Box-type substation with protection structure

Abstract

The utility model relates to the technical field of box-type substations, in particular to a box-type substation with a protection structure. Comprising a cabinet body and a cabinet door, a wire inlet is formed in the cabinet body, a wire clamping shaft is detachably connected in the wire inlet, the wire clamping shaft is formed by splicing and combining a first half shaft and a second half shaft, wire clamping sliding grooves are formed in the first half shaft and the second half shaft, and a first clamping block and a second clamping block are slidably connected in the wire clamping sliding grooves respectively; a semicircular first clamping groove and a semicircular second clamping groove are formed in the sides, close to each other, of the first clamping block and the second clamping block respectively, a plurality of single sealing strips are fixedly connected into the first clamping groove, and a plurality of double sealing strips are fixedly connected into the second clamping groove; the problems that water leaks at the wire inlet and cables are inconvenient to move due to the fact that the wire inlet protection structure is easy to damage are effectively solved; according to the utility model, the sealing effect at the wire inlet can be greatly improved, and the length of a cable at the wire inlet can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type transformer substations, in particular to a box-type transformer substation with a protective structure. Background Art

[0002] A box-type substation, also known as a prefabricated substation or prefabricated substation, is a factory-prefabricated power distribution system that integrates high-voltage switchgear, distribution transformers, and low-voltage distribution equipment. It organically combines the functions of transformer step-down and low-voltage power distribution within a fully enclosed steel structure that is moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, and heat-insulated. It is particularly suitable for urban power grid construction and renovation, as well as for mines, factories, enterprises, oil and gas fields, wind power stations, and other applications. The emergence of box-type substations has replaced the existing civil power distribution rooms and substations, becoming a new type of complete power transformation and distribution system and has been widely used worldwide.

[0003] Existing box-type substations often use sealing rubber rings or sealing putty for waterproofing the line entrances. These rubber rings, exposed to the outdoors for long periods of time, are susceptible to temperature fluctuations, UV radiation, chemical corrosion, and other factors. For example, in the high temperatures of summer, the rubber rings may soften and expand, while in the cold of winter, they may harden and contract. This repeated deformation damages their internal structure, leading to a gradual decline in sealing performance. While the sealing putty has a certain degree of plasticity and initial sealing ability, it is prone to cracking and falling off over time due to rain, dust, and aging, increasing the risk of water ingress.

[0004] At the same time, after waterproofing the cable inlet of the box-type substation, it is inconvenient to move the cables. For example, due to various reasons (such as replacing equipment, adjusting lines, etc.), the cables need to be adjusted. At this time, if the cables are fixed too firmly and it is inconvenient to adjust the length, it will bring great difficulties to the adjustment work.

[0005] Therefore, the utility model provides a box-type substation with a protective structure to solve the above problems. Utility Model Content

[0006] To this end, the technical problem to be solved by the present invention is to provide a box-type substation with a protective structure, which effectively solves the problem that the protective structure of the line inlet is easily damaged, resulting in water leakage at the line inlet, and at the same time, the line inlet of the box-type substation is inconvenient to move the cables after waterproofing treatment.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A box-type substation with a protective structure comprises a cabinet body with an opening on one side and a cabinet door hinged on the side of the cabinet body opening, a wire inlet is provided inside the cabinet body, a wire clamping shaft is detachably connected to the wire inlet, the wire clamping shaft is composed of a first half-axis and a second half-axis spliced ​​together, a wire clamping groove is provided inside the first half-axis and the second half-axis, the cross-section of the wire clamping groove is set to a right-angle trapezoid, a first clamping block and a second clamping block are respectively slidably connected inside the wire clamping groove, the first clamping block and the second clamping block are set to an inclined surface on one side close to the wire clamping groove, the A semicircular first clamping groove and a second clamping groove are respectively provided on the side close to the first clamping block and the second clamping block, a plurality of single sealing strips arranged at intervals are fixedly connected inside the first clamping groove, a plurality of double sealing strips matching the single sealing strips are fixedly connected inside the second clamping groove, a calibration alignment structure is provided between the first half-shaft and the second half-shaft, a first tension spring is fixedly connected between the first clamping block and the first half-shaft, a second tension spring is fixedly connected between the second clamping block and the second half-shaft, and the first half-shaft and the second half-shaft are connected by a fixed structure.

[0009] Preferably, triangular sealing blocks are fixedly connected to both ends of the single sealing strip.

[0010] Preferably, a sealing gasket is fixedly connected to the adjacent sides of the first clamping block and the second clamping block.

[0011] Preferably, the calibration and alignment structure includes a plurality of half-shaft limiting pins fixedly connected to the first half-shaft, and a plurality of half-shaft limiting grooves matching with the half-shaft limiting pins are opened inside the second half-shaft.

