Fireproof valve convenient to replace

Abstract

The fireproof valve convenient to replace relates to the technical field of fireproof valves and comprises a fireproof valve body, a mounting plate is fixed in the fireproof valve body, a mounting groove is formed in the lower end of the mounting plate, and a plurality of positioning rods are mounted on the lower portion of the side portion of the mounting plate. The outer sides of the plurality of positioning rods are sleeved with a filter plate; fixing pieces are mounted on the left side and the right side of the mounting plate, the fixing pieces are used for fixing the filter plate, reset pieces are mounted between the fixing pieces and the mounting plate, and a dismounting mechanism is mounted on the side, away from the center of the mounting plate, of each fixing piece and used for driving the corresponding fixing piece to move. According to the fireproof valve convenient to replace, through cooperation of the fixing piece and the reset piece, installation of the filter plate can be completed, the filter plate can be detached only by pulling the pull ring, and the replacement efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fire dampers, in particular to a fire damper which is easy to replace. Background Art

[0002] In modern buildings and industrial facilities, fire dampers, as key components of ventilation and fire protection systems, play a vital role. Their primary function is to promptly block the spread of fire and smoke when a fire occurs, ensuring safe evacuation routes and minimizing damage to building structures and equipment.

[0003] With the continuous improvement of fire safety standards and the increasing requirements for ventilation system filtration in various complex environments, the filter plates inside fire dampers need to be frequently maintained and replaced. Traditional fire dampers have many inconveniences in the installation and replacement of filter plates. Many fire dampers use relatively complex fixing structures, such as using a large number of bolts, nuts or welding to fix the filter plates to the valve body. When the filter plates need to be replaced, maintenance personnel often need to spend a lot of time and energy to dismantle these fastening devices. Not only is the operation cumbersome, but this replacement method is also difficult in confined spaces or harsh environments such as high temperature and high dust. This seriously affects the maintenance efficiency of the fire damper and the reliability of the overall fire protection system.

[0004] Therefore, we propose a fire damper that is easy to replace in order to solve the problems raised above. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The purpose of the present utility model is to provide a fire damper that is easy to replace, so as to solve the problems in the current market raised by the above background technology.

[0007] 2. Technical solution:

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a fire damper that is easy to replace, comprising a fire damper body, a mounting plate fixed inside the fire damper body, a mounting groove formed inside the lower end of the mounting plate, a plurality of positioning rods mounted below the side of the mounting plate, and filter plates sleeved on the outer sides of the plurality of positioning rods;

[0009] Fixing parts are installed on both sides of the mounting plate, and the fixing parts are used to fix the filter plate. A reset part is installed between the fixing parts and the mounting plate, and a disassembly mechanism is installed on the side of the fixing parts away from the center of the mounting plate, and the disassembly mechanism is used to drive the fixing parts to move.

[0010] Furthermore, the fixing part is composed of an anti-slip plate and a fixing plate, the anti-slip plate is slidably installed inside the mounting plate, and the fixing plate is fixedly installed on the side of the anti-slip plate close to the center of the mounting plate, and the lower end side of the fixing plate is designed to be inclined, and the upper end surface of the fixing plate is fitted with the lower end surface of the filter plate.

[0011] Through the above technical solution, the fixing plate will not block the filter plate from moving upward.

[0012] Furthermore, there are two fixing members symmetrically distributed about the center of the mounting plate.

[0013] The above technical solution enables the filter plate to be fixed.

[0014] Furthermore, the reset member includes guide rods fixedly installed at equal intervals on the inner wall of the fire damper body, and a pressure spring is sleeved on the outside of each guide rod, and the two ends of the pressure spring are respectively connected to the inner wall of the fire damper body and the side of the anti-slip plate.

[0015] Through the above technical solution, the fixing member can be driven to move in the reverse direction.

[0016] Furthermore, the disassembly mechanism includes a pull rope with one end fixed to the side of the anti-slip plate, a pull ring fixed to the other end of the pull rope, and a fixed pulley assembly and a fixed ring are respectively provided in the middle of the pull rope, and the fixed pulley assembly and the fixed ring are both installed on the inner wall of the fire damper body.

[0017] Through the above technical solution, the fixing piece can be driven to move after the pull ring is pulled.

[0018] Furthermore, the upper end surface and the side of the filter plate are both in contact with the inner wall of the mounting groove.

[0019] The above technical solution can improve the installation stability.

