Emergency sealing mechanism for air supply outlet and discharge outlet

Abstract

The utility model relates to the technical field of ventilation equipment, and discloses an emergency closing mechanism for an air supply outlet and a discharge outlet, which comprises a ventilation pipeline, a ventilation cavity is arranged in the ventilation pipeline, the inner wall of the ventilation cavity is fixedly connected with a closing mechanism, and a sealing mechanism is arranged in the closing mechanism; the closing mechanism comprises two fixing blocks, the top ends of the two fixing blocks are fixedly connected to the inner walls of the left side and the right side of the top of the ventilation cavity correspondingly, long-strip-shaped grooves are formed in the bottoms of the fixing blocks, fixing rods are fixedly connected to the inner walls of the long-strip-shaped grooves, and rotating bases are rotationally connected to the outer portions of the fixing rods. And the bottom end of the rotating seat is fixedly connected with an air cylinder. According to the emergency sealing device, the guide rod in the T-shaped sliding groove ensures linear sliding of the T-shaped sliding block, and the spring provides a buffering function when being extruded by the T-shaped sliding block, so that linkage of all parts is more stable, and emergency sealing is efficiently achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation equipment technical field especially, it relates to an emergency closing mechanism of air supply outlet and discharge port. BACKGROUND

[0002] Ventilation system is a kind of building environment control technology, for realizing the circulation and exchange of indoor and outdoor air, to improve indoor air quality, remove pollutants and odors, adjust indoor temperature and humidity, to provide comfortable and healthy indoor environment. It includes air inlet, air outlet, air supply duct, fan, cooling and heating, filter, control system and other auxiliary equipment in a complete set of device. Ventilation system can be divided into natural ventilation and mechanical ventilation, according to the ventilation range, mechanical ventilation can be divided into three kinds of overall ventilation, local ventilation and mixed ventilation.

[0003] In the ventilation system of various building facilities, industrial sites and the like, air supply outlet and air outlet are the key part of air circulation. However, in some special circumstances, such as fire, harmful gas leakage and other emergency events, it is necessary to close the air supply outlet and discharge port quickly to prevent the further deterioration of dangerous conditions such as harmful gas diffusion and fire spread.

[0004] However, in the prior art, part of the emergency closing device is not fast enough in the closing process, and due to the lack of effective transmission and linkage mechanism, the ventilation port cannot be completely sealed, so that the dangerous substance still has a leakage channel, and therefore an emergency closing mechanism of air supply outlet and discharge port is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides an emergency closing mechanism of air supply outlet and discharge port, which aims at improving the problem that part of the emergency closing device in the prior art is not fast enough in the closing process and cannot completely seal the ventilation port, resulting in a leakage channel for dangerous substances.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] An emergency closing mechanism of air supply outlet and discharge port, comprising a ventilation duct, a ventilation cavity is formed in the inside of the ventilation duct, a closing mechanism is fixedly connected to the inner wall of the ventilation cavity, a sealing mechanism is arranged in the inside of the closing mechanism.

[0008] The closing mechanism comprises two fixed blocks, the top ends of the two fixed blocks are fixedly connected to the left and right inner walls of the top of the ventilation cavity, a long slot is formed in the bottom of the fixed block, a fixed rod is fixedly connected to the inner wall of the long slot, a rotating seat is rotatably connected to the outer part of the fixed rod, a cylinder is fixedly connected to the bottom end of the rotating seat, a transmission block is fixedly connected to the driving end of the cylinder, rotating blocks are rotatably connected to the proximal sides of the two fixed blocks, closing plates are fixedly connected to the proximal sides of the two rotating blocks, T-shaped sliding grooves are formed in the distal sides of the two closing plates, T-shaped sliding blocks are slidably connected to the inner walls of the T-shaped sliding grooves, and ventilation openings are detachably connected to the left and right sides of the ventilation duct.

