Cable through-wall sealing device for electric power cabinet body

Abstract

The utility model discloses a cable through-wall sealing device for an electric power cabinet, and relates to the technical field of cable through-wall of electric power cabinets. The gas storage device comprises a mounting frame, a U-shaped sealing shell is fixed to the inner wall of the mounting frame, a closed cavity is formed between the sealing shell and the inner wall of one side of the mounting frame and used for storing gas, and a plurality of through gas holes are formed in one side of the sealing shell and communicated with the cavity in the mounting frame; a plurality of layers of wire pressing mechanisms are arranged in the mounting frame, a middle plate is placed between the wire pressing mechanisms on the upper layer and the lower layer, and the surface of the middle plate is provided with through communicating holes for ventilation. According to the utility model, after sealing is completed, whether air leakage exists or not can be checked through the pressure gauge, so that a worker can conveniently determine whether rectification or not, when water exists and air leakage exists, air can be inflated through the air inflation pipe, and the air can be discharged through the leakage port, so that water is squeezed out, water is prevented from entering, and meanwhile, the line pressing mechanism can be pressed; the sealing effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power cabinet cable installation, in particular to a cable wall penetration sealing device for a power cabinet. Background Art

[0002] Power cabinet cable wall installation is a key link in the power distribution system. This installation method is mainly used to connect cables between power cabinets and external equipment or between areas. It is used to ensure the sealing, protection and safety of cables when passing through walls. It can not only effectively protect the cables but also prevent water from entering, ensuring the stability and safety of power transmission.

[0003] Most existing wall penetration devices are used to fix the cables directly, but cannot be tested for sealing. After installation, it is unknown whether there is leakage. Therefore, a cable wall penetration sealing device for a power cabinet is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a cable wall sealing device for an electric cabinet. After the sealing is completed, a pressure gauge can be used to check whether there is an air leak, which is convenient for the staff to determine whether to make corrections. When there is water and air leakage, air can be inflated into the interior through the inflation tube, and the gas can be discharged through the leakage port, thereby squeezing out the water to prevent water ingress. At the same time, the wire pressing mechanism can be pressed to improve the sealing effect, solving the existing technical problems.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] A cable wall sealing device for a power cabinet comprises: a mounting frame, a U-shaped sealing shell fixed to the inner wall of the mounting frame, a closed cavity for storing air formed between the sealing shell and the inner wall of one side of the mounting frame, and a plurality of penetrating air holes formed on one side of the sealing shell to communicate with the cavity in the mounting frame;

[0007] The installation frame is provided with a multi-layer wire pressing mechanism, and an intermediate plate is placed between the upper and lower wire pressing mechanisms. The surface of the intermediate plate is provided with a through-hole for ventilation. The setting of inflating air into the wire pressing mechanism makes it possible to detect whether there is leakage after the sealing is completed, which is convenient for the staff to determine whether to make corrections. When there is water and leakage, air can be inflated into the interior through the inflation tube, and the gas can be discharged through the leakage port, thereby squeezing out the water and preventing water ingress.

[0008] The wire pressing mechanism includes two pressing blocks arranged above and below, each of which has a gap in the middle for air to enter, and a semicircular mounting opening on the opposite side of the pressing block, in which a wire pressing piece is provided for sealing and pressing the cable;

[0009] The driving mechanism is arranged on the top inner wall of the installation frame and is used to squeeze the pressing block to form a seal for the cable.

[0010] As a further solution of the present invention, the wire pressing piece is composed of multiple layers of circular sealing sleeves bonded together, the sealing sleeves are bonded and fixed to the mounting opening in the pressing block, and the sealing sleeves can be peeled off in a single layer to match the cable.

