High-strength fireproof valve

Abstract

The utility model discloses a high-strength fireproof valve, and belongs to the technical field of fireproof valves. A high-strength fireproof valve comprises a frame, a first rotating shaft and a valve plate. The first rotating shaft is rotationally connected with the frame; the valve plate is fixedly connected with the first rotating shaft; the mounting plate is positioned on one side of the frame; the first fixing piece is used for fixing the frame and the upper end of the mounting plate; the first driving part is used for driving the first fixing part; the second fixing piece is used for fixing the frame and the lower end of the mounting plate; the second driving part is used for driving the second fixing part; the transmission part is used for transmission of the second driving part; the first fixing piece comprises a limiting block which is horizontally connected with the frame in a sliding manner; the connecting plate is fixedly connected with the limiting block; two ends of the first spring are fixedly connected with the frame and the connecting plate respectively. The high-strength fireproof valve has the beneficial effect that the high-strength fireproof valve convenient to disassemble is provided.

Description

Technical Field

[0001] The present application relates to the technical field of fire dampers, and in particular to a high-strength fire damper. Background Art

[0002] Fire dampers are installed on the supply and return air ducts of ventilation and air-conditioning systems. Among them, the louver fire damper is the most common type of fire damper. Its shutters are usually open. When a fire occurs in the air duct and the hot melt device is triggered, the shutters are closed, thereby cutting off the passage between the air duct and the equipment, blocking the spread of fire and preventing flammable materials from continuing to burn. It can meet the requirements of fire resistance stability and fire resistance integrity within a certain period of time, and play a role in isolating smoke and preventing fire.

[0003] With the development of society, fire dampers are widely used in fire protection. At present, most fire damper equipment needs to be inspected and repaired after being used for a period of time due to aging of the equipment. However, since the fire damper is installed on the ventilation duct with multiple screws, when maintenance is required, multiple screws need to be removed in a small space, which is inconvenient to operate.

[0004] Therefore, a high-strength fire damper with easy disassembly is provided. Utility Model Content

[0005] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0006] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a high-strength fire damper, a high-strength fire damper, comprising: a frame, a first rotating shaft and a valve plate; the first rotating shaft is rotatably connected to the frame; the valve plate is fixedly connected to the first rotating shaft; a mounting plate, located on one side of the frame; a first fixing member, used to fix the frame to the upper end of the mounting plate; a first driving member, used to drive the first fixing member; a second fixing member, used to fix the frame to the lower end of the mounting plate; a second driving member, used to drive the second fixing member; a transmission member, used for transmitting the second driving member; the first fixing member comprises: a limit block, horizontally slidably connected to the frame; a connecting plate, fixedly connected to the limit block; a first spring, whose two ends are respectively fixedly connected to the frame and the connecting plate; wherein the second fixing member has the same structure as the first fixing member; the mounting plate comprises a limit groove; and the limit block is inserted into the limit groove.

[0007] When maintenance is needed, the lead screw is rotated, and the rotation of the lead screw drives the limit block to move, so that the limit block is separated from the limit groove, and the disassembly can be completed, which is more convenient for disassembly.

[0008] Furthermore, the first driving member includes: a fixed plate fixedly connected to the frame; a lead screw rotatably connected to the fixed plate; a first slider horizontally slidably connected to the frame, the interior of which is threadedly connected to the lead screw; and a driving block fixedly connected to the first slider.

[0009] Furthermore, the driving block includes a driving inclined surface; and the limiting block includes a transmission inclined surface.

[0010] Furthermore, the frame is provided with a first sliding groove extending along the width direction of the frame; and the first sliding block moves along the first sliding groove.

[0011] Furthermore, the frame is provided with a guide groove extending along the length direction of the frame; the limit block moves along the guide groove.

[0012] Furthermore, two fixing plates are provided; the two fixing plates are respectively located at two ends of the lead screw.

[0013] Furthermore, the second driving member has the same structure as the first driving member.

[0014] Furthermore, the transmission member includes: a first synchronous wheel fixedly connected to the lead screw; a second synchronous wheel installed on the second driving member; and a synchronous belt, with both ends respectively sleeved on the first synchronous wheel and the second synchronous wheel.

[0015] Furthermore, the high-strength fire damper also includes: a hand wheel fixedly connected to the lead screw.

[0016] The beneficial effect of the present application is that it provides a high-strength fire damper that is particularly easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture:

[0020] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0021] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the framework;

[0022] Figure 3 yes Figure 2The enlarged view of part A mainly shows the structure of the driving block and the limit block;

[0023] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first driving member;

[0024] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the transmission member;

[0025] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the mounting plate and the limiting groove.

