Power line carrier communication anti-interference device

Abstract

The invention belongs to the field of wired transmission, particularly relates to a power line carrier communication anti-interference device, and aims to solve the problems that an existing anti-interference wave modulation device is fixed through a fixing plate and is prone to collision, the service life of the anti-interference wave modulation device is affected, and if the anti-interference wave modulation device moves in the using process, a connecting line is easily driven to move, and the anti-interference effect is poor. In order to solve the problem that when the anti-interference device is used, the interface is damaged, the following scheme is provided, and the anti-interference device comprises two sets of damping supports, an anti-interference device body and a plurality of connecting wires inserted into the anti-interference device body. Meanwhile, a connecting wire can be fixed through cooperative use of a rotating column and a limiting ring, a protective cover, a sleeve plate and an anti-interference device body can be fixed to a bottom plate through cooperative use of the rotating column and the limiting ring and a sliding strip, and the anti-interference device can be buffered and damped through arrangement of a damping support; and the adaptive service life of the anti-interference device body can be effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of wired transmission, and in particular to an anti-interference device for power line carrier communication. Background Art

[0002] The power line carrier communication system refers to a power communication system that uses the transmission line as the transmission medium for the carrier signal. The AC power currently used has two frequencies, 50HZ and 60HZ. The power line will have two peaks in each AC cycle, bringing two pulse interferences, that is, there is a fixed 100HZ or 120HZ pulse interference on the power line, and the interference time is about 2ms. Power line carrier communication is a unique and basic communication method for power systems. It refers to the technology of using existing power lines to transmit analog or digital signals at high speed through carriers.

[0003] After searching, the utility model with announcement number CN219477968U discloses an anti-interference wave modulation device for power carrier communication, including a fixing plate, the upper surface of which is provided with two slots, each of which is provided with a plug block, the upper surfaces of the two plug blocks are commonly fixedly connected with a signal anti-interference device, and the front of each plug block is provided with a socket. The utility model, through the coordination of the setting of the fixing sleeve, spring, plug rod, plug block, slot and socket, utilizes the elasticity of the spring to push the plug rod, and can push the plug rod into the socket to fix the plug block, and also facilitates the staff to disassemble the signal anti-interference device, which will reduce the time for the staff to inspect and repair it, thereby solving the problem of poor communication caused by the pulse interference generated by the AC cycle.

[0004] The device also has the following disadvantages during use: it is fixed by a fixing plate during use, and when it is subjected to vibration, it will affect the anti-interference wave modulation device; at the same time, the anti-interference wave modulation device is exposed to the outside and is prone to bumps, which affects its service life; and if the anti-interference wave modulation device moves during use, it is easy to cause the connecting line to move, which will cause damage to the interface, and it is very unsafe to use. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the anti-interference wave modulation device is fixed by a fixing plate, which will affect the anti-interference wave modulation device when subjected to vibration, and is prone to bumps, affecting its service life. In addition, if the anti-interference wave modulation device moves during use, it is easy to cause the connecting line to move, causing damage to the interface, which is very unsafe to use. A power line carrier communication anti-interference device is proposed to solve the problem.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A power line carrier communication anti-interference device comprises two groups of shock-absorbing brackets and an anti-interference device body and a plurality of connecting wires plugged into the anti-interference device body, the bottoms of the two groups of shock-absorbing brackets are fixedly provided with a same bottom plate, and the anti-interference device body is arranged on the top of the bottom plate; A protective cover, which is sleeved on the anti-interference device body, and the outer wall of the protective cover is provided with a clearance hole corresponding to the wiring port, and the bottom of the protective cover is in conflict with the sleeve plate, and is used to protect the anti-interference device body and prevent it from being bumped during use; A sleeve plate, which is sleeved on the anti-interference device body and used in conjunction with the bottom plate to position the anti-interference device body on the bottom plate to prevent the anti-interference device body from moving during use; Two sets of fixing mechanisms are provided on the sleeve plate for fixing the anti-interference device body, the sleeve plate and the protective cover on the bottom plate; The sleeve plate is provided with a winding mechanism corresponding to the connecting wire, which is used in conjunction with the fixing mechanism to reel in excess connecting wires and protect the connection between the connecting wires and the anti-interference device body.

