Communication cable protection device

Abstract

According to the technical scheme, the communication cable protection device comprises a first cylinder, the first cylinder is sleeved with a second cylinder, and the inner edge face of the second cylinder is attached to the outer edge face of the first cylinder to rotate; the left side and the right side of the first cylinder are each provided with a set of extrusion unit, each set of extrusion unit is composed of a plurality of extrusion blocks evenly distributed in the circumferential direction, the second cylinder rotates to enable the multiple extrusion blocks to be fixed when the multiple extrusion blocks move into a cavity of the first cylinder, and the multiple extrusion blocks reset when the second cylinder rotates reversely; a sliding plate is arranged at the inner end of each extrusion block, moves left and right on the extrusion block, and resets to the middle position after sliding; according to the scheme, the structure that the plurality of extrusion blocks extrude the cable is adopted, the problem that a thread structure adopted in the prior art is prone to rusting in a humid environment is solved, and the service life of equipment is prolonged; the sliding plate can move left and right along with the pulling of the cable, thereby buffering the pulling force, effectively preventing the pulling force from directly damaging the outer wall of the cable, and improving the communication safety of the cable.

Description

Technical Field

[0001] The utility model relates to communication cable technology, in particular to a communication cable protection device. Background Art

[0002] The utility model with the authorization announcement number CN219420275U discloses a protective structure for a communication cable, the principle of which is to rotate the second ring 7 to be connected to the rear side of the lower end of the first ring 4 through the rotating assembly 6, and then the lower end of the bolt 81 passes through the first ring 4 and the second ring 7, so that the first ring 4 and the second ring 7 are firmly fixed on the outer wall of the cable body 1, and the anti-skid pad 9 plays an anti-skid role, and then the screw 33 is rotated, and the positioning block 341 is rotated to be connected to the inside of the positioning groove 342, so that the screw 33 drives the moving block 32, so that the two first rings 4 move toward each other, so as to achieve the effect of fastening the cable body 1 to the docking position; but there are the following problems in the use process:

[0003] 1. Since communication cables are usually installed underground or in pipe corridors, and the humidity underground and in pipe corridors is relatively high, when the above patent is used in an environment with relatively high humidity, the two bolts 81 and the screw rod 33 are affected by moisture, which may cause the threads of the screw rod to rust or fail, thus affecting the service life;

[0004] 2. Since the first ring 4 and the second ring 7 firmly fix the outer wall of the cable body 1 during use, when the cable 1 is pulled by external force, the external force may cause damage to the outer wall of the cable, which may seriously affect the communication quality. Summary of the invention

[0005] In view of the above situation, in order to solve the problems existing in the prior art, the utility model provides a communication cable protection device.

[0006] The technical solution includes a first cylinder, a second cylinder is sleeved on the outside of the first cylinder, and the inner edge surface of the second cylinder is attached to the outer edge surface of the first cylinder for rotation;

[0007] The first cylinder has a group of extrusion units on the left and right, each group of extrusion units is composed of a plurality of extrusion blocks evenly distributed on the circumference, the second cylinder can rotate to make the plurality of extrusion blocks move into the cavity of the first cylinder along the radial direction of the first cylinder, the second cylinder can be fixed when driving the plurality of extrusion blocks to move inward, and the plurality of extrusion blocks can move in the reverse direction and reset when the second cylinder rotates in the reverse direction;

[0008] The inner end of each extrusion block is provided with a slide plate, which can move left and right on the extrusion block, and can be reset to the middle position after sliding left and right.

[0009] The utility model adopts a structure in which multiple extrusion blocks slide to extrude the cable, which solves the problem that the threaded structure adopted in the prior art is prone to rust in a humid environment, and greatly increases the service life of the equipment; because the slide plate can move left and right when the cable is pulled, it forms a buffer for the pulling force, which can effectively prevent the pulling force from directly damaging the outer wall of the cable, thereby improving the safety of cable communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model.

[0011] Figure 2 for Figure 1 Front cross-sectional view.

[0012] Figure 3 It is a left view of the utility model.

[0013] Figure 4 for Figure 3 Left side cross-sectional view.

[0014] Figure 5 It is the front view of the extrusion block of the utility model.

[0015] Figure 6 for Figure 5 Front cross-sectional view.

[0016] Figure 7 It is a three-dimensional diagram of the extrusion block of the utility model.

[0017] Figure 8 It is a three-dimensional diagram of the utility model.

[0018] Fig. 9 This is a stereoscopic diagram of the first cylinder in the utility model with the extrusion block installed.