[0011] As a further solution of the present invention, the driving mechanism includes an upper pressure plate and two pairs of fixed blocks, the upper pressure plate is located at the top of the wire pressing mechanism, the two pairs of fixed blocks are respectively fixed on the top inner wall of the mounting frame and the surface of the upper pressure plate, and also includes two driving blocks, the driving blocks are respectively located on the side away from each other of the two pairs of fixed blocks, and a second inclined surface is provided at the corner on the opposite side of the driving block for inserting between two adjacent fixed blocks, and a bidirectional screw rod is threadedly connected between the two driving blocks.

[0012] As a further solution of the present invention, seals are provided on both sides of the driving mechanism, and the seals include a limit plate and a sealing plate fixed at one end of the upper pressure plate. The sealing plate is provided with a first inclined surface at the corner on one side close to the driving block, and the sealing plate is fixed to the adjacent driving block by bolts.

[0013] As a further solution of the present invention, baffles are fixedly connected to both ends of the middle plate.

[0014] As a further solution of the present invention, a pressure gauge is threadedly mounted on one side of the sealing shell, an inflation tube is fixedly connected to one side of the sealing shell, and a valve is provided at one end of the inflation tube.

[0015] As a further solution of the present invention, both sides of the installation frame are fixedly connected to limit frames.

[0016] In this application, the installation frame is fixed in the through-hole opened in the wall, and then the wires are threaded. When threading, the two pressing blocks are separated, and then the sealing sleeve is peeled off according to the diameter of the cable until the cable can be wrapped. The two pressing blocks are put together and then placed in the installation frame. After one side is placed, the middle plate is placed on its top and stacked upwards. The upper pressure plate is placed on the top layer. Then the two drive blocks are placed on both sides of the two pairs of fixed blocks and connected through a bidirectional screw rod. The bidirectional screw rod is rotated to make the two drive blocks close to each other, and then the upper pressure plate is squeezed downward. The pressing block is made of EPDM rubber material, so that the wire pressing mechanism is compacted to achieve sealing. Finally, the sealing plate is locked above the upper pressure plate to complete the top sealing. After completion, the sealing shell is inflated through the inflation tube, and the gas enters between the wire pressing mechanisms through the air holes. After the air intake stops, the pressure gauge can be used to check whether there is a leak, which is convenient for the staff to determine whether to make corrections. When there is water and leakage, the internal air can also be inflated through the inflation tube, and the gas can be discharged through the leakage port, thereby squeezing out the water to prevent water ingress.

[0017] The embodiments of the present invention have the following beneficial effects:

[0018] In the present invention, by inflating the wire pressing mechanism, after the sealing is completed, it is possible to check whether there is leakage through the pressure gauge, which is convenient for the staff to determine whether to make corrections. When there is water and leakage, air can be inflated into the interior through the inflation tube, and the gas can be discharged through the leakage port, thereby squeezing out the water and preventing water from entering.

[0019] In the present invention, the drive mechanism is provided so that after the cable is installed, the wire pressing mechanism can be pressed, thereby completing the sealing of the cable and improving the sealing effect;

[0020] In the utility model, after the sealing is completed, the pressure gauge can be used to check whether there is any air leakage, which is convenient for the staff to determine whether to make corrections. When there is water and air leakage, air can be inflated into the interior through the inflation tube, and the gas can be discharged through the leakage port, thereby squeezing out the water to prevent water from entering. At the same time, the wire pressing mechanism can be pressed to improve the sealing effect.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0024] Figure 2 This is a side cross-sectional structural diagram of an embodiment of the present utility model;

[0025] Figure 3 This is a schematic cross-sectional view of a sealing shell according to an embodiment of the present invention;

[0026] Figure 4 This is a structural schematic diagram of a wire pressing mechanism according to an embodiment of the present invention.

