A sealing structure of an outdoor switch box

Abstract

This utility model discloses a sealing structure for an outdoor switch box, relating to the field of switch box sealing structures. The sealing structure includes a cabinet body with an inlet / outlet formed in the center of the cabinet panel. The four corners of the inlet / outlet are rounded. This sealing structure utilizes a built-in clamping ring and a symmetrical double-push bar linkage design. When the cabinet door is closed, the clamping ring applies vertical pressure to the sealing part to form a uniform compression seal, while the push bars symmetrically expand to drive the cabinet door to fully conform to the panel, avoiding uneven force on one side of the locking pin. This structure simultaneously releases the hinge load when locked, significantly reducing the risk of hinge deformation. Furthermore, the sealing gasket is pressed tightly against the cabinet door by the clamping ring after the door is closed and locked, achieving a good seal and balancing long-term durability and sealing reliability.

Description

Technical Field

[0001] This utility model relates to the field of switch box sealing structure, and more particularly to a sealing structure for an outdoor switch box. Background Technology

[0002] Traditional outdoor switch box cabinet door seals typically employ a structure with a sealing gasket on the outer side of the panel, relying on the pressure of the gasket when the cabinet door closes to achieve a seal. Increasing the gasket thickness to improve sealing performance can lead to difficulty closing the far end of the door, requiring greater closing force and potentially causing hinge deformation and damage over time. Furthermore, the traditional single-sided plate-like locking pin structure continuously bears the elastic reaction force of the sealing gasket after locking, easily causing stress concentration damage to the locking pin and hinge, making it difficult to balance sealing performance with structural durability. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a sealing structure for outdoor switch boxes, which solves the problem that existing outdoor switch boxes cannot simultaneously achieve both sealing performance and structural durability.

[0004] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0005] A sealing structure for an outdoor switch box includes a cabinet body and a cabinet door. A sealing gasket is fixed on the inner side of the cabinet panel, and one end of the sealing gasket away from the inner wall of the panel extends into the cabinet inlet and outlet on the panel to form a sealing part.

[0006] A locking structure is installed on the inner side of the cabinet door. The locking structure is used to lock the cabinet door in the closed state and press the sealing part against the inner side of the cabinet door. The locking structure includes a pressing ring that is slidably installed on the inner side of the panel, a push bar that is symmetrically slidably installed on the inner side of the cabinet door, and an opening and closing structure installed on the cabinet door to drive the two push bars to open and close. Operating the opening and closing structure causes the two push bars to expand. The inclined surface at the end of the push bar forces the pressing ring to move and abut against the inner wall of the panel, and presses the sealing part against the inner side of the cabinet door. The cabinet door presses against the outer wall of the panel.

[0007] Optionally, the two push bars are arranged horizontally, with the two push bars located in the middle of the cabinet door along its length. A support sleeve is slidably fitted on the outer side of the push bar, and the support sleeve is fixed to the inner wall of the cabinet door. The four corners of the cabinet entrance and exit are all rounded, and the four corners of the sealing gasket are also rounded.

[0008] Optionally, a limiting ring is fixed to the inner wall of the panel, the limiting ring surrounds the cabinet entrance and exit, and a sliding ring is formed at one end of the abutment ring near the limiting ring. The sliding ring is slidably sleeved on the inner wall of the limiting ring. Two limiting blocks are symmetrically fixed on the side of the limiting ring away from the inner wall of the panel, and the limiting blocks limit the sliding ring within the space enclosed by the panel and the limiting ring.

[0009] Optionally, the end of the retaining ring away from the sliding ring has a contact portion that bends and extends toward the cabinet door. The contact portion is directly opposite the sealing portion. When the cabinet door is closed, the push bar is located inside the cabinet. The inclined surface of the push bar is directly opposite the corner of the retaining ring. The contact portion extends toward the center of the cabinet entrance and exit to form an auxiliary contact ring.

[0010] Optionally, the opening and closing structure includes a rotating shaft rotatably connected to the cabinet door via a bearing, with the end face of the rotating shaft facing the center of the cabinet entrance and exit. A handle is fixed to one end of the rotating shaft located on the outside of the cabinet door, and a door lock structure is installed on the handle. The door lock structure is used to lock the angle of the handle.

