A seal structure for a rotary damper

Abstract

The utility model provides a kind of sealing structure of rotary air door, it is related to air conditioning equipment technical field, comprising: equipment frame body, the top of equipment frame body is equipped with air outlet, the top of equipment frame body is provided with air guide structure, the air guide structure includes air guide frame, the inboard of air guide frame is fixedly installed with two fixed frame, fixed column is fixedly installed between two fixed frame, the inboard of air guide frame is rotatably installed with several rotating shafts between the outboard of fixed column;The utility model, by being provided with air guide structure, can effectively switch operation to air door, and can be adjusted switch size according to demand, wherein the rectangular sealing strip of the side of several baffle is closed when air door, the other side of several baffle can be pressed together, to effectively carry out completely sealed processing to air guide frame, effectively avoid the situation that air door has gap and leaks, improve the sealing effect of structure.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, and in particular to a sealing structure for a rotary damper. Background Technology

[0002] In refrigeration equipment such as refrigerators, freezers, and air conditioners, the evaporator is the core refrigeration component. To adjust the airflow and temperature as needed, a damper is usually installed in the air outlet duct of the evaporator. Rotary dampers are widely used because of their simple structure and convenient control.

[0003] However, in the existing technology, the existing rotary dampers mainly rely on the tight fit between the damper plate and the damper frame to achieve the closing effect. However, due to the limitations of processing accuracy and assembly tolerance, there are small gaps between the damper plate and the frame. During use, due to the influence of material wear and deformation, these gaps will further increase, resulting in poor sealing. This causes cold air to leak from the gaps even when the damper is closed, resulting in cold loss and increased energy consumption. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a sealing structure for a rotary damper.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sealing structure for a rotating damper, comprising: an equipment frame, an air outlet at the top of the equipment frame, an air guide structure at the top of the equipment frame, the air guide structure including an air guide frame, two fixed frames fixedly installed on the inner side of the air guide frame, a fixed column fixedly installed between the two fixed frames, a plurality of rotating shafts rotatably installed between the outer side of the fixed column and the inner side of the air guide frame, baffles fixedly installed on the outer side of each of the plurality of rotating shafts, a rectangular sealing strip fixedly installed on one side of each of the plurality of baffles, one end of each of the plurality of rotating shafts passing through the air guide frame and rotatably connected to the air guide frame, a rotating ring rotatably installed on the outer side of the air guide frame, a plurality of side columns fixedly installed on the outer side of the rotating ring, a rotating block fixedly installed on one end of each of the plurality of rotating shafts, and a connecting structure provided between the air guide frame and the equipment frame.

[0006] In a preferred embodiment, each of the rotating blocks is provided with a rectangular sliding groove, and the side posts are respectively disposed inside the rectangular sliding grooves and slide in contact with the rotating blocks.

[0007] In a preferred embodiment, a toothed ring is fixedly installed on the top of the rotating ring, a fixed seat is fixedly installed on the outer side of the air guide frame, a support seat is fixedly installed on the top of the fixed seat, and a gear is rotatably installed on the top of the support seat, with the toothed ring and the gear meshing together.

[0008] In a preferred embodiment, a motor is fixedly installed at the bottom of the support base, and the output end of the motor passes through the support base and is fixedly connected to a gear.

[0009] In a preferred embodiment, the connection structure includes two mounting blocks and two U-shaped blocks. The two mounting blocks are fixedly mounted on the outside of the air guide frame, and the two U-shaped blocks are fixedly mounted on the top of the equipment frame. A mounting bracket is fixedly mounted on one side of each U-shaped block, and two return springs are fixedly mounted on the inside of the mounting bracket. A movable block is fixedly mounted on one end of each of the two return springs, and an insert block is fixedly mounted between the two movable blocks.

[0010] In a preferred embodiment, one side of the insert block passes through one side of the U-shaped block and slides in contact with the U-shaped block, the other side of the insert block passes through the mounting bracket and slides in contact with the mounting bracket, a connecting block is fixedly installed on the other side of the insert block, and a pull ring is fixedly installed on one side of the connecting block.

[0011] In a preferred embodiment, two sleeve posts are fixedly installed on the top of the equipment frame, the inner diameter of the two pull rings is larger than the diameter of the two sleeve posts, and a slot is opened on one side of each of the two mounting blocks, with the size of the insertion block matching the slot.

