Automatic closing mechanism for double-eccentric fireproof ring

Abstract

The utility model relates to the field of automatic closing devices, and discloses a double-eccentric fireproof ring automatic closing mechanism which comprises a round pipe, the top of the round pipe is fixedly connected with a supporting block, the top of the supporting block is fixedly connected with a motor, the driving end of the motor is fixedly connected with a first gear, and the bottom of the first gear is connected with a gear ring in an engaged mode. Supporting plates are rotationally connected to the front side and the rear side of the gear ring, an opening and closing mechanism is connected to the interior of the gear ring in a meshed mode, and two buckle mechanisms are fixedly connected to the sides, away from each other, of the two supporting plates. According to the utility model, the motor drives the gear ring and the internal gear to rotate through the gear so as to drive the rack to move, so that the baffles on the rack reliably seal the pipeline and effectively prevent leakage of gas or liquid, and when the equipment does not work, the baffles are completely positioned on the two sides of the pipeline, so that materials conveyed in the pipeline are prevented from being in direct contact with the sealing ring; therefore, the service life of the sealing ring is obviously prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic closing device field especially relates to double eccentric fireproof ring automatic closing mechanism. BACKGROUND

[0002] Double eccentric fireproof ring automatic closing mechanism is born under the background of the increasing requirement of industrial development on fire safety, the traditional device can effectively prevent the spread of flame and high-temperature gas, can automatically start according to temperature or other fire signals, quickly close the valve, cut off the channel of fire source and combustible medium, gain time for personnel evacuation and fire rescue, reduce the loss caused by fire, greatly improve the fire safety of industrial pipeline system, and guarantee the safety of production equipment and personnel.

[0003] In the prior art, the center of rotation of part of the device is eccentric to the center line of the sealing surface and the center line of the valve seat, which makes the device quickly separate from the valve seat when opening, reduces the friction and wear of the sealing surface, and ensures the sealing performance when closing. In terms of automatic closing, a temperature sensing element is usually used to monitor the ambient temperature. The temperature sensing element is stable at normal temperature and has no effect on the valve. When the temperature rises to a certain degree due to fire, the temperature sensing element will trigger the driving device, and the spring energy storage mechanism will release energy to drive the device to rotate after the temperature sensing element fails, so as to achieve the purpose of closing.

[0004] However, in the specific implementation process, the device is also in the pipeline when not working, which will cause the sealing ring to be corroded for a long time, thereby reducing the sealing performance and increasing the risk of fire. In view of the above problems, the double eccentric fireproof ring automatic closing mechanism is proposed. UTILITY MODEL CONTENTS

[0005] The double eccentric fireproof ring automatic closing mechanism provided by the utility model aims to improve the problem that the sealing ring on the baffle of part of the device in the prior art is easy to be corroded.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] The double eccentric fireproof ring automatic closing mechanism comprises a circular pipe, a support block is fixedly connected to the top of the circular pipe, a motor is fixedly connected to the top of the support block, a gear one is fixedly connected to the driving end of the motor, a gear ring is meshedly connected to the bottom of the gear one, support plates are rotatably connected to the front and rear sides of the gear ring, an opening and closing mechanism is rotatably connected to the inside of the gear ring, two buckle mechanisms are fixedly connected to the sides away from each other of the two support plates.

[0008] The opening and closing mechanism comprises gear two, the outer parts of two gear two are rotationally connected on the proximal sides of two support plates, two proximal sides of two gear two are slidingly connected with two racks, the proximal sides of two racks are fixedly connected with block assemblies, and the gear two and the tooth ring are meshingly connected.

[0009] As a further description of the above technical solution:

[0010] The block assembly comprises a baffle, the right side of the baffle is fixedly connected to the top of the rack, the bottom of the rack is fixedly connected to the left side of the baffle, the inner part of the rack is fixedly connected with a sliding rod, and the front and back sides of the baffle are slidingly connected to the proximal sides of two support plates.

