Normally closed door mechanism of dust removal room

Abstract

The utility model provides a dust removal room normally-closed door mechanism. The dust removal room normally-closed door mechanism mainly comprises a door frame, a first connecting rod, a second connecting rod, a shaft sleeve, a rotating shaft, a first connecting plate, a second connecting plate and the like. According to the door mechanism, through the unique design of the first L-shaped connecting plate and the second L-shaped connecting plate, good balance of the door plate in the moving process is achieved, and the door plate can be automatically closed by means of gravity without external force. In addition, the door mechanism further comprises a limiting groove, a sealing strip, a telescopic strip, a limiting block, a rolling wheel, an arc-shaped face, a collision block and other structures, and the stability and the sealing performance of the door mechanism are guaranteed. The technical scheme effectively solves the problems that a traditional door mechanism is low in efficiency and cannot be automatically controlled, and has the remarkable advantages of being efficient, energy-saving, safe and the like.

Description

Technical Field

[0001] The present application relates to the field of dust removal and cleaning equipment, and specifically to a normally closed door mechanism for a dust removal room. Background Art

[0002] In traditional dust removal room designs, the opening and closing of doors usually rely on manual operation or a simple spring mechanism. Although these traditional methods can meet usage requirements to a certain extent, they have many shortcomings in actual applications. For example, manual operation requires manpower input, is inefficient, and cannot achieve automatic control; while the spring mechanism has problems such as elastic fatigue and poor stability, which can easily cause damage to the door body and cannot adapt to usage requirements in different environments. The present application provides a new type of normally closed door mechanism for dust removal rooms, aiming to overcome the shortcomings of the existing technology. This mechanism realizes automatic opening and closing of the door by optimizing the design of the connecting rod and the connecting plate, reduces energy consumption and maintenance costs, and improves the stability and service life of the door body. Utility Model Content

[0003] The purpose of this application is to provide a dust collection room normally closed door mechanism, which is used to solve the technical problem that the dust collection room door relies on manual operation or a simple spring mechanism to open and close, which is inefficient and cannot be automatically controlled. To achieve the above purpose, this application provides the following technical solution: A dust collection room normally closed door mechanism, comprising:

[0004] A door frame, the door frame consisting of two vertical side frames and an upper frame;

[0005] a first connecting rod and a second connecting rod, wherein one end of each of the first connecting rod and the second connecting rod is fixedly connected to the frame, and the length of the first connecting rod is smaller than the length of the second connecting rod;

[0006] A shaft sleeve, wherein two shaft sleeves are respectively provided on the first connecting rod and the second connecting rod, and the two shaft sleeves are coaxially arranged;

[0007] A rotating shaft, the rotating shaft being sleeved in the two shaft sleeves, and the rotating shaft being rotatable in the shaft sleeves;

[0008] A first connecting plate and a second connecting plate, one end of the first connecting plate and the second connecting plate are connected to the rotating shaft, and the other end is connected to the door panel, and the length of the first connecting plate is smaller than the length of the second connecting plate.

[0009] Preferably, in the present technical solution, the first connecting plate and the second connecting plate are L-shaped.

[0010] Preferably, the present technical solution further comprises a limiting groove and a sealing strip, wherein the limiting groove is provided on the door panel, and the sealing strip is embedded in the limiting groove.

[0011] Preferably, the present technical solution further includes a telescopic strip and a limit block, wherein the telescopic strip is arranged at the limit slot, one end of the telescopic strip extends out of the limit slot, and the other end abuts against the limit block; one side of the limit block is fixedly connected to the sealing strip, and a slope is provided on the side of the limit block abutting against the telescopic strip, and the telescopic strip can slide in the limit slot to push the sealing strip out of the limit slot.

[0012] Preferably, the present technical solution further comprises a roller, wherein the roller is arranged at one end of the telescopic strip in contact with the inclined surface, and the roller can roll along the inclined surface.

[0013] Preferably, the present technical solution further comprises a curved surface, and the curved surface is provided at the protruding end of the telescopic strip.

