Portable electric reset device for smoke and fire damper

Abstract

The application discloses a portable smoke-proof and fire-proof valve electric reset device, which comprises an insulating rod, a motor, a control mechanism and a reset mechanism, the insulating rod is telescopic, the motor is installed on the insulating rod, the control mechanism and the reset mechanism are respectively installed on two ends of the insulating rod, and the control mechanism is used for controlling start and stop of the motor; the reset mechanism comprises a limiting piece and a connecting piece, one end of the connecting piece is connected with an output shaft of the motor, the other end of the connecting piece is provided with a clamping groove which is used for abutting with a reset execution mechanism of a smoke-proof and fire-proof valve, one end of the limiting piece is connected with the insulating rod, the other end of the limiting piece is provided with at least two limiting blocks which are arranged at intervals, each limiting block can contact or abut against an outer side of the smoke-proof and fire-proof valve, and the motor is used for driving the connecting piece to rotate. The smoke-proof and fire-proof valve is reset by driving the connecting piece to rotate, so that the reset effect can be achieved by replacing manual reset, operation risk of maintenance personnel is reduced, and the problem of reset difficulty of the smoke-proof and fire-proof valve caused by insufficient maintenance space of the smoke-proof and fire-proof valve is solved.

Description

Technical Field

[0001] This invention belongs to the field of smoke and fire damper reset technology, specifically relating to a portable electric reset device for smoke and fire dampers. Background Technology

[0002] Currently, the limited space in subway station equipment areas may result in multiple smoke and fire damper actuators being installed against walls or surrounded by other pipelines. This insufficient space hinders maintenance of these dampers, making it difficult for personnel to inspect and reset them, severely impacting system reliability. Furthermore, since subway station ventilation ducts are primarily installed above the ceiling, manually resetting smoke and fire dampers requires working at height. To overcome the limited space, maintenance personnel must climb and navigate around pipelines, increasing safety risks.

[0003] There are currently two main methods for resetting smoke and fire dampers. One method involves maintenance personnel climbing a ladder and manually holding the reset handle. However, this poses a safety risk, requires significant operating space, and is inconvenient for situations where the installation location is above a hoisting hole or where there are high-altitude work hazards. The other method involves connecting the reset mechanism to a steel wire rope, installing the manual reset device in a groove cut into the wall, and using a special tool to rotate the device. The internal transmission mechanism uses the tension of the steel wire rope to achieve manual reset. However, installing the manual reset device requires pre-embedded conduit in grooves, and the steel wire rope, a consumable component, is prone to aging and breakage in practice, making replacement time-consuming and labor-intensive. Furthermore, using a steel wire rope for reset places high demands on the installation of the reset mechanism, as installation angle deviations can easily damage the mechanism due to the steel wire rope. This method is time-consuming, labor-intensive, and requires a large operating space.

[0004] In addition, neither of the above two methods for resetting smoke and fire dampers can address the problem of insufficient maintenance space. Therefore, there is an urgent need to find a simple and efficient reset device to solve the maintenance problem of smoke and fire damper equipment with insufficient maintenance space and improve equipment reliability.

[0005] Therefore, a new technology is needed to solve the problems of inconvenient reset operation of smoke and fire dampers and insufficient maintenance space in existing technologies. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, this invention provides a portable electric reset device for smoke and fire dampers, which can be applied in situations where maintenance space is insufficient. It features a simple structure, ease of operation, high reset efficiency, and safety and reliability.

[0007] The present invention adopts the following technical solution:

[0008] A portable smoke and fire damper electric reset device includes an insulating rod, a motor, a control mechanism, and a reset mechanism. The insulating rod is telescopic, the motor is mounted on the insulating rod, and the control mechanism and the reset mechanism are respectively mounted at both ends of the insulating rod. The control mechanism is used to control the start and stop of the motor.

