A moisture-proof MPP cable protection tube

Abstract

A moisture-proof MPP cable protection tube comprises a tube body and a moisture-proof mechanism; the tube body comprises an outer tube, an inner tube arranged inside the outer tube, and connecting ribs arranged between the outer tube and the inner tube; an air hole is arranged on the outer tube; an air groove is arranged on the inner tube; the moisture-proof mechanism comprises an impeller rotatably mounted on the outer tube, a strong magnetic slider slidably mounted on the outer tube, a linkage component linking the impeller and the strong magnetic slider, an arc-shaped opening and closing plate slidably and elastically mounted on the air hole of the outer tube and intermittently moved by the strong magnetic slider, a circular frame slidably mounted on the inner tube, a gauze box arranged on the circular frame, an air hole fixedly mounted on the end side of the outer tube, and a limiting rod arranged between the outer tube and the inner tube; a moisture-proof material is contained in the gauze box; the present invention can utilize the impeller to drive the circular frame to move, and the movement of the circular frame can make the moisture-proof material in the gauze box alternately contact with the moisture in the tube body and the outside world, so that the moisture-proof material alternately performs moisture-proof work and regeneration.

Description

Technical Field

[0001] The invention relates to the technical field of cable protection tube assembly, and in particular to a moisture-proof MPP cable protection tube. Background Art

[0002] Cable protection tubes play a vital role in cable laying projects. Cables are susceptible to moisture, aging, and even short circuits in humid environments, so cable protection tubes need to have good moisture resistance. MPP (modified polypropylene) material has excellent physical properties and chemical stability, and can effectively isolate cables from erosion by external humid air.

[0003] However, the cable generates heat when working, which increases the temperature of the air between the cable and the inner wall of the cable protection tube. When the heated air contacts the inner wall of the tube with a lower temperature, mist is formed, which makes the inside of the cable protection tube moist. To solve the above problems, the Chinese utility model patent with publication number CN218783553U discloses a moisture-proof cable protection tube, including a tube body and an inner tube arranged inside; a central tube is arranged at the center of the inner tube, and a plurality of partitions are arranged between the central tube and the inner tube along the circumference of the inner tube, and threading holes are arranged between adjacent partitions; a plurality of connecting blocks are arranged between the inner tube and the tube body, and a first moisture-proof cavity is arranged between adjacent connecting blocks; a plurality of rows of first dehumidification holes are arranged on the inner tube, and a plurality of rows of second dehumidification holes are arranged along the circumference of the central tube; inside the central tube A second moisture-proof cavity is provided, and moisture-proof filling layers are provided inside the first moisture-proof cavity and the second moisture-proof cavity; by providing moisture-proof filling layers inside the first moisture-proof cavity and the second moisture-proof cavity, the moisture-proof filling layers are provided on both sides of the threading groove, so that the space on both sides of the cable can be moisture-proofed at the same time, and the moisture-proof effect is better; in addition, a plurality of heat conduction holes are provided on the inner tube, and by providing heat conduction parts inside the heat conduction holes, the heat generated during the use of the cable can be reused, and the interior of the central tube and the interior space of the first moisture-proof cavity can be dried and dehumidified, thereby improving the dehumidification effect of the cable protection tube.

[0004] However, although the above patent scheme can play a certain moisture-proof role, the drying and dehumidification of the space inside the central tube and the first moisture-proof cavity relies on the heat generated during the use of the cable. Such drying and dehumidification efficiency is low, and the moisture-proof filling layer cannot be dried in time, which will affect the moisture-proof effect.

