Inflatable ring main unit

Abstract

The utility model discloses an inflatable ring main unit, which relates to the field of ring main unit bodies and comprises a protective outer box and a limiting mechanism arranged on the protective outer box, and the ring main unit body is placed in the protective outer box. The limiting mechanism comprises a transmission unit, a limiting unit and a sliding seat; the sliding seat is mounted on the inner side of the protective outer box in a sliding manner; the limiting unit is used for providing limiting for the moved sliding seat; and the transmission unit is used for releasing the connection limitation between the plurality of limiting units and the sliding seat. According to the utility model, through the arrangement of the limiting mechanism, when the protection outer box and the ring main unit body need to be installed, the ring main unit body can be directly pushed into the protection outer box by placing the ring main unit body on the upper surface of the sliding seat, and when the sliding seat moves to the maximum distance, the limiting block is clamped into the limiting groove, so that the ring main unit body can be conveniently installed. The installation of the protection outer box and the ring main unit body is completed, the installation of the ring main unit body is further improved, and the ring main unit body can be conveniently taken out to be maintained and repaired.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit body, specifically an inflatable ring main unit. Background Technology

[0002] Gas-insulated ring main units (RMS) are high-voltage switchgear that uses gas (usually sulfur hexafluoride, SF6) as the insulating medium and incorporates a modular design. Their core function is to enable branching, ring network power supply, and terminal power supply for cable lines. They are characterized by their small size, compact structure, and maintenance-free operation, and are widely used in power transmission and distribution.

[0003] In the prior art, when installing the ring main unit, it is necessary to push the ring main unit into the protective outer box. The contact area between the bottom surface of the ring main unit and the inside of the protective outer box is large, which makes it inconvenient to push the ring main unit into the box. When maintenance and repair are required, it is also inconvenient to remove the ring main unit, which needs to be in close contact with the box. Based on this, this utility model proposes an inflatable ring main unit. Utility Model Content

[0004] The purpose of this utility model is to provide an inflatable ring main unit in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inflatable ring main unit, comprising a protective outer casing, wherein the ring main unit body is placed inside the protective outer casing, and further comprising a limiting mechanism disposed on the protective outer casing; the limiting mechanism comprises a transmission unit, a limiting unit, and a sliding seat; the sliding seat is slidably mounted on the inner side of the protective outer casing; the limiting unit is used to limit the sliding seat after it has moved; the transmission unit is used to release the connection between the multiple limiting units and the sliding seat.

[0006] As a further embodiment of this utility model: the limiting unit includes a limiting groove, a limiting block, a positioning rod, and a spring; the limiting groove is formed at the top of the sliding seat, and the limiting groove is used to provide space for the docking of the sliding seat; the limiting block is vertically slidably installed on the inner wall of the protective outer box and extends to the outside of the protective outer box, and the limiting block is used to limit the movement of the sliding seat; the positioning rod is fixed inside the protective outer box and passes through the limiting block, and the positioning rod is used to provide guidance for the vertical movement of the limiting block; the two ends of the spring are respectively engaged with the inner wall of the protective outer box and the top of the limiting block, and the spring is used to always provide a downward compressive force to the limiting block.

[0007] As a further embodiment of this utility model: the transmission unit includes a force-receiving block, a push rod, and a stop block;

[0008] The force-bearing block is fixed to the top of the limiting block and located between the protective outer box and the ring main unit body. The force-bearing block is used to receive the squeezing and pushing force from the abutment block.

[0009] The push rod is axially slidably mounted on the inner wall of the protective outer casing and extends to the outside of the protective outer casing. The push rod is used to synchronously drive the abutment block to move.

[0010] The abutment is fixed to the top of the push rod and located on one side of the force-bearing block. The abutment is used to apply a squeezing force to the force-bearing block to move upward.

[0011] As a further improvement of this utility model: the outer wall of the force-bearing block is generally in the shape of a right-angled trapezoid, and the inclined side of the force-bearing block coincides with the position of the horizontal rod of the force-bearing block.

[0012] As a further improvement of this utility model: the outer wall of the force-bearing block is generally L-shaped, and the number of abutment blocks is set to multiple, with the multiple abutment blocks evenly distributed at the top of the push rod.

[0013] As a further improvement of this utility model: the interior of the protective outer casing is formed with a sliding groove for the vertical movement of the limiting block, and the outer wall of the limiting block is generally in the shape of an "L".

