Efficient smoke exhaust fireproof valve and production device thereof

Abstract

The invention relates to the technical field of efficient smoke exhaust fireproof valves, and discloses an efficient smoke exhaust fireproof valve and a production device thereof.The efficient smoke exhaust fireproof valve comprises a shell, a plurality of fan blades are rotationally installed in the shell, a rotating piece used for driving the fan blades to rotate is installed on the outer wall of the shell, end plates are fixed to the two ends of the shell, and the efficient smoke exhaust fireproof valve further comprises rubber rings fixed to the outer sides of the fan blades; the smoke exhaust fireproof valve comprises a shell and two connecting parts, each connecting part comprises two butt joint plates and a connecting pipe, the two butt joint plates are fixed to the two ends of the connecting pipe, and one butt joint plate is in butt joint with an end plate outside the shell through a bolt. According to the technical scheme, gaps can be reduced through the characteristic that the rubber ring extrudes towards the direction, so that the sealing effect is improved, meanwhile, through cooperation with the connecting parts with the two ends in butt joint, the adaptability is higher when the device is in butt joint with the flue, and the situation that smoke is exhausted from the gaps in butt joint with the flue due to the fact that the device cannot be tightly attached to the flue in butt joint is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of high-efficiency smoke exhaust fire dampers, and in particular to a high-efficiency smoke exhaust fire damper and a production device thereof. Background Art

[0002] The smoke exhaust fire damper is a fire protection component installed on the pipe of the mechanical smoke exhaust system. It is usually in an open state. When a fire occurs, the smoke exhaust is opened. When the smoke temperature in the smoke exhaust pipe reaches 280 degrees, it is closed and meets the smoke leakage and fire resistance integrity requirements within a certain period of time, playing a role in isolating smoke and preventing fire.

[0003] The main components of the smoke exhaust fire damper are composed of a square frame and a number of blades installed in the square frame. The smoke exhaust fire damper is in an open state by rotating a number of blades to a horizontal state, and is in a closed state by rotating a plurality of blades to a vertical state, thereby closing the pipe. However, traditional smoke exhaust fire dampers have errors in the production and assembly of their components, resulting in gaps when closed, resulting in poor sealing and air leakage, thereby affecting smoke exhaust from other pipes. After the traditional smoke exhaust fire damper is prepared, it is difficult to observe whether it is leaking, so it is impossible to screen out smoke exhaust fire dampers with poor sealing effects. Summary of the invention

[0004] The purpose of the present invention is to provide a high-efficiency smoke exhaust fire damper and a production device thereof, so as to solve the problem that the high-efficiency smoke exhaust fire damper mentioned in the above background technology has poor air tightness and it is difficult to effectively detect its air tightness during the production process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency smoke exhaust fire damper, comprising an outer shell, a plurality of fan blades are rotatably installed in the outer shell, a rotating part for driving the plurality of fan blades to rotate is installed on the outer wall of the outer shell, end plates are fixed at both ends of the outer shell, and also includes a rubber ring fixed to the outside of the fan blade; and two connecting parts, the connecting parts include two docking plates and a connecting pipe, the two docking plates are fixed at both ends of the connecting pipe, and one of the docking plates is docked with the end plate outside the outer shell by bolts.

[0006] A production device for a high-efficiency smoke exhaust fire damper is used for the production of a high-efficiency smoke exhaust fire damper. The production device for a high-efficiency smoke exhaust fire damper includes a detection pool, support frames are fixed on the tops of both sides of the detection pool, and several shells are placed in the detection pool in sequence. The detection pool is filled with water, and a transmission unit that fits with the end plate is installed on the support frame; and an airtightness detection unit, which is installed on one side of the detection pool and fits with the end plate to perform airtightness detection on the internal components of the shell; and a positioning unit, which is used to position the shell to be detected.

