Fire and sound proofing cover for a boiler burner

CN224622906UActive Publication Date: 2026-08-11WUHAN BOSAI ENVIRONMENTAL ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

[0002]锅炉燃烧器是燃油燃气锅炉的核心配套辅机,主要分为燃油、燃气及双燃料类型,其在运行过程中会产生高强度噪音,长期暴露会损害工作人员耳蜗毛细胞,导致不可逆听力损伤,为降低噪音危害,通常会在锅炉燃烧器外安装专用的防火隔音罩,目前,现有的防火隔音罩多数采用多个螺栓固定,不仅初始安装时操作繁琐,后续需要对锅炉燃烧器进行检修时,需先逐一拆卸紧固件再移开防火隔音罩,整个过程步骤多、耗时长,既增加工作人员检修负担,又降低了检修效率

Benefits of technology

[0016] This utility model utilizes a combination of a base plate, a support plate, a top plate, a fireproof and soundproof cover body, connecting plates, a fixing base, and a snap-fit ​​mechanism. The connecting plates on both sides of the fireproof and soundproof cover body can be directly inserted into the bottom of the top plate for quick initial positioning and snap-fit, laying the foundation for subsequent fixation. Then, with the help of the snap-fit ​​mechanism in the fixing base, the inserted connecting plates can be quickly snapped and limited, ensuring the stable installation of the fireproof and soundproof cover body and fully exerting its fireproof and soundproof protection function for the boiler burner. At the same time, when the boiler burner needs to be inspected, this snap-fit ​​mechanism eliminates the need to disassemble multiple bolts one by one as in traditional structures, and can quickly release the limiting snap-fit ​​of the connecting plates, easily completing the disassembly and assembly of the fireproof and soundproof cover body. This greatly simplifies the operation steps, shortens the maintenance time, reduces the maintenance burden on workers, and significantly improves maintenance efficiency.

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Abstract

This utility model discloses a fireproof and soundproof cover for a boiler burner, including a base plate with support plates fixedly installed on both sides of the base plate, a top plate fixedly installed on the opposite side of the two sets of support plates, both sets of top plates being located on top of the base plate, a fireproof and soundproof cover body, and connecting plates fixedly installed on both sides of the fireproof and soundproof cover body. A fixing seat is fixedly installed on the top of each of the two sets of top plates, and each of the two fixing seats has a locking mechanism for quickly engaging the connecting plates. Through the coordinated arrangement of the base plate, support plates, top plates, fireproof and soundproof cover body, connecting plates, fixing seats, and locking mechanisms, this utility model allows for quick release of the locking mechanism from the connecting plates when the boiler burner needs maintenance, easily completing the disassembly and assembly of the fireproof and soundproof cover body. This simplifies the operation steps, shortens maintenance time, and significantly improves maintenance efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of boiler burner technology, specifically a fireproof and soundproof cover for boiler burners. Background Technology

[0002] Boiler burners are core auxiliary equipment for oil and gas boilers, mainly divided into oil, gas, and dual-fuel types. During operation, they generate high-intensity noise, and long-term exposure can damage the hair cells of the cochlea of ​​workers, leading to irreversible hearing loss. To reduce noise hazards, a special fireproof and soundproof cover is usually installed on the outside of the boiler burner. Currently, most existing fireproof and soundproof covers are fixed with multiple bolts, which is not only cumbersome to operate during the initial installation, but also requires disassembling the fasteners one by one and removing the fireproof and soundproof cover when the boiler burner needs to be inspected. The whole process is complicated and time-consuming, which increases the maintenance burden on workers and reduces maintenance efficiency.

