Power distribution cabinet pipeline installation mechanism for smart power grid

Abstract

The invention relates to the technical field of power distribution cabinets, discloses a power distribution cabinet pipeline mounting mechanism for a smart power grid, and aims to solve the problems that wire harnesses are damaged due to hard friction, and power utilization safety is affected. Through the arrangement of the fixing mechanism and the relative rotation of the fixing ring and the rotating ring, the interior of the cylindrical rubber sheet is twisted, the cylindrical rubber sheet is tightly wound on the surface of the wire harness after being twisted, flexible holding is achieved through the friction force between rubber and the wire harness, hard friction does not occur between the cylindrical rubber sheet and the wire harness, and the wire harness is prevented from being damaged. And meanwhile, the twisted cylindrical rubber sheet is attached to the wire harness to form flexible sealing, so that external dust and moisture are prevented from entering the power distribution cabinet, and the power utilization safety of the power distribution cabinet is further maintained.

Description

Technical Field

[0001] This application relates to the field of power distribution cabinet technology, and in particular to a power distribution cabinet pipeline installation mechanism for smart grids. Background Technology

[0002] As the core terminal equipment on the distribution side of the smart grid, the distribution cabinet is a key hub connecting the power grid transmission and distribution system with the power load. The distribution cabinet needs to connect the wiring harness to the cabinet cavity from the outside, which requires the use of pipeline installation mechanism to guide and fix the wiring harness.

[0003] In some existing pipeline installation mechanisms, the wiring harness is first guided through the mechanism into the distribution cabinet. Then, clamps are used to hold and fix the wiring harness, thereby completing the installation operation.

[0004] However, after entering the distribution cabinet, the wire harness is affected by the external environment (such as human contact), and thus subjected to slight pulling force. The pulled wire harness is prone to slight hard friction with the fixed clamp, which makes the insulation layer of the wire harness prone to damage during long-term use, thereby affecting electrical safety. Summary of the Invention

[0005] This application proposes a wiring installation mechanism for a distribution cabinet in a smart grid, which has the advantage of reducing the probability of damage to the insulation layer of the wiring harness, thereby solving the problem of wiring harness damage caused by hard friction, which affects electrical safety.

[0006] To achieve the above objectives, this application adopts the following technical solution: a wiring installation mechanism for a smart grid distribution cabinet, comprising: a supporting housing, wherein the supporting housing is disposed on the side of the distribution cabinet and is fixedly connected to the distribution cabinet by bolts; a wiring harness channel is provided transversely at equal intervals inside the supporting housing, the wiring harness channel communicating with the inner cavity of the distribution cabinet; a fixing mechanism is provided inside the wiring harness channel, the fixing mechanism comprising: A fixing ring is installed at one end of the wire harness channel near the distribution cabinet. A rotating ring is located at the end of the wire harness channel away from the fixed ring. Fine threads are provided on the outer surface of the rotating ring and the inner wall of the rotating ring corresponding to the wire harness channel. The rotating ring and the inner wall of the corresponding position of the wire harness channel are fixedly connected by threads. The cylindrical rubber sheet is installed on the opposite side of the fixed ring and the rotating ring. The wire harness enters the distribution cabinet through the movable ring, the cylindrical rubber sheet and the fixed ring in sequence.

[0007] Furthermore, the fixing mechanism also includes: The mounting ring is slidably disposed inside the rotating ring. One end of the cylindrical rubber sheet is fixedly connected to the fixing ring, and the other end of the cylindrical rubber sheet is fixedly connected to the mounting ring. Axial grooves are circumferentially and equally spaced on the outer side of the mounting ring; The slider is slidably installed in the middle position within the axial groove, and the outer side of the slider is fixedly connected to the inner wall of the rotating ring. A spring is movably fitted onto the outside of a cylindrical rubber sheet, with its two ends contacting a fixing ring and a mounting ring, respectively.

[0008] Furthermore, the fixing mechanism also includes: A straight rod is circumferentially equidistantly positioned between the cylindrical rubber sheet and the spring, and the arc-shaped side of the straight rod contacts the cylindrical rubber sheet and the spring; The ring is rotatably mounted on the side of the fixed ring facing the straight rod; A through hole is circumferentially and equidistantly opened inside the mounting ring. One end of the straight rod is fixedly connected to the ring, and the other end of the straight rod extends into the through hole and forms a sliding connection with the through hole.

