Cable protection pipe

Abstract

The utility model provides a cable protection tube, comprising a fixed cylinder provided with a plurality of first protection parts; the second protection parts and the first protection parts are arranged independently, and protection cavities are formed between the second protection parts and the first protection parts; the telescopic assembly is connected with the second protection part, the telescopic assembly can move relative to the fixed cylinder, the telescopic assembly has an unfolded state and a folded state under the action of external force, and in the unfolded state, the telescopic assembly is in linkage with the second protection part to move in the direction away from the first protection part, and in the folded state, the telescopic assembly is in linkage with the second protection part to move in the direction away from the first protection part. And in the folding state, the telescopic assembly is linked with the second protection part to move in the direction close to the first protection part, and the protection cavity is shrunk. The cable protection pipe solves the technical problem that the cable protection pipe in the prior art is not high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable protection technical field especially relates to a cable protection pipe. BACKGROUND

[0002] Cable protection pipe is the cable protection device of power cable, communication cable underground facilities, when the outside pressure or collision, play to the internal cable protection effect, it is widely used in power cable engineering, power transmission and transformation construction engineering, communication and optical cable line engineering, airport, traffic bridge, industrial park cable engineering, municipal construction underground cable engineering. But the existing cable protection pipe generally single tubular, when the same area protects many cables, needs to use many protection pipes to bind again many protection pipes, when the cable needs to be overhauled and maintained when aging or damaging, needs to remove many protection pipes and then overhauls and maintains, it is too cumbersome to use. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the prior art, the utility model provides a cable protection pipe, which solves the technical problem of low practicability of the cable protection pipe in the prior art.

[0004] According to the embodiment of the utility model, the utility model adopts the following technical scheme:

[0005] A cable protection pipe comprises:

[0006] A fixed cylinder is provided with a plurality of first protection parts;

[0007] A plurality of second protection parts are independently arranged with the first protection parts and are used to form a protection cavity with the first protection parts;

[0008] A telescopic assembly is connected to the second protection parts, and the telescopic assembly can move relative to the fixed cylinder. Under the action of external force, the telescopic assembly has an expanded state and a contracted state. In the expanded state, the telescopic assembly drives the second protection parts to move away from the first protection parts and expand the protection cavity. In the contracted state, the telescopic assembly drives the second protection parts to move close to the first protection parts and shrink the protection cavity.

[0009] Preferably, the telescopic assembly is a telescopic rod, and the two ends of the telescopic rod are connected to the second protection parts and the fixed cylinder respectively.

[0010] Preferably, the fixed cylinder is provided with a driving assembly for driving the second protection parts to switch between the expanded state and the contracted state.

[0011] Preferably, the driving assembly comprises:

[0012] A screw rod is arranged in the fixed cylinder and rotates along the axial direction of the fixed cylinder;

[0013] A sleeve is sleeved on the screw rod and is used for connecting the telescopic rod.

[0014] Preferably, the driving assembly further comprises a connecting plate connected with the second protection part, the connecting plate and the sleeve are both provided with hinge points, and the two ends of the telescopic rod are hinged to the corresponding hinge points.

[0015] Preferably, the connecting plate is provided with a limiting groove, and the second protection part is provided with a limiting protrusion which extends into the limiting groove.

[0016] Preferably, the first protection part and / or the second protection part are sleeved with rubber pads.

[0017] Preferably, the first protection part and the second protection part are both arc-shaped, and the bending directions of the two are opposite.

[0018] Compared with the prior art, the utility model has the advantages that the size of the protection cavity can be quickly adjusted according to the actual laying condition, the protection requirements of cables with different diameters can be met, and the cable can be quickly disassembled, so that the cable can be restored to the original state after maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the protection tube in an embodiment of the utility model;

[0020] Figure 2 It is a front view of the protection tube in an embodiment of the utility model;

[0021] Figure 3 It is a partial structural schematic view of the protection tube in an embodiment of the utility model.

[0022] In the above drawings: 1, fixed cylinder; 2, first protection part; 3, second protection part; 301, limiting protrusion; 4, telescopic rod; 5, screw rod; 6, sleeve; 7, connecting plate; 701, limiting groove. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and beneficial effects of the utility model more clearly understood, the technical scheme in the utility model will be further described below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0024] The utility model provides a kind of cable protection tube, it includes:

[0025] Fixed cylinder 1 is provided with a plurality of first protection part 2;

[0026] A plurality of second protection parts 3 are arranged independently of the first protection parts 2, and are configured to form a protection cavity with the first protection parts 2;

[0027] A telescopic assembly is connected to the second protection parts 3, and is movable relative to the fixed cylinder 1. Under the action of an external force, the telescopic assembly has an expanded state and a contracted state. In the expanded state, the telescopic assembly drives the second protection parts 3 to move away from the first protection parts 2, and expands the protection cavity. In the contracted state, the telescopic assembly drives the second protection parts 3 to move close to the first protection parts 2, and shrinks the protection cavity.