[0003] As disclosed in the prior art, Chinese utility model publication CN213872765U discloses a fireproof and soundproof cover for boiler burners. This utility model includes a soundproof cover body and a base. The bottom of the soundproof cover body is open, and the base is located at the bottom of the soundproof cover body. The soundproof cover body includes an outer shell, an inner shell, a fireproof layer, and a sound insulation layer. The outer shell is fitted over the outer shell. The burner is fixed on the base. Connecting parts are provided on both sides of the outer shell body. The connecting parts are connected to the base by pins. Multiple pins are evenly arranged along the connecting parts. In the above structure, the soundproof cover body and the base are rigidly fixed by multiple pins. Not only is the initial installation cumbersome, but when actually repairing the boiler burner, all pins must be completely removed and the soundproof cover body must be removed. The operation steps are cumbersome and time-consuming, which means that the fireproof and soundproof cover has the problem of cumbersome installation and disassembly mentioned above. Therefore, we need to propose a fireproof and soundproof cover for boiler burners. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof and soundproof cover for boiler burners. Through the setting of the snap-fit ​​mechanism, the fireproof and soundproof cover body can be quickly snapped on and disassembled, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A fireproof and soundproof cover for a boiler burner includes: a base plate, with support plates fixedly installed on both sides of the base plate, and top plates fixedly installed on opposite sides of the two sets of support plates, with both sets of top plates located on top of the base plate; a fireproof and soundproof cover body, located on top of the base plate, with connecting plates fixedly installed on both sides of the fireproof and soundproof cover body, with two sets of connecting plates located at the bottom of two sets of top plates, and fixing seats fixedly installed on the top of the two sets of top plates, with a locking mechanism for quick locking of the connecting plates provided inside the two sets of fixing seats.

[0007] Preferably, the locking mechanism includes an adjusting plate, a threaded rod, a movable plate, two sets of locking blocks, two sets of first through slots, two sets of second through slots, and two sets of third through slots; the threaded rod is rotatably installed inside the fixed seat, and the top end of the threaded rod passes through the fixed seat and is fixedly connected to the bottom of the adjusting plate; the movable plate is threadedly connected to the outside of the threaded rod; the two sets of locking blocks are symmetrically fixedly installed at the bottom of the movable plate; the top plate has two sets of first through slots inside; the connecting plate has two sets of second through slots inside; and the bottom of the fixed seat has two sets of third through slots for the locking blocks to pass through and move.

[0008] Preferably, the top of the base plate has multiple sets of snap-fit ​​slots for snap-fit ​​blocks to snap into, and the multiple sets of snap-fit ​​slots are arranged in a rectangular array.

[0009] Preferably, sliders are fixedly installed on both sides of the movable plate, and two sets of sliding grooves are respectively opened on both sides of the fixed base for the sliders to slide.

[0010] Preferably, it also includes a limiting mechanism to prevent accidental rotation of the threaded rod, and the limiting mechanism is located on the top of the fixed base.

[0011] Preferably, the limiting mechanism includes a U-shaped frame, a positioning hole, a fixing plate, a limiting rod, a pull plate, a limiting hole, and a return spring;

[0012] The C-shaped frame is fixedly installed on the top of the fixed base, and a positioning hole for inserting the limiting rod is provided on the inner bottom of the C-shaped frame. The limiting rod is slidably disposed on the inner top of the C-shaped frame, and the top end of the limiting rod passes through the C-shaped frame and is fixedly connected to the bottom of the pull plate. The fixed plate is fixedly installed on the outside of the limiting rod, and the return spring is sleeved on the outside of the limiting rod. A limiting hole for inserting the limiting rod is provided inside the adjusting plate.

[0013] Preferably, the top end of the return spring is mounted on the inner top of the U-shaped frame, and the bottom end of the return spring abuts against the top of the fixing plate.

