A kind of impact-resistant power cable protection tube

Abstract

The present invention relates to the field of cable protection tubes, and in particular to an impact-resistant power cable protection tube, comprising an outer tube body, an inner circular tube, a partition module and a supporting arc plate, wherein the outer tube body is provided with a longitudinal notch, the inner circular tube is located inside the outer tube body, and the inner circular tube has the same axis as the outer tube body, a plurality of partition modules are installed on the outer annular surface of the inner circular tube, and a supporting arc plate is installed on the end of each partition module away from the inner circular tube, and the outer arc surface of the supporting arc plate is in contact with the inner wall of the outer tube body; when an external force impacts the outer tube body, the impact vibration of the outer tube body will be transmitted to the movable partition and the supporting arc plate, and at this time, the impact vibration at the movable partition will be absorbed by the damping telescopic rod to reduce the damage of the external impact to the partition module and the influence on the internal cable.

Description

Technical Field

[0001] The invention relates to the field of cable protection tubes, and in particular to an impact-resistant power cable protection tube. Background Art

[0002] Cable protection tube refers to a protective tube with a certain mechanical strength that is laid on the outer layer of the cable to prevent the cable from being damaged.

[0003] For example, Chinese patent CN219592055U discloses a CPVC cable protection tube, which proposes to set a fixed partition structure so as to facilitate the installation of multiple cables inside the fixed partition structure; and Chinese patent CN109193502A discloses a protection tube with the function of separating and managing cables, which enables the protection tube to be quickly installed on the cable by designing an outer sleeve with a notch, but both of the above have the following defects:

[0004] 1. The internal partitioned skeleton structure is adopted. When the external tube body is impacted, the internal partitioned skeleton structure is easily compressed and damaged, which not only shortens the service life of the tube body, but also causes damage to the internal cables.

[0005] 2. When transporting the protective tube, the cavity inside the protective tube will take up more space, resulting in higher transportation costs. Summary of the invention

[0006] In order to overcome the shortcomings of the existing separated protection tubes, such as poor impact resistance and large space occupied during transportation, the present invention provides an impact-resistant power cable protection tube.

[0007] The technical solution of the present invention is: an impact-resistant power cable protection tube, comprising an outer tube body, an inner tube, a partition module and a supporting arc plate, the outer tube body is provided with a longitudinal notch, the inner tube is located in the outer tube body, and the inner tube and the outer tube body have the same axis, a plurality of partition modules are installed on the outer annular surface of the inner tube, and a supporting arc plate is installed on the end of each partition module away from the inner tube, the outer arc surface of the supporting arc plate is in contact with the inner wall of the outer tube body, and all the partition modules divide the annular space between the inner tube and the outer tube body into a plurality of sectors The fan-shaped space is used to accommodate cables; the partition module is composed of a fixed partition installed on the inner circular tube, a movable partition connected to the supporting arc plate and a damping telescopic rod, the movable partition slides in the fixed partition, and the damping telescopic rod is installed between the movable partition and the fixed partition. When an external force impacts the outer tube body, the impact vibration of the outer tube body will be transmitted to the movable partition and the supporting arc plate. At this time, the impact vibration at the movable partition is absorbed by the damping telescopic rod to reduce the damage to the partition module caused by the external impact and the influence on the internal cables.

[0008] As a preferred technical solution of the present invention, the outer tube body is composed of two arc plates that are movably connected to each other. Two fixing bolts are installed and penetrated at the movable connection of the two arc plates. When the fixing bolts are removed, the two arc plates can rotate freely. A locking structure is provided at the sliding position of the movable partition plate and the fixed partition plate. The locking structure keeps the damping telescopic rod in a compressed state, so that the movable partition plate remains retracted into the fixed partition plate.

[0009] As a preferred technical solution of the present invention, the fixed partition plate is provided with a slot, and the movable partition plate is installed with a telescopic spring bead. The slot and the telescopic spring bead cooperate to form the locking structure. When the movable partition plate is retracted into the fixed partition plate, the telescopic spring bead is inserted into the slot for locking.