[0009] The reset mechanism includes a limiting member and a connecting member. One end of the connecting member is connected to the output shaft of the motor, and the other end is provided with a slot for docking with the reset actuator of the smoke and fire damper. One end of the limiting member is connected to the insulating rod, and the other end is provided with a limiting part. The limiting part can contact or abut against the outside of the smoke and fire damper. The motor is used to drive the connecting member to rotate.

[0010] As a further improvement to the technical solution of the present invention, the control mechanism includes a controller, a control button, and a power interface. The power interface is disposed on the end face of the insulating rod away from the reset mechanism and is electrically connected to the motor. The control button can protrude from the outer surface of the insulating rod and is electrically connected to the controller. The controller is installed inside the insulating rod and can control the start and stop of the motor.

[0011] As a further improvement to the technical solution of the present invention, a fixed bracket is also included, which is installed at one end of the insulating rod and used to install the motor.

[0012] As a further improvement to the technical solution of the present invention, the limiting member includes a first limiting block, a connecting block and a second limiting block connected in a U-shape in sequence, the first limiting block and the second limiting block forming the limiting part, and the connecting block being detachably fixedly connected to the fixed bracket.

[0013] As a further improvement to the technical solution of the present invention, the end of the connecting member away from the slot is provided with a groove, and the output shaft of the motor is inserted into the groove and detachably fixedly connected to the connecting member.

[0014] As a further improvement to the technical solution of the present invention, the fixed bracket includes a first mounting plate and a second mounting plate connected to each other in an L-shape. The first mounting plate is detachably fixedly connected to the end face of the insulating rod, and the motor is mounted on the second mounting plate.

[0015] As a further improvement to the technical solution of the present invention, a rib is provided between the first mounting plate and the second mounting plate, and the rib is used to fix the first mounting plate and the second mounting plate together.

[0016] As a further improvement to the technical solution of the present invention, the output shaft of the motor is perpendicular to the axis of the insulating rod.

[0017] As a further improvement to the technical solution of the present invention, the insulating rod includes a first rod body and a second rod body. Both ends of the first rod body are equipped with connectors. The power interface is located on one end face of the second rod body. The connector is installed on the end of the second rod body away from the power interface. The fixing bracket is detachably fixed to one end of the first rod body. The other end of the first rod body is detachably fixed to the second rod body through the two connectors.

[0018] As a further improvement to the technical solution of the present invention, the insulating rod further includes at least one third rod located between the first rod body and the second rod body. Each of the third rod bodies is connected in sequence to form an extension body. Each of the third rod bodies has a connector installed at both ends. The connectors located at both ends of the extension body are detachably and fixedly connected to the connectors at the ends of the first rod body and the second rod body, respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The portable electric reset device for smoke and fire dampers has a simple structure, making it easy to carry and use. Through the transmission of the motor output shaft, the connecting parts can drive the actuator handle fixing part of the smoke and fire damper to rotate counterclockwise by 90° to reset. It can replace manual reset and achieve a fast reset effect. The reset efficiency of the smoke and fire damper is high, while reducing the operation risk for maintenance personnel. It is safe and reliable, and solves the problem of difficulty in resetting the actuator handle of the smoke and fire damper caused by insufficient maintenance space. Attached Figure Description

[0021] The technology of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 This is a schematic diagram of the overall structure of the portable smoke and fire damper electric reset device of the present invention when it is equipped with a third rod.

[0023] Figure 2 This is a schematic diagram of the reset mechanism of the present invention.

[0024] Figure label:

[0025] 1-Insulating rod; 11-Handheld part; 12-Connector; 13-First rod body; 14-Second rod body; 15-Third rod body;

[0026] 2-Motor;

[0027] 3-Control mechanism; 31-Control button; 32-Power interface;

[0028] 4-Fixed bracket;

[0029] 5-Limiting component; 51-First limiting block; 52-Connecting block; 53-Second limiting block;

[0030] 6-Connector; 61-Slot; 62-First protrusion; 63-Second protrusion; 64-Third protrusion;

[0031] 7-Phone stand;

[0032] 8-Camera;

[0033] 9. External power supply. Detailed Implementation

[0034] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the accompanying drawings indicate the same or similar parts.

