Air return furnace with auxiliary structure
By designing automated control components and auxiliary parts, safe and quantitative fuel addition to the return air furnace was achieved, solving the safety hazards caused by manual feeding and improving operational safety.
Patent Information
- Application Number
- CN202520132509.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing return air furnace requires manual operation when adding fuel, which can easily lead to the ejection of high-temperature hot gas, creating a safety hazard.
A return air furnace with an auxiliary structure was designed to achieve automated fuel addition through control components and auxiliary parts. The motor drives the disk to rotate, which in turn drives the movable rod to push the slider and the vertical plate to slide. The horizontal plate moves laterally to achieve quantitative addition of pulverized coal, avoiding manual operation.
It enables safe and quantitative fuel addition, avoiding safety hazards caused by manual fuel addition and improving operational safety.
Smart Images

Figure CN223691089U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a return air furnace technical field, concretely is a return air furnace with auxiliary structure. BACKGROUND
[0002] The secondary combustion design of the return air furnace can fully release fuel heat, has high thermal efficiency, can quickly raise indoor temperature, provides warm and comfortable environment for people in cold weather, is especially applicable to the area without central heating, part return air furnaces have oven or cooking platform, can carry out various cooking operations such as baking, frying, frying etc.
[0003] The existing return air furnace is manually added with fuel in the process of using, the operator needs to open the furnace door frequently in the process of manual adding, and the high-temperature hot gas and flame in the furnace can be sprayed out by frequently opening and adding coal powder, which can easily scald the face, hands and other parts of the operator, and can easily cause safety hazards, aiming at the problem, the utility model provides a return air furnace with auxiliary structure. UTILITY MODEL CONTENTS
[0004] The utility model discloses a return air furnace with auxiliary structure to solve the problem in the background art.
[0005] To achieve the above object, the utility model provides the following technical scheme: a return air furnace with auxiliary structure, including return air furnace body, the inner wall fixed mounting of return air furnace body has combustion board, the top of return air furnace body is provided with cooking seat, the surface of return air furnace body is opened with vent, and the collection frame is placed in the return air furnace body, the return air furnace body is penetrated by return air pipe and is fixedly connected with return air pipe, the surface fixed mounting of return air furnace body has branch frame, the return air furnace body is penetrated by material adding plate and is fixedly connected with material adding plate, the branch frame is penetrated by storage tank and is fixedly connected with storage tank, the storage tank is fixedly installed on the surface of flat plate, the flat plate is fixedly installed on the inner wall of branch frame, the branch frame is provided with control assembly, and the control assembly includes:
[0006] Round hole, the round hole is used for discharging the coal powder in the storage tank;
[0007] Horizontal plate, the horizontal plate is used for shielding the bottom of round hole, and the through hole on the surface of horizontal plate is used for coinciding with round hole;
[0008] Auxiliary part, the auxiliary part is used for quantitatively adding coal powder into return air furnace body, so as to achieve the purpose of auxiliary material adding, and avoid the safety hazard caused by manual material adding.
[0009] Preferably, the round hole is arranged on the surface of the flat plate, the bottom of the flat plate is attached to the surface of the horizontal plate, the surface of the horizontal plate is provided with a through hole, and the coal powder can fall out when the through hole of the surface of the horizontal plate coincides with the round hole.
[0010] Preferably, the auxiliary part comprises a vertical plate, one end of the vertical plate is fixedly installed on the surface of the horizontal plate, and the other end of the vertical plate is fixedly installed on the surface of the sliding block.
[0011] Preferably, the vertical plate is penetrated by a fixed rod and is in sliding connection with the fixed rod, the fixed rod is fixedly installed on the inner wall of the support frame, the surface of the fixed rod is fixedly connected with one end of a first spring, and the other end of the first spring is fixedly installed on the surface of the vertical plate.
[0012] Preferably, the sliding block is attached to the inner wall of the support frame, the surface of the sliding block is hingedly connected with one end of a movable rod, and the other end of the movable rod is hingedly connected with the surface of a disc.
