Gas-insulated switchgear with durable assembly structure

Abstract

The utility model discloses an inflatable cabinet with a durable assembly structure, which is characterized by comprising a left side plate and a right side plate which are oppositely arranged, buses which are respectively arranged on the left side plate and the right side plate, and bus holes for the buses to be inserted, positioning shafts perpendicular to the horizontal plane and J-shaped fasteners arranged outside the positioning shafts in a sleeving mode are arranged in the hidden grooves, the fasteners can linearly move relative to the positioning shafts in the length direction of the right side plate and can rotate relative to the positioning shafts, and buckling grooves for buckling the fasteners one by one are formed in the two side edges of the left side plate correspondingly; an inserting rod is telescopically connected to the groove bottom, parallel to the right side plate, of the buckling groove, a pushing block for people to apply force is arranged on the peripheral wall of the inserting rod, an inserting hole for the inserting rod to be inserted is formed in the end, capable of moving into the buckling groove, of the fastener, and one end of the fastener is pulled out of the buckling groove and rotated into the close buckling groove, so that the inserting rod can be inserted into the inserting hole; the problem that in the prior art, a connecting structure is prone to being damaged, and disassembly and assembly efficiency is affected is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas-filled cabinet, more particularly to a durable gas-filled cabinet of assembling structure. BACKGROUND

[0002] The gas-filled cabinet is a kind of gas-insulated enclosed switchgear, and is used for power transmission in harsh environment. When the gas-filled cabinet is used, multiple gas-filled cabinets are often spliced, and the splicing mode is to connect the busbars of multiple gas-filled cabinets, so that multiple gas-filled cabinets form a parallel relationship. Because the gas-filled cabinet is filled with high-pressure gas, the gas-filled cabinets spliced together can pop apart, which reduces the electrical connection stability between adjacent two gas-filled cabinets. Therefore, the Chinese patent with publication number CN216929400U discloses a gas-filled cabinet gas chamber and cabinet positioning structure, which adds positioning bent plates on the left and right side plates, and two adjacent gas-filled cabinet gas chambers are fixedly connected together by bolts and nuts to make the two gas-filled cabinet gas chambers stably connected together. Although the problem of popping apart between adjacent gas-filled cabinets is solved, there are still defects. The positioning bent plates are protruded relative to the outer wall of the gas-filled cabinet, and are prone to be knocked or hit by heavy objects during transportation or use, which causes the positioning bent plates to deform, thereby causing the subsequent positioning bent plates to be unable to be fitted together or the two positioning bent plates connected together to be unable to be effectively separated. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a gas-filled cabinet with stable assembling structure and convenient disassembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a durable gas-filled cabinet of assembling structure, which comprises left and right side plates arranged oppositely, busbars arranged on the left and right side plates respectively, and busbar holes for inserting the busbars, wherein two side edges of the right side plate are provided with hidden grooves, the hidden grooves are provided with positioning shafts perpendicular to the horizontal plane and buckles in J shape which are sleeved outside the positioning shafts, the buckles can move linearly along the length direction of the right side plate relative to the positioning shafts and can rotate relative to the positioning shafts, two side edges of the left side plate are provided with buckling grooves for buckling the buckles one by one, the groove bottoms of the buckling grooves are provided with expansion joints, the expansion joints are provided with insertion rods, the insertion rods are provided with push blocks for human force, the end of the buckle that can move into the buckling groove is provided with an insertion hole for inserting the insertion rod, and the insertion rod can be inserted into the insertion hole by pulling out one end of the buckle from the buckling groove and rotating it into the adjacent buckling groove.

[0005] As a further improvement of the utility model, the end of the fastener with the jack hole is provided with an opening and closing joint which is communicated with the inner cavity of the fastener and is perpendicular to the horizontal plane, the width of the inner cavity of the fastener at both ends is respectively greater and smaller than the diameter of the positioning shaft, and the width of the inner cavity gradually changes along the length direction of the fastener, and the end with smaller width of the inner cavity of the fastener is communicated with the opening and closing joint, and the opening and closing joint is enlarged by clamping the end with smaller width of the inner cavity of the fastener with the positioning shaft.

[0006] As a further improvement of the utility model, the side wall of the fastener is provided with a hook hole which is communicated with the inner cavity of the fastener.

