Smoke exhaust valve actuator

Abstract

The utility model discloses a smoke exhaust valve actuator, and relates to the technical field of smoke exhaust valves. The present application includes; a tightening wheel is rotatably mounted in the box body, a storage groove is annularly formed in the peripheral side of the tightening wheel, one side of the box body communicates with a wire arranging barrel, a ratchet wheel is mounted on the peripheral side of the tightening wheel, a rotating rod is elastically and rotatably mounted on one side of the box body, and a pawl is constructed on one side of the rotating rod; and the electromagnet is installed on a box body, an execution rod used for being arranged at one end of the rotating rod in a clamped mode is rotationally installed on the box body, and a movable groove is formed in one side of the execution rod. The position of the driving plate is adjusted through the adjusting mechanism, so that the pressing wheel abuts against the pull rope, the tightness degree of the pull rope is adjusted, then the pull rope is prevented from being wound on the smoke exhaust valve when the pull rope rapidly moves when the smoke exhaust valve is opened, and the problem that the smoke exhaust valve cannot normally operate due to the pull rope is solved.

Description

Technical Field

[0001] The present application relates to the technical field of smoke exhaust valves, and in particular to a smoke exhaust valve actuator. Background Art

[0002] The smoke exhaust valve actuator is a device used to control the opening and closing of the smoke exhaust valve. Usually, the smoke exhaust valve actuator controls the smoke exhaust valve through a pull rope. The pull rope is connected between the smoke exhaust valve actuator and the smoke exhaust valve. When the pull rope is pulled, the smoke exhaust valve actuator will move accordingly, thereby changing the position of the smoke exhaust valve and controlling the ventilation effect of the smoke exhaust system.

[0003] However, there is a problem that when the smoke exhaust valve actuator is started, the pull rope may suddenly rebound. Due to the movement inertia of the smoke exhaust valve actuator, the pull rope may be entangled in the smoke exhaust valve, which may easily cause the smoke exhaust system to fail to operate normally. Utility Model Content

[0004] The purpose of this application is to solve the problems raised in the above background. This application provides a smoke exhaust valve actuator.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A smoke exhaust valve actuator, comprising:

[0007] A box body, a tightening wheel is rotatably mounted inside the box body, a storage groove is annularly provided on the outer peripheral side of the tightening wheel, a wire arranging drum is connected to one side of the box body, a ratchet is mounted on the outer peripheral side of the tightening wheel, a rotating rod is elastically rotatably mounted on one side of the box body, and a ratchet is configured on one side of the rotating rod;

[0008] The electromagnet is mounted on the box body, an actuating rod for clamping one end of the rotating rod is rotatably mounted on the box body, a movable groove is opened on one side of the actuating rod, and a shaft rod slidingly tangent to the movable groove is mounted on the movable end of the electromagnet;

[0009] A driving plate is slidably mounted on one side of the cable drum, and a holding wheel is mounted on the driving plate through a rotating rod for holding the pull rope;

[0010] The adjusting mechanism is installed on the wire drum and acts on the driving plate, and the driving plate is driven to approach or move away from the axis of the wire drum through the adjusting mechanism.

[0011] Furthermore, there are two drive plates and they are symmetrically distributed on the wire reel. The adjustment mechanism includes a drive ring slidably mounted on the wire reel. Two hinged rods are symmetrically hinged on the drive ring. The free ends of the two hinged rods are respectively hinged on the two drive plates. An adjustment member for driving the drive ring to move is installed on the wire reel.

[0012] Furthermore, the adjusting member comprises two convex plates constructed on the wire drum, an adjusting screw is rotatably mounted between the two convex plates, and the driving ring is threadedly sleeved on the adjusting screw.

[0013] Furthermore, a connecting rod is configured at one end of the adjusting screw, a large gear is rotatably mounted on the outer peripheral side of the wire drum, a small gear meshing with the large gear is mounted on the connecting rod, and a polygonal ring plate is configured on the end of the large gear away from the wire drum.

[0014] Furthermore, two protrusions are constructed on the outer peripheral side of the wire drum, a guide rod is constructed between the two protrusions, a convex strip is constructed on one side of the guide rod along its length direction, a connecting ring plate slidably mounted on the guide rod is constructed on the driving ring, a movable ring is slidably mounted on the guide rod, a locking member for limiting the movement of the movable ring is installed on the movable ring, and the movable ring is detachably mounted on the connecting ring plate.