[0005] Therefore, it is necessary to invent a moisture-proof MPP cable protection tube to solve the above problems. Summary of the invention

[0006] In view of the above problems, the present invention proposes a moisture-proof MPP cable protection tube, and the technical solution used is:

[0007] A moisture-proof MPP cable protection tube, comprising a tube body and a moisture-proof mechanism; the tube body comprises an outer tube, an inner tube arranged inside the outer tube, and a connecting rib arranged between the outer tube and the inner tube; the outer tube is provided with a vent; the inner tube is provided with a vent groove;

[0008] The moisture-proof mechanism includes an impeller rotatably mounted on the outer tube, a strong magnetic slider slidably mounted on the outer tube, a linkage assembly linking the impeller and the strong magnetic slider, an arc-shaped opening and closing plate slidably and elastically mounted on the air vent of the outer tube and intermittently moved by the strong magnetic slider, a circular ring frame slidably mounted on the inner tube, a gauze box arranged on the circular ring frame, a ventilation frame fixedly mounted on the end side of the outer tube, and a limit rod arranged between the outer tube and the inner tube;

[0009] The mesh box is filled with moisture-proof material;

[0010] A strong magnet that is attracted to the strong magnetic slider is fixedly installed on the circular ring frame; a closing plate 1 is fixedly installed on the circular ring frame, and a closing plate 2 that is intermittently pushed by a limiting rod is slidably and elastically installed; both the closing plate 1 and the closing plate 2 are provided with through holes, and the through holes on the closing plate 1 and the closing plate 2 are staggered; a vent is provided on the air-permeable frame corresponding to the gauze box; an opening and closing plate is slidably and elastically installed on the air-permeable frame, and a push rod that intermittently pushes the opening and closing plate is fixedly installed on the circular ring frame.

[0011] Furthermore, the linkage assembly includes a gear ring coaxially fixedly mounted on the impeller, a lead screw rotatably mounted on the outer tube and threadedly connected to the strong magnetic slider, and a gear coaxially fixedly mounted on the lead screw and meshing with the gear ring.

[0012] Furthermore, a toggle rod for intermittently toggling the arc-shaped opening and closing plate is fixedly mounted on the strong magnetic sliding block.

[0013] Furthermore, the limiting rod includes two sections, a thick rod and a thin rod, and the junction of the thick rod and the thin rod is located on the inner side of the opening and closing arc plate; the second closing plate is slidably installed on the thin rod, and the end of the thick rod intermittently pushes the second closing plate.

[0014] Furthermore, a push rod hole is provided on the air-permeable frame corresponding to the push rod.

[0015] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0016] 1. The moisture-proof mechanism of the present invention can utilize an impeller to drive a strong magnetic slider to move, thereby driving the circular frame to move, and the gauze box on the circular frame is braked accordingly. The movement of the circular frame can make the moisture-proof material in the gauze box alternately contact with the moisture in the tube body and the outside world, so that the moisture-proof material alternately performs moisture-proof work and regenerates; and the impeller is driven by wind power, without the need for additional power, which is energy-saving and environmentally friendly.

[0017] 2. The present invention effectively increases the contact area between the moisture-proof material and the outside world by providing a breathable frame and an opening and closing arc plate, thereby improving the regeneration efficiency of the moisture-proof material. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1-Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 4-Figure 6 It is a schematic diagram of the structure of the tube body of the present invention.

[0020] Figure 7 Schematic diagram of the internal structure of the tube body of the present invention.

[0021] Figure 8 It is a schematic diagram of the assembly structure of the pipe body and the moisture-proof mechanism of the present invention.

[0022] Fig. 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Fig.10 It is a schematic diagram of the assembly structure of the interior of the tube body and the moisture-proof mechanism of the present invention.

[0024] Figure 11-Figure 12 It is a schematic diagram of the assembly structure of the circular ring frame and the gauze box of the present invention.

[0025] Fig.13 The figure is a schematic diagram of the assembly structure of the impeller, the lead screw and the strong magnetic slider in the moisture-proof mechanism of the present invention.

[0026] Figure 14-15 It is a schematic structural diagram of the air-permeable frame in the moisture-proof mechanism of the present invention.

[0027] Fig.16 It is a schematic diagram of the assembly structure of the tube body, the limiting rod and the closing plate 2 of the present invention.

