A rodent-proof cable

Abstract

This divisional application provides an insect and rodent-proof cable. It includes an outer tube, an inner tube, a cable body, and an insect and rodent-proof unit. The inner tube is disposed within the outer tube, and an inner tube cavity is formed within the inner tube. The insect and rodent-proof unit is located within the inner tube cavity and is fixedly installed on the outer wall of the cable body. The insect and rodent-proof unit includes several sets of resin storage strips and several sets of first secretion strips. The resin storage strips are arranged in a circular array on the inner wall of the inner tube, and the other side wall of the resin storage strips is fixedly installed on the outer wall of the cable body. The first secretion strips are evenly distributed in the gaps between the resin storage strips, and the first secretion strips between adjacent sets of resin storage strips are arranged at equal intervals. The insect and rodent-proof cable of this invention uses odors emitted by the first and second secretion strips to prevent insects from gnawing on and damaging the cable.

Description

[0001] This application is a divisional application. The original application has the application number "202111554498.2" and the application date is "December 17, 2021". The invention title is "An anti-seismic cable and its anti-seismic method". Technical Field

[0002] This invention belongs to the field of cable technology, and specifically relates to an insect- and rodent-proof cable. Background Technology

[0003] Cables are usually buried underground or erected in the air via a base. In order to enable them to be used for a long time, cables need to be waterproof, corrosion-resistant, insect and rodent-proof, and earthquake-resistant. However, existing cable technology is relatively lacking in these aspects. Summary of the Invention

[0004] To address the above problems, the present invention provides an insect and rodent-proof cable, which includes an outer tube, an inner tube, a cable body, and an insect and rodent-proof unit.

[0005] The inner tube is disposed within the outer tube, and an inner tube cavity is formed within the inner tube. The insect and rodent-proof unit is located within the inner tube cavity and is fixedly installed on the outer wall of the cable body. The insect and rodent-proof unit includes several sets of resin storage strips and several sets of first secretion strips. The several sets of resin storage strips are arranged in a circular array on the inner wall of the inner tube, and the other side wall of the several sets of resin storage strips is fixedly installed on the outer wall of the cable body. The several sets of first secretion strips are evenly distributed in the gaps between the sets of resin storage strips, and the first secretion strips between adjacent sets of resin storage strips are arranged at equal intervals.

[0006] In this invention, both ends of the first secretory strip are connected to the cavities of the two corresponding sets of resin storage strips, and several sets of first secretory openings are evenly distributed on the outer wall of the first secretory strip.

[0007] Among them, several groups of second secretory strips are arranged at equal intervals between two adjacent groups of first secretory strips. The two ends of the second secretory strips are respectively connected to the cavities of the two adjacent groups of first secretory strips, and several groups of second secretory openings are evenly distributed on the outer wall of the second secretory strip.

[0008] Furthermore, the combination of several sets of first secretory strips and several sets of second secretory strips between two adjacent sets of resin storage strips can form a mesh-like structure.

[0009] In this invention, each set of resin storage strips is provided with a resin filling port, and the resin storage strips are filled with expanding resin. Under normal conditions, the heat dissipation function of the cable body is achieved through the gaps between each set of first secretion strips and each set of second secretion strips.

[0010] In this invention, the outer wall of the inner tube is also provided with an anti-bending unit. The anti-bending unit includes several sets of first anti-vibration strips. The several sets of first anti-vibration strips are all located in the cavity of the outer tube, and the several sets of first anti-vibration strips are distributed in a ring array on the outer wall of the inner tube. The side of the first anti-vibration strip away from the outer wall of the inner tube is installed on the inner wall of the outer tube cavity.

[0011] Furthermore, the first anti-seismic strip has a first anti-seismic strip cavity, and several groups of filling particles are distributed in the first anti-seismic strip cavity. The total volume of the several groups of filling particles is less than the maximum volume of the first anti-seismic strip cavity.