[0007] Preferably, the transmission unit includes a plurality of rollers installed on the top of the support frame, and a driving wheel is rotatably installed on one end of the support frame away from the airtightness detection unit. A driving motor is fixed to the outer wall of the detection pool through a motor frame, and the output end of the driving motor is fixed to the axis of the driving wheel. The end plate is driven to move by the rotation of the driving wheel, and multiple rollers support the end plate.

[0008] Preferably, the air tightness detection unit includes a lifting assembly, a bonding plate and an adjustment plate. The lifting assembly is installed on the outside of the detection pool and is used to drive the adjustment plate to lift and move. A buffer is installed between the adjustment plate and the bonding plate. The bonding plate is bonded to the outside of the end plate, and an air transfer sleeve is fixed between the bonding plate and the adjustment plate. An air guide tube connected to the air transfer sleeve is fixed to the outer end of the adjustment plate.

[0009] Preferably, the lifting assembly includes a lifting motor and a sliding rod installed on one side of the detection pool, the output end of the lifting motor is fixed with a screw rod through a coupling, and the outer side of the screw rod is threadedly sleeved with a movable seat sleeved with the sliding rod, and the movable seat is fixed to the adjustment plate.

[0010] Preferably, the buffer member comprises a buffer rod fixed on the fitting plate, the buffer rod slides through the adjustment plate and is fixed with an end block, and a buffer spring is sleeved on the outer side of the buffer rod and abuts against the fitting plate and the adjustment plate.

[0011] Preferably, the positioning unit includes a positioning plate, the support frame is provided with two positioning openings, two mounting plates are fixed at the positions of the two positioning openings on the inner wall of the support frame, and the two mounting plates are installed respectively corresponding to the top and bottom of the positioning plate, and positioning parts are installed on adjacent sides of the two mounting plates, and are fitted with the outer sides of the two outer shells through the two positioning parts, and connecting frame one and connecting frame two are respectively fixed on both ends of the positioning plate, and locking protrusions are fixed on adjacent sides of the connecting frame one and the connecting frame two, two rail openings are provided on the support frame, and a linkage part is fixed on the positioning plate, through which one of the locking protrusions is always against the corresponding positioning part.

[0012] Preferably, the linkage part includes a connecting plate that slides through the two rail openings, the connecting plate is fixed to the positioning plate, and the outer ends of the two connecting plates are fixed with linkage plates, the sliding grooves at both ends of the linkage plates are penetrated by connecting rods fixed to the outer wall of the detection pool, the outer side of the connecting rod is sleeved with a reset spring for pushing the linkage plate up, and the bottom of the moving seat is fixed with a linkage block that abuts against the linkage plate.

[0013] Preferably, the positioning member comprises a positioning bar, which is rotatably connected to the mounting plate via a rotating shaft, and a curved rod plugged into the mounting plate is fixed to the positioning bar, and a curved spring for pushing the positioning bar to rotate is sleeved on the outer side of the curved rod.

[0014] Preferably, the driving wheel is an anti-skid wheel, and the outer sides of the plurality of rollers are smooth surfaces.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The smoke exhaust fire damper designed by the present invention adds a rubber ring to the outside of the fan blade, so that after the fan blade is vertically closed, the gap can be reduced through the squeezing characteristics of the rubber ring, thereby improving the sealing effect. At the same time, it cooperates with the connecting parts at both ends to make it more adaptable when docking with the flue, avoiding the discharge of smoke from the gap between the smoke and the flue due to the inability to fit tightly when docking with the flue.

