Optical cable lower leading through pipe sealing device and use method thereof

Abstract

The invention belongs to the technical field of optical cable penetrating pipe sealing devices, and discloses an optical cable downward leading penetrating pipe sealing device and a using method thereof.The optical cable downward leading penetrating pipe sealing device comprises a shell, a conical shell is fixedly installed at the bottom end of the shell, a fixing assembly is arranged in the shell and comprises fixing plates arranged in the shell, and the fixing plates are evenly distributed in an annular array; one side of each fixing plate is fixedly connected with a rack plate, the rack plates are slidably mounted in the shell, one side of each rack plate is connected with a gear in a meshed mode, each gear is mounted in the annular gear in a meshed mode, and a first rotating shaft is fixedly mounted in each gear; wherein one first rotating shaft is rotationally installed in the shell through the driving assembly, during working, the lower leading end of the optical cable is firstly placed in the shell, then the driving assembly drives the fixing plates to move, the multiple fixing plates move synchronously to fix the optical cable, the fixing mode is simple and rapid, and the convenience degree of operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cable tube-threading and sealing devices, and specifically relates to an optical cable down-leading tube-threading and sealing device and a use method thereof. Background Art

[0002] The optical cable pipe-threading and sealing device is a device specially designed for threading the optical cable and effectively sealing it during the optical cable threading process. This device plays an important role in the optical cable line project, ensuring the safe, stable and efficient laying of the optical cable.

[0003] After searching, such as patent: CN214041815U, an optical cable lowering sealing device includes a conical shell, a driving component and a reinforcing component; the conical shell: a circular groove cover is provided on its upper surface, a circular ring plate is provided inside the circular groove cover, a conical iron block is provided at the inner bottom end of the conical shell, through holes are evenly provided on the outer arc surface of the circular groove cover, a fixing bolt is connected by thread in the through hole on the far left, and balls are rollingly connected in the rolling grooves evenly provided at the bottom of the circular groove cover; the driving component: the bottom end is slidably connected with the inner wall of the gap between the circular groove cover and the circular ring plate; the reinforcing component: it is respectively arranged inside the sliding grooves evenly provided on the circular ring plate, and the outer end of the reinforcing component corresponds to the bottom end position of the driving component. The optical cable lowering sealing device can quickly seal the lower end of the optical cable, and can further reinforce the optical cable after sealing, to ensure that the optical cable will not fall off from the sealing device during the lowering operation, thereby improving the efficiency of the lowering operation of the optical cable;

[0004] When the current optical cable lower pipe sealing device is used, it is necessary to first unscrew the bolts, then push the rotating rod to fix the optical cable, and finally install the bolts. This fixing method involves multiple operation links, and the operation process is cumbersome, which reduces the efficiency of the entire operation process and thus affects the overall work progress. Summary of the invention

[0005] The object of the present invention is to provide a sealing device for lower lead-through pipe of optical cable and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above object, the present invention provides the following technical solution: an optical cable lower lead-through pipe sealing device, comprising a housing, a conical shell is fixedly installed at the bottom end of the housing, and a fixing component is arranged inside the housing;

[0007] Among them, the fixing assembly includes a fixing plate arranged inside the shell, and the fixing plates are evenly distributed in a ring array. One side of each of the fixing plates is fixedly connected with a rack plate, and the rack plate is slidably installed inside the shell. One side of each of the rack plates is meshed with a gear, and each of the gears is meshed and installed inside the ring gear. A first rotating shaft is fixedly installed inside each of the gears, and one of the first rotating shafts is rotatably installed inside the shell through a driving assembly.

[0008] As a further technical solution of the present invention, the driving assembly includes a worm wheel fixedly mounted on the top end of the first rotating shaft, one side of the worm wheel is meshingly connected with a worm, one end of the worm is fixedly mounted with a rotating block, and the rotating block is arranged on one side of the housing.

[0009] As a further technical solution of the present invention, an airbag is installed inside the shell, the airbag is arranged above the fixing plate, and an inflation component is installed between the airbag and the shell.

