Skid-mounted equipment safety door sealing device
By using a combination of sealing frame, electromagnet and airbag in the safety door of skid-mounted equipment, the problem of poor sealing caused by assembly tolerance is solved, achieving higher sealing performance and stability, and reducing the entry of dust and foreign objects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-03
Smart Images

Figure CN224079015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of a safety door sealing device for skid-mounted equipment, and more particularly to a safety door sealing device for skid-mounted equipment. Background Technology
[0002] The entrance of the electric control skid and the prefabricated substation is equipped with a door to seal the entrance and reduce the entry of dust and foreign objects into the electric control skid and the prefabricated substation.
[0003] Chinese patent CN206233826U discloses a sealing device for a skid-mounted equipment safety door. It primarily solves the problem of existing skid-mounted equipment safety doors failing to seal against dust, allowing dust and foreign objects to easily enter the skid. The door body is connected to a door frame via hinges, with a base at the bottom of the door frame. The door body is equipped with an anti-theft lock and locking rod, and an anti-theft bolt with corresponding insertion holes on the door frame. A reinforcing plate is installed on the door frame, and a sealing rubber strip is installed at the contact point between the door body's groove and the door frame. This skid-mounted equipment safety door sealing device not only solves the problem of dust sealing on the skid door but also helps to address the noise issue during the opening and closing of existing door panels.
[0004] Existing skid-mounted equipment safety door sealing devices suffer from gaps between the door and frame after closing due to assembly tolerances and other factors. Under different internal and external pressures, the door may wobble, resulting in a poor seal and allowing dust to enter the electrical control skid and the prefabricated substation through the gaps. To overcome these disadvantages, this utility model provides a skid-mounted equipment safety door sealing device. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a safety door sealing device for skid-mounted equipment.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a skid-mounted equipment safety door sealing device, including a door frame, a sealing frame fixedly connected to the front side of the door frame, a door panel provided inside the sealing frame, a hinge provided between the door panel and the sealing frame, a door lock provided on the left side of the door panel, several electromagnets embedded in the front side of the door frame, magnetic plates fixedly connected to the positions corresponding to the electromagnets on the rear side of the door panel, a slot is opened at the inner circle of the front side of the door frame, an airbag is fixedly connected inside the slot, a connecting frame is fixedly connected to the left end of the inner side of the door frame, a groove is opened in the connecting frame, a push switch is fixedly connected inside the groove, and a control housing is fixedly connected to the left end of the rear side of the door frame.
[0007] Furthermore, a first sealing ring is fixedly connected to the rear side of the door panel at the position corresponding to the slot, and the first sealing ring can be engaged with the slot.
[0008] Furthermore, a second sealing ring is fixedly connected to the rear side of the sealing frame, and the door frame 7 is fixedly connected to the door opening of the skid-mounted equipment. The sealing performance between the door frame 7 and the door opening can be improved by the sealing frame 1 and the second sealing ring 18.
[0009] Furthermore, the door lock includes a lock cylinder and front and rear panels. The lock cylinder is located inside the door panel. The front and rear panels are respectively fixedly connected to the front and rear sides of the door panel. The front side of the lock cylinder is provided with an unlocking hole, the rear side of the lock cylinder is provided with a deadbolt knob, the left side of the lock cylinder is provided with a bolt, and both the front and rear panels are provided with handles.
[0010] Furthermore, an air pump and a battery are fixedly connected inside the control housing, and a connecting pipe is fixedly connected between the output end of the air pump and the airbag. A solenoid valve and a pressure sensor are installed on the connecting pipe.
[0011] Furthermore, a first connecting line is provided between the positive terminal of the battery and the positive terminal of the air pump, and a first switch is provided on the first connecting line. A third connecting line is provided between the negative terminal of the battery and the press switch, and a second connecting line is provided between the negative terminal of the air pump and the press switch. The solenoid valve and the pressure sensor are both electrically connected to the battery. After the press switch is pressed by the locking tongue, the electromagnet and the air pump are energized. The electromagnet attracts the magnetic plate, and the air pump pumps air into the airbag through the connecting pipe, causing the airbag to inflate. When the pressure sensor detects that the pressure is sufficient, the solenoid valve closes, the first switch opens, and the air pump stops pumping air.