[0016] 2. The transmission unit, air tightness detection unit and positioning unit designed in the present invention cooperate with each other to perform air blowing detection on multiple smoke exhaust fire dampers in sequence, and can effectively screen out products that do not meet the air tightness standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the smoke exhaust fire damper of the present invention; Figure 2 This is an exploded view of the smoke exhaust fire damper of the present invention; Figure 3 It is a front view of the housing of the present invention; Figure 4 This is a schematic diagram of the air tightness test of the smoke exhaust fire damper of the present invention during production; Figure 5 This is a side view of the smoke exhaust fire damper of the present invention during air tightness testing; Figure 6 It is a schematic diagram of the connection between the airtightness detection unit and the housing of the present invention; Figure 7 This is a schematic diagram showing the connection between the positioning unit of the present invention and the outermost housing; Figure 8 A schematic diagram of the position relationship between the positioning unit and the support frame of the present invention; Fig. 9 This is a schematic diagram of the positioning unit structure of the present invention; Fig.10 It is a schematic diagram of the linkage structure of the present invention.

[0018] In the figure: 1. Shell; 2. Fan blades; 3. End plate; 4. Rubber ring; 5. Connecting parts; 6. Docking plate; 7. Connecting pipe; 8. Detection pool; 9. Support frame; 10. Transmission unit; 11. Air tightness detection unit; 12. Positioning unit; 13. Roller; 14. Driving wheel; 15. Driving motor; 16. Lifting assembly; 17. Laminating plate; 18. Adjusting plate; 19. Buffer; 20. Air transmission sleeve; 21. Lifting motor; 22. Sliding rod ; 23. Screw rod; 24. Moving seat; 25. Buffer rod; 26. Buffer spring; 27. Positioning plate; 28. Positioning port; 29. ​​Mounting plate; 30. Positioning piece; 31. Connecting frame 1; 32. Connecting frame 2; 33. Locking protrusion; 34. Track port; 35. Linkage piece; 36. Connecting plate; 37. Linkage plate; 38. Connecting rod; 39. Reset spring; 40. Linkage block; 41. Positioning strip; 42. Arc rod; 43. Arc spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-Figure 3 , a high-efficiency smoke exhaust fire damper shown in the figure includes a shell 1, a plurality of blades 2 are rotatably installed in the shell 1, a rotating member for driving the plurality of blades 2 to rotate is installed on the outer wall of the shell 1, end plates 3 are fixed at both ends of the shell 1, and also includes a rubber ring 4 fixed on the outside of the blade 2; and two connecting parts 5, the connecting part 5 includes two docking plates 6 and a connecting pipe 7, the two docking plates 6 are fixed at both ends of the connecting pipe 7, and one of the docking plates 6 is docked with the end plate 3 outside the shell 1 through bolts; In this solution, the traditional liquid discharge fire damper is optimized by adding a rubber ring 4 to the fan blade 2 so that when it is closed, the adjacent rubber rings 4 will fit with the inner wall of the shell 1, or the two rubber rings 4 will fit with each other, thereby achieving better sealing performance. At the same time, the connecting component 5 is designed, in which the connecting pipe 7 is a rubber tube with a certain flexibility and can be distorted accordingly. When the two ports of the flue are not aligned, the connecting component 5 can be well connected with the two ports of the flue to avoid gaps during docking, which causes smoke to escape from the gaps during smoke exhaust.

[0021] It is also necessary to say that the smoke exhaust fire damper designed in the present solution optimizes its own fan blades 2 to ensure that smoke will not escape from the outer casing 1 when in a sealed state, and at the same time optimizes the port connection component 5 with the flue. The traditional direct screw docking method requires that the ports of the two flue be in a horizontal alignment. Once there is an error, a gap will appear in the docking. In the present solution, the connecting component 5 has a higher degree of freedom and can meet the docking requirements at different heights, so that there is no gap after docking, and there will be no air leakage during smoke transmission, thereby optimizing the air tightness from both the product itself and the connection.