[0009] Furthermore, sponge rings are symmetrically fixedly installed on both sides of the inner side of the cylindrical rubber sheet. When the cylindrical rubber sheet is twisted, the sponge rings are at both ends of the position where the cylindrical rubber sheet and the wire harness are tightly wrapped. The wire harness enters the distribution cabinet in sequence through the mounting ring, the cylindrical rubber sheet, the sponge ring and the fixing ring.

[0010] Furthermore, the sponge ring is a porous high-density polyurethane sponge to prevent local wrinkles from appearing when the sponge ring is subjected to torsion and compression.

[0011] Furthermore, a thin silicone layer is vulcanized on the surface of the sponge ring, and the thickness of the thin silicone layer is one millimeter.

[0012] Furthermore, the tubular rubber sheet is made of fluororubber, the spring is made of 316 stainless steel, and the sponge ring and the tubular rubber sheet are integrally vulcanized.

[0013] Furthermore, the portion of the rotating ring located outside the wire harness channel has a protrusion, the diameter of which is larger than the diameter of the wire harness channel.

[0014] This application has the following beneficial effects: This application provides a wiring installation mechanism for a smart grid distribution cabinet. Through the setting of a fixing mechanism, the relative rotation of the fixing ring and the rotating ring causes the cylindrical rubber sheet to be twisted. After twisting, the cylindrical rubber sheet tightly wraps around the surface of the wiring harness. The friction between the rubber and the wiring harness achieves flexible clamping, preventing hard friction between the cylindrical rubber sheet and the wiring harness, thereby reducing the probability of damage to the wiring harness insulation layer. At the same time, the twisted cylindrical rubber sheet adheres to the wiring harness, forming a flexible seal, which further prevents external dust and moisture from entering the distribution cabinet, thus further maintaining the electrical safety of the distribution cabinet.

[0015] With the setting of the fixing mechanism, during the relative rotation of the fixing ring and the rotating ring, the two ends of the torsion cylindrical rubber sheet will gradually approach each other and be subjected to the reverse pressure of the spring. The spring stretches the two ends of the cylindrical rubber sheet, causing the cylindrical rubber sheet to hug the wire harness more tightly, thereby improving the fixing effect of the wire harness and further promoting the flexible sealing effect, reducing the amount of external dust and moisture entering the distribution cabinet.

[0016] By using the fixed mechanism and the dual elastic properties of the spring and the cylindrical rubber sheet, the impact force generated by external vibration (such as equipment operation or external collision) can be absorbed, and the wire harness can be prevented from being subjected to hard friction (the spring absorbs large external vibrations, and the rubber sheet buffers medium-frequency vibrations). At the same time, the elasticity of the cylindrical rubber sheet can buffer the axial tensile force of the wire harness, prevent the internal copper core from breaking, and extend the service life of the wire harness. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0018] This application can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the installation position of the fixing ring of the present invention; Figure 3 This is a schematic diagram of the internal structure of the supporting shell of the present invention; Figure 4 This is a schematic diagram of the components of the fixing mechanism of the present invention; Figure 5 This is a schematic diagram showing the location of the sponge ring in this invention; Figure 6 This is a schematic diagram of the torsion state of the tubular rubber sheet of the present invention.

[0019] In the diagram: 1. Support housing; 2. Wiring harness channel; 3. Fixing mechanism; 30. Fixing ring; 31. Rotating ring; 32. Cylindrical rubber sheet; 33. Mounting ring; 34. Axial groove; 35. Slider; 36. Spring; 37. Straight rod; 38. Ring; 39. Through hole; 4. Sponge ring. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] Example 1: Please refer to Figures 1-6 A wiring installation mechanism for a smart grid distribution cabinet includes a support housing 1, which is located on the side of the distribution cabinet and is fixedly connected to the distribution cabinet by bolts. A wiring harness channel 2 is equidistantly spaced laterally through the interior of the support housing 1, communicating with the inner cavity of the distribution cabinet. A fixing mechanism 3 is installed within the wiring harness channel 2, comprising a fixing ring 30, a rotating ring 31, and a cylindrical rubber sheet 32. The fixing ring 30 is fixedly installed at the end of the wiring harness channel 2 near the distribution cabinet, and the rotating ring 31 is located at the end of the wiring harness channel 2 away from the fixing ring 30. Fine threads are formed on the outer surface of the rotating ring 31 corresponding to the inner wall of the wiring harness channel 2, forming a threaded fixed connection between the rotating ring 31 and the inner wall of the corresponding position of the wiring harness channel 2. A cylindrical rubber sheet 32 ​​is installed on the opposite sides of the fixing ring 30 and the rotating ring 31. The wiring harness enters the distribution cabinet sequentially through the rotating ring 31, the cylindrical rubber sheet 32, and the fixing ring 30.