[0009] As a further description of the above technical solution:

[0010] The sealing mechanism comprises a plurality of L-shaped plates, the proximal sides of the two L-shaped plates are fixedly connected to the left and right sides of the T-shaped sliding block, a plurality of transmission plates are rotatably connected to the distal sides of the plurality of L-shaped plates, a plurality of rotating rings are fixedly connected to the distal sides of the plurality of transmission plates, sliding rods are rotatably connected to the inner walls of the rotating rings, and a plurality of sealing plates are fixedly connected to the proximal sides of the plurality of sliding rods.

[0011] As a further description of the above technical solution:

[0012] The outer part of the transmission block is rotatably connected to the inner part of the T-shaped sliding block, and the outer wall of the closing plate is in contact with the inner wall of the ventilation cavity.

[0013] As a further description of the above technical solution:

[0014] The upper and lower inner walls of the T-shaped sliding groove are fixedly connected with guide rods, and the inner wall of the T-shaped sliding block is slidably connected to the outer wall of the guide rod.

[0015] As a further description of the above technical solution:

[0016] The outer part of the guide rod is sleeved with a spring, the bottom end of the spring is fixedly connected to the bottom inner wall of the T-shaped sliding groove, and the top end of the spring is fixedly connected to the bottom end of the T-shaped sliding block.

[0017] As a further description of the above technical solution:

[0018] The proximal sides of the plurality of L-shaped plates are slidably connected to the distal sides of the two closing plates, and the proximal sides of the plurality of rotating rings are in contact with the distal sides of the two closing plates.

[0019] As a further description of the above technical solution:

[0020] The inner left and right sides of the closing plate are provided with sliding grooves, and the outer wall of the sliding rod is slidably connected to the inner wall of the sliding groove.

[0021] As a further description of the above technical solutions:

[0022] The inner left and right sides of the closing plate are provided with accommodating grooves, the outer wall of the sealing plate is slidably connected to the inner wall of the accommodating groove, and the far side of the plurality of sealing plates is in contact with the inner wall of the ventilation cavity.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、in the utility model, when the inside of the ventilation pipeline needs to be closed in emergency, the cylinder is used as a power source to drive the transmission block to move, the special rotary connection between the transmission block and the T-shaped sliding block and the rotary connection between the fixed rod and the rotary seat enable the transmission block to drive the T-shaped sliding block to slide in the T-shaped sliding groove. At the same time, the sliding of the T-shaped sliding block and the extension of the cylinder drive the closing plate to rotate around the fixed block, realizing the closure of the inside of the ventilation pipeline. In this process, the guide rod in the T-shaped sliding groove ensures the linear sliding of the T-shaped sliding block, and the spring provides a buffering effect when being pressed by the T-shaped sliding block, so that the linkage of the components is more stable, and the emergency closure is realized efficiently.

[0025] 2、in the utility model, when the closing mechanism moves, the downward movement of the T-shaped sliding block drives the downward movement of the L-shaped plate, the sliding groove in the closing plate provides sliding space for the sliding rod, and when the L-shaped plate moves downward, the sliding rod slides to the left and right sides along the sliding groove. The sliding rod drives the sealing plate to slide in the accommodating groove, and the outer wall of the sealing plate is in contact with and pressed by the inner wall of the ventilation cavity. This structure design further increases the sealing effect, ensuring good sealing performance in emergency closure. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A perspective view of an emergency closing mechanism of a supply air outlet and a discharge port is provided for the utility model;

[0027] Figure 2 A structural schematic view of a ventilation pipeline of an emergency closing mechanism of a supply air outlet and a discharge port is provided for the utility model;

[0028] Figure 3 For Figure 2 An enlarged view of position A in the middle;

[0029] Figure 4 A structural schematic view of a closing plate of an emergency closing mechanism of a supply air outlet and a discharge port is provided for the utility model.