[0022] See also Figure 4-Figure 6 The production device of the high-efficiency smoke exhaust fire damper includes a detection pool 8, support frames 9 are fixed on the top of both sides of the detection pool 8, a plurality of shells 1 are placed in sequence in the detection pool 8, the detection pool 8 is filled with water, and a transmission unit 10 that fits with the end plate 3 is installed on the support frame 9; and an airtightness detection unit 11, which is installed on one side of the detection pool 8 and fits with the end plate 3 to perform airtightness detection on the internal parts of the shell 1; and a positioning unit 12, which is used to position the shell 1 to be detected; In this solution, the detection pool 8 is filled with water, and the shells 1 are placed in the detection pool 8 in sequence. At the same time, the water in the detection pool 8 is just between the end plate 3 and the fan blades 2 at the bottom of the shell 1. The airtightness detection unit 11 is used to blow air into multiple shells 1 in sequence to observe whether there are bubbles in the water to determine whether the airtightness meets the standard. At the same time, the transmission unit 10 and the positioning unit 12 are used to push and position the shells 1, so as to facilitate the detection of multiple shells 1.

[0023] For further information, see Figure 4 and Figure 5 The transmission unit 10 includes a plurality of rollers 13 installed on the top of the support frame 9. A driving wheel 14 is rotatably installed at one end of the support frame 9 away from the airtightness detection unit 11. A driving motor 15 is fixed to the outer wall of the detection pool 8 through a motor frame. The output end of the driving motor 15 is fixed to the shaft of the driving wheel 14. The end plate 3 is driven to move by the rotation of the driving wheel 14. The plurality of rollers 13 support the end plate 3. The principle of the transmission unit 10 driving the shell 1 to move is: the driving motor 15 drives the outermost driving wheel 14 to rotate, so that the end plate 3 and the shell 1 in contact with it move accordingly, and multiple shells 1 are placed in the detection pool 8 in sequence and contact with the roller 13. Through the mutual fit between the multiple shells 1, only the outermost shell 1 needs to be pushed to drive all the shells 1 in the detection pool 8 to move accordingly. In order to improve the pushing stability of the shell 1, the driving wheel 14 is designed to be an anti-slip wheel, and the outer sides of the multiple rollers 13 are smooth.

[0024] For further information, see Figure 4-Figure 6 The air tightness detection unit 11 includes a lifting assembly 16, a bonding plate 17 and an adjustment plate 18. The lifting assembly 16 is installed on the outside of the detection pool 8 and is used to drive the adjustment plate 18 to move up and down. A buffer 19 is installed between the adjustment plate 18 and the bonding plate 17. The bonding plate 17 is bonded to the outside of the end plate 3. An air transfer sleeve 20 is fixed between the bonding plate 17 and the adjustment plate 18. An air guide tube connected to the air transfer sleeve 20 is fixed at the outer end of the adjustment plate 18; Among them, the lifting assembly 16 includes a lifting motor 21 and a sliding rod 22 installed on one side of the detection pool 8. The output end of the lifting motor 21 is fixed with a screw rod 23 through a coupling. The outer thread of the screw rod 23 is sleeved with a moving seat 24 sleeved with the sliding rod 22. The moving seat 24 is fixed to the adjustment plate 18.

