Power cable sealing device

Abstract

The invention relates to the technical field of sealing devices, and discloses a power cable sealing device which comprises a shell, a baffle is fixedly connected to the circumferential surface of the shell, a sleeve is installed on the circumferential surface of the shell, and a clamping device is arranged on the inner wall of the shell. A cable is inserted into an inlet of the device, after the cable completely enters a pipeline, a sealing plate is pushed to move upwards, a cam is clamped in a groove in the surface of the sealing plate, the sealing plate can be limited, in the moving process of the sealing plate, a soft plate can slide on the inner wall of the sealing plate, and therefore during installation, the sealing plate can slide on the inner wall of the sealing plate. The flexible plate on the surface of the sealing plate is tightly attached to the surface of the cable, rainwater is prevented from entering the cable to damage the cable, meanwhile, the rear portion of the shell is connected with the sleeve, the device can be conveniently installed, and the situation that when the cable needs to be maintained, dismounting is inconvenient, and the maintenance efficiency is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing devices, and particularly to a power cable sealing device. Background Art

[0002] Sealing is a component or measure to prevent fluid or solid particles from leaking between adjacent mating surfaces and to prevent foreign substances (such as dust and moisture) from entering the interior of machinery and equipment. Technology refers to the continuous change of production tools, equipment, devices, languages, digital data, information records, etc. from a low level to a high level in the continuous development of social productivity, which is called technology. Sealing technology is the continuous improvement of the level of components or measures to prevent fluid or solid particles from leaking between adjacent mating surfaces and to prevent foreign substances (such as dust and moisture) from entering the interior of machinery and equipment in the continuous development of social productivity.

[0003] The patent with the patent number CN113783158A relates to a power cable sealing device, including two cable wires. Insulating sleeves are sleeved on the outer surfaces of both cable wires. A fixing component is fixedly installed between the two cable wires. A waterproof component is fixedly installed on the outer surface of the fixing component. A sealing mechanism is fixedly installed inside the waterproof component. A sealing component is fixedly installed on the outer surface of the sealing mechanism. The fixing component includes a first fixing sleeve and a second fixing sleeve, and both the first fixing sleeve and the second fixing sleeve are fixedly installed on the outer surface of the cable wire. Through the setting of the fixing component and the sealing mechanism in this application, the fixed connection is relatively simple and can also increase the sealing effect. By rotating the threaded rod, the push ring is driven to move in the installation pipe through the connecting rod, and the movement of the installation pipe squeezes the second rubber ring to contract, making the second rubber ring fit more tightly on the outer surface of the insulating sleeve, thereby increasing the sealing effect of the entire device. However, the device is very cumbersome when sealing the cable, time-consuming and laborious, extremely inconvenient, and extremely affects the sealing efficiency during sealing. Therefore, a power cable sealing device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a power cable sealing device for the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a power cable sealing device, comprising a shell, a baffle is fixedly connected to the circumferential surface of the shell, a sleeve is installed on the circumferential surface of the shell, a clamping device is arranged on the inner wall of the shell, a cleaning device is arranged on the inner wall of the shell, a fixing device is arranged on the surface of the shell, the clamping device comprises a ring plate, a gear ring, a connecting rod, a gear 1, a toggle plate, a spring 1, a cam, a sealing plate, a soft plate, and a pushing block, the ring plate is fixedly connected to the inner wall of the shell, the gear ring is rotatably connected to the inner wall of the shell, the connecting rod is rotatably connected to the inner wall of the ring plate, the gear 1 is fixedly connected to the circumferential surface of the connecting rod, the toggle plate is fixedly connected to the circumferential surface of the gear ring, the spring 1 is fixedly connected to the inner wall of the ring plate, the cam is fixedly connected to the circumferential surface of the connecting rod, the sealing plate is slidably connected to the inner wall of the ring plate, and the soft plate is slidably connected to the inner wall of the sealing plate. The pushing block is fixedly connected to the circumferential surface of the gear ring, the gear ring is meshed with the gear one, the surface of the toggle plate is in contact with the inner wall of the shell, the front part of the ring plate is in contact with the rear part of the gear one, the inner wall of the ring plate is in contact with the circumferential surface of the cam, and the top of the spring one is fixedly connected to the bottom of the sealing plate, so that when the power cable starts to be installed, the cable is inserted into the entrance of the device, and after the cable is completely entered into the pipeline, the sealing plate is pushed to move upward, so that the cam is stuck in the groove on the surface of the sealing plate, and the sealing plate can be limited. During the movement of the sealing plate, the soft plate will slide on the inner wall of the sealing plate, so that during installation, the soft plate on the surface of the sealing plate will fit closely with the surface of the cable to prevent rainwater from entering the cable and causing damage to the cable. At the same time, the rear part of the shell is connected with a sleeve, which can facilitate the installation of the device and avoid the inconvenience of disassembly affecting the maintenance efficiency when the cable needs to be repaired.

