CN203905680U - Switch cabinet hinge and switch cabinet using same - Google Patents

Abstract

The utility model discloses a hinge for a switch cabinet and a switch cabinet using the hinge. The switch cabinet includes a cabinet body and a cabinet door hinged on the cabinet body through a hinge. The hinge includes a fixed part and a rotating part. The fixed part is hinged, and the fixed part is provided with a supporting arm extending toward the rotating pair. The rotating part includes a mounting plate corresponding to the side of the cabinet door, and the mounting plate is fixedly connected with the side of the cabinet door through fastening screws. Mounting holes for fastening screws are provided on the plate, and the mounting plate has a function for being close to the support arm or overlapping with the support arm along the extension direction of the rotation center line on the stroke of the rotation around the rotation center line of the rotating pair. The closing position corresponding to the closed state of the cabinet door and the open position corresponding to the open state of the cabinet door are far away from the support arm. The rotating part is installed on the side of the cabinet door, and the connection between the rotating part and the cabinet door is hidden on the side of the cabinet door, which will not affect the beautiful appearance of the front of the cabinet door.

Description

Hinge for switchgear and switchgear using the hinge

technical field

The utility model relates to a hinge for a switch cabinet and a switch cabinet using the hinge.

Background technique

The existing switchgear comprises a cabinet body and a cabinet door, and the cabinet door is hinged on the cabinet body through hinges. The hinge generally includes a fixed part fixedly installed on the cabinet body and a rotating part fixedly assembled with the cabinet door, and the rotating part is hinged by a rotating pair arranged between the fixed part and the rotating part. Push the cabinet door to rotate around the rotation center line of the rotary pair to control the opening of the cabinet door.

A switch cabinet door hinge is disclosed in the Chinese utility model with the authorized announcement number CN201924719U. The fixed part and the rotating part of the hinge are respectively fixed and assembled with the cabinet body and the cabinet door by bolts. The fixed part is installed outside the cabinet. Bolts are fixedly assembled with the cabinet body. The fixed base has a stop surface for matching with the cabinet body. The base is also provided with a support arm extending away from the stop surface. The end of the support arm away from the base is set There are fixed bushings for coaxial mating with the pin shaft. The general cabinet door has a front facing the outside of the cabinet, a back facing inside the cabinet, a top surface and a bottom surface at the top and bottom of the cabinet door, and two sides on the left and right sides of the cabinet door. The two sides of the side, where the rotating part is an L-shaped bent plate structure that matches the corner structure formed by the front of the cabinet door and one side of the side, the L-shaped bent plate structure has a long side corresponding to the front of the cabinet door and The short side corresponding to the side of the cabinet door, and the L-shaped bent plate structure is provided with a rotating sleeve structure for coaxial mating with the pin shaft at the transition position between the long side and the short side, and the long side of the L-shaped bent plate passes through The bolt is fixedly assembled on the front of the cabinet door, and the bearing pin here, the fixed bushing and the rotating bushing constitute the rotating pair between the fixed part and the rotating part of the hinge. During installation, the rotating part is correspondingly installed on the cabinet door, the fixed part is correspondingly installed on the cabinet body, the pin shaft is inserted into the fixed bushing and the rotating bushing, and finally the hinged connection between the cabinet door and the cabinet body is realized.

However, the rotating part of the above-mentioned hinge has an L-shaped bent plate structure, and the overall structure is relatively complicated. In order to ensure the strength, it needs to be processed by die-casting, and the manufacturing cost is high. On the other hand, because the connection structure between the L-shaped bent plate structure and the cabinet door And the threaded connector will stay on the front or back of the cabinet door, which will easily affect the appearance of the cabinet door.

Utility model content

The purpose of this utility model is to provide a hinge for a switchgear that can hide the connection between the hinge and the cabinet door on the side of the cabinet door; at the same time, the utility model also provides a switchgear using the above hinge.

