Side-operated adapter and low-voltage switchgear

Abstract

The present invention provides a side-operated adapter and a low-voltage switch cabinet, wherein the side-operated adapter includes a connector, an insulating outer frame, and a main shell; the outer frame includes a columnar frame and a flat plate frame, the columnar frame has a accommodating cavity and a rear opening and a front opening connected to the accommodating cavity, and the flat plate frame is connected to the front opening of the columnar frame; the main shell includes a first part inserted into the accommodating cavity of the columnar frame and a second part exposed on the surface of the flat plate frame, the first part is provided with an installation cavity connected to the rear opening of the columnar frame, the connector is assembled in the installation cavity, and the front surface of the second part is provided with a socket for inserting an operating handle, and the socket and the installation cavity are not connected, which can effectively save space and reduce the size of the switch cabinet.

Description

Technical Field

[0001] The present invention relates to a low-voltage switch cabinet, in particular to a side-operated adapter and a low-voltage switch cabinet having the side-operated adapter. Background Art

[0002] The handle of a low-voltage switch (such as a fuse combination appliance, an isolating switch, a double-throw switch, etc.) is usually fixedly installed on the door panel of the low-voltage switch cabinet and connected to the switch switching device of the low-voltage switch. The state of the low-voltage switch is switched by pulling the handle of the low-voltage switch.

[0003] In the prior art, the handle of a low-voltage switch is generally fixed on the inner door panel of a cabinet, as shown in CN215644162U. The handle generally includes a connector, and the entire handle is exposed on the inner door panel. The handle is large in size, and it is difficult to shorten the distance between the inner door panel and the outer door panel; as a result, it is difficult to further reduce the volume of the cabinet. Summary of the Invention

[0004] Therefore, in order to solve the above problems, the present invention provides a side-operated adapter and a low-voltage switch cabinet having the side-operated adapter.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A side-operated adapter comprises a connector, an insulating outer frame and a main shell; the outer frame comprises a cylindrical frame and a flat plate frame, the cylindrical frame has a accommodating cavity and a rear opening and a front opening connected to the accommodating cavity, and the flat plate frame is connected to the front opening of the cylindrical frame; the main shell comprises a first part inserted into the accommodating cavity of the cylindrical frame and a second part exposed on the surface of the flat plate frame, the first part is provided with an installation cavity connected to the rear opening of the cylindrical frame, the connector is assembled in the installation cavity, and the front surface of the second part is provided with a socket for inserting a handle, and the socket and the installation cavity are not connected.

[0007] Furthermore, the main shell is also provided with a movable buckle and an elastic member, the first part of the main shell is provided with a guide rail groove connected to the installation cavity, the cylindrical frame is provided with a limiting notch corresponding to the guide rail groove at the rear opening position, the movable buckle can be movably assembled in the guide rail groove, the elastic member applies a force toward the rear opening direction to the movable buckle to drive the movable buckle to insert into the limiting notch, the connector is provided with an abutting protrusion corresponding to the guide rail groove, and the insertion of the connector abuts on the movable buckle through the abutting protrusion and drives the movable buckle to disengage from the limiting notch.

[0008] Furthermore, the second portion has a raised I-shaped raised portion, and the socket is arranged on the I-shaped raised portion.

[0009] Furthermore, an opening indication icon and a closing indication icon are provided on the flat frame, and a pointed indication portion is formed on one side of the I-shaped raised portion so that the indication portion corresponds to the opening indication icon and the closing indication icon respectively when the side-operated adapter performs opening and closing operations.

[0010] A low-voltage switch cabinet comprises a cabinet body and a low-voltage switch assembled in the cabinet body; the cabinet body has an inner door panel for installing the low-voltage switch and an outer door panel located outside the inner door panel, and the low-voltage switch is not arranged beyond the inner door panel; it also includes the side-operated adapter and the operating handle as described above; the cylindrical frame of the side-operated adapter passes through the inner door panel and is connected to the low-voltage switch through a connector, the flat frame is fixed on the inner door panel, and the second part of the main shell is exposed on the inner door panel; the operating handle forms a detachable plug-in fit with the socket of the side-operated adapter.