[0012] The beneficial effects of this utility model are:
[0013] In use, this utility model provides a safety door sealing device for skid-mounted equipment. The door frame is fixedly connected to the door opening of the skid-mounted equipment. The sealing frame and the second sealing ring improve the sealing performance between the door frame and the door opening. The electromagnet is energized when the door is closed and the latch is pressed against the switch, which magnetically attracts the magnetic plate, thereby improving the connection between the door panel and the door frame. The first sealing ring can engage with the slot, and the airbag can be inflated to further improve the sealing performance between the door panel and the door frame. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 : Front view of this utility model;
[0016] Figure 2 : Working principle diagram of this utility model;
[0017] Figure 3 : A schematic diagram of the installation structure of the connecting frame of this utility model;
[0018] Figure 4 : A schematic diagram of the door frame structure of this utility model;
[0019] Figure 5 : Schematic diagram of the control housing structure of this utility model.
[0020] The attached figures are labeled as follows:
[0021] 1. Sealing frame; 2. Door panel; 3. Hinge; 4. Door lock; 5. Handle; 6. Lock hole; 7. Door frame; 8. Electromagnet; 9. Groove; 10. Airbag; 11. Magnetic plate; 12. First sealing ring; 13. Deadbolt knob; 14. Lock tongue; 15. Connecting frame; 16. Groove; 17. Push switch; 18. Second sealing ring; 19. Control housing; 20. Connecting pipe; 21. Air pump; 22. Solenoid valve; 23. Pressure sensor; 24. First connecting wire; 25. First switch; 26. Battery; 27. Second connecting wire; 28. Third connecting wire. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figure 1-5As shown, a safety door sealing device for skid-mounted equipment is disclosed, comprising a door frame 7, a sealing frame 1 fixedly connected to the front side of the door frame 7, a door panel 2 disposed inside the sealing frame 1, a hinge 3 disposed between the door panel 2 and the sealing frame 1, a door lock 4 disposed on the left side of the door panel 2, several electromagnets 8 embedded in the front side of the door frame 7, magnetic plates 11 fixedly connected to the rear side of the door panel 2 at positions corresponding to the electromagnets 8, a slot 9 opened at the inner circle of the front side of the door frame 7, an airbag 10 fixedly connected inside the slot 9, a connecting frame 15 fixedly connected to the left end of the inner side of the door frame 7, a groove 16 opened in the connecting frame 15, a push switch 17 fixedly connected inside the groove 16, and a control housing 19 fixedly connected to the left end of the rear side of the door frame 7.
[0024] As shown in the figure, a first sealing ring 12 is fixedly connected to the position on the back side of the door panel 2 corresponding to the slot 9. The first sealing ring 12 can be engaged with the slot 9.
[0025] As shown in the figure, a second sealing ring 18 is fixedly connected to the rear side of the sealing frame 1, and the door frame 7 is fixedly connected to the door opening of the skid-mounted equipment. The sealing performance between the door frame 7 and the door opening can be improved by the sealing frame 1 and the second sealing ring 18.
[0026] As shown in the figure, the door lock 4 includes a lock cylinder and front and rear panels. The lock cylinder is located inside the door panel 2. The front and rear panels are fixedly connected to the front and rear sides of the door panel 2, respectively. The front side of the lock cylinder is provided with an unlocking hole 6, the rear side of the lock cylinder is provided with a deadbolt knob 13, the left side of the lock cylinder is provided with a bolt 14, and both the front and rear panels are provided with handles 5.
[0027] As shown in the figure, an air pump 21 and a battery 26 are fixedly connected inside the control housing 19. A connecting pipe 20 is fixedly connected between the output end of the air pump 21 and the airbag 10. A solenoid valve 22 and a pressure sensor 23 are installed on the connecting pipe 20. A first connecting line 24 is installed between the positive terminal of the battery 26 and the positive terminal of the air pump 21. A first switch 25 is installed on the first connecting line 24. A third connecting line 28 is installed between the negative terminal of the battery 26 and the press switch 17. A second connecting line 27 is installed between the negative terminal of the air pump 21 and the press switch 17. The solenoid valve 22 and the pressure sensor 23 are both electrically connected to the battery 26. After the press switch 17 is pressed by the locking tongue 14, the electromagnet 8 and the air pump 21 are energized. The electromagnet 8 attracts the magnetic plate 11. The air pump 21 pumps air into the airbag 10 through the connecting pipe 20, causing the airbag 10 to inflate. When the pressure sensor 23 detects that the pressure is sufficient, the solenoid valve 22 closes and the first switch 25 opens, causing the air pump 21 to stop pumping air.