[0028] Figure Number:

[0029] 1-tube body; 101-outer tube; 102-inner tube (1021-ventilation groove); 103-connecting ribs; 104-support plate; 105-connecting plate;

[0030] 2- moisture-proof mechanism; 201- circular ring frame (2011- closing plate one; 2012- closing plate two; 2013- push rod; 2014- strong magnet); 202- mesh box; 203- breathable frame (2031- vent; 2032- opening and closing plate); 204- impeller (2041- gear ring); 205- lead screw (2051- gear); 206- strong magnetic slider (2061- toggle rod); 207- opening and closing arc plate; 208- limit rod. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0033] This embodiment provides a moisture-proof MPP cable protection tube, as shown in the figure, comprising a tube body 1 and a moisture-proof mechanism 2.

[0034] like Figure 4-Figure 7 As shown, the tube body 1 includes an outer tube 101, an inner tube 102, a connecting rib 103, a support plate 104 and a connecting plate 105; the inner diameter of the outer tube 101 is larger than the outer diameter of the inner tube 102, the inner tube 102 is coaxially arranged inside the outer tube 101, and the inner tube 102 and the outer tube 101 are fixedly connected by the connecting rib 103; the length of the inner tube 102 is larger than the length of the outer tube 101, so that both ends of the inner tube 102 extend out of the outer tube 101; both ends of the inner tube 102 are coaxially fixedly installed with an annular connecting plate 105; the support plate 104 is annular and is provided with two, which are respectively arranged on the outside of the two ends of the outer tube 101 (there is a certain distance between the support plate 104 and the corresponding end side of the outer tube 101); the support plate 104 is coaxially fixedly installed on the inner tube 102, and each support plate 104 is connected to the corresponding end side of the outer tube 101 through a connecting rod; a plurality of air-permeable grooves 1021 are provided on the inner tube 102.

[0035] like Figure 2-Figure 3 and Figure 8-Figure 16 As shown, the moisture-proof mechanism 2 includes a circular frame 201, a mesh box 202, a breathable frame 203, an impeller 204, a lead screw 205, a strong magnetic slider 206, an opening and closing arc plate 207 and a limit rod 208;

[0036] The impeller 204 is coaxially rotatably mounted on the outer tube 101, and two gear rings 2041 are coaxially fixedly mounted on the impeller 204; a set of lead screws 205 are respectively arranged on both sides of the impeller 204, and each set of lead screws 205 includes two lead screws 205 parallel to the axis of the outer tube 101, and the thread directions of the two sets of lead screws 205 are the same; one end of the lead screw 205 is rotatably mounted on the outer side wall of the outer tube 101, and the other end is rotatably mounted on the support plate 104; a gear 2051 is coaxially fixedly mounted on each lead screw 205, and the gear 2051 is meshed with the gear ring 2041 on the same side;

[0037] A strong magnetic slider 206 is threadedly mounted on each lead screw 205; two slide bars are arranged on the outer tube 101 corresponding to each strong magnetic slider 206, one end of the slide bar is fixedly mounted on the outer tube 101, and the other end is fixedly mounted on the support plate 104; the strong magnetic slider 206 is slidably mounted on the corresponding slide bar; a vent is arranged on the side wall of the outer tube 101 between the two lead screws 205 in the same group, and an opening and closing arc plate 207 is slidably mounted on the vent and elastically mounted by a compression spring; a toggle rod 2061 is fixedly mounted on the strong magnetic slider 206, and when the strong magnetic slider 206 moves along the lead screw 205, the toggle rod 2061 can open the opening and closing arc plate 207;

[0038] A circular frame 201 and a breathable frame 203 are respectively provided on both sides of the impeller 204;