[0010] As a preferred technical solution of the present invention, one of the supporting arc plates is filled in the longitudinal notch of the outer tube body after assembly.

[0011] As a preferred technical solution of the present invention, the longitudinal notch of the outer tube body is provided with an inclined surface, so that when the outer tube body rotates, the inclined surface can assist in pressing down the supporting arc plate filled in the longitudinal notch.

[0012] As a preferred technical solution of the present invention, except for the supporting arc plate filled in the longitudinal notch of the outer tube body, the outer arc surfaces of the other supporting arc plates are all provided with a limiting convex strip, and the inner wall of the outer tube body is provided with a limiting groove, and the limiting convex strip is located in the limiting groove.

[0013] As a preferred technical solution of the present invention, a through groove 2 is opened on one side of the fixed partition, a through groove 3 is opened on the bottom of the fixed partition, and a plurality of through grooves 1 are opened on the inner circular tube. The through groove 2, the inner cavity of the fixed partition, the through groove 3 and the through groove 1 together form a heat dissipation channel, and the heat dissipation channel connects the fan-shaped space accommodating the cable with the inner circular tube.

[0014] As a preferred technical solution of the present invention, a partition plate is installed in the inner circular tube, and the partition plate divides the interior of the inner circular tube into a plurality of heat dissipation spaces, and each of the heat dissipation spaces corresponds to one of the through grooves.

[0015] As a preferred technical solution of the present invention, a heat insulation layer is provided on the surface of the partition plate.

[0016] As a preferred technical solution of the present invention, when the movable partition is retracted into the fixed partition and locked, the movable partition covers the second through groove.

[0017] Beneficial effect: The present invention designs the partition module as a fixed partition and a movable partition with a damping telescopic rod. When an external force impacts the outer tube body, the impact vibration of the outer tube body will be transmitted to the movable partition and the supporting arc plate. At this time, the impact vibration at the movable partition will be absorbed by the damping telescopic rod to reduce the damage to the partition module and the impact on the internal cables caused by the external impact, thereby improving the impact resistance of the cable protection tube.

[0018] The present invention reduces the overall space occupied by the fixed partitions and the movable partitions by storing all the movable partitions in the fixed partitions and locking them, and the two arc plates that make up the outer tube body can also be opened and stacked, so that the internal space of the cable protection tube is effectively reduced, the space occupied by a single tube during transportation is reduced, and the transportation efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the impact-resistant power cable protection tube of the present invention;

[0020] Figure 2 Shown is an exploded view of the impact-resistant power cable protection tube of the present invention;

[0021] Figure 3 What is shown is a schematic diagram of the three-dimensional structure of the outer tube body of the present invention;

[0022] Figure 4 What is shown is a schematic diagram of the combined three-dimensional structure of the inner circular tube, the fixed partition and the movable partition of the present invention;

[0023] Figure 5 Shown is a cross-sectional view of a fixed partition of the present invention;

[0024] Figure 6 What is shown is the transformation state diagram of the outer tube body and the movable partition plate of the present invention.

[0025] Markings in the figure are: 1-outer tube body, 101-limiting groove, 2-inner round tube, 201-through groove one, 3-fixed partition, 301-clamping groove, 302-through groove two, 303-through groove three, 4-movable partition, 401-telescopic spring bead, 5-support arc plate, 501-limiting convex strip, 6-damping telescopic rod, 7-fixing bolt, 8-partition plate. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0027] Example 1

[0028] An impact-resistant power cable protection tube, such as Figure 1-Figure 6As shown, it includes an outer tube body 1, an inner tube 2, a baffle module and a supporting arc plate 5, the outer tube body 1 is provided with a longitudinal notch, the inner tube 2 is located inside the outer tube body 1, and the inner tube 2 and the outer tube body 1 have the same axis, six baffle modules are installed on the outer annular surface of the inner tube 2, and a supporting arc plate 5 is installed on the end of each baffle module away from the inner tube 2, the outer arc surface of the supporting arc plate 5 is in contact with the inner wall of the outer tube body 1, and all the baffle modules divide the annular space between the inner tube 2 and the outer tube body 1 into six fan-shaped spaces;

[0029] The partition module consists of a fixed partition 3 installed on the inner circular tube 2, a movable partition 4 connected to the supporting arc plate 5, and a damping telescopic rod 6. The movable partition 4 slides in the fixed partition 3, and the damping telescopic rod 6 is installed between the movable partition 4 and the fixed partition 3.