[0030] LEGEND:

[0031] 1, ventilation duct; 2, ventilation cavity; 3, fixed block; 4, long slot; 5, fixed rod; 6, rotating seat; 7, air cylinder; 8, transmission block; 9, rotating block; 10, closing plate; 11, T-shaped sliding groove; 12, T-shaped sliding block; 13, guide rod; 14, spring; 15, L-shaped plate; 16, transmission plate; 17, sliding rod; 18, rotating ring; 19, sliding groove; 20, sealing plate; 21, containing groove; 22, ventilation port. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Referring to Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: a kind of emergency closing mechanism of air supply port and discharge port, including ventilation duct 1, it is characterized by: ventilation duct 1 is internally provided with ventilation cavity 2, the inner wall of ventilation cavity 2 is fixedly connected with closing mechanism, and sealing mechanism is arranged in the inside of closing mechanism;Ventilation duct 1 is the basic structure of entire emergency closing mechanism, and air supply port and exhaust port are provided in its left and right sides, and ventilation cavity 2 is used for the circulation of air.In normal circumstances, ventilation cavity 2 provides conveying channel for air.When emergency closing is needed, it also provides support frame for the action of other components, and it is the basic space structure of entire mechanism.

[0034] The closing mechanism comprises two fixed blocks 3, the top ends of the two fixed blocks 3 are fixedly connected to the left and right inner walls of the top of the ventilation cavity 2, the bottom of the fixed block 3 is provided with a long slot 4, the inner wall of the long slot 4 is fixedly connected with a fixed rod 5, and the fixed block 3 provides a support point for the whole closing mechanism. The long slot 4 at the bottom is used for installing the fixed rod 5 and the like, and the stable fixing effect ensures that the subsequent components can be accurately installed and normally operated, and plays a basic stabilizing and positioning role in emergency closing. The outer part of the fixed rod 5 is rotatably connected with a rotating seat 6, the bottom end of the rotating seat 6 is fixedly connected with a gas cylinder 7, and in the emergency closing process, the fixed rod 5 plays the role of a shaft, so that the gas cylinder 7 can rotate around it. This rotating connection mode provides the gas cylinder 7 with a degree of freedom, the driving end of the gas cylinder 7 is fixedly connected with a transmission block 8, the proximal side of each of the two fixed blocks 3 is rotatably connected with a rotating block 9, the proximal side of each of the two rotating blocks 9 is fixedly connected with a closing plate 10, and the outer wall of the closing plate 10 is in contact with the inner wall of the ventilation cavity 2. In the rotating process of the closing plate 10, the rotating block 9 plays a connecting and supporting role. The closing plate 10 is a component for directly closing the inside of the ventilation duct 1. Under the sliding of the T-shaped sliding block 12 and the elongation of the gas cylinder 7, it rotates around the fixed block 3 to realize the closing of the ventilation duct 1, and the contact with the inner wall of the ventilation cavity 2 ensures the effectiveness of the closing.

[0035] The distal side of each of the two closing plates 10 is provided with a T-shaped sliding groove 11, the inner wall of the T-shaped sliding groove 11 is slidably connected with a T-shaped sliding block 12, the outer part of the transmission block 8 is rotatably connected to the inner part of the T-shaped sliding block 12, and the transmission block 8 is connected to the driving end of the gas cylinder 7 and rotatably connected with the T-shaped sliding block 12. Under the power of the gas cylinder 7, the transmission block 8 moves downward along the axis of the gas cylinder 7, and due to the special rotating connection mode, it can drive the T-shaped sliding block 12 to slide in the T-shaped sliding groove 11 in the moving process, which is a key component for transmitting the power of the gas cylinder 7 to the T-shaped sliding block 12. The upper and lower inner walls of the T-shaped sliding groove 11 are fixedly connected with a guide rod 13, and the inner wall of the T-shaped sliding block 12 is slidably connected to the outer wall of the guide rod 13. The outer part of the guide rod 13 is sleeved with a spring 14, the bottom end of the spring 14 is fixedly connected to the bottom inner wall of the T-shaped sliding groove 11, and the top end of the spring 14 is fixedly connected to the bottom end of the T-shaped sliding block 12. The guide rod 13 provides guidance for the sliding of the T-shaped sliding block 12, ensures the straight-line sliding of the T-shaped sliding block 12 in the T-shaped sliding groove 11, prevents the spring 14 from deviating in the compression process, and ensures the accuracy of the movement of the whole closing mechanism. The left and right sides of the ventilation duct 1 are detachably connected with ventilation openings 22. The ventilation openings 22 are detachably connected to the left and right sides of the ventilation duct 1. Under normal circumstances, the ventilation openings 22 are used for air exchange between the ventilation duct 1 and the outside. The detachable connection mode facilitates the maintenance, replacement or adjustment of the ventilation layout of the ventilation duct 1 according to actual needs.

