Ventilation and heat dissipation grid for fire protection cover
By designing a ventilation and heat dissipation grille for the fireproof protective cover and adopting a composite structure of stainless steel plate and expansion sealing strip, the problem of heat dissipation difficulty of the fireproof protective cover at high temperatures is solved, achieving effective heat insulation and fire prevention as well as ventilation and heat dissipation, and ensuring the safety and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DONGBANG TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-12
Smart Images

Figure CN224345322U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat dissipation grilles, specifically, it relates to a ventilation and heat dissipation grille for a fireproof protective cover. Background Technology
[0002] While fireproof protective covers effectively isolate direct damage from flames and heat radiation, protecting the structural integrity and functional safety of internal actuators, their relatively enclosed structure makes heat dissipation difficult during long-term operation or under high-temperature conditions. Especially when high-temperature media continuously conduct heat to the actuators through the valve body, support, and stem during valve operation, the internal temperature of the cover rises rapidly. Since the fireproof protective cover is not designed for heat dissipation, its enclosed structure actually restricts airflow, causing heat to accumulate continuously inside. This can ultimately lead to performance degradation, malfunctions, or even permanent damage to the actuators due to overheating, severely impacting the safety and reliability of the system.
[0003] In view of this, this utility model is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a ventilation and heat dissipation grille for a fireproof protective cover, which solves the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A ventilation and heat dissipation grille for a fireproof protective cover includes: a connecting plate, a hollow structure extending through the center of the connecting plate, four rectangular plates fixedly connected to the first side of the connecting plate, a combined plate fixedly connected between the two inner walls of the hollow structure, an inclined plate fixedly connected below the combined plate, several straight plates connecting between the inner walls of two plates, a first expansion sealing strip fixedly connected to both sides of the straight plates, a placement plate fixedly connected to one side of the plate, and square holes extending through the opposite sides of the placement plate.
[0007] Optionally, mounting blocks are fixedly connected to both sides of the straight plate, and through holes adapted to the mounting blocks are opened on the opposite sides of the two first opposite plates.
[0008] Optionally, a second expansion sealing strip is fixedly connected to the inner wall of each of the two second opposite sides.
[0009] Optionally, an air passage is left between every two adjacent straight plates, and the straight plates and the slanted plates are perpendicular to each other.
[0010] Optionally, rounded corners are provided at the joints between every two adjacent plates.
[0011] Optionally, the four corners of both the connecting plate and the placement plate are rounded.
[0012] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:
[0013] The ventilation and heat dissipation grille for the fireproof protective cover described in this utility model is made of a composite structure of stainless steel plate and fire-resistant expansion sealing strip. It not only possesses excellent mechanical strength and corrosion resistance but also incorporates intelligent response characteristics to fire environments. When the external temperature rises and reaches the critical temperature set by the fire-resistant expansion sealing strip, the expansion material inside the sealing strip rapidly undergoes a volume expansion reaction, forming a tightly sealed barrier layer. This expansion structure can automatically seal the ventilation and heat dissipation grille's ventilation channels, effectively blocking the intrusion paths of external flames, heat radiation, and toxic fumes, thereby constructing a heat-insulating and fire-resistant barrier in the first instance, protecting the actuators inside the cover from further damage.
[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0016] Figure 1 This is one of the exploded structural diagrams of a heat dissipation grille;
[0017] Figure 2 This is the second schematic diagram of the exploded structure of the heat dissipation grille;
[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the plate assembly;
[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the heat dissipation grille.
[0020] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings.
[0022] Please see Figure 1-4As shown, this embodiment provides a ventilation and heat dissipation grille for a fireproof protective cover, including a connecting plate 1. A hollow structure is formed through the center of the connecting plate 1. Four rectangular plates 2 are fixedly connected to the first side of the connecting plate 1. A combination plate 3 is fixedly connected between the two inner walls of the hollow structure. An inclined plate 4 is fixedly connected below the combination plate 3. Several straight plates 5 are connected between the inner walls of two plates 2. A first expansion sealing strip 6 is fixedly connected to both sides of the straight plate 5. A placement plate 11 is fixedly connected to one side of the plate 2. Square holes 7 are formed through the opposite sides of the placement plate 11. The main body structure adopts a design of a centrally hollow connecting plate 1 combined with four rectangular plates 2, which helps to form a stable and unobstructed ventilation channel, facilitating the centralized guidance and exhaust of hot air. The hollow internal connecting plate 1 enhances the overall structural stability, while the inclined plate 4 below guides the heat flow in a certain direction to prevent heat stagnation. Multiple straight plates 5 are set between the plates 2, forming heat dissipation channels while withstanding certain external forces. The first expansion sealing strips 6 on both sides of the straight plates 5 automatically expand when exposed to high temperatures, quickly sealing the channels and thus playing a role in fire prevention and heat insulation.
