Novel ring main unit

Abstract

The utility model provides a novel ring main unit, and belongs to the technical field of ring main units. Comprising a ring main unit body, and a maintenance assembly, a locking assembly and a heat dissipation assembly which are installed on the ring main unit body. The positioning frame is pulled out, a worker can maintain electrical equipment in the positioning frame, the positioning frame is pushed into the ring main unit body after maintenance, the toothed plate is driven to move in the moving process of the positioning frame, the toothed plate is meshed with the gear, so that the gear and the rotating shaft are driven to rotate, the ratchet wheel is driven to rotate through the rotation of the rotating shaft, and the ratchet wheel is driven to rotate. Because the pawl can only perform one-way limiting on the ratchet wheel, the positioning frame can smoothly enter the ring main unit body in the process of pushing the positioning frame into the ring main unit body, the maintenance efficiency of electrical equipment in the ring main unit body can be improved, and meanwhile, the positioning frame can be limited to prevent displacement in the operation process of the equipment, so that the service life of the equipment is prolonged. And the use stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ring main unit technical field, especially a novel ring main unit. BACKGROUND

[0002] Ring main unit is a group of power transmission and distribution electrical equipment (high voltage switch equipment) is installed in metal or nonmetal insulation cabinet or is made into the electrical equipment of assembled interval formula ring net power supply unit.

[0003] The existing ring main unit is installed with electrical equipment, when these electrical equipment appears the fault, needs to carry out the timely maintenance to it, and the space between ring main unit and electrical equipment is relatively narrow, and the staff is very difficult when carrying out the maintenance, therefore the maintenance efficiency of electrical equipment is lower, in order to respond to the above problem and defect, urgently needs a novel ring main unit. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a novel ring main unit to solve the existing ring main unit is installed with electrical equipment, when these electrical equipment appears the fault, needs to carry out the timely maintenance to it, and the space between ring main unit and electrical equipment is relatively narrow, and the staff is very difficult when carrying out the maintenance, therefore the maintenance efficiency of electrical equipment is lower the limited problem of.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] A novel ring main unit, including: ring main unit body, and the maintenance assembly, locking assembly and heat dissipation assembly installed to ring main unit body, the maintenance assembly includes the positioning frame, the locking assembly includes the toothed plate installed to the outer wall of positioning frame, the outer wall of toothed plate is engaged with the gear, the outer wall of gear is fixedly assembled with the rotating shaft, the rotating shaft penetrates ring main unit body, and the end of rotating shaft away from gear is fixedly assembled with the ratchet wheel, the outer wall of ring main unit body is rotatably connected with the rotating rod, the outer wall of rotating rod is fixedly assembled with the pawl, the end of pawl and ratchet wheel abut, the outer wall of ring main unit body is fixedly assembled with the torsion spring, the end of torsion spring away from ring main unit body is fixedly connected with pawl, and rotating rod is in the inside of torsion spring, the end of rotating rod away from ring main unit body is fixedly assembled with the knob.

[0007] Preferably, the bottom of the inner wall of the ring main unit body is fixedly assembled with a guide rail, both sides of the guide rail are fixedly assembled with pulleys, the outer wall of the pulley abuts with the bottom of the positioning frame, the top of the guide rail is provided with a sliding groove, and the bottom of the positioning frame is slidably connected with the sliding groove.

[0008] Preferably, the heat dissipation assembly comprises a fixed pipe in fixed communication with the ring main unit body, the inner wall of the fixed pipe is fixedly provided with copper fin heat sinks, the inner wall of the fixed pipe is fixedly provided with a dust screen, and the copper fin heat sinks are located on one side close to the positioning frame.

[0009] Preferably, the bottom of the positioning frame is provided with a groove, and the inner wall of the groove is rotatably connected with a pull ring.

[0010] Preferably, the outer wall of the positioning frame is fixedly provided with an auxiliary rod, the inner wall of the ring main unit body is fixedly provided with a limiting rod, and the top of the limiting rod abuts against the auxiliary rod.