[0007] In a possible design, the fixing mechanism includes two sliding rods that are slidably arranged on one side of the sleeve plate, and plug blocks are fixedly arranged at both ends of the sliding rods. Two sliding bars are slidably arranged on the top of the sleeve plate. The two plug blocks on the same side are fixedly connected to the corresponding sliding bars for limiting the plug blocks. A concave block used in conjunction with the plug blocks is fixedly arranged on the top of the base plate, and a bevel is provided on the top of the plug block.

[0008] In a possible design, at least three plugging rods are fixedly provided on the top of the sliding bar, a ring is sleeved on the outer wall of the plugging rod, an extension block is fixedly provided between the ring and the protective cover, and the directions of the plugging rod and the plugging block are opposite.

[0009] In a possible design, the winding mechanism includes a rotating column rotatably arranged on the top of the sleeve plate and corresponding to the connecting line, a rectangular hole for placing the connecting line is provided on the top of the rotating column, connecting columns corresponding to the rotating column are fixedly provided on both sides of the protective cover, a limiting ring is fixedly provided on the other end of the connecting column, two positioning holes are provided on the top of the limiting ring, and a pressure plate is formed between the two positioning holes for resisting the connecting line in the rectangular hole.

[0010] In a possible design, the sliding bar is composed of a plurality of connecting bars and a rack, the rack corresponds to the rotating column, and the rack is fixed between two adjacent connecting bars, the insert block is fixed at the bottom of the connecting bar on the side, the insert rod is fixed at the top of the rack, the outer wall of the rotating column is fixedly sleeved with a gear meshing with the rack, and the same connecting plate is fixed between the two connecting bars on the side.

[0011] In a possible design, a rotating ring is rotatably sleeved on the outer wall of the rotating column, a plurality of fixing rods are fixedly provided between the rotating ring and the sleeve plate, a torsion spring is rotatably sleeved on the outer wall of the rotating column, and two ends of the torsion spring are respectively fixedly connected to the rotating ring and the side of the gear close to each other.

[0012] In a possible design, the diameter of the positioning hole is equal to the diameter of the rotating column, and the width of the pressing plate is smaller than the rectangular hole, thereby providing space for the rotating column to reset and rotate.

[0013] In a possible design, the shock-absorbing bracket includes a first T-shaped frame and a second T-shaped frame, the second T-shaped frame is fixedly arranged on the top of the base plate, a waist-shaped hole is opened on one side of the first T-shaped frame, a guide column is fixedly arranged on the inner wall of the waist-shaped hole, and a sliding sleeve of a sliding column located in the waist-shaped hole is arranged on the outer wall of the guide column, the second T-shaped frame is rotatably sleeved on the sliding column, two first rotating seats are rotatably arranged on one side of the second T-shaped frame, two second rotating seats are rotatably arranged on one side of the first T-shaped frame, the same damper is fixedly arranged between the first rotating seat and the second rotating seat on the same side, and a mounting plate is fixedly arranged on one side of the first T-shaped frame.

[0014] In a possible design, four connecting ears are fixedly provided on the outer side of the anti-interference device body, and positioning columns are inserted in the connecting ears. The positioning columns are fixedly provided on the top of the base plate for positioning the connecting ears, and positioning grooves corresponding to the connecting ears are fixedly provided on the bottom of the sleeve plate.

[0015] In a possible design, the outer wall fixing sleeve of the positioning column is provided with a gasket located between the connecting ear and the base plate, so that a gap can be formed between the base plate and the anti-interference device body, and a heat dissipation hole is opened at the bottom of the base plate.