[0012] In a preferred embodiment, an annular sealing strip is fixedly installed at the bottom of the air guide frame, and a sealing groove is provided at the top of the equipment frame, with the annular sealing strip and the sealing groove being of matching size.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model, through its air-guiding structure, can effectively open and close the damper, and the opening and closing size can be adjusted according to needs. When the damper is closed, the rectangular sealing strips on one side of the baffles can press the other side of the baffles together, thereby effectively sealing the air guide frame completely, effectively preventing air leakage from gaps in the damper, and improving the sealing effect of the structure. 2. By pulling the two pull rings, the two insert blocks are moved out of the slots on one side of the two mounting blocks, thus removing the limiting fixation of the two mounting blocks. At this time, the air guide frame can be removed from the top of the equipment frame for maintenance. The operation is simple and does not require the use of additional tools by the staff, which improves the convenience of the structure. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the sealing structure of a rotary damper provided by this utility model.

[0015] Figure 2 This is a demonstration diagram of the open state of the sealing structure of a rotary damper provided by this utility model.

[0016] Figure 3 A schematic diagram of the air guide structure of a sealing structure for a rotary damper provided by this utility model.

[0017] Figure 4 A schematic diagram of the split structure of the sealing structure of a rotary damper provided by this utility model.

[0018] Figure 5 This utility model provides a sealing structure for a rotary damper. Figure 4 Enlarged view of the structure at point A.

[0019] Legend: 11. Equipment frame; 12. Air outlet; 2. Air guide structure; 21. Air guide frame; 22. Fixing frame; 23. Fixing column; 24. Rotating shaft; 25. Baffle; 26. Rectangular sealing strip; 27. Rotating ring; 28. Side column; 29. ​​Rotating block; 210. Gear ring; 211. Fixing seat; 212. Support seat; 213. Gear; 214. Motor; 3. Connection structure; 31. Mounting block; 32. U-shaped block; 33. Mounting bracket; 34. Return spring; 35. Moving block; 36. Insert block; 37. Connecting block; 38. Pull ring; 39. Sleeve post; 310. Slot; 311. Annular sealing strip; 312. Sealing groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0021] like Figure 1-4As shown, this utility model provides a technical solution: a sealing structure for a rotary damper, comprising: an equipment frame 11, an air outlet 12 on the top of the equipment frame 11, an air guide structure 2 on the top of the equipment frame 11, the air guide structure 2 including an air guide frame 21, two fixed frames 22 fixedly installed on the inner side of the air guide frame 21, a fixed column 23 fixedly installed between the two fixed frames 22, a plurality of rotating shafts 24 rotatably installed between the outer side of the fixed column 23 and the inner side of the air guide frame 21, baffles 25 fixedly installed on the outer side of each of the plurality of rotating shafts 24, a rectangular sealing strip 26 fixedly installed on one side of each of the plurality of baffles 25, one end of each of the plurality of rotating shafts 24 passing through the air guide frame 21 and rotatably connected to the air guide frame 21, and a rotating ring 27 rotatably installed on the outer side of the air guide frame 21. Several side columns 28 are fixedly installed on the outside of the 7. A rotating block 29 is fixedly installed on one end of several rotating shafts 24. A connecting structure 3 is provided between the air guide frame 21 and the equipment frame 11. Several rotating blocks 29 are provided with rectangular sliding grooves. Several side columns 28 are respectively set in several rectangular sliding grooves and slide in contact with several rotating blocks 29 respectively. A toothed ring 210 is fixedly installed on the top of the rotating ring 27. A fixed seat 211 is fixedly installed on the outside of the air guide frame 21. A support seat 212 is fixedly installed on the top of the fixed seat 211. A gear 213 is rotatably installed on the top of the support seat 212. The toothed ring 210 and the gear 213 are meshed and connected. A motor 214 is fixedly installed on the bottom of the support seat 212. The output end of the motor 214 passes through the support seat 212 and is fixedly connected to the gear 213.

