Novel low-voltage switch cabinet drawer door hinge

Abstract

The utility model discloses a novel low-voltage switch cabinet drawer door hinge, which relates to the technical field of low-voltage switch cabinet body manufacturing, and comprises a cabinet body of a low-voltage switch cabinet, a door plate of a drawer door, a fixed plate, a Z-shaped plate and a rotating shaft, one side of the Z-shaped plate is fixedly connected with the fixed plate through a first screw, the end part of the other side of the Z-shaped plate is fixedly connected with a pair of coaxial shaft sleeves, the inner side wall of the door plate is fixedly provided with an L-shaped folding edge, the folding edge is vertical to the door plate, and the inner side of the folding edge is fixedly connected with a mounting block through a second screw; the buffering structure is additionally arranged at the joint of the door plate and the cabinet body, buffering force is applied when the door plate is opened to be close to the limit position, external force generated on the door plate and the cabinet body due to the fact that inertia reaches the limit position is reduced, impact is reduced, and the protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage switch cabinet manufacturing, in particular to a novel low-voltage switch cabinet drawer door hinge. Background Art

[0002] With the development of domestic power distribution technology, the existing low-voltage switchgear is mainly of the drawer type. This structure is widely used. Its advantages are simple structure, flexible combination, easy installation, and simple later maintenance and replacement.

[0003] The drawer door panels of the existing low-voltage switch cabinets are connected to the cabinet body through hinges for rotation. There are some problems with this existing installation: when a person opens the door panel, if he accidentally uses too much force or hits the opened door panel, the door panel will rotate rapidly, and the inertia will cause the door panel to still have a certain speed when it reaches the rotation limit position, so that the hinges connecting the door panel and the cabinet body are subjected to a certain "twisting" and "slipping" force, which may loosen the connection and even deform the door panel or cabinet body. In addition, when a person opens the door panel to inspect and install the drawer parts, if he accidentally touches the door panel, the door panel will rotate back and forth, affecting the work of the staff. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a novel low-voltage switch cabinet drawer door hinge, in which a buffer structure is added at the connection between the door panel and the cabinet body. When the door panel is opened close to the limit position, the force that hits the buffer is reduced, thereby reducing the external force on the door panel and the cabinet body caused by inertia reaching the limit position, reducing the impact and playing a protective role.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a new type of low-voltage switch cabinet drawer door hinge, including a cabinet of the low-voltage switch cabinet, a door panel of the drawer door, a fixed plate, a Z-shaped plate and a rotating shaft, the fixed plate is vertically and fixedly arranged on the inner side wall of the cabinet, one side of the Z-shaped plate is fixedly connected to the fixed plate by a first screw, and a pair of coaxial sleeves are fixedly connected to the end of the other side of the Z-shaped plate, the inner side wall of the door panel is fixedly provided with an L-shaped folded edge, the folded edge is perpendicular to the door panel, and the inner side of the folded edge is fixedly connected to the first screw. Two screws are fixedly connected with a mounting block, and the mounting block is fixedly connected to the center position of the rotating shaft. The upper and lower parts of the rotating shaft rotate and pass through the shaft sleeve respectively. A buffer structure is arranged at the center position of the Z-shaped plate, and the buffer structure includes a tension spring and a push rod. The push rod movably passes through the center position of the Z-shaped plate. A clamping plate is arranged at one end corresponding to the inner side of the push rod. The tension spring is sleeved on the push rod, one end is connected to the clamping plate, and the other end is connected to the Z-shaped plate. When the door panel and the folding edge rotate, the folding edge can abut against the front end of the push rod.

[0006] Preferably, a second magnet is provided on the folded edge end surface of the door panel, and a first magnet is provided on the surface of the Z-shaped plate close to the sleeve, and the first magnet and the second magnet are attracted to each other when the door panel rotates to the extreme position.

[0007] Preferably, a hemispherical body is provided at the front end of the push rod.

[0008] Preferably, the fixing plate and the cabinet body are integrally formed.

[0009] Preferably, the folded edge and the door panel are integrally formed.

[0010] Preferably, a profiling plate is provided on one side of the cabinet body corresponding to the door panel.

