A back fireproof brick mounting structure of a fireplace

CN224718824UActive Publication Date: 2026-09-04NINGBO XINBAOLE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202522194261.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-04
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

[0003]如检索到一篇公告号为CN221005132U的中国专利文件,其专利名称为一种壁炉内防火砖的固定结构,参照其附图1,炉膛包括前面的炉门12,两侧的防火砖2和背面的防火砖2,其两侧的防火砖2采用外部螺钉连接的角铁进行固定;但是背面的防火砖2依旧需要用户在炉体内部接触螺丝刀进行螺钉的前后固定,由于炉体内部空间狭小,员工需要件螺钉在炉膛内对准位置,然后在炉膛内部操作螺丝刀的旋拧,操作难度依旧较大;

Benefits of technology

不需要截止螺丝刀等工具,采用插板插入后卡合的方式使得背面防火砖简单的安装在炉膛内。

✦ Generated by Eureka AI based on patent content.

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    Figure CN224718824U_ABST
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Abstract

The utility model discloses a back fireproof brick mounting structure of fireplace, and its technical scheme main points are including: the supporting plate is fixed in hearth, and is used for lifting back fireproof brick, the back plate is located the back of hearth, the feed pipe is through the back plate and is inserted into hearth, the front clamping plate is fixed in the upper end of feed pipe portion in hearth, and the front clamping plate and back plate are arranged back and forth, the first fireproof brick and the second fireproof brick are located in the left and right sides of feed pipe, and the first fireproof brick and the second fireproof brick are spliced and form back fireproof brick on the both sides of feed pipe, and back fireproof brick is located between the front clamping plate and back plate, the plug -in board is vertically inserted between back fireproof brick and front clamping plate and makes both front and rear clamping, the both ends of plug -in board are equipped with baffle, and baffle is located in the both sides of feed pipe, adopts the mode that plug -in board inserts and clamps after to make back fireproof brick simple installation in hearth, and need not cutting screwdriver and other tools.
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Description

Technical Field

[0001] This utility model relates to combustion fireplaces, and more specifically, to a fireproof brick mounting structure on the back of a fireplace. Background Technology

[0002] Fireplaces require the burning of wood or fuel pellets, so fireproof bricks are placed inside the fireplace.

[0003] If a Chinese patent document with publication number CN221005132U is found, its patent title is "A Fixing Structure for Fireproof Bricks Inside a Fireplace," refer to its appendix. Figure 1 The furnace chamber includes the front furnace door 12, the fireproof bricks 2 on both sides and the fireproof bricks 2 on the back. The fireproof bricks 2 on both sides are fixed with angle iron connected by external screws; however, the fireproof bricks 2 on the back still require the user to use a screwdriver inside the furnace to fix the screws. Due to the small space inside the furnace, the staff needs to align the screws in the furnace chamber and then operate the screwdriver to tighten them inside the furnace chamber, which is still quite difficult. Therefore, a back-mounted fireproof brick installation structure that does not require installation tools is needed to reduce the installation difficulty of fixing it at the front and back. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof brick installation structure for the back of a fireplace. The method of inserting a plate and engaging it makes it relatively simple to install the fireproof bricks in the furnace from the front and back, without the need for tools such as screwdrivers.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A fireproof brick mounting structure for the back of a fireplace includes: a support plate fixed inside the furnace chamber and used to support the fireproof brick; a back plate located at the back of the furnace chamber; a feed pipe extending through the back plate into the furnace chamber; a front clamping plate fixed to the upper end of the portion of the feed pipe inside the furnace chamber, the front clamping plate and the back plate being arranged front and back; and fireproof bricks No. 1 and No. 2 located on the left and right sides of the feed pipe, the fireproof bricks No. 1 and No. 2 being spliced ​​together on both sides of the feed pipe to form the fireproof brick, the fireproof brick being located between the front clamping plate and the back plate. A vertical insert plate is inserted between the fireproof brick on the back and the front clamping plate to lock them together; baffles are provided at both ends of the insert plate, and the baffles are located on both sides of the feed pipe.