[0011] The drive plate is fixed at one end of the rotating shaft inside the cabinet door. Two arc-shaped drive grooves are centrally symmetrically opened on the drive plate. A drive column is fixed at the opposite end of the two push bars. The axial direction of the drive column, the axial direction of the drive plate, and the axial direction of the rotating shaft are the same. The axis of the drive plate coincides with the axis of the rotating shaft. The end of the drive column is inserted into the arc-shaped drive groove.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] This invention utilizes a built-in clamping ring and symmetrical double push bars in a linked design. When the cabinet door closes, the clamping ring applies vertical pressure to the sealing part, forming a uniform compression seal. Simultaneously, the push bars symmetrically expand, driving the entire cabinet door to fit against the panel, avoiding uneven force on one side of the locking pin. This structure simultaneously releases the hinge load when locking, significantly reducing the risk of hinge deformation. Furthermore, the sealing gasket is firmly pressed against the cabinet door by the clamping ring after the door is closed and locked, achieving a good seal and ensuring both long-term durability and sealing reliability. Attached Figure Description

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

[0015] Figure 2 For the present utility model Figure 1 Enlarged view of point A.

[0016] Figure 3 This is a schematic diagram of the internal structure of the cabinet of this utility model.

[0017] Figure 4 For the present utility model Figure 3 Enlarged view of point B.

[0018] Figure 5 This is a schematic diagram of the limiting ring structure of this utility model.

[0019] Figure 6 For the present utility model Figure 5 Enlarged view of point C.

[0020] Figure 7This is a schematic diagram of the auxiliary contact ring structure of this utility model.

[0021] Figure 8 This is a schematic diagram of the cabinet door in the closed state of this utility model.

[0022] Figure 9 For the present utility model Figure 8 Enlarged view of point D.

[0023] Figure 10 This is a schematic diagram of the drive disk structure of this utility model.

[0024] Reference numerals in the attached drawings: 1. Cabinet body; 101. Panel; 1011. Cabinet entrance / exit; 2. Cabinet door; 3. Sealing gasket; 301. Sealing part; 4. Limiting ring; 5. Anchoring ring; 501. Sliding ring; 502. Anchoring part; 5021. Auxiliary anchoring ring; 6. Limiting block; 7. Push bar; 701. Inclined surface; 8. Support sleeve; 9. Rotating shaft; 10. Turning handle; 11. Drive disc; 12. Arc-shaped drive groove; 13. Drive column; 14. Door lock; 1401. Lock tongue; 15. Lock groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figures 1 to 10 This embodiment provides a sealing structure for an outdoor switch box, including a cabinet 1. A cabinet inlet / outlet 1011 is formed in the middle of the panel 101 of the cabinet 1. The four corners of the cabinet inlet / outlet 1011 are all rounded. A cabinet door 2 is connected to the side of the cabinet 1 near the cabinet inlet / outlet 1011 by a hinge. A sealing gasket 3 is fixed inside the panel 101. One end of the sealing gasket 3 away from the inner wall of the panel 101 extends into the cabinet inlet / outlet 1011 to form a sealing part 301. The four corners of the sealing gasket 3 are also rounded.

[0027] A limiting ring 4 is fixed to the inner wall of panel 101, which surrounds the cabinet entrance and exit 1011. A retaining ring 5 is provided on the inner side of the limiting ring 4. A sliding ring 501 is formed at one end of the retaining ring 5 near the limiting ring 4. The sliding ring 501 is slidably sleeved on the inner wall of the limiting ring 4. Two limiting blocks 6 are symmetrically fixed on the side of the limiting ring 4 away from the inner wall of panel 101. The limiting blocks 6 limit the sliding ring 501 within the space enclosed by panel 101 and limiting ring 4. The retaining ring 5 can slide back and forth within the limiting ring 4, that is, slide towards the sealing part 301 or away from the sealing part 301. When the cabinet door 2 is closed, the sealing part 301 is located between the cabinet door 2 and the retaining ring 5.

[0028] The end of the clamping ring 5 away from the sliding ring 501 forms a contact part 502 that bends and extends toward the cabinet door 2. The contact part 502 extends toward the center of the cabinet inlet / outlet 1011 to form an auxiliary contact ring 5021. The auxiliary contact ring 5021 is directly opposite the sealing part 301. After the cabinet door 2 is closed, by pushing the clamping ring 5, the auxiliary contact ring 5021 can push the sealing part 301 and press the sealing part 301 against the inner wall of the cabinet door 2, so that the cabinet door 2 and the cabinet body 1 can form a good seal.