[0013] Preferably, the disc is in rotary connection with the inner wall of the support frame, the surface of the disc is fixedly connected with the output shaft of a motor, and the motor is fixedly installed on the surface of the support frame.
[0014] Preferably, the flat plate is penetrated by a pressing block and is in sliding connection with the pressing block, the surface of the pressing block is fixedly connected with one end of a second spring, the other end of the second spring is fixedly installed on the inner wall of the flat plate, the surface of the pressing block is fixedly installed with a fixed ring, the surface of the fixed ring is attached to the surface of the flat plate, and the inner wall of the fixed ring is fixedly installed with a knocking block.
[0015] Compared with the prior art, the back air furnace with the auxiliary structure has the following beneficial effects:
[0016] 1. The back air furnace with the auxiliary structure is provided with a control assembly, when the output shaft of the motor drives the disc to rotate on the inner wall of the support frame, the movable rod hingedly connected with the surface of the disc pushes the sliding block to slide on the inner wall of the support frame, when the sliding block moves, the vertical plate fixedly connected with the surface of the sliding block slides on the surface of the fixed rod, the horizontal plate fixedly connected with the surface of the vertical plate moves on the bottom of the flat plate synchronously, when the horizontal plate moves, the through hole arranged on the surface of the horizontal plate gradually coincides with the round hole, the coal powder in the storage tank can fall out from the through hole and be added into the back air furnace body through the feeding plate, thereby achieving the purpose of auxiliary feeding and avoiding the safety hazards caused by manual feeding.
[0017] 2、The back air furnace with auxiliary structure, through the setting of the auxiliary part, in the process of the transverse movement of the transverse plate, the transverse plate will extrude the pressing block, the fixed ring fixed on the surface of the pressing block is synchronously slid on the surface of the flat plate, and when the transverse plate no longer extrudes the pressing block, the fixed ring will be bounced up under the support of spring two and knock the surface of the storage tank through the knocking block, so that the coal powder cannot flow out. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a front view structural schematic diagram of the utility model;
[0019] Figure 2 It is a back view structural schematic diagram of the utility model;
[0020] Figure 3 It is a back view sectional structure schematic diagram of the utility model;
[0021] Figure 4 It is a support frame sectional structure schematic diagram of the utility model.
[0022] In the figure: 1, back air furnace body; 2, combustion plate; 3, cooking seat; 4, vent; 5, collection frame; 6, back air pipe; 7, support frame; 8, material adding plate; 9, control assembly; 91, round hole; 92, transverse plate; 93, through hole; 94, auxiliary part; 941, vertical plate; 942, fixed rod; 943, spring one; 944, sliding block; 945, movable rod; 946, disc; 947, motor; 948, pressing block; 949, spring two; 9410, fixed ring; 9411, knocking block; 10, storage tank; 11, flat plate. DETAILED DESCRIPTION
[0023] As Figures 1-4The utility model provides a kind of technical scheme shown: a kind of return air furnace with auxiliary structure, including return air furnace body 1, the inner wall of return air furnace body 1 is fixedly installed with combustion plate 2, the top of return air furnace body 1 is provided with cooking seat 3, the surface of return air furnace body 1 is equipped with vent 4, collection frame 5 is placed in return air furnace body 1, return air furnace body 1 is penetrated by return air pipe 6 and is fixedly connected with return air pipe 6, the surface of return air furnace body 1 is fixedly installed with support frame 7, return air furnace body 1 is penetrated by material adding plate 8 and is fixedly connected with material adding plate 8, support frame 7 is penetrated by storage tank 10 and is fixedly connected with storage tank 10, storage tank 10 is fixedly installed on the surface of flat plate 11, flat plate 11 is fixedly installed on the inner wall of support frame 7, control assembly 9 is arranged in support frame 7, control assembly 9 includes: round hole 91, horizontal plate 92, through-hole 93, auxiliary part 94, when slider 944 moves, the vertical plate 941 fixed on the surface of slider 944 can slide along the surface of fixed rod 942, the horizontal plate 92 fixed on the surface of vertical plate 941 is synchronized in the bottom of flat plate 11 and moves horizontally, when horizontal plate 92 moves, the through-hole 93 equipped on the surface of horizontal plate 92 will gradually coincide with round hole 91, then the coal powder in storage tank 10 can drop from through-hole 93, and is added to return air furnace body 1 by material adding plate 8, to reach the purpose of auxiliary material adding, avoid the security risk brought by manual material adding.