[0011] As a further description of the above technical solution:

[0012] The buckle mechanism comprises a buckle shell, the inner part of the buckle shell is provided with an elastic element assembly, the front side of the buckle shell is slidingly connected with a sliding block, the proximal sides of two buckle shells are slidingly connected with two buckling tongues, and the rear side of the buckle shell is fixedly connected to the front side of the support plate.

[0013] As a further description of the above technical solution:

[0014] The elastic element assembly comprises a spring, one end of the spring is fixedly connected to the outer part of the buckling tongue, and the other end of the spring is fixedly connected to the inner left side of the buckle shell.

[0015] As a further description of the above technical solution:

[0016] The top front side of the buckle shell is slidingly connected with a pin, the front side of the buckling tongue is fixedly connected to the rear side of the sliding block, and the outer part of the buckling tongue is in contact with the circular pipe.

[0017] As a further description of the above technical solution:

[0018] The outer part of the circular pipe is screwedly connected to the inner part of the support plate, and the distal sides of two circular pipes are fixedly connected with through hole plates.

[0019] As a further description of the above technical solution:

[0020] Both ends of the sliding rod are slidingly connected at the grooves of two support plates, and the outer part of the rack is slidingly connected to the proximal sides of two support plates.

[0021] The utility model has the advantages of the following:

[0022] 1. The utility model discloses a motor makes the gear ring and internal gear rotate through gear, and then drives rack movement, makes the sealing of baffle on rack to pipe, when the equipment enters the working condition, baffle accurately moves to the inside of pipe, and closely matches the pipe inner wall, realizes reliable sealing to pipe, effectively prevents the leakage of gas or liquid, greatly promotes the fireproof performance, when the equipment does not work, baffle is located at pipe both sides completely, avoids the direct contact of the corrosive gas or liquid of pipe inside delivery with sealing ring, thereby prolongs the service life of sealing ring, improves the durability of whole equipment indirectly.

[0023] 2. The utility model discloses a buckle is seted up on the support plate, when the circular tube is connected with the support block, the buckle is fixed with the circular tube under the action of spring, can keep stable and sealability when working, greatly simplifies the installation process, does not need professional complex operation skill, reduces the requirement to the professional level of staff, improves the installation efficiency significantly, simultaneously, the design also shows great convenience in the equipment transportation and subsequent part replacement link, can effectively improve the overall service life of device. DRAWINGS

[0024] Figure 1 It is the three-dimensional structure schematic diagram of the double eccentric fireproof ring automatic closing mechanism that the utility model provides;

[0025] Figure 2 It is the gear ring structure schematic diagram of the double eccentric fireproof ring automatic closing mechanism that the utility model provides;

[0026] Figure 3 It is the buckle structure schematic diagram of the double eccentric fireproof ring automatic closing mechanism that the utility model provides.

[0027] Figure 4 It is the support plate structure schematic diagram of the double eccentric fireproof ring automatic closing mechanism that the utility model provides.

[0028] Legend:

[0029] 1, circular tube;2, support block;3, motor;4, gear one;5, gear ring;6, support plate;7, buckle shell;8, through-hole plate;9, gear two;10, sliding rod;11, rack;12, baffle;13, tongue;14, sliding block;15, spring;16, pin. Specific implementation

