Looped network switch cabinet

Abstract

The utility model discloses a looped network switch cabinet which comprises a cabinet body, two vertical supports and a plurality of transverse supports. A plurality of protrusions are arranged at the front end of the vertical support at intervals, and positioning holes corresponding to the protrusions are formed in the inner side of the vertical support. The transverse bracket comprises a main body section, guide sections which are arranged at two ends of the main body section and form a right angle with the main body section, and a positioning section; the end face, in lap joint with the vertical support, of the positioning section is provided with a magnetic block, and the end of the positioning section is provided with a positioning groove matched with the protrusion. The guide section is provided with a guide sleeve matched with the positioning hole, a movable positioning pin is sleeved with the guide sleeve, the end of the guide sleeve is fixedly connected with a cover body, and a reset spring is arranged in the guide sleeve and located between the positioning pin and the cover body. The outer wall of the guide sleeve is provided with an L-shaped guide hole, and the positioning pin is fixedly connected with an operating rod extending out of the guide hole. The utility model has the advantages that an operator does not need to support the transverse bracket with force, and the operation is more labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of power supply and distribution equipment technology, and in particular to a ring network switch cabinet. Background Technology

[0002] Ring main unit (RMU) switchgear is a medium-voltage power distribution device widely used in power distribution networks. It is primarily used in ring-shaped power supply networks to achieve power distribution and protection. RMU switchgear typically integrates load switches, circuit breakers or fuse switchgear, grounding switches, instrument transformers, and other components, capable of performing functions such as power connection, disconnection, transfer, and short-circuit protection. Its compact design, safe and reliable operation, and ease of maintenance make it suitable for installation in various locations such as residential areas, commercial centers, industrial facilities, and public infrastructure. Furthermore, RMU switchgear supports modular expansion, allowing for flexible configuration to meet different power system requirements.

[0003] Chinese utility model patent publication number CN 221467145 U discloses an insulated compact ring main switchgear. It addresses the lack of tools required for adjusting the distance between the horizontal supports by installing a fixing block, an arc-shaped elastic plate, a connecting plate, and a lever plate on the horizontal supports. These components, in conjunction with a support block and an anti-detachment strip, utilize the elasticity of the arc-shaped elastic plate to engage the slot on the connecting plate with the anti-detachment strip. However, the horizontal supports require simultaneous force on both sides during installation and removal, making the operation somewhat difficult. Therefore, improvement is necessary. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a ring network switch cabinet.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A ring main unit includes a cabinet, two vertical supports symmetrically fixed to the cabinet, and multiple horizontal supports connected to the vertical supports. The front ends of the vertical supports are provided with multiple protrusions, and the inner sides are provided with positioning holes corresponding to the protrusions. Each horizontal support includes a main body section, guide sections located at both ends of the main body section and arranged at right angles to the main body section, and positioning sections located at the ends of the guide sections and overlapping with the front ends of the vertical supports. The end face of the positioning section overlapping with the vertical supports is provided with a magnetic block, and the end of the positioning section is provided with a positioning groove that mates with the protrusions. The guide sections are provided with guide sleeves that mate with the positioning holes, and movable positioning pins are fitted inside the guide sleeves. A cover is fixed to the end of the guide sleeve, and a return spring is provided inside the guide sleeve, located between the positioning pin and the cover. An L-shaped guide hole is formed on the outer wall of the guide sleeve, and an operating rod extending out of the guide hole is fixed to the positioning pin.

[0007] Preferably, the protrusion is hemispherical.

[0008] Preferably, the magnetic block is rectangular and is bonded to the horizontal support.

[0009] Preferably, the cover and the guide sleeve are connected by threads.

[0010] Preferably, the end of the locating pin is chamfered.

[0011] Preferably, the operating lever and the positioning pin are connected by a thread.

[0012] Preferably, the positioning groove is an open groove.

[0013] The above technical solution has the following advantages:

[0014] This invention features a horizontal support with magnetic blocks at both ends. These magnetic blocks possess sufficient magnetic force to firmly adhere to the vertical supports on both sides. This design not only enhances the connection stability between the horizontal and vertical supports but also provides adsorption force during the installation and adjustment of the horizontal support, eliminating the need for operators to exert force on it, thus reducing operating effort. Simultaneously, positioning mechanisms are incorporated at both ends of the horizontal support. These mechanisms allow operators to perform operations sequentially, ensuring each step is completed accurately. This innovative design makes adjusting the spacing between the horizontal supports more convenient and faster, significantly improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention, in which the door at the bottom of the cabinet is omitted;

[0016] Figure 2 for Figure 1 Enlarged view of section A;

[0017] Figure 3 for Figure 1 Exploded view of a local component;

[0018] Figure 4 for Figure 3 Enlarged view of section B;

[0019] Figure 5 This is a magnified 3D view of the horizontal support frame;

[0020] Figure 6 for Figure 5 Enlarged view of section C;

[0021] Figure 7 This is a rear-view enlarged view of the horizontal support;

[0022] Figure 8 for Figure 7 Enlarged view of section D;

[0023] Figure 9 This is a magnified 3D view of the positioning groove and the operating lever after assembly.