In order to achieve the above purpose, the technical solution of the switch cabinet hinge provided by the utility model is: a switch cabinet hinge, including a fixed part for being fixedly connected to the switch cabinet body and a hinged part for hinged connection with the fixed part through a rotating pair. Fixedly connected to the rotating part of the switch cabinet door, the fixed part is provided with a support arm extending towards the rotating pair, the rotating part is composed of a mounting plate corresponding to the side of the switch cabinet door, and the The rotating pair is arranged between the support arm and the mounting plate, and the mounting plate is provided with fastening screw mounting holes for wearing and fixing the fastening screws connecting the rotating part and the corresponding side of the cabinet door. On the rotation stroke of the rotation centerline of the rotary pair, there is a closing position corresponding to the closed state of the cabinet door which is close to the support arm or overlaps with the support arm along the extension direction of the rotation centerline, and has a position far away from the support arm. The opening position of the support arm is used to correspond to the open state of the cabinet door.

The rotating pair includes a fixed shaft sleeve fixedly connected with the support arm, a rotating shaft sleeve fixedly connected with the mounting plate, and a pin shaft mated with the fixed shaft sleeve and the rotating shaft sleeve, and the fixed shaft sleeve and the rotating shaft sleeve support Cooperate, the centerline of rotation of the rotating pair coincides with the axis of the pin shaft.

There are two support arms on the fixed part corresponding to the two sides of the mounting plate in the axial extension direction of the pin shaft, and there is a gap between the two support arms corresponding to the closing position of the mounting plate When the cabinet door is closed, the mounting plate of the rotating part is accommodated so that the mounting plate overlaps with the support arm in the middle gap along the extension direction of the rotating centerline.

The fixed part has a fixed base for being arranged outside the cabinet and fixedly connected with the cabinet. The fixed base has a stop surface for blocking and matching with the cabinet. Arranged on the base and facing away from the stop surface.

There are more than two hinges arranged along the up and down direction, and the fixed bases of the fixed parts of the hinges are integrally connected together to form a fixed plate extending along the up and down direction, and the fixed plates are evenly distributed along the up and down direction for wearing and fixing. Fixing screw mounting holes for the fixing screws of the fixing plate and the cabinet body.

The technical scheme of the switchgear using the above hinge provided by the utility model is: a switchgear, including a cabinet body and a cabinet door hinged on the cabinet body through a hinge, the hinge includes a fixed part and a fixed part fixedly connected to the cabinet body. The rotating part connected to the cabinet door, the rotating part is hinged with the fixed part through the rotating pair, and the fixed part is provided with a support arm extending toward the rotating pair, and the rotating part includes a mounting corresponding to the side of the cabinet door The mounting plate is fixedly connected to the side of the cabinet door through fastening screws. There are fastening screw mounting holes on the mounting plate. Or the closed position overlapping with the support arm in the extension direction along the rotation center line is used to correspond to the closed state of the cabinet door, and the open position is far away from the support arm and used to correspond to the open state of the cabinet door.

The rotating pair includes a fixed shaft sleeve fixedly connected with the support arm, a rotating shaft sleeve fixedly connected with the mounting plate, and a pin shaft mated with the fixed shaft sleeve and the rotating shaft sleeve, and the fixed shaft sleeve and the rotating shaft sleeve support Cooperate, the centerline of rotation of the rotating pair coincides with the axis of the pin shaft.

There are two support arms on the fixed part corresponding to the two sides of the mounting plate in the axial extension direction of the pin shaft, and there is a gap between the two support arms corresponding to the closing position of the mounting plate When the cabinet door is closed, the mounting plate of the rotating part is accommodated so that the mounting plate overlaps with the support arm in the middle gap along the extension direction of the rotating centerline.

The fixed part has a fixed base arranged outside the cabinet and fixedly connected with the cabinet body. The fixed base has a blocking surface that cooperates with the cabinet body. The support arm of the fixed part is fixed on the fixed base and deviates from the fixed base. Arrangement of the stop surface.

Both the cabinet body and the cabinet door extend in the up and down direction, and there are more than two hinges arranged in the up and down direction, and the fixing bases of the fixing parts of the hinges are integrally connected together to form a fixing plate extending in the up and down direction, The fixing plate is evenly distributed with fixing screw mounting holes for wearing and fixing the fixing screws connecting the fixing plate and the cabinet along the up and down direction.