[0039] The circular frame 201 is located between the inner tube 102 and the outer tube 101, and is coaxially slidably installed on the inner tube 102; two strong magnets 2014 are fixedly installed on each circular frame 201 corresponding to the two strong magnetic sliders 206 on the same side, and the strong magnets 2014 and the corresponding strong magnetic sliders 206 are mutually adsorbed, so that the strong magnetic sliders 206 can drive the corresponding circular frame 201 to slide; six placement grooves are evenly distributed along the circumference of the circular frame 201 for placing the gauze box 202; push rods 2013 fixedly installed on the circular frame 201 are provided on both sides of each placement groove, and the push rods 2013 are located on the circular frame 201. The outer side of the frame 201 is parallel to the axis of the circular frame 201; a closing plate 1 2011 is fixedly installed on the inner side of the circular frame 201 through a fixing rod, and a closing plate 2012 is slidably installed on the fixing rod between the circular frame 201 and the closing plate 1 2011, and the closing plate 2012 is elastically connected to the closing plate 1 2011 through a compression spring; through holes are provided on the closing plate 1 2011 and the closing plate 2 2012, and the through holes on the closing plate 1 2011 and the closing plate 2 2012 are staggered, and when the closing plate 1 2011 and the closing plate 2 2012 are close together, the through holes thereon are all closed;

[0040] Activated carbon is placed in the gauze box 202;

[0041] A plurality of limiting rods 208 are provided between the connecting rib 103 and the connecting plate 105, and the two ends of the limiting rods 208 are respectively fixedly installed on the connecting rib 103 and the connecting plate 105, and the rod body passes through the supporting plate 104 and the circular ring frame 201; the limiting rod 208 is divided into two sections, a thick rod and a thin rod, the thick rod is on the outside, and the thin rod is on the inside, and the junction of the thick rod and the thin rod is located on the inner side of the opening and closing arc plate 207, and the second closing plate 2012 is slidably installed on the thin rod; when the circular ring frame 201 moves outward and passes through the junction of the thick rod and the thin rod, the thick rod cannot pass through the second closing plate 2012, so the inner end of the thick rod will push the second closing plate 2012, so that the second closing plate 2012 is close to the first closing plate 2011;

[0042] The air-permeable frame 203 is fixedly mounted on the end side of the outer tube 101; a plurality of sleeves are evenly and fixedly mounted on the air-permeable frame 203 along the circumference, the sleeves are sleeved on the thick rod of the limit rod 208, and the sleeves are fixedly mounted on the support plate 104 through the support plate 104; a vent 2031 is provided on the air-permeable frame 203 corresponding to the gauze box 202 on the circular frame 201, and a push rod hole is provided corresponding to the push rod 2013 on the circular frame 201; an opening and closing plate 2032 is slidably provided on the air-permeable frame 203, and an opening and closing plate 2032 is provided on the air-permeable frame 203. The plate 2032 is slidably mounted on the sleeve, and the opening and closing plate 2032 is located on the inner side of the support plate 104 and is elastically connected to the support plate 104 through a compression spring. Under the action of the compression spring, the opening and closing plate 2032 will close the vent 2031, thereby closing the space between the outer tube 101 and the inner tube 102; when the annular frame 201 moves outward to the air-permeable frame 203, the push rod 2013 extends into the push rod hole and pushes the opening and closing plate 2032 to open the vent 2031.

[0043] The working principle of this embodiment is as follows:

[0044] Adjacent tube bodies 1 are connected together by connecting plates 105, and the tube bodies 1 are set up at the work site; the cable is inserted into the inner tube 102; the moisture condensed from the heat emitted by the cable enters the space between the inner tube 102 and the outer tube 101 through the air permeable groove 1021, and the activated carbon in the gauze box 202 absorbs the moisture between the inner tube 102 and the outer tube 101;

[0045] The impeller 204 rotates with the wind, driving the gear ring 2041 to rotate, the gear ring 2041 drives the gear 2051 to rotate, the gear 2051 drives the lead screw 205 to rotate, the strong magnetic slider 206 slides, driving the circular frame 201 to move; the mesh box 202 on the circular frame 201 moves with the circular frame 201;