[0006] Preferably, the cleaning device includes a first rotating column, a transmission wheel, a brush roller, a second gear, and a first fixing plate. The first rotating column is rotatably connected to the inner wall of the housing. The transmission wheel is fixedly connected to the circumferential surface of the first rotating column. The brush roller is rotatably connected to the front of the annular plate. The second gear is fixedly connected to the front of the brush roller. The first fixing plate is fixedly connected to the inner wall of the housing. The cleaning device further includes a third gear, a connecting plate, an L-shaped plate, and a support plate. The third gear is fixedly connected to the left side of the first rotating column. The connecting plate is fixedly connected to the circumferential surface of the housing. The L-shaped plate is slidably connected to the inner wall of the connecting plate. The support plate is fixedly connected to the front of the housing. The circumferential surface of the brush roller is rotatably connected to the inner wall of the first fixing plate. The second gear meshes with the third gear. The inner wall of the housing contacts the pushing block. When sealing the cable, the L-shaped plate supports the support plate, preventing the cable from pressing down too much due to its weight when inserting the cable, which may affect the sealing effect. At the same time, when inserting the cable, the surface of the cable contacts the surface of the transmission wheel, scraping off the dust on the cable surface and avoiding excessive soil adhesion on the cable surface, which may cause the sealing effect of the cable to deteriorate, thus improving the sealing effect of the device.

[0007] Preferably, the fixing device includes a housing, a second rotating column, a rotating plate, a convex block, and an inserting plate. The housing is fixedly connected to the circumferential surface of the outer shell. The second rotating column is rotatably connected to the inner wall of the housing. The rotating plate is fixedly connected to the circumferential surface of the second rotating column. The convex block is rotatably connected to the top of the rotating plate. The inserting plate is rotatably connected to the top of the rotating plate. The fixing device further includes a first pointed block, a second spring, a second pointed block, and a second fixing plate. The first pointed block is slidably connected to the inner wall of the inserting plate. The second spring is fixedly connected to the inner wall of the inserting plate. The second pointed block is fixedly connected to the rear of the second spring. The second fixing plate is fixedly connected to the inner wall of the inserting plate. The surface of the convex block contacts the inner wall of the housing. The surface of the inserting plate is slidably connected to the inner wall of the housing. The right side of the second pointed block is slidably connected to the left side of the second fixing plate. When installing the device, the inserting plate first enters the wall. Then, the convex block contacts the inside of the wall, generating pressure on the convex block and forcing the convex block to move downward, causing the first pointed block to insert into the wall, enhancing the fixing effect of the pipeline and preventing loosening during installation. At the same time, when the first pointed block contacts the wall, the first pointed block moves downward and contacts the second pointed block, driving the second pointed block to move, further enhancing the fixing effect of the device and ensuring the stability of the device during installation.

[0008] The present invention adopts the above technical solutions and can bring the following beneficial effects: 1. The power cable sealing device, through the coordinated operation among the shell, baffle, clamping device, ring plate, gear ring, connecting rod, gear one, toggle plate, spring one, cam, sealing plate, soft plate and pushing block, can be realized when the power cable is installed, the cable is inserted into the inlet of the device, and after the cable is completely entered into the pipeline, the sealing plate is pushed to move upward, so that the cam is stuck in the groove on the surface of the sealing plate, and the sealing plate can be limited. During the movement of the sealing plate, the soft plate will slide on the inner wall of the sealing plate, so that during installation, the soft plate on the surface of the sealing plate will fit closely with the surface of the cable, so as to prevent rainwater from entering the interior of the cable and causing damage to the cable. At the same time, the rear part of the shell is connected with a sleeve, which can facilitate the installation of the device and avoid the inconvenience of disassembly affecting the maintenance efficiency when the cable needs to be repaired.

