An electric damper capable of closing quickly

Abstract

The present invention discloses an electric damper that can be closed quickly, comprising a frame, in which a plurality of reversible blades are arranged, and the frame is provided with an electric actuator, an electrical junction box, a force spring assembly, a transmission shaft locking and unhooking assembly, and an unhooking trigger device. When the electric actuator is powered on, the blades are opened by rotating counterclockwise to a limit stop, and the blades are kept in an open state. When a fire occurs, the fuse is activated to cut off the power supply of the electric actuator, and the electric actuator resets to a clockwise state. After rotating at a very small angle, the trigger position of the transmission shaft locking and unhooking device is reached to form a trigger, and the transmission shaft locking and unhooking device is triggered to be in an unhooked state. At this time, the unhooking trigger device is divided into two parts, the upper part still slowly resets clockwise with the rotation of the electric actuator, and the lower part is acted upon by the force spring assembly, and the blades can be quickly closed clockwise through the transmission mechanism.

Description

Technical Field

[0001] The invention relates to a wind gate, more specifically, to an electric wind gate which can be closed quickly. Background Art

[0002] When a fire occurs, it takes a long time for the electric actuator of the existing damper to rotate and close the blades, which seriously affects the safety and reliability of the damper. Summary of the invention

[0003] The present invention mainly solves the technical problems existing in the prior art, thereby providing an electric damper which can be closed quickly.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] An electric damper capable of rapid closing, characterized in that the electric damper capable of rapid closing comprises a frame, a plurality of reversible blades are arranged in the frame, an electric actuator and an electrical junction box are arranged on the frame, the frame, a transmission shaft locking unhooking assembly and an unhooking trigger device, the electric actuator drives the unhooking trigger device,

[0006] in,

[0007] The transmission shaft locking and unhooking assembly is between a locking position and a triggering position. When the transmission shaft locking and unhooking assembly is in the locking position, the blades remain in a closed state. When the transmission shaft locking and unhooking assembly is in the triggering position, the force spring assembly drives the blades and causes the blades to close quickly.

[0008] As a preferred embodiment of the present invention, the electric damper capable of rapid closing comprises a frame, a plurality of reversible blades are arranged in the frame, a control housing is arranged on the top of the frame, an electric actuator and an electrical junction box are arranged on the top of the control housing, a long strip-shaped linkage bar is arranged inside the control housing, a plurality of rotatable linkage rods are arranged on the linkage bar, the linkage rods are connected to the corresponding blades, the linkage rods comprise a long strip-shaped rod body, and an annular rod gear ring is arranged at the tail of the rod body.

[0009] The control housing is provided with a force-adding spring assembly, a transmission shaft locking and unhooking assembly and an unhooking trigger device.

[0010] The force-adding spring assembly comprises a coil spring, a reel center shaft and a reel end fixed shaft, wherein the reel center shaft runs through the center of the coil spring, and an annular reel gear ring is provided at the bottom of the reel center shaft, and the reel gear ring matches with the corresponding pull rod gear ring of the linkage pull rod.

[0011] The transmission shaft locking and unhooking assembly comprises a block-shaped placement block, a pair of fixing holes are provided on the placement block, a fixing screw is respectively provided in the fixing holes, a rotating through hole is provided at the center of the placement block, an eccentrically arranged limiting hole is provided on the side wall of the rotating through hole, a limiting screw is provided in the limiting hole, a circular fixing disc groove is provided at the tail of the rotating through hole, a rotatable rod-shaped trigger rod is provided in the rotating through hole, the trigger rod comprises a cylindrical trigger column, and a concave A semicircular limiting crescent groove, the limiting crescent groove cooperates with the limiting screw, the head of the trigger column is provided with a semi-cylindrical trigger protrusion, the side wall of the trigger protrusion is provided with a long strip of trigger paddle, the top side of the trigger paddle is provided with an inclined paddle slope, the tail of the trigger column is provided with a coil spring chuck, the coil spring chuck is provided with a small reset coil spring, a disc-shaped fixed disc head is provided in the fixed disc groove, a disc hole is provided in the center of the fixed disc head, and the coil spring chuck passes through the disc hole.

