A remote control device for fire damper

Abstract

A remote control device for a fire damper. Relates to the field of fire damper control equipment. A remote control device for a fire damper is proposed, which has a sophisticated structure, good stability, and is easy to operate, and can be conveniently operated remotely to avoid potential safety hazards. The fire damper includes a box body and a plurality of blades, wherein the blades are hinged in the box body through a rotating shaft, and the blades are linked to each other, wherein one end of one of the rotating shafts extends out of the box body, and a pair of convex wings for fixedly connecting to the wall are fixedly connected to the outer wall of the box body; the present invention realizes remote control of the fire damper as a whole, and has the advantages of sophisticated structure, good stability, easy operation, and long service life as a whole.

Description

Technical Field

[0001] The invention relates to the field of fire damper control equipment. Background Art

[0002] Fire dampers are safety air dampers that are kept in a closed or open state for a long time. Several blades of the fire damper usually move simultaneously through a linkage assembly. When temporary operation is required, it is usually operated manually by an operator. However, since most fire dampers are installed at high places such as roofs and wall tops, it is extremely inconvenient for operators to temporarily operate the fire dampers, which seriously affects the normal use of the fire damper and brings high safety hazards due to people climbing up and down during temporary operation. Summary of the invention

[0003] In view of the above problems, the present invention proposes a remote control device for a fire damper which has a sophisticated structure, good stability and is easy to operate, and can be conveniently operated remotely to avoid safety hazards.

[0004] The technical solution of the present invention is as follows: the fire damper comprises a box body and a plurality of blades, the plurality of blades are hinged in the box body through a rotating shaft, and the plurality of blades are linked to each other, one end of one of the rotating shafts passes out of the box body, and a pair of convex wings for fixedly connecting to the wall are fixedly connected to the outer wall of the box body;

[0005] The control device comprises a valve drive assembly, a valve opening cable and a valve closing cable. The valve drive assembly is connected to the outer wall of the box body and is located between a pair of convex wings. The valve drive assembly comprises a drive block, a fixed block, a tension spring, a drive rope, a drive disk and a locking assembly. The middle part of the drive block is fixedly connected to the end of the rotating shaft passing through the outside of the box body, and the two sides of the drive block are respectively provided with a valve opening drive hole and a valve closing drive hole;

[0006] The fixing block is fixedly connected to the box body and is located on one side of the driving block, and the two ends of the tension spring are respectively fixedly connected to the valve closing driving hole and the fixing block;

[0007] The center of the driving disk is hinged on the outer wall of the box body, one end of the driving rope is fixedly connected to the valve opening driving hole, and the other end is fixedly connected to the driving disk;

[0008] A radial groove is provided on the end surface of the driving disk, and the locking assembly includes a fixed sleeve, a compression spring and a locking block. The fixed sleeve is fixedly connected to one of the convex wings and is arranged on one side of the driving disk along the radial direction of the driving disk. The locking block is slidably connected in the fixed sleeve and is adapted to the radial groove. The compression spring is arranged in the fixed sleeve and abuts between the convex wing and the locking block, so that the locking block maintains a tendency to move toward the center of the driving disk.

[0009] The valve opening cable passes through one of the convex wings, and one end of the valve opening cable is fixedly connected to the driving disc; the valve closing cable passes through one of the convex wings and extends into the fixed sleeve, and one end of the valve closing cable is fixedly connected to the locking block.

[0010] The remote control device further comprises a remote control assembly for controlling the valve opening cable and the valve closing cable, wherein the remote control assembly comprises a control box, a valve opening motor and a valve closing motor;

[0011] The valve opening motor and the valve closing motor are both fixedly connected in the control box, one end of the valve opening cable is fixedly connected to the output shaft of the valve opening motor, and is wound with several turns on the output shaft of the valve opening motor; one end of the valve closing cable is fixedly connected to the output shaft of the valve closing motor, and is wound with several turns on the output shaft of the valve closing motor.