[0006] Preferably, the upper end of the insert plate is fixed with a lifting plate that bends outward toward the furnace.

[0007] Preferably, the front plate is arranged at an angle relative to the back plate, and the distance between the two gradually decreases from top to bottom.

[0008] Preferably, the upper end of the front plate is fixed with a guide plate that is inclined outward from the furnace, and the distance between the upper end of the guide plate and the back plate is greater than the distance between the front plate and the back plate.

[0009] Preferably, a clearance opening is provided between the No. 1 fireproof brick and the No. 2 fireproof brick, and the feed pipe is inserted into the clearance opening.

[0010] Preferably, the joint between the No. 1 fireproof brick and the No. 2 fireproof brick is set with an L-shaped edge, and the L-shaped edges of the two fireproof bricks are joined together to form an L-shaped splice seam.

[0011] Preferably, the L-shaped seam is located above and / or below the clearance opening.

[0012] Preferably, the pallet is fixed to the side of the furnace chamber, and the pallet is bent into an L-shape, with the long side of the L-shaped pallet located on the side of the furnace chamber and the short side of the L-shaped pallet located on the back of the furnace chamber.

[0013] In summary, this utility model has at least one of the following beneficial effects: No tools such as screwdrivers are needed; the fireproof bricks on the back are easily installed inside the furnace by inserting a plate and snapping it in place. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the fireproof brick on the back being located in the furnace chamber in the embodiment; Figure 2 This is a schematic diagram of the engagement of the fireproof brick on the back and the insert plate in the embodiment; Figure 3 This is an exploded view of the insert plate, the fireproof brick on the back, and the back plate in the embodiment; Figure 4 This is a schematic diagram of the fireproof brick on the back of the fireplace in the embodiment; Figure 5 This is a schematic diagram showing the spacing between the front plate, guide plate, and back plate in the embodiment.

[0015] In the picture: 1. Pallet; 21. Back panel; 22. Side panel; 3. Feed pipe; 4. Front clamping plate; 41. Guide plate; 51. No. 1 fireproof brick; 52. No. 2 fireproof brick; 53. Clearance opening; 54. L-shaped edge; 6. Insert plate; 61. Baffle; 62. Lifting plate. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0017] Example 1: A fireproof brick mounting structure for the back of a fireplace, referring to... Figure 1 It includes a side plate 22 and a back plate 21. The back plate 21 and the side plate 22 can be fixed by welding or formed by bending a single plate. The side plate 22 is located on the side of the furnace and the back plate 21 is located on the back of the furnace.

[0018] Reference Figure 1 and Figure 3 A support plate 1 is fixed on the side plate 22, and a lower folding plate is fixed below the support plate 1. The lower folding plate is fixed to the side plate 22 by screws.

[0019] The support plate 1 is bent into an L-shape, with its long side located on the side of the furnace and its short side located on the back of the furnace. The support plate 1 provides vertical support for the fireproof bricks on the side plate 22 and the fireproof bricks on the back of the furnace. There are two support plates 1, which are fixed to the side plates 22 on both sides respectively. Therefore, the two side plates 22 provide vertical support for the No. 1 fireproof brick 51 and the No. 2 fireproof brick 52 respectively.

[0020] The special L-shaped structure of the support plate 1 allows the fireproof bricks on the side and the fireproof bricks on the back to share the support plate 1, reducing the number of support plates 1 to install. Furthermore, the support plate 1 can be fixed to the side plate 22 before the fireplace is assembled.

[0021] Reference Figure 3 The back plate 21 is located on the back of the furnace; the feed pipe 3 extends into the furnace through the back plate 21; the feed pipe 3 feeds the combustion particles into the furnace, and the feed pipe 3 can be sealed and fixed by welding at the position where it penetrates the back plate 21.

[0022] Reference Figure 2 and Figure 5 The front clamping plate 4 is welded and fixed to the upper end of the feed pipe 3 located inside the furnace. The front clamping plate 4 and the back plate 21 are arranged in front and behind to form a gap for accommodating the fireproof bricks on the back. Reference Figure 3 The fireproof bricks on the back include symmetrically arranged fireproof brick 51 and fireproof brick 52, which can be spliced ​​together from left to right.

