A strong and weak current protection isolation device

Abstract

The utility model provides a kind of strong and weak electric protection isolation device, including galvanized steel pipe, PVC pipe is mutually perpendicular with galvanized steel pipe arrangement, two jackets are respectively set on galvanized steel pipe and PVC pipe, the fastener formed by the hexagon socket head cap screw and limit nut for narrowing strip joint is uniformly installed in the end of two jackets far from each other, bracket one end is installed with collar, collar is set on one hexagon socket head cap screw, and collar is in the strip joint on one jacket, the middle position of one side surface of moving seat is installed with inserting rod, U-shaped sleeve is set on inserting rod, the middle position of one side of U-shaped sleeve facing jacket is threadedly connected with the hexagon socket head cap screw for limiting the relative position of inserting rod and U-shaped sleeve, the utility model has the beneficial effects that effective installation point can be found in complex cross scene.

Description

Technical Field

[0001] This utility model is a strong and weak current protection and isolation device, belonging to the field of electrical technology. Background Technology

[0002] In scenarios where strong and weak current lines are laid at intersections, to achieve strict isolation and protection, strong current lines must be run through galvanized steel pipes, while weak current lines are laid in PVC pipes. The two are connected and fixed by a cross structure composed of two clamps. This cross design is specifically designed for the positioning needs of intersecting conduits: the two clamps interlock at 90° perpendicularly, respectively wrapping around the outer walls of the galvanized steel pipe and the PVC pipe, and restricting radial displacement through the tight fit between the inner wall and the conduit.

[0003] To ensure a stable installation of the cross brace, the outer surface of the jacket extends with perforated lugs. Bolts are screwed into the wall, cable tray, or other support after passing through the holes in the lugs, thus firmly fixing the entire cross structure. However, in actual installation, an awkward situation often arises: due to limited space at the intersection of high-voltage and low-voltage lines, the area may be adjacent to wall corners, other pipelines, or protruding building structures. The pre-designed holes in the lugs often overlap with these obstacles, preventing the bolts from being easily inserted and fixed. In this case, although the lugs are designed with mounting holes, they become useless due to the physical limitations of the site environment. Instead, the lugs may protrude from the pipeline surface, increasing the space occupied in the intersection area and causing inconvenience for subsequent line maintenance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a strong and weak current protection and isolation device to solve the problems mentioned in the background technology. This utility model can find an effective installation point in complex cross-cutting scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a strong and weak current protection and isolation device, comprising:

[0006] Galvanized steel pipes are used for threading high-voltage electrical cables.

[0007] PVC pipes, arranged perpendicularly to galvanized steel pipes, are used for threading low-voltage cables.

[0008] The sleeve is provided in two parts, which are respectively fitted onto the galvanized steel pipe and the PVC pipe. The two sleeves are connected and fixed to each other. A strip-shaped slit is machined on the opposite side of the two sleeves. Fasteners formed by hexagonal socket screws and limit nuts for narrowing the strip-shaped slit are installed at the far ends of the two sleeves.

[0009] The bracket has a collar installed at one end, which is fitted onto an internal hexagon screw and is located in a strip slot on a clip. The end of the bracket away from the collar has two fixing holes for inserting bolts.

[0010] The movable base has a rod installed in the middle of one side, and a U-shaped sleeve is fitted on the rod. The U-shaped sleeve is connected and fixed to the bracket. A clamping screw for limiting the relative position of the rod and the U-shaped sleeve is threaded in the middle of the side of the U-shaped sleeve facing the clamp. Two small holes for inserting bolts are opened on one side of the movable base.

[0011] Furthermore, each of the two collets has two countersunk holes machined at its far ends. The countersunk holes communicate with the slot. The head of the hexagonal screw is located in one of the countersunk holes of the collet, and one end of the hexagonal screw extends into the other countersunk hole on the corresponding collet and is threadedly connected to a limit nut.

[0012] Furthermore, a through hole is provided in the middle of the side of the U-shaped sleeve facing the jacket, and a fixing nut is provided on the outside of the through hole and arranged concentrically with the through hole. The fixing nut is connected and fixed to the U-shaped sleeve, and the clamping screw is threadedly connected to the fixing nut.