The benefit of the utility model is: the switch cabinet hinge provided by the utility model is correspondingly installed on the switch cabinet, the mounting plate of the rotating part corresponds to the side of the cabinet door, and is installed in the fastening screw mounting hole of the mounting plate The fastening screws realize the fixed connection between the mounting plate and the cabinet door. In this way, the rotating part is installed on the side of the cabinet door, and the connection between the rotating part and the cabinet door is hidden on the side of the cabinet door, and will not interfere with the front of the cabinet door. affect the aesthetic appearance. Moreover, the structure of the rotating part is relatively simple, and the manufacturing cost is low.

Further, more than two hinges are arranged in the up and down direction, and the fixing bases of the fixing parts of the hinges are integrally connected together to form a fixing plate extending in the up and down direction, and the fixing plate is fixedly connected to the cabinet body through fixing screws, In this way, the installation strength of each hinge can be improved, and the service life of the hinge can be prolonged.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of a switch cabinet provided by the utility model;

Figure 2 is an enlarged view at C in Figure 1;

Fig. 3 is a schematic structural view of the fixing part of the hinge in Fig. 1;

Fig. 4 is a side view of the fixing part shown in Fig. 3;

Fig. 5 is a structural schematic diagram of the rotating part of the hinge in Fig. 1;

Fig. 6 is a side view of the rotating part shown in Fig. 7;

Fig. 7 is a structural schematic diagram of a cabinet door equipped with a rotating part shown in Fig. 5;

Fig. 8 is a sectional view of A-A in Fig. 7;

Fig. 9 is a partial cross-sectional view at B-B in Fig. 2 (the cabinet door is closed and the pin shaft is not shown);

Fig. 10 is a partial structural schematic diagram of opening the cabinet door (the pin shaft is not shown).

Detailed ways

As shown in Figures 1 to 9, an embodiment of a switch cabinet, the switch cabinet in this embodiment includes a cabinet body 300 and a cabinet door 200, the cabinet door 200 is hinged on the cabinet body 300 through a hinge 100, and the cabinet door 200 has It is used to install the front 53 of the door handle and the side 51 of the hinge 100. The cabinet body 300 and the cabinet door 200 here extend along the up and down direction, and there are three hinges 100 arranged along the up and down direction. The fixed part 2 outside the body 300 and fixed on the solid 300 and the rotating part 3 fixed on the cabinet door 200, the rotating part 3 is hinged with the fixed part 2 through a rotating pair, and the rotating pair here includes a pin shaft 1 and a The pin shaft corresponds to the matching bushing, the axis of the pin shaft coincides with the centerline of rotation of the revolving pair, and a snap ring 4 is also provided at the end of the pin shaft 1 to prevent the pin shaft 1 from coming out of the corresponding bushing.

The fixed part 2 of each hinge 100 has a fixed base fixedly connected with the cabinet body 300. The fixed base has a stop surface 26 that is matched with the cabinet body 300. The support arm 22 extending toward the center line of rotation of the rotating pair, that is, the axis of the pin shaft, is provided with a fixed sleeve 24 corresponding to the pin shaft 1 at the end of the support arm 22 away from the fixed base. The fixed bases of the fixed parts 2 of the hinges 100 are integrally connected together to form a fixed plate 21 extending in the up and down direction. On the fixed plate 21, there are a plurality of fixed plates 21 and cabinets that are uniformly distributed in the up and down direction. The fixing screw installation hole 25 of the fixing screw of the body 300.