[0012] The unhooking trigger device comprises an upper driving seat and a lower driving seat, the electric actuator drives the upper driving seat, the upper driving seat is axially provided with a mounting pin hole, a trigger pin and a pin spring are arranged in the mounting pin hole, the trigger pin comprises a cylindrical pin rod, the upper part of the pin rod is sequentially provided with an annular limiting bushing, a cylindrical limiting column and a cylindrical trigger pin head, the diameter of the trigger pin head is smaller than the limiting column, the trigger pin head cooperates with the trigger rod, the lower driving seat is provided with an arc-shaped guide arc groove, one end of the guide arc groove is provided with a circular limiting card groove, the size of the limiting card groove is adapted to the limiting column, the size of the guide arc groove is adapted to the trigger pin head, and the diameter of the limiting column is larger than the width of the guide arc groove.

[0013] As a preferred embodiment of the present invention, the electrical junction box is connected to an external fuse.

[0014] The electric damper capable of rapid closing of the present invention has the following advantages: when a fire occurs, the electric actuator can be rotated at a small angle, and the damper can complete the closing action, so the damper has a sensitive response and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the electric damper capable of rapid closing of the present invention;

[0017] Figure 2 for Figure 1 A further three-dimensional structural schematic diagram of the electric damper capable of rapid closure;

[0018] Figure 3 for Figure 2 A detailed enlarged schematic diagram of area A in FIG.

[0019] Figure 4 for Figure 2 A further three-dimensional structural schematic diagram of the electric damper capable of rapid closure;

[0020] Figure 5 for Figure 4 Schematic diagram of the three-dimensional structure of the wind gate;

[0021] Figure 6 for Figure 5 A detailed enlarged schematic diagram of the B area;

[0022] Figure 7 for Figure 2 A further three-dimensional structural schematic diagram of the electric damper capable of rapid closure in FIG. 1 shows a transmission shaft locking and unhooking assembly and an unhooking trigger device;

[0023] Figure 8 for Figure 7 A further three-dimensional structural schematic diagram of the wind brake in FIG. 1 shows another perspective of the drive shaft locking and unhooking assembly and the unhooking trigger device;

[0024] Fig. 9 for Figure 8 A schematic diagram of the three-dimensional structure of the locking and unhooking assembly of the transmission shaft of the wind brake;

[0025] Fig.10 for Fig. 9 A detailed enlarged schematic diagram of the C region in FIG.

[0026] Fig.11 for Fig. 9 A schematic diagram of the three-dimensional structure of the placement block of the transmission shaft locking and unhooking assembly;

[0027] Fig.12 for Figure 7 A schematic diagram of the exploded three-dimensional structure of the unhooking trigger device of the wind brake;

[0028] Fig.13 It is a working schematic diagram of the present invention. At this time, the trigger pin head begins to squeeze the trigger paddle;

[0029] Fig.14 for Fig.13 A detailed enlarged schematic diagram of the D area in FIG.

[0030] Fig.15 It is a working schematic diagram of the present invention. At this time, the trigger pin head slides over the trigger paddle;

[0031] Fig.16 for Fig.15 A detailed enlarged schematic diagram of the E region in FIG.

[0032] Fig.17 It is a working schematic diagram of the present invention, at this time, the trigger pin head passes over the trigger paddle;

[0033] Fig.18 for Fig.17 A detailed enlarged schematic diagram of the F region;

[0034] Fig.19 This is a schematic diagram of the operation of the trigger pin of the wind brake of the present invention. At this time, the trigger pin has not been triggered;

[0035] Fig. 20 for Fig.19 Cross-sectional view of the stroke gate along line GG;

[0036] Fig.21 This is a schematic diagram of the operation of the trigger pin of the wind brake of the present invention. At this time, the trigger pin has not been triggered, which is another view;

[0037] Fig. 22 for Fig.21 A detailed enlarged schematic diagram of the H region in FIG.

[0038] Fig.23 This is a schematic diagram of the operation of the trigger pin of the wind brake of the present invention. At this time, the trigger pin is triggered;

[0039] Fig.24 for Fig.23 A cross-sectional view of the wind gate along line II;

[0040] Fig.25 This is a schematic diagram of the operation of the trigger pin of the wind brake of the present invention. At this time, the trigger pin is triggered, which is another view;

[0041] Fig.26 for Fig.25 A detailed enlarged schematic diagram of the J region in FIG. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0043] The electric damper 1 capable of rapid closing comprises a frame 2, in which a plurality of reversible blades 4 are arranged, a control housing 3 is arranged on the top of the frame 2, an electric actuator D and an electrical junction box E are arranged on the top of the control housing 3, and the electrical junction box E is connected to an external fuse E1.