[0012] Furthermore, the anti-bending unit also includes several sets of second anti-vibration strips; the several sets of second anti-vibration strips are evenly distributed in the gaps between each set of first anti-vibration strips, and the second anti-vibration strips between two adjacent sets of first anti-vibration strips are arranged at equal intervals; both ends of the second anti-vibration strip are connected to the inner cavities of the two corresponding sets of first anti-vibration strips.

[0013] The beneficial effects of this invention are as follows: The insect- and rodent-repellent cable of this invention secretes expanding resin through several groups of equally spaced first and second secretory strips, and utilizes the high adhesiveness of the expanding resin to form a resin mesh with a grid-like structure. This not only achieves the effect of preventing insects and rodents from gnawing using its scent, but also, when water enters the inner tube or the humidity is too high, the expanding resin's water-absorbing and expanding properties seal the gaps in the resin mesh, thereby achieving a waterproof effect.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an insect and rodent-proof cable according to an embodiment of the present invention is shown;

[0017] Figure 2 A schematic cross-sectional view of the end face of the outer tube body according to an embodiment of the present invention is shown;

[0018] Figure 3A schematic diagram of the anti-folding unit according to an embodiment of the present invention is shown;

[0019] Figure 4 A schematic cross-sectional view of the end face of the anti-folding unit according to an embodiment of the present invention is shown;

[0020] Figure 5 A right-side cross-sectional view of the anti-folding unit according to an embodiment of the present invention is shown;

[0021] Figure 6 A schematic cross-sectional view of the end face of the insect and rodent-proof unit according to an embodiment of the present invention is shown;

[0022] Figure 7 A schematic diagram of the structure of the insect and rodent control unit according to an embodiment of the present invention is shown;

[0023] Figure 8 An embodiment of the present invention is shown. Figure 7 Enlarged diagram of the area within circle A;

[0024] Figure 9 A schematic cross-sectional view of the end face of a seismic-resistant unit according to an embodiment of the present invention is shown;

[0025] Figure 10 A cross-sectional schematic diagram of an anti-seismic mounting block according to an embodiment of the present invention is shown.

[0026] In the diagram: 100, outer tube body; 110, outer tube cavity; 200, inner tube body; 210, inner tube cavity; 300, cable body; 400, anti-bending unit; 410, first anti-vibration strip; 420, inner cavity of the first anti-vibration strip; 430, filling particles; 440, second anti-vibration strip; 500, insect and rodent protection unit; 510, resin storage strip; 511, resin filling port; 520, first secretion strip; 521, first secretion port; 530, second... 540. Secretory strip; 600. Second secretory port; 610. Seismic unit; 620. Outer retaining ring; 621. Seismic mounting block; 630. Mounting block outlet; 640. First hinge plate; 650. First pestle rod; 660. Spring fixing plate; 661. Second spring; 662. Second pestle rod; 670. Outer tube retaining block; 680. Retaining ring protrusion; 681. Protrusion extension rod; 682. Protrusion positioning rod; 683. Threaded plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Cables are usually buried underground or erected in the air via a base. In order to enable them to be used for a long time, cables need to be waterproof, corrosion-resistant, insect and rodent-proof, and earthquake-resistant.

[0029] For cables that are laid out, the installation method is usually to place them directly on the support base. When the support base is subjected to external vibration, the resulting external force will act directly on the cable, causing damage to the cable.

[0030] This invention provides an insect and rodent-proof cable. It includes an outer tube 100, an inner tube 200, a cable body 300, an anti-bending unit 400, an insect and rodent-proof unit 500, and a shock-resistant unit 600. For example,... Figure 1 and Figure 2 As shown, the outer tube 100 has an outer tube cavity 110, and the inner tube 200 is located in the outer tube cavity 110, with the central axis of the inner tube 200 coinciding with the central axis of the outer tube 100. The inner tube 200 has an inner tube cavity 210.

[0031] The cable body 300 is located in the inner tube cavity 210, and the central axis of the cable body 300 coincides with the central axis of the inner tube 200.