[0028] In this embodiment, the fixed cylinder 1 is provided with four first protection parts 2, and four second protection parts 3 are arranged independently of the four first protection parts 2, thereby forming a protection cavity for accommodating cables. Each second protection part 3 is connected to a telescopic assembly, and the size of the protection cavity is changed by the telescoping of the telescopic assembly. The telescopic assembly is movable relative to the fixed cylinder 1, and has an expanded state and a contracted state. In the expanded state, the telescopic assembly drives the second protection parts 3 to move away from the first protection parts 2, thereby expanding the space of the protection cavity. In the contracted state, the second protection parts 3 are pulled close to the first protection parts 2, thereby shrinking the protection cavity. The protection tube can accommodate multiple cables, and can quickly adjust the size of the protection cavity according to the actual laying situation, thereby meeting different construction requirements. When it is necessary to inspect or repair the cables, the protection tube can be easily opened, and the work can be completed. After the work is completed, the original state is restored.

[0029] The telescopic assembly is a telescopic rod 4, and the two ends of the telescopic rod 4 are respectively connected to the second protection parts 3 and the fixed cylinder 1.

[0030] In this embodiment, as a connecting component for connecting the second protection parts 3 and the fixed cylinder 1, the telescopic rod 4 provides a physical connection and a movement implementation mechanism. Under the action of an external force, the telescopic rod 4 is linearly stretched or contracted, thereby driving the second protection parts 3 to move. The connection between the telescopic rod 4, the second protection parts 3, and the fixed cylinder 1 can be achieved by fixing one end of the telescopic rod 4 to the second protection parts 3 and fixing the other end of the telescopic rod 4 to the fixed cylinder 1. When the telescopic rod 4 is actuated, it can directly affect the position change of the second protection parts 3, thereby changing the size of the protection cavity.

[0031] Of course, in order to more conveniently operate the telescopic rod 4 and the second protection parts 3, the fixed cylinder 1 is provided with a driving assembly for driving the second protection parts 3 to switch between the expanded state and the contracted state. Further, the driving assembly includes a lead screw 5 arranged in the fixed cylinder 1 and rotating along the axial direction of the fixed cylinder 1, and a sleeve 6 sleeved on the lead screw 5 and used for connecting the telescopic rod 4.

[0032] In the embodiment, the fixed cylinder 1 is provided with a driving assembly for controlling the action of the telescopic rods 4, so as to realize the unfolding and folding of the second protection parts 3. The driving assembly comprises a screw rod 5 (a bidirectional screw rod 5 is adopted) installed along the axial direction of the fixed cylinder 1, two sleeves 6 are spaced apart and sleeved on the screw rod 5, each sleeve 6 is connected with a group of telescopic rods 4 (the number of the telescopic rods 4 is determined by the number of the second protection parts 3, and it should be understood in combination with the drawings that when the second protection parts 3 are provided with four, each sleeve 6 is connected to one of the second protection parts 3 through four telescopic rods 4 (i.e. a group)), the forward and reverse rotation of the screw rod 5 causes the two sleeves 6 to move close to or away from each other and drive the telescopic rods 4 to move in linkage, and then drive the position change of the second protection parts 3. At the same time, it is easy to understand that a slot for the telescopic rods 4 to pass through and move should be formed on the wall of the fixed cylinder 1 along the axial direction, which will not be described here.

[0033] The driving assembly further comprises a connecting plate 7 connected with the second protection parts 3, the connecting plate 7 and the sleeve 6 are both provided with hinge points, and the two ends of the telescopic rod 4 are hinged to the corresponding hinge points.