[0044] The control housing 3 is provided with a long linkage bar 5 inside, and a plurality of rotatable linkage rods 6 are provided on the linkage bar 5. The linkage rods 6 are connected to the corresponding blades 4, and the linkage rods 6 include a long rod body 60, and a ring-shaped rod gear ring 61 is provided at the tail of the rod body 60.

[0045] The control housing 3 is provided with a force-adding spring assembly 7, a transmission shaft locking and unhooking assembly 8 and an unhooking trigger device 9.

[0046] The force spring assembly 7 includes a coil spring 71, a reel center shaft 72 and a reel end fixed shaft 73. The reel center shaft 72 runs through the center of the coil spring 71. The bottom of the reel center shaft 72 is provided with an annular reel gear ring 72. The reel gear ring 72 cooperates with the corresponding rod gear ring 61 of the linkage pull rod 6.

[0047] The transmission shaft locking and unhooking assembly 8 comprises a block-shaped placement block 81, a pair of fixing holes 813 are provided on the placement block 81, and a fixing screw 86 is respectively provided in the fixing holes 813. A rotating through hole 811 is provided at the center of the placement block 81, and an eccentrically arranged limiting hole 812 is provided on the side wall of the rotating through hole 811, and a limiting screw 85 is provided in the limiting hole 812. A circular fixing disc groove 8111 is provided at the tail of the rotating through hole 811, and a rotatable rod-shaped trigger rod 84 is provided in the rotating through hole 811. The trigger rod 84 comprises a cylindrical trigger column 841, and a concave semicircular shaped limiting crescent groove 842, the limiting crescent groove 842 cooperates with the limiting screw 85, the head of the trigger column 841 is provided with a semi-cylindrical trigger protrusion 844, the side wall of the trigger protrusion 844 is provided with a long strip of trigger paddle 845, the top side of the trigger paddle 845 is provided with an inclined paddle slope 8451, the tail of the trigger column 841 is provided with a coil spring clamp 843, the coil spring clamp 843 is provided with a small reset coil spring 83, a disc-shaped fixed disc head 82 is provided in the fixed disc groove 8111, the center of the fixed disc head 82 is provided with a disc hole 821, the coil spring clamp 843 passes through the disc hole 821,

[0048] The unhooking trigger device 9 comprises an upper driving seat 91 and a lower driving seat 92. The electric actuator D drives the upper driving seat 91. The upper driving seat 91 is provided with a mounting pin hole 911 in the axial direction. A trigger pin 94 and a pin spring 93 are provided in the mounting pin hole 911. The trigger pin 94 comprises a cylindrical pin rod 941. The upper part of the pin rod 941 is provided with an annular limiting bushing 942, a cylindrical limiting column 943 and a The cylindrical trigger pin head 944 has a diameter smaller than the limiting column 943, and the trigger pin head 944 cooperates with the trigger rod 84. The lower driving seat 92 is provided with an arc-shaped guide arc groove 922, and one end of the guide arc groove 922 is provided with a circular limiting groove 923. The size of the limiting groove 923 is adapted to the limiting column 943, and the size of the guiding arc groove 922 is adapted to the trigger pin head 944. The diameter of the limiting column 943 is larger than the width of the guiding arc groove 922.

[0049] The working mode of the electric damper 1 capable of rapid closing will be described below.

[0050] like Figure 2 Shown and Figure 3 As shown, when the fuse E1 senses a fire, the electrical junction box E stops supplying power to the electric actuator D, all blades 4 close quickly, and the damper 1 is in a closed state to prevent the fire from spreading.