[0014] Preferably, a rubber strip is provided on the sealing strip.

[0015] Preferably, the length of the sealing strip is equal to the width of the door panel.

[0016] Preferably, the present technical solution further comprises a collision block, and the collision block is arranged on the frame.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The present utility model provides a normally closed door mechanism for a dust removal room, the structural design of which is scientific and reasonable, and includes components such as a door frame, a first connecting rod, a second connecting rod, a shaft sleeve, a rotating shaft, a first connecting plate and a second connecting plate. The synergistic effect of these components makes the door mechanism more stable and reliable during operation. One end of the first connecting plate and the second connecting plate are both connected to the rotating shaft, and the other end is connected to the door panel, and the length of the first connecting plate is less than the length of the second connecting plate. This design enables the door panel to maintain a good balance during movement, and can be closed by gravity in the absence of external force. The present utility model has significant beneficial effects in improving the opening and closing efficiency of the dust removal room door, reducing energy consumption, enhancing stability, and improving safety. It provides a more reliable technical guarantee for the operation of the dust removal room door, and meets the current industrial production requirements for high efficiency, energy saving, and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram of a closed state of a normally closed door mechanism of a dust removal room proposed in an embodiment of the present application;

[0020] Figure 2 This is a three-dimensional schematic diagram of the open state of a normally closed door mechanism of a dust removal room proposed in an embodiment of the present application;

[0021] Figure 3This is a three-dimensional schematic diagram of the open state of a normally closed door mechanism of a dust removal room proposed in an embodiment of the present application from another perspective;

[0022] Figure 4 This is a schematic diagram of the cooperation between the sealing strip and the telescopic strip of the normally closed door mechanism of the dust removal room proposed in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of a partial structure of a normally closed door mechanism for a dust removal room proposed in an embodiment of the present application;

[0024] In the figure: 1. Door frame; 2. Side frame; 3. Upper frame; 4. First connecting rod; 5. Second connecting rod; 6. Bushing; 7. Rotating shaft; 8. First connecting plate; 9. Second connecting plate; 10. Door panel; 11. Limiting groove; 12. Sealing strip; 13. Telescopic strip; 14. Limiting block; 15. Inclined surface; 16. Roller; 17. Arc surface; 18. Rubber strip; 19. Collision block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] It should be noted that, in the description of this application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on this application.

[0027] Furthermore, it should be understood that for ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0028] It should be noted that like numbers and letters represent similar items in the following figures, so once an item is defined or described in one figure, it will not need to be further discussed and described in detail in the description of the subsequent figures.

[0029] In order to solve the technical problems in the background technology, such as Figure 1-5 As shown, the present application provides a technical solution: a normally closed door mechanism for a dust removal room, which has the following characteristics:

[0030] The door frame 1 consists of two vertical side frames 2 and an upper frame 3, forming a stable load-bearing structure that supports the entire door mechanism. The material of the door frame 1 can be selected based on actual needs, such as stainless steel or aluminum alloy, to ensure durability and environmental adaptability. One end of each first connecting rod 4 and second connecting rod 5 is fixedly connected to the same side frame 2, with the first connecting rod 4 located above the second connecting rod 5. The length of the first connecting rod 4 is shorter than that of the second connecting rod 5. Two bushings 6 are respectively attached to the first and second connecting rods 4, 5, and are coaxially arranged to provide rotational support for the rotating shaft 7. The axes of the two bushings 6 form an acute angle with the side frame 2. The rotating shaft 7 is sleeved within the bushings 6 and can rotate freely within them. It is connected to the door panel 10 via connecting plates 8 and 9, enabling the door panel 10 to rotate and open. The first and second connecting plates 8 and 9 are both connected to the rotating shaft 7 at one end and to the door panel 10 at the other end. The length of the first connecting plate 8 is shorter than that of the second connecting plate 9. When the door needs to be opened, the entire door panel 10 needs to overcome gravity and the entire center of gravity moves upward, so the mechanism can be normally closed under the action of gravity. When the door panel 10 needs to be opened, the user applies external force to rotate the door panel 10 around the rotating shaft 7 until it is fully opened.