[0029] Two push bars 7 are symmetrically arranged on the inner side of the cabinet door 2. The push bars 7 are arranged horizontally, and the opposite ends of the two push bars 7 form a bevel 701. The two push bars 7 are located in the middle of the length direction of the cabinet door 2. A support sleeve 8 is slidably fitted on the outer side of the push bars 7. The support sleeve 8 is fixed on the inner wall of the cabinet door 2 to realize the sliding connection between the push bars 7 and the cabinet door 2.

[0030] A rotating shaft 9 is rotatably connected to the cabinet door 2 via a bearing. The end face of the rotating shaft 9 is directly opposite the center of the cabinet inlet / outlet 1011. A handle 10 is fixed to the outer end of the rotating shaft 9 on the cabinet door 2, and a drive disc 11 is fixed to the inner end of the rotating shaft 9 on the cabinet door 2. Two arc-shaped drive grooves 12 are centrally symmetrically opened on the drive disc 11. A drive column 13 is fixed to the opposite end of each of the two push bars 7. The axial direction of the drive column 13, the axial direction of the drive disc 11, and the axial direction of the rotating shaft 9 are the same, and the axis of the drive disc 11 coincides with the axis of the rotating shaft 9. The end of the drive column 13 is inserted into the arc-shaped drive groove 12.

[0031] After the cabinet door 2 is closed, the push bar 7 is located inside the cabinet body 1. The inclined surface 701 of the push bar 7 is directly opposite the corner of the clamping ring 5. At this time, hold the handle 10 to make the rotating shaft 9 rotate, which drives the drive plate 11 to rotate. The arc-shaped drive groove 12 moves the drive column 13, causing the two drive columns 13 to expand and push the two push bars 7 to expand and slide. The inclined surface 701 of the push bar 7 abuts against the corner of the clamping ring 5, and finally the cabinet door 2 abuts against the outer wall of the panel 101, the sliding ring 501 abuts against the inner side of the panel 101, and the auxiliary abutting ring 5021 abuts against the sealing part 301, making the sealing part 301 tightly attached to the inner side of the cabinet door 2.

[0032] A door lock 14 is installed on the handle 10. A lock groove 15 is provided on the outer wall of the cabinet door 2. When the bolt 1401 of the door lock 14 is aligned with the lock groove 15, the door lock 14 is operated by inserting the key into the lock cylinder, causing the bolt 1401 to be inserted into the lock groove 15, thus locking the angle of the handle 10. The structure of the door lock 14, bolt 1401, and lock cylinder is a conventional structure of the lock body in the prior art, which is mature prior art, and therefore will not be disclosed here. When turning the handle 10... The cabinet door 2 abuts against the outer wall of the panel 101, the sliding ring 501 abuts against the inner side of the panel 101, and the auxiliary abutting ring 5021 presses the sealing part 301 tightly. After the sealing part 301 is pressed tightly against the inner side of the cabinet door 2, the lock tongue 1401 is directly opposite the lock groove 15. When the door lock 14 is operated to insert the lock tongue 1401 into the lock groove 15, the cabinet door 2 is locked in the closed state. The sealing part 301 of the sealing gasket 3 abuts well against the inner wall of the cabinet door 2, forming a good seal.

[0033] In traditional technology, to achieve a seal on the cabinet door 2, a sealing gasket 3 is installed on the outside of the panel 101 of the cabinet body 1. When the cabinet door 2 is closed, it abuts against the sealing gasket 3. To ensure a good sealing effect, the thickness of the sealing gasket 3 needs to be increased. This can cause the part of the cabinet door 2 away from the hinge to be difficult to fit against the panel 101 when the door 2 is turned to close, thus requiring more force. This can easily lead to damage to the hinge. In addition, the traditional technology installs a rotating plate-shaped locking pin on the side of the cabinet door 2 away from the hinge to lock the inside of the cabinet body 1 and lock the cabinet door 2 in a closed state. Since the sealing gasket 3 always has elasticity, this locking method will always put stress on the hinge and the plate-shaped locking pin during subsequent use, making them very easy to be damaged and deformed. If the thickness of the sealing gasket 3 is not increased, the sealing effect cannot be achieved. Therefore, the outdoor switch box of traditional technology is difficult to achieve compatibility in terms of equipment lifespan and sealing effect.