[0016] In the present application, during installation, the mounting plate is first fixed on the mounting body, and then the sleeve plate is placed on the anti-interference device body, and together with the anti-interference device body, is placed on the bottom plate, so that the positioning column is inserted into the corresponding connecting ear, and the anti-interference device body is limited until the connecting ear and the gasket are in conflict, so that there is a gap between the anti-interference device body and the bottom plate for ventilation and heat dissipation; Then put the connecting wire in the rectangular hole and push the sliding bar to move. The movement of the sliding bar can drive the gear to rotate through the rack, drive the rotating column to rotate, and store the redundant connecting wires. At the same time, the connecting bar drives the plug block to move, so that the plug block is inserted into the corresponding concave block to fix the sleeve plate on the bottom plate. Finally, clamp the protective cover on the anti-interference device body, so that the pressure plate is clamped in the rectangular hole to fix the connecting line, and then loosen the sliding bar. The rotating column can reset and rotate under the force of the torsion spring, and drive the sliding bar to reset and move. During the movement, the plug rod is driven to insert into the ring to fix the protective cover. At this time, the installation is completed; When vibrated, the base plate will move up and down and swing. The rotation and up and down movement of the base plate can drive the second T-shaped frame to rotate on the sliding column and drive the sliding column to move downward, which can drive the damper to expand and contract. The damper can reduce shock and buffer the damper during the expansion and contraction process.

[0017] In the present invention, the power line carrier communication anti-interference device can drive the rotating column to rotate to wind the connecting line by pushing the sliding bar, and at the same time, the sleeve plate can be fixed on the bottom plate, and the anti-interference device body can be indirectly fixed on the bottom plate, so that it is easy to fix, and the anti-interference device body will not move during use, which is more stable; In the present invention, the power line carrier communication anti-interference device can drive the rotating column to reset and rotate in the limiting ring by arranging a torsion spring on the rotating column, and drive the sliding bar to reset and move through the gear, and the protective cover can be fixed during the movement, and the rotating column and the limiting ring are used in combination, which can not only guide the protective cover, but also limit the rotating column, so that they can be used for each other; In the present invention, the power line carrier communication anti-interference device can buffer and reduce shock on the anti-interference device body through the coordinated use of the damper, the first T-shaped frame and the second T-shaped frame, and can fix the connecting line with the rotating column so that the interface will not be damaged during the vibration process, which can effectively improve the service life of the anti-interference device body; In the present invention, the power line carrier communication anti-interference device can leave a gap between the rack and the bottom plate through the setting of the gasket, so that it is convenient to cooperate with the heat dissipation hole to dissipate heat for the anti-interference device body; In the present invention, the anti-interference device body can be protected by setting the protective cover, and the connecting line can be fixed by the coordinated use of the rotating column and the limit ring. In addition, the protective cover, the sleeve plate and the anti-interference device body can be fixed on the base plate at the same time by using the sliding bar, so that the fixation is convenient, and the shock-absorbing bracket can be set to buffer and dampen the anti-interference device body, which can effectively improve the adaptability and service life of the anti-interference device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a power line carrier communication anti-interference device proposed by the present invention; Figure 2This is a schematic diagram of the decomposed structure of a power line carrier communication anti-interference device proposed by the present invention; Figure 3 A schematic diagram of the protective cover structure of a power line carrier communication anti-interference device proposed by the present invention; Figure 4 A schematic diagram of the structure of a set of boards of a power line carrier communication anti-interference device proposed by the present invention; Figure 5 This is a schematic diagram of the bottom plate structure of a power line carrier communication anti-interference device proposed by the present invention; Figure 6 A schematic diagram of the structure of a shock-absorbing bracket for a power line carrier communication anti-interference device proposed by the present invention; Figure 7 This is a schematic diagram of the amplified structure of part A of a power line carrier communication anti-interference device proposed by the present invention.

[0019] In the figure: 1, shock-absorbing bracket; 2, bottom plate; 3, sleeve plate; 4, rotating column; 5, connecting wire; 6, anti-interference device body; 7, protective cover; 71, clearance hole; 8, heat dissipation hole; 9, connecting ear; 10, limiting ring; 101, pressing plate; 11, positioning hole; 12, extension block; 13, sleeve ring; 14, connecting column; 15, rectangular hole; 16, sliding bar; 17, sliding rod; 18, plug block; 19, positioning groove; 20, Connecting plate; 21, gear; 22, rotating ring; 23, fixing rod; 24, torsion spring; 25, connecting strip; 26, rack; 27, plug rod; 28, positioning column; 29, concave block; 30, gasket; 31, first T-shaped frame; 32, mounting plate; 33, waist-shaped hole; 34, guide column; 35, sliding column; 36, damper; 37, first rotating seat; 38, second rotating seat; 39, second T-shaped frame; 40, bevel. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Example 1