[0012] The remote control device further comprises a remote control assembly for controlling a valve opening cable and a valve closing cable, wherein the remote control assembly comprises a fixing seat, a valve opening hand wheel and a valve closing hand wheel;

[0013] The valve opening handwheel and the valve closing handwheel are both fixedly connected to a fixed seat, one end of the valve opening cable is fixedly connected to the surface of the valve opening handwheel, and one end of the valve closing cable is fixedly connected to the surface of the valve closing handwheel.

[0014] The valve opening cable and the valve closing cable are both covered with a cable skin, and the convex wing is also fixedly connected to a pair of skin joints which are respectively sleeved on the valve opening cable and the valve closing cable, and the skin joints are fixedly connected to the cable skin.

[0015] No matter whether it is a normally open fire damper or a normally closed fire damper, the present invention only needs to pull the valve opening cable when the valve needs to be opened, and pull the valve closing cable when the valve needs to be closed, thereby realizing convenient, reliable and efficient remote control. At the same time, when the fire damper does not need to be operated, both the valve opening cable and the valve closing cable can be kept in a relaxed state, and there is no need to keep them tensioned all the time, so that the two have a higher actual service life and do not occupy too much indoor space. The present invention realizes remote control of the fire damper as a whole, and has the advantages of sophisticated structure, good stability, convenient operation and long service life as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the structural diagram of this case.

[0017] Figure 2 yes Figure 1 The left view in

[0018] Figure 3 yes Figure 1 The AA section view,

[0019] Figure 4 It is a schematic diagram of an optimized implementation method of this case;

[0020] In the figure, 11 is a box body, 12 is a blade, 13 is a rotating shaft, and 14 is a convex wing;

[0021] 2 is a valve drive assembly, 21 is a drive block, 22 is a fixed block, 23 is a tension spring, 24 is a drive rope, 25 is a drive disk, 250 is a radial slot, 261 is a fixed sleeve, 262 is a compression spring, and 263 is a locking block;

[0022] 3 is the valve opening cable, 4 is the valve closing cable;

[0023] 5 is a remote control assembly, 51 is a fixed seat, 52 is a valve opening hand wheel, and 53 is a valve closing hand wheel. DETAILED DESCRIPTION

[0024] The present invention Figure 1-4 As shown, the fire damper comprises a box body 11 and a plurality of blades 12, wherein the plurality of blades 12 are hinged in the box body 11 through a rotating shaft 13 and the plurality of blades 12 are linked to each other, wherein one end of one of the rotating shafts 13 passes out of the box body 11, and a pair of convex wings 14 for fixedly connecting to a wall are fixedly connected to the outer wall of the box body 11;

[0025] The control device includes a valve drive assembly 2, a valve opening cable 3 and a valve closing cable 4. The valve drive assembly 2 is connected to the outer wall of the box body 11 and is located between a pair of convex wings 14. The valve drive assembly 2 includes a drive block 21, a fixed block 22, a tension spring 23, a drive rope 24, a drive disk 25 and a locking assembly. The middle part of the drive block 21 is fixedly connected to the end of the rotating shaft 13 passing through the outside of the box body 11, and the two sides of the drive block 21 are respectively provided with a valve opening drive hole and a valve closing drive hole;

[0026] The fixing block 22 is fixedly connected to the box body 11 and is located on one side of the driving block 21. The two ends of the tension spring 23 are respectively fixedly connected to the valve closing driving hole and the fixing block 22, so that the plurality of blades maintain the movement tendency of the valve closing through the tension spring;

[0027] The center of the driving disk 25 is hinged on the outer wall of the box body 11, one end of the driving rope 24 is fixedly connected to the valve opening driving hole, and the other end is fixedly connected to the driving disk 25, so that when the driving disk rotates and the driving rope pulls the driving block, the rotating shaft and several blades can rotate simultaneously to open the valve;

[0028] A radial groove 250 is provided on the end surface of the driving disk 25, and the locking assembly includes a fixed sleeve 261, a compression spring 262 and a locking block 263. The fixed sleeve 261 is fixedly connected to one of the convex wings 14 and is arranged on one side of the driving disk 25 along the radial direction of the driving disk 25. The locking block 263 is slidably connected in the fixed sleeve 261 and is adapted to the radial groove 250. The compression spring 262 is arranged in the fixed sleeve 261 and abuts between the convex wing 14 and the locking block 263, so that the locking block 263 maintains a tendency to move toward the center of the driving disk 25.