[0032] The anti-bending unit 400 is located in the outer tube cavity 110, and the inner and outer sides of the anti-bending unit 400 are respectively fixedly installed on the outer tube body 100 and the inner tube body 200. The anti-bending unit 400 is used to prevent the cable body 300 from being bent by external force.

[0033] The insect and rodent-proof unit 500 is located in the inner tube cavity 210 and is fixedly installed on the outer wall of the cable body 300. The insect and rodent-proof unit 500 is used to prevent mosquitoes and other insects from gnawing on the cable body 300.

[0034] The anti-vibration unit 600 is movably snapped onto the outer wall of the outer tube 100. The shell of the anti-vibration unit 600 has a circular structure, and the central axis of the shell of the anti-vibration unit 600 coincides with the central axis of the outer tube 100. The anti-vibration unit 600 is used to prevent the cable body 300 from being damaged by external vibration.

[0035] The anti-bending unit 400 includes several sets of first anti-vibration strips 410 and several sets of second anti-vibration strips 440. For example, as shown... Figure 3 , Figure 4 and Figure 5 As shown, several groups of first anti-vibration strips 410 are located within the outer tube cavity 110, and are arranged in a circular array on the outer wall of the inner tube 200 with the central axis of the outer tube 100 as the center. The side of each first anti-vibration strip 410 away from the outer wall of the inner tube 200 is fixedly installed on the inner wall of the outer tube cavity 110. Each first anti-vibration strip 410 has a first anti-vibration strip cavity 420, within which several groups of filling particles 430 are distributed. The material of the filling particles 430 is, but is not limited to, silicone. The total volume of the several groups of filling particles 430 is less than the maximum volume of the first anti-vibration strip cavity 420. Several groups of second anti-vibration strips 440 are evenly distributed in the gaps between each group of first anti-vibration strips 410, and the second anti-vibration strips 440 between adjacent groups of first anti-vibration strips 410 are arranged at equal intervals. Both ends of the second seismic strip 440 are connected to the inner cavities 420 of the two corresponding sets of first seismic strips.

[0036] Several sets of first anti-vibration strips 410 are distributed in a ring array on the surface of the inner tube 200, and several sets of filling particles 430 are provided in the inner cavity 420 of each set of first anti-vibration strips. The total volume of the filling particles 430 in the inner cavity 420 of each set of first anti-vibration strips is less than the maximum volume of the inner cavity 420 of the first anti-vibration strip. When the outer tube 100 is subjected to external force, each set of first anti-vibration strips 410 deforms due to the tensile force, so that the filling particles in the inner cavity 420 of each set of first anti-vibration strips are filled into the inner cavity 420 of the first anti-vibration strip on the compressed side through the second anti-vibration strip 440. This increases the total amount of material on the filled side, thereby increasing the bending resistance of the filled side, reducing the risk of breakage and cracking of the cable body 300 on the compressed side, and thus improving the anti-bending effect of the cable body 300.

[0037] The insect and rodent-proof unit 500 includes several sets of resin storage strips 510 and several sets of first secretion strips 520. For example, as shown... Figure 6 , Figure 7 and Figure 8As shown, several sets of resin storage strips 510 are arranged in a circular array on the inner wall of the inner tube cavity 210, with one side wall centered on the central axis of the cable body 300. The other side wall of each set of resin storage strips 510 is fixedly installed on the outer wall of the cable body 300. Each set of resin storage strips 510 has a resin filling port 511. Several sets of first secretion strips 520 are evenly distributed in the gaps between the sets of resin storage strips 510, and the first secretion strips 520 between adjacent sets of resin storage strips 510 are arranged at equal intervals. Both ends of each first secretion strip 520 are connected to the cavities of its corresponding two sets of resin storage strips 510, and several sets of first secretion ports 521 are evenly distributed on the outer wall of each first secretion strip 520. Several sets of second secretory strips 530 are arranged at equal intervals between two adjacent sets of first secretory strips 520. The two ends of each second secretory strip 530 are connected to the cavities of the two adjacent sets of first secretory strips 520, and several sets of second secretory openings 540 are evenly distributed on the outer wall of each second secretory strip 530. The combinations of the several sets of first secretory strips 520 and several sets of second secretory strips 530 between two adjacent sets of resin storage strips 510 can form a mesh-like structure.