[0022] Reference Figure 1-Figure 7 , a power line carrier communication anti-interference device, which is used in the field of anti-interference devices, comprises: two groups of shock-absorbing brackets 1 and an anti-interference device body 6 and a plurality of connecting wires 5 plugged into the anti-interference device body 6, the bottom of the two groups of shock-absorbing brackets 1 are fixedly provided with a same bottom plate 2, and the anti-interference device body 6 is arranged on the top of the bottom plate 2; The protective cover 7 is sleeved on the anti-interference device body 6. The outer wall of the protective cover 7 is provided with a clearance hole 71 corresponding to the wiring port. The bottom of the protective cover 7 contacts the sleeve plate 3 to protect the anti-interference device body 6 from being bumped during use. The sleeve plate 3 is sleeved on the anti-interference device body 6 and is used in conjunction with the bottom plate 2 to position the anti-interference device body 6 on the bottom plate 2 to prevent the anti-interference device body 6 from moving during use; Two sets of fixing mechanisms are both arranged on the sleeve plate 3 for fixing the anti-interference device body 6, the sleeve plate 3 and the protective cover 7 on the bottom plate 2; A winding mechanism corresponding to the connecting wire 5 is provided on the sleeve plate 3, which is used in conjunction with the fixing mechanism to reel in the redundant connecting wire 5 and protect the connection between the connecting wire 5 and the anti-interference device body 6. The setting of the two groups of shock-absorbing brackets 1 can provide shock absorption and buffering for the anti-interference device body 6, and can protect the anti-interference device body 6 during use. The setting of the protective cover 7 can further protect the anti-interference device body 6. The fixing mechanism can simultaneously fix the anti-interference device body 6, the sleeve plate 3 and the protective cover 7 on the bottom plate 2, and can drive the winding mechanism to fix the connecting wire 5, which can not only fix the connecting wire 5, but also protect the interface between the connecting wire 5 and the anti-interference device body 6.

[0023] The anti-interference device body 6 may be the same as that in the patent document CN219477968U; The anti-interference device body 6 may also include a detection unit and an execution unit respectively connected to the power line, and the power line carrier communication meter reading network is also connected to the power line; the detection unit includes a voltage isolation transformer and a main controller connected to the power line, and the output signal of the voltage isolation transformer is divided into two paths, one of which is connected to the main controller through a zero comparator, and the other is connected to the main controller through a signal amplifier and an A / D converter in sequence; the execution unit includes a resistor-capacitor device group composed of a plurality of resistor-capacitor devices connected to the power line, and the resistor-capacitor device group is switched on and off by a switching control unit, and the control end of the switching control unit is connected to the main controller. The main controller starts signal acquisition when the power line voltage passes through zero, obtains harmonic components after processing the collected digital signals, obtains power line carrier communication interference parameters according to the proportion of harmonic components in the fundamental wave, and switches resistor-capacitor devices in real time according to the interference parameters to reduce interference, which may be the same as the patent with announcement number CN107911144B.

[0024] The fixing mechanism includes two sliding rods 17 that are slidably arranged on one side of the sleeve plate 3, and plug blocks 18 are fixedly arranged at both ends of the sliding rods 17. Two sliding bars 16 are slidably arranged on the top of the sleeve plate 3. The two plug blocks 18 on the same side are fixedly connected to the corresponding sliding bars 16 for limiting the position of the plug blocks 18. A concave block 29 used in conjunction with the plug blocks 18 is fixedly arranged on the top of the bottom plate 2. A bevel 40 is provided on the top of the plug block 18. The plug block 18 can be driven to move by pushing the sliding bar 16 to insert the plug block 18 into the corresponding concave block 29, and the plug block 18 can be limited by setting the sliding bar 16 to prevent the plug block 18 from rotating during use and affecting the connection between the plug block 18 and the concave block 29. At the same time, the setting of the bevel 40 facilitates the insertion of the plug block 18 into the concave block 29.