[0014] As a further improvement of this utility model: the end of the limiting block near the limiting groove is inclined, and the outer wall of the limiting block matches the inner side of the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By setting a limiting mechanism, when it is necessary to install the protective outer casing and the ring main unit, the ring main unit can be placed on the upper surface of the sliding seat and pushed directly into the protective outer casing. When the sliding seat moves to the maximum distance, the limiting block is locked into the limiting groove, completing the installation of the protective outer casing and the ring main unit. This further improves the installation of the ring main unit and facilitates the removal of the ring main unit for maintenance and repair. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the limiting mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram showing the distribution of the movable rods of this utility model.

[0020] In the diagram: 1. Protective outer casing; 2. Ring main unit body; 3. Limiting mechanism; 301. Sliding seat; 302. Limiting groove; 303. Limiting block; 304. Positioning rod; 305. Spring; 306. Force-bearing block; 307. Push rod; 308. Abutment block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-3 In this embodiment of the utility model, an inflatable ring main unit includes a protective outer casing 1, with the ring main unit body 2 placed inside the protective outer casing 1. It also includes a limiting mechanism 3 mounted on the protective outer casing 1. The limiting mechanism 3 includes a transmission unit, a limiting unit, and a sliding seat 301. The sliding seat 301 is slidably mounted on the inner side of the protective outer casing 1. The limiting unit provides a limit for the sliding seat 301 after movement. The transmission unit releases the connection between the multiple limiting units and the sliding seat 301.

[0023] The limiting unit includes a limiting groove 302, a limiting block 303, a positioning rod 304, and a spring 305. The limiting groove 302 is formed at the top of the sliding seat 301 and provides space for the docking of the sliding seat 301. The limiting block 303 is vertically slidably installed on the inner wall of the protective outer box 1 and extends to the outside of the protective outer box 1. The limiting block 303 is used to limit the movement of the sliding seat 301. The positioning rod 304 is fixed inside the protective outer box 1 and passes through the limiting block 303. The positioning rod 304 is used to guide the vertical movement of the limiting block 303. The two ends of the spring 305 are respectively engaged with the inner wall of the protective outer box 1 and the top of the limiting block 303. The spring 305 is used to always provide a downward compressive force to the limiting block 303.

[0024] The transmission unit includes a force-bearing block 306, a push rod 307, and a stop block 308. The force-bearing block 306 is fixed to the top of the limiting block 303 and located between the protective outer casing 1 and the ring main unit 2. The force-bearing block 306 is used to receive the squeezing force from the stop block 308. The push rod 307 is axially slidably installed on the inner wall of the protective outer casing 1 and extends to the outside of the protective outer casing 1. The push rod 307 is used to synchronously drive the stop block 308 to move. The stop block 308 is fixed to the top of the push rod 307 and located on one side of the force-bearing block 306. The stop block 308 is used to give the force-bearing block 306 an upward squeezing force.

[0025] In this embodiment: when it is necessary to assemble the protective outer casing 1 and the ring main unit 2, the sliding seat 301 inside the protective outer casing 1 is pulled out, and then the ring main unit 2 is placed on the upper surface of the sliding seat 301. By pushing the ring main unit 2, the sliding seat 301 and the ring main unit 2 can be driven into the interior of the protective outer casing 1, completing the assembly of the protective outer casing 1 and the ring main unit 2. When the sliding seat 301 moves to its maximum distance, the outer wall of the limiting groove 302 at the top of the sliding seat 301 will also contact the inclined surface of the limiting block 303. The limiting block 303 will be squeezed upward by the outer wall of the limiting groove 302 and will move along the outer wall of the positioning rod 304 and be subjected to the squeezing force of the spring 305 until the limiting block 303 and the limiting groove 302 are aligned. With the inner sides aligned, the limiting block 303 will be inserted into the limiting groove 302 under the action of the spring 305, limiting the lateral movement of the sliding seat 301 and preventing the ring main unit 2 from moving. When maintenance of the ring main unit 2 is required, the push rod 307 can be pushed. The axially moving push rod 307 will simultaneously drive the abutment block 308 to move, so that the force block 306 on one side of the abutment block 308 will be subjected to the squeezing force from the abutment block 308, causing the limiting block 303 to move upward until the top plane of the abutment block 308 contacts the inner side of the force block 306, thus positioning the limiting block 303 and the force block 306, thereby releasing the lateral movement limitation of the sliding seat 301, which facilitates the quick transfer of the ring main unit 2 from the protective outer box 1, further improving work efficiency.