[0022] In use, first pass the wire harness connection end through the rotating ring 31, the cylindrical rubber sheet 32, and the fixing ring 30 in sequence. Then, the installer rotates the rotating ring 31, causing the cylindrical rubber sheet 32 ​​to twist (e.g., Figure 6 As shown, the rotation angle of the tubular rubber sheet 32 ​​is adaptively changed according to the diameter of the wire harness. After the tubular rubber sheet 32 ​​is twisted, it is tightly wrapped around the surface of the wire harness. The friction between the rubber and the wire harness is used to achieve flexible clamping, so that the tubular rubber sheet 32 ​​and the wire harness will not have hard friction, thereby reducing the probability of damage to the wire harness insulation layer. Meanwhile, the twisted cylindrical rubber sheet 32 ​​fits into the wire harness to form a flexible seal, thereby preventing external dust and moisture from entering the distribution cabinet and further protecting the electrical safety of the distribution cabinet. Meanwhile, after the tubular rubber sheet 32 ​​is twisted, the middle section of the wire harness is restricted to the center position of the wire harness channel 2, which makes the distance between the wire harness at both ends of the wire harness channel 2 and the inner wall of the wire harness channel 2 larger, thereby reducing the amount of contact between the wire harness and both ends of the wire harness channel 2, reducing the wear area of ​​the wire harness, and further reducing the probability of damage to the wire harness insulation layer.

[0023] In addition, the self-locking function is achieved by the threaded setting of the rotating ring 31 on the inner wall of the wire harness channel 2, which prevents the cylindrical rubber sheet 32 ​​from loosening. After the wire harness is fixed, the connection end of the wire harness is connected to the device in the distribution cabinet. When the wire harness needs to be replaced, the rotating ring 31 is reversed so that the threaded part of the rotating ring 31 is unscrewed out of the wire harness channel 2, and the cylindrical rubber sheet 32 ​​is rotated back to its original position and the wire harness is released. Then, the wire harness is taken out and the above operation is repeated.

[0024] For further securing of the wire harness, please refer to [link / reference]. Figures 1-6The fixing mechanism 3 also includes a mounting ring 33, an axial groove 34, a slider 35, and a spring 36. The mounting ring 33 is slidably disposed inside the rotating ring 31. The outer side of the mounting ring 33 is provided with axial grooves 34 at equal intervals around its circumference. The slider 35 is slidably mounted in the middle position of the axial groove 34. The outer side of the slider 35 is fixedly connected to the inner wall of the rotating ring 31. One end of the cylindrical rubber sheet 32 ​​is fixedly connected to the fixing ring 30, and the other end of the cylindrical rubber sheet 32 ​​is fixedly connected to the mounting ring 33. The outer side of the cylindrical rubber sheet 32 ​​is movably sleeved with a spring 36. The two ends of the spring 36 contact the fixing ring 30 and the mounting ring 33, respectively.

[0025] When the installer rotates the rotating ring 31, the rotating ring 31 contacts the axial groove 34 through the slider 35, thereby driving the mounting ring 33 to rotate synchronously. This causes the mounting ring 33 to drive the cylindrical rubber sheet 32 ​​to twist and tighten the wire harness. During this process, the two ends of the twisted cylindrical rubber sheet 32 ​​will gradually approach each other, thereby driving the mounting ring 33 to move towards the fixed ring 30 and contact and compress the spring 36. The compressed spring 36 applies reverse pressure to the mounting ring 33, thereby causing the mounting ring 33 to tighten the twisted cylindrical rubber sheet 32, causing the cylindrical rubber sheet 32 ​​to further tighten the wire harness, thereby improving the fixing effect of the wire harness and further promoting the flexible sealing effect, reducing the amount of external dust and moisture entering the distribution cabinet. Meanwhile, by utilizing the dual elastic properties of spring 36 and tubular rubber sheet 32, the impact force generated by external vibration (such as equipment operation and external collision) can be absorbed, and the wire harness can be prevented from being subjected to hard friction (spring 36 absorbs large external vibration, and tubular rubber sheet 32 ​​buffers medium frequency vibration). At the same time, the elasticity of tubular rubber sheet 32 ​​can buffer the axial tensile force of the wire harness, prevent the internal copper core from breaking, and extend the service life of the wire harness. In addition, through the dual design of fine thread self-locking and initial slider 35 mid-position buffer (in the initial state, slider 35 is in the middle position of axial groove 34. When the cylindrical rubber sheet 32 ​​is twisted, the rotating ring 31 drives slider 35 to approach fixed ring 30, while the cylindrical rubber sheet 32 ​​drives mounting ring 33 and axial groove 34 to approach fixed ring 30, so that slider 35 is always in the middle range of axial groove 34, so that slider 35 is not rigidly connected to mounting ring 33, and thus the vibration force on the wire harness cannot be directly transmitted to rotating ring 31), the impact force generated by equipment vibration can be offset, and the wire harness loosening can be completely eliminated.

