A new type of heat-insulating door device

Abstract

This utility model relates to the field of tunnel kiln insulation technology. It discloses a novel insulation door device, comprising: a fixed door frame installed on the tunnel kiln; a material conveying device that feeds materials into / out of the tunnel kiln through the fixed door frame; and a soft curtain and a counterweight-type swing door assembly distributed one above the other within the fixed door frame to form a closed structure that prevents heat loss. This novel insulation door device achieves dynamic opening and closing in a coordinated manner, avoiding heat leakage under a single structure, ensuring efficient heat retention, and improving the overall insulation performance of the tunnel kiln. Simultaneously, the automated recovery mechanism reduces human intervention, improving production continuity and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel kiln insulation technology, specifically to a novel insulation door device. Background Technology

[0002] In the field of tunnel kiln drying, as a continuous heat treatment equipment, the opening and closing of the inlet and outlet doors of the tunnel kiln inevitably leads to a significant loss of heat energy. Specifically, existing insulation door devices mostly use a single soft curtain structure to seal the inlet and outlet, achieving easy opening and closing and heat isolation during material transportation. However, this single soft curtain design has significant limitations in practical applications, especially when conveying large volumes of materials. Excessive material height results in an excessively long soft curtain door. When the material pushes open the soft curtain, it is easily "rolled up" by the material and enters the tunnel kiln, causing conveying interference, material jamming, or damage, affecting the normal drying process inside the kiln. Utility Model Content

[0003] To address the aforementioned issues, this utility model discloses a novel heat-insulating door device that solves the problem of belt interference in existing single-curtain designs when conveying large volumes of materials. It includes: a fixed door frame installed on a tunnel kiln; a material conveying device that feeds materials into / out of the tunnel kiln from the fixed door frame; and a soft curtain and a counterweight-type swing door assembly arranged one above the other within the fixed door frame to form a closed structure that prevents heat loss.

[0004] Preferably, the counterweight-type swing door assembly includes:

[0005] A swing door, the bottom end of which is rotatably mounted to the bottom of a fixed door frame via a connecting shaft;

[0006] A counterweight mechanism is installed at the bottom of the swing door, facing away from the swing door's flipping direction.

[0007] Preferably, the bottom end of the swing door rests against the bottom of the fixed door frame.

[0008] Preferably, the distance between the bottom end of the material conveying device and the bottom of the fixed door frame is between 20-30cm.

[0009] Preferably, the counterweight mechanism includes:

[0010] Mounting plate, the top of which is mounted on the swing door via a flip shaft;

[0011] Lower locking rod, the lower locking rod is installed on the mounting plate away from the flip shaft end;

[0012] Annular weights, multiple annular weights are fitted onto a mounting plate.

[0013] Preferably, the annular weight has an installation notch so that it can be fitted onto the mounting plate.

[0014] Preferably, the mounting plate has a locking plate for securing the mounting notch on the side facing away from the hinged door.

[0015] Preferably, the mounting plate has a slot on the side facing away from the swing door, and the insert plate is inserted into the slot.

[0016] Preferably, the width of the mounting notch is greater than the thickness of the mounting plate.

[0017] Preferably, the top of the mounting plate is thickened.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This utility model provides a novel heat-insulating door device that solves the problem of belt interference when conveying large-volume materials in the existing single soft curtain design by combining the upper and lower structures of the soft curtain and the counterweight swing door assembly. It realizes the automated operation of automatically pushing open the closed structure and restoring the closed structure by gravity. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a schematic diagram of the material pushing and closing structure action of this utility model;

[0024] Figure 4 This is an external view of the counterweight mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the engagement between the annular weight and the insert plate of this utility model.

[0026] In the diagram: 10. Fixed door frame; 11. Material conveying device; 12. Soft curtain; 13. Counterweight swing door assembly; 14. Swing door; 15. Connecting shaft; 16. Counterweight mechanism; 17. Mounting plate; 18. Tilting shaft; 19. Lower locking rod; 20. Circular weight; 21. Mounting notch; 22. Insert plate; 23. Slot. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] like Figures 1 to 3 As shown, this embodiment provides a novel heat-insulating door device, including: a fixed door frame 10 installed on a tunnel kiln, a material conveying device 11 that feeds material into / out of the tunnel kiln from the fixed door frame 10, and a soft curtain 12 and a counterweight swing door assembly 13 distributed one above the other inside the fixed door frame 10 to form a closed structure that prevents heat loss.

[0031] The working principle and beneficial effects of the above technical solution are as follows:

[0032] This utility model discloses a novel heat-insulating door device. When materials enter or leave the tunnel kiln via the transport device 11, the materials simultaneously contact the soft curtain 12 and the counterweight swing door assembly 13. After contacting the upper soft curtain 12, the materials are flexibly pushed open, while the lower counterweight swing door assembly 13 is pushed open by the materials. After the materials pass, the soft curtain 12 naturally falls back under its own weight and elasticity, and the counterweight swing door assembly 13 automatically rotates and closes, forming a complete seal between the inside and outside of the kiln. This novel heat-insulating door device provides a coordinated dynamic opening and closing mechanism, avoiding heat leakage under a single structure, ensuring efficient heat retention, and improving the overall heat insulation performance of the tunnel kiln. At the same time, the automated recovery mechanism reduces human intervention and improves production continuity and efficiency.

[0033] In one embodiment, the counterweight swing door assembly 13 includes:

[0034] A swing door 14, the bottom end of which is rotatably mounted inside the bottom of the fixed door frame 10 via a connecting shaft 15;

[0035] A counterweight mechanism 16 is installed at the bottom of the swing door 14 and faces away from the side of the swing door 14 that is in the direction of its flipping.

