Quick-open type heating furnace door

Abstract

The utility model discloses a quick-open type heating furnace door, which comprises a mounting frame and a furnace door, the furnace door is in sliding connection with the mounting frame, a mounting seat is fixedly mounted on the mounting frame, a base is fixedly mounted in the mounting seat, a buffer plate is arranged above the base, the buffer plate is arranged corresponding to the furnace door, and the furnace door is arranged on the buffer plate. A plurality of sets of symmetrically-distributed supports are arranged between the buffer plate and the base, a first sliding rod is fixedly installed in the base, sliding blocks are rotatably installed at the lower ends of the supports and slidably connected with the base, a damping rod is fixedly installed between the sliding blocks and the base, and the damping rod is sleeved with a third spring. The buffering plate is matched with the support, the sliding block, the damping rod and the third spring to achieve the buffering protection effect on the furnace door approaching the bottom of the mounting frame at a high speed, and the heating furnace door is prevented from colliding with the mounting frame in the high-speed moving process.

Description

Technical Field

[0001] This utility model relates to the field of furnace door technology, specifically a quick-opening furnace door. Background Technology

[0002] A heating furnace is a device that heats materials or workpieces to the rolling or forging temperature. Heating furnaces are widely used in many industries such as petroleum, chemical, metallurgy, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. The furnace door can protect operators from high temperatures and harmful gases, ensuring their safety. Quick-opening furnace doors are suitable for industrial heating furnaces that require frequent opening and closing.

[0003] In the existing technology, the furnace door of the heating furnace that can be opened and closed quickly does not have good anti-collision measures during the opening and closing process. The furnace door is prone to high-speed collision with the furnace body during the opening and closing process, which leads to deformation of the furnace door. This not only reduces the service life of the furnace door, but also affects the sealing between the heating furnace and the furnace door, thus affecting the normal operation of the heating furnace. Utility Model Content

[0004] The purpose of this invention is to provide a quick-opening furnace door for a heating furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-opening heating furnace door, comprising a mounting frame and a furnace door, wherein the furnace door is slidably connected to the mounting frame, a mounting base is fixedly mounted on the mounting frame, a base is fixedly mounted inside the mounting base, a buffer plate is provided above the base, the buffer plate is correspondingly arranged with the furnace door, multiple sets of symmetrically distributed supports are provided between the buffer plate and the base, a first sliding rod is fixedly mounted inside the base, a slider is rotatably mounted at the lower end of the support, the slider is slidably connected to the base, a damping rod is fixedly mounted between the slider and the base, a third spring is sleeved on the damping rod, two sets of symmetrically distributed winding rods are rotatably mounted inside the mounting frame, a protective film is provided inside the mounting frame, the protective film is located above the buffer plate, two sets of symmetrically distributed fixing frames are fixedly mounted on both sides of the mounting frame, a sliding carriage is slidably mounted on each of the two sets of fixing frames, a brush is rotatably mounted on the sliding carriage, and the brush is fitted in contact with the surface of the protective film.

[0006] As a further preferred embodiment of this technical solution, the upper end of the bracket is rotatably connected to the buffer plate via a rotating shaft, the slider is slidably sleeved with the first sliding rod, the first sliding rod is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the slider and the base.

[0007] As a further preferred embodiment of this technical solution, the two ends of the damping rod are fixedly connected to the slider and the base, respectively, and the two ends of the third spring are fixedly installed to the two ends of the damping rod, respectively.

[0008] As a further preferred embodiment of this technical solution, the two ends of the protective film are respectively wound with two sets of winding rods, the protective film is slidably connected to the mounting base, each of the two sets of winding rods is fitted with a drive wheel, and the mounting base is provided with a drive chain, which is respectively connected to the two sets of drive wheels for transmission.

[0009] As a further preferred embodiment of this technical solution, a gear is sleeved on the brush, a rack is slidably installed inside the carriage, a cylinder is fixedly installed inside the carriage, the rack is connected to the output end of the cylinder piston rod, the rack is meshed with the gear, a scraper is fixedly installed on the fixed frame, and the brush is fitted with the scraper.