[0029] The valve opening cable 3 is passed through one of the convex wings 14, and one end of the cable is fixedly connected to the driving disk 25, so that the driving disk is driven to rotate through the valve opening cable, thereby driving the driving block to open the fire damper; the valve closing cable 4 is passed through one of the convex wings 15 and extends into the fixed sleeve 261, and one end of the valve closing cable 4 is fixedly connected to the locking block 263. In actual use (taking the normally closed state as an example), the locking block only rests on the surface of the driving disk under normal conditions and does not extend into the radial slot, so that the driving disk can rotate freely and the driving rope is in a relaxed state. At this time, the tension spring pulls the driving block under the influence of its own restoring force, so that the fire damper remains in the closed valve state.

[0030] When the operator needs to temporarily open the fire damper, he can pull the valve opening cable at the far end to rotate the drive disk, thereby pulling the drive block through the drive rope to rotate the shaft and several blades at the same time to open the valve. When the radial slot rotates to the side where the locking block is located and the locking block extends into the radial slot, the fire damper is in a fully open state, and the temporary opening of the fire damper is completed.

[0031] When the temporary opening is over and the normally closed state needs to be restored, the valve closing cable can be pulled at the far end to make the locking block leave the radial clamping block, and the drive disk can resume the freely rotatable state. Thereafter, the tension of the tension spring will drive the drive block to flip rapidly, thereby driving the rotating shaft and several blades to rotate at the same time, quickly closing the valve, and after the valve is closed, the tension spring is used to enable several blades to maintain a good sealing effect.

[0032] In this way, no matter it is a normally open fire damper or a normally closed fire damper, it is only necessary to pull the valve opening cable when the valve needs to be opened, and to pull the valve closing cable when the valve needs to be closed, thereby realizing convenient, reliable and efficient remote control. At the same time, when the fire damper does not need to be moved, both the valve opening cable and the valve closing cable can remain in a relaxed state, and there is no need to keep them tensioned all the time, so that the two have a higher actual service life and do not occupy too much indoor space. The present invention realizes remote control of the fire damper as a whole, and has the advantages of sophisticated structure, good stability, easy operation and long service life as a whole.

[0033] The remote control component is representatively described below through two embodiments, each with its own advantages:

[0034] In the first embodiment, the remote control device further comprises a remote control component 5 for controlling the valve opening cable and the valve closing cable, wherein the remote control component comprises a control box, a valve opening motor and a valve closing motor;

[0035] The valve opening motor and the valve closing motor are both fixedly connected in the control box, one end of the valve opening cable is fixedly connected to the output shaft of the valve opening motor, and a number of turns are wound around the output shaft of the valve opening motor; one end of the valve closing cable is fixedly connected to the output shaft of the valve closing motor, and a number of turns are wound around the output shaft of the valve closing motor. Therefore, the valve opening cable can be remotely and efficiently controlled by the valve opening motor, and the valve closing cable can be remotely and efficiently controlled by the valve closing motor, which has the advantages of high action efficiency and low labor intensity.

[0036] In the second embodiment, the remote control device further comprises a remote control assembly 5 for controlling the valve opening cable and the valve closing cable, wherein the remote control assembly 5 comprises a fixing seat 51, a valve opening hand wheel 52 and a valve closing hand wheel 53;

[0037] The valve opening hand wheel 52 and the valve closing hand wheel 53 are both fixedly connected to the fixing seat 51, one end of the valve opening cable 3 is fixedly connected to the surface of the valve opening hand wheel 52, and one end of the valve closing cable 4 is fixedly connected to the surface of the valve closing hand wheel 53. Thus, the operator can tighten or release the valve opening cable through the valve opening hand wheel at the remote end, and tighten or release the valve closing cable through the valve closing hand wheel, which has the advantages of convenient operation and no energy consumption.