[0010] As a further technical solution of the present invention, the inflation component includes a second pipe fixedly installed on one side of the airbag, the end of the second pipe away from the airbag is fixedly connected to the first pipe and the third pipe, the interior of the first pipe is slidably connected to a piston, the internal thread of the piston is connected to a reciprocating screw, one end of the reciprocating screw is fixedly installed with a second bevel gear, one side of the second bevel gear is meshingly connected with the first bevel gear, the inner wall of the first bevel gear is fixedly installed with a third rotating shaft, the outer wall of the third rotating shaft is installed with a pulley group, the top of the pulley group is installed with a second rotating shaft, the second rotating shaft is rotatably installed inside a support plate, the support plate is fixedly installed on the top of the shell, and the outer wall of the second rotating shaft is fixedly installed with a roller.

[0011] As a further technical solution of the present invention, a second one-way valve is installed on the outer wall of the third pipeline.

[0012] As a further technical solution of the present invention, a first one-way valve is installed on the outer wall of the second pipeline.

[0013] As a further technical solution of the present invention, elastic pads are arranged inside the roller, and the elastic pads are evenly distributed in a ring array.

[0014] As a further technical solution of the present invention, a fourth pipe is fixedly connected to one side of the airbag, the fourth pipe is installed inside the shell, and a sealing plug is installed at the top end of the fourth pipe.

[0015] As a further technical solution of the present invention, a threaded rod is embedded in the interior of the sealing plug, and the threaded rod is installed inside the shell.

[0016] A method for using an optical cable lower lead-through pipe sealing device comprises the following steps:

[0017] S1: When working, firstly place the lower lead end of the optical cable into the housing, then rotate the rotating block to drive the worm to rotate, the rotation of the worm drives the rotation of the worm wheel, the rotation of the worm wheel drives the rotation of the first rotating shaft, the rotation of the first rotating shaft drives the rotation of the gear, the rotation of the gear drives the rotation of the ring gear, the rotation of the ring gear drives other gears to rotate synchronously, the rotation of the gear drives the movement of the rack plate, the movement of the rack plate drives the movement of the fixed plate, so that multiple fixed plates move synchronously to fix the optical cable;

[0018] S2: During the process of embedding the optical cable into the shell, the outer wall of the optical cable contacts the outer wall of the roller and drives the roller to rotate. The rotation of the roller drives the rotation of the second rotating shaft. The rotation of the second rotating shaft drives the rotation of the third rotating shaft through the pulley group. The rotation of the third rotating shaft drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the second bevel gear. The rotation of the second bevel gear drives the rotation of the reciprocating screw. The rotation of the reciprocating screw drives the piston to reciprocate inside the first pipe, so that the external gas enters the inside of the second pipe from the third pipe and finally enters the inside of the airbag, so that the airbag expands and inflates. The airbag fits tightly with the inner wall of the cable for sealing.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention is provided with a fixing component. When working, firstly, the lower lead end of the optical cable is placed in the housing, and then the first rotating shaft is driven to rotate by the driving component. The rotation of the first rotating shaft drives the rotation of the gear. The rotation of the gear drives the rotation of the ring gear. The rotation of the ring gear drives other gears to rotate synchronously. The rotation of the gear drives the movement of the rack plate. The movement of the rack plate drives the movement of the fixing plate. Multiple fixing plates move synchronously to fix the optical cable. The fixing method is simple and fast, which improves the convenience of operation.

[0021] 2. The present invention arranges a driving assembly. When fixing the optical cable, the rotating block drives the worm to rotate. The rotation of the worm drives the worm wheel. The rotation of the worm wheel drives the first rotating shaft to rotate, thereby driving the fixing assembly to fix the optical cable. After the optical cable is fixed by the worm and worm wheel transmission, it will not be reversed due to the reverse effect of the load, so that the optical cable can be kept in the shell during the downward pulling process, which helps to improve the stability of the device.