[0011] Furthermore, a padlock is provided on the main shell, and a limiting structure that cooperates with the padlock is provided on the inner door panel.

[0012] Furthermore, the padlock includes a padlock plate and a first return spring, the main shell is provided with a padlock cavity and a front opening, a first side opening and a second side opening connected to the padlock cavity, the front opening is formed on the front surface of the second part, the first side opening is formed on the side surface of the second part, and the second side opening is formed on the side surface of the first part and is exposed outside the cylindrical frame; the padlock plate is accommodated in the padlock cavity and has a hand-held portion extending out of the first side opening, a clamping portion extending out of the second side opening and a padlock portion corresponding to the front opening, and a padlock hole is provided on the padlock portion; the first return spring applies a force to the padlock plate toward the rear opening; the limiting structure of the inner door panel is a limiting clamp corresponding to the second side opening.

[0013] Furthermore, the padlock includes a pressing key and a second return spring, the second part of the main shell is provided with a through slot extending from front to back, the pressing key is assembled in the through slot, and the second return spring applies a forward elastic force to the pressing key; the limiting structure of the inner door panel is a limiting bayonet corresponding to the through slot, the pressing key is provided with a padlock hole, and the second part is provided with a connecting hole, and when the pressing key is pressed until it is stuck in the limiting bayonet, the padlock hole corresponds to the connecting hole.

[0014] Furthermore, the operating handle is provided with a snap-fit ​​spring piece, and when the operating handle is inserted into the socket of the side-operated adapter and is in place, the snap-fit ​​spring piece is snapped into the socket.

[0015] Furthermore, the operating handle includes an inserted vertical rod and a handheld horizontal rod connected to each other. The handheld horizontal rod is arranged perpendicular to the inserted vertical rod and can move in the length direction of the handheld horizontal rod.

[0016] The technical solution provided by the present invention has the following beneficial effects:

[0017] The solution of the present application can insert the connector part into the interior of the inner door panel and connect it to the low-voltage switch, thereby greatly reducing the size exposed on the inner door panel, that is, the size of the second part. At the same time, the operating handle is detachable and can be removed and placed elsewhere when not in operation. In this way, the distance between the inner door panel and the outer door panel can be greatly shortened, so that the cabinet volume of the switch cabinet can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows the appearance of the side-operated adapter in the first embodiment;

[0019] Figure 2 Shown is a rear view of the side-operated adapter in Example 1;

[0020] Figure 3 The figure shows a schematic diagram of the structure decomposition of the side-operated adapter in the first embodiment;

[0021] Figure 4 The figure shows a schematic diagram of the matching structure of the side operating adapter assembled to the inner door panel and corresponding to the operating handle in the first embodiment;

[0022] Figure 5 The figure shows a cross-sectional view of the side-operated adapter in the first embodiment when it is applied to a low-voltage switch cabinet and in the unlocked position;

[0023] Figure 6 The figure shows a cross-sectional view of the side-operated adapter in the first embodiment when it is applied to a low-voltage switch cabinet and is in the padlock position;

[0024] Figure 7 The figure shows the structure diagram of the outer frame in the first embodiment;

[0025] Figure 8 The figure shows a cross-sectional view of the structure of the outer frame in the first embodiment;

[0026] Figure 9 Shown is a structural cross-sectional view of the main housing in Example 1;

[0027] Figure 10 The figure shows the matching structure diagram of the side operating adapter assembled to the inner door panel in the second embodiment;

[0028] Figure 11 Shown Figure 10 Cross-sectional view of the structure shown. DETAILED DESCRIPTION

