Air tightness detection system for gas-insulated switchgear

Abstract

The utility model belongs to the technical field of inflatable cabinet detection, and particularly relates to an air tightness detection system for an inflatable cabinet, which comprises a detection chamber, a sealing door hinged to the detection chamber, an air exhaust and inflation assembly arranged in the detection chamber, a mounting plate fixed on the detection chamber, a bidirectional motor mounted on the mounting plate, a mounting block fixed on the detection chamber, and a rotating rod fixed on the bidirectional motor. A through groove is formed in the detection chamber, a pull rope is fixed to the sealing door, a groove is formed in the detection chamber, and a rolling rod is rotationally arranged in the groove; the bidirectional motor is started to drive the rotating rod to rotate, so that the pull rope is wound on the outer side of the rotating rod, the sealing door can be driven to turn over upwards along with shortening of the pull rope, the gas-insulated switchgear can slide into the detection chamber more conveniently in the turning-over process of the sealing door, the labor amount of workers is reduced, and follow-up detection of the gas-insulated switchgear is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas cabinet detection, and in particular relates to an air tightness detection system for a gas cabinet. Background Art

[0002] The gas-filled cabinet encloses all high-voltage components such as busbars, circuit breakers, load switches, disconnectors and transformers in a sealed gas chamber filled with SF6 insulating gas. Due to its sealing properties, the built-in high-voltage components are not affected by the external environment, such as condensation, dirt, small animals and chemicals. It is safe, convenient, requires little or even no maintenance, and can be used in places with harsh environments.

[0003] During the production process of the inflatable cabinet, the air tightness of the inflatable cabinet needs to be tested first, so as to ensure the normal use of the subsequent inflatable cabinet; and the existing air tightness detection method is usually carried out inside a detection room. After the inflatable cabinet is moved into the detection room, the air inside the inflatable cabinet is first extracted, and then nitrogen is filled into the inflatable cabinet. During the continuous delivery of nitrogen, the air pressure data inside the detection room is observed to see if it changes, so as to determine whether the inflatable cabinet is leaking. However, in the entire process of transporting the inflatable cabinet, it relies entirely on manual transportation, which consumes a lot of manpower. For this reason, we propose an air tightness detection system for inflatable cabinets to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an air tightness detection system for an inflatable cabinet, so as to solve the problems existing in the background technology.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] An air tightness detection system for an inflatable cabinet, comprising a detection chamber, the front end of the detection chamber is set to be open, a sealing door is hinged at the lower side of the front end of the detection chamber, a pushing component is provided between the rear end of the detection chamber and the sealing door, and an air extraction and inflation component is provided at the right end of the detection chamber;

[0007] The pushing assembly includes a bidirectional motor, a mounting plate is fixed to the middle part of the lower side of the rear end of the detection chamber, the bidirectional motor is installed on the upper end of the mounting plate, a mounting block is symmetrically fixed to the lower side of the rear end of the detection chamber, the output shafts at both ends of the bidirectional motor are fixed with rotating rods, the two rotating rods are respectively rotatably arranged inside the two mounting blocks, through grooves are symmetrically opened on the upper side of the front end of the detection chamber, pull ropes are symmetrically fixed to the rear end of the sealing door and are respectively located inside the two through grooves, the ends of the two pull ropes are respectively wrapped around the outside of the two rotating rods, a groove is opened in the middle part of the lower wall of the detection chamber, and a number of rollers evenly distributed are rotatably arranged inside the groove.

[0008] Furthermore, the vacuum and inflation component includes an air pump, which is installed at the upper end of the detection chamber. The left end of the air pump is connected to a first air pipe, and an inflation head is provided at one end of the first air pipe extending into the interior of the detection chamber. A regulating box is installed at the right end of the detection chamber, and a second air pipe is connected between the right end of the air pump and the regulating box. An adjusting component is provided inside the regulating box, and air guide pipes are provided at both the front and rear ends of the regulating box. A placement plate is fixed to the lower side of the right end of the detection chamber, and a gas storage bottle is installed on the upper end of the placement plate. The two air guide pipes are respectively connected to the two gas storage bottles.

[0009] Furthermore, the adjustment component includes a rotating rod, and cavities are provided on the front and rear sides of the adjustment box. The two air ducts are respectively connected to the two cavities. An installation cavity located between the two cavities is provided inside the adjustment box, and air vents connected to the two cavities are respectively provided on the front and rear inner walls of the installation cavity. The rotating rod is sealingly rotatably arranged inside the installation cavity, and one end of the rotating rod extending out of the adjustment box is sealingly rotatably connected to the second air duct, and an air guide groove is provided inside the rotating rod.

[0010] Furthermore, a rotating handle is fixed on the outer side of one end of the rotating rod extending out of the adjusting box.