[0009] 2. The power cable sealing device, through the coordinated operation among the rotating column 1, the transmission wheel, the brush roller, the gear 2, the fixing plate 1, the gear 3, the connecting plate, the L-shaped plate and the supporting plate, enables the L-shaped plate to support the supporting plate when sealing the cable, so as to avoid the sealing effect being affected by the excessive downward pressure of the cable due to the excessive weight of the cable when the cable is inserted. At the same time, when the cable is inserted, the surface of the cable will contact the surface of the transmission wheel, so as to scrape off the dust on the surface of the cable, so as to avoid excessive dirt adhering to the surface of the cable, which will lead to the deterioration of the sealing effect of the cable, thereby improving the sealing effect of the device.

[0010] 3. The power cable sealing device cooperates with the shell, the second rotating column, the rotating plate, the protrusion, the plug plate, the first sharp block, the second spring, the second sharp block, the second fixed plate, and the sleeve. When the device is installed, the plug plate will first enter the inside of the wall, and then the protrusion will contact the inside of the wall, thereby generating pressure on the protrusion, forcing the protrusion to move downward, so that the first sharp block is inserted into the inside of the wall, thereby enhancing the fixing effect of the pipeline and avoiding loosening during the installation process. At the same time, when the first sharp block comes into contact with the wall, the first sharp block will move downward and then come into contact with the second sharp block, thereby driving the second sharp block to move, thereby further enhancing the fixing effect of the device and ensuring the stability of the device during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A half-section view of the clamping device of the present invention; Figure 3 A half-section diagram of the cam structure of the present invention; Figure 4 It is a schematic diagram of the cleaning device of the present invention; Figure 5 A half-section view of the L-shaped plate structure of the present invention; Figure 6 A half-section diagram of the push block structure of the present invention; Figure 7 A half-section view of the fixing device of the present invention; Figure 8 It is a half-section view of the plugboard structure of the present invention.

[0012] In the figure: 1. shell; 2. baffle; 3. clamping device; 31. ring plate; 32. gear ring; 33. connecting rod; 34. gear one; 35. toggle plate; 36. spring one; 37. cam; 38. sealing plate; 39. soft plate; 310. push block; 4. cleaning device; 41. rotating column one; 42. transmission wheel; 43. brush roller; 44. gear two; 45. fixing plate one; 46. gear three; 47. connecting plate; 48. L-shaped plate; 49. support plate; 5. fixing device; 51. shell; 52. rotating column two; 53. rotating plate; 54. convex block; 55. plug plate; 56. pointed block one; 57. spring two; 58. pointed block two; 59. fixing plate two; 6. sleeve. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figures 1 - 8An embodiment of the present invention is: a power cable sealing device, comprising a shell 1, a baffle 2 is fixedly connected to the circumferential surface of the shell 1, a sleeve 6 is installed on the circumferential surface of the shell 1, and the rear of the shell 1 is connected with the sleeve 6, which can facilitate the installation of the device and avoid the inconvenience of disassembly affecting the maintenance efficiency when the cable needs to be repaired. The inner wall of the shell 1 is provided with a clamping device 3, the inner wall of the shell 1 is provided with a cleaning device 4, and the surface of the shell 1 is provided with a fixing device 5. The clamping device 3 includes a ring plate 31, a toothed ring 32, a connecting rod 33, a gear 34, a toggle plate 35, a spring 36, and a cam 3 7. Sealing plate 38, soft plate 39, pushing block 310, ring plate 31 is fixedly connected to the inner wall of housing 1, gear ring 32 is rotatably connected to the inner wall of housing 1, connecting rod 33 is rotatably connected to the inner wall of ring plate 31, gear 1 34 is fixedly connected to the circumferential surface of connecting rod 33, toggle plate 35 is fixedly connected to the circumferential surface of gear ring 32, spring 1 36 is fixedly connected to the inner wall of ring plate 31, cam 37 is fixedly connected to the circumferential surface of connecting rod 33, sealing plate 38 is slidably connected to the inner wall of ring plate 31, soft plate 39 is slidably connected to the inner wall of sealing plate 38, pushing block 310 is fixedly connected to The circumferential surface of the toothed ring 32, the toothed ring 32 and the gear 1 34 mesh with each other, the surface of the toggle plate 35 and the inner wall of the housing 1 are in contact with each other, the front of the ring plate 31 and the rear of the gear 1 34 are in contact with each other, the inner wall of the ring plate 31 and the circumferential surface of the cam 37 are in contact with each other, the top of the spring 1 36 is fixedly connected with the bottom of the sealing plate 38, and when the power cable is installed, the cable is inserted into the inlet of the device, and after the cable is completely entered into the pipeline, the toggle plate 35 is pushed, and the toggle plate 35 moves to drive the toothed ring 32 to rotate, and the rotation of the toothed ring 32 drives the push block 310 to rotate, and the toothed ring 32 rotates to drive the push block 310 to rotate. The rotation of ring 32 drives gear 1 34 to rotate, the rotation of gear 1 34 drives connecting rod 33 to rotate, the rotation of connecting rod 33 drives cam 37 to rotate, the rotation of cam 37 will contact sealing plate 38, so that the sealing plate 38 is pushed to move upward, so that cam 37 is stuck in the groove on the surface of sealing plate 38, and the sealing plate 38 can be limited. During the movement of sealing plate 38, soft plate 39 will slide on the inner wall of sealing plate 38, so that during installation, the soft plate 39 on the surface of sealing plate 38 will fit closely with the surface of the cable to prevent rainwater from entering the cable and causing damage to the cable.