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0031] With reference to Figures 1 to 3 The utility model provides an embodiment: a kind of double eccentric fireproof ring automatic closing mechanism, including pipe 1, pipe 1 as the basic component of whole mechanism, bear the channel effect of medium transmission, its outside is connected in the inside of support plate 6, this connection mode is convenient to install and disassemble, when needing to maintain or adjust mechanism, pipe 1 can be easily separated from support plate 6, improve the maintainability of equipment. The top of pipe 1 is fixedly connected with support block 2, support block 2 plays the role of firm support motor 3, ensure that motor 3 keeps stable during operation, avoid affecting transmission effect due to sway, guarantee the normal operation of whole mechanism. The top of support block 2 is fixedly connected with motor 3, motor 3 as power source, provides driving power for whole automatic closing mechanism, its powerful torque output can drive subsequent transmission assembly efficient operation, realizes fast, accurate closing action. The driving end of motor 3 is fixedly connected with gear one 4, gear one 4 passes on the rotary power of motor 3 to gear ring 5, its accurate tooth shape design guarantees the stability and accuracy of power transmission, reduces power loss. The bottom of gear one 4 is engagedly connected with gear ring 5, gear ring 5 rotates under the drive of gear one 4, in turn drive internal and mesh with gear two 9, it plays the role of power transfer and transmission direction change, so that the layout of whole transmission system is more reasonable, can better adapt to different working scene needs. The front and back two sides of gear ring 5 are rotatably connected with support plate 6, support plate 6 not only provides installation and support platform for gear ring 5, gear two 9 and rack 11 etc. Component, also limit the movement direction of each component, ensure that it moves according to predetermined trajectory, guarantee the stability and reliability of mechanism operation. The inside of gear ring 5 is rotatably connected with opening and closing mechanism, opening and closing mechanism is responsible for realizing the opening and closing operation to pipe 1, is the core execution part of whole mechanism, its accurate action can effectively control the flow and block of medium.

[0032] The opening and closing mechanism comprises two gear twos 9, the outer parts of which are rotationally connected to the proximal sides of the two support plates 6, and the gear two 9 rotates under the driving of the gear ring 5, and converts the circular motion into linear motion through cooperation with the rack 11, thereby pushing the rack 11 and the block assembly connected thereto to move, realizing the closing or opening operation of the circular pipe 1. This transmission mode is efficient and stable. The proximal sides of the two gear twos 9 are slidingly connected to two racks 11, which move linearly under the driving of the gear two 9. The accurate linear motion of the rack 11 can ensure that the block assembly moves accurately to the predetermined position, realizing reliable sealing or smooth flow of the circular pipe 1 and ensuring the accuracy of the mechanism operation. The proximal sides of the two racks 11 are fixedly connected to the block assembly, which directly acts on the circular pipe 1 and realizes the closing or opening of the circular pipe 1 through movement, and is the key executive component for realizing the fireproof function, and its sealing performance directly affects the fireproof effect of the mechanism. The gear two 9 and the gear ring 5 are meshingly connected, which ensures the stable transmission of power from the gear ring 5 to the gear two 9, and ensures that the opening and closing mechanism can accurately respond to the driving of the motor 3 and timely and effectively complete the opening and closing operation of the circular pipe 1.

[0033] The block assembly comprises a baffle 12, the right side of which is fixedly connected to the top of the rack 11, and the bottom of the rack 11 is fixedly connected to the left side of the baffle 12. The baffle 12 moves under the driving of the rack 11, and when it moves towards the center of the circular pipe 1, it can tightly fit the inner wall of the circular pipe 1, realizing the sealing of the circular pipe 1 and effectively preventing the spread of flames and smoke through the circular pipe 1 during a fire, providing reliable protection for fire safety. The inside of the rack 11 is fixedly connected with a slide rod 10, which plays a guiding role to ensure that the rack 11 remains stable during movement and does not deviate, ensuring that the baffle 12 can accurately move to the predetermined position and improving the stability and reliability of the mechanism operation. The front and rear sides of the baffle 12 are slidingly connected to the proximal sides of the two support plates 6, and the support plate 6 plays a limiting and supporting role in the movement of the baffle 12, making the movement of the baffle 12 more stable and further enhancing the tightness of the baffle 12 and the circular pipe 1 when sealed.