[0031] It should be noted that the first connecting plate 8 and the second connecting plate 9 are L-shaped, one end of the vertical part of the L is connected to the rotating shaft 7, and the horizontal part of the L is connected to the door panel 10, which can increase the force-bearing area connected thereto and improve the stability of the mechanism.

[0032] Furthermore, a retaining groove 11 is provided around the perimeter of the door panel 10. This groove, in the form of an elongated groove, serves to restrict the insertion position of the sealing strip 12, ensuring good contact and sealing between the sealing strip 12 and the door panel 10. The sealing strip 12 is inserted into the retaining groove 11, and its shape matches the retaining groove 11, ensuring that the sealing strip 12 is securely embedded within the retaining groove 11. When the door panel 10 is closed, a tight seal is formed between the sealing strip 12 and the door frame 1, effectively preventing the intrusion of external factors such as dust and moisture, thereby improving the sealing performance of the door panel 10.

[0033] It should be noted that because the length of the first connecting rod 4 is shorter than that of the second connecting rod 5, and the length of the first connecting plate 8 is shorter than that of the second connecting plate 9, the central axes of the rotating shaft 7 and the sleeve 6 form a certain angle with the frame 2. Therefore, the door panel 10 will move upward during the opening process. If the upper end of the door panel 10 in the opening direction does not have sufficient distance for its movement, the door panel 10 needs to be shortened to allow for upward movement. At the same time, an automatically retractable sealing mechanism is provided that can extend beyond the door panel 10 to compensate for the height loss. This sealing mechanism includes a stop groove 11, a sealing strip 12, a retractable strip 13, and a stop block 14. The sealing strip 12, retractable strip 13, and stop block 14 are all disposed in the stop groove 11. The retractable strip 13 has one end extending from the stop groove 11, exposing the frame 2, and the other end abutting the stop block 14. The stop block 14 is fixedly connected to the sealing strip 12 on one side and abuts the retractable strip 13 on the other side, with the abutting surface being an inclined surface 15. When the door panel 10 is closed, the weight of the door panel 10 causes the expansion strip 13 to collide with the door frame 1. Under the action of external force, the expansion strip 13 slides in the limit groove 11, pushing the sealing strip 12 upward. A portion of the sealing strip 12 extends out of the limit groove 11, supplementing the height of the door panel 10, so that the door panel 10 is sealed with the door frame 1 when closed. When the door panel 10 is opened, the sealing strip 12 moves downward under the action of gravity, pressing the expansion strip 13. One end of the expansion strip 13 extends out of the limit groove 11, exposing the frame 2 and returning to its original state. The arrangement of the limit groove 11 and the sealing strip 12 allows the sealing strip 12 to expand and contract accordingly with the movement of the door panel 10 during the opening and closing process, ensuring a good sealing effect.

[0034] Furthermore, one end of the telescopic bar 13 contacts the inclined surface 15. The inclined surface 15 is designed as an inclined surface at a certain angle, and its function is to guide and support the movement of the roller 16. The roller 16 is arranged at the end of the telescopic bar 13 that contacts the inclined surface 15, and its structure is shown in the figure. The roller 16 is made of high-strength material to ensure its stability and durability during use. The width of the roller 16 is adapted to the width of the inclined surface 15. The roller 16 is connected to the telescopic bar 13 using a fixed pin, which allows the roller 16 to rotate freely while maintaining a fixed connection with the telescopic bar 13.

[0035] It should be noted that the extended end of the telescopic bar 13 is provided with a curved surface 17. This curved surface 17 is shaped like a circular arc and helps improve the stability and adaptability of the telescopic bar 13 during use. When in contact with the door frame 1, the curved surface 17 serves as a guide surface, facilitating the retraction of the telescopic bar 13.