[0007] As a further improvement of the utility model, the plug rod and the fastener are elastically connected, the end of the fastener entering the fastener slot is provided with an arc surface which can slide relative to the end of the plug rod, and the end of the plug rod sliding with the arc surface is hemispherical.

[0008] The utility model discloses the beneficial effects that: by pulling out the fastener one end from the fastener slot and rotating to the similar fastener slot, the plug rod can be inserted into the jack hole, so that the two gas cabinets can be connected together, and compared with the prior art, the connecting structure for connecting the two gas cabinets is always hidden in the side plate of the cabinet body, the phenomenon that the connecting structure is impacted by the falling objects of outside or the knock in the carrying can be effectively avoided, the structure stability of the fastener 7 is indirectly ensured, and the fluent operation of multiple disassembly and assembly is beneficial, compared with the bolt connection mode of the prior art, the operation is more convenient, and the time required for disassembly and assembly is saved. ACCURACY OF DRAWINGS

[0009] Figure 1 It is the perspective view of the utility model;

[0010] Figure 2 It is Figure 1 It is the enlarged view of A in the middle;

[0011] Figure 3 It is Figure 1 It is the enlarged view of B in the middle;

[0012] Figure 4 It is the front view of the fastener in the utility model;

[0013] Figure 5 It is the perspective view of the utility model after assembly;

[0014] Figure 6 It is Figure 5 It is the enlarged view of C in the middle;

[0015] Figure 7 It is Figure 6 It is the plane section view of the utility model.

[0016] Fig. 1 is a left side plate; Fig. 2 is a right side plate; Fig. 3 is a busbar; Fig. 4 is a busbar hole; Fig. 5 is a hidden groove; Fig. 6 is a positioning shaft; Fig. 7 is a fastener; Fig. 8 is a fastener groove; Fig. 9 is an insertion rod; Fig. 10 is a push block; Fig. 11 is an insertion hole; Fig. 12 is an opening and closing gap; Fig. 13 is a hook hole; and Fig. 14 is an arc surface. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail below in combination with the drawings and embodiments. Identical parts are denoted by identical reference numerals.

[0018] Referring to Figures 1 to 7 The durable inflatable cabinet of the assembled structure of the embodiment comprises a left side plate 1 and a right side plate 2 arranged oppositely, a busbar 3 and a busbar hole 4 for inserting the busbar 3 arranged on the left side plate 1 and the right side plate 2 respectively, a hidden groove 5 arranged at both side edges of the right side plate 2, a positioning shaft 6 arranged in the hidden groove 5, a fastener 7 arranged in the hidden groove 5, an insertion rod 9 arranged in a telescopic groove arranged on the bottom of the fastener groove 8 parallel to the right side plate 2, and a push block 10 integrally formed on the peripheral wall of the insertion rod 9.

[0019] Based on the prior art, the hidden groove 5 extends to the opening profile on the side surface of the right side plate 2 in a T shape, end grooves for accommodating both ends of the positioning shaft 6 and adjacent to the side surface of the right side plate 2 are arranged on both groove walls of the hidden groove 5 with smaller spacing, the positioning shaft 6 is a cylinder, the fastener 7 is a ring body, the fastener 7 has a hook and an outer profile in a J shape, the inner hole of the fastener 7 is in a strip shape and the inner hole width is greater than or equal to the diameter of the positioning shaft 6, an insertion hole 11 is machined on one end surface of the fastener 7 and communicates with the inner hole of the fastener 7, a fastener groove 8 compatible with the fastener 7 is machined on both side edges of the left side plate 1, a telescopic groove for accommodating the insertion rod 9 is arranged on the groove bottom of the fastener groove 8 parallel to the right side plate 2, and a push block 10 is integrally formed on the peripheral wall of the insertion rod 9.