[0011] Preferably, the outer wall of the ring main unit body is rotatably connected with a sealing door, the outer wall of the sealing door is provided with an observation port, and the inner wall of the observation port is fixedly provided with an observation window.

[0012] Preferably, the number of the heat dissipation assemblies is two, and the two heat dissipation assemblies are symmetrically distributed on the two sides of the ring main unit body.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] 1. In the above-mentioned scheme, the pawl is separated from the ratchet wheel by rotating the knob to drive the rotating rod and the pawl, so that the ratchet wheel is not limited, the positioning frame can be pulled out smoothly, then the knob is loosened, the pawl is reset under the driving of the torsional spring, the electrical equipment in the positioning frame can be maintained by the staff, and after maintenance, the positioning frame is pushed into the ring main unit body, the tooth plate is driven to move in the process of moving the positioning frame, the gear is driven to rotate with the rotating shaft because the tooth plate is engaged with the gear, the ratchet wheel is driven to rotate through the rotation of the rotating shaft, the positioning frame can enter the ring main unit body smoothly in the process of pushing the positioning frame into the ring main unit body because the pawl can only limit the ratchet wheel in one direction, the maintenance efficiency of the electrical equipment in the ring main unit body is improved, and the positioning frame can be limited, displacement of the positioning frame in the process of equipment operation is prevented, and the stability of use is improved.

[0015] 2. In the above-mentioned scheme, the copper fin heat sinks and the dust screen are arranged, the heat in the ring main unit body can be conducted through the copper fin heat sinks, the dust screen can prevent dust from the outside from entering the ring main unit body, and the service life of the electrical equipment in the ring main unit body can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated herein and forming part of the specification illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to practice and use the present disclosure.

[0017] Figure 1This is a schematic diagram of the three-dimensional structure of the new ring main unit;

[0018] Figure 2 This is a first-view cross-sectional three-dimensional structural diagram of the new ring main unit.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the new ring main unit from a second perspective cross-section.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the new ring main unit from a third-view cross-section.

[0021] Figure 5 A magnified three-dimensional structural diagram of the positioning frame from a first-view perspective;

[0022] Figure 6 for Figure 2 Enlarged 3D structural diagram at point A in the middle;

[0023] Figure 7 for Figure 3 Enlarged 3D structural diagram at point B;

[0024] Figure 8 for Figure 4 Enlarged 3D structural diagram at point C.

[0025] Figure Labels

[0026] 1. Ring main unit body; 101. Sealed door; 102. Observation port; 103. Observation window;

[0027] 2. Inspection components; 201. Guide rail; 202. Pulley; 203. Positioning frame; 204. Slide groove; 205. Groove; 206. Pull ring;

[0028] 3. Locking assembly; 301. Toothed plate; 302. Gear; 303. Rotating shaft; 304. Ratchet; 305. Rotating rod; 306. Pawl; 307. Torsion spring; 308. Knob; 309. Auxiliary rod; 310. Limiting rod;

[0029] 4. Heat dissipation components; 401. Fixing tube; 402. Copper fin heat sink; 403. Dust filter.

[0030] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0031] The novel ring main unit provided by the utility model will be described in detail below in combination with the drawings and specific embodiments. Meanwhile, it is explained here that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be adopted by those skilled in the art to implement some known technologies; and the drawings are only used to describe the embodiments more specifically, and are not intended to specifically limit the utility model.

