Door hinge quick adjustment structure

Abstract

The utility model relates to a door hinge quick adjusting structure, including cabinet body and the main door and the side door of hinged cabinet body through the hinge, and the hinge is constituted by the fixed part and the floating part of swing joint, and the fixed part is fixedly connected with the cabinet body, and the floating part is fixedly connected with the main door or the side door, the cabinet body is provided with the long round adjusting hole of horizontal direction extension, and the cabinet body is installed with the adjusting bolt of fixed part screw connection, and the thread end of adjusting bolt extends back to the side door, and the thread end of adjusting bolt abuts at the cabinet body. Adjusting bolt sets up in the cabinet body, and is connected with the stressed part screw. Through the thread advance effect of adjusting bolt, can drive the fixed part to move along the horizontal direction to drive the main door to carry out the position fine adjustment. The structure is simple to operate, and responds quickly, can effectively correct the main door deviation caused by long -term heavy load or installation error, ensures the alignment accuracy between the main door and the side door.

Description

Technical Field

[0001] This utility model relates to the field of machine tool electrical cabinet technology, specifically a quick-adjustment structure for door hinges. Background Technology

[0002] As core equipment in modern manufacturing, CNC machine tools typically have their electrical control systems centrally installed in dedicated electrical cabinets. These cabinets integrate various electrical components and control instruments, generating significant heat during operation. If this heat cannot be dissipated promptly, the internal temperature of the cabinet may become excessively high, affecting the performance stability and lifespan of the electrical components, and even causing equipment malfunctions. To ensure the internal temperature of the cabinet remains within a reasonable range, current technology typically installs an air conditioning unit on the main door of the cabinet for active cooling.

[0003] Common electrical cabinet door structures typically consist of a main door and a secondary door connected by hinges. The main door has a lock body, and the secondary door has a corresponding lock groove. When both doors are closed simultaneously, the bolt in the lock body engages with the lock groove, thus closing and locking the cabinet doors. Furthermore, to meet protection level requirements, the back of both the main and secondary doors are usually fitted with sealing strips. When closed, these strips must fit tightly against the sealing plate on the cabinet to ensure the cabinet's airtightness and prevent dust and moisture from entering.

[0004] However, due to the significant weight of the air conditioning unit, its installation behind the main door would substantially increase its load, potentially leading to structural deformation or positional shift of the main door over long-term use. This shift would further cause misalignment between the main and secondary doors, making it difficult for the latch to accurately engage with the lock groove, resulting in locking difficulties or even the inability to lock. Simultaneously, the shift in the main door would also prevent the sealing strip and sealing plate from effectively adhering, resulting in misalignment or gaps, thereby reducing the sealing effect of the electrical cabinet and affecting the protection of internal components.

[0005] Therefore, how to design the structure of the main gate so that its position can be quickly adjusted to achieve the purpose of correction has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] To address the technical problems in the background art, this utility model discloses a quick-adjustment structure for door hinges.

[0007] This utility model provides a quick-adjustment structure for a door hinge, including a cabinet and a main door and a secondary door that are hinged to the cabinet. The hinge consists of a fixed part and a floating part that are movably connected. The fixed part is fixedly connected to the cabinet, and the floating part is fixedly connected to the main door or the secondary door. The cabinet is provided with an elongated oval adjustment hole extending horizontally. The fixing part is connected and fixed to the cabinet through the adjustment hole; The cabinet is equipped with adjusting bolts that are threadedly connected to the fixing parts; The threaded end of the adjusting bolt extends away from the secondary door; The threaded end of the adjusting bolt abuts against the cabinet body; Hinges are installed at the top and bottom, and in the middle, where the cabinet connects to the main door.

[0008] Furthermore, the fixing part is connected to a force-bearing part that extends into the inside of the cabinet; The adjusting bolts are located inside the cabinet and are threadedly connected to the load-bearing parts.

[0009] Furthermore, the load-bearing component includes an adjustment plate located inside the cabinet. The fixing bolts pass through the adjusting plate and adjusting hole in sequence and are threaded into the fixing part. The adjusting plate is provided with an internal thread that connects with the adjusting bolt.

[0010] Furthermore, an adjusting nut is vertically welded onto the adjusting plate; The adjusting nut and adjusting bolt are connected by threads.