[0014] Preferably, two sets of guide rods are symmetrically fixedly installed on the top of the fixed plate. Both sets of guide rods are slidably disposed on the inner top of the C-shaped frame, and the top ends of both sets of guide rods are fixedly connected to the bottom of the pull plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model utilizes a combination of a base plate, a support plate, a top plate, a fireproof and soundproof cover body, connecting plates, a fixing base, and a snap-fit ​​mechanism. The connecting plates on both sides of the fireproof and soundproof cover body can be directly inserted into the bottom of the top plate for quick initial positioning and snap-fit, laying the foundation for subsequent fixation. Then, with the help of the snap-fit ​​mechanism in the fixing base, the inserted connecting plates can be quickly snapped and limited, ensuring the stable installation of the fireproof and soundproof cover body and fully exerting its fireproof and soundproof protection function for the boiler burner. At the same time, when the boiler burner needs to be inspected, this snap-fit ​​mechanism eliminates the need to disassemble multiple bolts one by one as in traditional structures, and can quickly release the limiting snap-fit ​​of the connecting plates, easily completing the disassembly and assembly of the fireproof and soundproof cover body. This greatly simplifies the operation steps, shortens the maintenance time, reduces the maintenance burden on workers, and significantly improves maintenance efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the snap-fit ​​mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the fixing base of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Base plate; 2. Support plate; 3. Top plate; 4. Fireproof and soundproof cover body; 5. Connecting plate; 6. Fixing seat; 7. Snap-fit ​​mechanism; 71. Adjusting plate; 72. Threaded rod; 73. Moving plate; 74. Snap-fit ​​block; 75. First through groove; 76. Second through groove; 77. Third through groove; 8. Snap-fit ​​groove; 9. Sliding block; 10. Sliding groove; 11. Limiting mechanism; 111. C-shaped frame; 112. Fixing plate; 113. Limiting rod; 114. Pull plate; 115. Limiting hole; 116. Return spring; 117. Positioning hole; 12. Guide rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A fireproof and soundproof cover for a boiler burner includes: a base plate 1, with support plates 2 fixedly installed on both sides of the base plate 1, and top plates 3 fixedly installed on opposite sides of the two sets of support plates 2, with both sets of top plates 3 located on the top of the base plate 1; a fireproof and soundproof cover body 4, located on the top of the base plate 1, with connecting plates 5 fixedly installed on both sides of the fireproof and soundproof cover body 4, with two sets of connecting plates 5 located at the bottom of the two sets of top plates 3, and fixing seats 6 fixedly installed on the top of the two sets of top plates 3, with a snap-fit ​​mechanism 7 for quickly snapping the connecting plates 5 inside the two sets of fixing seats 6.

[0025] In this embodiment, the basic installation frame formed by the base plate 1, the support plate 2, and the top plate 3 provides stable load-bearing and precise positioning support for the fireproof and soundproof cover body 4, while providing a reliable installation foundation for the boiler burner, ensuring that the burner is stably placed inside the fireproof and soundproof cover body 4. The fireproof and soundproof cover body 4 is initially positioned by the connection plates 5 on both sides and the top plate 3, and is quickly snapped together with the snap-fit ​​mechanism 7 in the fixing seat 6, replacing the traditional multi-point bolt fixing method. This not only ensures the fireproof and soundproof protection effect of the fireproof and soundproof cover body 4 on the burner, but also realizes the quick disassembly and assembly of the cover, greatly simplifying the maintenance operation, reducing the burden on the staff, and taking into account both protective stability and maintenance convenience.

[0026] The locking mechanism 7 includes an adjusting plate 71, a threaded rod 72, a movable plate 73, two sets of locking blocks 74, two sets of first through slots 75, two sets of second through slots 76, and two sets of third through slots 77. The threaded rod 72 is rotatably installed inside the fixed base 6, and the top end of the threaded rod 72 passes through the fixed base 6 and is fixedly connected to the bottom of the adjusting plate 71. The movable plate 73 is threadedly connected to the outside of the threaded rod 72. The two sets of locking blocks 74 are symmetrically fixedly installed at the bottom of the movable plate 73. The top plate 3 has two sets of first through slots 75 inside, the connecting plate 5 has two sets of second through slots 76 inside, and the bottom of the fixed base 6 has two sets of third through slots 77 for the locking blocks 74 to pass through and move.

[0027] Through the transmission cooperation between the adjusting disc 71 and the threaded rod 72, simply rotating the adjusting disc 71 can drive the locking block 74 to move, thereby fixing or unlocking the fireproof and soundproof cover body 4. Unlike the traditional method of disassembling and installing bolts one by one, this greatly simplifies the operation process, reduces the difficulty of operation, and significantly improves the efficiency of disassembly and assembly. At the same time, the first through groove 75 of the top plate 3, the second through groove 76 of the connecting plate 5, and the third through groove 77 of the fixing seat 6 work together to provide a clear movement path for the locking block 74, ensuring that the locking block 74 accurately penetrates each component and achieves the limit. The two sets of locking blocks 74 are symmetrically arranged, which can apply a fixing force to the connecting plate 5 from both sides simultaneously, effectively preventing the fireproof and soundproof cover body 4 from shifting after installation and ensuring the stability of the overall structure.

