Anti-blocking fire grate structure

By designing an anti-blocking grate structure and utilizing the lever principle and the cooperation between the movable frame and the cleaning knife, efficient cleaning of the ash leakage holes is achieved, the problem of ash blockage is solved, and the cleaning and operating efficiency of the combustion equipment is improved.

CN223375824UActive Publication Date: 2025-09-23WAFANGDIAN YONGNING LONGDA MACHINERY GROUT CO LTD
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Patent Information

Application Number
CN202422622285.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-09-23
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

The existing grate structure easily causes ash to accumulate on the grate, especially clogging the ash holes, affecting the smooth discharge of ash and reducing the combustion efficiency and heat energy transfer efficiency.

Method used

An anti-blocking grate structure is designed. The lever principle is adopted. Through the cooperation of a movable frame and a cleaning knife, the lever principle is used to achieve efficient cleaning of the ash leakage holes. The cleaning knife slides back and forth on the top of the movable frame, and the cleaning knife is moved up and down by the rotation connection of the pressure rod and the fixed column. The cleaning process is simple and fast.

Benefits of technology

It achieves efficient cleaning of the ash holes, improves the cleaning efficiency and operating efficiency of the furnace, ensures the smooth discharge of ash, avoids blockage problems, and improves the operating stability of the combustion equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223375824U_ABST
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Abstract

The utility model relates to the field of fire grates, and discloses an anti-blocking fire grate structure which comprises a hearth, an ash discharge port is formed in the bottom of the front side wall of the hearth, a furnace door is installed on the inner wall of the ash discharge port, the furnace door is rotationally connected with the inner wall of the ash discharge port, the inner wall of the hearth is fixedly connected with a bottom plate, and the bottom plate is located at the top of the ash discharge port. A plurality of ash leakage holes are formed in the top of the bottom plate and are evenly arranged left and right, a movable frame is arranged below the bottom plate, guide columns are perpendicularly and fixedly connected to the four corners of the top of the movable frame, the four guide columns penetrate through the four corners of the bottom plate respectively, the guide columns are in sliding fit with the bottom plate, and cleaning knives are arranged under the ash leakage holes. And sliding holes are formed in the lower portions of the middles of the left side wall and the right side wall of the hearth correspondingly, and sliding columns are fixedly connected to the left side wall and the right side wall of the movable frame correspondingly.
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Description

Technical Field

[0001] The utility model relates to the field of grates, and in particular to an anti-blocking grate structure. Background Art

[0002] In combustion equipment, the furnace is the core component for generating heat energy by burning fuel. After the fuel inside the furnace burns, a large amount of ash will be produced. If these ashes are not cleaned in time, they will accumulate at the bottom of the furnace or on the grate, affecting the combustion efficiency and the transfer of heat energy.

[0003] The current grate structure usually has a fixed grate at the bottom of the furnace. The fuel burns on the grate, and the ash is discharged through the ash discharge port below the grate. However, the fixed grate easily causes ash to accumulate on the grate, especially at the ash discharge holes. The ash easily blocks these holes and affects the smooth discharge of the ash. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies, the utility model provides an anti-blocking grate structure.

[0005] The technical solution adopted by this utility model:

[0006] The invention relates to an anti-blocking grate structure, comprising a furnace, an ash discharge port is provided at the bottom of the front side wall of the furnace, a furnace door is installed on the inner wall of the ash discharge port, the furnace door is rotatably connected to the inner wall of the ash discharge port, the inner wall of the furnace is fixedly connected to the bottom plate, the bottom plate is located at the top of the ash discharge port, a plurality of ash leakage holes are provided on the top of the bottom plate, the ash leakage holes are evenly arranged on the left and right, a movable frame is provided below the bottom plate, the movable frame is a square frame, the top four corners of the movable frame are vertically fixedly connected with guide pillars, the four guide pillars respectively pass through the four corners of the bottom plate, the guide pillars and the bottom plate are slidably matched, a cleaning knife is provided directly below the ash leakage hole, the cleaning knife and the ash leakage hole slide up and down with a clearance, the front and rear ends of the bottom of the cleaning knife are aligned with the bottom of the ash discharge port, and the ash leakage holes are slidably matched with the bottom of the ash discharge port. The front and rear sides of the top of the movable frame are fixedly connected, and sliding holes are provided at the lower middle part of the left and right side walls of the furnace. The left and right side walls of the movable frame are fixedly connected with sliding columns, which pass through the sliding holes and slide in cooperation with the sliding holes. The rear sides of the left and right outer walls of the furnace are fixedly connected with fixed columns, and the left and right outer walls of the furnace are respectively provided with pressure rods, and the fixed columns pass through the pressure rods, and the pressure rods are rotatably connected to the fixed columns. The two ends of the pressure rods extend forward to the outside of the two sliding holes respectively, and a movable hole is provided on the outer wall of one end of the pressure rod, and the sliding column is located inside the movable hole, and the sliding column slides in cooperation with the movable hole. The other ends of the two pressure rods are fixedly connected with a connecting rod, and the bottom side wall of the furnace has ventilation holes.

[0007] Beneficial effects of the utility model:

[0008] The utility model uses the lever principle, and only a small force is needed to pry the cleaning knife, so that the ash leakage holes can be cleaned efficiently. The cleaning process is simple and fast, and the cleaning efficiency and operation efficiency of the furnace are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 yes Figure 1 Front view of

[0011] Figure 3 yes Figure 2 Cross-section at AA;

[0012] Figure 4 yes Figure 1 Left view of;

[0013] Figure 5 yes Figure 4 Cross-section at the middle BB;

[0014] Figure 6 This is a schematic diagram of the structure of the utility model without the furnace;

[0015] Figure 7 yes Figure 6 Schematic diagram of the structure without the bottom plate.

[0016] The specific reference numerals in all the drawings are: 1. furnace; 2. ash discharge port; 3. furnace door; 4. bottom plate; 5. ash leakage hole; 6. guide column; 7. movable frame; 8. cleaning knife; 9. sliding hole; 10. sliding column; 11. fixed column; 12. pressure rod; 13. movable hole; 14. connecting rod; 15. ventilation hole. DETAILED DESCRIPTION

[0017] like Figure 1-7The figure shows: an anti-blocking grate structure, including a furnace 1, an ash discharge port 2 is provided at the bottom of the front side wall of the furnace 1, a furnace door 3 is installed on the inner wall of the ash discharge port 2, the furnace door 3 is rotatably connected to the inner wall of the ash discharge port 2, the inner wall of the furnace 1 is fixedly connected to the bottom plate 4, the bottom plate 4 is located at the top of the ash discharge port 2, a plurality of ash leakage holes 5 are provided on the top of the bottom plate 4, the ash leakage holes 5 are evenly arranged left and right, a movable frame 7 is provided below the bottom plate 4, the movable frame 7 is a square frame, the top four corners of the movable frame 7 are vertically fixedly connected with guide pillars 6, the four guide pillars 6 respectively pass through the four corners of the bottom plate 4, the guide pillars 6 and the bottom plate 4 slide together, and a cleaning knife 8 is provided directly below the ash leakage hole 5, the cleaning knife 8 and the ash leakage hole 5 slide up and down with a clearance fit, and the front and rear ends of the bottom of the cleaning knife 8 are aligned with the front end of the top of the movable frame 7 The rear side is fixedly connected, and sliding holes 9 are provided at the lower middle part of the left and right side walls of the furnace 1. The left and right side walls of the movable frame 7 are fixedly connected with sliding columns 10, which pass through the sliding holes 9 and slide with the sliding holes 9. The rear sides of the left and right outer walls of the furnace 1 are fixedly connected with fixed columns 11. The left and right outer walls of the furnace 1 respectively have pressure rods 12, and the fixed columns 11 pass through the pressure rods 12. The pressure rods 12 are rotatably connected with the fixed columns 11. The two ends of the pressure rods 12 extend forward to the outside of the two sliding holes 9 respectively. A movable hole 13 is provided on the outer wall of one end of the pressure rod 12. The sliding column 10 is located inside the movable hole 13, and the sliding column 10 slides with the movable hole 13. The other ends of the two pressure rods 12 are fixedly connected with a connecting rod 14, and the bottom side wall of the furnace 1 has a ventilation hole 15.