[0038] The valve opening cable and the valve closing cable are both covered with a cable skin, and the convex wing is also fixedly connected with a pair of skin joints respectively sleeved with the valve opening cable and the valve closing cable, and the skin joints are fixedly connected to the cable skin. Thus, while not affecting the convenient and efficient operation of the valve opening cable and the valve closing cable, the valve opening cable and the valve closing cable are further protected, so that the two can maintain better use stability and longer actual service life.

Claims

1. A remote control device for a fire damper, the fire damper comprising a box and a plurality of blades, the plurality of blades being hinged in the box through a rotating shaft and the plurality of blades being linked, one end of one of the rotating shafts passing out of the box, and a pair of convex wings for fixing to a wall are fixedly connected to the outer wall of the box; characterized in that: The control device comprises a valve drive assembly, a valve opening cable and a valve closing cable. The valve drive assembly is connected to the outer wall of the box body and is located between a pair of convex wings. The valve drive assembly comprises a drive block, a fixed block, a tension spring, a drive rope, a drive disk and a locking assembly. The middle part of the drive block is fixedly connected to the end of the rotating shaft passing through the outside of the box body, and the two sides of the drive block are respectively provided with a valve opening drive hole and a valve closing drive hole; The fixing block is fixedly connected to the box body and is located on one side of the driving block, and the two ends of the tension spring are respectively fixedly connected to the valve closing driving hole and the fixing block; The center of the driving disk is hinged on the outer wall of the box body, one end of the driving rope is fixedly connected to the valve opening driving hole, and the other end is fixedly connected to the driving disk; A radial groove is provided on the end surface of the driving disk, and the locking assembly includes a fixed sleeve, a compression spring and a locking block. The fixed sleeve is fixedly connected to one of the convex wings and is arranged on one side of the driving disk along the radial direction of the driving disk. The locking block is slidably connected in the fixed sleeve and is adapted to the radial groove. The compression spring is arranged in the fixed sleeve and abuts between the convex wing and the locking block, so that the locking block maintains a tendency to move toward the center of the driving disk. The valve opening cable passes through one of the convex wings, and one end of the valve opening cable is fixedly connected to the driving disc; the valve closing cable passes through one of the convex wings and extends into the fixed sleeve, and one end of the valve closing cable is fixedly connected to the locking block.

2. A remote control device for a fire damper according to claim 1, characterized in that: The remote control device further comprises a remote control assembly for controlling the valve opening cable and the valve closing cable, wherein the remote control assembly comprises a control box, a valve opening motor and a valve closing motor; The valve opening motor and the valve closing motor are both fixedly connected in the control box, one end of the valve opening cable is fixedly connected to the output shaft of the valve opening motor, and is wound with several turns on the output shaft of the valve opening motor; one end of the valve closing cable is fixedly connected to the output shaft of the valve closing motor, and is wound with several turns on the output shaft of the valve closing motor.

3. A remote control device for a fire damper according to claim 1, characterized in that: The remote control device further comprises a remote control assembly for controlling a valve opening cable and a valve closing cable, wherein the remote control assembly comprises a fixing seat, a valve opening hand wheel and a valve closing hand wheel; The valve opening handwheel and the valve closing handwheel are both fixedly connected to a fixed seat, one end of the valve opening cable is fixedly connected to the surface of the valve opening handwheel, and one end of the valve closing cable is fixedly connected to the surface of the valve closing handwheel.

4. A remote control device for a fire damper according to claim 1, characterized in that: The valve opening cable and the valve closing cable are both covered with a cable skin, and the convex wing is also fixedly connected to a pair of skin joints which are respectively sleeved on the valve opening cable and the valve closing cable, and the skin joints are fixedly connected to the cable skin.

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