[0034] This application, through the built-in locking ring 5 and the push bar 7, allows the push bar 7 to expand after the cabinet door 2 is closed, pushing the locking ring 5 close to the cabinet door 2 and against the inner side of the panel 101. It can also apply force to the cabinet door 2 in a direction perpendicular to the surface of the panel 101, causing the cabinet door 2 to abut against the surface of the panel 101, thus locking the cabinet door 2. During the closing process, the hinge is not subjected to significant force, preventing deformation. Furthermore, the symmetrical locking of the cabinet door 2 with two push bars 7 increases the strength compared to the traditional single-sided plate-shaped locking pin, making it less prone to deformation after locking and greatly increasing its service life. In particular, while tightening the locking ring 5 and the cabinet door 2, the locking ring 5 can also press the sealing part 301 against the cabinet door 2, ensuring that the sealing gasket 3 is tightly attached to the inner wall of the cabinet door 2, guaranteeing a good seal for the cabinet door 2. The sealing effect is greatly improved, combining good sealing with the service life of the equipment.

[0035] 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 sealing structure for an outdoor switch box, comprising a cabinet body (1) and a cabinet door (2), characterized in that, A sealing gasket (3) is fixed inside the panel (101) of the cabinet (1). One end of the sealing gasket (3) away from the inner wall of the panel (101) extends into the cabinet inlet and outlet (1011) on the panel (101) to form a sealing part (301). The cabinet door (2) is equipped with a locking structure on the inside. The locking structure is used to lock the cabinet door (2) in the closed state. The locking structure includes a retaining ring (5) that is slidably installed on the inside of the panel (101), a push bar (7) that is symmetrically slidably installed on the inside of the cabinet door (2), and an opening and closing structure that drives the two push bars (7) to open and close. The operation of the opening and closing structure causes the two push bars (7) to expand. The inclined surface (701) at the end of the push bar (7) forces the retaining ring (5) to move and abut against the inner wall of the panel (101), and presses the sealing part (301) against the inside of the cabinet door (2). The cabinet door (2) abuts against the outer wall of the panel (101).

2. The sealing structure for an outdoor switch box according to claim 1, wherein The two push bars (7) are arranged horizontally, and the two push bars (7) are located in the middle of the length direction of the cabinet door (2).

3. The seal for an outdoor switch box of claim 2, wherein, The outer side of the push bar (7) is fitted with a support sleeve (8), which is fixed to the inner wall of the cabinet door (2).

4. The seal for an outdoor switch box of claim 1, wherein, The four corners of the cabinet inlet and outlet (1011) are all rounded, and the four corners of the sealing gasket (3) are also rounded.

5. The seal for an outdoor switch box of claim 1, wherein, A limiting ring (4) is fixed to the inner wall of the panel (101). The limiting ring (4) surrounds the cabinet entrance and exit (1011). The end of the clamping ring (5) near the limiting ring (4) forms a sliding ring (501). The sliding ring (501) is slidably sleeved on the inner wall of the limiting ring (4). Two limiting blocks (6) are symmetrically fixed on the side of the limiting ring (4) away from the inner wall of the panel (101). The limiting blocks (6) limit the sliding ring (501) within the space enclosed by the panel (101) and the limiting ring (4).

6. The seal for an outdoor switch box of claim 5, wherein, The end of the clamping ring (5) away from the sliding ring (501) has a contact part (502) that bends and extends toward the cabinet door (2). The contact part (502) is directly opposite the sealing part (301). When the cabinet door (2) is closed, the push bar (7) is located inside the cabinet body (1), and the inclined surface (701) of the push bar (7) is directly opposite the corner of the clamping ring (5).

7. The sealing structure of the outdoor switch box according to claim 6, characterized in that, The contact part (502) extends toward the center of the cabinet inlet / outlet (1011) to form an auxiliary contact ring (5021).

8. The seal for an outdoor switch box of claim 7, wherein, The opening and closing structure includes a rotating shaft (9) rotatably connected to the cabinet door (2) via a bearing. The end face of the rotating shaft (9) is directly opposite the center of the cabinet entrance and exit (1011). A handle (10) is fixed at one end of the rotating shaft (9) located outside the cabinet door (2). A door lock structure is installed on the handle (10). The door lock structure is used to lock the angle of the handle (10). The rotating shaft (9) is fixed with a drive plate (11) at one end inside the cabinet door (2). Two arc-shaped drive grooves (12) are centrally symmetrically opened on the drive plate (11). A drive column (13) is fixed at one end of each of the two push bars (7). The axial direction of the drive column (13), the axial direction of the drive plate (11), and the axial direction of the rotating shaft (9) are the same. The axis of the drive plate (11) coincides with the axis of the rotating shaft (9). The end of the drive column (13) is inserted into the arc-shaped drive groove (12).

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