[0024] In the diagram: 1-cabinet, 2-vertical support, 3-horizontal support, 4-protrusion, 5-positioning hole, 6-main body section, 7-guide section, 8-positioning section, 9-magnetic block, 10-positioning groove, 11-guide sleeve, 12-positioning pin, 13-cover, 14-reset spring, 15-guide hole, 16-operating lever. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0026] As shown in the attached diagram, a ring main unit includes a cabinet 1, two vertical supports 2 symmetrically fixed within the cabinet 1, and multiple horizontal supports 3 connected to the vertical supports 2. The front ends of the vertical supports 2 are provided with multiple protrusions 4 at intervals, and the inner sides are provided with positioning holes 5 corresponding to the protrusions 4. Each horizontal support 3 includes a main body section 6, guide sections 7 located at both ends of the main body section 6 and arranged at right angles to the main body section 6, and positioning sections 8 located at the ends of the guide sections 7 and overlapping with the front ends of the vertical supports 2. The positioning sections 8 overlap with the vertical supports 2. A magnetic block 9 is provided on the end face of the connector. A positioning groove 10 that mates with the protrusion 4 is provided at the end of the positioning section 8. A guide sleeve 11 that mates with the positioning hole 5 is provided on the guide section 7. A movable positioning pin 12 is fitted inside the guide sleeve 11. A cover 13 is fixedly connected to the end of the guide sleeve 11. A return spring 14 is provided inside the guide sleeve 11, located between the positioning pin 12 and the cover 13. An L-shaped guide hole 15 is provided on the outer wall of the guide sleeve 11. An operating rod 16 extending out of the guide hole 15 is fixedly connected to the positioning pin 12. Correspondingly, a through hole (not shown in the figure) communicating with the guide sleeve 11 is provided on the guide section 7 to allow the positioning pin 12 to pass through the through hole and enter; locking is achieved in the positioning hole 5.

[0027] As a preferred technical solution in this embodiment, the protrusion 4 is hemispherical, and the corresponding positioning groove 10 is also in a matching shape. This structure makes positioning more convenient and faster. Obviously, a cylindrical or other shape can also be used.

[0028] As a preferred technical solution in this embodiment, the magnetic block 9 is rectangular and is bonded to the horizontal support 3; obviously, the magnetic block 9 can also be circular or other suitable shapes.

[0029] As a specific technical solution in this embodiment, the cover 13 and the guide sleeve 11 are connected by threads. The end of the positioning pin 12 is chamfered to facilitate movement and docking into the corresponding hole. The operating rod 16 and the positioning pin 12 are preferably connected by threads.

[0030] As a preferred technical solution in this embodiment, the positioning groove 10 is an open groove, which makes it easier to observe the position of the protrusion 4 and makes the moving positioning operation more convenient.

[0031] In use, the operating lever 16 on one side is moved along the guide hole 15 to compress the return spring 14. When the operating lever 16 reaches the corner of the guide hole 15, the operating lever 16 is rotated to enter the other side of the guide hole 15. At this time, the positioning pin 12 is dislodged from the positioning hole 5. The other side is operated in the same way. Then, the magnetic attraction of the magnet 9 can be overcome to separate the horizontal support 3 from the vertical support 2. Next, the horizontal support 3 is moved to the required position and the positioning groove 10 is engaged with the protrusion 4. At this time, the magnet 9 attracts and connects the horizontal support 3 and the vertical support 2. Then, the operating lever 16 is rotated in the opposite direction to enter the other side of the guide hole 15. Under the action of the return spring 14, the operating lever 16 enters the positioning hole 5 to lock.

[0032] The horizontal support 3 of this invention has magnetic blocks 9 at both ends. The magnetic blocks 9 have sufficient magnetic force to firmly adhere to the vertical supports 2 on both sides. This design not only enhances the connection stability between the horizontal support 3 and the vertical supports 2, but also provides adsorption force during the installation and adjustment of the horizontal support 3. Operators do not need to exert force to support the horizontal support 3, making the operation more labor-saving.

[0033] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A ring main unit, comprising a cabinet (1), two vertical supports (2) symmetrically fixed within the cabinet (1), and multiple horizontal supports (3) connected to the vertical supports (2); characterized in that: The front end of the vertical support (2) is provided with a plurality of protrusions (4) spaced apart, and the inner side is provided with positioning holes (5) corresponding to the protrusions (4); the horizontal support (3) includes a main body section (6), guide sections (7) arranged at both ends of the main body section (6) at right angles to the main body section (6), and positioning sections (8) arranged at the ends of the guide sections (7) and overlapping with the front end face of the vertical support (2); the end face of the positioning section (8) overlapping with the vertical support (2) is provided with a magnetic block (9), and the end of the positioning section (8) is provided with a mechanism to cooperate with the protrusions (4). The guide section (7) is provided with a positioning groove (10); a guide sleeve (11) is provided on the guide section (7) to cooperate with the positioning hole (5); a movable positioning pin (12) is installed inside the guide sleeve (11); a cover (13) is fixedly connected to the end of the guide sleeve (11); a return spring (14) is provided inside the guide sleeve (11) and between the positioning pin (12) and the cover (13); an L-shaped guide hole (15) is opened on the outer wall of the guide sleeve (11); an operating rod (16) extending out of the guide hole (15) is fixedly connected to the positioning pin (12).

2. Ring main switchgear according to claim 1, characterized in that The protrusion (4) is hemispherical.

3. Ring main switchgear according to claim 1 or 2, characterized in that: The magnetic block (9) is rectangular and is bonded to the horizontal support (3).

4. Ring main switchgear according to claim 1 or 2, characterized in that: The cover (13) and the guide sleeve (11) are connected by threads.

5. Ring main switchgear according to claim 1 or 2, characterized in that: The end of the positioning pin (12) is chamfered.

6. Ring main switchgear according to claim 1 or 2, characterized in that: The operating lever (16) and the positioning pin (12) are connected by threads.

7. Ring main switchgear according to claim 1 or 2, characterized in that: The positioning groove (10) is an open groove.

Images