[0036] Referring to Figure 1 , Figure 2 andFigure 4 The sealing mechanism comprises a plurality of L-shaped plates 15, the proximal sides of two L-shaped plates 15 are fixedly connected to the left and right sides of the T-shaped sliding block 12, the proximal sides of the plurality of L-shaped plates 15 are slidingly connected to the distal sides of the two closing plates 10, and the distal sides of the plurality of L-shaped plates 15 are all rotatably connected with transmission plates 16. When the T-shaped sliding block 12 moves downward, the L-shaped plates 15 move downward, thereby playing a role in transmitting motion and transmitting the downward movement of the T-shaped sliding block 12 to the transmission plates 16, which are the starting transmission components of the movement of the sealing mechanism. The distal sides of the plurality of transmission plates 16 are all fixedly connected with rotating rings 18, and the proximal sides of the plurality of rotating rings 18 are in contact with the distal sides of the two closing plates 10. The inner wall of the rotating ring 18 is rotatably connected with a sliding rod 17, and the rotating ring 18 can rotate with the movement of the transmission plate 16, thereby transmitting the force from the transmission plate 16 to the sliding rod 17, and the rotating characteristic of the rotating ring 18 itself can adapt to different angle changes during the movement, thereby ensuring smooth operation of the sealing mechanism. The left and right sides of the inside of the closing plate 10 are both provided with sliding grooves 19, and the outer wall of the sliding rod 17 is slidingly connected with the inner wall of the sliding groove 19. The proximal sides of the plurality of sliding rods 17 are all fixedly connected with sealing plates 20. Under the driving of the rotating ring 18, the sliding rod 17 slides along the sliding groove 19 to the left and right sides, thereby driving the sealing plate 20 to move, which is the direct driving force source for the left and right sliding of the sealing plate 20. The left and right sides of the inside of the closing plate 10 are both provided with accommodating grooves 21, the outer wall of the sealing plate 20 is slidingly connected with the inner wall of the accommodating groove 21, and the distal sides of the plurality of sealing plates 20 are in contact with the inner wall of the ventilation cavity 2. The accommodating groove 21 provides space for the sliding of the sealing plate 20, thereby limiting the sliding range of the sealing plate 20, and ensuring that the sealing plate 20 can accurately contact the inner wall of the ventilation cavity 2 during the movement, thereby achieving good sealing effect.

[0037] Working principle: when the inside of the ventilation pipeline 1 needs to be closed in emergency, the power generated by opening the air cylinder 7 drives the transmission block 8 to move downward along the axis of the air cylinder 7, the rotating connection of the fixed rod 5 and the rotating seat 6 in the long slot 4 enables the top of the air cylinder 7 to rotate around the fixed rod 5, and the transmission block 8 can rotate in the T-shaped sliding block 12, thereby realizing the movement of the transmission block 8 to drive the T-shaped sliding block 12 to slide in the T-shaped sliding groove 11, and the connection of the rotating block 9 enables the closing plate 10 to rotate around the fixed block 3, thereby realizing the sliding of the T-shaped sliding block 12 in the T-shaped sliding groove 11 and the extension of the air cylinder 7 to drive the closing plate 10 to rotate downward and close the inside of the ventilation pipeline 1, and the sliding of the T-shaped sliding block 12 in the T-shaped sliding groove 11 will squeeze the spring 14, the spring 14 provides a certain buffering effect, so that the linkage of each component is more stable, and provides elastic force in the retraction process of the closing plate 10, so that the retraction of the closing mechanism is more smooth;