[0025] At least three insertion rods 27 are fixedly provided on the top of the sliding bar 16, and the outer wall of the insertion rod 27 is sleeved with a ring 13. An extension block 12 is fixedly provided between the ring 13 and the protective cover 7. The insertion rod 27 is in opposite directions to the insertion block 18. By pushing the sliding bar 16, the insertion block 18 can be driven to be inserted into the concave block 29. When the protective cover 7 is stuck on the anti-interference device body 6, pulling the sliding bar 16 in the opposite direction can drive the insertion rod 27 to be inserted into the corresponding ring 13, thereby fixing the protective cover 7 and the sleeve plate 3 on the base plate 2 at the same time.

[0026] The winding mechanism includes a rotating column 4 which is rotatably arranged on the top of the sleeve plate 3 and corresponds to the connecting line 5. A rectangular hole 15 for placing the connecting line 5 is provided on the top of the rotating column 4. Connecting columns 14 corresponding to the rotating column 4 are fixedly provided on both sides of the protective cover 7. A limiting ring 10 is fixedly provided on the other end of the connecting column 14. Two positioning holes 11 are provided on the top of the limiting ring 10. A pressure plate 101 is formed between the two positioning holes 11 for resisting the connecting line 5 in the rectangular hole 15. By rotating the rotating column 4, the redundant rectangular hole 15 can be wound. After the winding is completed, the protective cover 7 is put on the anti-interference device body 6 so that the limiting ring 10 is filled on the rotating column 4. The connecting line 5 is fixed in the rectangular hole 15 by using the pressure plate 101. At the same time, the rotating column 4 and the limiting ring 10 can guide the protective cover 7, and the protective cover 7 will not be offset during the installation process.

[0027] The sliding bar 16 is composed of a plurality of connecting bars 25 and a rack 26. The rack 26 corresponds to the rotating column 4, and the rack 26 is fixed between two adjacent connecting bars 25. The plug block 18 is fixed at the bottom of the connecting bar 25 on the side, and the plug rod 27 is fixed at the top of the rack 26. The outer wall of the rotating column 4 is fixedly sleeved with a gear 21 meshing with the rack 26. The same connecting plate 20 is fixedly provided between the two connecting bars 25 on the side. By pushing the connecting bar 25 to move, the plug block 18, the plug rod 27 and the rack 26 can be driven to move. The movement of the rack 26 can drive the gear 21 to rotate, thereby driving the rotating column 4 to rotate, so that there is no need to rotate the rotating column 4 separately to store the excess connecting wire 5 during the installation process, so that it is easy to operate, and the setting of the connecting plate 20 can make the sliding bars 16 on both sides move synchronously.

[0028] Four connecting ears 9 are fixedly provided on the outer side of the anti-interference device body 6, and a positioning column 28 is inserted in the connecting ear 9. The positioning column 28 is fixedly provided on the top of the base plate 2 for positioning the connecting ear 9. A positioning groove 19 corresponding to the connecting ear 9 is fixedly provided on the bottom of the sleeve plate 3. The anti-interference device body 6 can be limited by the coordinated use of the connecting ear 9 and the positioning column 28. At the same time, the connecting ear 9 can be further fixed by opening the positioning groove 19, which is more stable during use.

[0029] Example 2

[0030] refer to Figure 1-Figure 7 , an improvement based on Example 1: a rotating ring 22 is rotatably sleeved on the outer wall of the rotating column 4, a plurality of fixing rods 23 are fixedly arranged between the rotating ring 22 and the sleeve plate 3, a torsion spring 24 is sleeved on the outer wall of the rotating column 4, and the two ends of the torsion spring 24 are respectively fixedly connected to the rotating ring 22 and the side close to each other of the gear 21, and pushing the sliding bar 16 will drive the gear 21 to rotate. When the gear 21 rotates, it will drive the rotating column 4 to rotate, and at the same time compress the torsion spring 24. When the sliding bar 16 is released, the rotating column 4 can rotate in the opposite direction under the action of the torsion spring 24, and drive the sliding bar 16 to move in the opposite direction through the gear 21, so that the insertion rod 27 is inserted into the sleeve ring 13 to fix the protective cover 7, further reducing the operation steps.

[0031] The diameter of the positioning hole 11 is equal to the diameter of the rotating column 4, and the width of the pressure plate 101 is smaller than the rectangular hole 15, providing space for the rotating column 4 to reset and rotate. By setting the pressure plate 101 to be smaller than the rectangular hole 15, space can be provided for the rotating column 4 to reset and rotate, preventing the sliding bar 16 from being unable to reset and move.