[0020] 3.Beneficial effects:

[0021] The technical solution provided by the present invention is compared with the prior art. The fire damper of the present invention is easy to replace. The filter plate can be installed by cooperating with the fixing part and the reset part. The filter plate can be removed by simply pulling the pull ring, and the disassembly and assembly efficiency is high. The specific contents are as follows:

[0022] The positioning rods on the mounting plate provide an accurate installation position reference for the filter plate, facilitating the rapid installation and positioning of the filter plate. When the filter plate is sleeved on the outside of several positioning rods and moves upward, the inclined end of the fixing plate will not block the upward movement of the filter plate. At the same time, when the filter plate moves upward, the fixing plate will be squeezed and retracted into the inside of the mounting plate until the filter plate fits the lower end surface of the mounting plate. At this time, the fixing plate pops out from the inside of the mounting plate under the elastic action of the pressure spring and fits the lower end surface of the filter plate, completing the installation of the filter plate and achieving reliable fixation of the filter plate to prevent it from moving due to factors such as airflow during normal operation of the fire damper.

[0023] The pull rope and pull ring design in the disassembly mechanism means that operators do not need to use special tools or perform complicated disassembly of the fire damper. They can remove the filter plate by simply pulling the pull ring, which greatly saves the time and labor cost of replacing the filter plate and improves the maintenance efficiency of the fire damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall side-view three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the fire damper body of the utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the mounting plate of the utility model;

[0027] Figure 4 For this utility model Figure 3 A in the middle is an enlarged structural diagram;

[0028] Figure 5 This is a schematic side view of the three-dimensional structure of the fixing plate of the present invention.

[0029] In the figure: 1. Fire damper body; 2. Mounting plate; 21. Mounting slot; 3. Positioning rod; 4. Filter plate; 5. Fixing piece; 51. Anti-slip plate; 52. Fixing plate; 6. Resetting piece; 61. Guide rod; 62. Pressure spring; 7. Pull rope; 8. Pull ring; 9. Fixing ring. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," "provided with," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0034] See also Figure 1-5, a fire damper that is easy to replace, including a fire damper body 1, a mounting plate 2 is fixed inside the fire damper body 1, and a mounting groove 21 is opened inside the lower end of the mounting plate 2, and a plurality of positioning rods 3 are installed on the side of the mounting plate 2, and a filter plate 4 is sleeved on the outer side of the plurality of positioning rods 3; fixing parts 5 are installed on both sides of the mounting plate 2, and the fixing parts 5 are used to fix the filter plate 4, and a reset part 6 is installed between the fixing parts 5 and the mounting plate 2, and a disassembly mechanism is installed on the side of the fixing parts 5 away from the center of the mounting plate 2, and the disassembly mechanism is used to drive the fixing parts 5 to move; the fixing parts 5 are composed of an anti-slip plate 51 and a fixed The fire damper body 1 is composed of a fixed plate 52, an anti-slip plate 51 is slidably mounted inside the mounting plate 2, and the fixing plate 52 is fixedly mounted on the side of the anti-slip plate 51 close to the center of the mounting plate 2, and the lower end side of the fixing plate 52 is designed to be inclined, and the upper end surface of the fixing plate 52 is in contact with the lower end surface of the filter plate 4; there are two fixing members 5 symmetrically distributed about the center of the mounting plate 2; the reset member 6 includes guide rods 61 fixedly mounted on the inner wall of the fire damper body 1 at equal intervals, and each guide rod 61 is sheathed with a pressure spring 62 on the outer side, and the two ends of the pressure spring 62 are respectively connected to the inner wall of the fire damper body 1 and the side of the anti-slip plate 51;

[0035] First, the filter plate 4 is placed along the several positioning rods 3 on the lower side of the mounting plate 2. The positioning rods 3 play a preliminary positioning role, so that the filter plate 4 can be accurately located at the predetermined position below the mounting plate 2. During the continuous placement process, the inclined setting of the fixing plate 52 will not prevent the filter plate 4 from sliding upward. At the same time, when the filter plate 4 moves upward, the fixing plate 52 is squeezed and retracted into the inside of the mounting plate 2 until the filter plate 4 fits the lower end surface of the mounting plate 2. At this time, the fixing plate 52 pops out from the inside of the mounting plate 2 under the elastic action of the pressure spring 62 and fits the lower end surface of the filter plate 4, completing the installation of the filter plate 4 and achieving reliable fixation of the filter plate 4 to prevent it from moving due to factors such as airflow during normal operation of the fire damper.