[0030] The outer tube body 1 is composed of two mutually hinged arc plates, and two fixing bolts 7 are installed and penetrated at the hinge of the two arc plates. A locking structure is provided at the sliding position of the movable partition plate 4 and the fixed partition plate 3.

[0031] A slot 301 is provided on the side of the fixed partition 3, and a telescopic spring bead 401 is installed on the side of the movable partition 4. The slot 301 and the telescopic spring bead 401 cooperate to form the locking structure. The fixing principle of the telescopic spring bead 401 is the same as the telescopic fixing principle of the umbrella handle.

[0032] Hereinafter, the impact-resistant power cable protection tube will be referred to as the cable protection tube.

[0033] In this embodiment, during assembly, the outer tube body 1 is sleeved on the outside of the six supporting arc plates 5, and the partition module formed by the fixed partition plate 3 and the movable partition plate 4 divides the annular space between the outer tube body 1 and the inner circular tube 2 into six sector-shaped spaces. When the cable needs to be placed in, the outer tube body 1 is rotated to align the longitudinal notch of the outer tube body 1 with one of the sector-shaped spaces to expose the sector-shaped space, and then the cable is placed in the sector-shaped space. Thereafter, the outer tube body 1 is rotated to expose the six sector-shaped spaces one by one and the cable is placed in, and finally the longitudinal notch of the outer tube body 1 is aligned with one of the supporting arc plates 5 to block the longitudinal notch of the outer tube body 1 and wrap the cable for protection. In this way, the cable protection tube can be directly sleeved on the cable without pulling the cable into the cable protection tube, thereby improving the convenience of installation. When inspecting the cable, the outer tube body 1 can also be rotated to expose the sector-shaped space where the cable to be inspected is located without removing the cable protection tube.

[0034] Furthermore, the partition module is designed as a fixed partition 3 and a movable partition 4 with a damping telescopic rod 6. When an external force impacts the outer tube body 1, the impact vibration of the outer tube body 1 will be transmitted to the movable partition 4 and the supporting arc plate 5. At this time, the impact vibration at the movable partition 4 is absorbed by the damping telescopic rod 6 to reduce the damage to the partition module and the impact on the internal cables caused by the external impact, thereby improving the impact resistance of the cable protection tube.

[0035] Furthermore, since the internal space of the cable protection tube occupies a large volume during transportation, when the cable protection tube is not assembled, a worker presses the movable partition 4 into the fixed partition 3, so that the telescopic spring bead 401 is locked in the slot 301. At this time, the damping telescopic rod 6 is in a compressed state. Figure 6 As shown, the fixing bolts 7 are temporarily not installed on the two arc plates constituting the outer tube body 1, so that the two arc plates are in a free rotation state at this time, so that the two arc plates can be opened, as shown in FIG. Figure 6 As shown, by putting all the movable partitions 4 into the fixed partitions 3 and locking them, the overall occupied space of the fixed partitions 3 and the movable partitions 4 is reduced, and the two arc plates constituting the outer tube body 1 can also be opened and stacked, so that the internal space of the cable protection tube is effectively reduced, and the occupied space of a single one during transportation is reduced, thereby improving the transportation efficiency;

[0036] After transporting to the assembly site, the worker only needs to press the telescopic spring bead 401, and under the rebound effect of the damping telescopic rod 6, the movable partition 4 automatically pops out from the fixed partition 3, and then the fixing bolt 7 is inserted and installed into the hinge position of the two arc plates constituting the outer tube body 1, so that the two arc plates cannot rotate freely, and the assembly is completed. Figure 1 Assembly state shown.