[0032] The outer wall fixing sleeve of the positioning column 28 is provided with a gasket 30 located between the connecting ear 9 and the base plate 2, which can create a gap between the base plate 2 and the anti-interference device body 6. A heat dissipation hole 8 is provided at the bottom of the base plate 2. The heat dissipation hole 8 and the gasket 30 can support the anti-interference device body 6, so that a gap is retained between the anti-interference device body 6 and the base plate 2, and the heat dissipation hole 8 can be used together with the anti-interference device body 6 to dissipate heat.

[0033] The shock-absorbing bracket 1 includes a first T-shaped frame 31 and a second T-shaped frame 39. The second T-shaped frame 39 is fixedly arranged on the top of the bottom plate 2. A waist-shaped hole 33 is opened on one side of the first T-shaped frame 31. A guide column 34 is fixedly arranged on the inner wall of the waist-shaped hole 33. The outer wall of the guide column 34 is slidably sleeved with a sliding column 35 located in the waist-shaped hole 33. Preferably, two springs are sleeved on the outer wall of the guide column 34. The two springs are respectively located above and below the sliding column 35. When the mode vibrates, the springs absorb shock. The second T-shaped frame 39 is rotatably sleeved on the sliding column 35. One side of the second T-shaped frame 39 is rotated. Two first rotating seats 37 are rotatably provided, and two second rotating seats 38 are rotatably provided on one side of the first T-shaped frame 31. A damper 36 is fixedly provided between the first rotating seat 37 and the second rotating seat 38 on the same side. A mounting plate 32 is fixedly provided on one side of the first T-shaped frame 31. Through the setting of the sliding column 35, the second T-shaped frame 39 can be moved up and down and rotated on the first T-shaped frame 31. At the same time, the setting of the two dampers 36 can be used to reduce shock and buffer the rotation and up and down movement, which can effectively provide buffer protection for the interference device body 6, and is easy to use and install.

[0034] However, as is well known to those skilled in the art, the working principle and wiring method of the anti-interference device body 6 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power line carrier communication anti-interference device, comprising two sets of shock-absorbing brackets (1), an anti-interference device body (6), and a plurality of connecting wires (5) plugged into the anti-interference device body (6), characterized in that: The bottoms of the two groups of shock-absorbing brackets (1) are fixedly provided with a common bottom plate (2), and the anti-interference device body (6) is arranged on the top of the bottom plate (2); A protective cover (7), the protective cover (7) being sleeved on the anti-interference device body (6), the outer wall of the protective cover (7) being provided with a clearance hole (71) corresponding to the wiring port, the bottom of the protective cover (7) being in contact with the sleeve plate (3), and being used to protect the anti-interference device body (6) and prevent it from being bumped during use; A sleeve plate (3), the sleeve plate (3) being sleeved on the anti-interference device body (6) and used in conjunction with the bottom plate (2) to position the anti-interference device body (6) on the bottom plate (2) to prevent the anti-interference device body (6) from moving during use; Two sets of fixing mechanisms are both arranged on the sleeve plate (3) and are used to fix the anti-interference device body (6), the sleeve plate (3) and the protective cover (7) on the bottom plate (2); The sleeve plate (3) is provided with a winding mechanism corresponding to the connecting wire (5), which is used in conjunction with the fixing mechanism to wind up the redundant connecting wire (5) and at the same time protect the connection between the connecting wire (5) and the anti-interference device body (6).

2. A power line carrier communication anti-interference device according to claim 1, characterized in that: The fixing mechanism comprises two sliding rods (17) which are slidably arranged on one side of the sleeve plate (3), and plug blocks (18) are fixedly arranged at both ends of the sliding rods (17). Two sliding bars (16) are slidably arranged on the top of the sleeve plate (3), and the two plug blocks (18) on the same side are fixedly connected to the corresponding sliding bars (16) for limiting the position of the plug blocks (18). A concave block (29) which cooperates with the plug blocks (18) is fixedly arranged on the top of the bottom plate (2), and a bevel (40) is provided on the top of the plug blocks (18).