[0024] The round hole 91 is arranged on the surface of the flat plate 11, the bottom of the flat plate 11 is attached to the surface of the horizontal plate 92, the surface of the horizontal plate 92 is arranged with the through hole 93, when the through hole 93 arranged on the surface of the horizontal plate 92 coincides with the round hole 91, the coal powder can be dropped out. The auxiliary part 94 comprises: the vertical plate 941, one end of the vertical plate 941 is fixedly installed on the surface of the horizontal plate 92, the other end of the vertical plate 941 is fixedly installed on the surface of the sliding block 944, when the sliding block 944 moves, the horizontal plate 92 can be driven to move through the vertical plate 941. The vertical plate 941 is penetrated by the fixed rod 942 and is in sliding connection with the fixed rod 942, the fixed rod 942 is fixedly installed on the inner wall of the support frame 7, the surface of the fixed rod 942 is fixedly connected with one end of the spring 1 943, the other end of the spring 1 943 is fixedly installed on the surface of the vertical plate 941, when the vertical plate 941 is stressed, it can stably move horizontally along the surface of the fixed rod 942. The sliding block 944 is attached to the inner wall of the support frame 7, the surface of the sliding block 944 is hingedly connected with one end of the movable rod 945, the other end of the movable rod 945 is hingedly connected with the surface of the disc 946, when the disc 946 rotates, the movable rod 945 can be folded to push the sliding block 944 to move. The disc 946 is rotatably connected with the inner wall of the support frame 7, the surface of the disc 946 is fixedly connected with the output shaft of the motor 947, the motor 947 is fixedly installed on the surface of the support frame 7, the output shaft of the motor 947 can drive the disc 946 to move circularly on the inner wall of the support frame 7. The flat plate 11 is penetrated by the pressing block 948 and is in sliding connection with the pressing block 948, the surface of the pressing block 948 is fixedly connected with one end of the spring 2 949, the other end of the spring 2 949 is fixedly installed on the inner wall of the flat plate 11, the surface of the pressing block 948 is fixedly installed with the fixed ring 9410, the surface of the fixed ring 9410 is attached to the surface of the flat plate 11, the inner wall of the fixed ring 9410 is fixedly installed with the knocking block 9411, when the pressing block 948 is no longer stressed, it can be popped up under the action of the spring 2 949 to drive the fixed ring 9410 to move horizontally on the surface of the flat plate 11.
[0025] In the utility model, when using, the combustion plate 2 is placed on the surface of the combustion plate 2 in the back draft stove body 1, and then ignition is carried out, and then the protection door of the back draft stove body 1 is closed, in the process of combustion, the smoke can flow into the smoke pipe from the back draft pipe 6, and in the process of combustion, the user can place the iron pot on the surface of the cooking seat 3 and carry out cooking operation, when the coal powder needs to be added, the operator can start the motor 947 at the bottom of the support frame 7, the output shaft of the motor 947 drives the disc 946 to rotate on the inner wall of the support frame 7, the movable rod 945 hinged on the surface of the disc 946 pushes the sliding block 944 to slide on the inner wall of the support frame 7, when the sliding block 944 moves, the vertical plate 941 fixed on the surface of the sliding block 944 can slide along the surface of the fixed rod 942, the horizontal plate 92 fixed on the surface of the vertical plate 941 synchronously moves horizontally on the bottom of the flat plate 11, when the horizontal plate 92 moves, the through hole 93 formed in the surface of the horizontal plate 92 gradually coincides with the circular hole 91, and then the coal powder in the storage tank 10 can fall out from the through hole 93 and be added to the back draft stove body 1 through the feeding plate 8, so that the purpose of auxiliary feeding is achieved, and the safety hidden danger caused by manual feeding is avoided, and in the process of horizontal movement of the horizontal plate 92, the horizontal plate 92 intermittently extrudes the pressing block 948, when the pressing block 948 is extruded, the fixed ring 9410 fixed on the surface of the pressing block 948 synchronously slides on the surface of the flat plate 11, and when the horizontal plate 92 no longer extrudes the pressing block 948, the fixed ring 9410 is bounced up under the support of the spring two 949 and knocks the surface of the storage tank 10 through the knocking block 9411, and this mode can avoid that the coal powder is accumulated in the circular hole 91 and cannot flow out.