[0019] Fig.10 It is a three-dimensional diagram of the second cylinder in the present utility model. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0021] Combination Figures 1 to 10 The utility model comprises a first cylinder 1, a second cylinder 3 is sleeved on the outside of the first cylinder 1, and the inner edge surface of the second cylinder 3 is fitted on the outer edge surface of the first cylinder 1 for rotation;

[0022] The first cylinder 1 has a group of extrusion units on the left and right sides, each group of extrusion units is composed of a plurality of extrusion blocks 4 evenly distributed on the circumference, and the second cylinder 3 can rotate to make the plurality of extrusion blocks 4 move into the cavity of the first cylinder 1 along the radial direction of the first cylinder 1, and the second cylinder 3 can be fixed when driving the plurality of extrusion blocks 4 to move inward, and when the second cylinder 3 rotates in the opposite direction, the plurality of extrusion blocks 4 move in the opposite direction and reset;

[0023] Each extrusion block 4 has a slide plate 7 at its inner end. The slide plate 7 can move left and right on the extrusion block 4 and can return to the middle position after sliding left and right.

[0024] The extrusion block 4 is composed of a rectangular block 10 and a square rod 11 fixed on the rectangular block 10. The square rod 11 is perpendicular to the rectangular block 10, and the outer end of the square rod 11 is spherical.

[0025] A plurality of rectangular blind grooves corresponding to the extrusion blocks 4 are provided on the inner edge surface of the first cylinder 1, and a square hole is provided at the bottom of each rectangular blind groove. The rectangular block 10 on each extrusion block 4 is placed in the corresponding rectangular blind groove, and the square rod 11 passes through the square hole and the outer end of the square rod 11 is inserted into the second cylinder 3; a tension spring is sleeved on the square rod 11, one end of the tension spring is fixed to the bottom of the rectangular blind groove, and the other end of the tension spring is fixed to the rectangular block 10; the structure of the square rod 11 can ensure that the rectangular block 10 on the extrusion block 4 does not rotate when moving.

[0026] Blind holes 8 corresponding to the plurality of square rods 11 are formed on the inner edge surface of the second cylinder 3 . The square rods 11 are inserted into the corresponding blind holes 8 , and an oblique groove is formed on the inner edge surface of the blind holes 8 .

[0027] A rectangular blind hole is formed on the inner end surface of the rectangular block 10 on each of the extrusion blocks 4, and a round rod 6 in the left and right directions is fixed in each rectangular blind hole. A hanging ear is fixed on the slide plate 7, and the hanging ear is mounted on the round rod 6. The slide plate 7 moves left and right on the round rod 6 through the hanging ear. A compression spring is mounted on the round rod 6 on the left and right sides of the hanging ear, and one end of the compression spring is in contact with the rectangular blind hole, and the other end of the compression spring is in contact with the hanging ear; a rubber layer is fixed on the inner end surface of the slide plate 7.

[0028] The first cylinder 1 is open at both ends, and a ring 2 is fixed on each of the left and right sides of the outer edge of the first cylinder 1, and the second cylinder 3 is placed between the two rings 2; a pin 5 is inserted on each ring 2, one end of the pin 5 is placed outside the ring 2, and the other end of the pin 5 extends to the left and right end surfaces of the second sleeve 3, and a tension spring is sleeved on the pin 5 placed outside the ring 2, one end of the tension spring is fixed to the ring 2, and the other end of the tension spring is fixed to the outer end of the pin 5, and the end of the pin 5 extending to the second sleeve 3 is an inclined surface;

[0029] A plurality of rectangular grooves 9 are evenly distributed on the left and right end surfaces of the second sleeve 3, and the angle formed by each group of rectangular grooves 9 connected end to end on each end surface is consistent with the rotation angle of the second sleeve 3;

[0030] The beveled end of the pin 5 can be inserted into the rectangular slot 9 .

[0031] Before using the utility model, first pass one end of one of the cables to be connected through the cavity of the first cylinder 1, then connect and fix the two cables to form an interface. When in use, hold the ring 2 to move the utility model along the direction of the cable to the interface, so that the interface of the two cables is located in the cavity of the first cylinder 1. After moving, the other hand rotates the second cylinder 3. When the second cylinder 3 rotates, the inclined surface in the blind hole 8 squeezes the circular end of the square rod 11, so that the rectangular blocks 10 on the multiple extrusion blocks 4 slide radially inward in the rectangular blind groove on the inner edge of the first cylinder 1. During rotation, the inclined surface of the pin 5 on the ring 2 is squeezed and can be placed in different rectangular grooves 9 in sequence. When the rubber layer on the lower end surface of the slide plate 7 squeezes the outer walls of the two cables, the pin 5 is placed in one of the rectangular grooves 9, so that the rotating drum 3 stops rotating. The multiple extrusion blocks 4 squeeze and fix the outer wall of the cable interface at the same time. At this time, the pin 5 is always placed in the rectangular groove 9 under the action of the tension spring to prevent the rotating drum 3 from reversing. At the same time, the slide plate 7 is placed in the middle position of the rectangular block 10 on the extrusion block 4.