[0027] In the figure: 1. Mounting frame; 2. Limiting frame; 3. Pressure gauge; 4. Inflating tube; 5. Wire pressing mechanism; 6. Sealing shell; 7. Air hole; 8. Middle plate; 9. Baffle; 10. Connecting hole; 11. Upper pressure plate; 12. Fixed block; 13. Driving block; 14. Bidirectional screw; 15. Sealing plate; 16. Limiting plate; 17. First inclined surface; 18. Pressing block; 19. Gap; 20. Sealing sleeve. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0030] In one embodiment: See Figures 1-4 As shown, in this embodiment, a cable wall sealing device is provided, comprising: an installation frame 1, a U-shaped sealing shell 6 is fixed to the inner wall of the installation frame 1, the sealing shell 6 is arranged on three sides to form a U-shape, and a closed cavity is formed between the sealing shell 6 and the inner wall of one side of the installation frame 1 for storing air. A plurality of penetrating air holes 7 are opened on one side of the sealing shell 6 to communicate with the cavity in the installation frame 1;

[0031] A multi-layer wire pressing mechanism 5 is provided in the mounting frame 1, and an intermediate plate 8 is placed between the upper and lower wire pressing mechanisms 5. The surface of the intermediate plate 8 is provided with a through-hole 10 for ventilation;

[0032] The wire pressing mechanism 5 includes two pressing blocks 18 arranged above and below. A gap 19 is provided in the middle of each pressing block 18 for air to enter. By inflating the wire pressing mechanism 5, it is possible to check whether there is leakage after the sealing is completed, which is convenient for the staff to determine whether to make corrections. When there is water and leakage, the internal part can be inflated, and the gas can be discharged through the leakage port, thereby squeezing out the water and preventing water from entering. Semicircular mounting openings are provided on opposite sides of the pressing block 18, and a wire pressing piece is provided in the mounting opening for sealing and pressing the cable.

[0033] The driving mechanism is arranged on the top inner wall of the installation frame 1 and is used to squeeze the pressing block 18 to form a seal for the cable.

[0034] In the present invention, the wire pressing part is composed of multiple layers of circular sealing sleeves 20 bonded together. The sealing sleeves 20 are bonded and fixed to the mounting opening in the pressing block 18. The sealing sleeves 20 can be peeled off in a single layer to match the cable. The sealing sleeves 20 are rubber. The multi-layer sealing sleeves 20 are formed in an onion shape and can be peeled off according to the cable diameter, thereby improving the flexibility of use.

[0035] In particular, the driving mechanism includes an upper pressure plate 11 and two pairs of fixed blocks 12. The upper pressure plate 11 is located at the top of the wire pressing mechanism 5. The two pairs of fixed blocks 12 are respectively fixed on the top inner wall of the mounting frame 1 and the surface of the upper pressure plate 11. It also includes two driving blocks 13. The driving blocks 13 are respectively located on the side away from each other of the two pairs of fixed blocks 12. The opposite side corners of the driving blocks 13 are each provided with a second inclined surface for inserting between two adjacent fixed blocks 12. A bidirectional screw rod 14 is threadedly connected between the two driving blocks 13. The bidirectional screw rod 14 is rotated to make the two driving blocks 13 approach, thereby squeezing the upper pressure plate 11 downward. The pressing block 18 is made of EPDM rubber material, so that the wire pressing mechanism 5 is compacted to achieve sealing.

[0036] It should be noted that seals are provided on both sides of the driving mechanism. The seals include a limit plate 16 and a sealing plate 15 fixed to one end of the upper pressure plate 11. The sealing plate 15 is provided with a first inclined surface 17 at the corner on one side close to the driving block 13. The sealing plate 15 is fixed to the adjacent driving block 13 by bolts. After locking the sealing plate 15 on one side of the driving block 13 above the upper pressure plate 11, the top sealing can be completed.

[0037] This application can be used in the field of power cabinet cable installation, and can also be used in other fields applicable to this application.

[0038] In another embodiment: Figures 1-4 A cable wall sealing device for a power cabinet includes: it is applied to the field of power cabinet cable installation.

[0039] In the present invention, both ends of the middle plate 8 are fixedly connected with baffles 9, which can limit the deformation of the ends of the pressing block 18 and improve the sealing performance.