[0035] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "up," "down," "left," and "right" used in this invention are only relative to the relative positional relationships of the various components of the invention in the accompanying drawings.

[0036] Reference Figures 1 to 2 A portable electric reset device for smoke and fire dampers includes an insulating rod 1, a motor 2, a control mechanism 3, and a reset mechanism. The motor 2 is preferably a reversible motor. The insulating rod 1 is made of insulating material, and its outer surface has an insulating effect to prevent electric shock to personnel handling it, ensuring safety and reliability. The insulating rod 1 is telescopic, allowing adjustment of its length to accommodate various smoke and fire damper installation heights. The motor 2 is mounted on the insulating rod 1. The control mechanism 3 and the reset mechanism are respectively mounted at both ends of the insulating rod 1. The control mechanism 3 controls the start and stop of the motor 2. The motor 2 is a 24V DC geared motor, and the insulating rod 1 provides insulation.

[0037] The reset mechanism includes a limiting member 5 and a connecting member 6. One end of the connecting member 6 is connected to the output shaft of the motor 2, and the other end is provided with a slot 61 for docking with the reset actuator of the smoke and fire damper. One end of the limiting member 5 is connected to the insulating rod 1, and the other end is provided with a limiting part. When the reset actuator of the smoke and fire damper is engaged in the slot 61, the limiting part can contact or abut against the outside of the smoke and fire damper. The motor 2 is used to drive the connecting member 6 to rotate. The slot 61 faces away from the insulating rod 1, and the slot 61 is located at the front end of the connecting member 6 to easily engage the handle of the smoke and fire damper, ensuring that the connecting member 6 will not detach from the handle of the smoke and fire damper when it rotates with the output shaft of the motor 2.

[0038] The portable electric reset device for smoke and fire dampers in this solution has a simple structure, making it easy to carry and use. Through the transmission of the output shaft of motor 2, the connecting part 6 can drive the actuator handle fixing part of the smoke and fire damper to rotate counterclockwise by 90° to reset. It can replace manual reset to achieve a fast reset effect, improve the efficiency of the reset operation, reduce the operation risk for maintenance personnel, and solve the problem of difficulty in resetting smoke and fire dampers caused by insufficient maintenance space.

[0039] Specifically, a handheld part 11 is provided at the end of the insulating rod 1 away from the reset mechanism. The control mechanism 3 includes a controller, a control button 31, and a power interface 32. Both the control button 31 and the power interface 32 are located on the controller. The power interface 32 is a 24V power interface and is located on the end face of the insulating rod 1 away from the reset mechanism and is electrically connected to the motor 2. The control button 31 can protrude from the outer surface of the insulating rod 1 and is electrically connected to the controller. The controller is installed inside the insulating rod 1 and can control the start and stop of the motor 2. The controller has three control buttons 31 on its surface, which, together with the control circuit board and lithium battery pack inside the controller, form a control circuit. The power interface 32 on the controller directly provides power to the device or charges the internal lithium battery pack of the device.

[0040] Specifically, the portable smoke and fire damper electric reset device of this solution also includes a fixed bracket 4, which is installed at one end of the insulating rod 1 and used to install the motor 2.