[0010] As a further preferred embodiment of this technical solution, a second slide rod is fixedly installed inside the fixed frame, and two sets of symmetrically distributed second springs are sleeved on the second slide rod. The slide frame is slidably sleeved with the second slide rod, and the two ends of the two sets of second springs are fixedly connected to the slide frame and the fixed frame, respectively. A cam is rotatably installed on the fixed frame, and the cam is fitted with the slide frame.

[0011] This utility model provides a quick-opening furnace door for a heating furnace, which has the following advantages:

[0012] (1) This utility model uses a buffer plate, a bracket, a slider, a damping rod, and a third spring to buffer and protect the furnace door from collision with the mounting frame during high-speed movement of the furnace door. The mounting frame is fixedly installed with the furnace body. If the furnace door collides with the mounting frame and deforms, it will affect the good sealing performance of the furnace. In addition, a variable frequency speed control motor is used in this device. The frequency converter can realize stepless speed regulation of the motor. It runs at high frequency and approaches quickly during the 0-90% stroke of the furnace door sliding, and runs at low frequency and presses at low speed during the 90-100% stroke of the furnace door sliding, reducing the force between the furnace door and the mounting frame. The buffer plate, damping rod, and third spring further prevent damage that may occur during the high-speed movement of the furnace door.

[0013] (2) The present invention uses a protective film to cover the buffer plate, so as to avoid the residual particulate impurities on the buffer plate from causing deformation and damage to the bottom of the furnace door and the surface of the buffer plate after the furnace door is closed, thus shortening the service life of the furnace door. When particulate impurities are attached to the protective film above the buffer plate, the transmission conversion of the protective film above the buffer plate is completed by the rotation of two sets of winding rods, and the cleaning of the protective film with impurities attached and the winding is completed by the set slide and brush, which facilitates the subsequent conversion and use of the protective film. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the structural separation of the mounting bracket and mounting base of this utility model;

[0016] Figure 3 This is a schematic diagram showing the structural separation of the mounting base and the base of this utility model;

[0017] Figure 4 This is a schematic diagram showing the structural separation of the base and the buffer plate of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A;

[0019] Figure 6 This is a schematic diagram showing the structural separation of the fixing frame and the slide of this utility model;

[0020] Figure 7 For the present utility model Figure 6 Enlarged view of the structure at point -B;

[0021] In the diagram: 1. Mounting bracket; 2. Furnace door; 3. Mounting seat; 4. Base; 5. Buffer plate; 6. Bracket; 7. First slide bar; 8. First spring; 9. Slider; 10. Damping rod; 11. Third spring; 12. Winding rod; 13. Protective film; 14. Drive wheel; 15. Drive chain; 16. Fixing frame; 17. Slide carriage; 18. Brush; 19. Gear; 20. Rack; 21. Cylinder; 22. Second slide bar; 23. Second spring; 24. Cam; 25. Scraper. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1-5As shown in this embodiment, a quick-opening furnace door includes a mounting frame 1 and a furnace door 2. The furnace door 2 is slidably connected to the mounting frame 1. A mounting base 3 is fixedly installed on the mounting frame 1, and a base 4 is fixedly installed inside the mounting base 3. A buffer plate 5 is provided above the base 4, and the buffer plate 5 is correspondingly arranged with the furnace door 2. Multiple sets of symmetrically distributed brackets 6 are provided between the buffer plate 5 and the base 4. A first sliding rod 7 is fixedly installed inside the base 4. A slider 9 is rotatably installed at the lower end of the bracket 6, and the slider 9 is slidably connected to the base 4. A damping rod is fixedly installed between the slider 9 and the base 4. 10. A third spring 11 is sleeved on the damping rod 10. Two sets of symmetrically distributed winding rods 12 are rotatably installed inside the mounting base 3. A protective film 13 is provided inside the mounting base 3, located above the buffer plate 5. Two sets of symmetrically distributed fixing frames 16 are fixedly installed on both sides of the mounting base 3. A slide 17 is slidably installed on each of the two sets of fixing frames 16. A brush 18 is rotatably installed on the slide 17, and the brush 18 is attached to the surface of the protective film 13. The upper end of the bracket 6 is rotatably connected to the buffer plate 5 through a rotating shaft. The slider 9 is slidably sleeved with the first slide rod 7. A first spring 8 is sleeved on the slide rod 7. Both ends of the first spring 8 are fixedly connected to the slider 9 and the base 4, respectively. Both ends of the damping rod 10 are fixedly connected to the slider 9 and the base 4, respectively. Both ends of the third spring 11 are fixedly installed to the ends of the damping rod 10, respectively. This device uses a variable frequency speed-regulating motor, where the frequency converter can achieve stepless speed regulation of the motor. During the 0-90% travel of the furnace door 2, it operates at high frequency and approaches quickly; during the 90-100% travel of the furnace door 2, it operates at low frequency and presses at low speed, reducing the pressure between the furnace door 2 and the mounting bracket 1. The buffer plate 5, damping rod 10, and third spring 11 further prevent damage that may occur during the high-speed operation of the furnace door 2. The buffer plate 5, together with the bracket 6, slider 9, damping rod 10, and third spring 11, plays a buffering and protective role when the furnace door 2 approaches the bottom of the mounting frame 1 at high speed, preventing the furnace door 2 from colliding with the mounting frame 1 during high-speed movement. The mounting frame 1 is fixedly installed with the furnace body. If the furnace door 2 collides with the mounting frame 1 and deforms, it will affect the good sealing performance of the furnace.