[0012] Preferably, a plurality of clamping block positioning pins are fixedly connected to the first clamping block, and a plurality of clamping block positioning grooves matching with the clamping block positioning pins are formed on the second clamping block.

[0013] Preferably, one end of a rope is fixedly connected to each of the first clamping block and the second clamping block, and the other end of the rope is fixedly connected to a pulling ring.

[0014] Preferably, the fixed structural connection includes a nut threadedly connected to the top end of the wire clamping shaft.

[0015] Preferably, the nut is provided with a plurality of evenly arranged grooves.

[0016] Preferably, the lower ends of the first half-shaft and the second half-shaft are fixedly connected to the first fixed block and the second fixed block respectively, the first fixed block is fixedly connected to two symmetrically arranged hooks, the second fixed block is slidably connected inside with two clamping shafts that cooperate with the hooks, the side of the clamping shaft away from the hook is rotatably connected to a sliding frame, and a locking spring is installed between the sliding frame and the second fixed block.

[0017] The technical solution of the utility model has achieved the following beneficial technical effects:

[0018] By adding a cabinet body, a cabinet door, a wire inlet, a wire clamping shaft, a first half-shaft, a second half-shaft, a wire clamping slide groove, a first clamping block, a second clamping block, a first clamping slot, a second clamping slot, a single sealing strip, a double sealing strip, a first tension spring and a second tension spring, the problem that the existing box-type substation wire inlet protective structure is easily damaged and causes water leakage at the wire inlet, and the problem that the wire inlet of the box-type substation is inconvenient to move the cable after waterproofing is performed is effectively solved; the utility model can greatly improve the sealing effect of the wire inlet, and at the same time facilitates the adjustment of the length of the cable at the wire inlet, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the cabinet of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation position of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the line inlet of the utility model;

[0022] Figure 4 This is a schematic diagram of the wire spool of the utility model;

[0023] Figure 5 This is a schematic diagram of the explosion of the wire spool of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the first half shaft of the utility model;

[0025] Figure 7 This is a schematic diagram of the cooperation between the first clamping block and the second clamping block of the utility model;

[0026] Figure 8 For this utility model Figure 7 A partial enlarged schematic diagram in the middle;

[0027] Figure 9 This is a schematic diagram of the installation position of the hook of the utility model;

[0028] Figure 10 For this utility model Figure 9 A partial enlarged schematic diagram of point B in the middle.

[0029] The reference numerals in the figures are as follows:

[0030] 1. Cabinet body; 2. Cabinet door; 3. Wire inlet; 4. Wire clamping shaft; 4-1. First half-shaft; 4-2. Second half-shaft; 5. Wire clamping groove; 6. First clamping block; 7. Second clamping block; 8. First clamping groove; 9. Second clamping groove; 10. Single sealing strip; 11. Double sealing strip; 12. First tension spring; 13. Second tension spring; 14. Sealing block; 15. Sealing gasket; 16. Half-shaft limiting pin; 17. Half-shaft limiting groove; 18. Block positioning pin; 19. Block positioning groove; 20. Rope; 21. Pull ring; 22. Nut; 23. First fixing block; 24. Second fixing block; 27. Hook; 28. Clamping shaft; 29. ​​Sliding frame; 30. Locking spring. DETAILED DESCRIPTION

[0031] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figures 1 to 10 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the accompanying drawings.

[0032] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] Various exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] Example 1:

[0035] A box-type substation with a protective structure comprises a cabinet body 1 with an opening on one side and a cabinet door 2 hinged on the side of the opening of the cabinet body 1, a wire inlet 3 is provided inside the cabinet body 1, a wire inlet 3 is detachably connected to the wire inlet 3 and a wire clamping shaft 4 is detachably connected to the wire inlet 3, the wire clamping shaft 4 is composed of a first semi-axis 4-1 and a second semi-axis 4-2 spliced ​​together, a wire clamping groove 5 is provided inside the first semi-axis 4-1 and the second semi-axis 4-2, the wire clamping groove 5 has a cross-section arranged in a right-angle trapezoid, the wire clamping groove 5 is wide at the top and narrow at the bottom, a first clamping block 6 and a second clamping block 7 are respectively slidably connected to the wire clamping groove 5, the first clamping block 6 and the second clamping block 7 are close to the wire clamping groove 5 on one side and a semicircular first clamping groove 8 and a second clamping groove 7 are respectively provided on the side close to the first clamping block 6 and the second clamping block 7 Groove 9, the first card slot 8 is fixedly connected with a plurality of single sealing strips 10 arranged at intervals, and the second card slot 9 is fixedly connected with a plurality of double sealing strips 11 that match the single sealing strip 10. The double sealing strip 11 is composed of two separate sealing strips. When in use, after the first clamping block 6 and the second clamping block 7 are fitted together, the two ends of the single sealing strip 10 are inserted between the double sealing strips 11 to achieve a sealing operation; a calibration alignment structure is provided between the first half-shaft 4-1 and the second half-shaft 4-2, a first tension spring 12 is fixedly connected between the first clamping block 6 and the first half-shaft 4-1, a second tension spring 13 is fixedly connected between the second clamping block 7 and the second half-shaft 4-2, and the first half-shaft 4-1 and the second half-shaft 4-2 are connected by a fixed structure.