[0037] Furthermore, since the outer tube body 1 is protected on the outside, it is more susceptible to wear than the internal parts and needs to be replaced periodically. At this time, the outer tube body 1 can be opened and removed by simply removing the fixing bolts 7, which is convenient and quick.

[0038] It should be noted that all parts in this cable protection tube are made of insulating materials suitable for protecting cables.

[0039] Example 2

[0040] On the basis of Example 1, Figure 1-Figure 3 As shown, one of the supporting arc plates 5 is filled in the longitudinal notch of the outer tube body 1 after assembly.

[0041] The longitudinal notch of the outer tube body 1 is provided with an inclined surface, so that when the outer tube body 1 rotates, the inclined surface can assist in pressing down the supporting arc plate 5 filled in the longitudinal notch.

[0042] Except for the supporting arc plate 5 filling the longitudinal notch of the outer tube body 1, the outer arc surfaces of the other supporting arc plates 5 are all provided with a limiting convex strip 501, and the inner wall of the outer tube body 1 is provided with a limiting groove 101. The limiting convex strip 501 is located in the limiting groove 101. The rotation path of the outer tube body 1 is limited by the limiting convex strip 501, so that the outer tube body 1 will not be offset.

[0043] In this embodiment, since dust, impurities or dew may accumulate in the longitudinal notch of the outer tube body 1, which may aggravate the aging and corrosion of the outer tube body 1, one of the supporting arc plates 5 is designed to fill the longitudinal notch of the outer tube body 1. Figure 1 As shown, the outer arc surface of the support arc plate 5 at this position cooperates with the outer wall of the outer tube body 1 to form a complete arc surface, thereby reducing the residue of dust impurities or dew and improving the durability of the outer tube body 1. When the outer tube body 1 needs to be rotated, it is only necessary to press the support arc plate 5 at this position, and the longitudinal notch of the outer tube body 1 is provided with an inclined surface, so that when the outer tube body 1 rotates, the support arc plate 5 filling the longitudinal notch can be pressed down with the assistance of the inclined surface.

[0044] Example 3

[0045] On the basis of Example 2, Figure 1-Figure 5 As shown, a through groove 2 302 is provided on one side of the fixed partition 3, a through groove 3 303 is provided on the bottom of the fixed partition 3, and six through grooves 1 201 are provided on the inner circular tube 2. The through groove 2 302, the inner cavity of the fixed partition 3, the through groove 3 303 and the through groove 1 201 together form a heat dissipation channel, and the heat dissipation channel connects the fan-shaped space for accommodating the cable with the inner circular tube 2.

[0046] A partition plate 8 is installed inside the inner circular tube 2 , and the partition plate 8 divides the interior of the inner circular tube 2 into six heat dissipation spaces, each of which corresponds to one of the through grooves 201 .

[0047] The surface of the partition plate 8 is provided with a heat insulation layer.

[0048] When the movable partition plate 4 is received into the fixed partition plate 3 and locked, the movable partition plate 4 covers the second through groove 302 .

[0049] In this embodiment, the through groove 2 302, the inner cavity of the fixed partition 3, the through groove 303 and the through groove 1 201 together form a heat dissipation channel, so that the heat in the fan-shaped space where the cable is located can flow into the inner circular tube 2, thereby improving the heat dissipation effect of the cable, and by designing a partition plate 8 with a heat insulation layer, the heat in different fan-shaped spaces will not flow to each other, so that the heat generated by the cables at different positions will not affect each other.