[0029] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the present disclosure and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, one of ordinary skill in the art will understand other possible embodiments and the advantages of the present invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] Reference Figures 1 to 3 ,as well as Figures 7 to 9 As shown, the side-operated adapter 100 provided in this embodiment includes a connector 30, an insulating outer frame 10, and a main shell 20; that is, the outer frame 10 and the main shell 20 are both made of insulating materials. The outer frame 10 includes a cylindrical frame 11 and a flat frame 12. The cylindrical frame 11 has a accommodating cavity 101 and a rear opening 102 and a front opening 103 connected to the accommodating cavity 101. The flat frame 12 is connected to the front opening 103 of the cylindrical frame 11. The main shell 20 includes a first part 21 inserted into the accommodating cavity 101 of the cylindrical frame 11 and a second part 22 exposed on the surface of the flat frame 12. The first part 21 is provided with an installation cavity 201 connected to the rear opening 102 of the cylindrical frame 11. The connector 30 is assembled in the installation cavity 201. The rotation of the main shell 20 relative to the outer frame 10 can synchronously drive the connector 30 to rotate together. The front surface of the second part 22 is provided with a socket 202 for inserting the operating handle, and the socket 202 is not connected to the installation cavity 201. The connector 30 is used to connect the low-voltage switch, and the socket 202 is not connected to the installation cavity 201, which can play a good insulation role.

[0033] This embodiment also provides a low-voltage switch cabinet, including a cabinet body and a low-voltage switch assembled in the cabinet body; Figures 4 to 6 As shown, the cabinet has an inner door panel 1 on which a low-voltage switch is mounted, and an outer door panel located outside the inner door panel 1. The low-voltage switch is not positioned beyond the inner door panel 1. Specifically, the cabinet further includes the side-operated adapter 100 and the operating handle 60 described above. The cylindrical frame 11 of the side-operated adapter 100 passes through the inner door panel 1 and is connected to the low-voltage switch via a connector 30. The flat frame 12 is fixed to the inner door panel 1. The second portion 22 of the main housing 20 is exposed outside the inner door panel 1. The operating handle 60 forms a removable plug-in fit with the socket 202 of the side-operated adapter 100.

[0034] The connector 30 is partially inserted into the interior of the inner door panel 1 and connected to the low-voltage switch, thereby greatly reducing the size exposed on the inner door panel 1, that is, the size of the second portion 22. At the same time, the operating handle 60 is detachable and can be removed and placed elsewhere when not in operation. In this way, the distance between the inner door panel 1 and the outer door panel can be greatly shortened, so that the cabinet volume of the switch cabinet is further reduced; and the structural design is simple and ingenious.

[0035] The specific operation is as follows: the connector 30 is partially inserted into the interior of the inner door panel 1 and connected to the low-voltage switch. When the opening and closing operation is required, the operating handle 60 is inserted into the jack 202, thereby driving the main housing 20 and the connector 30 to rotate to realize the opening and closing operation. After the operation is completed, the operating handle 60 can be pulled out.

[0036] Specifically, the structure of the connector 30 is prior art, as shown in CN215644162U, etc., and will not be described in detail here.

[0037] Specifically, in this embodiment, the main shell 20 is further provided with a movable buckle 41 and an elastic member 42 (specifically a spring). The first part 21 of the main shell 20 is provided with a guide rail groove 204 connected to the installation cavity 201, and the guide rail groove 204 is not connected to the socket 202. The cylindrical frame 11 is provided with a limiting notch 13 corresponding to the guide rail groove 204 at the rear opening 102. The movable buckle 41 can be movably assembled in the guide rail groove 204. The elastic member 42 applies a force toward the rear opening 102 to the movable buckle 41 to drive the movable buckle 41 to be inserted into the limiting notch 13. The connector 30 is provided with an abutting protrusion 31 corresponding to the guide rail groove 204. The insertion of the connector 30 is abutted on the movable buckle 41 through the abutting protrusion 31 and drives the movable buckle 41 to disengage from the limiting notch 13. With this arrangement, when the connector 30 is not assembled or not properly installed, the movable buckle 41 is driven by the elastic member 42 to be stuck in the limiting notch 13. At this time, the main housing 20 and the outer frame 10 are locked by the movable buckle 41, and the main housing 20 cannot rotate, preventing invalid operation caused by the connector 30 not being properly installed. Only when the connector 30 is properly installed, the abutting protrusion 31 of the connector 30 abuts the movable buckle 41 and drives the movable buckle 41 forward, thereby disengaging from the limiting notch 13. The limiting position between the main housing 20 and the outer frame 10 is released, and the main housing 20 and the connector 30 can rotate normally.