[0038] When the surrounding humidity is normal, the cable body 300 dissipates heat through the gaps between the first secretion strips 520 and the second secretion strips 530. Since the cavities of the resin storage strip 510, the first secretion strips 520, and the second secretion strips 530 are interconnected, the expanding resin in the resin storage strip 510 can be evenly transferred to the adjacent first secretion strips 520 and second secretion strips 530, and then discharged through the evenly distributed first secretion ports 521 and second secretion ports 531. The discharged expanding resin also adheres to each other, forming a mesh-like structure, through the grid-like arrangement of the first secretion strips 520 and the second secretion strips 530. The odor emitted by this structure prevents insects from gnawing on the cable. When flooding occurs and the outer tube 100 is submerged, the expanding resin's property of expanding upon contact with water seals the gaps in the resin mesh, achieving a waterproof effect. The main component of the expanding resin is sodium polyacrylate (C3H3NaO2).

[0039] At the same time, when the external force is too great and causes the outer tube 100 and the inner tube 200, as well as a set of resin storage strips 510, the first secretion strip 520 and the second secretion strip 530 corresponding to the extrusion side to break, the expanding resin in the set of resin storage strips 510, the first secretion strip 520 and the second secretion strip 530 will gush out from the break point, and after absorbing the moisture in the soil or air, it will quickly expand and solidify, thereby quickly sealing the break point and realizing the function of self-healing of the break.

[0040] The seismic-resistant unit 600 includes an outer retaining ring 610 and several sets of seismic-resistant mounting blocks 620. For example, Figure 9 and Figure 10 As shown, the outer retaining ring 610 has a circular structure and is sleeved on the outside of the outer tube 100, with its central axis coinciding with the central axis of the outer tube 100. Several sets of seismic-resistant mounting blocks 620 are arranged in a circular array on the inner wall of the outer retaining ring 610, centered on the central axis of the outer tube 100. An mounting block outlet 621 is provided on the side wall of the seismic-resistant mounting block 620 closest to the central axis of the outer tube 100. A first hinge plate 630 is hinged to the inner wall of the seismic-resistant mounting block 620 away from the mounting block outlet 621, and a first spring 640 is fixedly mounted on the first hinge plate 630. A first rod 650 is fixedly mounted on the other end of the first spring 640, and the other end of the first rod 650 passes through the mounting block outlet 621 to the outside of the seismic-resistant mounting block 620, where an outer tube retaining block 670 is fixedly mounted. The inner diameter of the mounting block outlet 621 is larger than the outer diameter of the first pestle 650. The outer tube clamp 670 is fixedly installed on the outer wall of the outer tube body 100.

[0041] Two sets of spring fixing plates 660 are symmetrically installed on the inner walls of the seismic mounting block 620 and the mounting block outlet 621 on both sides. A second spring 661 is fixedly installed on the spring fixing plate 660. A second pestle 662 is fixedly installed on the other end of the second spring 661, and the other end of the second pestle 662 is hinged to the first pestle 650.

[0042] The outer retaining ring 610 has several sets of retaining ring protrusions 680 arranged in a ring array on its outer wall. A protrusion extension rod 681 is fixedly installed on the side wall of each protrusion 680 away from the outer retaining ring 610. Several sets of protrusion positioning rods 682 are arranged in a ring array at the edge of the other end face of the protrusion extension rod 681. A threaded plate 683 is provided on the side of the protrusion extension rod 681 away from the outer retaining ring 610. The diameter of the threaded plate 683 is larger than the diameter of the protrusion extension rod 681, and the central axis of the threaded plate 683 coincides with the protrusion extension rod 681. The protrusion positioning rods 682 are arranged in a ring array around the perimeter of the threaded plate 683 at the ends away from the protrusion extension rod 681, and the protrusion positioning rods 682 and the threaded plate 683 are movably installed together.