[0011] Furthermore, a mitre column plate is fixed to the upper end of the sealing door.

[0012] Furthermore, an N-shaped sealing frame is provided on the front side of the inner wall of the detection chamber, and a sealing strip matching with the N-shaped sealing frame is hinged on the lower side of the rear end of the sealing door.

[0013] Furthermore, a clamping block is provided at the opposite end of the two rotating rods.

[0014] Furthermore, an arc-shaped guide plate is provided on the upper side of the rear end of the detection chamber, and the two pull ropes are both in contact with the upper end of the arc-shaped guide plate.

[0015] The beneficial effects of the utility model are:

[0016] 1) By setting up the Mitsubishi column plate, the inflatable cabinet can be moved to the surface of the sealed door more easily. Driven by the bidirectional motor, the rotating rod reels up the pull rope, so that the pull rope can drive the sealed door to flip upward. By tilting the sealed door when it flips, the inflatable cabinet can more conveniently enter the interior of the inspection room.

[0017] 2) By providing a hinged sealing strip, it can play a certain supporting role when the inflatable cabinet moves to the hinge between the sealing door and the detection chamber, preventing the hinge between the detection chamber and the sealing door from getting stuck in the inflatable cabinet and affecting the movement of the inflatable cabinet.

[0018] 3) After the sealing door abuts against the front end of the detection chamber, the sealing strip will cooperate with the N-shaped sealing frame to seal the gap between the sealing door and the detection chamber, thereby strengthening the overall sealing performance of the detection chamber and preventing gas leakage from affecting the detection results.

[0019] 4) By setting a roller bar, the friction force of the inflatable cabinet after entering the inspection room is greatly reduced, which makes it convenient for the staff to push the inflatable cabinet inside the inspection room. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0021] Figure 1 This is a structural schematic diagram of an air tightness detection system for an inflatable cabinet according to the utility model;

[0022] Figure 2 It is a partial cross-sectional structural schematic diagram of an air tightness detection system for an inflatable cabinet of the utility model;

[0023] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 5 The utility model is a schematic diagram of the expanded structure of an air tightness detection system for an inflatable cabinet.

[0026] The main component symbols are described as follows:

[0027] Detection chamber 100, sealed door 101, bidirectional motor 102, mounting plate 103, mounting block 104, rotating rod 105, through slot 106, pull rope 107, roller 108, air pump 200, first air pipe 201, charging head 202, regulating box 203, second air pipe 204, air guide tube 205, placement plate 206, gas storage bottle 207, rotating rod 300, cavity 301, air vent 302, air guide slot 303, rotating handle 400, Mitsubishi column plate 401, N-shaped sealing frame 402, sealing strip 403, block 404, arc guide plate 405. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiment 1:

[0030] like Figure 1-Figure 5As shown, an air tightness detection system for an inflatable cabinet includes a detection chamber 100, the front end of the detection chamber 100 is set to be open, a sealing door 101 is hinged at the lower side of the front end of the detection chamber 100, a pushing component is provided between the rear end of the detection chamber 100 and the sealing door 101, and an air extraction and inflation component is provided at the right end of the detection chamber 100;

[0031] The pushing assembly includes a bidirectional motor 102, a mounting plate 103 is fixed to the middle of the lower side of the rear end of the detection chamber 100, the bidirectional motor 102 is installed on the upper end of the mounting plate 103, a mounting block 104 is symmetrically fixed to the lower side of the rear end of the detection chamber 100, and the output shafts at both ends of the bidirectional motor 102 are fixed with rotating rods 105, and the two rotating rods 105 are respectively rotatably arranged inside the two mounting blocks 104, through grooves 106 are symmetrically opened on the upper side of the front end of the detection chamber 100, and pull ropes 107 respectively located inside the two through grooves 106 are symmetrically fixed to the rear end of the sealing door 101, and the ends of the two pull ropes 107 are respectively wrapped around the outside of the two rotating rods 105, and a groove is opened in the middle of the lower wall of the detection chamber 100, and a number of rollers 108 evenly distributed are rotatably arranged inside the groove.

[0032] The inspection room 100 cooperates with the sealing door 101 to form a sealed space, which is convenient for the sealing inspection of the inflatable cabinet. The bidirectional motor 102 can provide power, the mounting plate 103 can install the bidirectional motor 102, and the mounting block 104 can not only install the rotating rod 105, but also share the tension generated when the pull rope 107 is pulled. The rotation of the rotating rod 105 can allow the pull rope 107 to be entangled, and the upper end of each roller 108 can reduce the friction between the inflatable cabinet, so that the inflatable cabinet can be more conveniently moved into the inspection room 100.

