Remote control type smoke exhaust and ventilation fireproof valve with good sealing effect

Abstract

The utility model discloses a remote control type smoke exhaust and ventilation fireproof valve which is good in sealing effect and comprises a valve body, a partition fixing beam is fixed to the middle of the valve body, a plurality of blade shafts are movably connected to a left side beam fixed to a left side plate of the valve body, and the partition fixing beam and a right side beam fixed to a right side plate of the valve body are movably connected. Each blade shaft is provided with two blades, the two blades are located on the two sides of the partition fixing beam respectively, wind blocking strips are fixed to the top face and the bottom face in the valve body, the wind blocking strips are long strips with right-angle sections, one side plate of each wind blocking strip is fixed to the top face or the bottom face in the valve body, and the other side plate of each wind blocking strip is perpendicular to the top face or the bottom face in the valve body. An elastic sealing metal sheet bent in a zigzag shape is fixed to the rear wall face of the lower portion of each blade. The zigzag bent elastic sealing metal sheet is used for sealing, the elastic deformation amount is large, the elastic sealing effect is good, the overall strength of the blades is improved through the reinforcing sheet bodies installed on the blades, and the blades are not prone to deformation.

Description

Technical field:

[0001] The utility model relates to the technical field of fan equipment, and more specifically to a remote-controlled smoke exhaust ventilation fire damper with good sealing effect. Background technology:

[0002] At present, the general fire damper is sealed by fixing non-combustible strips such as asbestos on the inner wall of the valve body. However, due to elastic deformation, the gap between the blades cannot be guaranteed and it cannot be adjusted according to the temperature.

[0003] Therefore, an elastic stainless steel sheet is installed between the interior of the existing valve body and the blades to improve the sealing effect. However, there is a problem that the elastic effect of the elastic stainless steel sheet is limited and the elastic pressing effect is general. Utility model content:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a remote-controlled smoke exhaust ventilation fire damper with good sealing effect. The utility model adopts a zigzag-bent elastic sealing metal sheet as a seal, has a large elastic deformation amount, and has a good elastic sealing effect. In addition, a reinforcing sheet installed on the blade improves the overall strength of the blade, making it difficult for the blade to deform, thereby ensuring the sealing effect.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A remote-controlled smoke exhaust ventilation fire damper with good sealing effect comprises a valve body, the valve body is provided with a remote automatic actuator, a partition fixed beam is fixed to the middle part of the valve body, a plurality of blade shafts are movably connected to the left beam fixed to the left plate of the valve body, the partition fixed beam and the right beam fixed to the right plate of the valve body, each blade shaft is provided with two blades, the two blades are respectively located on both sides of the partition fixed beam, all blades on the left side of the partition fixed beam and all blades on the right side of the partition fixed beam are connected by corresponding blade connecting rods, a wind shield strip is fixed to the top and bottom surfaces of the valve body, the wind shield strip is a long strip with a right-angled cross section, one side plate of the wind shield strip is fixed to the top or bottom surface of the valve body, and the other side plate is perpendicular to the top or bottom surface of the valve body, and a zigzag-shaped elastic sealing metal sheet is fixed to the rear wall surface of the lower part of each blade;

[0007] The rear end face of the elastic sealing metal sheet of the lowest blade is pressed against the front end face of the corresponding side panel of the lower windshield strip; among the two adjacent blades, the rear end face of the elastic sealing metal sheet at the rear of the lower end of the upper blade is pressed against the front end face of the upper end of the lower blade; the front wall surface of the upper end of the upper blade is pressed against the rear end of the zigzag-bent elastic sealing metal sheet fixed to the rear wall surface of the corresponding side panel of the upper windshield strip.

[0008] The elastic sealing metal sheet is a bent sheet formed by continuous bending of stainless steel in a zigzag shape, and has a good elastic effect, which greatly improves the effect of subsequent sealing pressing.

[0009] The blades are fixed on the corresponding blade shafts, a rotating connection seat is fixed on the blade shaft, and all the rotating connection seats on the left or right side are movably connected to the corresponding blade connecting rods through hinge shafts.

[0010] The upper and lower front walls of the blade are both fixed with reinforcing sheets, and the middle of the reinforcing sheets is formed with a middle strip protrusion extending leftward and rightward toward the front, and the middle strip protrusion corresponds to the front long groove extending leftward and rightward formed in the middle of the upper or lower front wall of the blade, and the wall plate at the rear wall of the front long groove protrudes backward, which greatly improves the strength of the blade.

[0011] The remote automatic actuator 20 is connected to the end of one of the blade shafts 13 .