[0028] Working principle: During use, the door frame 7 is fixedly connected to the door opening of the skid-mounted equipment. The sealing frame 1 and the second sealing ring 18 can improve the sealing between the door frame 7 and the door opening. The electromagnet 8 can be energized after the door panel 2 is closed and the latch 14 is pressed against the push switch 17, and the magnetic plate 11 is magnetically attracted, thereby improving the connection between the door panel and the door frame 7. The first sealing ring 12 can be engaged with the slot 9. The airbag 10 is inflated. Specifically, after the push switch 17 is pressed by the latch 14, the electromagnet 8 and the air pump 21 are energized. The electromagnet 8 attracts the magnetic plate 11, and the air pump 21 pumps air into the airbag 10 through the connecting pipe 20, causing the airbag 10 to inflate. When the pressure sensor 23 detects that the pressure is sufficient, the solenoid valve 22 closes and the first switch 25 is opened, causing the air pump 21 to stop pumping air, thereby further improving the sealing between the door panel 2 and the door frame 7.
[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A safety door sealing device for skid-mounted equipment, comprising a door frame (7), characterized in that: A sealing frame (1) is fixedly connected to the front side of the door frame (7). A door panel (2) is provided inside the sealing frame (1). A hinge (3) is provided between the door panel (2) and the sealing frame (1). A door lock (4) is provided on the left side of the door panel (2). Several electromagnets (8) are embedded in the front side of the door frame (7). Magnetic plates (11) are fixedly connected to the rear side of the door panel (2) at positions corresponding to the electromagnets (8). A slot (9) is opened at the inner circle of the front side of the door frame (7). An airbag (10) is fixedly connected inside the slot (9). A connecting frame (15) is fixedly connected to the left end of the inner side of the door frame (7). A groove (16) is opened inside the connecting frame (15). A push switch (17) is fixedly connected inside the groove (16). A control housing (19) is fixedly connected to the left end of the rear side of the door frame (7).
2. The skid-mounted equipment safety door sealing device according to claim 1, characterized in that: A first sealing ring (12) is fixedly connected to the rear side of the door panel (2) at the position corresponding to the slot (9).
3. The skid-mounted equipment safety door sealing device according to claim 1, characterized in that: A second sealing ring (18) is fixedly connected to the rear side of the sealing frame (1).
4. The skid-mounted equipment safety door sealing device according to claim 1, characterized in that: The door lock (4) includes a lock cylinder and front and rear panels. The lock cylinder is located inside the door panel (2). The front and rear panels are respectively fixedly connected to the front and rear sides of the door panel (2). The front side of the lock cylinder is provided with an unlocking hole (6). The rear side of the lock cylinder is provided with a deadbolt knob (13). The left side of the lock cylinder is provided with a bolt (14). The front and rear panels are each provided with a handle (5).
5. A skid-mounted equipment safety door sealing device according to claim 1, characterized in that: An air pump (21) and a battery (26) are fixedly connected inside the control housing (19). A connecting pipe (20) is fixedly connected between the output end of the air pump (21) and the airbag (10). A solenoid valve (22) and a pressure sensor (23) are provided on the connecting pipe (20).
6. A skid-mounted equipment safety door sealing device according to claim 5, characterized in that: A first connecting line (24) is provided between the positive terminal of the battery (26) and the positive terminal of the air pump (21). A first switch (25) is provided on the first connecting line (24). A third connecting line (28) is provided between the negative terminal of the battery (26) and the push switch (17). A second connecting line (27) is provided between the negative terminal of the air pump (21) and the push switch (17). The solenoid valve (22) and the pressure sensor (23) are both electrically connected to the battery (26).
Citation Information
Patent Citations
Skid -mounted device emergency exit sealing device
CN206233826U