[0041] Specifically, the limiting member 5 includes a first limiting block 51, a connecting block 52, and a second limiting block 53 connected in a U-shape in sequence. The first limiting block 51 and the second limiting block 53 form the limiting part. The opening of the U-shaped structure faces away from the fixed bracket, so that the side of the first limiting block 51 and the second limiting block 53 that are close to each other can contact the smoke and fire damper. This avoids damage to the smoke and fire damper actuator handle fixing component that mates with the slot 61 due to the shaking of the insulating rod 1. In addition, the arrangement of the first limiting block 51 and the second limiting block 53 facilitates the mating of the smoke and fire damper actuator handle fixing component with the slot 61, avoids mating errors, reduces mating time, and improves the efficiency of the reset operation. The connecting block 52 is detachably fixedly connected to the fixed bracket 4. The front end of the motor 2 has two fixing holes for screws to install the connecting block 52 to the front end of the DC geared motor 2. Additionally, a camera 8 can be installed on the connecting block 52 of the limiting member 5. The camera 8 can be installed on the side of the connecting block 52 near the connecting member 6. The image information captured by the camera 8 can be displayed on a display device for user observation, thereby facilitating the connection of the connecting member 6 with the structure to be reset on the fireproof and smokeproof valve. A mobile phone or other electronic device with a display screen can be used as the display device. A mobile phone holder 7 or other mounting bracket that can fix the display device can be installed on the end of the insulating rod 1 near the handheld part 11 for fixing the mobile phone or other display device. The image transmission between the display device and the camera 8 can be achieved using conventional technical means. During use, the structure to be reset on the fireproof and smokeproof valve, such as the actuator handle fixing part of the fireproof and smokeproof valve, can be observed through the camera 8 to facilitate the reset operation.

[0042] Specifically, the end of the connecting member 6 away from the slot 61 has a groove. The output shaft of the motor 2 is inserted into the groove and detachably fixedly connected to the connecting member 6. The output shaft of the motor 2 and the connecting member 6 can be detachably fixedly connected by screws. The connecting member 6 can rotate synchronously with the output shaft of the motor 2. Through the transmission of the output shaft of the motor 2, the connecting member 6 can rotate 90° counterclockwise, achieving the purpose of equipment reset and reducing the operational risks for maintenance personnel. After the fireproof and smokeproof valve is reset, the motor 2 can be started to drive the connecting member 6 to rotate 90° clockwise back to its original position.

[0043] This device overcomes the shortcomings and deficiencies of existing technologies, providing a portable smoke and fire damper reset device that can replace manual reset by climbing ladders, achieving the desired reset effect for smoke and fire dampers. Furthermore, this device can be used to reset equipment in areas with limited maintenance space that are difficult for personnel to maintain.

[0044] Specifically, the upper end face of the connector 6 is provided with a first protrusion 62, a second protrusion 63, and a third protrusion 64. The first protrusion 62, the second protrusion 63, and the third protrusion 64 are arranged clockwise around the axis of the connector at intervals, and form the sidewalls of the first protrusion 62, the second protrusion 63, and the third protrusion 64 for forming the slot. In the case of limited space, when the smoke and fire damper actuator handle enters the slot 61, the smoke and fire damper actuator handle fixing member can be smoothly embedded in the gap between any two of the first protrusion 62, the second protrusion 63, and the third protrusion 64. The first protrusion 62, the second protrusion 63, and the third protrusion 64 can all limit the smoke and fire damper actuator handle fixing member in contact with them, and push the smoke and fire damper actuator handle fixing member to rotate and reset when the connector 6 rotates. The shaft of the connecting part 6 is coaxial with the shaft of the motor 2. The actuator handle fixing part of the smoke and fire damper is used to connect the actuator handle to the housing of the smoke and fire damper. The portable electric reset device of the smoke and fire damper in this solution can drive the actuator handle of the smoke and fire damper to move and reset.

[0045] Specifically, the gap between the first protrusion 62 and the second protrusion 63 is located at the point furthest from the second rod 14, and the gap between the first protrusion 62 and the third protrusion 64 is located at the point closest to the second rod 14. A larger gap can be provided between the first protrusion 62 and the second protrusion 63, so that in some cases where space is limited, the actuator handle of the smoke and fire damper can pass through the gap between the first protrusion 62 and the second protrusion 63 and smoothly enter the slot 61.