The rotating portion 3 of each hinge 100 includes a mounting plate 31 corresponding to the side 51 of the cabinet door 200 and fixedly connected with the cabinet door 200 by fastening screws. The mounting plate 31 is provided with fastening screws corresponding to the fastening screws. Mounting hole 32, during installation, fastening screw adopts countersunk screw, realizes the fixed connection of rotating part 3 and cabinet door 200 by countersunk screw and the nut plate 7 that is arranged on the inside of cabinet door. The mounting plate 31 is fixed with a rotating sleeve 33 corresponding to the pin shaft 1 , and the rotating sleeve 33 supports and cooperates with the fixed sleeve 24 . The mounting plate 31 has a closed position corresponding to the closed state of the cabinet door overlapping with the support arm in the direction extending along the axis of the pin shaft 1 and has a position away from the support arm during the rotation around the axis of the pin shaft 1 The opening position of the arm is used to correspond to the open state of the cabinet door. And, in this embodiment, the upper and lower sides of the corresponding rotating part in each hinge are all provided with two support arms 22 clamping the rotating part in the up and down direction, forming between the two supporting arms 22 for the cabinet door 200 The middle gap 23 of the mounting plate 31 of the rotating part 3 is accommodated when closed, and the middle gap corresponds to the closed position. When the cabinet door is closed, the middle gap accommodates the mounting plate so that the mounting plate can The extension direction of the axis overlaps with the support arm.

The cabinet body of the switchgear is mostly assembled with C-shaped materials. When installing hinges and cabinet doors, use fixing screws to fix the fixed plate 21 and the column of the C-shaped material. The cabinet door 200 equipped with the rotating part 3 is correspondingly installed on the cabinet body 300, so that the rotating shaft sleeve 33 on the rotating part 3 is correspondingly inserted between the two fixed shaft sleeves 24 at the ends of the two support arms 22, and the fixed shaft The sleeve is coaxial with the rotating shaft sleeve, then the pin shaft 1 is inserted into the fixed shaft sleeve and the rotating shaft sleeve, and finally the jump ring 1 is assembled. And because the supporting arm 22 of each hinge 100 all extends away from the stop surface, like this, each hinge 100 is just arranged on the outside of the cabinet body and the cabinet door, not only the appearance design is novel, but also convenient for installation and maintenance.

As shown in FIG. 9 , the cabinet door 200 is closed, and the mounting plate 31 of the rotating part 3 is located in the middle gap 23 of the two supporting arms 22 corresponding to the hinge.

As shown in FIG. 10 , the cabinet door 200 is opened, and the mounting plate 31 of the rotating part 3 rotates around the pin shaft and rotates out from the gap in the middle of the two supporting arms 22 corresponding to the hinge.

In the above-mentioned embodiments, the rotating pair includes a fixed bushing arranged on the support arm, a rotating bushing arranged on the mounting plate, and a pin shaft matched with the fixed bushing and the rotating bushing. In other embodiments, the rotating pair also It can include a fixed shaft sleeve arranged on the support arm and a rotating pin shaft fixed on the mounting plate, or a fixed shaft sleeve arranged on the supporting arm and a rotating shaft sleeve fixed on the mounting plate, as long as the composition A rotating pair that can realize the hinged connection of the rotating part and the fixed part is sufficient.

In the above embodiment, three hinges are provided between the cabinet body and the cabinet door, and the fixing bases of the three hinges are integrally connected together to form a fixing plate, which can improve the strength of the hinge and prolong the service life of the hinge. In other embodiments, the three hinges can also be separately provided, and the fixing bases of each hinge are fixedly connected to the cabinet separately.

In the above embodiments, each hinge is provided with two support arms, so there is a middle gap for accommodating the mounting plate between the two support arms, so as to ensure the normal closing of the cabinet door. In other embodiments, only one supporting arm may be provided, and the rotating part of the hinge is supported by the supporting arm.

The utility model also provides an embodiment of a hinge for a switchgear. The structure of the hinge in this embodiment is the same as that of the hinge in the above embodiment of the switchgear, and will not be repeated here.