[0011] Furthermore, a first connecting plate extends from the end of the cabinet that connects to the main door toward the secondary door; A second connecting plate extends vertically outward from the end of the first connecting plate. The fixing part is installed on the outer side of the first connecting plate; The adjustment hole is located on the first connecting plate; The main door is positioned to abut against the second connecting plate.

[0012] Furthermore, a sealing strip is installed on the back side of the main door; The sealing strip is connected to the end face of the second connecting plate.

[0013] Furthermore, the opening and closing end of the secondary door extends vertically into the electrical cabinet with a first secondary connecting plate, and the end of the first secondary connecting plate extends vertically towards the main door with a second secondary connecting plate. The opening and closing end of the main door leads the first main connecting plate vertically into the electrical cabinet, and the end of the first main connecting plate leads the second main connecting plate vertically away from the direction of the secondary door. The second main connecting plate is attached to the second auxiliary connecting plate.

[0014] The beneficial effects of this utility model are: 1. By setting a horizontally extending elongated oval adjustment hole on the cabinet, and connecting the hinge fixing part to the cabinet through this hole, the threaded push action of the adjusting bolt can easily drive the fixing part to move horizontally, thereby causing the main door to make fine adjustments to its position. This structure is simple to operate and responds quickly, effectively correcting the main door misalignment caused by long-term load or installation errors, ensuring the alignment accuracy between the main door and the secondary door. At the same time, the correction of the main door position also allows the sealing strip and sealing plate to re-fit tightly, preventing gaps caused by misalignment, and significantly improving the dustproof and moisture-proof sealing effect of the electrical cabinet.

[0015] 2. When the distance between the main door and the secondary door is too far, adjusting the hinges simultaneously can reduce the distance between the main door and the secondary door; when the main door is tilted, adjusting the upper or lower hinges can correct the tilt of the main door; this adjustment structure does not require complex components or special tools, and the position of the main door can be quickly adjusted by simply adjusting the bolts, reducing maintenance costs and operational difficulty.

[0016] 3. Adding a hinge at the middle position of the connection between the cabinet and the main door can improve the connection strength of the main door, increase its load-bearing capacity, effectively suppress structural deformation and positional drift of the main door, and extend the service life of the electrical cabinet door. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 yes Figure 2 Sectional view of AA; Figure 4 yes Figure 3 Enlarged view of point C in the middle; Figure 5 yes Figure 3 Enlarged view at point D; Figure 6 yes Figure 3 Enlarged view at point E in the middle; Figure 7 yes Figure 3 Sectional view of BB; Figure 8 yes Figure 7 Enlarged view at point F; Figure 9 This is the front view of the present invention, in which the main door and the secondary door are hidden; In the diagram: 1. Cabinet body; 2. Hinge; 3. Main door; 4. Secondary door; 5. Adjusting bolt; 6. Adjusting nut; 7. Adjusting plate; 8. Fixing bolt; 9. Main sealing strip; 10. Secondary sealing strip; 21. Fixed part; 22. Floating part; 31. First main connecting plate; 32. Second main connecting plate; 41. First secondary connecting plate; 42. Second secondary connecting plate; 101. Adjusting hole; 102. First connecting plate; 103. Second connecting plate; 104. Third connecting plate; 105. Fourth connecting plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figure 1-3 As shown, this utility model discloses a quick-adjustment structure for a door hinge, including a cabinet 1 with an opening on the front. A secondary door 4, which can be opened and closed via a hinge 2, is located on the right side of the cabinet 1, and a main door 3, which can also be opened and closed via a hinge 2, is located on the left side of the cabinet 1. The hinge 2 consists of a fixed part 21 and a floating part 22 that are movably connected. The fixed part 21 is fixedly connected to the cabinet 1, and the floating part 22 is fixedly connected to either the main door 3 or the secondary door 4. When the main door 3 and the secondary door 4 are closed, the latch can accurately engage in the lock groove.

[0021] like Figure 9 As shown, the inner sides of the main door 3 and the secondary door 4 are respectively provided with a main sealing strip 9 and a secondary sealing strip 10. The main sealing strip 9 is U-shaped and opens towards the secondary door 4; the secondary sealing strip 10 is U-shaped and opens towards the main door 3. When the main door 3 and the secondary door are closed, the main sealing strip 9 and the secondary sealing strip 10 form a frame, achieving a seal between the main door 3 and the cabinet 1, and a seal between the secondary door 4 and the cabinet 1.