[0038] Specifically, in this embodiment, the second portion 22 has a raised straight-line raised portion 221, and the socket 202 is provided on the straight-line raised portion 221. The used portion is concentrated on the straight-line raised portion 221, and the two sides can be removed, saving material cost and weight. More specifically, the flat frame 12 is provided with an opening indicator icon and a closing indicator icon. One side of the straight-line raised portion 221 forms a pointed indicator portion 222, so that the indicator portion corresponds to the opening indicator icon and the closing indicator icon respectively when the side-operated adapter 100 performs opening and closing operations. For example, when the main housing 20 is rotated to the opening position, the indicator portion 222 of the straight-line raised portion 221 points to the opening indicator icon of the flat frame 12. When the main housing 20 is rotated to the closing position, the indicator portion 222 of the straight-line raised portion 221 points to the closing indicator icon of the flat frame 12. This can provide a more intuitive display without the need for additional indicator structures, resulting in a simpler structure.

[0039] Specifically, in this embodiment, in order to prevent misoperation during maintenance, a padlock 50 is provided on the main shell 20, and a limiting structure that cooperates with the padlock 50 is provided on the inner door panel 1. The setting of the padlock 50 can cooperate with the limiting structure of the inner door panel 1 to make the side-operated adapter 100 unable to perform opening and closing operations, thereby preventing the risks caused by misoperation during maintenance.

[0040] More specifically, the padlock 50 includes a padlock piece 51 and a first return spring 52. The main housing 20 is provided with a padlock cavity 203 and a front opening 2031 communicating with the padlock cavity 203, a first side opening 2032, and a second side opening 2033. The front opening 2031 is formed on the front surface of the second portion 22, that is, formed on the I-shaped raised portion 221. The first side opening 2032 is formed on the side surface of the second portion 22. The second side opening 2033 is formed on the side surface of the first portion 21 and The padlock 51 is exposed outside the cylindrical frame 11. The padlock 51 is accommodated in the padlock cavity 203 and comprises a handle 512 extending from the first side opening 2032, a clamping portion 513 extending from the second side opening 2033, and a padlock portion 511 corresponding to the front opening 2031. The padlock portion 511 is provided with a padlock hole 514. The first return spring 52 applies a force toward the rear opening 102 (i.e., a backward force) to the padlock 51. The limiting structure of the inner door panel 1 is a limiting latch 2 corresponding to the second side opening 2033. Under normal circumstances, the padlock 51 is maintained in the unlocked position by the action of the first return spring 52. Figure 5As shown, in the unlocked position, the padlock portion 511 does not extend out of the front opening 2031, and the engaging portion 513 is not engaged with the limiting slot 2 of the inner door panel 1. When the padlock is needed, the handle 512 is applied to push the padlock piece 51 forward, and the padlock piece 51 overcomes the action of the first return spring 52 and moves forward, as shown in FIG. Figure 6 As shown, the padlock portion 511 extends out of the front opening 2031, and the padlock hole 514 exposes the front opening 2031 at this time. The clamping portion 513 is clamped into the limit clamping slot 2 of the inner door panel 1, and the lock is locked through the padlock hole 514, so that the clamping portion 513 remains clamped in the limit clamping slot 2 of the inner door panel 1 and reaches the padlock position; at this time, a limit is formed between the main shell 20 and the inner door panel 1, and the main shell 20 cannot rotate, that is, the opening and closing operations cannot be performed.