[0024] like Figure 6 and Figure 7As shown, the protective film 13 is wound around two sets of winding rods 12 at both ends. The protective film 13 is slidably connected to the mounting base 3. Each set of winding rods 12 is fitted with a drive wheel 14. The mounting base 3 is equipped with a drive chain 15, which is connected to the two sets of drive wheels 14. A gear 19 is fitted onto the brush 18. A rack 20 is slidably installed in the slide 17. A cylinder 21 is fixedly installed in the slide 17. The rack 20 is connected to the output end of the piston rod of the cylinder 21. The rack 20 meshes with the gear 19. The furnace is connected to the fixed frame 16, on which a scraper 25 is fixedly installed. A brush 18 is fitted to the scraper 25. A second slide rod 22 is fixedly installed inside the fixed frame 16. Two sets of symmetrically distributed second springs 23 are sleeved on the second slide rod 22. The slide frame 17 is slidably sleeved with the second slide rod 22. The two ends of the two sets of second springs 23 are fixedly connected to the slide frame 17 and the fixed frame 16, respectively. A cam 24 is rotatably installed on the fixed frame 16. The cam 24 is fitted to the slide frame 17. The protective film 13 is located at the furnace door 2 and the furnace door 2. When hard, granular impurities adhere to the surface of the protective film 13 during its trial use, the motor in the mounting base 3 drives the winding rod 12 to rotate, and in conjunction with the drive chain 15 and drive wheel 14, the protective film 13 directly above the buffer plate 5 is switched. This prevents the impurities originally attached to the surface of the protective film 13 from damaging the furnace door 2 and the lower buffer plate 5. During the winding process of the protective film 13 with impurities, the motor on the winding side is started to drive the cam 24 to rotate, and in conjunction with the second slide rod 22 and the second spring 23, the slide 17 drives the brush 18 to reciprocate on the fixed frame 16, completing the cleaning of impurities on the surface of the protective film 13 and maintaining the cleanliness of the surface of the protective film 13 for the next switch. After use, the brush 18 can be switched between the two sides through the cooperation of the cylinder 21, rack 20 and gear 19. When the side with impurities aligns with the scraper 25, it rubs against the scraper 25 during the reciprocating movement of the slide 17, thus cleaning the impurities on the brush 18.