[0020] In the assembly process, the positioning shaft 6 is first penetrated through the fastener 7, then both ends of the positioning shaft 6 are respectively opposite to the two end grooves and are moved into the corresponding end grooves, the fastener 7 is moved into the hidden groove 5 along with the positioning shaft 6, and finally a cover plate is installed in the wider space of the hidden groove 5 through bolt connection, the cover plate limits the positioning shaft 6 and the fastener 7 in the hidden groove 5; the insertion rod 9 is placed in the telescopic groove, then a cover with a push hole is positioned on the side surface of the left side plate 1 through a bolt, the cover limits the insertion rod 9 in the telescopic groove, the push hole is provided for the push block 10 to pass out, the length of the push hole is greater than the length of the push block 10 and the length direction of the push hole is parallel to the horizontal plane;

[0021] In the initial state, the plug rod 9 is entirely located in the telescopic slot, the push block 10 is in contact with one end of the push hole, the whole of the buckle 7 is located in the hidden slot 5, the end of the buckle 7 with the insertion hole 11 is flush with the side surface of the right side plate 2, and the inner hole of the buckle 7 is in contact with or close to the positioning shaft 6; during the assembly of the two air cabinets, the busbar 3 is inserted into the busbar hole 4, and the right side plate 2 and the left side plate 1 of the two air cabinets are attached to each other, the hidden slot 5 is in communication with the buckle slot 8, then a tool such as a wire is inserted into the insertion hole 11 and hooked around the buckle 7 or directly hooked around the hook of the buckle 7, then the buckle 7 is moved linearly along the width direction of the right side plate 2, the buckle 7 gradually moves out of the hidden slot 5, until the positioning shaft 6 is in contact with the other end of the inner hole of the buckle 7, then the buckle 7 is rotated 90 degrees relative to the positioning shaft 6, the end of the buckle 7 with the hook is inserted into the buckle slot 8, the insertion hole 11 of the buckle 7 is opposite to the plug rod 9, finally the push block 10 is pushed to insert one end of the plug rod 9 into the insertion hole 11, then the two air cabinets are connected in place; if the two air cabinets are to be disassembled, the push block 10 is pushed in the opposite direction to separate the plug rod 9 from the insertion hole 11, then one end of the buckle 7 is pushed into the hidden slot 5 to move the other end of the buckle 7 out of the buckle slot 8, then the part of the buckle 7 moved out of the buckle slot 8 is pulled to reverse 90 degrees, then the buckle 7 is pushed back into the hidden slot 5, and finally the two air cabinets are separated;

[0022] Such design can always hide the connection structure for connecting the two air cabinets inside the side plate of the cabinet body, effectively avoiding the impact of external falling objects or bumps during transportation on the connection structure, indirectly ensuring the structural stability of the buckle 7, and facilitating smooth operation of repeated disassembly and assembly; compared with the screw connection method of the prior art, the operation is more convenient, and the time required for disassembly and assembly is saved.

[0023] As an improved specific embodiment, due to the shaking phenomenon of the air cabinet during transportation, the buckle 7 may be moved out of the hidden slot 5, and the buckle 7 is easily deformed by bumps, in order to solve the above problems, with reference to Figure 3As shown, the end of the fastener 7 with the insertion hole 11 is cut to form an opening and closing gap 12 perpendicular to the horizontal plane, and the inner hole width of the fastener 7 is processed so that the width of the end of the fastener 7 connected to the opening and closing gap 12 is smaller than the diameter of the positioning shaft 6, and the inner hole width of the fastener 7 gradually increases along the length direction of the fastener 7 starting from the opening and closing gap 12, and the width of the other end of the inner hole of the fastener 7 is greater than or equal to the diameter of the positioning shaft 6. During the process of pushing the fastener 7 into the hidden groove 5, the peripheral wall of the positioning shaft 6 is in close contact with and slides along the inner wall of the fastener 7. As the positioning shaft 6 gradually approaches the opening and closing gap 12, the positioning shaft 6 spreads the fastener 7, and the fastener 7 undergoes a small amount of elastic deformation. The opening and closing gap 12 gradually increases. When the fastener 7 is completely moved into the hidden groove 5, the fastener 7 generates a clamping force on the positioning shaft 6 to keep it stationary relative to the hidden groove 5. This design can effectively prevent the fastener 7 from coming out of the hidden groove 5 due to the vibration of the gas cabinet, and ensures the stability of the fastener 7 in the hidden groove 5.

[0024] As an improved specific embodiment, the design in the first embodiment that one end of the fastener 7 is pressed to make the other end of the fastener 7 pop up has the problem of being difficult and not obvious due to the compact structure. To solve the above problem, refer to Figure 6 and Figure 7 As shown, a hook hole 13 is provided on the side wall of the fastener 7, which is in communication with the inner cavity of the fastener 7. When it is necessary to disassemble the two gas cabinets, a hook-shaped iron wire is inserted into the hook hole 13 and hooks the fastener 7, and then the iron wire is pulled to drive the fastener 7 to turn out of the buckle groove 8. This design is more labor-saving and convenient than the design of pressing the fastener 7, and effectively improves the disassembly efficiency of the gas cabinet.