[0025] The airtightness detection unit 11 detects the housing 1 in the following steps: First, the housing 1 is moved to the area to be detected by the transmission unit 10 and positioned by the positioning unit 12; Subsequently, the lifting motor 21 rotates to drive the screw rod 23 to rotate, so that the moving seat 24 drives the adjustment plate 18 to move downward accordingly, drives the buffer member 19 and the bonding plate 17 to move downward accordingly, and fits with the end plate 3 on the shell 1. After fitting, the gas is blown into the air guide pipe by using an external blowing device, and the gas transmission sleeve 20 is blown to make the shell 1 in a high pressure state; Then, the personnel observe whether bubbles appear in the water of the detection pool 8 to judge whether the air tightness of the fan blades 2 in the housing 1 meets the standard when the fan blades 2 are closed; Finally, the lifting assembly 16 drives the corresponding adjustment of the positioning unit 12 on the laminating plate 17, and cooperates with the transmission unit 10, so that the shell 1 after the inspection passes through the inspection area, and the next shell 1 enters the inspection area; For further information, see Figure 6-Figure 10 The positioning unit 12 includes a positioning plate 27, two positioning openings 28 are provided on the support frame 9, two mounting plates 29 are fixed at the positions of the two positioning openings 28 on the inner wall of the support frame 9, and the two mounting plates 29 are respectively installed corresponding to the top and bottom of the positioning plate 27, and the adjacent sides of the two mounting plates 29 are installed with positioning members 30, and the two positioning members 30 are fitted with the outer sides of the two shells 1, and the two ends of the positioning plate 27 are respectively fixed with a connecting frame 1 31 and a connecting frame 2 32, and the adjacent sides of the connecting frame 1 31 and the connecting frame 2 32 are fixed with locking protrusions 33, and two track openings 34 are provided on the support frame 9, and a linkage member 35 is fixed on the positioning plate 27, and one of the locking protrusions 33 is always against the corresponding positioning member 30 through the linkage member 35; Among them, the positioning member 30 includes a positioning bar 41, which is rotatably connected to the mounting plate 29 through a rotating shaft. An arc rod 42 that is plugged into the mounting plate 29 is fixed to the positioning bar 41, and an arc spring 43 is sleeved on the outer side of the arc rod 42 for pushing the positioning bar 41 to rotate.

[0026] The principle of positioning the housing 1 by the positioning unit 12 is as follows: when the moving seat 24 moves downward, the linkage member 35 drives the positioning plate 27 to move downward. At this time, the connecting frame 1 31 and the connecting frame 2 32 will move downward synchronously, and the locking protrusion 33 on the connecting frame 1 31 will abut against one side of the positioning strip 41, while the locking protrusion 33 on the connecting frame 2 32 will be separated from the positioning strip 41. At this time, the outermost positioning strip 41 is limited, and the transmission unit 10 drives multiple housings 1 to move in sequence until they abut against the outermost positioning strip 41, so that the outermost housing 1 is in the area to be detected, and then the moving seat 24 continues to move downward, so that the fitting plate 17 fits with the end plate 3 on the housing 1, and the airtightness test is performed; After the detection is completed, the moving seat 24 is driven upward by the lifting assembly 16. At this time, under the action of the linkage member 35, the positioning plate 27 is moved upward, so that the locking protrusion 33 on the connecting frame 1 31 is separated from the positioning strip 41, and the locking protrusion 33 on the connecting frame 2 32 begins to abut against another positioning strip 41. At this time, the outermost shell 1 can knock open the outermost positioning strip 41 by external force, and the detected shell 1 is collected. After that, the moving seat 24 is moved downward to drive the linkage member 35 and the positioning plate 27 to move downward, so that the outermost positioning strip 41 is locked, and the next shell 1 is moved to the area to be detected. It should also be noted that when the positioning bar 41 is not resisted by the locking protrusion 33, the positioning bar 41 will be pushed away by external force. When the positioning bar 41 is not pushed by external force, under the action of the arc spring 43, the positioning bar 41 will be reset to a state perpendicular to the support frame 9, and cooperate with the locking protrusion 33 to position the shell 1.

[0027] Example 2: Please refer to Figure 6 and Fig.10 This embodiment further explains the first embodiment, and the difference lies in the development of one of the implementation methods of the linkage member 35.

[0028] Specifically, the linkage part 35 includes a connecting plate 36 that slides through the two track openings 34, the connecting plate 36 is fixed to the positioning plate 27, the outer ends of the two connecting plates 36 are fixed with linkage plates 37, the sliding grooves at both ends of the linkage plates 37 are penetrated by connecting rods 38 fixed to the outer wall of the detection pool 8, the outer side of the connecting rod 38 is sleeved with a reset spring 39 for pushing the linkage plate 37 upward, and the bottom of the moving seat 24 is fixed with a linkage block 40 connected to the linkage plate 37.