[0015] Furthermore, the locking member comprises a threaded rod threadedly inserted on the movable ring, one end of the threaded rod is configured with a knob, and one end of the threaded rod abuts against one side of the convex strip.

[0016] Furthermore, a connecting plate is constructed on the movable ring, a sleeve is constructed on one side of the connecting plate, a plug-in rod is slidably inserted into one end of the sleeve, a limiting plate is constructed on one side of the plug-in rod located inside the sleeve and fits with the inner circumference of the sleeve, a clamping spring is installed between the limiting plate and one end inside the sleeve, and a plug-in hole for inserting the plug-in rod is opened on the connecting ring plate.

[0017] Furthermore, a return spring is installed in the box body, a toggle rod is constructed at one end of the return spring, a convex rod is constructed on one side of the toggle rod, a notch is opened on the convex rod, and a positioning bolt located in the notch is constructed on the actuator rod.

[0018] The beneficial effects of this application are as follows:

[0019] 1. The present application adjusts the position of the driving plate through an adjusting mechanism so that the holding wheel contacts the pull rope, thereby adjusting the tightness of the pull rope, thereby preventing the pull rope from being entangled in the smoke exhaust valve when the pull rope moves quickly when opening the smoke exhaust valve, thereby reducing the problem of the smoke exhaust valve not being able to operate normally due to the pull rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of this application;

[0021] Figure 2 It is an exploded view of some structures of this application;

[0022] Figure 3 This application Figure 2 Schematic diagram from another perspective;

[0023] Figure 4 It is a partial structural display diagram of this application;

[0024] Figure 5 This application Figure 4 Partial stereoscopic cutaway view;

[0025] Figure 6 This application Figure 4 Schematic diagram from another perspective;

[0026] Figure 7 This application Figure 6 Partial stereoscopic cutaway view;

[0027] Figure 8 This application Figure 6 Another partial three-dimensional cutaway view;

[0028] Reference numerals: 1, box body; 2, tightening wheel; 3, storage groove; 4, wire drum; 5, ratchet; 6, rotating rod; 7, electromagnet; 8, execution rod; 9, movable groove; 10, shaft rod; 11, driving plate; 12, driving ring; 13, adjustment mechanism; 14, hinge rod; 15, adjustment member; 16, convex plate; 17, adjustment screw; 18, connecting rod; 19, large gear; 20, small gear; 21, polygonal ring plate; 22. Bump; 23. Guide rod; 24. Raised strip; 25. Moving ring; 26. Locking piece; 27. Threaded rod; 28. Knob; 29. ​​Connecting plate; 30. Sleeve; 31. Connecting rod; 32. Limiting plate; 33. Pressing spring; 34. Reset spring; 35. Push rod; 36. Raised rod; 37. Notch; 38. Positioning bolt; 39. Ratchet; 40. Holding wheel; 41. Connecting ring plate; 42. Connecting hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0030] like Figure 1-Figure 8 As shown, a smoke exhaust valve actuator proposed in one embodiment of the present application includes:

[0031] A box body 1, a take-up wheel 2 is rotatably mounted inside the box body 1, a storage groove 3 is annularly provided on the outer peripheral side of the take-up wheel 2, a wire spool 4 is connected to one side of the box body 1, a ratchet 5 is installed on the outer peripheral side of the take-up wheel 2, a rotating rod 6 is elastically rotatably mounted on one side of the box body 1, a ratchet 39 is configured on one side of the rotating rod 6, specifically, a tension spring is installed on one side of the box body 1, a free end of the tension spring is installed on the rotating rod 6, and the ratchet 39 on the rotating rod 6 is abutted against the ratchet 5 by the elastic deformation characteristics of the tension spring;