[0046] Specifically, the fixing bracket 4 includes a first mounting plate and a second mounting plate connected to each other in an L-shape. The first mounting plate is detachably fixed to the end face of the insulating rod 1, and the fixing bracket 4 is connected to the end of the insulating rod 1 by a metal screw thread. The motor 2 is mounted on the second mounting plate, and the rear end of the motor 2 has four fixing holes for screws to install the fixing bracket 4 to the rear end of the motor 2.

[0047] Specifically, a rib is provided between the first mounting plate and the second mounting plate, and the rib is used to fix the first mounting plate and the second mounting plate together.

[0048] Specifically, the output shaft of the motor 2 is perpendicular to the axis of the insulating rod 1.

[0049] Specifically, the insulating rod 1 includes a first rod body 13 and a second rod body 14 connected to each other. The handheld part 11 is disposed on the second rod body 14, the control mechanism 3 is mounted on the second rod body 14, the power interface 32 is located on one end face of the second rod body 14, and the connector 12 is installed on the end of the second rod body 14 away from the power interface 32. A PCB board is installed inside the connector 12, and the power interface 32 and the internal wires can be connected to the connector 12 with the PCB board at the end. Connectors 12 are installed on both ends of the first rod body 13. The fixing bracket 4 in the reset mechanism is detachably fixed on the end of the first rod body 13 away from the second rod body 14. The other end of the first rod body 13 is detachably fixed to the second rod body 14 through the two connectors 12. The wires inside the first rod body 13 can be connected to the connectors 12 with the PCB board at both ends of the first rod body 13. A power interface 32 is located at one end of the second rod 14 and is used to supply power to the 24V DC geared motor 2. A connector 12 is installed at the other end of the second rod 14. The first rod 13 and the second rod 14 are connected and fixedly connected by two connectors 12 at their connecting nodes. After the two connectors 12 are connected and fixed, the wires inside the corresponding rod bodies can form an electrical circuit, thereby electrically connecting the motor 2 to the power interface 32. The power interface 32 can be connected to an external power supply 9 to supply power to the motor 2.

[0050] Specifically, the insulating rod 1 further includes at least one third rod 15 located between the first rod 13 and the second rod 14. The third rod 15 increases the overall length of the insulating rod 1, thereby adapting to the installation height of various smoke and fire dampers. Each of the third rod 15 has a connector 12 installed at both ends. The wires inside the third rod 15 can be connected to the connectors 12 with PCB boards at both ends of the third rod 15. The two connectors 12 can be detachably connected and fixed. When the number of third rods 15 is selected, both ends of the third rod 15 are detachably fixedly connected to the first rod 13 and the second rod 14, respectively; that is, the connectors 12 at both ends of the third rod 15 are detachably fixedly connected to the connectors 12 at the ends of the first rod 13 and the second rod 14, respectively. When the number of third rods 15 is two or more, the two or more third rods 15 can be connected in sequence to form an extension body. The two ends of the extension body are detachably fixedly connected to the first rod 13 and the second rod 14, respectively. That is, the connectors 12 at both ends of the extension body are detachably fixedly connected to the connectors 12 at the ends of the first rod 13 and the second rod 14, respectively.

[0051] A method for using a portable smoke and fire damper electric reset device, employing the portable smoke and fire damper electric reset device as described above, includes the following steps:

[0052] S1. Connect the first rod 13 and the second rod 14 to form the insulating rod 1 as a whole. According to the position or installation height of the smoke and fire damper, select an appropriate number of third rods 15 to connect to the first rod 13 and the second rod 14 respectively, so as to adjust the overall length of the insulating rod 1 to an appropriate length.