[0029] In this solution, when the moving seat 24 moves downward, the linkage block 40 will fit with the linkage plate 37, and as the moving seat 24 moves downward, the linkage plate 37, the connecting plate 36 and the positioning plate 27 are driven to move downward, so that the connecting frame 1 31 and the connecting frame 2 32 move downward accordingly, and the outermost positioning strip 41 begins to be locked and positioned; When the linkage block 40 moves upward, the reset spring 39 causes the linkage plate 37 to move upward in the track opening 34 accordingly, so that the connecting frame 1 31 and the connecting frame 2 32 move upward accordingly, so that the two locking protrusions 33 start to move, and the outermost positioning strip 41 is no longer blocked, so that it is convenient for personnel to discharge the shell 1 after inspection; It should also be noted that, in this solution, when the linkage plate 37 is moved downward, one of the locking protrusions 33 will abut against the positioning bar 41 , and then the linkage plate 37 can continue to move downward for a distance to meet the subsequent downward movement of the moving seat 24 .

[0030] Example 3: Please refer to Figure 5 and Figure 6 This embodiment further explains other embodiments, and the difference lies in that a buffer member 19 is added to improve the tightness of the bonding between the bonding plate 17 and the end plate 3 after contact.

[0031] Specifically, the buffer member 19 includes a buffer rod 25 fixed on the bonding plate 17, the buffer rod 25 slides through the adjustment plate 18 and is fixed with an end block, and the outer side of the buffer rod 25 is sleeved with a buffer spring 26 that abuts against the bonding plate 17 and the adjustment plate 18. After the bonding plate 17 is bonded with the end plate 3, the bonding plate 17 can be squeezed by moving the adjustment plate 18 downward, so that the bonding plate 17 and the end plate 3 are tightly bonded. At the same time, the outer end of the bonding plate 17 is made of rubber, which can improve the sealing effect.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency smoke exhaust fire damper, comprising: A housing (1), wherein a plurality of fan blades (2) are rotatably mounted in the housing (1), a rotating member for driving the plurality of fan blades (2) to rotate is mounted on an outer wall of the housing (1), and end plates (3) are fixed at both ends of the housing (1); It is characterized by further comprising: a rubber ring (4) fixed to the outside of the fan blade (2); and, Two connecting components (5), the connecting components (5) comprising two butt joint plates (6) and a connecting pipe (7), the two butt joint plates (6) being fixed at two ends of the connecting pipe (7), and one of the butt joint plates (6) being butt jointed with an end plate (3) outside the housing (1) by means of bolts.

2. A production device for high-efficiency smoke exhaust fire dampers, characterized in that: Used for producing a high-efficiency smoke exhaust fire damper as described in claim 1, the production device of the high-efficiency smoke exhaust fire damper comprises: A detection pool (8), wherein support frames (9) are fixed to the tops of both sides of the detection pool (8), a plurality of housings (1) are sequentially placed in the detection pool (8), the detection pool (8) is filled with water, and a transmission unit (10) is mounted on the support frame (9) and is in contact with the end plate (3); and, An airtightness detection unit (11), the airtightness detection unit (11) being installed on one side of the detection pool (8) and being in contact with the end plate (3) to perform airtightness detection on the internal components of the housing (1); and A positioning unit (12), wherein the positioning unit (12) is used for positioning the housing (1) to be detected.

3. The high-efficiency smoke exhaust fire damper according to claim 2 is characterized in that: The transmission unit (10) comprises a plurality of rollers (13) mounted on the top of a support frame (9); a driving wheel (14) is rotatably mounted on one end of the support frame (9) away from the airtightness detection unit (11); a driving motor (15) is fixed to the outer wall of the detection pool (8) via a motor frame, and an output end of the driving motor (15) is fixed to the shaft of the driving wheel (14); the end plate (3) is driven to move by the rotation of the driving wheel (14); and the plurality of rollers (13) support the end plate (3).