3. A power line carrier communication anti-interference device according to claim 2, characterized in that: At least three insertion rods (27) are fixedly provided on the top of the sliding bar (16); a collar (13) is sleeved on the outer wall of the insertion rod (27); an extension block (12) is fixedly provided between the collar (13) and the protective cover (7); and the insertion rod (27) and the insertion block (18) are in opposite directions.

4. A power line carrier communication anti-interference device according to claim 3, characterized in that: The winding mechanism comprises a rotating column (4) rotatably arranged on the top of the sleeve plate (3) and corresponding to the connecting line (5); a rectangular hole (15) for placing the connecting line (5) is provided on the top of the rotating column (4); connecting columns (14) corresponding to the rotating column (4) are fixedly provided on both sides of the protective cover (7); a limiting ring (10) is fixedly provided on the other end of the connecting column (14); two positioning holes (11) are provided on the top of the limiting ring (10); a pressure plate (101) is formed between the two positioning holes (11) for resisting the connecting line (5) in the rectangular hole (15).

5. A power line carrier communication anti-interference device according to claim 4, characterized in that: The sliding bar (16) is composed of a plurality of connecting bars (25) and a rack (26), wherein the rack (26) corresponds to the rotating column (4), and the rack (26) is fixedly arranged between two adjacent connecting bars (25), the insert block (18) is fixedly arranged at the bottom of the connecting bar (25) on the side, and the insert rod (27) is fixedly arranged at the top of the rack (26), and the outer wall of the rotating column (4) is fixedly sleeved with a gear (21) meshing with the rack (26), and the same connecting plate (20) is fixedly arranged between the two connecting bars (25) on the side.

6. A power line carrier communication anti-interference device according to claim 5, characterized in that: The outer wall of the rotating column (4) is rotatably sleeved with a rotating ring (22), a plurality of fixing rods (23) are fixedly arranged between the rotating ring (22) and the sleeve plate (3), and the outer wall of the rotating column (4) is sleeved with a torsion spring (24), the two ends of the torsion spring (24) are respectively fixedly connected to the rotating ring (22) and the side of the gear (21) close to each other.

7. A power line carrier communication anti-interference device according to claim 4, characterized in that: The diameter of the positioning hole (11) is equal to the diameter of the rotating column (4), and the width of the pressing plate (101) is smaller than the rectangular hole (15), thereby providing space for the rotating column (4) to reset and rotate.

8. The power line carrier communication anti-interference device according to claim 1, characterized in that: The shock absorbing bracket (1) comprises a first T-shaped frame (31) and a second T-shaped frame (39), the second T-shaped frame (39) being fixedly arranged on the top of the bottom plate (2), a waist-shaped hole (33) being opened on one side of the first T-shaped frame (31), a guide column (34) being fixedly arranged on the inner wall of the waist-shaped hole (33), a sliding column (35) being slidably sleeved on the outer wall of the guide column (34) and being located in the waist-shaped hole (33), the second T-shaped frame (39) being rotatably sleeved on the sliding column (35), two first rotating seats (37) being rotatably arranged on one side of the second T-shaped frame (39), two second rotating seats (38) being rotatably arranged on one side of the first T-shaped frame (31), a same damper (36) being fixedly arranged between the first rotating seat (37) and the second rotating seat (38) on the same side, and a mounting plate (32) being fixedly arranged on one side of the first T-shaped frame (31).

9. A power line carrier communication anti-interference device according to any one of claims 1 to 8, characterized in that: Four connecting ears (9) are fixedly provided on the outer side of the anti-interference device body (6), and positioning columns (28) are inserted into the connecting ears (9). The positioning columns (28) are fixedly provided on the top of the bottom plate (2) and are used to position the connecting ears (9). The bottom of the sleeve plate (3) is fixedly provided with positioning grooves (19) corresponding to the connecting ears (9).

10. A power line carrier communication anti-interference device according to claim 9, characterized in that: The outer wall fixing sleeve of the positioning column (28) is provided with a gasket ring (30) located between the connecting ear (9) and the bottom plate (2), so that a gap can be formed between the bottom plate (2) and the anti-interference device body (6), and a heat dissipation hole (8) is provided at the bottom of the bottom plate (2).

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