[0013] Furthermore, a rubber strip is glued to the side of the insertion rod facing the through hole, and one end of the clamping screw passes through the through hole and contacts the rubber strip.

[0014] Furthermore, the side of the insert facing the through hole is recessed to form a strip groove, and the rubber strip is glued into the strip groove. The thickness of the rubber strip is the same as the depth of the strip groove, and the strip groove is arranged along the length of the insert.

[0015] Furthermore, a connector is fixedly connected to the center of one side of the movable seat, and one end of the insertion rod is fixedly connected to the connector.

[0016] Furthermore, the connector and the movable base are integrally formed, and the insertion rod and the movable base are arranged perpendicular to each other.

[0017] Furthermore, the bracket has an L-shaped structure, and the movable seat is arranged flush with the part of the bracket where the fixing hole is machined.

[0018] The beneficial effects of this utility model are:

[0019] 1. The bracket is connected to the sleeve via a collar and an internal hex screw, allowing for 360° rotation around the screw to adjust its direction. The movable base's insertion rod slides along the U-shaped sleeve, enabling telescopic adjustment of the distance, which is then locked in place with the clamping screw. This dual adjustment mechanism of rotation and telescopic movement allows the fixing holes and small holes to flexibly avoid obstacles such as wall corners and pipelines, enabling the identification of effective installation points in complex and intersecting environments. This solves the problem of bolts being unable to be installed due to the fixed position of traditional brackets.

[0020] 2. When the collar is fitted onto a hexagon socket screw, and the gap of the strip is reduced by the cooperation of the hexagon socket screw and the limit nut, the position of the bracket is also restricted, so there is no need to use other connecting parts to restrict the relative position of the bracket and the sleeve. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a strong and weak current protection and isolation device according to the present invention;

[0023] Figure 2 This is another perspective view of the strong and weak current protection and isolation device of this utility model;

[0024] Figure 3 This is an exploded structural diagram of the internal hexagonal screw, the limiting nut, and the jacket in a strong and weak current protection and isolation device of this utility model.

[0025] Figure 4 This is an assembly diagram of the movable base and bracket in a strong and weak current protection and isolation device of this utility model;

[0026] In the picture:

[0027] 1. Galvanized steel pipe;

[0028] 2. Jacket; 21. Strip seam; 22. Socket countersunk hole;

[0029] 3. Hex socket head cap screws; 31. Limit nuts;

[0030] 4. Bracket; 41. Fixing hole; 42. Collar;

[0031] 5. Movable base; 51. Small hole; 52. Insert rod; 53. U-shaped sleeve; 54. Clamping screw; 55. Connector; 56. Fixing nut; 57. Rubber strip;

[0032] 6. PVC pipe. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0034] Please see Figures 1-3 This utility model provides a technical solution: a strong and weak current protection and isolation device, including a galvanized steel pipe 1 and a PVC pipe 6 arranged perpendicularly to the galvanized steel pipe 1. Two jackets 2 are provided, each sleeved onto the galvanized steel pipe 1 and the PVC pipe 6 respectively, and the two jackets 2 are connected and fixed to each other. A strip-shaped slit 21 is machined on the back of each of the two jackets 2. Fasteners formed by an internal hexagonal screw 3 and a limiting nut 31 for narrowing the strip-shaped slit 21 are installed at the far ends of each of the two jackets 2. Two internal hexagonal countersunk holes 2 are machined at the far ends of each of the two jackets 2. 2. The countersunk hole 22 of the internal hexagon socket head cap screw 3 communicates with the slot 21. The head of the internal hexagon socket head cap screw 3 is set in one of the countersunk holes 22 of the clamp 2. One end of the internal hexagon socket head cap screw 3 extends into another countersunk hole 22 on the corresponding clamp 2 and is threadedly connected to the limit nut 31. The galvanized steel pipe 1 and the PVC pipe 6 are connected by a cross formed by the two clamps 2. At this time, the high-voltage cables inserted in the galvanized steel pipe 1 and the low-voltage cables inserted in the PVC pipe 6 are physically separated, which complies with electrical safety specifications and effectively blocks electromagnetic interference and leakage current conduction from high voltage to low voltage. The two clamps 2, through the design of the slot 21, combined with the tightening effect of the internal hexagon socket head cap screw 3 and the limit nut 31, can form a uniform clamping force on the galvanized steel pipe 1 and the PVC pipe 6.