4. The high-efficiency smoke exhaust fire damper according to claim 3 is characterized in that: The airtightness detection unit (11) comprises a lifting component (16), a bonding plate (17) and an adjustment plate (18); the lifting component (16) is installed on the outside of the detection pool (8) and is used to drive the adjustment plate (18) to move up and down; a buffer member (19) is installed between the adjustment plate (18) and the bonding plate (17); the bonding plate (17) is bonded to the outside of the end plate (3); an air transfer sleeve (20) is fixed between the bonding plate (17) and the adjustment plate (18); and an air guide tube connected to the air transfer sleeve (20) is fixed to the outer end of the adjustment plate (18).

5. The high-efficiency smoke exhaust fire damper according to claim 4 is characterized in that: The lifting assembly (16) comprises a lifting motor (21) and a sliding rod (22) mounted on one side of the detection pool (8); a lead screw (23) is fixed to the output end of the lifting motor (21) via a coupling; and the outer side of the lead screw (23) is threadedly sleeved with a moving seat (24) sleeved with the sliding rod (22); and the moving seat (24) is fixed to the adjustment plate (18).

6. The high-efficiency smoke exhaust fire damper according to claim 4 is characterized in that: The buffer member (19) comprises a buffer rod (25) fixed on the bonding plate (17), the buffer rod (25) slidably passes through the adjustment plate (18) and is fixed with an end block, and a buffer spring (26) is sleeved on the outer side of the buffer rod (25) and abuts against the bonding plate (17) and the adjustment plate (18).

7. The high-efficiency smoke exhaust fire damper according to claim 5, characterized in that: The positioning unit (12) comprises a positioning plate (27), the support frame (9) is provided with two positioning openings (28), two mounting plates (29) are fixed at positions of the inner wall of the support frame (9) corresponding to the two positioning openings (28), and the two mounting plates (29) are respectively installed corresponding to the top and bottom of the positioning plate (27), the adjacent sides of the two mounting plates (29) are both installed with positioning pieces (30), and the two mounting plates (29) are fitted with the outer sides of the two shells (1) through the two positioning pieces (30), the two ends of the positioning plate (27) are respectively fixed with a connecting frame 1 (31) and a connecting frame 2 (32), and the adjacent sides of the connecting frame 1 (31) and the connecting frame 2 (32) are both fixed with locking protrusions (33), the support frame (9) is provided with two rail openings (34), and the positioning plate (27) is fixed with a linkage piece (35), and one of the locking protrusions (33) is always abutted against the corresponding positioning piece (30) through the linkage piece (35).

8. The high-efficiency smoke exhaust fire damper according to claim 7 is characterized in that: The linkage member (35) comprises a connecting plate (36) which slides through the two track openings (34); the connecting plate (36) is fixed to the positioning plate (27); and linkage plates (37) are fixed to the outer ends of the two connecting plates (36); connecting rods (38) which are fixed to the outer wall of the detection pool (8) are penetrated through the sliding grooves at both ends of the linkage plate (37); a return spring (39) for pushing the linkage plate (37) upward is sleeved on the outer side of the connecting rod (38); and a linkage block (40) which abuts against the linkage plate (37) is fixed to the bottom of the movable seat (24).

9. The high-efficiency smoke exhaust fire damper according to claim 7, characterized in that: The positioning member (30) comprises a positioning bar (41), the positioning bar (41) being rotatably connected to the mounting plate (29) via a rotating shaft, and an arc-shaped rod (42) plugged into the mounting plate (29) is fixed to the positioning bar (41), and an arc-shaped spring (43) for pushing the positioning bar (41) to rotate is sleeved on the outer side of the arc-shaped rod (42).

10. The high-efficiency smoke exhaust fire damper according to claim 3, characterized in that: The driving wheel (14) is an anti-slip wheel, and the outer sides of the plurality of rollers (13) are smooth surfaces.

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