[0015] The cleaning device 4 includes a first rotating column 41, a transmission wheel 42, a brush roller 43, a second gear 44, and a first fixing plate 45. The first rotating column 41 is rotatably connected to the inner wall of the housing 1. The transmission wheel 42 is fixedly connected to the circumferential surface of the first rotating column 41. The brush roller 43 is rotatably connected to the front of the ring plate 31. The second gear 44 is fixedly connected to the front of the brush roller 43. The first fixing plate 45 is fixedly connected to the inner wall of the housing 1. The cleaning device 4 further includes a third gear 46, a connecting plate 47, an L-shaped plate 48, and a support plate 49. The third gear 46 is fixedly connected to the left side of the first rotating column 41. The connecting plate 47 is fixedly connected to the circumferential surface of the housing 1. The L-shaped plate 48 is slidably connected to the inner wall of the connecting plate 47. The support plate 49 is fixedly connected to the front of the housing 1. When sealing the cable, the rotating push block 310 will contact the connecting plate 47, thereby pushing the connecting plate 47 to move, causing the L-shaped plate 48 to slide on the inner wall of the connecting plate 47, so that the L-shaped plate 48 supports the support plate 49, preventing the cable from pressing down too much due to its weight when inserting the cable, which affects its sealing effect. The circumferential surface of the brush roller 43 is rotatably connected to the inner wall of the first fixing plate 45. The second gear 44 meshes with the third gear 46. The inner wall of the housing 1 contacts the push block 310. At the same time, when inserting the cable, the surface of the cable will contact the surface of the transmission wheel 42, thereby driving the transmission wheel 42 to rotate through friction. The rotation of the transmission wheel 42 drives the rotation of the first rotating column 41. The rotation of the first rotating column 41 drives the rotation of the third gear 46. The rotation of the third gear 46 drives the rotation of the brush roller 43, thereby scraping the dust on the surface of the cable, preventing too much soil from adhering to the surface of the cable, which may cause the sealing effect of the cable to deteriorate, and improving the sealing effect of the device.

[0016] Working principle: When starting to install the power cable, insert the cable into the inlet of the device. After the cable completely enters the pipeline, at this time, push the toggle plate 35. The movement of the toggle plate 35 drives the rotation of the toothed ring 32. The rotation of the toothed ring 32 drives the rotation of the push block 310. The rotation of the toothed ring 32 drives the rotation of the first gear 34. The rotation of the first gear 34 drives the rotation of the connecting rod 33. The rotation of the connecting rod 33 drives the rotation of the cam 37. The rotation of the cam 37 will contact the sealing plate 38, causing the sealing plate 38 to move upward, and the cam 37 is stuck in the groove on the surface of the sealing plate 38, so that the sealing plate 38 can be limited. During the movement of the sealing plate 38, the flexible plate 39 will slide on the inner wall of the sealing plate 38, so that during installation, the flexible plate 39 on the surface of the sealing plate 38 will closely fit the surface of the cable, preventing rainwater from entering the cable and causing damage to the cable. At the same time, a sleeve 6 is connected to the rear of the housing 1, which can facilitate the installation of the device and prevent inconvenient disassembly from affecting the maintenance efficiency when the cable needs to be repaired.