[0043] When it is necessary to install the outer pipe body 100, simply screw several sets of threaded plates 683 distributed in a ring array onto the four inner walls of the mounting base. The threaded plates 683 and the protrusion positioning rods 682 are movably installed; therefore, when the space at the installation point is too narrow, the threaded plates 683 can be disassembled, and the installation can be directly performed using the protrusion positioning rods 682. This provides a variety of installation methods to meet different installation conditions.

[0044] When vibration occurs at the installation point, the external force is first transmitted to the threaded plate 683, then to the outer retaining ring 610, and finally to each set of anti-vibration mounting blocks 620. Upon receiving the external force, the anti-vibration mounting block 620 transmits it to the first hinge plate 630 and the first spring 640 connected within its inner cavity. The first spring 640 then cancels out the vertical force. The external force is then absorbed by the two sets of second rods 662 hinged to both sides of the first rod 650 and transmitted to the second spring 661, which then cancels out the horizontal force, thus reducing the external force on the outer tube body 100 connected to the first rod 650 and the outer tube retaining block 670. Finally, the anti-bending unit 400 further absorbs the remaining external force, preventing damage to the cable body 300 due to external vibration.

[0045] First, the outer tube 100 is installed using several sets of threaded plates 683 arranged in a ring array, eliminating the need for direct contact between the outer tube 100 and the installation point, thus reducing the chance of corrosion. Furthermore, the threaded plates 683 and the protrusion positioning rods 682 are in a movable installation relationship, allowing the seismic unit 600 to be installed normally in various environments, improving its compatibility. When the outer tube 100 is subjected to vibration, the seismic mounting blocks 620 arranged in a ring array on the inner wall of the outer retaining ring 610 absorb the external force, and the first spring 640 and two sets of second springs 661 inside absorb the external force simultaneously from both vertical and horizontal directions. Regardless of the location of the vibration source on the outer tube 100, the seismic unit 600 can provide overall protection for the outer tube 100, making the seismic resistance more three-dimensional and thus improving the seismic resistance effect.

[0046] Based on the aforementioned insect- and rodent-proof cable, this invention also proposes a shock-resistant method for the insect- and rodent-proof cable. The shock-resistant method includes:

[0047] The external force is evenly absorbed by several sets of threaded plates distributed in a ring array and transmitted to the corresponding sets of protrusion extension rods.

[0048] Similarly, when the protrusion extension rods distributed in the same ring array receive external force, they will transfer the external force to the outer retaining ring, and then transfer the external force to each group of seismic mounting blocks through the outer retaining ring.

[0049] When the seismic mounting block receives an external force, it will continue to transmit the external force to the first hinge plate and the first spring connected in its inner cavity, and then the external force in the vertical direction will be canceled by the first spring.

[0050] The external force is absorbed by two sets of second rods hinged to both sides of the first rod and transmitted to the second spring. The second spring then cancels out the external force in the horizontal direction, thereby reducing the external force on the outer tube body connected to the first rod and the outer tube clamp.

[0051] The outer tube absorbs the remaining external force after the seismic unit is processed and transfers it to the first seismic strips of each group;

[0052] When each group of first seismic strips is subjected to external force, it will deform due to tension, causing the filling particles in the inner cavity of each group of first seismic strips to enter into the corresponding group of second seismic strips.

[0053] After the filling particles enter the second anti-vibration strips of each group, they will continue to move towards the squeezed side due to external force and fill the inner cavity of the first anti-vibration strip on the squeezed side; thus offsetting the remaining external force, the anti-vibration work of the insect and rodent-proof cable is completed on the outer side.

[0054] Specifically, when the total amount of material in the inner cavity of the first anti-vibration strip on the filled side increases, the bending resistance on the filled side increases, reducing the risk of the cable body breaking and cracking on the squeezed side, thereby improving the anti-bending effect of the cable body.