[0033] When the inflatable cabinet is moved into the inspection room 100: first, the staff puts the inflatable cabinet on the surface of the sealed door 101 and enters the inspection room 100, then starts the bidirectional motor 102, and the output shaft of the bidirectional motor 102 drives the rotating rod 105 to rotate. Since the pull rope 107 is wrapped around the outside of the rotating rod 105, the two pull ropes 107 will be pulled, so that the two pull ropes 107 drive the sealed door 101 to flip upward until the sealed door 101 is tightly abutted against the front end of the inspection room 100. In the process of flipping the sealed door 101, the inflatable cabinet can also be pushed into the inspection room 100 synchronously, and the staff can also receive the inflatable cabinet in the inspection room 100, and then rely on each roller 108 to push the inflatable cabinet more conveniently to the middle of the inspection room 100 and connect it to the exhaust and inflation assembly. Finally, after the staff leaves the inspection room 100, the gas inside the inflatable cabinet can be extracted and filled, which not only reduces the staff's handling, but also reduces the staff's work efficiency.

[0034] In this embodiment, by starting the bidirectional motor 102, the rotating rod 105 is driven to rotate, so that the pull rope 107 is wrapped around the outside of the rotating rod 105. As the pull rope 107 shortens, the sealing door 101 can be driven to flip upward. During the flipping process of the sealing door 101, the inflatable cabinet can be more conveniently slid into the inspection room 100, reducing the workload of the staff and facilitating subsequent inspection of the inflatable cabinet.

[0035] Embodiment 2:

[0036] Based on the first embodiment, other components on the detection chamber 100 are further described. Figure 2-Figure 5 As shown, the vacuum and inflation component includes an air pump 200, which is installed at the upper end of the detection chamber 100. The left end of the air pump 200 is connected to a first air pipe 201, and an inflation head 202 is provided at one end of the first air pipe 201 extending into the interior of the detection chamber 100. A regulating box 203 is installed at the right end of the detection chamber 100, and a second air pipe 204 is connected between the right end of the air pump 200 and the regulating box 203. An adjusting component is provided inside the regulating box 203, and air guide pipes 205 are provided at both the front and rear ends of the regulating box 203. A placement plate 206 is fixed to the lower side of the right end of the detection chamber 100, and a gas storage bottle 207 is installed on the upper end of the placement plate 206. The two air guide pipes 205 are respectively connected to the two gas storage bottles 207.

[0037] The adjustment component includes a rotating rod 300, and cavities 301 are provided on the front and rear sides of the adjustment box 203. The two air guide pipes 205 are respectively connected to the two cavities 301. An installation cavity located between the two cavities 301 is provided inside the adjustment box 203, and air vents 302 connected to the two cavities 301 are respectively provided on the front and rear inner walls of the installation cavity. The rotating rod 300 is sealed and rotatably arranged inside the installation cavity. One end of the rotating rod 300 extending out of the adjustment box 203 is sealed and rotatably connected to the second air supply pipe 204, and an air guide groove 303 is provided inside the rotating rod 300.

[0038] A rotating handle 400 is fixed on the outer side of one end of the rotating rod 300 extending out of the adjusting box 203 .

[0039] A mitre column plate 401 is fixed to the upper end of the sealing door 101 .

[0040] An N-shaped sealing frame 402 is provided on the front side of the inner wall of the detection chamber 100 , and a sealing strip 403 matching with the N-shaped sealing frame 402 is hingedly connected to the lower side of the rear end of the sealing door 101 .

[0041] A clamping block 404 is disposed at the opposite end of the two rotating rods 105 .

[0042] An arc-shaped guide plate 405 is provided on the upper side of the rear end of the detection chamber 100 , and the two pull ropes 107 are both in contact with the upper ends of the arc-shaped guide plate 405 .

[0043] In this embodiment, the air pump 200 is started, and the air pump 200 can transport the air inside the gas cabinet to the inside of the regulating box 203 through the first gas pipe 201 and the second gas pipe 204. By rotating the regulating component, the air can be stored in the gas storage bottle 207 through the air guide pipe 205. Then, by rotating the regulating component, the air pump 200 is adjusted in the reverse direction to fill the nitrogen in the other gas storage bottle 207 into the gas cabinet. In this way, the purpose of filling the gas cabinet with gas can be achieved.

[0044] By twisting the rotating handle 400, the rotating handle 400 can drive the rotating rod 300 to rotate, and at the same time drive the air guide groove 303 to rotate. Through the indicator mark on the outside of the rotating rod 300, the air guide groove 303 can be accurately connected to any vent hole 302, thereby facilitating the passage of gas.

[0045] The Mitsubishi column plate 401 can make it easier for the staff to push the inflatable cabinet onto the surface of the sealing door 101, thereby pushing the inflatable cabinet into the inspection room 100, thereby facilitating subsequent inspections.