[0023] The fireproof bricks on the back are divided into two pieces for easy installation. Since the fireproof bricks on the back need to be inserted into the feed pipe 3, and the feed pipe 3 is usually set to be inclined downwards for easy material discharge, it is difficult to directly insert the fireproof bricks on the back into the feed pipe 3 in the narrow space of the furnace. Therefore, this design uses fireproof brick No. 1 51 and fireproof brick No. 2 52 to be inserted from the left and right sides of the feed pipe 3 to achieve splicing.

[0024] A clearance opening 53 is provided between the No. 1 fireproof brick 51 and the No. 2 fireproof brick 52. The feed pipe 3 is inserted into the clearance opening 53. The size of the clearance opening 53 and the shape of the feed pipe 3 are compatible with each other.

[0025] The joint between fireproof brick 51 (No. 1) and fireproof brick 52 (No. 2) is designed with an L-shaped edge 54. The L-shaped edges 54 of the two fireproof bricks are joined together to form an L-shaped joint. Compared with a straight joint, the L-shaped joint has a longer and more tortuous path, making it more difficult for hot air to be transferred to the back plate 21 through the L-shaped joint, thereby improving the thermal insulation performance at the joint.

[0026] Furthermore, the L-shaped splicing joint allows for a front-to-back pressing relationship between fireproof brick 51 and fireproof brick 52. During assembly, the user can temporarily fix both fireproof bricks simultaneously by pressing fireproof brick 52 with one hand, and then insert the insert plate 6 with the other hand. This allows one person to easily complete the installation of the fireproof bricks on the back.

[0027] The L-shaped seam is located above the relief opening 53. In other embodiments, the L-shaped seam may be located below the relief opening 53, or L-shaped seams may be provided both above and below the relief opening 53.

[0028] When the fireproof brick is attached to the back plate 21, there is a gap between the fireproof brick and the front clamping plate 4. This gap is used for the insertion plate 6. The insertion plate 6 is tightly clamped between the fireproof brick and the front clamping plate 4, thereby achieving front and rear separation of the fireproof brick.

[0029] The left and right ends of the insert plate 6 are provided with baffles 61. The baffles 61 are located on both sides of the feed pipe 3. The distance between the two baffles 61 is slightly larger than the width of the feed pipe 3. The difference between the two distances can be 1mm or 2mm, etc.

[0030] Therefore, the main body of the insert plate 6 is concave, and the baffle 61 blocks at both ends of the feed pipe 3, making it difficult for the insert plate 6 to loosen in the left and right directions when it is inserted. Furthermore, the left and right limiting of the baffle 61 ensures that the main body of the insert plate 6 can be arranged relatively symmetrically at the joint of the first fireproof brick 51 and the second fireproof brick 52 during the insertion process, so that the insert plate 6 can play a good front and rear blocking role for both the first fireproof brick 51 and the second fireproof brick 52.

[0031] The upper end of the insert plate 6 is fixed with a lifting plate 62 that bends outward toward the furnace. The insert plate 6 is a metal plate. The lifting plate 62 is folded outward so that the main body of the insert plate 6 and the lifting plate 62 form a 90-degree angle. When the insert plate 6 is located in the fireplace, the lifting plate 62 is almost horizontal.

[0032] The lifting plate 62 is designed for the user to apply force with their fingers so that the insert plate 6 can be easily removed with one hand; Secondly, when replacing the fireproof bricks on the back, the wood ash and other substances from years of burning will stick to the insert plate 6, making it difficult to remove the insert plate 6. The lifting plate 62 solves this problem well. Users can tap the lifting plate 62 from bottom to top to loosen the insert plate 6, so that the insert plate 6 can be removed quickly.

[0033] The entire fireproof brick installation structure on the back is as follows within the fireplace: Figure 4 As shown, the user can open the front furnace door and then install the fireproof brick on the back. The fireproof brick on the back is supported by a support plate 1, and the left and right sides are limited by side plates 22. The front and back are fixed by insert plates 6.