Claims (10)

1. The hinge for the switch cabinet, including the fixed part used to be fixed on the switch cabinet body and the rotating part hinged with the fixed part through the rotating pair and used to be fixed on the door of the switch cabinet. The supporting arm extended by the rotating pair is characterized in that: the rotating part includes a mounting plate corresponding to the side of the switch cabinet door, and the rotating pair is arranged between the supporting arm and the mounting plate. The mounting plate is provided with a fastening screw mounting hole for wearing and fixing the fastening screw connecting the rotating part and the corresponding side of the cabinet door, and the mounting plate is close to the The support arm or the close position overlapping with the support arm along the extension direction of the rotation center line is used to correspond to the closed state of the cabinet door and the open position is far away from the support arm and is used to correspond to the open state of the cabinet door . 2. The hinge for switchgear according to claim 1, characterized in that: said revolving pair comprises a fixed shaft sleeve fixedly connected to the support arm, a rotating shaft sleeve fixedly connected to the mounting plate, and a fixed shaft sleeve 1. The pin shaft mated with the rotating shaft sleeve, the fixed shaft sleeve supports and cooperates with the rotating shaft sleeve, and the rotation center line of the rotating pair coincides with the axis of the pin shaft. 3. The hinge for switchgear according to claim 2, characterized in that: two support arms on the fixed part are arranged correspondingly on both sides of the mounting plate in the axis extension direction of the pin shaft, and the two support arms A mounting plate corresponding to the closing position of the mounting plate is left between the arms for accommodating the rotating part when the cabinet door is closed so that the mounting plate overlaps with the support arm in the middle along the extension direction of the rotation centerline gap. 4. The hinge for switchgear according to claim 1, 2 or 3, characterized in that: the fixed part has a fixed base for being arranged outside the cabinet and fixedly connected with the cabinet, and the fixed base has a fixed base for As for the stop surface that cooperates with the cabinet body, the support arm of the fixing part is fixed on the fixed base and arranged away from the stop surface. 5. The hinge for switchgear according to claim 4, characterized in that: there are more than two hinges arranged along the up-down direction, and the fixing bases of the fixing parts of each hinge are integrally connected together to form an extension along the up-down direction The fixing plate is evenly distributed with fixing screw mounting holes for wearing and fixing the fixing screws connecting the fixing plate and the cabinet along the up and down direction. 6. A switchgear, comprising a cabinet body and a cabinet door hinged on the cabinet body by a hinge, the hinge includes a fixed part fixed on the cabinet body and a rotating part fixed on the cabinet door, the rotating part is connected with the rotating pair The fixed part is hinged, and the fixed part is provided with a supporting arm extending toward the rotating pair, and it is characterized in that: the rotating part includes a mounting plate corresponding to the side of the cabinet door, and the mounting plate is connected to the cabinet door through fastening screws. The side of the revolving pair is fixed, and there are fastening screw mounting holes on the mounting plate. The mounting plate is close to the support arm or rotates with the support arm along the rotation stroke of the rotating pair. The overlapping closed position corresponding to the closed state of the cabinet door in the extension direction of the center line and the open position corresponding to the open state of the cabinet door away from the support arm. 7. The switchgear according to claim 6, characterized in that: said rotating pair comprises a fixed shaft sleeve fixedly connected with the support arm, a rotating shaft sleeve fixedly connected with the installation plate, and a fixed shaft sleeve, a rotating The pin shaft mated with the shaft sleeve, the fixed shaft sleeve supports and cooperates with the rotating shaft sleeve, and the rotation centerline of the rotating pair coincides with the axis of the pin shaft. 8. The switchgear according to claim 7, characterized in that: two support arms on the fixed part are arranged correspondingly on both sides of the mounting plate in the direction of the axial extension of the pin shaft, and one of the two support arms is There is a middle gap corresponding to the closing position of the mounting plate for accommodating the rotating part when the cabinet door is closed so that the mounting plate overlaps with the support arm along the extension direction of the rotation centerline. 9. The switch cabinet according to claim 6, 7 or 8, characterized in that: the fixed part has a fixed base arranged outside the cabinet and fixedly connected with the cabinet, and the fixed base has a The stop surface of the fixed part is fixed on the fixed base and arranged away from the stop surface. 10. The switch cabinet according to claim 9, characterized in that: the cabinet body and the cabinet door both extend in the up and down direction, and there are more than two hinges arranged in the up and down direction, and the fixing parts of each hinge The fixed bases are integrally connected together to form a fixed plate extending in the up and down direction, and the fixed plate is uniformly arranged with fixing screw mounting holes for wearing and fixing the fixing screws connecting the fixed plate and the cabinet along the up and down direction.