[0022] The secondary door 4, due to its lower load, is connected to the cabinet 1 via two hinges 2. The main door 3, requiring the installation of an air conditioner and thus having a higher load, is connected to the cabinet 1 not only via two hinges 2, but also... Figure 9 As shown, a hinge 2 is also provided in the middle to connect with the cabinet body 1. This can improve the connection strength of the main door 3, increase its load-bearing capacity, effectively suppress structural deformation and positional drift of the main door 3, and extend the service life of the electrical cabinet door.

[0023] like Figure 4 As shown, a first connecting plate 102 extends vertically from the end of the cabinet 1 connected to the main door 3 towards the secondary door 4; a second connecting plate 103 extends vertically from the end of the first connecting plate 102 towards the outside of the cabinet 1; a fixing part 21 is installed on the outer side of the first connecting plate 102. Figure 7 and Figure 8As shown, the first connecting plate 102 has an elongated oval adjustment hole 101 extending horizontally. An adjustment plate 7 is fitted to the inner side of the first connecting plate 102. The fixing bolt 8 passes through the adjustment plate 7 and the adjustment hole 101 in sequence and is threadedly connected to the fixing part 21, thereby realizing the connection and fixation of the fixing plate and the cabinet 1.

[0024] An adjusting nut 6 is vertically welded to the inner side of the adjusting plate 7. An adjusting bolt 5 is threadedly connected to the adjusting nut 6, with the threaded end of the adjusting bolt 5 extending to the left and abutting against the cabinet 1. When the adjusting bolt 5 is turned, causing it to move to the left, the cabinet 1's obstruction causes the adjusting nut 6 to move to the right, thereby sequentially moving the adjusting plate 7 and the main door 3 to the right, thus adjusting the position of the main door 3. Compared to directly machining internal threads on the adjusting plate 7 (by welding protrusions onto the adjusting plate 7 and machining internal threads on those protrusions), the adjusting nut 6 not only has a simpler structure but is also easier to operate and lower in cost.

[0025] When the distance between the main door 3 and the secondary door 4 is too far, the distance between the main door 3 and the secondary door 4 can be reduced by adjusting the hinge 2 at the same time. When the main door 3 is tilted, the tilt of the main door 3 can be corrected by adjusting the upper or lower hinge 2. This adjustment structure does not require complex components or special tools. The position of the main door 3 can be quickly adjusted by adjusting the bolt 5, which reduces maintenance costs and operation difficulty.

[0026] Meanwhile, the second connecting plate 103 is also used for limiting the installation of the fixing part 21. The main door 3 is set to be installed in a position where the fixing part 21 abuts against the second connecting plate 103. With this setting, when the main door 3 shifts position, it is only necessary to adjust it until the fixing part 21 abuts against the second connecting plate 103, thereby eliminating the step of measuring the position of the main door 3 and improving the efficiency of adjusting the position of the main door 3.

[0027] When the main door 3 is closed, the main sealing strip 9 is connected to the outer end of the second connecting plate 103. Because of its small contact area, the position where the main sealing strip 9 is connected to the second connecting plate 103 is more likely to be concave and deformed, which can improve the sealing effect.

[0028] like Figure 6 As shown, a third connecting plate 104 extends vertically towards the main door 3 from the end of the cabinet 1 connected to the secondary door 4; a fourth connecting plate 105 extends vertically outward from the end of the third connecting plate 104; and a fixing part 21 is installed on the outer side of the third connecting plate 104. Similarly, the third connecting plate 104 also serves to limit the installation of the fixing part 21, and the secondary sealing strip 10 is also connected to the outer end of the fourth connecting plate 105, providing the same sealing function.

[0029] like Figure 5As shown, the opening and closing end of the secondary door 4 extends vertically into the electrical cabinet with a first auxiliary connecting plate 41, and the end of the first auxiliary connecting plate 41 extends vertically towards the main door 3 with a second auxiliary connecting plate 42; the opening and closing end of the main door 3 extends vertically into the electrical cabinet with a first main connecting plate 31, and the end of the first main connecting plate 31 extends vertically away from the secondary door 4 with a second main connecting plate 32; the second main connecting plate 32 and the second auxiliary connecting plate 42 are fitted together. The fitting of the second main connecting plate 32 and the second auxiliary connecting plate 42 achieves a seal at the connection between the main door 3 and the secondary door 4.