[0034] The buckle mechanism comprises a buckle shell 7, which provides protection and mounting space for the internal elastic element assembly and the latch tongue 13, and serves as a carrier for connecting the entire buckle mechanism with the support plate 6, thereby ensuring that the buckle mechanism is stably mounted on the support plate 6. The inside of the buckle shell 7 is provided with an elastic element assembly, and the spring 15 in the elastic element assembly can provide an elastic force for the latch tongue 13, so that the latch tongue 13 can be automatically clamped into the groove of the circular pipe 1 during installation of the circular pipe 1, thereby achieving quick fixing of the circular pipe 1, and the operation is simple, firm and reliable. The front side of the buckle shell 7 is slidably connected with a sliding block 14, which facilitates manual control of the position of the latch tongue 13 by the operator, and the sliding block 14 can be easily moved to control the clamping and loosening of the latch tongue 13 during installation or disassembly of the circular pipe 1, thereby improving the convenience of operation. Two latch tongues 13 are slidably connected to the proximal side of the two buckle shells 7, and the latch tongues 13 are clamped into the groove of the circular pipe 1 under the action of the spring 15, thereby achieving fixing of the circular pipe 1 and preventing displacement or loosening of the circular pipe 1 during work, thereby ensuring the connection stability of the entire mechanism. The rear side of the buckle shell 7 is fixedly connected to the front side of the support plate 6, and this connection mode enables the buckle mechanism and the support plate 6 to be closely combined to jointly provide stable fixing and support for the circular pipe 1.

[0035] The elastic element assembly comprises a spring 15, one end of the spring 15 is fixedly connected to the outside of the latch tongue 13, and the other end of the spring 15 is fixedly connected to the inside of the left side of the buckle shell 7. When an external force is applied, the spring 15 deforms, and after the external force disappears, the spring 15 can return to its original state. By utilizing this characteristic, the spring 15 can provide a continuous elastic force for the latch tongue 13, thereby ensuring that the latch tongue 13 always maintains a clamping state for the circular pipe 1 and improving the reliability of the connection.

[0036] Referring to Figures 3 to 4 The top front side of the buckle shell 7 is slidably connected with a pin 16, which can fix the sliding block 14 at a specific position during installation and disassembly of the circular pipe 1, thereby preventing accidental movement of the latch tongue 13 and ensuring the safety and stability of the operation process. The front side of the latch tongue 13 is fixedly connected to the rear side of the sliding block 14, the outside of the latch tongue 13 is in contact with the circular pipe 1, and the movement of the sliding block 14 drives the movement of the latch tongue 13, thereby achieving clamping and loosening of the circular pipe 1. This connection mode makes the operation more flexible and convenient.

[0037] The outside of the circular pipe 1 is threadedly connected to the inside of the support plate 6, and this connection mode not only facilitates installation, but also ensures the firmness of the connection between the circular pipe 1 and the support plate 6 during operation of the equipment, thereby preventing loosening and ensuring the stability of the entire mechanism. The distal sides of the two circular pipes 1 are fixedly connected with a through-hole plate 8, which can block the entry of sundries into the circular pipe 1 to some extent, and in some working scenarios, it can also have the function of adjusting the flow or pressure of the medium, thereby further expanding the function of the mechanism.

[0038] The two ends of the slide bar 10 are slidingly connected at the grooves of the two support plates 6, and the outer part of the rack 11 is slidingly connected at the side of the two support plates 6 close to each other, and the cooperation of the grooves on the support plates 6 with the slide bar 10 and the rack 11 provides accurate guidance for the linear movement of the rack 11, and ensures that the rack 11 and the baffle plate 12 connected therewith can move accurately and stably, so as to realize reliable sealing and opening of the circular pipe 1 and improve the working precision and stability of the mechanism.

[0039] Working principle: when a fire occurs, the motor 3 is started to make the gear one 4 rotate, and then the gear ring 5 connected in meshing manner rotates, under the rotation of the gear ring 5, the rotation of the gear two 9 connected in meshing manner in the interior of the gear ring 5 makes the rack 11 move up and down at the sliding groove in the interior of the support plate 6, and then the baffle plate 12 moves to the center of the support plate 6, so as to realize the closure of the circular pipe 1, when the fire is over, the motor 3 is reversely rotated to make the gear one 4 move, thereby driving the gear ring 5 to move, and then driving the gear two 9 to move, finally through the rack 11, the baffle plate 12 moves to the two sides, so that the baffle plate 12 is prevented from being corroded by the transported materials, and the service life is improved.