[0026] To prevent radial movement of spring 36, please refer to... Figures 1-6The fixing mechanism 3 also includes a straight rod 37, a ring 38, and a through hole 39. The straight rod 37 is circumferentially equidistantly positioned between the cylindrical rubber sheet 32 ​​and the spring 36. The arc-shaped side of the straight rod 37 contacts the cylindrical rubber sheet 32 ​​and the spring 36. The ring 38 is rotatably mounted on the side of the fixing ring 30 facing the straight rod 37. The through hole 39 is circumferentially equidistantly opened inside the mounting ring 33. One end of the straight rod 37 is fixedly connected to the ring 38, and the other end of the straight rod 37 extends into the through hole 39 and forms a sliding connection with the through hole 39.

[0027] During the synchronous rotation of the rotating ring 31 and the mounting ring 33, the mounting ring 33 drives the ring 38 to rotate via the straight rod 37. At the same time, when the torsion cylindrical rubber sheet 32 ​​drives the mounting ring 33 closer to the fixed ring 30, the straight rod 37 will further extend into the through hole 39, thereby keeping the straight rod 37 always within the inner wall of the spring 36 and limiting its radial movement, preventing the spring 36 from contacting the cylindrical rubber sheet 32, avoiding scratches or pinches on the cylindrical rubber sheet 32 ​​by the spring 36, and thus extending the service life of the cylindrical rubber sheet 32.

[0028] Example 2: To further reduce the friction experienced by the wire harness, please refer to... Figures 1-6 Sponge rings 4 are symmetrically fixed on both sides of the inner side of the cylindrical rubber sheet 32. When the cylindrical rubber sheet 32 ​​is twisted, the sponge rings 4 are at both ends of the position where the cylindrical rubber sheet 32 ​​and the wire harness are tightly wrapped. The wire harness enters the distribution cabinet in sequence through the mounting ring 33, the cylindrical rubber sheet 32, the sponge rings 4 and the fixing ring 30.

[0029] When the above-mentioned cylindrical rubber sheet 32 ​​is twisted, the sponge ring 4 is radially squeezed along with the twist of the cylindrical rubber sheet 32, and then fills both ends of the position where the cylindrical rubber sheet 32 ​​and the wire harness are tightly wrapped, so that the tiny gap between the positions is filled and sealed by the squeezed sponge ring 4, thereby preventing moisture and dust from penetrating into the distribution cabinet along the axial direction of the wire harness and maintaining the electrical safety of the distribution cabinet. At the same time, the sponge ring 4, which is subjected to radial compression, will further compress the wire harness, thereby improving the flexible fixing effect of the wire harness.

[0030] Example 3: The sponge ring 4 is a porous high-density polyurethane sponge.

[0031] The above settings prevent local wrinkles from forming on the sponge ring 4 when it is twisted and squeezed, thus affecting the filling effect; Meanwhile, the high-density sponge ring 4 has a certain water absorption capacity, which can absorb a small amount of moisture (such as condensation) that seeps in, preventing water vapor from entering the distribution cabinet along the wiring harness and avoiding moisture-induced corrosion of components.

[0032] To improve wear resistance and sealing performance, a thin silicone layer is vulcanized on the surface of the sponge ring 4, with a thickness of 0.5 to 1 mm.

[0033] By setting a thin silicone layer, the wear resistance and sealing performance of the sponge ring 4 are improved, and the sponge ring 4 is prevented from wearing off and falling off during long-term contact with the wire harness. The high-density sponge ring 4 has a certain water absorption capacity, and combined with the hydrophobic properties of the silicone layer, it can achieve dual moisture protection of "water absorption + hydrophobicity".

[0034] The tubular rubber sheet 32 ​​is made of fluororubber, the spring 36 is made of 316 stainless steel, and the sponge ring 4 and the tubular rubber sheet 32 ​​are integrally vulcanized.

[0035] The sponge ring 4 and the tubular rubber sheet 32 ​​are integrally vulcanized, replacing glue bonding, which avoids the sponge ring 4 and the tubular rubber sheet 32 ​​being not firmly connected and easy to fall off.