[0055] External forces are absorbed simultaneously by several groups of seismic-resistant mounting blocks distributed in a ring array. Each group of seismic-resistant mounting blocks has a first spring and a second spring that can cancel out external forces from multiple directions, both vertical and horizontal. This makes the seismic resistance of the seismic unit more three-dimensional, thereby improving the seismic resistance quality and extending the service life of the cable body.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rodent- and insect-proof cable, characterized in that, It includes an outer tube (100), an inner tube (200), a cable body (300), and an insect and rodent-proof unit (500); The inner tube (200) is disposed inside the outer tube (100), and an inner tube cavity (210) is formed in the inner tube (200). The insect and rodent-proof unit (500) is located in the inner tube cavity (210), and the insect and rodent-proof unit (500) is fixedly installed on the outer wall of the cable body (300). The insect and rodent-proof unit (500) includes several sets of resin storage strips (510) and several sets of first secretion strips (520); the several sets of resin storage strips (510) The resin storage strips (510) are arranged in a ring array on the inner wall of the inner tube (200), and the other side wall of the resin storage strips (510) is fixedly installed on the outer wall of the cable body (300); the first secretion strips (520) are evenly distributed in the gaps between the resin storage strips (510), and the first secretion strips (520) between two adjacent sets of resin storage strips (510) are arranged at equal intervals. Each set of resin storage strips (510) is provided with a resin filling port (511). Both ends of the first secretory strip (520) are connected to the cavities of the two sets of resin storage strips (510) corresponding to it, and several sets of first secretory openings (521) are evenly distributed on the outer wall of the first secretory strip (520). Several sets of second secretory strips (530) are arranged at equal intervals between two adjacent sets of first secretory strips (520). The two ends of the second secretory strips (530) are respectively connected to the cavities of the two adjacent sets of first secretory strips (520), and several sets of second secretory openings (540) are evenly distributed on the outer wall of the second secretory strips (530). A combination of several sets of first secretion strips (520) and several sets of second secretion strips (530) between two adjacent sets of resin storage strips (510) can form a mesh structure. The expanded resin in the resin storage strip (510) can be evenly transferred to each of the adjacent sets of first secretion strips (520) and second secretion strips (530). The expanded resin can be discharged through each set of first secretion ports (521) and second secretion ports (531). The discharged expanded resin can also stick together to form a mesh structure.

2. The insect and rodent-proof cable according to claim 1, characterized in that: The resin storage strip (510) contains expanding resin. Under normal conditions, the heat dissipation function of the cable body (300) is achieved through the gaps between each group of first secretion strips (520) and each group of second secretion strips (530).

3. The insect and rodent-proof cable according to claim 1, characterized in that: The outer wall of the inner tube (200) is also provided with an anti-bending unit (400). The anti-bending unit (400) includes several sets of first anti-vibration strips (410). The several sets of first anti-vibration strips (410) are all located in the cavity of the outer tube (100), and the several sets of first anti-vibration strips (410) are arranged in a ring array on the outer wall of the inner tube (200). The side of the first anti-vibration strip (410) away from the outer wall of the inner tube (200) is installed on the inner wall of the outer tube cavity (110).

4. The insect and rodent-proof cable according to claim 3, characterized in that: The first anti-seismic strip (410) has a first anti-seismic strip cavity (420) inside, and a number of groups of filling particles (430) are distributed in the first anti-seismic strip cavity (420). The total volume of the number of groups of filling particles (430) is less than the maximum volume of the first anti-seismic strip cavity (420).

5. The insect and rodent-proof cable according to claim 4, characterized in that: The anti-bending unit (400) also includes several sets of second anti-seismic strips (440); the several sets of second anti-seismic strips (440) are evenly distributed in the gaps between each set of first anti-seismic strips (410), and the second anti-seismic strips (440) between two adjacent sets of first anti-seismic strips (410) are arranged at equal intervals; both ends of the second anti-seismic strip (440) are connected to the inner cavities (420) of the two sets of first anti-seismic strips corresponding to it.

Images