[0018] Ashes generated by combustion in the furnace 1 will accumulate on the bottom plate 4 , and part of the ash will fall to the bottom of the furnace 1 through the ash leakage holes 5 .

[0019] The movable frame 7 is slidably matched with the bottom plate 4 through the four guide pillars 6 on the top thereof to maintain stable up and down movement.

[0020] The cleaning knife 8 is fixed on the top of the movable frame 7 and is initially located just below the ash leakage hole 5 , but does not clean the ash leakage hole 5 .

[0021] Both ends of the compression rod 12 are rotatably connected to the fixed column 11 , and the sliding column 10 passes through the sliding hole 9 and the movable hole 13 , but is not subjected to external force at this time and is in a natural state.

[0022] When the ash leakage hole 5 needs to be cleaned, the operator presses the rear side of the pressure rod 12 downward.

[0023] Since the pressing rod 12 is rotatably connected to the fixing column 11 , both ends of the pressing rod 12 will be lifted upward.

[0024] The lifted ends of the pressing rod 12 push the sliding column 10 through the movable hole 13, thereby pushing the movable frame 7 to move upward.

[0025] When the movable frame 7 moves upward, the cleaning knife 8 on the top thereof will move upward accordingly, pass through the ash leakage hole 5, and scrape off the ash blocking the ash leakage hole 5.

[0026] After the cleaning is completed, the operator releases the pressure rod 12, and the movable frame 7 and the cleaning knife 8 are reset under the action of their own gravity.

[0027] The pressure rod 12 is also reset therewith, returns to the initial position, and is ready for the next cleaning.

Claims

1. An anti-blocking grate structure, characterized in that: The invention comprises a furnace (1), an ash discharge port (2) is provided at the bottom of the front side wall of the furnace (1), a furnace door (3) is installed on the inner wall of the ash discharge port (2), the furnace door (3) is rotatably connected to the inner wall of the ash discharge port (2), the inner wall of the furnace (1) is fixedly connected to the bottom plate (4), the bottom plate (4) is located at the top of the ash discharge port (2), a plurality of ash leakage holes (5) are provided on the top of the bottom plate (4), and the ash leakage holes (5) are evenly arranged on the left and right. A movable frame (7) is provided below the bottom plate (4), and the movable frame (7) is a square frame. The four corners of the top of the movable frame (7) are vertically fixedly connected with guide pillars (6), and the four guide pillars (6) respectively penetrate the four corners of the bottom plate (4). The guide pillars (6) and the bottom plate (4) are slidably matched. A cleaning knife (8) is provided directly below the ash leakage hole (5), and the cleaning knife (8) and the ash leakage hole (5) are slidably matched with each other in an upward and downward sliding gap. The front and rear ends of the bottom of the cleaning knife (8) are fixedly connected to the front and rear sides of the top of the movable frame (7). The left and right side walls of the furnace (1) are both provided with sliding holes (9) at the lower middle part, the left and right side walls of the movable frame (7) are both fixedly connected with sliding columns (10), the sliding columns (10) pass through the sliding holes (9), the sliding columns (10) and the sliding holes (9) are slidably matched, the left and right side outer walls of the furnace (1) are both fixedly connected with fixed columns (11), the left and right side outer walls of the furnace (1) are respectively provided with pressure rods (12), the fixed columns (11) pass through the pressure rods (12), the pressure rods (12) are fixedly connected with the fixed columns (11), and the pressure rods (12) are fixedly connected with the fixed columns (11). The rod (12) is rotatably connected to the fixed column (11), and the two ends of the pressure rod (12) extend forward to the outside of the two sliding holes (9). A movable hole (13) is opened on the outer wall of one end of the pressure rod (12), and the sliding column (10) is located inside the movable hole (13). The sliding column (10) and the movable hole (13) are slidably matched. A connecting rod (14) is fixedly connected between the other ends of the two pressure rods (12), and a ventilation hole (15) is provided on the bottom side wall of the furnace (1).