[0032] As shown in Figures 1-4 , Figure 6 and Figure 8 , the embodiment of the utility model provides a novel ring main unit, which comprises a ring main unit body 1, and a maintenance assembly 2, a locking assembly 3 and a heat dissipation assembly 4 installed on the ring main unit body 1; the maintenance assembly 2 comprises a positioning frame 203; the locking assembly 3 comprises a toothed plate 301 installed on the outer wall of the positioning frame 203, the outer wall of the toothed plate 301 is engaged with a gear 302, the outer wall of the gear 302 is fixedly assembled with a rotating shaft 303, the rotating shaft 303 penetrates through the ring main unit body 1, one end of the rotating shaft 303 away from the gear 302 is fixedly assembled with a ratchet wheel 304, a rotating rod 305 is rotatably connected to the outer wall of the ring main unit body 1, the outer wall of the rotating rod 305 is fixedly assembled with a ratchet pawl 306, the end of the ratchet pawl 306 abuts against the ratchet wheel 304, a torsional spring 307 providing elasticity is fixedly assembled to the outer wall of the ring main unit body 1, one end of the torsional spring 307 away from the ring main unit body 1 is fixedly connected with the ratchet pawl 306, and the rotating rod 305 is located inside the torsional spring 307, a knob 308 is fixedly assembled to one end of the rotating rod 305 away from the ring main unit body 1, an auxiliary rod 309 is fixedly assembled to the outer wall of the positioning frame 203, a limiting rod 310 is fixedly assembled to the inner wall of the ring main unit body 1, the top of the limiting rod 310 abuts against the auxiliary rod 309, by setting the auxiliary rod 309 and the limiting rod 310, the positioning frame 203 can be supported and limited when the positioning frame 203 moves, so that the stability of the positioning frame 203 when moving is improved.

[0033] As shown in Figure 3 , Figure 5 and Figure 7 , the bottom of the inner wall of the ring main unit body 1 is fixedly assembled with a guide rail 201, both sides of the guide rail 201 are fixedly assembled with a pulley 202, the outer wall of the pulley 202 abuts against the bottom of the positioning frame 203, the top of the guide rail 201 is provided with a sliding groove 204, and the bottom of the positioning frame 203 is slidingly connected with the sliding groove 204, by setting the guide rail 201, the pulley 202 and the sliding groove 204, the smoothness of the positioning frame 203 when moving is improved when the positioning frame 203 is pulled.

[0034] As shown in Figure 1 , Figure 2 and Figure 3As shown, the heat dissipation assembly 4 comprises a fixed tube 401 in fixed communication with the ring main unit body 1, the inner wall of the fixed tube 401 is fixedly provided with copper fin heat dissipation fins 402, and the inner wall of the fixed tube 401 is fixedly provided with a dust screen 403. The copper fin heat dissipation fins 402 are located on the side close to the positioning frame 203. By arranging the copper fin heat dissipation fins 402 and the dust screen 403, the heat in the ring main unit body 1 can be conducted through the copper fin heat dissipation fins 402, and the dust screen 403 can prevent dust from the outside from entering the ring main unit body 1, thereby prolonging the service life of the electrical equipment in the ring main unit body 1.

[0035] As shown in Figure 5 The bottom of the positioning frame 203 is provided with a groove 205, and the inner wall of the groove 205 is rotatably connected with a pull ring 206. By arranging the groove 205 and the pull ring 206, the positioning frame 203 can be pulled out through the pull ring 206, thereby improving the convenience of pulling the positioning frame 203.

[0036] As shown in Figure 1 and Figure 4 The outer wall of the ring main unit body 1 is rotatably connected with a sealing door 101, the outer wall of the sealing door 101 is provided with an observation port 102, and the inner wall of the observation port 102 is fixedly provided with an observation window 103. By arranging the observation port 102 and the observation window 103, the inside of the ring main unit body 1 can be observed by the workers through the observation window 103.

[0037] As shown in Figure 2 and Figure 3 The number of heat dissipation assemblies 4 is two, and the two heat dissipation assemblies 4 are symmetrically distributed on both sides of the ring main unit body 1. By limiting the number and position of the heat dissipation assemblies 4, the heat dissipation and dust prevention effect of the ring main unit body 1 can be improved.