[0012] The outstanding effects of the utility model are:

[0013] Compared with the prior art, it uses a zigzag-bent elastic sealing metal sheet as a seal, which has a large elastic deformation and a good elastic sealing effect. In addition, the reinforcing sheet installed on the blade improves the overall strength of the blade, making the blade less likely to deform and ensuring the sealing effect. Description of the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is the AA cross-sectional view of the utility model;

[0016] Figure 3 yes Figure 2 A partial enlarged view of

[0017] Figure 4 yes Figure 2 a partial enlarged view of another part;

[0018] Figure 5 It is a partial top view of the utility model;

[0019] Figure 6 This is a partial enlarged view of the left beam;

[0020] Figure 7 This is a partial enlarged view of the separation fixed beam. Specific implementation method:

[0021] For example, see Figures 1 to 7 As shown ( Figure 1It is a simple schematic diagram, a remote-controlled smoke exhaust ventilation fire damper with good sealing effect, including a valve body 10, on which a remote automatic actuator 20 is provided. The remote automatic actuator 20 adopts components known in the market, so it is not described in detail. The remote automatic actuator 20 can be controlled by a remote controller.

[0022] A partitioning fixed beam 40 is fixed to the middle of the valve body 10, and a plurality of blade shafts 13 are movably connected to the left beam fixed to the left plate of the valve body 10, the partitioning fixed beam 40 and the right beam fixed to the right plate of the valve body. Two blades 14 are arranged on each blade shaft 13, and the two blades 14 are respectively located on both sides of the partitioning fixed beam 40. All blades 14 on the left side of the partitioning fixed beam 40 and all blades 14 on the right side are connected by corresponding blade connecting rods 15. Wind shield strips 16 are fixed to the top and bottom surfaces of the valve body 10. The wind shield strips 16 are long strips with a right-angled cross section, one side plate of which is fixed to the top or bottom surface of the valve body 10, and the other side plate is perpendicular to the top or bottom surface of the valve body 10. The rear wall surface of the lower part of each blade 14 is fixed with a zigzag-shaped elastic sealing metal sheet 1;

[0023] The rear end face of the elastic sealing metal sheet 1 of the lowest blade 14 is pressed against the front end face of the corresponding side panel of the lower windshield strip 16; among the two adjacent blades 14, the rear end face of the elastic sealing metal sheet 1 at the rear of the lower end of the upper blade 14 is pressed against the front end face of the upper end of the lower blade 14; the front wall surface of the upper end of the upper blade 14 is pressed against the rear end of the zigzag-bent elastic sealing metal sheet 1 fixed on the rear wall surface of the corresponding side panel of the upper windshield strip 16.

[0024] The elastic sealing metal sheet 1 is a bent sheet formed by bending stainless steel. The zigzag-shaped bent elastic sealing metal sheet 1 improves its elastic sealing effect, and the elastic effect is very good.

[0025] Furthermore, a stainless steel elastic sealing strip 2 is fixed on the inner side wall of the left and right beams of the valve body 10, and the front and rear ends of the stainless steel elastic sealing strip 2 of the valve body 10 are formed with bending edges, which are fixed on the front wall surface or rear wall surface of the left beam or the right beam, and the middle part of the left and right sides of the partitioning fixed beam 40 is formed with a raised strip portion, and the bending edges formed on the front and rear ends of the stainless steel elastic sealing strip 2 are fixed on the front wall surface or rear wall surface of the corresponding raised strip portion, and the stainless steel elastic sealing strip 2 faces the side wall of the raised strip portion of the left beam, the right beam or the partitioning fixed beam 40, and is in an arc-shaped bending shape, and the left and right ends of the blade 14 are close to or close to the outer wall surface of the corresponding stainless steel elastic sealing strip 2. The stainless steel elastic sealing strip 2 improves the sealing effect.

[0026] Furthermore, the blade 14 is fixed on the corresponding blade shaft 13, and a rotating connection seat 12 is fixed on the blade shaft 13. All the rotating connection seats 12 on the left or right side are movably connected to the corresponding blade connecting rod 15 through a hinge shaft.

[0027] The upper and lower front wall surfaces of the blade 14 are fixed with a reinforcing sheet 30, and the middle part of the reinforcing sheet 30 is formed with a middle strip protrusion extending left and right to the front, and the middle strip protrusion corresponds to the front long groove extending left and right and extending backward formed in the middle of the upper or lower front wall surface of the blade 14, and the wall panel at the rear wall surface of the front long groove protrudes backward.

[0028] The reinforcing sheet 30 improves the strength of the upper and lower parts of the blade 14. At the same time, the middle part of the reinforcing sheet 30 is formed with a middle strip protrusion extending left and right to the front. The middle strip protrusion corresponds to the front long groove extending left and right and extending backward formed in the middle of the upper or lower front wall surface of the blade 14. The wall panel at the rear wall surface of the front long groove protrudes backward, which further improves the strength of the upper and lower parts of the blade 14.