[0046] The N-shaped sealing frame 402 and the sealing strip 403 cooperate with each other to further seal the gap between the sealing door 101 and the detection chamber 100, thereby preventing gas leakage from occurring in the detection chamber 100 and affecting the detection effect.

[0047] The block 404 can limit the wound pull rope 107 to prevent the pull rope 107 from escaping from the rotating rod 105. At the same time, when the pull rope 107 moves, the arc guide plate 405 can reduce the friction between the pull rope 107 and the detection chamber 100 to prevent damage to the pull rope 107.

[0048] In the description of the present invention, it should be understood that the terms "front end", "rear end", "left end", "right end", "upper end", "two ends", "end", "one end", "upper side", "lower side", "both sides", "outer side", "middle part", "interior", "lower wall" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In the present utility model, unless otherwise clearly stipulated and limited, the terms "hinge", "fixed", "installed", "rotated", "connected", "sealed rotation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0050] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An air tightness detection system for an inflatable cabinet, comprising a detection chamber (100), characterized in that: The front end of the detection chamber (100) is arranged to be open, a sealing door (101) is hingedly connected to the lower side of the front end of the detection chamber (100), a pushing component is arranged between the rear end of the detection chamber (100) and the sealing door (101), and a suction and inflation component is arranged at the right end of the detection chamber (100); The pushing assembly comprises a bidirectional motor (102), a mounting plate (103) is fixed at the middle of the lower side of the rear end of the detection chamber (100), the bidirectional motor (102) is mounted on the upper end of the mounting plate (103), a mounting block (104) is symmetrically fixed at the lower side of the rear end of the detection chamber (100), a rotating rod (105) is fixed to the output shafts at both ends of the bidirectional motor (102), the two rotating rods (105) are respectively rotatably arranged inside the two mounting blocks (104), a through groove (106) is symmetrically provided at the upper side of the front end of the detection chamber (100), a pull rope (107) is symmetrically fixed at the rear end of the sealing door (101) and is respectively located inside the two through grooves (106), the ends of the two pull ropes (107) are respectively wound around the outside of the two rotating rods (105), a groove is provided at the middle of the lower wall of the detection chamber (100), and a plurality of rollers (108) evenly distributed are rotatably arranged inside the groove.

2. The air tightness detection system for an inflatable cabinet according to claim 1, characterized in that: The air extraction and inflation component comprises an air pump (200), the air pump (200) is installed at the upper end of the detection chamber (100), the left end of the air pump (200) is connected with a first air supply pipe (201), one end of the first air supply pipe (201) extending into the detection chamber (100) is provided with an inflation head (202), a regulating box (203) is installed at the right end of the detection chamber (100), a second air supply pipe (204) is connected between the right end of the air pump (200) and the regulating box (203), an adjusting component is provided inside the regulating box (203), air guide pipes (205) are provided at the front and rear ends of the regulating box (203), a placement plate (206) is fixed on the lower side of the right end of the detection chamber (100), a gas storage bottle (207) is installed on the upper end of the placement plate (206), and the two air guide pipes (205) are respectively connected with the two gas storage bottles (207).

3. The air tightness detection system for an inflatable cabinet according to claim 2, characterized in that: The regulating assembly comprises a rotating rod (300), cavities (301) are provided on both the front and rear sides of the regulating box (203), the two air guide pipes (205) are respectively connected to the two cavities (301), an installation cavity located between the two cavities (301) is provided in the regulating box (203), and air holes (302) connected to the two cavities (301) are respectively provided on the front and rear inner walls of the installation cavity, the rotating rod (300) is sealingly rotatably arranged in the installation cavity, one end of the rotating rod (300) extending out of the regulating box (203) is sealingly rotatably connected to the second air supply pipe (204), and an air guide groove (303) is provided in the rotating rod (300).

4. The air tightness detection system for an inflatable cabinet according to claim 3, characterized in that: A rotating handle (400) is fixed on the outer side of one end of the rotating rod (300) extending out of the regulating box (203).

5. The air tightness detection system for an inflatable cabinet according to claim 1, characterized in that: A triangular column plate (401) is fixed to the upper end of the sealing door (101).

6. The air tightness detection system for an inflatable cabinet according to claim 1, characterized in that: An N-shaped sealing frame (402) is provided on the front side of the inner wall of the detection chamber (100), and a sealing strip (403) matching with the N-shaped sealing frame (402) is hingedly connected to the lower side of the rear end of the sealing door (101).

7. The air tightness detection system for an inflatable cabinet according to claim 1, characterized in that: A clamping block (404) is provided at the opposite end of the two rotating rods (105).

8. The air tightness detection system for an inflatable cabinet according to claim 1, characterized in that: An arc-shaped guide plate (405) is provided on the upper side of the rear end of the detection chamber (100), and the two pull ropes (107) are both in contact with the upper ends of the arc-shaped guide plate (405).

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