[0036] When in use, the first half-shaft 4-1 and the second half-shaft 4-2 are separated, and the cable is fixed between the first clamping groove 8 and the second clamping groove 9. The inclined surfaces of the first clamping block 6 and the second clamping block 7 are both in contact with the inclined surfaces of the wire clamping groove 5. In the initial state, under the action of the first tension spring 12 and the second tension spring 13, the first clamping block 6 and the second clamping block 7 are pulled down to the limit position. When the first clamping block 6 and the second clamping block 7 are at the lower end, the first clamping block 6 and the second clamping block 7 are pushed towards each other under the guidance of the inclined surface of the wire clamping groove 5, thereby pressing the cable between the first clamping groove 8 and the second clamping groove 9. The cable is compressed by the single sealing strip 10 and the double sealing strip 11 to achieve a sealing operation, and the cable cannot be pulled downward.

[0037] When the cable length needs to be adjusted, the cable is pulled upward, and under the action of friction, the first clamping block 6 and the second clamping block 7 are driven to slide upward, so that the first clamping block 6 and the second clamping block 7 slide upward inside the wire clamping slot 5. The space at the upper end of the wire clamping slot 5 is larger, so when the cable is pulled upward, the first clamping block 6 and the second clamping block 7 can be pushed away from each other, thereby reducing the friction force of the single sealing strip 10 and the double sealing strip 11 on the cable, and the cable can be pulled upward.

[0038] Triangular sealing blocks 14 are fixedly connected to both ends of the single sealing strip 10 . When in use, the sealing blocks 14 are inserted between the double sealing strips 11 , thereby further achieving sealing between the single sealing strip 10 and the double sealing strips 11 .

[0039] A sealing gasket 15 is fixedly connected to the side where the first clamping block 6 and the second clamping block 7 are close to each other. When the first clamping block 6 and the second clamping block 7 slide toward each other, the sealing gasket 15 fits together, thereby sealing the first clamping block 6 and the second clamping block 7, preventing water from entering the interior of the cabinet 1 through the gap between the first clamping block 6 and the second clamping block 7.

[0040] The calibration alignment structure includes a plurality of half-shaft limit pins 16 fixedly connected to the first half-shaft 4-1, and a plurality of half-shaft limit grooves 17 that cooperate with the half-shaft limit pins 16 are opened inside the second half-shaft 4-2. When in use, the half-shaft limit pins 16 are inserted into the half-shaft limit grooves 17 for easy positioning.

[0041] A plurality of block positioning pins 18 are fixedly connected to the first clamping block 6, and a plurality of block positioning grooves 19 that cooperate with the block positioning pins 18 are provided on the second clamping block 7. When in use, the block positioning pins 18 are inserted into the block positioning grooves 19, so that the first clamping block 6 and the second clamping block 7 slide synchronously.

[0042] One end of the rope 20 is fixedly connected to the first clamping block 6 and the second clamping block 7, and the other end of the rope 20 is fixedly connected to the pulling ring 21. Holes are provided inside the first clamping block 6 and the second clamping block 7, and the rope 20 passes through the holes. When in use, the pulling ring 21 is lifted upward, and the first clamping block 6 and the second clamping block 7 are driven to slide upward synchronously through the rope 20. At this time, the cable can be pulled downward, so that the cable can be freely adjusted up and down.

[0043] The fixed structural connection includes a nut 22 threadedly connected to the top of the clamping shaft 4. When in use, the first half shaft 4-1 and the second half shaft 4-2 are fixed by the nut 22.

[0044] The nut 22 is provided with a plurality of evenly spaced grooves, which facilitate the rotation of the nut 22 .