[0038] The utility model provides a technical scheme, when working, drive the ratch wheel 304 to rotate through the rotation of the rotating shaft 303, because the pawl 306 can only carry out the one -way location to the ratch wheel 304, and then can smoothly enter the loop net cabinet body 1 in the process of pushing the positioning frame 203 to the loop net cabinet body 1, when the positioning frame 203 completely enters the loop net cabinet body 1, the pawl 306 and the ratch wheel 304 resist and carry out the location to the rotation of the gear 302, finally realize the location to the positioning frame 203, prevent its positioning frame 203 and electrical equipment to move outward when using, guarantee its stability of use,

[0039] Through setting up copper fin heat dissipation sheet 402 and dust screen 403, copper fin heat dissipation sheet 402 is conducive to the heat in the loop net cabinet body 1 is conducted, and dust screen 403 can prevent the dust of outside from entering the loop net cabinet body 1, and then can improve the service life of electrical equipment in the loop net cabinet body 1.

[0040] The above only is the preferred implementation of the utility model, it should be pointed out, for the ordinary skill of the prior art of this technical field, on the premise of not departing from the principle of the utility model, still can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection range of the utility model.

Claims

1. A new type of ring main unit, characterized in that, The utility model relates to a kind of ring main unit, including: Ring main unit body (1), and maintenance assembly (2) installed in ring main unit body (1), locking assembly (3) and heat dissipation assembly (4); The maintenance assembly (2) includes a positioning frame (203); The locking assembly (3) includes a gear plate (301) installed on the outer wall of the positioning frame (203), the outer wall of the gear plate (301) is engaged with a gear (302), the outer wall of the gear (302) is fixedly fitted with a rotating shaft (303), the rotating shaft (303) penetrates the ring main unit body (1), and one end of the rotating shaft (303) away from the gear (302) is fixedly fitted with a ratchet wheel (304), the outer wall of the ring main unit body (1) is rotatably connected with a rotating rod (305), the outer wall of the rotating rod (305) is fixedly fitted with a pawl (306), the end of the pawl (306) is in abutment with the ratchet wheel (304), the outer wall of the ring main unit body (1) is fixedly fitted with a torsion spring (307), one end of the torsion spring (307) away from the ring main unit body (1) is fixedly connected with the pawl (306), and the rotating rod (305) is located in the interior of the torsion spring (307), one end of the rotating rod (305) away from the ring main unit body (1) is fixedly fitted with a knob (308).

2. The new type ring main unit according to claim 1, characterized in that, The bottom of the inner wall of the ring main unit body (1) is fixedly fitted with a guide rail (201), both sides of the guide rail (201) are fixedly fitted with a pulley (202), the outer wall of the pulley (202) is in abutment with the bottom of the positioning frame (203), the top of the guide rail (201) is provided with a sliding groove (204), and the bottom of the positioning frame (203) is slidably connected with the sliding groove (204).

3. The novel ring main unit according to claim 1, characterized in that, The heat dissipation assembly (4) includes a fixed tube (401) fixedly communicated with the ring main unit body (1), the inner wall of the fixed tube (401) is fixedly fitted with a copper fin heat sink (402), the inner wall of the fixed tube (401) is fixedly fitted with a dust screen (403), and the copper fin heat sink (402) is located on the side close to the positioning frame (203).

4. The novel ring main unit according to claim 1, characterized in that, The bottom of the positioning frame (203) is provided with a groove (205), and the inner wall of the groove (205) is rotatably connected with a pull ring (206).

5. The novel ring main unit according to claim 1, characterized in that, The outer wall of the positioning frame (203) is fixedly fitted with an auxiliary rod (309), the inner wall of the ring main unit body (1) is fixedly fitted with a limiting rod (310), and the top of the limiting rod (310) is in abutment with the auxiliary rod (309).

6. The novel ring main unit according to claim 1, characterized in that, The outer wall of the ring main unit body (1) is rotatably connected with a sealing door (101), the outer wall of the sealing door (101) is provided with a viewing port (102), and the inner wall of the viewing port (102) is fixedly fitted with a viewing window (103).

7. The novel ring main unit according to claim 3, characterized in that, The number of the heat dissipation assembly (4) is two groups, and the two groups of heat dissipation assemblies (4) are symmetrically distributed on both sides of the ring main unit body (1).

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