[0023] In this embodiment, mounting blocks 9 are fixedly connected to both sides of the straight plate 5, and through holes 8 adapted to the mounting blocks 9 are opened on the opposite sides of the two first opposite plates 2. By setting mounting blocks 9 on both sides of the straight plate 5 and opening through holes 8 adapted to them on the first opposite plates 2, the installation and disassembly of the straight plate 5 are more convenient and flexible, which is beneficial for later maintenance, replacement or cleaning. At the same time, the structure of the mounting blocks 9 and the through holes 8 can enhance the connection strength and improve the stability and vibration resistance of the entire ventilation and heat dissipation grille during use.
[0024] In this embodiment, a second expansion sealing strip 10 is fixedly connected to the inner walls of both second opposite sides. The second expansion sealing strip 10 on the inner walls of the second opposite sides ensures that in the event of high temperature or fire, not only the front of the grille can be sealed by the first expansion sealing strip 6, but the sides of the grille can also respond simultaneously, achieving multiple sealing and comprehensively preventing flames, heat flow, and smoke from entering the enclosure, thereby improving the overall sealing performance and safety reliability of the fire protection system.
[0025] In this embodiment, there is an air passage space between every two adjacent straight plates 5, and the straight plates 5 and the inclined plates 4 are perpendicular to each other.
[0026] In this embodiment, rounded corners are provided at the connection between every two adjacent plates 2. Air gaps are maintained between the straight plates 5, and the straight plates 5 and the inclined plates 4 are arranged perpendicularly, allowing air to convect freely along the channels and improving heat dissipation efficiency. This rational spatial arrangement not only enhances air circulation but also prevents airflow turbulence caused by improper arrangement, improves overall heat dissipation performance, effectively reduces the temperature inside the enclosure, and ensures normal equipment operation.
[0027] In this embodiment, the four corners of the connecting plate 1 and the placement plate 11 are all rounded. The rounded corners between every two adjacent plates 2 effectively avoid stress concentration at sharp corners, improving the overall mechanical stability and impact resistance of the grille. Simultaneously, the rounded corners also reduce processing difficulty and the risk of cracks at welds or joints, making it safer and more reliable during long-term high-temperature or high-load use.
[0028] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A ventilation and heat dissipation grille for a fireproof protective cover, characterized in that, include: A connecting plate (1) has a hollow structure through the center of the connecting plate (1). Four rectangular plates (2) are fixedly connected to the first side of the connecting plate (1). A combination plate (3) is fixedly connected between the two inner walls of the hollow structure. An inclined plate (4) is fixedly connected below the combination plate (3). Several straight plates (5) are connected between the inner walls of the two plates (2). A first expansion sealing strip (6) is fixedly connected to both sides of the straight plate (5). A placement plate (11) is fixedly connected to one side of the plate (2). A grid hole (7) is through the opposite side of the placement plate (11).
2. The ventilation and heat dissipation grille for a fireproof protective cover according to claim 1, characterized in that, Mounting blocks (9) are fixedly connected to both sides of the straight plate (5), and through holes (8) adapted to the mounting blocks (9) are opened on the opposite sides of the two first opposite plates (2).
3. The ventilation and heat dissipation grille for a fireproof protective cover according to claim 1, characterized in that, A second expansion sealing strip (10) is fixedly connected to the inner wall of each of the two second opposite sides.
4. A ventilation and heat dissipation grille for a fireproof protective cover according to claim 1, characterized in that, There is an air passage between each pair of adjacent straight plates (5), and the straight plates (5) and the inclined plates (4) are perpendicular to each other.
5. A ventilation and heat dissipation grille for a fireproof protective cover according to claim 1, characterized in that, A rounded corner is provided at the connection between every two adjacent plates (2).
6. A ventilation and heat dissipation grille for a fireproof protective cover according to claim 1, characterized in that, The four corners of the connecting plate (1) and the placement plate (11) are all rounded.