[0026] Reference numerals:

[0027] 100, high-strength fire damper; 101, frame; 101a, guide groove; 101b, first slide groove; 102, first rotating shaft;

[0028] 103, valve plate; 104, fusible rod; 105, mounting plate; 105a, limiting groove; 106, connecting rod; 107, limiting block;

[0029] 107a, transmission inclined plane; 108, connecting plate; 109, first spring; 110, fixing plate; 112, lead screw; 113, first slider; 114, driving block; 114a, driving inclined plane; 115, hand wheel; 116, first synchronous wheel; 117, second synchronous wheel; 118, synchronous belt; 120, first fixing member; 121, first driving member; 122, second fixing member; 123, second driving member. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] Reference Figure 1-6 A high-strength fire damper 100 includes: a frame 101, a first rotating shaft 102, a valve disc 103, a first torsion spring, a fusible rod 104, a mounting plate 105, a first fixing member 120 for fixing the frame 101 to the upper end of the mounting plate 105, a first driving member 121 for driving the first fixing member 120, a second fixing member 122 for fixing the frame 101 to the lower end of the mounting plate 105, a second driving member 123 for driving the second fixing member 122, and a transmission member for driving the second driving member 123. The valve disc 103 adopts a double-layer structure, which has higher strength and prevents deformation of the valve disc 103. The frame 101 includes a mounting groove, and the first fixing member 120 and the first driving member 121 are located in the mounting groove.

[0036] The first rotating shaft 102 is rotatably connected to the frame 101. The valve plate 103 is fixedly connected to the first rotating shaft 102. The first torsion spring is sleeved on the first rotating shaft 102, and its two ends are respectively fixedly connected to the frame 101 and the valve plate 103. A connecting rod 106 is provided at one end of the first rotating shaft 102, and the fusible rod 104 is fixed to the connecting rod 106, and partially passes through the frame 101 and is inserted into the frame 101. Two mounting plates 105 are provided, which are respectively located at the two ends of the frame 101 and installed in the ventilation duct.

[0037] The first fixing member 120 is used to fix the frame 101 to the upper end of the mounting plate 105, and includes: a limit block 107, a connecting plate 108, and a first spring 109. The limit block 107 is horizontally slidably connected to the frame 101. Specifically, the frame 101 is provided with a guide groove 101a extending along the length direction of the frame 101, and the limit block 107 moves along the guide groove 101a. The connecting plate 108 is fixedly connected to the limit block 107. The two ends of the first spring 109 are fixedly connected to the frame 101 and the connecting plate 108, respectively. Among them, the mounting plate 105 includes a limit groove 105a, and the limit block 107 is inserted into the limit groove 105a. The second fixing member 122 has the same structure as the first fixing member 120.

[0038] The first driving member 121 is used to drive the movement of the limit block 107, and includes: a fixed plate 110, a lead screw 112, a first slider 113, a driving block 114, and a handwheel 115. The fixed plate 110 is fixedly connected to the frame 101. The lead screw 112 is rotationally connected to the fixed plate 110. The first slider 113 is horizontally slidably connected to the frame 101, and the interior of the first slider 113 is threadedly connected to the lead screw 112. The driving block 114 is fixedly connected to the first slider 113. The driving block 114 includes a driving inclined surface 114a, and the limit block 107 includes a transmission inclined surface 107a. Two fixed plates 110 are provided, and the two fixed plates 110 are respectively located at both ends of the lead screw 112. The second driving member 123 has the same structure as the first driving member 121. The handwheel 115 is fixedly connected to the lead screw 112.

[0039] The second driving member 123 has the same structure as the first driving member 121. The hand wheel 115 is rotated, and the hand wheel 115 drives the lead screw 112 of the first driving member 121 to rotate, and the first slider 113 moves along the first slide groove 101b. The lead screw 112 rotates to drive the first slider 113 to move, and the movement of the first slider 113 drives the driving block 114 to move. Under the action of the first spring 109, the transmission inclined surface 107a of the limit block 107 abuts against the driving inclined surface 114a of the driving block 114 until the limit block 107 is separated from the limit groove 105a. At the same time, the transmission member drives the lead screw 112 of the second driving member 123 to rotate, and the lead screw 112 of the second driving member 123 drives the limit block 107 of the second fixing member 122 to separate from the limit groove 105a on the lower side of the mounting plate 105, so that the frame 101 is separated from the mounting block, which is more convenient for disassembly.