[0036] Please see Figure 3 The rotating ring 31 has a protrusion on the outer side of the wire harness channel 2, and the diameter of the protrusion is larger than the diameter of the wire harness channel 2.

[0037] The protruding part makes it easier for installers to rotate the rotating ring 31, improving the convenience of installation.

Claims

1. A power distribution cabinet pipeline installation mechanism for a smart grid, comprising: A supporting housing (1) is provided on the side of the distribution cabinet and is fixedly connected to the distribution cabinet by bolts. A wire harness channel (2) is provided transversely and equidistantly inside the supporting housing (1). The wire harness channel (2) communicates with the inner cavity of the distribution cabinet. The characteristic feature is that a fixing mechanism (3) is provided inside the wire harness channel (2). The fixing mechanism (3) includes: The fixing ring (30) is fixedly installed at one end of the wire harness channel (2) near the distribution cabinet; A rotating ring (31) is set at one end of the wire harness channel (2) away from the fixed ring (30). The outer side of the rotating ring (31) and the inner wall of the rotating ring (31) corresponding to the wire harness channel (2) are both provided with fine threads. The rotating ring (31) and the inner wall of the wire harness channel (2) at the corresponding position form a threaded fixed connection. The cylindrical rubber sheet (32) is installed on the side opposite to the fixed ring (30) and the rotating ring (31). The wire harness enters the distribution cabinet through the movable ring, the cylindrical rubber sheet (32) and the fixed ring (30) in sequence.

2. The power distribution cabinet pipeline installation mechanism for a smart grid according to claim 1, characterized in that, The fixing mechanism (3) also includes: The mounting ring (33) is slidably disposed inside the rotating ring (31). One end of the cylindrical rubber sheet (32) is fixedly connected to the fixing ring (30), and the other end of the cylindrical rubber sheet (32) is fixedly connected to the mounting ring (33). Axial grooves (34) are circumferentially equidistantly opened on the outer side of the mounting ring (33); The slider (35) is slidably installed in the middle position of the axial groove (34), and the outer side of the slider (35) is fixedly connected to the inner wall of the rotating ring (31); A spring (36) is movably sleeved on the outside of a cylindrical rubber sheet (32), with the two ends of the spring (36) contacting a fixing ring (30) and a mounting ring (33) respectively.

3. The power distribution cabinet pipeline mounting mechanism for a smart grid according to claim 2, characterized in that, The fixing mechanism (3) also includes: A straight rod (37) is circumferentially equidistantly positioned between the cylindrical rubber sheet (32) and the spring (36), with the arc-shaped side of the straight rod (37) contacting the cylindrical rubber sheet (32) and the spring (36). The ring (38) is rotatably mounted on the side of the fixed ring (30) facing the straight rod (37); A through hole (39) is circumferentially and equidistantly opened inside the mounting ring (33). One end of the straight rod (37) is fixedly connected to the ring (38), and the other end of the straight rod (37) extends into the through hole (39) and forms a sliding connection with the through hole (39).

4. The power distribution cabinet pipeline mounting mechanism for a smart grid according to claim 3, characterized in that, Sponge rings (4) are symmetrically fixed on both sides of the inner side of the cylindrical rubber sheet (32). When the cylindrical rubber sheet (32) is twisted, the sponge rings (4) are located at both ends of the position where the cylindrical rubber sheet (32) and the wire harness are tightly wrapped. The wire harness enters the distribution cabinet in sequence through the mounting ring (33), the cylindrical rubber sheet (32), the sponge rings (4) and the fixing ring (30).

5. The smart grid distribution cabinet pipeline installation mechanism according to claim 4, characterized in that, The sponge ring (4) is a porous high-density polyurethane sponge, used to prevent local wrinkles from appearing when the sponge ring (4) is subjected to torsion and compression.

6. The smart grid distribution cabinet pipeline installation mechanism according to claim 4, characterized in that, A thin silicone layer is vulcanized on the surface of the sponge ring (4), and the thickness of the thin silicone layer is one millimeter.

7. The smart grid distribution cabinet pipeline installation mechanism according to claim 4, characterized in that, The tubular rubber sheet (32) is made of fluororubber, the spring (36) is made of 316 stainless steel, and the sponge ring (4) and the tubular rubber sheet (32) are integrally vulcanized.

8. The smart grid distribution cabinet pipeline installation mechanism according to claim 1, characterized in that, The rotating ring (31) has a protrusion on the part outside the wire harness channel (2), and the diameter of the protrusion is larger than the diameter of the wire harness channel (2).

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