[0022] In this embodiment, the two fixed brackets 22 can effectively support the fixed column 23, ensuring that the several rotating shafts 24 on the outside of the fixed column 23 are in a stable state. When the several rotating shafts 24 rotate to different angles, the opening and closing sizes of the several baffles 25 will also be different, thereby effectively adjusting the air volume of the damper accordingly. The rectangular sealing strips 26 installed on one side of the several baffles 25 can press the rectangular sealing strip 26 on one side of the previous baffle 25 against the next baffle when the several baffles 25 are in the closed state. On the other side of 25, a loop is achieved, and several rectangular sealing strips 26 can effectively seal the gaps generated when several baffles 25 are combined, thus ensuring that there is no air leakage when several baffles 25 are closed, improving the practicality of the structure. Through the rectangular sliding groove opened in the rotating block 29, several side columns 28 can be effectively moved inside the rectangular sliding groove of several rotating blocks 29 when the rotating ring 27 rotates, thereby driving several side columns 28 to rotate, so as to achieve the synchronous rotation of several rotating shafts 24. Example

[0023] like Figure 1-5As shown, the connecting structure 3 includes two mounting blocks 31 and two U-shaped blocks 32. Both mounting blocks 31 are fixedly mounted on the outside of the air guide frame 21, and both U-shaped blocks 32 are fixedly mounted on the top of the equipment frame 11. A mounting bracket 33 is fixedly mounted on one side of each U-shaped block 32, and two return springs 34 are fixedly mounted on the inner side of the mounting bracket 33. A moving block 35 is fixedly mounted on one end of each of the two return springs 34, and an insert block 36 is fixedly mounted between the two moving blocks 35. One side of the insert block 36 passes through one side of the U-shaped block 32 and slides in contact with it; the other side of the insert block 36 passes through... Mounting bracket 33 and sliding contact with mounting bracket 33, connecting block 37 is fixedly installed on the other side of insert block 36, pull ring 38 is fixedly installed on one side of connecting block 37, two sleeve posts 39 are fixedly installed on the top of equipment frame 11, the inner diameter of the two pull rings 38 is larger than the diameter of the two sleeve posts 39, slots 310 are opened on one side of the two mounting blocks 31, the size of insert block 36 matches the size of slot 310, annular sealing strip 311 is fixedly installed on the bottom of air guide frame 21, sealing groove 312 is opened on the top of equipment frame 11, and the size of annular sealing strip 311 and sealing groove 312 matches the size of sealing strip 311.

[0024] In this embodiment, the insertion block 36 passes through one side of the U-shaped block 32 and the mounting bracket 33, effectively limiting the movement of the insertion block 36 through the U-shaped block 32 and the mounting bracket 33. This ensures that the insertion block 36 can be stably inserted into the slot 310 of the mounting block 31 for limiting. The pull ring 38 and the sleeve post 39 cooperate, allowing the operator to pull the pull ring 38 to be placed on the outside of the sleeve post 39 during installation, keeping the insertion block 36 in a pulled-out state without the operator having to pull it continuously. This facilitates the operator's disassembly and assembly of the air guide frame 21. The annular sealing strip 311 and the sealing groove 312 cooperate, effectively ensuring that when the air guide frame 21 is placed on top of the equipment frame 11, the annular sealing strip 311 is inserted into the sealing groove 312, thus preventing air leakage at the connection between the equipment frame 11 and the air guide frame 21.