[0035] See Figures 1-4The bracket 4 has an L-shaped structure. One end of the bracket 4 is equipped with a collar 42, which is fitted onto an internal hexagon screw 3. The collar 42 is located in a strip slit 21 on a sleeve 2. The end of the bracket 4 away from the collar 42 is machined with two fixing holes 41 for inserting bolts. The movable seat 5 is flush with the part of the bracket 4 where the fixing holes 41 are machined. A plug rod 52 is installed in the middle of one side of the movable seat 5. A connector 55 is connected and fixed in the middle of one side of the movable seat 5. One end of the plug rod 52 is connected and fixed to the connector 55. The connector 55 and the movable seat 5 are integrally formed. The plug rod 52 and the movable seat 5 are arranged perpendicular to each other. The connector 55 increases the connection range between the plug rod 52 and the movable seat 5. The collar 42 is fitted onto the middle section of the internal hexagon screw 3 of one of the clamps 2. When the fasteners are tightened by the cooperation of the internal hexagon screw 3 and the limiting nut 31, the slot 21 of the clamp 2 gradually narrows. During this process, the inner wall of the slot 21 forms a uniform clamping force on the collar 42, achieving a tight wrapping of the pipeline by the clamp 2 while simultaneously locking the collar 42 firmly in the preset position. The ingenuity of this design lies in achieving a dual function with the same set of fasteners: both by narrowing the slot 21 to achieve a stable clamping of the galvanized steel pipe 1 or PVC pipe 6 by the clamp 2, and by using the compressive force generated by the narrowing of the slot 21 to fix the collar 42, thus connecting the bracket 4 and the clamp 2. There is no need to add additional clips, bolts, or other connecting parts to constrain the position of the two, which simplifies the assembly process and avoids structural redundancy caused by connecting multiple parts.

[0036] See Figure 1 and Figure 4 A U-shaped sleeve 53 is fitted onto the insertion rod 52. The U-shaped sleeve 53 is connected and fixed to the bracket 4. A clamping screw 54 is threadedly connected to the middle of the side of the U-shaped sleeve 53 facing the clamp 2 to limit the relative position of the insertion rod 52 and the U-shaped sleeve 53. A through hole is opened in the middle of the side of the U-shaped sleeve 53 facing the clamp 2. A fixing nut 56 is arranged concentrically with the through hole on the outside of the through hole. The fixing nut 56 is connected and fixed to the U-shaped sleeve 53. The clamping screw 54 is threaded into the fixing nut 56. The fixing nut 56 reduces the wall thickness of the U-shaped sleeve 53 while ensuring a stable connection between the clamping screw 54 and the U-shaped sleeve 53.

[0037] See Figures 1-4The movable base 5 has two small holes 51 on one side for inserting bolts. The connection between the bracket 4 and the clamp 2 adopts a collar 42 structure, which is directly fitted onto an internal hex screw 3, allowing the bracket 4 to rotate freely around the internal hex screw 3 and flexibly adjust its orientation. The insertion rod 52 of the movable base 5 passes through the U-shaped sleeve 53 and can slide smoothly along the length of the U-shaped sleeve 53 to achieve distance extension and retraction adjustment. After adjustment, tightening the clamping screw 54 on the U-shaped sleeve 53 locks the position of the insertion rod 52, ensuring the movable base 5 is stably fixed. This dual adjustment design of rotation and extension makes the fixing hole 41 on the bracket 4 and the small hole 51 on the movable base 5 no longer restricted by fixed position. When there are obstacles such as wall corners, other pipelines, or building protrusions around the intersection of strong and weak current lines, the orientation of the fixing hole 41 can be changed by rotating the bracket 4, or the position of the small hole 51 can be adjusted by extending and retracting the movable base 5, so that the fixing hole 41 and the small hole 51 can cleverly avoid obstacles, and a suitable installation point can always be found in complex intersection scenarios. Compared to the fixed-position lugs in traditional devices, this design completely solves the problem of bolts being difficult to install because the position of the lugs cannot be changed.