[0032] The storage groove 3 is formed by slotting a square plastic part. The groove edge of the storage groove 3 can limit the steel wire. The steel wire rotates in the storage groove 3 following the tightening wheel 2, and is not easy to be detached or entangled with other parts, which has better safety; the electromagnet 7 is installed on the box body 1, and an actuator rod 8 for being clamped at one end of the rotating rod 6 is rotatably installed on the box body 1. A movable groove 9 is opened on one side of the actuator rod 8, and an axis rod 10 tangential to the sliding movable groove 9 is installed on the movable end of the electromagnet 7; that is, when in use, the pull rope is wound in the storage groove 3, and the other end of the pull rope is connected to the smoke exhaust valve, and a rod body is installed on one side of the rotating rod 6, and one end of the rod body passes through the box body 1 and is located outside. The staff member moves the rod 35 to make the rotating rod 6 away from the pawl 39, thereby separating the pawl 39 from the pawl 39, and the pull rope is wound in the storage groove 3 by rotating the tightening wheel 2, so that the pull rope is in a taut state. After that, the rotating rod 6 is moved to make the pawl 39 contact the ratchet 5, and finally the electromagnet 7 is started to move the shaft rod 10 on the electromagnet 7. Because the shaft rod 10 is tangential to the sliding groove 9, when the shaft rod 10 moves, relative to the actuator rod 8, the shaft rod 10 moves in the movable groove 9 and rotates along its own axis, thereby forcing the actuator rod 8 to rotate. A card plate is constructed on the free end of the actuator rod 8. When the actuator rod 8 rotates toward the rotating rod 6, the free end of the rotating rod 6 will hook the card plate. At this time, the pawl 39 on the rotating rod 6 is just engaged with the ratchet 5, and the tension spring is in a rope-pulling state. When the smoke exhaust valve needs to be opened, the electromagnet 7 is started to make the actuator rod 8 rotate, thereby forming a card plate that disengages from the rotating rod 6. At this time, due to the elastic deformation characteristics of the tension spring, it is reset so that the pawl 39 is disengaged from the ratchet 5. At this time, the taut pull rope will quickly pull the pull rope due to the opening of the smoke exhaust valve, so as to form a rapid rotation of the tightening wheel 2.

[0033] The driving plate 11 is slidably mounted on one side of the cable drum 4. The driving plate 11 is rotatably mounted with a holding wheel 40 through a rotating rod. The rotating rod is rotatably mounted on the driving plate 11. The holding wheel 40 is fixedly mounted on the rotating rod and is used to hold the pull rope. The free end of the pull rope passes through the cable drum 4 and is connected to the smoke exhaust valve.

[0034] The adjusting mechanism 13 is installed on the wire drum 4 and acts on the driving plate 11. The adjusting mechanism 13 is used to drive the driving plate 11 to approach or move away from the axis of the wire drum 4. That is to say, the position of the driving plate 11 is adjusted by the adjusting mechanism 13, so that the holding wheel 40 is in contact with the pull rope. The position of the driving plate 11 is controlled to adjust the friction coefficient between the holding wheel 40 and the pull rope. The tighter the holding wheel 40 is in contact with the pull rope, the tighter the contact force between the rotating rod and the driving plate 11 is. This achieves the adjustment of the tightness of the pull rope, thereby preventing the pull rope from being entangled in the smoke exhaust valve when the pull rope moves quickly when the smoke exhaust valve is opened, thereby reducing the problem of the smoke exhaust valve not being able to operate normally due to the pull rope.

[0035] like Figure 1-Figure 6 As shown, in some embodiments, the number of the driving plates 11 is two and they are symmetrically distributed on the wire reel 4, the adjusting mechanism 13 includes a driving ring 12 slidably mounted on the wire reel 4, the driving ring 12 is symmetrically hinged with two hinged rods 14, the free ends of the two hinged rods 14 are respectively hinged on the two driving plates 11, and the wire reel 4 is provided with an adjusting member 15 for driving the driving ring 12 to move, that is, after the driving ring 12 is driven to move by the adjusting member 15, because the hinged rod 14 is hinged on the driving ring 12 and the other end is hinged on the driving plate 11, the driving ring 12 will drive the two driving plates 11 to move closer to or away from each other through the hinged rod 14 when moving, so that the two holding wheels 40 are in contact with the pull rope at the same time, the pull rope is subjected to more uniform force, and the tightness of the pull rope can be better controlled.

[0036] like Figure 1-Figure 5 As shown, in some embodiments, the adjusting member 15 includes two convex plates 16 constructed on the wire reel 4, and an adjusting screw 17 is rotatably installed between the two convex plates 16. The drive ring 12 is threadedly sleeved on the adjusting screw 17. That is to say, by rotating the adjusting screw 17, the rotation of the adjusting screw 17 indirectly drives the drive ring 12 threadedly matched with the adjusting screw 17 to move. Because the threaded matching of the adjusting screw 17 and the drive ring 12 is self-locking, the moved drive ring 12 is not easy to move by itself due to external factors, and has a good limiting effect.