[0036] It should be noted that a rubber strip 18 is provided at the upper end of the sealing strip 12. Made of rubber or silicone, this strip 18 is soft and provides a good seal. It fits snugly against the raised portion of the sealing strip 12. Its placement and length are identical to those of the sealing strip 12, but its width is slightly smaller. This arrangement improves overall sealing performance. When subjected to external pressure, the rubber strip 18 acts in concert with the sealing strip 12, ensuring it maintains a stable seal.

[0037] It should be noted that the sealing strip 12 is installed at the edge of the door panel 10, specifically at the side where the door panel 10 contacts the door frame 1. The design length of the sealing strip 12 is equal to the width of the door panel 10. This can improve the sealing performance.

[0038] It is noteworthy that the collision block 19 is located on the frame 2 at a position corresponding to the extension of the telescopic bar 13. The collision block 19 is made of plastic. It is tightly connected to the frame 2 via screws 20, ensuring that the collision block 19 can effectively absorb energy in the event of an impact, protecting the frame 2 from damage. The collision block 19 has a guiding surface that guides the telescopic bar 13 into the retaining groove 11.

[0039] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A normally closed door mechanism for a dust removal room, characterized in that: include: A door frame (1), the door frame (1) consisting of two vertical side frames (2) and an upper frame (3); A first connecting rod (4) and a second connecting rod (5), one end of each of the first connecting rod (4) and the second connecting rod (5) is fixedly connected to the frame (2), and the length of the first connecting rod (4) is shorter than the length of the second connecting rod (5); A shaft sleeve (6), wherein the two shaft sleeves (6) are respectively arranged on the first connecting rod (4) and the second connecting rod (5), and the two shaft sleeves (6) are coaxially arranged; A rotating shaft (7), wherein the rotating shaft (7) is sleeved in the two shaft sleeves (6), and the rotating shaft (7) can rotate in the shaft sleeves (6); A first connecting plate (8) and a second connecting plate (9), one end of each of the first connecting plate (8) and the second connecting plate (9) is connected to the rotating shaft (7), and the other end of each of the first connecting plate (8) and the second connecting plate (9) is connected to the door panel (10), and the length of the first connecting plate (8) is shorter than the length of the second connecting plate (9).

2. A normally closed door mechanism for a dust removal room according to claim 1, characterized in that: The first connecting plate (8) and the second connecting plate (9) are L-shaped.

3. A dust removal room normally closed door mechanism according to claim 1, characterized in that: It also includes a limiting groove (11) and a sealing strip (12), wherein the limiting groove (11) is arranged on the door panel (10), and the sealing strip (12) is embedded in the limiting groove (11).

4. A normally closed door mechanism for a dust removal room according to claim 3, characterized in that: The invention also includes a telescopic strip (13) and a limiting block (14), wherein the telescopic strip (13) is arranged at the limiting groove (11), one end of the telescopic strip (13) extends out of the limiting groove (11), and the other end abuts against the limiting block (14); one side of the limiting block (14) is fixedly connected to the sealing strip (12), and a slope (15) is provided on the side of the limiting block (14) abutting against the telescopic strip (13); the telescopic strip (13) can slide in the limiting groove (11) to push the sealing strip (12) out of the limiting groove (11).

5. A normally closed door mechanism for a dust removal room according to claim 4, characterized in that: It also includes a roller (16), which is arranged at one end of the telescopic strip (13) in contact with the inclined surface (15), and the roller (16) can roll along the inclined surface (15).

6. A dust removal room normally closed door mechanism according to claim 5, characterized in that: It also includes an arcuate surface (17), which is arranged at the protruding end of the telescopic strip (13).

7. A normally closed door mechanism for a dust removal room according to any one of claims 4 to 6, characterized in that: A rubber strip (18) is provided on the sealing strip (12).

8. A normally closed door mechanism for a dust removal room according to claim 7, characterized in that: The length of the sealing strip (12) is equal to the width of the door panel (10).

9. The normally closed door mechanism for a dust removal room according to claim 1, characterized in that: It also includes a collision block (19), which is arranged on the frame (2).

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