[0041] Furthermore, the padlock piece 51 is provided with a long guide slot 515 extending forward and backward, and the padlock 50 also includes a limit pin 53 arranged on the main shell 20, and the limit pin 53 is passed through the long guide slot 515 of the padlock piece 51, so that the padlock piece 51 can be effectively limited and guided.

[0042] Preferably, the operating handle 60 is provided with a snap-fit ​​spring piece 63. When the operating handle 60 is inserted into the insertion hole 202 of the side operation adapter 100 and is in place, the snap-fit ​​spring piece 63 snaps into the insertion hole 202. In this manner, the snap-fit ​​spring piece 63 can hinder the insertion of the operating handle 60. During insertion, the operator is required to apply a large force. During the insertion process, the snap-fit ​​spring piece 63 deforms, and after being inserted into place, it recovers and snaps into the insertion hole 202, creating an "insert-into-place" effect, thereby preventing damage caused by the operating handle 60 not being fully inserted.

[0043] Specifically, the operating handle 60 includes a connected insertion vertical rod 61 and a handheld horizontal rod 62. The handheld horizontal rod 62 is arranged perpendicular to the insertion vertical rod 61 and can move in the length direction of the handheld horizontal rod 62, that is, it can move horizontally. This arrangement allows for operation by grasping both ends of the handheld horizontal rod 62 with both hands and rotating it. When an obstacle is encountered on one side, the handheld horizontal rod 62 can be slid to the other side to avoid the obstacle. This simple structure has a wide range of applicability. Of course, in other embodiments, the structure of the operating handle 60 is not limited to this.

[0044] Example 2

[0045] The present embodiment provides a low-voltage switch cabinet having a structure similar to that of the first embodiment, except that the design structure of the padlock is different. In the present embodiment, referring to Figure 10 and Figure 11As shown, the padlock 50 includes a pressing key 54 and a second return spring 55. The second part 22 of the main shell 20 is provided with a through slot hole that passes through the front and back. The pressing key 54 is assembled in the through slot hole. The second return spring 55 applies a forward elastic force to the pressing key 54, that is, a force away from the rear opening 102. The limiting structure of the inner door panel 1 is a limiting bayonet 2 corresponding to the through slot hole. A padlock hole 543 is provided on the pressing key 54, and a connecting hole 223 is provided on the second part 22. When the pressing key 54 is pressed until it is stuck in the limiting bayonet 2, the padlock hole 543 corresponds to the connecting hole 223.

[0046] Under normal circumstances, the push button 54 remains in the unlocked position under the action of the second return spring 55. In the unlocked position, the push button 54 basically remains flush with the front surface of the second part 22, and the push button 54 is not stuck in the limit slot 2 of the inner door panel 1.

[0047] When padlocking is required, the push button 54 is pressed to move the push button 54 backward until it is stuck in the limit bayonet 2. At this time, the padlock hole 543 corresponds to the connecting hole 223, and can be fixed by fixing parts such as pins to keep the push button 54 stuck in the limit bayonet 2 of the inner door panel 1 to reach the padlock position; at this time, a limit is formed between the main shell 20 and the inner door panel 1, and the main shell 20 cannot be rotated, that is, the opening and closing operations cannot be performed.

[0048] Specifically, in this embodiment, the push button 54 includes a button portion 541 and a snap-fit ​​portion 542 that are connected. The button portion 541 is used for pressing, and the snap-fit ​​portion 542 is used for snapping with the limit bayonet 2. Of course, in other embodiments, the push button 54 can also be an integrated connection structure.