[0036] The disassembly mechanism includes a pull rope 7 with one end fixed to the side of the anti-slip plate 51, a pull ring 8 fixed to the other end of the pull rope 7, and a fixed pulley assembly and a fixed collar 9 respectively provided in the middle of the pull rope 7, and both the fixed pulley assembly and the fixed collar 9 are mounted on the inner wall of the fire damper body 1; the upper end surface and the side of the filter plate 4 are in contact with the inner wall of the mounting groove 21;

[0037] When the filter plate 4 needs to be replaced, the operator pulls the pull ring 8, and the pull ring 8 drives the pull rope 7 to move. One end of the pull rope 7 is fixed to the side of the anti-slip plate 51. During the movement of the pull rope 7, the fixed pulley assembly in the middle changes the pulling direction of the pull rope 7, so that it can pull the anti-slip plate 51 more effectively. At the same time, the fixed ring 9 stabilizes the movement trajectory of the pull rope 7 to prevent it from shaking. The pull rope 7 pulls the anti-slip plate 51 to overcome the elastic force of the pressure spring 62 and move away from the center of the mounting plate 2. Since the fixed plate 52 is connected to the anti-slip plate 51, the fixed plate 52 also moves synchronously, so that the fixed plate 52 is separated from the filter plate 4. At this time, the old filter plate 4 can be removed from the positioning rod 3, and the disassembly efficiency is high.

[0038] Working principle: When using this easy-to-replace fire damper, Figure 1-5 As shown, first the operator pulls the pull ring 8, and the pull ring 8 pulls the anti-slip plate 51 through the pull rope 7 to overcome the elastic force of the pressure spring 62 and move in the direction away from the center of the mounting plate 2. Since the fixing plate 52 is connected to the anti-slip plate 51, the fixing plate 52 also moves synchronously therewith, so that the fixing plate 52 and the filter plate 4 are separated. At this time, the old filter plate 4 can be removed from the positioning rod 3, and the disassembly efficiency is high. Subsequently, the new filter plate 4 is placed along the several positioning rods 3 below the side of the mounting plate 2. During the continuous placement process, the fixing plate 52 is set in an inclined shape, which will not prevent the filter plate 4 from sliding upward until the filter plate 4 is attached to the lower end surface of the mounting plate 2. At this time, the fixing plate 52 pops out from the inside of the mounting plate 2 under the elastic action of the pressure spring 62 and fits with the lower end surface of the filter plate 4, completing the installation operation of the filter plate 4, realizing reliable fixation of the filter plate 4, and preventing it from moving due to factors such as airflow during normal operation of the fire damper.

[0039] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fire damper that is easy to replace, characterized by: The fire damper comprises a fire damper body (1), a mounting plate (2) is fixed inside the fire damper body (1), a mounting groove (21) is provided inside the lower end of the mounting plate (2), and a plurality of positioning rods (3) are installed below the side of the mounting plate (2), and a filter plate (4) is sleeved on the outer side of the plurality of positioning rods (3); Fixing members (5) are installed on both the left and right sides of the mounting plate (2), and the fixing members (5) are used to fix the filter plate (4). A reset member (6) is installed between the fixing member (5) and the mounting plate (2), and a disassembly mechanism is installed on the side of the fixing member (5) away from the center of the mounting plate (2), and the disassembly mechanism is used to drive the fixing member (5) to move.

2. The fire damper that is easy to replace according to claim 1, characterized in that: The fixing member (5) is composed of an anti-slip plate (51) and a fixing plate (52), wherein the anti-slip plate (51) is slidably mounted inside the mounting plate (2), and the fixing plate (52) is fixedly mounted on a side of the anti-slip plate (51) close to the center of the mounting plate (2), and the lower end side of the fixing plate (52) is designed to be inclined, and the upper end surface of the fixing plate (52) is in contact with the lower end surface of the filter plate (4).

3. The fire damper that is easy to replace according to claim 1, characterized in that: There are two fixing members (5) symmetrically distributed left and right about the center of the mounting plate (2).

4. The fire damper that is easy to replace according to claim 1, characterized in that: The reset member (6) comprises guide rods (61) fixedly mounted at equal intervals on the inner wall of the fire damper body (1), a pressure spring (62) being sleeved on the outer side of each guide rod (61), and two ends of the pressure spring (62) being respectively connected to the inner wall of the fire damper body (1) and the side of the anti-slip plate (51).

5. The fire damper that is easy to replace according to claim 1, characterized in that: The disassembly mechanism comprises a drawstring (7) with one end fixed to the side of the anti-slip plate (51), a draw ring (8) fixed to the other end of the drawstring (7), and a fixed pulley assembly and a fixed collar (9) respectively provided in the middle of the drawstring (7), and the fixed pulley assembly and the fixed collar (9) are both mounted on the inner wall of the fire damper body (1).

6. The fire damper that is easy to replace according to claim 1, characterized in that: The upper end surface and side portion of the filter plate (4) are both in contact with the inner wall of the mounting groove (21).

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