[0029] There is a gap of 2 mm to 3 mm between the outer wall of the stainless steel elastic sealing strip 2 and the left end face or right end face of the corresponding blade 14. Figure 6 and 7 There is a gap between the stainless steel elastic sealing strip 2 and the installation position in the figure for the convenience of displaying the structure. In the actual installation process, there is no gap and the structure is fixed in direct contact.

[0030] The remote automatic actuator 20 is connected to the end of one of the blade shafts 13 .

[0031] After the present embodiment is installed in an exhaust and smoke exhaust duct or under a ventilator, when a fire or other accident occurs, the remote automatic actuator 20 can be controlled by a remote controller to close all blades 14, and the zigzag-bent elastic sealing metal sheet 1 is elastically pressed to improve the sealing effect.

[0032] Finally, the above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect, comprising a valve body (10), wherein the valve body (10) is provided with a remote automatic actuator (20), characterized in that: A partitioning fixed beam (40) is fixed in the middle of the valve body (10), and a plurality of blade shafts (13) are movably connected to a left beam fixed on the left plate of the valve body (10), the partitioning fixed beam (40) and a right beam fixed on the right plate of the valve body (10). Two blades (14) are provided on each blade shaft (13), and the two blades (14) are respectively located on both sides of the partitioning fixed beam (40). All blades (14) on the left side of the partitioning fixed beam (40) and all blades (14) on the right side are connected by corresponding blade connecting rods (15). Wind shield strips (16) are fixed on the top and bottom surfaces of the valve body (10). The wind shield strip (16) is a long strip with a right-angled cross section, one side plate of which is fixed on the top or bottom surface of the valve body (10), and the other side plate is perpendicular to the top or bottom surface of the valve body (10). The rear wall surface of the lower part of each blade (14) is fixed with a zigzag-shaped elastic sealing metal sheet (1); The rear end face of the elastic sealing metal sheet (1) of the lowest blade (14) is pressed against the front end face of the corresponding side plate of the lower windshield strip (16); among two adjacent blades (14), the rear end face of the elastic sealing metal sheet (1) at the rear of the lower end of the upper blade (14) is pressed against the front end face of the upper end of the lower blade (14); the front wall surface of the upper end of the highest blade (14) is pressed against the rear end of the zigzag-shaped fixed elastic sealing metal sheet (1) on the rear wall surface of the corresponding side plate of the upper windshield strip (16).

2. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect according to claim 1, characterized in that: The elastic sealing metal sheet (1) is a bent sheet formed by bending stainless steel.

3. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect according to claim 1, characterized in that: A stainless steel elastic sealing strip (2) is fixed on the inner wall of the left and right beams of the valve body (10), and the front and rear ends of the stainless steel elastic sealing strip (2) of the valve body (10) are formed with bending edges, which are fixed to the front wall surface or rear wall surface of the left beam or the right beam. A raised strip portion is formed in the middle of the left and right sides of the partitioning fixed beam (40), and the bent edges formed at the front and rear ends of the stainless steel elastic sealing strip (2) are fixed to the front wall surface or rear wall surface of the corresponding raised strip portion. The stainless steel elastic sealing strip (2) faces the side wall of the raised strip portion of the left beam, the right beam or the partitioning fixed beam (40), and is in an arc-shaped bending shape. The left and right ends of the blade (14) are close to or tightly attached to the outer wall surface of the corresponding stainless steel elastic sealing strip (2).

4. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect according to claim 3, characterized in that: The blade (14) is fixed on a corresponding blade shaft (13), a rotating connection seat (12) is fixed on the blade shaft (13), and all the rotating connection seats (12) on the left or right side are movably connected to the corresponding blade connecting rod (15) through a hinge shaft.

5. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect according to claim 1, characterized in that: The upper and lower front wall surfaces of the blade (14) are both fixed with a reinforcing sheet body (30), and the middle part of the reinforcing sheet body (30) is formed with a middle strip protrusion extending leftward and rightward toward the front, and the middle strip protrusion corresponds to a front long groove extending leftward and rightward and extending backward formed in the middle part of the upper or lower front wall surface of the blade (14), and the wall plate at the rear wall surface of the front long groove protrudes backward.

6. A remote-controlled smoke exhaust ventilation fire damper with good sealing effect according to claim 3, characterized in that: There is a gap of 2 mm to 3 mm between the outer wall surface of the stainless steel elastic sealing strip (2) and the left end surface or the right end surface of the corresponding blade (14).

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