[0050] And during the transportation of this cable protection tube, when the movable partition 4 is retracted into the fixed partition 3 and locked, the movable partition 4 will cover the through groove 2 302, and will be equipped with suitable rubber plugs to plug the two ends of the inner tube 2, so that the above-mentioned heat dissipation channel is blocked, reducing the entry of impurities during transportation.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. An impact-resistant power cable protection tube, comprising an outer tube body (1), an inner tube (2), a partition module and a supporting arc plate (5), wherein the outer tube body (1) is provided with a longitudinal notch, the inner tube (2) is located inside the outer tube body (1), and the inner tube (2) and the outer tube body (1) have the same axis, a plurality of partition modules are installed on the outer annular surface of the inner tube (2), a supporting arc plate (5) is installed on the end of each partition module away from the inner tube (2), the outer arc surface of the supporting arc plate (5) is in contact with the inner wall of the outer tube body (1), and all the partition modules divide the annular space between the inner tube (2) and the outer tube body (1) into a plurality of fan-shaped spaces, and the fan-shaped spaces are used to accommodate cables; Features: The partition module is composed of a fixed partition (3) installed on the inner circular tube (2), a movable partition (4) connected to the supporting arc plate (5), and a damping telescopic rod (6); the movable partition (4) slides in the fixed partition (3), and the damping telescopic rod (6) is installed between the movable partition (4) and the fixed partition (3); when an external force impacts the outer tube body (1), the impact vibration of the outer tube body (1) is transmitted to the movable partition (4) and the supporting arc plate (5), and at this time, the impact vibration of the movable partition (4) is absorbed by the damping telescopic rod (6), so as to reduce the damage of the external impact to the partition module and the influence on the internal cables; The outer tube body (1) is composed of two arc plates that are movably connected to each other. Two fixing bolts (7) are installed and penetrated at the movable connection of the two arc plates. When the fixing bolts (7) are removed, the two arc plates can rotate freely. A locking structure is provided at the sliding position of the movable partition plate (4) and the fixed partition plate (3). The locking structure keeps the damping telescopic rod (6) in a compressed state, so that the movable partition plate (4) remains in a state of being retracted into the fixed partition plate (3); The fixed partition plate (3) is provided with a slot (301), and the movable partition plate (4) is provided with a telescopic spring bead (401). The slot (301) and the telescopic spring bead (401) cooperate to form the locking structure. When the movable partition plate (4) is received into the fixed partition plate (3), the telescopic spring bead (401) is inserted into the slot (301) to be locked.

2. The impact-resistant power cable protection tube according to claim 1, characterized in that: After assembly, one of the supporting arc plates (5) is filled in the longitudinal notch of the outer tube body (1).

3. The impact-resistant power cable protection tube according to claim 2, characterized in that: The longitudinal notch of the outer tube body (1) is provided with an inclined surface, so that when the outer tube body (1) rotates, the inclined surface can assist in pressing down the supporting arc plate (5) filled in the longitudinal notch.

4. The impact-resistant power cable protection tube according to claim 3, characterized in that: Except for the supporting arc plate (5) filling the longitudinal notch of the outer tube body (1), the outer arc surfaces of the other supporting arc plates (5) are all provided with a limiting convex strip (501), and the inner wall of the outer tube body (1) is provided with a limiting groove (101), and the limiting convex strip (501) is located in the limiting groove (101).

5. The impact-resistant power cable protection tube according to claim 4, characterized in that: A second through groove (302) is provided on one side of the fixed partition (3), a third through groove (303) is provided on the bottom of the fixed partition (3), a plurality of first through grooves (201) are provided on the inner circular tube (2), the second through groove (302), the inner cavity of the fixed partition (3), the third through groove (303) and the first through groove (201) together form a heat dissipation channel, and the heat dissipation channel connects the fan-shaped space for accommodating the cable with the inner circular tube (2).

6. The impact-resistant power cable protection tube according to claim 5, characterized in that: A partition plate (8) is installed inside the inner circular tube (2), and the partition plate (8) divides the interior of the inner circular tube (2) into a plurality of heat dissipation spaces, each of the heat dissipation spaces corresponding to one of the through grooves 1 (201).

7. The impact-resistant power cable protection tube according to claim 6, characterized in that: A heat insulation layer is provided on the surface of the partition plate (8).

8. The impact-resistant power cable protection tube according to claim 7, characterized in that: When the movable partition plate (4) is retracted into the fixed partition plate (3) and locked, the movable partition plate (4) covers the second through groove (302).

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