[0017] When sealing the cable, the rotation of the pushing block 310 will contact the connecting plate 47, thereby pushing the connecting plate 47 to move, causing the L-shaped plate 48 to slide on the inner wall of the connecting plate 47, so that the L-shaped plate 48 supports the support plate 49, avoiding excessive downward pressure due to the heavy weight of the cable when inserting the cable, which affects its sealing effect. At the same time, when inserting the cable, the surface of the cable will contact the surface of the driving wheel 42, thereby driving the driving wheel 42 to rotate through friction. The rotation of the driving wheel 42 drives the rotation of the first rotating column 41. The rotation of the first rotating column 41 drives the rotation of the third gear 46. The rotation of the third gear 46 drives the rotation of the brush roller 43, thereby scraping the dust on the surface of the cable, avoiding excessive soil attached to the surface of the cable, which may lead to a poor sealing effect of the cable and improving the sealing effect of the device.

[0018] Please refer to Figures 1 - 8 On the basis of the above embodiment, in another embodiment of the present invention, the fixing device 5 includes a housing 51, a second rotating column 52, a rotating plate 53, a convex block 54, and an insertion plate 55. The housing 51 is fixedly connected to the circumferential surface of the outer shell 1. The second rotating column 52 is rotatably connected to the inner wall of the housing 51. The rotating plate 53 is fixedly connected to the circumferential surface of the second rotating column 52. The convex block 54 is rotatably connected to the top of the rotating plate 53. The insertion plate 55 is rotatably connected to the top of the rotating plate 53. The fixing device 5 further includes a first pointed block 56, a second spring 57, a second pointed block 58, and a second fixing plate 59. The first pointed block 56 is slidably connected to the inner wall of the insertion plate 55. When installing the device, the insertion plate 55 will first enter the wall. Secondly, the convex block 54 contacts the inside of the wall, thereby generating a pressure on the convex block 54, forcing the convex block 54 to move downward. The downward movement of the convex block 54 drives the rotation of the rotating plate 53. The rotation of the rotating plate 53 drives the rotation of the second rotating column 52. The movement of the rotating plate 53 drives the insertion plate 55 to move upward. The insertion plate 55 drives the first pointed block 56 to move, so that the first pointed block 56 is inserted into the wall, thereby enhancing the fixing effect of the pipeline and avoiding loosening during the installation process. The second spring 57 is fixedly connected to the inner wall of the insertion plate 55. The second pointed block 58 is fixedly connected to the rear of the second spring 57. The second fixing plate 59 is fixedly connected to the inner wall of the insertion plate 55. The surface of the convex block 54 contacts the inner wall of the housing 51. The surface of the insertion plate 55 is slidably connected to the inner wall of the housing 51. The right side of the second pointed block 58 is slidably connected to the left side of the second fixing plate 59. At the same time, when the first pointed block 56 contacts the wall, the first pointed block 56 will move downward and then contact the second pointed block 58, thereby driving the second pointed block 58 to move, further enhancing the fixing effect of the device and ensuring the stability of the device during installation.

[0019] Working principle: When installing the device, the plug board 55 first enters the interior of the wall. Secondly, the convex block 54 contacts the interior of the wall, generating pressure on the convex block 54, forcing the convex block 54 to move downward. The downward movement of the convex block 54 drives the rotating plate 53 to rotate. The rotation of the rotating plate 53 drives the second rotating column 52 to rotate. The movement of the rotating plate 53 drives the plug board 55 to move upward. The plug board 55 drives the first pointed block 56 to move, so that the first pointed block 56 is inserted into the interior of the wall, enhancing the fixing effect of the pipeline, avoiding loosening during the installation process. At the same time, when the first pointed block 56 contacts the wall, the first pointed block 56 will move downward and then contact the second pointed block 58, driving the second pointed block 58 to move, further enhancing the fixing effect of the device and ensuring the stability of the device during installation.

[0020] The present invention provides a power cable sealing device. There are many methods and ways to specifically implement this technical solution. The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by existing technologies.