[0040] The transmission member is used to drive the lead screw 112 of the second driving member 123 to rotate, and includes: a first synchronous wheel 116, a second synchronous wheel 117, and a synchronous belt 118. The first synchronous wheel 116 is fixedly connected to the lead screw 112. The second synchronous wheel 117 is fixedly connected to the lead screw 112 of the second driving member 123. Both ends of the synchronous belt 118 are respectively sleeved on the first synchronous wheel 116 and the second synchronous wheel 117.

[0041] Working process: the valve plate 103 is normally open. When the temperature inside the frame 101 reaches a certain level, the fusible rod 104 melts, and the first torsion spring rotates the first rotating shaft 102. The rotation of the first rotating shaft 102 drives the valve plate 103 to close the frame 101, thereby isolating the fire source and blocking the smoke. When maintenance is required, the hand wheel 115 is turned, and the rotation of the hand wheel 115 drives the lead screw 112 of the first driving member 121 to rotate, and the first slider 113 moves along the first sliding groove 101b. The rotation of the lead screw 112 drives the first slider 113 to move, and the movement of the first slider 113 drives the driving block 114 to move. Under the action of the first spring 109, the transmission inclined surface 107a of the limit block 107 will abut against the driving inclined surface 114a of the driving block 114 until the limit block 107 is separated from the limit groove 105a. At the same time, the lead screw 112 of the first driving member 121 will drive the first synchronous wheel 116 to rotate, and the first synchronous wheel 116 will drive the second synchronous wheel 117 to rotate through the synchronous belt 118, and the second synchronous wheel 117 will rotate the lead screw 112 of the second driving member 123. Because the second driving member 123 has the same structure as the first driving member 121, and the second fixing member 122 has the same structure as the first fixing member 120, the lead screw 112 of the second driving member 123 will eventually drive the limiting block 107 of the second fixing member 122 to disengage from the limiting groove 105a on the lower side of the mounting plate 105, thereby separating the frame 101 from the mounting block, making it easier to disassemble.

[0042] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A high-strength fire damper, comprising: A frame, a first rotating shaft and a valve plate; the first rotating shaft is rotatably connected to the frame; The valve plate is fixedly connected to the first rotating shaft; Features: The high-strength fire damper also includes: a mounting plate, located on one side of the frame; A first fixing member, used for fixing the frame to the upper end of the mounting plate; A first driving member, used to drive the first fixing member; A second fixing member is used to fix the frame to the lower end of the mounting plate; A second driving member, used to drive a second fixing member; A transmission member, used for transmission of the second driving member; The first fixing member comprises: A limit block is horizontally slidably connected to the frame; A connecting plate, fixedly connected to the limiting block; A first spring, two ends of which are fixedly connected to the frame and the connecting plate respectively; Wherein, the second fixing member has the same structure as the first fixing member; the mounting plate comprises a limiting groove; and the limiting block is inserted into the limiting groove.

2. The high-strength fire damper according to claim 1, characterized in that: The first driving member comprises: A fixing plate, fixedly connected to the frame; A lead screw, rotatably connected to the fixed plate; A first sliding block is horizontally slidably connected to the frame, and its interior is threadedly connected to the lead screw; The driving block is fixedly connected to the first sliding block.

3. The high-strength fire damper according to claim 2, characterized in that: The driving block includes a driving ramp; The limit block comprises a transmission inclined surface.

4. The high-strength fire damper according to claim 3, characterized in that: The frame is provided with a first slide groove extending along the width direction of the frame; The first sliding block moves along the first sliding groove.

5. The high-strength fire damper according to claim 4, characterized in that: The frame is provided with a guide groove extending along the length direction of the frame; The limiting block moves along the guide groove.

6. The high-strength fire damper according to claim 2, characterized in that: The fixing plates are provided with two; The two fixing plates are respectively located at two ends of the lead screw.

7. The high-strength fire damper according to claim 6, characterized in that: The second driving member has the same structure as the first driving member.

8. The high-strength fire damper according to claim 7, characterized in that: The transmission member comprises: A first synchronous wheel, fixedly connected to the lead screw; A second synchronous wheel, mounted on the second driving member; The two ends of the synchronous belt are respectively sleeved on the first synchronous wheel and the second synchronous wheel.

9. The high-strength fire damper according to claim 8, characterized in that: The high-strength fire damper also includes: The handwheel is fixedly connected to the lead screw.

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