[0011] The utility model provides a novel low-voltage switch cabinet drawer door hinge, which has the following beneficial effects:

[0012] 1. The utility model adds a buffer structure at the connection between the door panel and the cabinet body. When the door panel is opened close to the limit position, the force of the buffer is reduced, thereby reducing the external force on the door panel and the cabinet body caused by inertia reaching the limit position, reducing the impact and playing a protective role;

[0013] 2. In the utility model, a spring locking component or a magnet adsorption component can be set between the door panel and the Z-shaped plate. The staff can manually apply force to open the door panel to the extreme position, so that the door panel and the Z-shaped plate are fixed. A small force will not cause the two to separate, ensuring that the door panel will not shake at will during work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a top view of a new type of low-voltage switch cabinet drawer door hinge of the utility model;

[0015] Figure 2 For this utility model Figure 1 Top view of the middle door panel when it is open;

[0016] Figure 3 For this utility model Figure 1 Front view section at the pivot axis.

[0017] In the figure: 1, cabinet; 2, hemisphere; 3, push rod; 4, Z-shaped plate; 5, fixing plate; 6, first screw; 7, clamping plate; 8, door panel; 9, tension spring; 10, first magnet; 11, bushing; 12, rotating shaft; 13, mounting block; 14, second screw; 15, folding edge; 16, second magnet; 17, imitation plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-3 As shown, a novel low-voltage switch cabinet drawer door hinge comprises a cabinet body 1 of the low-voltage switch cabinet, a door panel 8 of the drawer door, a fixing plate 5, a Z-shaped plate 4 and a rotating shaft 12, wherein the fixing plate 5 is vertically and fixedly arranged on the inner wall of the cabinet body 1, one side of the Z-shaped plate 4 is fixedly connected to the fixing plate 5 by a first screw 6, and a pair of coaxial sleeves 11 are fixedly connected to the end of the other side of the Z-shaped plate 4, an L-shaped folding edge 15 is fixedly arranged on the inner wall of the door panel 8, the folding edge 15 is perpendicular to the door panel 8, and a mounting block 13 is fixedly connected to the inner side of the folding edge 15 by a second screw 14, and the mounting block 13 is fixedly connected to the center position of the rotating shaft 12, and the upper and lower parts of the rotating shaft 12 are respectively rotated and penetrated through the sleeve 11, and a buffer structure is arranged at the center position of the Z-shaped plate 4, and the buffer structure includes a tensile Spring 9 and push rod 3, the push rod 3 is movable and passes through the center position of the Z-shaped plate 4, and a clamping plate 7 is provided at one end of the inner side of the push rod 3. The tension spring 9 is sleeved on the push rod 3, one end is connected to the clamping plate 7, and the other end is connected to the Z-shaped plate 4. When the door panel 8 and the folding edge 15 rotate, the folding edge 15 can abut against the front end of the push rod 3; the end face of the folding edge 15 of the door panel 8 is provided with a second magnet 16, and the surface of the Z-shaped plate 4 close to the sleeve 11 is provided with a first magnet 10. When the door panel 8 rotates to the extreme position, the first magnet 10 and the second magnet 16 are attracted to each other; a hemisphere 2 is provided at the front end of the push rod 3; the fixed plate 5 and the cabinet body 1 are integrally formed; the folding edge 15 and the door panel 8 are integrally formed; a profiling plate 17 is provided on the side of the cabinet body 1 corresponding to the door panel 8.

[0020] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0021] According to the instruction manual Figure 1-3 It can be seen that the working state defined by the utility model is that when the door panel 8 rotates by inertia (without other external forces), a buffering effect can be achieved. During operation, since the rotating shaft 12 and the sleeve 11 can rotate relative to each other, when the door panel 8 is opened, Figure 1 The state changes to Figure 2In this state, the door panel 8 rotates clockwise, and the folded edge 15, the mounting block 13, and the rotating shaft 12 rotate around the axis of the rotating shaft 12. When the rotation is close to the limit, that is, close to 90 degrees, the folded edge 15 abuts against the front end of the push rod 3, and the door panel 8 and the folded edge 15 continue to rotate due to inertia, the push rod 3 is pushed, and the tension spring 9 is stretched. The reaction force can push the folded edge 15 and the door panel 8 to slow down, thereby playing a buffering role.