[0032] When the cable is pulled by external force, the slide plate 7 will slide axially in the pulling direction due to the compression of the outer wall of the cable by multiple slide plates 7, thus buffering the pulling force and preventing the pulling force from directly damaging the outer wall of the cable at the fastening point. After the pulling force ends, the slide plate 7 is subjected to the force of the compression springs on the left and right sides, so that the slide plate 7 returns to the initial position;

[0033] When the cable interface needs to be inspected, the two pins 5 are pulled outward to disengage the inner ends of the pins 5 from the rectangular grooves 9. Under the action of the tension springs, the outer end spheres of the square rods 11 of the extrusion blocks 4 squeeze the inclined surfaces in the blind holes 8, causing the second cylinder 3 to rotate in the opposite direction. The extrusion blocks 4 slide upward to disengage the slide plate 7 from the cable, and finally the first cylinder 1 can move on the cable, exposing the cable interface for inspection.

[0034] The utility model adopts a structure in which multiple extrusion blocks 4 slide to extrude the cable, which solves the problem that the threaded structure used in the prior art is prone to rust in a humid environment, and greatly increases the service life of the equipment;

[0035] Since the slide plate 7 can move left and right when the cable is pulled, it can buffer the pulling force and effectively prevent the pulling force from directly damaging the outer wall of the cable, thereby improving the safety of cable communication.

Claims

1. A communication cable protection device, characterized in that: It comprises a first cylinder (1), a second cylinder (3) is sleeved on the outside of the first cylinder (1), and the inner edge surface of the second cylinder (3) is fitted on the outer edge surface of the first cylinder (1) for rotation; The first cylinder (1) has a group of extrusion units on the left and right sides, each group of extrusion units is composed of a plurality of extrusion blocks (4) evenly distributed in a circumference, the second cylinder (3) can rotate to enable the plurality of extrusion blocks (4) to move into the cavity of the first cylinder (1) along the radial direction of the first cylinder (1), the second cylinder (3) can drive the plurality of extrusion blocks (4) to move inwardly and can be fixed, and the plurality of extrusion blocks (4) can move in the reverse direction and reset when the second cylinder (3) rotates in the reverse direction; Each extrusion block (4) has a slide plate (7) at its inner end. The slide plate (7) can move left and right on the extrusion block (4). After sliding left and right, the slide plate (7) can return to a middle position.

2. The communication cable protection device according to claim 1, characterized in that: The extrusion block (4) is composed of a rectangular block (10) and a square rod (11) fixed on the rectangular block (10), the square rod (11) is perpendicular to the rectangular block (10), and the outer end of the square rod (11) is spherical; A plurality of rectangular blind grooves corresponding to the extrusion blocks (4) are formed on the inner edge surface of the first cylinder (1), and a square hole is formed at the bottom of each rectangular blind groove. The rectangular block (10) on each extrusion block (4) is placed in the corresponding rectangular blind groove, and the square rod (11) passes through the square hole and the outer end of the square rod (11) is inserted into the second cylinder (3). A tension spring is sleeved on the square rod (11), one end of the tension spring is fixed to the bottom of the rectangular blind groove, and the other end of the tension spring is fixed to the rectangular block (10).

3. The communication cable protection device according to claim 2, characterized in that: Blind holes (8) corresponding to the plurality of square rods (11) are formed on the inner edge surface of the second cylinder (3); the square rods (11) are inserted into the corresponding blind holes (8); and oblique grooves are formed on the inner edge surfaces of the blind holes (8).

4. The communication cable protection device according to claim 2 or 3, characterized in that: A rectangular blind hole is formed on the inner end surface of the rectangular block (10) on each of the extrusion blocks (4), a round rod (6) in the left and right directions is fixed in each rectangular blind hole, a hanging ear is fixed on the slide plate (7), the hanging ear is mounted on the round rod (6), the slide plate (7) moves left and right on the round rod (6) through the hanging ear, a compression spring is mounted on the round rod (6) on the left and right sides of the hanging ear, one end of the compression spring contacts the rectangular blind hole, and the other end of the compression spring contacts the hanging ear; a rubber layer is fixed on the inner end surface of the slide plate (7).

5. The communication cable protection device according to claim 4, characterized in that: The first cylinder (1) is open at both ends, a ring (2) is fixed on each of the left and right sides of the outer edge surface of the first cylinder (1), and the second cylinder (3) is placed between the two rings (2); a pin (5) is inserted into each ring (2), one end of the pin (5) is placed outside the ring (2), and the other end of the pin (5) extends to the left and right end surfaces of the second cylinder (3); a tension spring is sleeved on the pin (5) placed outside the ring (2), one end of the tension spring is fixed to the ring (2), and the other end of the tension spring is fixed to the outer end of the pin (5); the end of the pin (5) extending to the second cylinder (3) is an inclined surface; A plurality of rectangular grooves (9) are evenly distributed on the left and right end surfaces of the second cylinder (3); the angle formed by connecting each group of rectangular grooves (9) on each end surface end to end is consistent with the rotation angle of the second cylinder (3); The beveled end of the pin (5) can be inserted into the rectangular groove (9).

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