[0040] When installation is needed, first of all, the catch tongue 13 is moved to one end of the buckle shell 7 through the sliding block 14, and is fixed through the pin 16, at this time, the circular pipe 1 with the threaded end is aligned with the center of the support plate 6, after complete fixation, the pin 16 is pulled upward, the catch tongue 13 returns to the original state under the action of the spring 15, and the catch tongue 13 is clamped into the groove of the circular pipe 1, so as to realize the fixation of the circular pipe 1, when disassembly is needed, the sliding block 14 is moved to one end of the buckle shell 7, and is fixed through the pin 16, finally, the circular pipe 1 is reversely rotated to realize disassembly, the installation process is simplified, professional and complex operation skills are not needed, the requirement for the professional level of the workers is reduced, and the installation efficiency is significantly improved.

[0041] Finally, it should be noted that: the above only describes preferred embodiments of the utility model, and is not used for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Double eccentric fire ring automatic closing mechanism, comprising a circular tube (1), characterized in that: The top of the circular pipe (1) is fixedly connected with a supporting block (2), the top of the supporting block (2) is fixedly connected with a motor (3), the driving end of the motor (3) is fixedly connected with a gear one (4), the bottom of the gear one (4) is meshedly connected with a gear ring (5), the front and rear sides of the gear ring (5) are rotatably connected with supporting plates (6), the inside of the gear ring (5) is rotatably connected with an opening and closing mechanism, the far sides of the two supporting plates (6) are fixedly connected with two buckle mechanisms. The opening and closing mechanism comprises two gears two (9), the outsides of the two gears two (9) are rotatably connected on the close sides of the two supporting plates (6), the close sides of the two gears two (9) are slidably connected with two racks (11), the close sides of the two racks (11) are fixedly connected with a stop block assembly, and the gear two (9) and the gear ring (5) are meshedly connected.

2. The dual eccentric fire ring automatic closure mechanism of claim 1, wherein: The stop block assembly comprises a baffle (12), the right side of the baffle (12) is fixedly connected on the top of the rack (11), the bottom of the rack (11) is fixedly connected on the left side of the baffle (12), the inside of the rack (11) is fixedly connected with a sliding rod (10), and the front and rear sides of the baffle (12) are slidably connected on the close sides of the two supporting plates (6).

3. The dual eccentric fire ring automatic closure mechanism of claim 1, wherein: The buckle mechanism comprises a buckle shell (7), the inside of the buckle shell (7) is provided with an elastic element assembly, the front side of the buckle shell (7) is slidably connected with a sliding block (14), the close sides of the two buckle shells (7) are slidably connected with two buckling tongues (13), and the rear side of the buckle shell (7) is fixedly connected on the front side of the supporting plate (6).

4. The dual eccentric fire ring automatic closure mechanism of claim 3, wherein: The elastic element assembly comprises a spring (15), one end of the spring (15) is fixedly connected on the outside of the buckling tongue (13), and the other end of the spring (15) is fixedly connected on the inside left side of the buckle shell (7).

5. The dual eccentric fire ring automatic closure mechanism of claim 3, wherein: The top front side of the buckle shell (7) is slidably connected with a pin (16), the front side of the buckling tongue (13) is fixedly connected on the rear side of the sliding block (14), and the outside of the buckling tongue (13) is in contact with the circular pipe (1).

6. The dual eccentric fire ring automatic closure mechanism of claim 1, wherein: The outside of the circular pipe (1) is threadedly connected on the inside of the supporting plate (6), and the far sides of the two circular pipes (1) are fixedly connected with through hole plates (8).

7. The dual eccentric fire shield automatic closure mechanism of claim 2, wherein: The two ends of the sliding rod (10) are slidably connected at the grooves of the two supporting plates (6), and the outside of the rack (11) is slidably connected on the close sides of the two supporting plates (6).

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