[0022] Among them, a second magnet 16 is arranged on the end face of the folded edge 15 of the door panel 8, and a first magnet 10 is arranged on the surface of the Z-shaped plate 4 close to the shaft sleeve 11. When the door panel 8 rotates to the extreme position, the first magnet 10 and the second magnet 16 are mutually attracted, so that the door panel 8 and the Z-shaped plate 4 are fixed, and a small force will not separate the two, so as to ensure that the door panel 8 will not shake at will during the work of the personnel. Of course, other locking structures can also be used, such as a spring locking assembly, to ensure that the door panel 8 is temporarily stable.

[0023] Among them, a hemispherical body 2 is arranged at the front end of the push rod 3. When the folded edge 15 contacts the hemispherical body 2, it is ensured that the push rod 3 and the surface of the folded edge 15 will not be stuck, thereby ensuring the normal performance of the buffering work.

[0024] The fixing plate 5 and the cabinet body 1 are integrally formed, and the folding edge 15 and the door panel 8 are integrally formed, so as to increase the connection strength and prolong the service life.

[0025] In addition, a contour plate 17 is provided on one side of the cabinet body 1 corresponding to the door panel 8 , which can reduce the gap between the cabinet body 1 and the folded edge 15 , making the overall outer tube more beautiful. The contour plate 17 will not affect the rotation of the folded edge 15 .

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of low voltage switch cabinet drawer door hinge, characterized in that: The invention comprises a cabinet body (1) of a low-voltage switch cabinet, a door panel (8) of a drawer door, a fixing plate (5), a Z-shaped plate (4) and a rotating shaft (12), wherein the fixing plate (5) is vertically and fixedly arranged on the inner wall of the cabinet body (1), one side of the Z-shaped plate (4) is fixedly connected to the fixing plate (5) by a first screw (6), and the other end of the Z-shaped plate (4) is fixedly connected to a pair of coaxial sleeves (11), and the inner wall of the door panel (8) is fixedly provided with an L-shaped folded edge (15), wherein the folded edge (15) is perpendicular to the door panel (8), and the inner side of the folded edge (15) is fixedly connected to a mounting block (13) by a second screw (14), and the mounting block (13) is fixedly connected to the inner wall of the door panel (8). ) is fixedly connected to the center position of the rotating shaft (12), the upper and lower parts of the rotating shaft (12) are respectively rotated and penetrated through the shaft sleeve (11), a buffer structure is arranged at the center position of the Z-shaped plate (4), the buffer structure comprises a tension spring (9) and a push rod (3), the push rod (3) is movable and penetrates the center position of the Z-shaped plate (4), a clamping plate (7) is arranged at one end corresponding to the inner side of the push rod (3), the tension spring (9) is sleeved on the push rod (3), one end is connected to the clamping plate (7), and the other end is connected to the Z-shaped plate (4), when the door panel (8) and the folding edge (15) rotate, the folding edge (15) can abut against the front end of the push rod (3).

2. A new type of low voltage switch cabinet drawer door hinge according to claim 1, characterized in that: A second magnet (16) is provided on the end surface of the folded edge (15) of the door panel (8), and a first magnet (10) is provided on the surface of the Z-shaped plate (4) close to the shaft sleeve (11). When the door panel (8) rotates to an extreme position, the first magnet (10) and the second magnet (16) are attracted to each other.

3. A new type of low voltage switch cabinet drawer door hinge according to claim 1, characterized in that: A hemispherical body (2) is arranged at the front end of the push rod (3).

4. A new type of low voltage switch cabinet drawer door hinge according to claim 1, characterized in that: The fixing plate (5) and the cabinet body (1) are integrally formed.

5. The novel low-voltage switch cabinet drawer door hinge according to claim 1 is characterized in that: The folded edge (15) and the door panel (8) are integrally formed.

6. The novel low-voltage switch cabinet drawer door hinge according to claim 1 is characterized in that: A profiling plate (17) is provided on one side of the cabinet body (1) corresponding to the door panel (8).

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