[0036] The working principle of the above technical solution is as follows:

[0037] The swing door 14 rotates and opens and closes with the connecting shaft 15 as the fulcrum. The counterweight mechanism 16 is installed on the back of the bottom of the swing door 14 to provide reverse gravity torque. When the material pushes the swing door 14 to open, the counterweight mechanism 16 is lifted. After the material passes through, the counterweight mechanism 16 falls and drives the swing door 14 to close.

[0038] In one embodiment, the bottom end of the swing door 14 rests against the bottom of the fixed door frame 10.

[0039] The beneficial effects of the above technical solution are as follows:

[0040] The bottom of the swing door 14 is attached to the bottom of the fixed door frame 10 to ensure a seamless seal when closed, preventing heat convection leakage from the bottom of the kiln.

[0041] In one embodiment, the distance between the bottom end of the material conveying device 11 and the bottom of the fixed door frame 10 is between 20-30cm.

[0042] like Figure 4 and Figure 5 As shown, in one embodiment, the counterweight mechanism 16 includes:

[0043] Mounting plate 17, the top of which is mounted on the swing door 14 via a flip shaft 18, and the swing door 14 is provided with a mounting bracket to facilitate fixing the flip shaft 18.

[0044] Lower locking rod 19, the lower locking rod 19 is installed on the mounting plate 17 away from the flip shaft 18;

[0045] Annular weights 20, and multiple annular weights 20 are fitted onto the mounting plate 17.

[0046] The working principle and beneficial effects of the above technical solution are as follows:

[0047] Mounting plate 17 is connected to swing door 14 via flip shaft 18, and lower locking rod 19 prevents annular weight 20 from slipping off; multiple annular weights 20 are stacked and sleeved on mounting plate 17 to provide adjustable gravity, allowing for flexible adjustment of weight, return speed and torque according to working conditions, ensuring stable closure and reducing heat loss. When swing door 14 is opened, the annular weights return to their original position due to gravity.

[0048] In one embodiment, the annular weight 20 has an installation notch 21 so that the annular weight 20 can be fitted onto the mounting plate 17.

[0049] The working principle and beneficial effects of the above technical solution are as follows:

[0050] The notch 21 is designed to allow the annular weight 20 to be fitted into the mounting plate 17 from the side.

[0051] Beneficial effects: Simplifies the process of adding and replacing weights, improving operational convenience; reduces maintenance time, and supports quick adjustment of gravity to match different material loads.

[0052] In one embodiment, the mounting plate 17 is fitted with a plug 22 for locking the mounting notch 21 on the side facing away from the swing door 14.

[0053] The working principle and beneficial effects of the above technical solution are as follows:

[0054] After the annular weight 20 is fitted onto the mounting plate 17 through the mounting notch 21, the annular weight 20 is manually rotated. Then, the insert plate 22 is inserted into the mounting plate 17, with the insert plate 22 located within the mounting notch 21, ensuring the positioning of the annular weight 20.

[0055] In one embodiment, the mounting plate 17 has a slot 23 on the side facing away from the swing door 14, and the insert plate 22 is inserted into the slot 23.

[0056] The beneficial effects of the above technical solution are as follows:

[0057] The slot 23 is designed to facilitate the insertion of the insert plate 22 onto the mounting plate 17.

[0058] In one embodiment, the width of the mounting notch 21 is greater than the thickness of the mounting plate 17.

[0059] In one embodiment, the top of the mounting plate 17 is thickened.

[0060] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A novel heat-insulating door device, characterized in that, include: A fixed door frame (10) is installed on the tunnel kiln, and a material conveying device (11) is sent into / out of the tunnel kiln from the fixed door frame (10). A soft curtain (12) and a counterweight swing door assembly (13) are distributed one above the other inside the fixed door frame (10) to form a closed structure that prevents heat loss.

2. The novel heat-insulating door device according to claim 1, characterized in that, The counterweight-type swing door assembly (13) includes: A swing door (14), the bottom end of which is rotatably mounted inside the bottom of a fixed door frame (10) via a connecting shaft (15); A counterweight mechanism (16) is installed at the bottom of the swing door (14) and faces away from the swing door (14) in the flipping direction.

3. The novel heat-insulating door device according to claim 2, characterized in that, The bottom end of the swing door (14) is attached to the bottom of the fixed door frame (10).

4. The novel heat-insulating door device according to claim 1, characterized in that, The distance between the bottom end of the material transport device (11) and the bottom of the fixed door frame (10) is between 20-30cm.

5. A novel heat-insulating door device according to claim 2, characterized in that, The counterweight mechanism (16) includes: Mounting plate (17), the top of which is mounted on the swing door (14) via a flip shaft (18); The lower locking rod (19) is mounted on the end of the mounting plate (17) away from the flip shaft (18); Annular weights (20), a plurality of the annular weights (20) are fitted onto the mounting plate (17).

6. A novel heat-insulating door device according to claim 5, characterized in that, The annular weight (20) has an installation notch (21) so that the annular weight (20) can be fitted onto the mounting plate (17).

7. A novel heat-insulating door device according to claim 6, characterized in that, The mounting plate (17) has a plug plate (22) for locking the mounting notch (21) on the side facing away from the swing door (14).

8. A novel heat-insulating door device according to claim 7, characterized in that, The mounting plate (17) has a slot (23) on the side facing away from the swing door (14), and the insert plate (22) is inserted into the slot (23).

9. A novel heat-insulating door device according to claim 6, characterized in that, The width of the mounting notch (21) is greater than the thickness of the mounting plate (17).

10. A novel heat-insulating door device according to claim 5, characterized in that, The top of the mounting plate (17) is thickened.

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