[0030] Compared to existing technologies, the advantages of this embodiment are: by providing a horizontally extending elongated oval adjustment hole 101 on the cabinet 1, and connecting the hinge 2 fixing part 21 to the cabinet 1 through this hole, and with the threaded pushing action of the adjusting bolt 5, the fixing part 21 can be easily driven to move horizontally, thereby causing the main door 3 to make fine adjustments to its position. This structure is simple to operate and responds quickly, effectively correcting the offset of the main door 3 caused by long-term load or installation errors, ensuring the alignment accuracy between the main door 3 and the secondary door 4. At the same time, the correction of the position of the main door 3 also allows the sealing strip and the sealing plate to re-fit tightly, preventing gaps caused by misalignment, and significantly improving the dustproof and moisture-proof sealing effect of the electrical cabinet.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A quick-adjustment door hinge structure, comprising a cabinet (1) and a main door (3) and a secondary door (4) hinged to the cabinet (1) via a hinge (2), wherein the hinge (2) is composed of a fixed part (21) and a floating part (22) that are movably connected, the fixed part (21) being fixedly connected to the cabinet (1), and the floating part (22) being fixedly connected to the main door (3) or the secondary door (4); characterized in that: The cabinet (1) is provided with an elongated oval adjustment hole (101) extending horizontally. The fixing part (21) is connected and fixed to the cabinet (1) through the adjustment hole (101); The cabinet (1) is equipped with an adjusting bolt (5) that is threadedly connected to the fixing part (21); The threaded end of the adjusting bolt (5) extends away from the auxiliary door (4); The threaded end of the adjusting bolt (5) abuts against the cabinet body (1). Hinges (2) are provided at the top and bottom ends and the middle position of the connection between the cabinet (1) and the main door (3).

2. The quick-adjustment structure for a door hinge according to claim 1, characterized in that: The fixing part (21) is connected to a force-bearing part that extends into the cabinet (1); The adjusting bolt (5) is located inside the cabinet (1) and is threadedly connected to the force-bearing part.

3. The quick-adjustment structure for a door hinge according to claim 2, characterized in that: The force-bearing part includes an adjustment plate (7) disposed inside the cabinet (1); The fixing bolt (8) passes through the adjusting plate (7) and the adjusting hole (101) in sequence and is threadedly connected to the fixing part (21); The adjusting plate (7) is provided with an internal thread that is threadedly connected to the adjusting bolt (5).

4. The quick-adjustment structure for a door hinge according to claim 3, characterized in that: An adjusting nut (6) is vertically welded onto the adjusting plate (7); The adjusting nut (6) is threadedly connected to the adjusting bolt (5).

5. The quick-adjustment structure for a door hinge according to claim 1, characterized in that: The cabinet (1) has a first connecting plate (102) extending from the end connected to the main door (3) toward the secondary door (4). A second connecting plate (103) extends vertically outward from the end of the first connecting plate (1) towards the outside of the cabinet (1). The fixing part (21) is installed on the outer side of the first connecting plate (102); The adjustment hole (101) is provided on the first connecting plate (102); The main door (3) is installed in a position where the fixing part (21) abuts against the second connecting plate (103).

6. The quick-adjustment structure for a door hinge according to claim 5, characterized in that: The main door (3) is provided with a main sealing strip (9) on the back side. The main sealing strip (9) is connected to the end face of the second connecting plate (103).

7. The quick-adjustment structure for a door hinge according to claim 1, characterized in that: The opening and closing end of the secondary door (4) extends vertically into the electrical cabinet with a first secondary connecting plate (41), and the end of the first secondary connecting plate (41) extends vertically into the main door (3) with a second secondary connecting plate (42). The opening and closing end of the main door (3) extends vertically into the electrical cabinet with a first main connecting plate (31), and the end of the first main connecting plate (31) extends vertically into the direction away from the secondary door (4) with a second main connecting plate (32). The second main connecting plate (32) is attached to the second auxiliary connecting plate (42).

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