[0034] In the embodiment, the connecting plate 7 connects the second protection parts 3 and the telescopic rods 4, so as to ensure that the force transmission is more direct and stable, and the stress can be dispersed to avoid excessive local stress. Among them, the hinge point on the connecting plate 7 is used to connect one end of the telescopic rod 4, and the hinge point on the sleeve 6 is used to connect the other end of the telescopic rod 4, and the telescopic rod 4 is preferably provided with four in one embodiment, so that it is spaced apart and corresponds to one second protection part 3 along the circumferential direction of the sleeve 6. When the screw rod 5 rotates, the sleeve 6 moves axially along the screw rod 5, so that the hinge points on it move synchronously, at this time, the moving hinge points make the connected telescopic rods 4 change in angle relative to the axis of the screw rod 5, when the angle continuously increases, it means that the telescopic rod 4 is expanding relative to the screw rod 5, at this time, the expanded telescopic rod 4 expands the second protection part 3 through the connecting plate 7; on the contrary, when the angle continuously decreases, it means that the telescopic rod 4 is folding relative to the screw rod 5, at this time, the telescopic rod 4 is folding the second protection part 3 through the connecting plate 7. When the second protection part 3 is in the expanded state, the cable protection cavity is expanded; on the contrary, the cable protection cavity is reduced. In order to ensure the stability of the second protection part 3 during adjustment, the two sleeves 6 are arranged at opposite ends of the screw rod 5, each connecting a group of telescopic rods 4, when the screw rod 5 is reversed, the two sleeves 6 are relatively close to or away from each other, so as to move and open and close the corresponding telescopic rods 4 together, which improves the stability of the second protection part 3 during adjustment.

[0035] It can be understood that the telescopic rod 4 is used to further expand the expansion area of the second protection part 3, and after the sleeve 6 reaches the adjusting position, due to the expansion characteristics of the telescopic rod 4, when the actual diameter of the cable is slightly larger than the diameter of the protection cavity, the second protection part 3 can be slightly stretched manually through the telescopic rod 4 to expand the diameter of the protection cavity, so as to adapt to the diameter of the current cable.

[0036] The connecting plate 7 is provided with a limiting groove 701, and the second protection part 3 is provided with a limiting protrusion 301, and the limiting protrusion 301 extends into the limiting groove 701.

[0037] In the embodiment, the limiting groove 701 is arranged on the connecting plate 7, and the limiting protrusion 301 is arranged on the second protection part 3 and can extend into the limiting groove 701 on the connecting plate 7, so as to ensure that the second protection part 3 can only move along a predetermined path and avoid unnecessary transverse or offset movement.

[0038] The first protection part 2 and the second protection part 3 are sleeved with rubber pads.

[0039] In the embodiment, the sealing property of the rubber pad (not shown) makes the cable protection tube more suitable for humid, dusty and other harsh environments, and is used to seal the gap generated when the second protection part 3 is unfolded.

[0040] The first protection part 2 and the second protection part 3 are both arc-shaped, and the bending directions of the two are opposite.

[0041] In the embodiment, the first protection part 2 and the second protection part 3 are both designed as arc-shaped, which increases the flexibility and adaptability of the structure, and helps to better wrap and protect the cable.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and all should be covered in the scope of the claims of the utility model.

Claims

1. A cable protection tube, characterized in that, The utility model relates to a protection device for a vehicle, comprising: a fixed cylinder provided with a plurality of first protection parts; a plurality of second protection parts, which are independently arranged from the first protection parts and configured to form a protection cavity with the first protection parts; a telescopic assembly connected to the second protection parts, which is movable relative to the fixed cylinder and has an expanded state and a contracted state under external force, in the expanded state, the telescopic assembly drives the second protection parts to move away from the first protection parts and expand the protection cavity, and in the contracted state, the telescopic assembly drives the second protection parts to move close to the first protection parts and contract the protection cavity.

2. A cable protection tube according to claim 1, characterised in that The telescopic assembly is a telescopic rod, and the two ends of the telescopic rod are connected to the second protection parts and the fixed cylinder respectively.

3. A cable protection tube according to claim 2, characterised in that The fixed cylinder is provided with a driving assembly for driving the second protection parts to switch between the expanded state and the contracted state.

4. A cable protection tube according to claim 3, characterised in that The driving assembly comprises: a lead screw arranged in the fixed cylinder and rotating along the axial direction of the fixed cylinder; a sleeve arranged around the lead screw and connected to the telescopic rod.

5. A cable protection tube according to claim 4, characterised in that The driving assembly further comprises a connecting plate connected to the second protection parts, and the connecting plate and the sleeve are both provided with hinge points, and the two ends of the telescopic rod are hinged to the corresponding hinge points.

6. A cable protection tube according to claim 5, characterised in that The connecting plate is provided with a limiting groove, and the second protection parts are provided with a limiting protrusion, which extends into the limiting groove.

7. A cable protection tube according to claim 1, characterised in that The first protection parts and / or the second protection parts are provided with rubber pads.

8. A cable protection tube according to claim 1, characterized in that The first protection parts and the second protection parts are both arc-shaped, and the bending directions of the two are opposite.

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