[0049] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A side-operated adapter, characterized in that: The invention comprises a connector, an insulating outer frame and a main housing; the outer frame comprises a cylindrical frame and a flat plate frame, the cylindrical frame having a receiving cavity and a rear opening and a front opening communicating with the receiving cavity, and the flat plate frame is connected to the front opening of the cylindrical frame; the main housing comprises a first portion inserted into the receiving cavity of the cylindrical frame and a second portion exposed on the surface of the flat plate frame, the first portion defining a mounting cavity communicating with the rear opening of the cylindrical frame, the connector being assembled in the mounting cavity, and the front surface of the second portion defining a socket for inserting an operating handle, the socket being disconnected from the mounting cavity; The main shell is further provided with a movable buckle and an elastic member, a guide rail groove communicating with the mounting cavity is provided on the first portion of the main shell, a limiting notch corresponding to the guide rail groove is provided at the rear opening position of the cylindrical frame, the movable buckle can be movably assembled in the guide rail groove, the elastic member applies a force toward the rear opening direction to the movable buckle to drive the movable buckle to insert into the limiting notch, the connector is provided with an abutting protrusion corresponding to the guide rail groove, and the insertion of the connector abuts on the movable buckle through the abutting protrusion and drives the movable buckle out of the limiting notch; The second portion has a raised straight-line convex portion, and the insertion hole is arranged on the straight-line convex portion; The flat frame is provided with an opening indication icon and a closing indication icon, and one side of the I-shaped raised portion forms a pointed indication portion so that the indication portion corresponds to the opening indication icon and the closing indication icon respectively when the side-operated adapter performs opening and closing operations.

2. A low-voltage switchgear cabinet comprising a cabinet body and a low-voltage switch mounted within the cabinet body; the cabinet body having an inner door panel for mounting the low-voltage switch and an outer door panel located outside the inner door panel, wherein the low-voltage switch is disposed within the inner door panel; and characterized in that: It also includes the side-operated adapter and operating handle as described in claim 1; the cylindrical frame of the side-operated adapter passes through the inner door panel and is connected to the low-voltage switch through a connector, the flat frame is fixed on the inner door panel, and the second part of the main shell is exposed on the inner door panel; the operating handle forms a detachable plug-in fit with the socket of the side-operated adapter.

3. The low-voltage switchgear according to claim 2, characterized in that: The main shell is provided with a padlock, and the inner door panel is provided with a limiting structure matched with the padlock.

4. The low-voltage switchgear according to claim 3, characterized in that: The padlock includes a padlock plate and a first return spring. The main housing defines a padlock cavity, a front opening communicating with the padlock cavity, a first side opening, and a second side opening. The front opening is formed on the front surface of the second portion, the first side opening is formed on the side surface of the second portion, and the second side opening is formed on the side surface of the first portion and is exposed outside the cylindrical frame. The padlock piece is accommodated in the padlock cavity and comprises a handle extending out of the first side opening, a clamping portion extending out of the second side opening, and a padlock portion corresponding to the front opening; a padlock hole is provided on the padlock portion; the first return spring applies a force toward the rear opening to the padlock piece; the limiting structure of the inner door panel is a limiting clamp corresponding to the second side opening.

5. The low-voltage switchgear according to claim 3, characterized in that: The padlock includes a pressing key and a second return spring. The second part of the main shell is provided with a through slot extending from front to back. The pressing key is assembled in the through slot, and the second return spring applies a forward elastic force to the pressing key. The limiting structure of the inner door panel is a limiting bayonet corresponding to the through slot. A padlock hole is provided on the pressing key, and a connecting hole is provided on the second part. When the pressing key is pressed until it is stuck in the limiting bayonet, the padlock hole corresponds to the connecting hole.

6. The low-voltage switchgear according to claim 2, characterized in that: The operating handle is provided with a snap-fit ​​spring piece. When the operating handle is inserted into the socket of the side-operated adapter and falls into place, the snap-fit ​​spring piece is snapped into the socket.

7. The low-voltage switchgear according to claim 2 or 6, characterized in that: The operating handle comprises an inserting vertical rod and a hand-held horizontal rod which are connected to each other. The hand-held horizontal rod is arranged perpendicular to the inserting vertical rod and can move in the length direction of the hand-held horizontal rod.

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