[0045] The lower ends of the first semi-axle 4-1 and the second semi-axle 4-2 are fixedly connected to the first fixed block 23 and the second fixed block 24 respectively. The first fixed block 23 is fixedly connected to two symmetrically arranged hooks 27. The second fixed block 24 is slidably connected to two card shafts 28 that cooperate with the hooks 27. The card shaft 28 is rotatably connected to the side away from the hook 27. A sliding frame 29 is installed between the sliding frame 29 and the second fixed block 24. In the initial state, under the action of the locking spring 30, the card shaft 28 is pushed in the direction close to the hook 27, and the hook 27 is close to the card shaft. One end of 28 is set to a right triangle. When the hook 27 is pushed in the direction close to the card shaft 28, the inclined surface of the hook 27 pushes the card shaft 28 to slide in the direction away from the hook 27 until the first half shaft 4-1 and the second half shaft 4-2 are fitted together. The straight edge surface of the hook 27 and the card shaft 28 are fitted together, so that the hook 27 clamps the card shaft 28 and fixes the first half shaft 4-1 and the second half shaft 4-2. After use, pull the sliding frame 29 in the direction away from the hook 27 to separate the card shaft 28 and the hook 27, thereby separating the first half shaft 4-1 and the second half shaft 4-2.

[0046] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the claims of this patent application.

Claims

1. A box-type substation with a protective structure, comprising a cabinet (1) with an opening on one side and a cabinet door (2) hinged on the opening side of the cabinet (1), characterized in that: The cabinet (1) is provided with a wire inlet (3) inside, and a wire clamping shaft (4) is detachably connected inside the wire inlet (3), and the wire clamping shaft (4) is composed of a first half-shaft (4-1) and a second half-shaft (4-2) spliced ​​together, and a wire clamping groove (5) is provided inside each of the first half-shaft (4-1) and the second half-shaft (4-2), and the cross section of the wire clamping groove (5) is set as a right-angle trapezoid, and the wire clamping groove (5) is slidably connected with a first clamping block (6) and a second clamping block (7), respectively, and the side of the first clamping block (6) and the second clamping block (7) close to the wire clamping groove (5) is set as an inclined surface, and the side of the first clamping block (6) and the second clamping block (7) close to each other is respectively provided with a clamping groove (5). There are a first semicircular card slot (8) and a second card slot (9), the first card slot (8) is fixedly connected to a plurality of single sealing strips (10) arranged at intervals, the second card slot (9) is fixedly connected to a plurality of double sealing strips (11) matched with the single sealing strips (10), a calibration alignment structure is provided between the first semi-shaft (4-1) and the second semi-shaft (4-2), a first tension spring (12) is fixedly connected between the first clamping block (6) and the first semi-shaft (4-1), a second tension spring (13) is fixedly connected between the second clamping block (7) and the second semi-shaft (4-2), and the first semi-shaft (4-1) and the second semi-shaft (4-2) are connected via a fixed structure.

2. A box-type substation with a protective structure according to claim 1, characterized in that: Both ends of the single sealing strip (10) are fixedly connected with triangular sealing blocks (14).

3. The box-type substation with a protective structure according to claim 1, characterized in that: A sealing gasket (15) is fixedly connected to the adjacent sides of the first clamping block (6) and the second clamping block (7).

4. The box-type substation with a protective structure according to claim 1, characterized in that: The calibration alignment structure comprises a plurality of half-shaft limiting pins (16) fixedly connected to the first half-shaft (4-1), and a plurality of half-shaft limiting grooves (17) matching the half-shaft limiting pins (16) are provided inside the second half-shaft (4-2).

5. The box-type substation with a protective structure according to claim 1, characterized in that: The first clamping block (6) is fixedly connected with a plurality of clamping block positioning pins (18), and the second clamping block (7) is provided with a plurality of clamping block positioning grooves (19) that match the clamping block positioning pins (18).

6. The box-type substation with a protective structure according to claim 5, characterized in that: One end of a rope (20) is fixedly connected to each of the first clamping block (6) and the second clamping block (7), and the other end of the rope (20) is fixedly connected to a pulling ring (21).

7. The box-type substation with a protective structure according to claim 1, characterized in that: The fixed structural connection comprises a nut (22) threadedly connected to the top end of the clamping shaft (4).

8. The box-type substation with a protective structure according to claim 7, characterized in that: The nut (22) is provided with a plurality of evenly arranged grooves.

9. The box-type substation with a protective structure according to claim 1, characterized in that: The lower ends of the first half-shaft (4-1) and the second half-shaft (4-2) are fixedly connected to a first fixed block (23) and a second fixed block (24), respectively; the first fixed block (23) is fixedly connected to two symmetrically arranged hooks (27); the second fixed block (24) is internally slidably connected to two clamping shafts (28) that match the clamping hooks (27); a side of the clamping shaft (28) away from the clamping hooks (27) is rotatably connected to a sliding frame (29); a locking spring (30) is installed between the sliding frame (29) and the second fixed block (24).

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