[0038] See Figure 1 and Figure 4 The side of the insert rod 52 facing the through hole is recessed to form a strip groove. The rubber strip 57 is glued into the strip groove. The thickness of the rubber strip 57 is the same as the depth of the strip groove. The strip groove is arranged along the length of the insert rod 52, so that one end of the clamping screw 54 passes through the through hole and contacts the rubber strip 57, thereby improving the stability of the clamping screw 54 in restricting the position of the insert rod 52.

[0039] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A strong and weak current protection and isolation device, characterized in that, include: Galvanized steel pipe (1), used for threading high-voltage cables; PVC pipe (6) is arranged perpendicularly to galvanized steel pipe (1) for inserting low-voltage cables; There are two jackets (2), which are respectively fitted onto the galvanized steel pipe (1) and the PVC pipe (6). The two jackets (2) are connected and fixed to each other. The back sides of the two jackets (2) are machined with strip slots (21). The ends of the two jackets (2) that are far apart are fitted with fasteners formed by hexagonal screws (3) and limit nuts (31) for reducing the strip slots (21). The bracket (4) has a collar (42) installed at one end. The collar (42) is fitted onto an internal hexagon screw (3) and is located in a strip slot (21) on a clip (2). The bracket (4) has two fixing holes (41) for inserting bolts at the end away from the collar (42). The movable seat (5) has a plug rod (52) installed in the middle of one side. A U-shaped sleeve (53) is fitted on the plug rod (52). The U-shaped sleeve (53) is connected and fixed to the bracket (4). A clamping screw (54) for limiting the relative position of the plug rod (52) and the U-shaped sleeve (53) is threaded in the middle of the side of the U-shaped sleeve (53) facing the clamp (2). The movable seat (5) has two small holes (51) on one side for inserting bolts.

2. The strong and weak current protection and isolation device according to claim 1, characterized in that: Two countersunk holes (22) are machined at opposite ends of the two sleeves (2). The countersunk holes (22) communicate with the slot (21). The head of the socket screw (3) is set in one of the countersunk holes (22) of the sleeve (2). One end of the socket screw (3) extends into the other countersunk hole (22) on the corresponding sleeve (2) and is threaded to a limit nut (31).

3. The strong and weak current protection and isolation device according to claim 1, characterized in that: The U-shaped sleeve (53) has a through hole in the middle of the side facing the jacket (2). A fixing nut (56) is arranged concentrically with the through hole on the outside of the through hole. The fixing nut (56) is connected and fixed to the U-shaped sleeve (53). The clamping screw (54) is threaded into the fixing nut (56).

4. The strong and weak current protection isolation device according to claim 3, characterized in that: The side of the insert (52) facing the through hole is glued with a rubber strip (57), and one end of the clamping screw (54) passes through the through hole and contacts the rubber strip (57).

5. A strong and weak current protection and isolation device according to claim 4, characterized in that: The insert (52) has a groove recessed on the side facing the perforation. The rubber strip (57) is glued into the groove. The thickness of the rubber strip (57) is the same as the depth of the groove. The groove is arranged along the length of the insert (52).

6. The strong and weak current protection isolation device according to claim 1, characterized in that: A connector (55) is fixedly connected to the middle of one side of the movable seat (5), and one end of the plug (52) is fixedly connected to the connector (55).

7. A strong and weak current protection and isolation device according to claim 6, characterized in that: The connector (55) and the movable seat (5) are integrally formed, and the insertion rod (52) and the movable seat (5) are arranged perpendicular to each other.

8. The strong and weak current protection and isolation device according to claim 1, characterized in that: The bracket (4) has an L-shaped structure, and the movable seat (5) is arranged flush with the part of the bracket (4) where the fixing hole (41) is machined.

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