[0026] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the spirit of the utility model is within the protection scope of the utility model.
Claims
1. A return air furnace with auxiliary structure, comprising a return air furnace body (1), characterized in that: The inner wall of the return air stove body (1) is fixedly installed with a combustion plate (2), the top of the return air stove body (1) is provided with a cooking seat (3), the surface of the return air stove body (1) is provided with a ventilation opening (4), the return air stove body (1) is placed with a collecting frame (5), the return air stove body (1) is penetrated by a return air pipe (6) and is fixedly connected with the return air pipe (6), the surface of the return air stove body (1) is fixedly installed with a support frame (7), the return air stove body (1) is penetrated by a material adding plate (8) and is fixedly connected with the material adding plate (8), the support frame (7) is penetrated by a storage tank (10) and is fixedly connected with the storage tank (10), the storage tank (10) is fixedly installed on the surface of a flat plate (11), the flat plate (11) is fixedly installed on the inner wall of the support frame (7), the support frame (7) is provided with a control assembly (9), the control assembly (9) comprises: A round hole (91) is used for discharging the pulverized coal in the storage tank (10); A horizontal plate (92) is used for shielding the bottom of the round hole (91), and a through hole (93) is arranged on the surface of the horizontal plate (92) and is used for coinciding with the round hole (91); An auxiliary part (94) is used for quantitatively adding the pulverized coal into the return air stove body (1).
2. The return air furnace with auxiliary structure according to claim 1, characterized in that: The round hole (91) is arranged on the surface of the flat plate (11), the bottom of the flat plate (11) is attached to the surface of the horizontal plate (92), and the surface of the horizontal plate (92) is provided with a through hole (93).
3. The return air furnace with auxiliary structure according to claim 1, characterized in that: The auxiliary part (94) comprises: a vertical plate (941) fixedly installed on one end of the surface of the horizontal plate (92), and the other end of the vertical plate (941) is fixedly installed on the surface of a sliding block (944).
4. The return air furnace with auxiliary structure according to claim 3, characterized in that: The vertical plate (941) is penetrated by a fixed rod (942) and is slidingly connected with the fixed rod (942), the fixed rod (942) is fixedly installed on the inner wall of the support frame (7), the surface of the fixed rod (942) is fixedly connected with one end of a spring (943), and the other end of the spring (943) is fixedly installed on the surface of the vertical plate (941).
5. The return air furnace with auxiliary structure according to claim 3, characterized in that: The sliding block (944) is attached to the inner wall of the support frame (7), the surface of the sliding block (944) is hingedly connected with one end of a movable rod (945), and the other end of the movable rod (945) is hingedly connected with the surface of a disc (946).
6. The return air furnace with auxiliary structure according to claim 5, characterized in that: The disc (946) is rotationally connected with the inner wall of the support frame (7), the surface of the disc (946) is fixedly connected with the output shaft of a motor (947), and the motor (947) is fixedly installed on the surface of the support frame (7).
7. The return air furnace with auxiliary structure according to claim 1, characterized in that: The flat plate (11) is penetrated by a pressing block (948) and is in sliding connection with the pressing block (948), one end of a spring two (949) is fixedly connected to the surface of the pressing block (948), the other end of the spring two (949) is fixedly installed on the inner wall of the flat plate (11), the surface of the pressing block (948) is fixedly installed with a fixed ring (9410), the surface of the fixed ring (9410) is attached to the surface of the flat plate (11), and the inner wall of the fixed ring (9410) is fixedly installed with a knocking block (9411).