[0028] The top of the base plate 1 has multiple sets of card slots 8 for the card block 74 to be engaged, and the multiple sets of card slots 8 are arranged in a rectangular array.

[0029] Specifically, the multiple sets of snap-fit ​​grooves 8 on the top of the base plate 1 can be adapted to snap-fit ​​blocks 74 of the snap-fit ​​mechanism 7, which further strengthens the connection strength between the fireproof and soundproof cover body 4 and the base plate 1, prevents the cover from shifting due to vibration during burner operation, and improves the overall structural stability.

[0030] Slider 9 is fixedly installed on both sides of the movable plate 73, and two sets of sliding grooves 10 are opened on both sides inside the fixed base 6 for the slider 9 to slide.

[0031] The sliders 9 on both sides of the movable plate 73 and the sliding grooves 10 inside the fixed base 6 form a sliding fit, providing precise guidance for the vertical movement of the movable plate 73, effectively preventing the movable plate 73 from rotating synchronously with the threaded rod 72, ensuring that the movable plate 73 can stably drive the locking block 74 to move along the preset path, and improving the reliability of locking and unlocking.

[0032] It also includes a limiting mechanism 11 to prevent the threaded rod 72 from rotating accidentally, and the limiting mechanism 11 is located on the top of the fixed base 6.

[0033] Specifically, the limiting mechanism 11 can directly restrict the accidental rotation of the threaded rod 72, preventing the threaded rod 72 from rotating due to vibration, external force contact, or other factors during burner operation, thereby preventing the locking mechanism 7 from loosening, ensuring the protective stability of the fireproof and soundproof cover body 4 during long-term use, and improving the safety of equipment operation.

[0034] The limiting mechanism 11 includes a C-shaped frame 111, a positioning hole 117, a fixing plate 112, a limiting rod 113, a pull plate 114, a limiting hole 115, and a return spring 116. The C-shaped frame 111 is fixedly installed on the top of the fixing base 6, and the inner bottom of the C-shaped frame 111 is provided with a positioning hole 117 for the limiting rod 113 to be inserted. The limiting rod 113 is slidably disposed on the inner top of the C-shaped frame 111, and the top end of the limiting rod 113 passes through the C-shaped frame 111 and is fixedly connected to the bottom of the pull plate 114. The fixing plate 112 is fixedly installed on the outer side of the limiting rod 113. The return spring 116 is sleeved on the outer side of the limiting rod 113. The inside of the adjusting plate 71 is provided with a limiting hole 115 for the limiting rod 113 to be inserted.

[0035] In a further preferred embodiment, the U-shaped frame 111 provides a stable mounting base for the limiting mechanism 11. The positioning hole 117 inside the frame helps the limiting rod 113 to accurately align with the limiting hole 115 of the adjusting plate 71, preventing the limiting rod 113 from shifting and causing limiting failure. The limiting rod 113 can be easily moved up and down by the pull plate 114. Pulling the pull plate 114 upwards can quickly release the connection between the limiting rod 113 and the limiting hole 115 of the adjusting plate 71, thus releasing the rotation of the adjusting plate 71. When the pull plate 114 is released, the return spring 116 can automatically push the fixing plate 112 and the limiting rod 113 downward, so that the limiting rod 113 can be inserted into the positioning hole 117 and the limiting hole 115 of the adjusting plate 71 at the same time. This not only achieves reliable limiting of the adjusting plate 71 and prevents the locking mechanism 7 from loosening due to accidental rotation, ensuring the stable installation of the fireproof and soundproof cover body 4, but also eliminates the need for complicated operations and does not affect the disassembly and assembly efficiency of the fireproof and soundproof cover body 4, thus balancing the reliability of the limiting and the convenience of operation.