[0037] like Figure 1-Figure 6As shown, in some embodiments, a connecting rod 18 is constructed at one end of the adjusting screw 17, a large gear 19 is rotatably mounted on the outer peripheral side of the wire drum 4, a small gear 20 meshing with the large gear 19 is mounted on the connecting rod 18, and a polygonal ring plate 21 is constructed on the end of the large gear 19 away from the wire drum 4. The design of the polygonal ring plate 21 makes it easier for the staff to rotate the large gear 19. When the large gear 19 rotates, because the large gear 19 meshes with the small gear 20, the rotation of the large gear 19 will drive the small gear 20 to rotate. Because the small gear 20 is connected to the connecting rod 18, and the connecting rod 18 is constructed on the adjusting screw 17, the rotation of the large gear 19 indirectly drives the adjusting screw 17 to rotate.

[0038] like Figure 3-Figure 6 As shown, in some embodiments, the outer peripheral side of the wire drum 4 is constructed with two protrusions 22, a guide rod 23 is constructed between the two protrusions 22, and a convex strip 24 is constructed on one side of the guide rod 23 along its length direction. The driving ring 12 is constructed with a connecting ring plate 41 slidably sleeved on the guide rod 23, and a movable ring 25 is slidably sleeved on the guide rod 23. A locking piece 26 for limiting the movement of the movable ring 25 is installed on the movable ring 25, and the movable ring 25 is detachably installed on the connecting ring plate 41. When the internal structure of the box body 1 is damaged, in order to facilitate the next time to quickly adjust the friction coefficient between the pull rope and the holding wheel 40 to the appropriate force, the movable ring 25 can be removed from the connecting ring plate 41 at this time, and then the position of the movable ring 25 is locked by the locking piece 26. When the driving plate 11 needs to be moved to the appropriate position next time, the driving ring 12 only needs to be moved so that the connecting ring plate 41 fits on the movable ring 25 to quickly determine the position of the driving plate 11, which is more convenient to use.

[0039] like Figure 3-Figure 6 As shown, in some embodiments, the locking member 26 includes a threaded rod 27 threadedly inserted on the movable ring 25, and a knob 28 is configured at one end of the threaded rod 27. One end of the threaded rod 27 abuts against one side of the convex strip 24. When the position of the movable ring 25 needs to be fixed, the knob 28 is tightened and one end of the threaded rod 27 abuts against the convex strip 24, thereby indirectly fixing the position of the movable ring 25 by increasing the resistance force between the convex strip 24 and the threaded rod 27.

[0040] like Figure 3-Figure 8As shown, in some embodiments, the movable ring 25 is constructed with a connecting plate 29, and a sleeve 30 is constructed on one side of the connecting plate 29. A plug-in rod 31 is slidably inserted at one end of the sleeve 30, and a limiting plate 32 that fits the inner circumference of the sleeve 30 is constructed on one side of the plug-in rod 31 located inside the sleeve 30. A tightening spring 33 is installed between the limiting plate 32 and one end of the sleeve 30. A plug-in hole 42 for the plug-in rod 31 is opened on the connecting ring plate 41. When the movable ring 25 needs to be removed from the driving ring 12, it is only necessary to pull the plug-in rod 31 to separate the plug-in rod 31 from the plug-in hole 42. At this time, the driving ring 12 and the movable ring 25 can be quickly separated. When the driving ring 12 and the movable ring 25 need to be connected, it is only necessary to loosen the plug-in rod 31 so that the plug-in rod 31 is inserted into the plug-in hole 42, which is easy to operate.