[0025] Working principle: like Figure 1-5As shown, during use, when the damper of the equipment frame 11 needs to be opened, the motor 214 is started. (The specific model of motor 214 is not described here; the model should be based on the compatible equipment.) The motor 214 drives the gear 213 to rotate, which in turn drives the gear ring 210 to mesh and rotate, causing the rotating ring 27 to rotate accordingly. This causes several side columns 28 to perform circular motion, allowing them to slide within the rectangular grooves of several rotating blocks 29, thus rotating the rotating blocks 29 and consequently driving several rotating shafts 24 to rotate. The rotation causes several baffles 25 to flip, changing the air guide frame 21 from a closed state to an open state. When it needs to be changed to a closed state, the motor 214 is started in reverse, which drives several baffles 25 to rotate in the opposite direction for the closing operation. Then, the rectangular sealing strips 26 on one side of several baffles 25 press the other side of several baffles 25 together, thereby effectively sealing the air guide frame 21 completely, effectively preventing air leakage from gaps in the air door, and improving the sealing effect of the structure. When the air guide frame 21 needs to be disassembled for maintenance, pull the two pull rings 38 to move the two insert blocks 36 out of the slots 310 on one side of the two mounting blocks 31, thus removing the limiting fixation of the two mounting blocks 31. At this time, the air guide frame 21 can be removed from the top of the equipment frame 11 for maintenance. The operation is simple and does not require the use of additional tools by the staff, which improves the convenience of the structure. After maintenance is completed, place the air guide frame 21 on the top of the equipment frame 11, insert the annular sealing strip 311 into the sealing groove 312, place the two mounting blocks 31 into the two U-shaped blocks 32 respectively, and then pull the two pull rings 38 from the outside of the two sleeves 39. Through the elastic action of the return spring 34, the insert blocks 36 can be inserted into the slots 310 on one side of the mounting blocks 31, thereby completing the installation of the air guide frame 21.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sealing structure for a rotary damper, characterized in that, include: The equipment frame (11) has an air outlet (12) at its top. The top of the equipment frame (11) is provided with an air guide structure (2). The air guide structure (2) includes an air guide frame (21). Two fixed frames (22) are fixedly installed on the inner side of the air guide frame (21). A fixed column (23) is fixedly installed between the two fixed frames (22). Several rotating shafts (24) are rotatably installed between the outer side of the fixed column (23) and the inner side of the air guide frame (21). The outer sides of the several rotating shafts (24) are all fixed. A baffle (25) is installed, and a rectangular sealing strip (26) is fixedly installed on one side of each of the baffles (25). One end of each of the rotating shafts (24) passes through the air guide frame (21) and is rotatably connected to the air guide frame (21). A rotating ring (27) is rotatably installed on the outside of the air guide frame (21). A number of side columns (28) are fixedly installed on the outside of the rotating ring (27). A rotating block (29) is fixedly installed on one end of each of the rotating shafts (24). A connecting structure (3) is provided between the air guide frame (21) and the equipment frame (11).

2. The sealing structure of a rotary damper according to claim 1, characterized in that: Each of the rotating blocks (29) is provided with a rectangular sliding groove, and each of the side pillars (28) is respectively disposed inside the rectangular sliding groove and slides in contact with each of the rotating blocks (29).

3. The sealing structure of a rotary damper according to claim 1, characterized in that: A toothed ring (210) is fixedly installed on the top of the rotating ring (27), a fixed seat (211) is fixedly installed on the outer side of the air guide frame (21), a support seat (212) is fixedly installed on the top of the fixed seat (211), and a gear (213) is rotatably installed on the top of the support seat (212). The toothed ring (210) and the gear (213) are meshed together.

4. The sealing structure of a rotary damper according to claim 3, characterized in that: A motor (214) is fixedly installed at the bottom of the support base (212). The output end of the motor (214) passes through the support base (212) and is fixedly connected to the gear (213).

5. The sealing structure of a rotary damper according to claim 1, characterized in that: The connection structure (3) includes two mounting blocks (31) and two U-shaped blocks (32). The two mounting blocks (31) are fixedly installed on the outside of the air guide frame (21), and the two U-shaped blocks (32) are fixedly installed on the top of the equipment frame (11). A mounting bracket (33) is fixedly installed on one side of the U-shaped block (32). Two return springs (34) are fixedly installed on the inside of the mounting bracket (33). A moving block (35) is fixedly installed at one end of each of the two return springs (34), and an insert block (36) is fixedly installed between the two moving blocks (35).

6. The sealing structure of a rotary damper according to claim 5, characterized in that: One side of the insert (36) passes through one side of the U-shaped block (32) and slides in contact with the U-shaped block (32). The other side of the insert (36) passes through the mounting bracket (33) and slides in contact with the mounting bracket (33). A connecting block (37) is fixedly installed on the other side of the insert (36). A pull ring (38) is fixedly installed on one side of the connecting block (37).

7. The sealing structure of a rotary damper according to claim 6, characterized in that: Two sleeves (39) are fixedly installed on the top of the equipment frame (11). The inner diameter of the two pull rings (38) is larger than the diameter of the two sleeves (39). A slot (310) is opened on one side of each of the two mounting blocks (31). The size of the insert (36) matches that of the slot (310).

8. The sealing structure of a rotary damper according to claim 7, characterized in that: The bottom of the air guide frame (21) is fixedly installed with an annular sealing strip (311), and the top of the equipment frame (11) is provided with a sealing groove (312). The annular sealing strip (311) and the sealing groove (312) are matched in size.

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