[0053] S2. Extend the end of the insulating rod 1 with the reset mechanism to the position of the smoke and fire damper, and fit the limiting member 5 with the housing of the smoke and fire damper actuator so that the fixing member of the smoke and fire damper actuator handle can be inserted into the slot 61 of the connecting member 6, so that the connecting member 6 can lock or clamp the fixing member of the smoke and fire damper actuator handle.

[0054] S3. Place the handheld maintenance terminal on the mobile phone holder 7 or other mounting brackets that can fix the display device, and secure it.

[0055] S4. Press and hold control button 31 to start motor 2. At this time, connector 6 rotates counterclockwise. Observe the image transmitted back to the handheld terminal by camera 8 in real time. After connector 6 has rotated 90° counterclockwise, release control button 31 to stop motor 2. Confirm the status of smoke and fire damper to complete the reset of smoke and fire damper. Then separate smoke and fire damper from connector 6 and limit member 5.

[0056] S5. Press the control button 31 briefly to start the motor 2. At this time, the connecting part 6 rotates clockwise. After the connecting part 6 has rotated 90° clockwise to its original position, release the control button 31 to stop the motor 2.

[0057] Other aspects of the portable smoke and fire damper electric reset device described in this invention can be found in the prior art and will not be repeated here.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A portable smoke and fire damper electric reset device, characterized in that: It includes an insulating rod, a motor, a control mechanism, and a reset mechanism. The insulating rod is telescopic, the motor is mounted on the insulating rod, and the control mechanism and the reset mechanism are respectively mounted at both ends of the insulating rod. The control mechanism is used to control the start and stop of the motor. The reset mechanism includes a limiting member and a connecting member. One end of the connecting member is connected to the output shaft of the motor, and the other end is provided with a slot that mates with the reset actuator of the smoke and fire damper. One end of the limiting member is connected to the insulating rod, and the other end is provided with a limiting part. The limiting part can contact or abut against the outside of the smoke and fire damper. The motor is used to drive the connecting member to rotate. The control mechanism includes a controller, a control button, and a power interface. The power interface is located on the end face of the insulating rod away from the reset mechanism and is electrically connected to the motor. The control button can protrude from the outer surface of the insulating rod and is electrically connected to the controller. The controller is installed inside the insulating rod and can control the start and stop of the motor. It also includes a fixing bracket, which is installed at one end of the insulating rod and used to install the motor; The limiting component includes a first limiting block, a connecting block, and a second limiting block connected in sequence in the shape of an inverted triangle. The first limiting block and the second limiting block form the limiting part. The connecting block is detachably and fixedly connected to the fixed bracket. The insulating rod includes a first rod body and a second rod body. Connectors are installed at both ends of the first rod body. The power interface is located on one end face of the second rod body. The connector is installed on the end of the second rod body away from the power interface. The fixing bracket is detachably fixed to one end of the first rod body. The other end of the first rod body is detachably fixed to the second rod body through the two connectors. The insulating rod also includes at least one third rod located between the first rod and the second rod. Each of the third rods is connected in sequence to form an extension. Each of the third rods has a connector installed at both ends. The connectors located at both ends of the extension are detachably and fixedly connected to the connectors at the ends of the first rod and the second rod, respectively.

2. The portable smoke and fire damper electric reset device according to claim 1, characterized in that: The connector has a groove at the end away from the slot, and the output shaft of the motor is inserted into the groove and detachably fixedly connected to the connector.

3. The portable smoke and fire damper electric reset device according to claim 1, characterized in that: The fixed bracket includes a first mounting plate and a second mounting plate connected to each other in an L-shape. The first mounting plate is detachably fixed to the end face of the insulating rod, and the motor is mounted on the second mounting plate.

4. The portable smoke and fire damper electric reset device according to claim 3, characterized in that: A rib is provided between the first mounting plate and the second mounting plate, and the rib is used to fix the first mounting plate and the second mounting plate together.

5. The portable smoke and fire damper electric reset device according to claim 1, characterized in that: The output shaft of the motor is perpendicular to the axis of the insulating rod.

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