[0041] like Figure 3-Figure 8 As shown, in some embodiments, a return spring 34 is installed in the box body 1, and a toggle rod 35 is constructed at one end of the return spring 34, and a convex rod 36 is constructed on one side of the toggle rod 35, and a slot 37 is opened on the convex rod 36, and a positioning bolt 38 located in the slot 37 is constructed on the actuator rod 8. When the solenoid valve is damaged and the actuator rod 8 cannot be moved normally, the toggle rod 35 can be pulled at this time, and the movement of the toggle rod 35 causes the convex rod 36 to move, and the convex rod 36 drives the slot 37 to move during the movement. At this time, because the positioning bolt 38 is located in the slot 37 and slides tangent to the positioning bolt 38 in the slot 37, the rotation of the toggle rod 35 through the positioning bolt 38 will force the actuator rod 8 to move, thereby preventing the solenoid valve from being damaged and opening the smoke exhaust valve. It can be started by toggling the actuator rod 8.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smoke exhaust valve actuator, characterized in that: include; A box body (1), a tensioning wheel (2) is rotatably mounted inside the box body (1), a storage groove (3) is provided in an annular manner on the outer peripheral side of the tensioning wheel (2), one side of the box body (1) is connected to a wire arranging drum (4), a ratchet wheel (5) is installed on the outer peripheral side of the tensioning wheel (2), a rotating rod (6) is elastically rotatably mounted on one side of the box body (1), and a ratchet pawl (39) is constructed on one side of the rotating rod (6); An electromagnet (7) is mounted on the box body (1); an actuating rod (8) is rotatably mounted on the box body (1) and is used to be clamped on one end of the rotating rod (6); a movable groove (9) is formed on one side of the actuating rod (8); and a shaft (10) is mounted on the movable end of the electromagnet (7) and is slidably tangential to the movable groove (9); A driving plate (11) is slidably mounted on one side of the cable drum (4); the driving plate (11) is rotatably mounted with a holding wheel (40) through a rotating rod, and is used to hold the pull rope; An adjustment mechanism (13) is mounted on the wire spool (4) and acts on the drive plate (11), and the drive plate (11) is driven to move closer to or farther from the axis of the wire spool (4) through the adjustment mechanism (13).

2. A smoke exhaust valve actuator according to claim 1, characterized in that: The number of the drive plates (11) is two and they are symmetrically distributed on the wire traversing drum (4); the adjustment mechanism (13) comprises a drive ring (12) slidably mounted on the wire traversing drum (4); two hinged rods (14) are symmetrically hinged on the drive ring (12); the free ends of the two hinged rods (14) are respectively hinged on the two drive plates (11); and an adjustment member (15) for driving the drive ring (12) to move is installed on the wire traversing drum (4).

3. A smoke exhaust valve actuator according to claim 2, characterized in that: The adjusting member (15) comprises two convex plates (16) constructed on the wire winding drum (4), an adjusting screw (17) is rotatably mounted between the two convex plates (16), and the driving ring (12) is threadedly sleeved on the adjusting screw (17).

4. A smoke exhaust valve actuator according to claim 3, characterized in that: A connecting rod (18) is configured at one end of the adjusting screw rod (17); a large gear (19) is rotatably mounted on the outer peripheral side of the wire arranging drum (4); a small gear (20) meshing with the large gear (19) is mounted on the connecting rod (18); and a polygonal ring plate (21) is configured on the end of the large gear (19) away from the wire arranging drum (4).

5. The smoke exhaust valve actuator according to claim 2, characterized in that: The outer peripheral side of the cable drum (4) is configured with two protrusions (22), a guide rod (23) is configured between the two protrusions (22), one side of the guide rod (23) is configured with a protrusion (24) along its length direction, the drive ring (12) is configured with a connecting ring plate (41) slidably mounted on the guide rod (23), a moving ring (25) slidably mounted on the guide rod (23), a locking member (26) for limiting the movement of the moving ring (25) is mounted on the moving ring (25), and the moving ring (25) is detachably mounted on the connecting ring plate (41).

6. A smoke exhaust valve actuator according to claim 5, characterized in that: The locking member (26) comprises a threaded rod (27) threadedly inserted on the movable ring (25), one end of the threaded rod (27) being provided with a knob (28), and one end of the threaded rod (27) abutting against one side of the convex strip (24).

7. The smoke exhaust valve actuator according to claim 5, characterized in that: The movable ring (25) is provided with a connecting plate (29), one side of the connecting plate (29) is provided with a sleeve (30), one end of the sleeve (30) is provided with a plug-in rod (31) for sliding insertion, one side of the plug-in rod (31) located inside the sleeve (30) is provided with a limit plate (32) that is in contact with the inner circumference of the sleeve (30), a clamping spring (33) is installed between the limit plate (32) and one end inside the sleeve (30), and a plug-in hole (42) for plugging the plug-in rod (31) is provided on the connecting ring plate (41).

8. The smoke exhaust valve actuator according to claim 1, characterized in that: A return spring (34) is installed in the box body (1), one end of the return spring (34) is configured with a toggle rod (35), one side of the toggle rod (35) is configured with a protruding rod (36), a notch (37) is formed on the protruding rod (36), and a positioning bolt (38) is formed on the actuating rod (8) and is located in the notch (37).

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