side bottom mounting is provided with second slider (6), exhaust airway main part (1) inner chamber one end is inlayed and is equipped with positive and negative motor (7), positive and negative motor (7) output shaft end fixing is provided with lead screw (8), lead screw (8) one end runs through first slider (5) bottom, second spout (3) inner chamber fixing is provided with guide bar (9), second slider (6) bottom is run through to guide bar (9) one end.

2. An exhaust duct fire damper as claimed in claim 1, wherein: the lead screw (8) is fixedly connected with the first sliding block (5) through threads, and the guide rod (9) is in sliding fit with the second sliding block (6).

3. An exhaust duct fire damper as claimed in claim 1, wherein: exhaust airway main part (1) inner chamber bottom is provided with seal groove (10), sealing plate (4) bottom is fixed and is provided with sealed piece (11), sealed piece (11) and seal groove (10) phase-match.

4. An exhaust duct fire damper as claimed in claim 1, wherein: the sealing plate (4), the lead screw (8) and the guide rod (9) are all made of stainless steel materials.

5. An exhaust duct fire damper as claimed in claim 3, wherein: the sealing block (11) is made of rubber materials.

6. An exhaust duct fire damper as claimed in claim 1, wherein: first spout (2) inner chamber top is fixed and is provided with first limiting plate (12), first limiting plate (12) bottom is run through on lead screw (8) top, second spout (3) inner chamber top is fixed and is provided with second limiting plate (13), second limiting plate (13) bottom is run through on guide bar (9) top.