[0036] The top end of the return spring 116 is installed on the inner top of the bracket 111, and the bottom end of the return spring 116 is pressed against the top of the fixing plate 112.

[0037] The clearly defined installation position of the return spring 116 (connected to the top bracket 111 and the bottom abutting the fixing plate 112) ensures that it is always in a stable pre-compression state, providing continuous and uniform downward pressure to the limit rod 113. This ensures that the limit rod 113 is tightly inserted into the limit hole 115 of the adjustment plate 71, avoiding limit failure due to insufficient spring force or uneven force. At the same time, the stable spring force output also allows the limit rod 113 to quickly reset after unlocking, improving the response speed and reliability of the limit mechanism 11.

[0038] Two sets of guide rods 12 are symmetrically fixedly installed on the top of the fixed plate 112. Both sets of guide rods 12 are slidably set on the inner top of the C-shaped frame 111, and the top ends of both sets of guide rods 12 are fixedly connected to the bottom of the pull plate 114.

[0039] Among them, the two sets of guide rods 12 at the top of the fixed plate 112 are slidably engaged with the shaped frame 111, providing auxiliary guidance for the vertical movement of the limit rod 113 and the pull plate 114, effectively preventing the limit rod 113 from deviating or tilting during the sliding process, ensuring that the limit rod 113 can be accurately aligned with the limit hole 115 of the adjustment plate 71, and improving the accuracy of the limit operation.

[0040] Working principle: When using this utility model, the installation process is as follows: The connecting plates 5 on both sides of the fireproof and soundproof cover body 4 are respectively attached to the bottom of the two sets of top plates 3 and pushed in, so that the fireproof and soundproof cover body 4 is initially snapped into the top of the bottom plate 1. Then, the pull plate 114 is pulled upward, and the pull plate 114 drives the limit rod 113 to move upward and disengage from the limit hole 115 of the adjustment plate 71. At the same time, the reset spring 116 is compressed to release the rotation restriction of the adjustment plate 71.

[0041] Next, rotate the adjusting plate 71 on the top of the fixed base 6, which will drive the threaded rod 72 to rotate inside the fixed base 6. Since the moving plate 73 is threadedly connected to the threaded rod 72, and the sliders 9 on both sides slide along the sliding groove 10 of the fixed base 6, the rotation of the threaded rod 72 will drive the moving plate 73 to move down, which will drive the two sets of snap-fit ​​blocks 74 at the bottom to pass through the third through groove 77 of the fixed base 6, the first through groove 75 of the top plate 3, and the second through groove 76 of the connecting plate 5 in sequence, and finally snap into the snap-fit ​​groove 8 on the bottom plate 1. Finally, release the pull plate 114, and the return spring 116 in the limiting mechanism 11 will regain its elasticity, pushing the fixed plate 112 and the limiting rod 113 to move down, so that the limiting rod 113 passes through the limiting hole 115 of the adjusting plate 71 and is inserted into the positioning hole 117 on the bracket 111, thereby limiting the accidental rotation of the adjusting plate 71. The snap-fit ​​mechanism 7 on the other side is operated in the same way, so that the fireproof and soundproof cover body 4 can be installed quickly and stably.

[0042] During maintenance, first pull the pull plate 114 upwards, causing the limit rod 113 to move upwards and disengage from the limit hole 115 of the adjustment plate 71. At the same time, compress the reset spring 116 to release the rotation restriction on the adjustment plate 71. Then, rotate the adjustment plate 71 in the opposite direction to drive the threaded rod 72 to rotate in the opposite direction, causing the moving plate 73 to move the locking block 74 upwards, sequentially disengaging from the locking groove 8 of the base plate 1, the second through groove 76 of the connecting plate 5, and the first through groove 75 of the top plate 3, and finally retracting into the fixed seat 6 to release the restriction on the connecting plate 5. After unlocking the locking mechanism 7 on the other side in the same way, the fireproof and soundproof cover body 4 can be directly pulled out from the top of the base plate 1 to complete the quick disassembly.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire and sound shield for a boiler burner, comprising: include: A base plate (1) is provided, and support plates (2) are fixedly installed on both sides of the base plate (1). Top plates (3) are fixedly installed on the opposite side of the two sets of support plates (2). Both sets of top plates (3) are located on the top of the base plate (1). Fireproof and soundproof cover body (4), the fireproof and soundproof cover body (4) is set on the top of the base plate (1), and connecting plates (5) are fixedly installed on both sides of the fireproof and soundproof cover body (4). The two sets of connecting plates (5) are respectively set at the bottom of the two sets of top plates (3). The top of the two sets of top plates (3) are respectively fixedly installed with fixing seats (6), and the interior of the two sets of fixing seats (6) is respectively provided with a snap-fit ​​mechanism (7) for quick snap-fit ​​of the connecting plates (5).