[0051] When the fire is extinguished, the electrical junction box E supplies power to the electric actuator D again. Figure 2 From the observation angle in , the output shaft of the electric actuator D starts to rotate counterclockwise. Figure 3 and Figure 8 In order to more clearly express the working mode of the electric actuator D, as shown in the direction R. Figure 8 As shown, the viewing angle of the transmission shaft locking and unhooking assembly 8 and the unhooking trigger device 9 is turned over. Then, the output shaft of the electric actuator D continues to rotate counterclockwise, as shown in FIG. Fig.13 As shown, until the trigger pin head 944 of the trigger pin 94 starts to contact the trigger paddle 845 on the trigger protrusion 844 of the trigger rod 84, the trigger pin head 944 starts to squeeze the trigger paddle 845 and causes the trigger paddle 845 to rotate along the direction K. At the same time, the small reset coil spring 83 starts to wind and store energy. Then, the output shaft of the electric actuator D continues to rotate counterclockwise, as shown in FIG. Fig.15 and Fig.16 As shown in FIG. 1 , the trigger pin head 944 passes over the trigger paddle 845. Then, the output shaft of the electric actuator D continues to rotate counterclockwise, as shown in FIG. Fig.17 and Fig.18 As shown, the trigger pin head 944 is out of contact with the trigger paddle 845. At this time, under the reset action of the reset small coil spring 83, the trigger rod 84 is reset, and the trigger pin head 944 is now close to the paddle inclined surface 8451. The output shaft of the electric actuator D stops rotating and waits for the fire to be triggered. At this time, under the action of the electric actuator D, the output shaft of the electric actuator D always applies torque to the upper drive seat 91 of the unhooking trigger device 9, the transmission shaft locking unhooking assembly 8 is in a locked position, the blade 4 remains in an open state, and the damper 1 is in an open state.

[0052] It should be noted that, when the output shaft of the electric actuator D rotates counterclockwise, the linkage rod 6 rotates counterclockwise synchronously, the linkage bar 5 moves synchronously with the linkage rod 6, and the coil spring 71 of the force spring assembly 7 is continuously tightened to accumulate elastic potential energy.

[0053] When fuse E1 senses fire, electrical junction box E stops supplying power to electric actuator D. Figure 2 From the observation angle in the figure, the output shaft of the electric actuator D starts to rotate clockwise. Fig.18As shown, as shown in direction F, the trigger pin head 944 squeezes the paddle slope 8451. When the output shaft of the electric actuator D rotates a small angle S, due to the cooperation between the limiting crescent groove 842 and the limiting screw 85, the entire trigger rod 84 and the trigger paddle 845 cannot rotate reversely. The trigger pin head 944 can only be squeezed and triggered by the paddle slope 8451. The lower driving seat 92 of the unhooking trigger device 9 rotates rapidly under the left and right of the coil spring 71, and the transmission shaft locking unhooking assembly 8 trigger position is now in the trigger position. At the same time, the linkage pull rod 6 and the linkage cross bar 5 rotate, and all the blades 4 rotate synchronously and rapidly to close, and the wind gate 1 is in a closed state. Then, the output shaft of the electric actuator D continues to rotate clockwise until the cut-off position, and the trigger pin head 944 moves to the position as shown in FIG. Figure 3 It should be noted that the range of the rotation angle of the output shaft of the electric actuator D from the position where the trigger pin head 944 is triggered to the cut-off position is much larger than the small angle S.

[0054] When the fire is extinguished, the electrical junction box E supplies power to the electric actuator D again. Figure 2 From the observation angle in , the output shaft of the electric actuator D rotates counterclockwise again, so that the blade 4 opens and the damper 1 is in an open state.

[0055] The triggering process of the trigger pin 94 is further described below.

[0056] like Figures 19 to 22 As shown, the trigger pin 94 extends out under the action of the pin spring 93. Since the diameter of the limit column 943 is greater than the width of the guide arc groove 922, the limit column 943 is stuck at the end of the guide arc groove 922 and cannot move.

[0057] like Figure 23 to Figure 26 As shown, the trigger pin 94 begins to sink under the squeezing action of the paddle slope 8451, and the limit column 943 moves downward. At this time, the trigger pin head 944 can slide in the guide arc groove 922, thereby quickly driving the blade 4 to close.

[0058] It should be noted that when the electric actuator is powered on, it rotates counterclockwise to open the blade until it stops at the limit position, and keeps the blade open (the force spring assembly is in a tightened state). When a fire occurs, the fuse is activated to cut off the power supply of the electric actuator (or it is cut off manually if there is no fire). At this time, the electric actuator resets and starts to rotate clockwise. After rotating at a very small angle, it reaches the trigger position of the transmission shaft locking and unhooking device to trigger the transmission shaft locking and unhooking device to put it in an unhooked state. At this time, the unhooking trigger device is divided into two parts. The upper part still slowly resets clockwise with the rotation of the electric actuator, and the lower part is affected by the force spring assembly. The blade can be quickly closed clockwise through the transmission mechanism. When the upper part of the mechanism that rotates with the electric actuator reaches the closed position, the transmission shaft locking and unhooking device resets and locks again to restore the initial blade state.