[0040] In particular, a pressure gauge 3 is threadedly installed on one side of the sealing shell 6, and an inflation tube 4 is fixedly connected to one side of the sealing shell 6. A valve is provided at one end of the inflation tube 4. The pressure gauge 3 is used to observe the air pressure in the installation frame 1 to facilitate judgment of whether there is an air leak. The installation frame 1 can be easily inflated through the inflation tube 4.

[0041] It should be noted that both sides of the installation frame 1 are fixedly connected to the limiting frames 2, which can limit the installation frame 1 in the wall and facilitate sealing the holes on the wall with sealing materials.

[0042] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0043] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cable wall sealing device for a power cabinet, characterized in that: include: A mounting frame (1), wherein a U-shaped sealing shell (6) is fixed to the inner wall of the mounting frame (1), a closed cavity is formed between the sealing shell (6) and the inner wall of one side of the mounting frame (1) for storing air, and a plurality of penetrating air holes (7) are opened on one side of the sealing shell (6) and communicated with the inner cavity of the mounting frame (1); The installation frame (1) is provided with multiple layers of wire pressing mechanisms (5), an intermediate plate (8) is placed between the upper and lower layers of wire pressing mechanisms (5), and the surface of the intermediate plate (8) is provided with through-holes (10) for ventilation; The wire pressing mechanism (5) comprises two pressing blocks (18) arranged above and below, each of the pressing blocks (18) is provided with a gap (19) in the middle for air to enter, and a semicircular mounting opening is provided on the opposite side of the pressing block (18), and a wire pressing member is provided in the mounting opening for sealing and pressing the cable; A driving mechanism is provided on the top inner wall of the installation frame (1) and is used for squeezing the pressing block (18) to form a seal on the cable.

2. A cable wall sealing device for a power cabinet according to claim 1, characterized in that: The wire pressing piece is composed of a plurality of layers of circular sealing sleeves (20) bonded together. The sealing sleeves (20) are bonded and fixed to the mounting opening in the pressing block (18). The sealing sleeves (20) can be peeled off in a single layer to match the cable.

3. A cable wall sealing device for a power cabinet according to claim 1, characterized in that: The driving mechanism comprises an upper pressing plate (11) and two pairs of fixed blocks (12), wherein the upper pressing plate (11) is located at the top of the wire pressing mechanism (5), and the two pairs of fixed blocks (12) are respectively fixed on the top inner wall of the mounting frame (1) and the surface of the upper pressing plate (11), and further comprises two driving blocks (13), wherein the driving blocks (13) are respectively located on the side away from each other of the two pairs of fixed blocks (12), and a second inclined surface is provided at the corner on the opposite side of the driving block (13) for inserting between two adjacent fixed blocks (12), and a bidirectional screw rod (14) is threadedly connected between the two driving blocks (13).

4. A cable wall sealing device for a power cabinet according to claim 3, characterized in that: Both sides of the driving mechanism are provided with sealing members, the sealing members comprising a limit plate (16) fixed to one end of the upper pressure plate (11) and a sealing plate (15), a first inclined surface (17) being provided at a corner of one side of the sealing plate (15) close to the driving block (13), and the sealing plate (15) being fixed to the adjacent driving block (13) by bolts.

5. The cable wall sealing device for a power cabinet according to claim 1, characterized in that: Both ends of the intermediate plate (8) are fixedly connected to baffles (9).

6. A cable wall sealing device for a power cabinet according to claim 1, characterized in that: A pressure gauge (3) is threadedly mounted on one side of the sealing shell (6), and an inflation tube (4) is fixedly connected to one side of the sealing shell (6), with a valve provided at one end of the inflation tube (4).

7. The cable wall sealing device for a power cabinet according to claim 1, characterized in that: Both sides of the installation frame (1) are fixedly connected to the limiting frames (2).

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