2. A fire and sound shield for a boiler burner as defined in claim 1, wherein: The snap-fit ​​mechanism (7) includes an adjusting plate (71), a threaded rod (72), a moving plate (73), two sets of snap-fit ​​blocks (74), two sets of first through slots (75), two sets of second through slots (76) and two sets of third through slots (77); The threaded rod (72) is rotatably installed inside the fixed seat (6), and the top end of the threaded rod (72) passes through the fixed seat (6) and is fixedly connected to the bottom of the adjusting plate (71). The moving plate (73) is threadedly connected to the outside of the threaded rod (72). Two sets of the snap-fit ​​blocks (74) are symmetrically fixedly installed at the bottom of the moving plate (73). The top plate (3) has two sets of first through slots (75) inside, the connecting plate (5) has two sets of second through slots (76) inside, and the bottom of the fixed seat (6) has two sets of third through slots (77) for the snap-fit ​​blocks (74) to pass through and move.

3. A fire and sound shield for a boiler burner as defined in claim 2, wherein: The top of the base plate (1) is provided with multiple sets of snap-fit ​​slots (8) for snap-fit ​​blocks (74) to snap-fit, and the multiple sets of snap-fit ​​slots (8) are arranged in a rectangular array.

4. A fire and sound shield for a boiler burner as defined in claim 3, wherein: The movable plate (73) is fixedly installed with sliders (9) on both sides, and the fixed base (6) has two sets of sliding grooves (10) on both sides for the sliders (9) to slide.

5. A fire and sound shield for a boiler burner as defined in claim 4, wherein: It also includes a limiting mechanism (11) to prevent the threaded rod (72) from rotating accidentally, and the limiting mechanism (11) is located on the top of the fixed seat (6).

6. A fire and sound shield for a boiler burner as defined in claim 5, wherein: The limiting mechanism (11) includes a U-shaped frame (111), a positioning hole (117), a fixing plate (112), a limiting rod (113), a pull plate (114), a limiting hole (115), and a return spring (116); The convex frame (111) is fixedly installed on the top of the fixed base (6), and the inner bottom of the convex frame (111) is provided with a positioning hole (117) for the insertion of the limiting rod (113). The limiting rod (113) is slidably disposed on the inner top of the convex frame (111), and the top end of the limiting rod (113) passes through the convex frame (111) and is fixedly connected to the bottom of the pull plate (114). The fixed plate (112) is fixedly installed on the outside of the limiting rod (113). The return spring (116) is sleeved on the outside of the limiting rod (113). The inside of the adjusting plate (71) is provided with a limiting hole (115) for the insertion of the limiting rod (113).

7. A fire and sound shield for a boiler burner as defined in claim 6, wherein: The top end of the reset spring (116) is mounted on the inner top of the L-shaped frame (111), and the bottom end of the reset spring (116) is abutted against the top of the fixed plate (112).

8. A fire and sound shield for a boiler burner as defined in claim 7, wherein: The top of the fixed plate (112) is symmetrically provided with two groups of guide rods (12), both groups of the guide rods (12) are slidingly arranged on the inner top of the L-shaped frame (111), and the top end of each group of the guide rods (12) is fixedly connected with the bottom of the pull plate (114).

Citation Information

Patent Citations

  • Fireproof and soundproof cover special for boiler burner

    CN213872765U