[0046] When the strong magnetic slider 206 moves to the opening and closing arc plate 207, the toggle rod 2061 will open the opening and closing arc plate 207, and the closing plate 2012 is pushed by the thick rod end of the limit rod 208, and the closing plate 1 2011 and the closing plate 2012 are tightly pressed together, dividing the space between the inner tube 102 and the outer tube 101 into two parts, the inner part remains closed, and the outer part is connected to the outside through the air vent. At this time, the gauze box 202 is located outside, so that the gauze box 202 can contact with the outside, so that the moisture in the activated carbon evaporates and the activated carbon is regenerated; at the same time, the gauze box 202 is connected with the vent 2031 of the air permeable frame 203, and the push rod 2013 passes through the push rod hole to push the opening and closing plate 2032, so that the vent 2031 is connected with the outside, thereby increasing the contact area between the gauze box 202 and the outside, and improving the regeneration efficiency of the activated carbon;

[0047] Since the threads of the lead screws 205 on both sides of the impeller 204 have the same direction, when the impeller 204 rotates, the circular ring frames 201 on both sides will move in the same direction, one of which moves toward the inside of the tube body 1 to allow the activated carbon in the gauze box 202 to absorb moisture, and the other moves toward the outside of the tube body 1 to regenerate the activated carbon in the gauze box 202, thereby ensuring that no matter what the wind direction is, there is always activated carbon to absorb moisture between the outer tube 101 and the inner tube 102.

Claims

1. A moisture-proof MPP cable protection tube, characterized in that: It comprises a tube body and a moisture-proof mechanism; the tube body comprises an outer tube, an inner tube arranged inside the outer tube, and a connecting rib arranged between the outer tube and the inner tube; the outer tube is provided with a vent; the inner tube is provided with a vent groove; The moisture-proof mechanism includes an impeller rotatably mounted on the outer tube, a strong magnetic slider slidably mounted on the outer tube, a linkage assembly linking the impeller and the strong magnetic slider, an arc-shaped opening and closing plate slidably and elastically mounted on the air vent of the outer tube and intermittently moved by the strong magnetic slider, a circular ring frame slidably mounted on the inner tube, a gauze box arranged on the circular ring frame, a ventilation frame fixedly mounted on the end side of the outer tube, and a limit rod arranged between the outer tube and the inner tube; The mesh box is filled with moisture-proof material; A strong magnet that is attracted to the strong magnetic slider is fixedly installed on the circular ring frame; a closing plate 1 is fixedly installed on the circular ring frame, and a closing plate 2 that is intermittently pushed by a limiting rod is slidably and elastically installed; both the closing plate 1 and the closing plate 2 are provided with through holes, and the through holes on the closing plate 1 and the closing plate 2 are staggered; a vent is provided on the air-permeable frame corresponding to the gauze box; an opening and closing plate is slidably and elastically installed on the air-permeable frame, and a push rod that intermittently pushes the opening and closing plate is fixedly installed on the circular ring frame.

2. According to claim 1, a moisture-proof MPP cable protection tube is characterized in that: The linkage assembly comprises a gear ring coaxially fixedly mounted on the impeller, a lead screw rotatably mounted on the outer tube and threadedly connected to the strong magnetic slider, and a gear coaxially fixedly mounted on the lead screw and meshing with the gear ring.

3. According to claim 1, a moisture-proof MPP cable protection tube is characterized in that: A toggle rod for intermittently toggling the arc-shaped opening and closing plate is fixedly mounted on the strong magnetic sliding block.

4. According to claim 1, a moisture-proof MPP cable protection tube is characterized in that: The limiting rod comprises two sections, a thick rod and a thin rod, and the junction of the thick rod and the thin rod is located on the inner side of the opening and closing arc plate; the second closing plate is slidably mounted on the thin rod, and the end of the thick rod intermittently pushes the second closing plate.

5. The moisture-proof MPP cable protection tube according to claim 1, characterized in that: A push rod hole is provided on the air-permeable frame corresponding to the push rod.

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