[0026] Please refer to this carefully. Figures 1-3 The outer wall of the force-bearing block 306 is generally in the shape of a right-angled trapezoid. The inclined side of the force-bearing block 306 coincides with the position of the horizontal rod of the force-bearing block 306. The outer wall of the force-bearing block 306 is generally in the shape of an "L". Multiple abutment blocks 308 are provided. Multiple abutment blocks 308 are evenly distributed on the top of the push rod 307. The interior of the protective outer box 1 is formed with a sliding groove for the vertical movement of the limiting block 303. The outer wall of the limiting block 303 is generally in the shape of an "L". The end of the limiting block 303 near the limiting groove 302 is in an inclined state. The outer wall of the limiting block 303 matches the inner side of the limiting groove 302.

[0027] In this embodiment: This structure allows multiple abutment blocks 308 distributed at the top to move synchronously when the push rod 307 moves axially. The trapezoidal abutment block 308 will exert a squeezing force on the force-bearing block 306 to move upward through the inclined surface. The top plane of the abutment block 308 will abut against the inner side of the force-bearing block 306, thereby positioning the height of the force-bearing block 306 at this time.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An inflatable ring main unit, comprising a protective outer casing (1), wherein the ring main unit body (2) is placed inside the protective outer casing (1), characterized in that, It also includes a limiting mechanism (3) installed on the protective outer casing (1); the limiting mechanism (3) includes a transmission unit, a limiting unit, and a sliding seat (301); the sliding seat (301) is slidably installed on the inner side of the protective outer casing (1); the limiting unit is used to provide a limit for the sliding seat (301) after it has moved; the transmission unit is used to release the connection between the multiple limiting units and the sliding seat (301).

2. The inflatable ring main unit according to claim 1, characterized in that, The limiting unit includes a limiting groove (302), a limiting block (303), a positioning rod (304), and a spring (305); the limiting groove (302) is opened at the top of the sliding seat (301), and the limiting groove (302) is used to provide space for the docking of the sliding seat (301); the limiting block (303) is vertically slidably installed on the inner wall of the protective outer box (1) and extends to the outside of the protective outer box (1), and the limiting block (303) is used to limit the movement of the sliding seat (301); the positioning rod (304) is fixed inside the protective outer box (1) and passes through the limiting block (303), and the positioning rod (304) is used to provide guidance for the vertical movement of the limiting block (303); the two ends of the spring (305) are respectively engaged with the inner wall of the protective outer box (1) and the top of the limiting block (303), and the spring (305) is used to always give the limiting block (303) a downward squeezing force.

3. The inflatable ring main unit according to claim 2, characterized in that, The transmission unit includes a force-bearing block (306), a push rod (307), and a stop block (308). The force-bearing block (306) is fixed at the top of the limiting block (303) and located between the protective outer casing (1) and the ring main unit (2). The force-bearing block (306) is used to receive the squeezing force from the stop block (308). The push rod (307) is axially slidably installed on the inner wall of the protective outer casing (1) and extends to the outside of the protective outer casing (1). The push rod (307) is used to synchronously drive the stop block (308) to move. The stop block (308) is fixed at the top of the push rod (307) and located on one side of the force-bearing block (306). The stop block (308) is used to give the force-bearing block (306) an upward squeezing force.

4. An inflatable ring main unit according to claim 3, characterized in that, The outer wall of the force-bearing block (306) is generally in the shape of a right trapezoid, and the inclined side of the force-bearing block (306) coincides with the position of the horizontal rod of the force-bearing block (306).

5. An inflatable ring main unit according to claim 3, characterized in that, The outer wall of the force-bearing block (306) is in an "L" shape, and there are multiple abutment blocks (308), which are evenly distributed on the top of the push rod (307).

6. An inflatable ring main unit according to claim 2, characterized in that, The protective outer casing (1) has a groove formed inside for the vertical movement of the limiting block (303), and the outer wall of the limiting block (303) is in an "L" shape.

7. An inflatable ring main unit according to claim 2, characterized in that, The end of the limiting block (303) near the limiting groove (302) is inclined, and the outer wall of the limiting block (303) matches the inner side of the limiting groove (302).

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