[0059] Without limitation to this, any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. An electric damper capable of closing rapidly, characterized in that: The electric damper (1) capable of rapid closing comprises a frame (2), a plurality of reversible blades (4) are arranged in the frame (2), a control housing (3) is arranged on the top of the frame (2), an electric actuator (D) and an electrical junction box (E) are arranged on the top of the control housing (3), a long strip-shaped linkage bar (5) is arranged inside the control housing (3), a plurality of rotatable linkage rods (6) are arranged on the linkage bar (5), the linkage rods (6) are connected to corresponding blades (4), the linkage rods (6) comprise a long strip-shaped rod body (60), a ring-shaped rod gear ring (61) is arranged at the tail of the rod body (60), The control housing (3) is provided with a force-adding spring assembly (7), a transmission shaft locking and unhooking assembly (8) and an unhooking trigger device (9). The force-adding spring assembly (7) comprises a coil spring (71), a reel center shaft (72) and a reel end fixed shaft (73), wherein the reel center shaft (72) passes through the center of the coil spring (71), and an annular reel gear ring (721) is provided at the bottom of the reel center shaft (72), and the reel gear ring (721) cooperates with the corresponding rod gear ring (61) of the linkage pull rod (6), and the transmission shaft locking unhooking assembly (8) comprises a block-shaped placement block (81), and the placement A pair of fixing holes (813) are provided on the placement block (81), and a fixing screw (86) is respectively provided in each of the fixing holes (813). A rotating through hole (811) is provided at the center of the placement block (81), and an eccentrically arranged limiting hole (812) is provided on the side wall of the rotating through hole (811), and a limiting screw (85) is provided in the limiting hole (812). A circular fixing disc groove (8111) is provided at the tail of the rotating through hole (811), and the rotating through hole (811) is provided with a fixing screw (86) in the fixing screw (86). A rotatable rod-shaped trigger rod (84) is provided, the trigger rod (84) includes a cylindrical trigger column (841), a concave semicircular limiting crescent groove (842) is provided on the side wall of the trigger column (841), the limiting crescent groove (842) cooperates with the limiting screw (85), the head of the trigger column (841) is provided with a semi-cylindrical trigger protrusion (844), and a long strip-shaped trigger paddle (844) is provided on the side wall of the trigger protrusion (844). 45), a top side of the trigger paddle (845) is provided with an inclined paddle slope (8451), a tail of the trigger column (841) is provided with a coil spring chuck (843), a small return coil spring (83) is provided on the coil spring chuck (843), a disc-shaped fixed disk head (82) is provided in the fixed disk groove (8111), a disk hole (821) is provided in the center of the fixed disk head (82), and the coil spring chuck (843) passes through the disk hole (821), The unhooking trigger device (9) comprises an upper driving seat (91) and a lower driving seat (92), the electric actuator (D) drives the upper driving seat (91), the upper driving seat (91) is provided with a mounting pin hole (911) in the axial direction, a trigger pin (94) and a pin spring (93) are provided in the mounting pin hole (911), the trigger pin (94) comprises a cylindrical pin rod (941), the upper part of the pin rod (941) is provided with an annular limiting bushing (942), a cylindrical limiting platform column (943) and a cylindrical trigger pin head (944) in sequence, the The diameter of the trigger pin head (944) is smaller than that of the limit column (943), and the trigger pin head (944) cooperates with the trigger rod (84). The lower driving seat (92) is provided with an arc-shaped guide arc groove (922), and one end of the guide arc groove (922) is provided with a circular limit groove (923). The size of the limit groove (923) is adapted to the limit column (943), and the size of the guide arc groove (922) is adapted to the trigger pin head (944). The diameter of the limit column (943) is greater than the width of the guide arc groove (922).

2. The electric damper capable of rapid closing according to claim 1, characterized in that: The electrical junction box (E) is connected to an external fuse (E1).

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