[0038] When the closing mechanism performs the closing movement, the downward moving T-shaped slider 12 drives the left and right L-shaped plates 15 to move downward, cooperates with the action of the transmission plate 16 and the rotation of the rotating ring 18 on the sliding rod 17, realizes the downward moving of the L-shaped plate 15 drives the sliding rod 17 to slide along the sliding groove 19 to the left and right sides, so as to achieve the sliding of the sliding rod 17 drives the sealing plate 20 to slide along the inner wall of the containing groove 21 to the left and right sides and extrude with the inner wall of the ventilation cavity 2, further increases the sealing effect.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An emergency closing mechanism for air supply and exhaust openings, comprising a ventilation duct (1), characterised in that: The inside of the ventilation duct (1) is provided with a ventilation cavity (2), the inner wall of the ventilation cavity (2) is fixedly connected with a closing mechanism, and the inside of the closing mechanism is provided with a sealing mechanism. The closing mechanism comprises two fixed blocks (3), the top ends of the two fixed blocks (3) are fixedly connected to the left and right inner walls of the top of the ventilation cavity (2), the bottom of the fixed block (3) is provided with a long slot (4), the inner wall of the long slot (4) is fixedly connected with a fixed rod (5), the outer part of the fixed rod (5) is rotatably connected with a rotating seat (6), the bottom end of the rotating seat (6) is fixedly connected with an air cylinder (7), the driving end of the air cylinder (7) is fixedly connected with a transmission block (8), the proximal side of the two fixed blocks (3) is rotatably connected with a rotating block (9), the proximal side of the two rotating blocks (9) is fixedly connected with a closing plate (10), the distal side of the two closing plates (10) is provided with a T-shaped sliding groove (11), the inner wall of the T-shaped sliding groove (11) is slidably connected with a T-shaped sliding block (12), and the left and right sides of the ventilation duct (1) are detachably connected with a ventilation port (22).

2. An emergency closure mechanism for an air supply and exhaust port according to claim 1, wherein: The sealing mechanism comprises a plurality of L-shaped plates (15), the proximal sides of the two L-shaped plates (15) are fixedly connected to the left and right sides of the T-shaped sliding block (12), the distal sides of the plurality of L-shaped plates (15) are rotatably connected with a transmission plate (16), the distal sides of the plurality of transmission plates (16) are fixedly connected with a rotating ring (18), the inner wall of the rotating ring (18) is rotatably connected with a sliding rod (17), and the proximal sides of the plurality of sliding rods (17) are fixedly connected with a sealing plate (20).

3. An emergency closure mechanism for an air supply and exhaust port according to claim 1, wherein: The outer part of the transmission block (8) is rotatably connected in the inside of the T-shaped sliding block (12), and the outer wall of the closing plate (10) is in contact with the inner wall of the ventilation cavity (2).

4. An emergency closure mechanism for an air supply and exhaust port according to claim 1, wherein: The upper and lower inner walls of the T-shaped sliding groove (11) are fixedly connected with a guide rod (13), and the inner wall of the T-shaped sliding block (12) is slidably connected to the outer wall of the guide rod (13).

5. An emergency closure mechanism for an air supply and exhaust port according to claim 4, wherein: The outer part of the guide rod (13) is sleeved with a spring (14), the bottom end of the spring (14) is fixedly connected to the bottom inner wall of the T-shaped sliding groove (11), and the top end of the spring (14) is fixedly connected to the bottom end of the T-shaped sliding block (12).

6. An emergency closure mechanism for an air supply and exhaust port according to claim 2, wherein: The proximal sides of the plurality of L-shaped plates (15) are slidably connected to the distal sides of the two closing plates (10), and the proximal sides of the plurality of rotating rings (18) are in contact with the distal sides of the two closing plates (10).

7. An emergency closure mechanism for an air supply and exhaust port according to claim 2, wherein: The left and right sides of the inside of the closing plate (10) are provided with a sliding groove (19), and the outer wall of the sliding rod (17) is slidably connected to the inner wall of the sliding groove (19).

8. An emergency closure mechanism for an air supply and exhaust port according to claim 2, wherein: The left and right sides of the inside of the closing plate (10) are provided with a containing groove (21), the outer wall of the sealing plate (20) is slidably connected to the inner wall of the containing groove (21), and the distal sides of the plurality of sealing plates (20) are in contact with the inner wall of the ventilation cavity (2).

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