Claims

1. A power cable sealing device, comprising a housing (1), characterized in that: A baffle (2) is fixedly connected to the circumferential surface of the outer shell (1), and a sleeve (6) is installed on the circumferential surface of the outer shell (1); The inner wall of the shell (1) is provided with a clamping device (3), the inner wall of the shell (1) is provided with a cleaning device (4), and the surface of the shell (1) is provided with a fixing device (5); The clamping device (3) comprises a ring plate (31), a toothed ring (32), a connecting rod (33), a gear one (34), a toggle plate (35), a spring one (36), a cam (37), a sealing plate (38), a soft plate (39), and a pushing block (310), wherein the ring plate (31) is fixedly connected to the inner wall of the housing (1), the toothed ring (32) is rotatably connected to the inner wall of the housing (1), the connecting rod (33) is rotatably connected to the inner wall of the ring plate (31), and the gear one (34) is ) is fixedly connected to the circumferential surface of the connecting rod (33), the toggle plate (35) is fixedly connected to the circumferential surface of the gear ring (32), the spring 1 (36) is fixedly connected to the inner wall of the ring plate (31), the cam (37) is fixedly connected to the circumferential surface of the connecting rod (33), the sealing plate (38) is slidably connected to the inner wall of the ring plate (31), the soft plate (39) is slidably connected to the inner wall of the sealing plate (38), and the pushing block (310) is fixedly connected to the circumferential surface of the gear ring (32).

2. A power cable sealing device according to claim 1, characterized in that: The toothed ring (32) and gear one (34) are meshed with each other, the surface of the toggle plate (35) is in contact with the inner wall of the housing (1), the front of the ring plate (31) is in contact with the rear of the gear one (34), the inner wall of the ring plate (31) is in contact with the circumferential surface of the cam (37), and the top of the spring one (36) is fixedly connected to the bottom of the sealing plate (38).

3. A power cable sealing device according to claim 2, characterized in that: The cleaning device (4) comprises a rotating column (41), a transmission wheel (42), a brush roller (43), a gear (44), and a fixed plate (45); the rotating column (41) is rotatably connected to the inner wall of the housing (1); the transmission wheel (42) is fixedly connected to the circumferential surface of the rotating column (41); the brush roller (43) is rotatably connected to the front part of the ring plate (31); the gear (44) is fixedly connected to the front part of the brush roller (43); and the fixed plate (45) is fixedly connected to the inner wall of the housing (1).

4. A power cable sealing device according to claim 3, characterized in that: The cleaning device (4) further comprises a gear three (46), a connecting plate (47), an L-shaped plate (48), and a support plate (49); the gear three (46) is fixedly connected to the left side of the rotating column one (41); the connecting plate (47) is fixedly connected to the circumferential surface of the housing (1); the L-shaped plate (48) is slidably connected to the inner wall of the connecting plate (47); and the support plate (49) is fixedly connected to the front part of the housing (1).

5. A power cable sealing device according to claim 4, characterized in that: The circumferential surface of the brush roller (43) is rotatably connected to the inner wall of the fixing plate 1 (45), the gear 2 (44) and the gear 3 (46) are meshed with each other, and the inner wall of the housing (1) and the pushing block (310) are in contact with each other.

6. A power cable sealing device according to claim 5, characterized in that: The fixing device (5) comprises a shell (51), a second rotating column (52), a rotating plate (53), a convex block (54), and an insert plate (55); the shell (51) is fixedly connected to the circumferential surface of the outer shell (1); the second rotating column (52) is rotatably connected to the inner wall of the shell (51); the rotating plate (53) is fixedly connected to the circumferential surface of the second rotating column (52); the convex block (54) is rotatably connected to the top of the rotating plate (53); and the insert plate (55) is rotatably connected to the top of the rotating plate (53).

7. A power cable sealing device according to claim 6, characterized in that: The fixing device (5) further comprises a first pointed block (56), a second spring (57), a second pointed block (58), and a second fixing plate (59); the first pointed block (56) is slidably connected to the inner wall of the plug plate (55); the second spring (57) is fixedly connected to the inner wall of the plug plate (55); the second pointed block (58) is fixedly connected to the rear of the second spring (57); and the second fixing plate (59) is fixedly connected to the inner wall of the plug plate (55).

8. A power cable sealing device according to claim 7, characterized in that: The surface of the protrusion (54) is in contact with the inner wall of the shell (51), the surface of the plug plate (55) is slidably connected to the inner wall of the shell (51), and the right side of the second pointed block (58) is slidably connected to the left side of the second fixed plate (59).

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