[0025] As an improved specific embodiment, there is a situation that the insertion rod 9 and the insertion hole 11 are forgotten to be inserted with each other during installation, and the vibration generated during use of the gas cabinet causes the insertion rod 9 and the insertion hole 11 to separate. Both of these will cause the connection stability between the two gas cabinets to decrease. To solve the above problem, refer to Figure 2 and Figure 7As shown, a spring is arranged in the telescopic slot for abutting the plug rod 9, the end of the fastener 7 entering the buckle slot 8 is processed into an arc surface 14 capable of sliding relative to the end of the plug rod 9, the end of the plug rod 9 sliding relative to the arc surface 14 is processed into a hemispherical shape, in the process of the fastener 7 being put into the buckle slot 8, the arc surface 14 abuts and slides relative to the end of the plug rod 9, the plug rod 9 is gradually withdrawn into the hidden slot 5 under the push of the arc surface 14, the spring is deformed, until the plug rod 9 is opposite to the plug hole 11, the spring restores the deformation, and the plug rod 9 is inserted into the plug hole 11; in the process of the fastener 7 being put out of the buckle slot 8, one hand pushes the push block 10 to drive the plug rod 9 to move out of the plug hole 11, and the other hand hooks the end of the fastener 7 out of the buckle slot 8 by using the iron wire, and then the push block 10 is pushed, thus the design can effectively simplify the connecting operation compared with the design of manually inserting the plug rod 9 into the plug hole 11, and effectively ensure that the plug rod 9 can be timely inserted into the corresponding plug hole 11, and effectively improve the connecting stability of the fastener 7 and the buckle slot 8.

[0026] The preferred embodiments of the present application have been described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical scheme falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application can also be considered as the protection scope of the present application.

Claims

1. A prefabricated and durable air-entrained tank, comprising left side plate (1) and right side plate (2) arranged oppositely, busbar (3) arranged on left side plate (1) and right side plate (2) respectively, and busbar hole (4) for busbar (3) to plug in, characterized in that: The right side plate (2) is provided with a hidden groove (5) at both sides, the hidden groove (5) is provided with a positioning shaft (6) perpendicular to the horizontal plane and a J-shaped fastener (7) sleeved outside the positioning shaft (6), the fastener (7) can move linearly along the length direction of the right side plate (2) and rotate relative to the positioning shaft (6), the left side plate (1) is provided with a buckle groove (8) for one-to-one buckling of the fastener (7) at both sides, the buckle groove (8) is provided with an expansion rod (9) connected in expansion on the groove bottom parallel to the right side plate (2), the expansion rod (9) is provided with a pushing block (10) for human force on the wall, the end of the fastener (7) that can move into the buckle groove (8) is provided with a plug hole (11) for insertion of the expansion rod (9), by pulling one end of the fastener (7) out of the buckle groove (8) and rotating it into the adjacent buckle groove (8), the expansion rod (9) can be inserted into the plug hole (11).

2. A prefabricated durable gas insulated switchgear according to claim 1, characterized in that: The end of the fastener (7) provided with the plug hole (11) is provided with an opening and closing slit (12) communicated with the inner cavity of the fastener (7) and perpendicular to the horizontal plane, the width of the inner cavity of the fastener (7) at both ends is respectively greater and less than the diameter of the positioning shaft (6), and the width of the inner cavity gradually changes along the length direction of the fastener (7), the end of the inner cavity with smaller width is communicated with the opening and closing slit (12), by clamping the positioning shaft (6) into the end of the inner cavity with smaller width of the fastener (7), the opening and closing slit (12) becomes larger.

3. A prefabricated durable gas insulated switchgear according to claim 1 or 2, characterized in that: The side wall of the fastener (7) is provided with a hook hole (13) communicated with the inner cavity of the fastener (7).

4. A prefabricated durable gas insulated switchgear according to claim 1 or 2, characterized in that: The expansion rod (9) and the buckle groove (8) are elastically connected, the end of the fastener (7) entering the buckle groove (8) is provided with an arc surface (14) capable of sliding relative to the end of the expansion rod (9), the end of the expansion rod (9) sliding with the arc surface (14) is hemispherical.

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