[0025] This utility model provides a quick-opening furnace door, the specific working principle of which is as follows: The device uses a variable frequency speed-regulating motor, where the frequency converter enables stepless speed regulation of the motor operation. During the 0-90% sliding stroke of the furnace door 2, it operates at high frequency and approaches quickly; during the 90-100% sliding stroke, it operates at low frequency and presses at low speed, reducing the force between the furnace door 2 and the mounting bracket 1. The buffer plate 5, damping rod 10, and third spring 11 further prevent damage that may occur during the high-speed operation of the furnace door 2. The buffer plate 5, in conjunction with the bracket 6, slider 9, damping rod 10, and third spring 11, provides buffer protection when the furnace door 2 approaches the bottom of the mounting bracket 1 at high speed, preventing collision between the furnace door 2 and the mounting bracket 1 during high-speed movement. The mounting bracket 1 is fixedly installed to the furnace body; if the furnace door 2 collides with the mounting bracket 1 and deforms, it will affect the good sealing performance of the furnace. A protective film 13 is located between the furnace door 2 and the buffer plate 5. When hard, granular impurities adhere to the surface of the protective film 13 during trial use, the motor in the mounting base 3 drives the winding rod 12 to rotate, and in conjunction with the drive chain 15 and drive wheel 14, the protective film 13 directly above the buffer plate 5 is switched. This prevents the impurities originally attached to the surface of the protective film 13 from damaging the furnace door 2 and the buffer plate 5 below. During the winding process of the protective film 13 with impurities, the motor on the winding side is started to drive the cam 24 to rotate. In conjunction with the second slide rod 22 and the second spring 23, the slide 17 drives the brush 18 to reciprocate on the fixed frame 16, completing the cleaning of impurities on the surface of the protective film 13 and maintaining the cleanliness of the surface of the protective film 13 for the next switch. After use, the brush 18 can be switched between the two sides through the cooperation of the cylinder 21, rack 20 and gear 19. When the side with impurities aligns with the scraper 25, it rubs against the scraper 25 during the reciprocating movement of the slide 17, thus cleaning the impurities on the brush 18.

[0026] 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 quick-opening furnace door, comprising a mounting bracket (1) and a furnace door (2), characterized in that: The furnace door (2) is slidably connected to the mounting bracket (1). A mounting base (3) is fixedly installed on the mounting bracket (1). A base (4) is fixedly installed inside the mounting base (3). A buffer plate (5) is provided above the base (4). The buffer plate (5) is correspondingly arranged with the furnace door (2). Multiple sets of symmetrically distributed brackets (6) are provided between the buffer plate (5) and the base (4). A first sliding rod (7) is fixedly installed inside the base (4). A slider (9) is rotatably installed at the lower end of the bracket (6). The slider (9) is slidably connected to the base (4). A damping rod (10) is fixedly installed, and a third spring (11) is sleeved on the damping rod (10). Two sets of symmetrically distributed winding rods (12) are rotatably installed in the mounting base (3). A protective film (13) is provided in the mounting base (3). The protective film (13) is located above the buffer plate (5). Two sets of symmetrically distributed fixing frames (16) are fixedly installed on both sides of the mounting base (3). A slide (17) is slidably installed on both sets of fixing frames (16). A brush (18) is rotatably installed on the slide (17). The brush (18) is attached to the surface of the protective film (13).

2. The quick-opening furnace door according to claim 1, characterized in that: The upper end of the bracket (6) is rotatably connected to the buffer plate (5) via a rotating shaft. The slider (9) is slidably sleeved with the first slide rod (7). A first spring (8) is sleeved on the first slide rod (7). The two ends of the first spring (8) are fixedly connected to the slider (9) and the base (4) respectively.

3. The quick-opening furnace door according to claim 1, characterized in that: The two ends of the damping rod (10) are fixedly connected to the slider (9) and the base (4) respectively, and the two ends of the third spring (11) are fixedly installed to the two ends of the damping rod (10) respectively.

4. The quick-opening furnace door according to claim 1, characterized in that: The protective film (13) is wound around two sets of winding rods (12) at both ends. The protective film (13) is slidably connected to the mounting base (3). Both sets of winding rods (12) are fitted with drive wheels (14). The mounting base (3) is provided with a drive chain (15). The drive chain (15) is connected to the two sets of drive wheels (14) respectively.

5. The quick-opening furnace door according to claim 1, characterized in that: A gear (19) is sleeved on the brush (18), a rack (20) is slidably installed in the slide (17), a cylinder (21) is fixedly installed in the slide (17), the rack (20) is connected to the output end of the piston rod of the cylinder (21), the rack (20) is meshed with the gear (19), a scraper (25) is fixedly installed on the fixed frame (16), and the brush (18) is fitted with the scraper (25).

6. The quick-opening furnace door according to claim 1, characterized in that: The fixed frame (16) is fixedly installed with a second slide rod (22). Two sets of symmetrically distributed second springs (23) are sleeved on the second slide rod (22). The slide frame (17) is slidably sleeved with the second slide rod (22). The two ends of the two sets of second springs (23) are fixedly connected to the slide frame (17) and the fixed frame (16) respectively. A cam (24) is rotatably installed on the fixed frame (16). The cam (24) is fitted with the slide frame (17).

Images