[0034] Example 2: A fireproof brick mounting structure for the back of a fireplace, which differs from Example 1 in that, referring to... Figure 5 The upper end of the front plate 4 is fixed with a guide plate 41 that is inclined outward from the furnace. The guide plate 41 and the front plate 4 are an integral metal plate. The guide plate 41 is bent relative to the front plate 4 by bending operation. The distance a between the upper end of the guide plate 41 and the back plate 21 is greater than the distance b between the front plate 4 and the back plate 21. This design facilitates the insertion of the insert plate 6.

[0035] Example 3, a fireproof brick mounting structure for the back of a fireplace, differs from Example 1 or Example 2 in that, referring to... Figure 5 The front plate 4 is arranged at an angle relative to the back plate 21, and the gap between the two gradually decreases from top to bottom. This design is to ensure that the insert plate 6 can stably engage with the fireproof brick on the back. Because the thickness of the fireproof brick is uniform, the insertion gap of the insert plate 6 gradually decreases as it is inserted downwards, which ensures that it gradually engages during the insertion process.

[0036] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fireproof brick mounting structure for the back of a fireplace, characterized in that, include: A support plate (1) is fixed inside the furnace and is used to support the fireproof bricks on the back. Back plate (21), located on the back of the furnace; The feed pipe (3) extends into the furnace through the back plate (21); The front clamping plate (4) is fixed at the upper end of the feed pipe (3) located inside the furnace. The front clamping plate (4) and the back plate (21) are arranged in front and behind. Fireproof bricks No. 1 (51) and No. 2 (52) are located on the left and right sides of the feed pipe (3). Fireproof bricks No. 1 (51) and No. 2 (52) are spliced ​​together on both sides of the feed pipe (3) to form a back fireproof brick. The back fireproof brick is located between the front plate (4) and the back plate (21). A plug plate (6) is inserted vertically between the fireproof brick on the back and the front clamping plate (4) to make the two clamp together. The insert plate (6) is provided with baffles (61) at both ends, and the baffles (61) are located on both sides of the feed pipe (3).

2. The fireproof brick mounting structure for the back of a fireplace according to claim 1, characterized in that: The upper end of the insert plate (6) is fixed with a lifting plate (62) that bends outward toward the furnace.

3. The fireproof brick mounting structure for the back of a fireplace according to claim 1, characterized in that: The front plate (4) is arranged at an angle relative to the back plate (21), and the distance between the two gradually decreases from top to bottom.

4. The fireproof brick mounting structure for the back of a fireplace according to claim 1, characterized in that: The upper end of the front plate (4) is fixed with a guide plate (41) that is inclined outward from the furnace. The distance between the upper end of the guide plate (41) and the back plate (21) is greater than the distance between the front plate (4) and the back plate (21).

5. The fireproof brick mounting structure for the back of a fireplace according to claim 1, characterized in that: A clearance opening (53) is provided between the No. 1 fireproof brick (51) and the No. 2 fireproof brick (52), and the feed pipe (3) is inserted into the clearance opening (53).

6. The fireproof brick mounting structure for the back of a fireplace according to claim 5, characterized in that: The joint of fireproof brick No. 1 (51) and fireproof brick No. 2 (52) is set with an L-shaped edge (54), and the L-shaped edges (54) of the two fireproof bricks are joined together to form an L-shaped splicing seam.

7. The fireproof brick mounting structure for the back of a fireplace according to claim 6, characterized in that: The L-shaped seam is located above and / or below the relief opening (53).

8. The fireproof brick mounting structure for the back of a fireplace according to claim 1, characterized in that: The tray (1) is fixed to the side of the furnace. The tray (1) is bent into an L shape. The long side of the L-shaped tray (1) is located on the side of the furnace, and the short side of the L-shaped tray (1) is located on the back of the furnace.

Citation Information

Patent Citations

  • The fixing structure of fire bricks in the fireplace

    CN221005132U