[0022] 3. The present invention provides an inflation component. During the process of embedding the optical cable into the shell, the outer wall of the optical cable contacts the outer wall of the roller and drives the roller to rotate. The rotation of the roller drives the rotation of the second rotating shaft. The rotation of the second rotating shaft drives the rotation of the third rotating shaft through a pulley group. The rotation of the third rotating shaft drives the rotation of the first bevel gear. The rotation of the first bevel gear drives the rotation of the second bevel gear. The rotation of the second bevel gear drives the rotation of the reciprocating screw. The rotation of the reciprocating screw drives the piston to reciprocate inside the first pipe, so that external gas enters the inside of the second pipe from the third pipe and finally enters the inside of the airbag, causing the airbag to expand and inflate, so that the inner wall of the airbag fits tightly with the inner wall of the cable, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 4 It is a schematic cross-sectional view of the structure of the shell of the present invention;

[0027] Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 6 It is a structural schematic diagram of the ring gear of the present invention.

[0029] In the figure: 1, shell; 2, conical shell; 3, fixed plate; 4, rack plate; 5, gear; 6, first rotating shaft; 7, worm gear; 8, worm; 9, rotating block; 10, ring gear; 11, airbag; 12, roller; 13, support plate; 14, second rotating shaft; 15, pulley group; 16, third rotating shaft; 17, first bevel gear; 18, second bevel gear; 19, reciprocating screw; 20, piston; 21, first pipeline; 22, second pipeline; 23, first one-way valve; 24, third pipeline; 25, second one-way valve; 26, elastic pad; 27, sealing plug; 28, threaded rod; 29, fourth pipeline. DETAILED DESCRIPTION

[0030] 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.

[0031] like Figures 1 to 6 As shown, in an embodiment of the present invention, a sealing device for a lower lead-through pipe of an optical cable comprises a housing 1, a conical shell 2 is fixedly mounted on the bottom end of the housing 1, and a fixing component is arranged inside the housing 1;

[0032] Among them, the fixing component includes a fixing plate 3 arranged inside the shell 1, and the fixing plates 3 are evenly distributed in a ring array. One side of each fixing plate 3 is fixedly connected with a rack plate 4, and the rack plate 4 is slidably installed inside the shell 1. One side of each rack plate 4 is meshed with a gear 5, and each gear 5 is meshed and installed inside the ring gear 10. A first rotating shaft 6 is fixedly installed inside each gear 5, and one of the first rotating shafts 6 is rotatably installed inside the shell 1 through a driving component.

[0033] Through the setting of the fixing component, when working, first the lower lead-in end of the optical cable is placed in the housing 1, and then the first rotating shaft 6 is driven to rotate through the driving component, the rotation of the first rotating shaft 6 drives the rotation of the gear 5, the rotation of the gear 5 drives the rotation of the ring gear 10, the rotation of the ring gear 10 drives the other gears 5 to rotate synchronously, the rotation of the gear 5 drives the movement of the rack plate 4, the movement of the rack plate 4 drives the movement of the fixing plate 3, so that multiple fixing plates 3 move synchronously to fix the optical cable, the fixing method is simple and fast, and the convenience of operation is improved.

[0034] like Figures 1 to 6 As shown, the driving assembly includes a worm wheel 7 fixedly mounted on the top end of the first rotating shaft 6 , one side of the worm wheel 7 is meshingly connected with a worm 8 , one end of the worm 8 is fixedly mounted with a rotating block 9 , and the rotating block 9 is arranged on one side of the housing 1 .

[0035] Through the setting of the driving component, when the optical cable is fixed, the worm 8 is driven to rotate by rotating the rotating block 9, the rotation of the worm 8 drives the rotation of the worm wheel 7, the rotation of the worm wheel 7 drives the rotation of the first rotating shaft 6, thereby driving the fixing component to fix the optical cable. After the optical cable is fixed by the transmission of the worm 8 and the worm wheel 7, it will not be reversed due to the reverse effect of the load, so that the optical cable remains in the shell 1 during the downward pulling process, which helps to improve the stability of the device.

[0036] like Figures 1 to 5As shown, an airbag 11 is installed inside the shell 1 , the airbag 11 is arranged above the fixing plate 3 , and an inflation assembly is installed between the airbag 11 and the shell 1 .

[0037] The airbag 11 is used to seal the optical cable and the housing 1 to prevent external moisture, dust, insects or other impurities from entering the inside of the tube, thereby protecting the optical cable from damage and ensuring the stability and reliability of its transmission performance.

[0038] like Figures 1 to 5 As shown, the inflation component includes a second pipe 22 fixedly mounted on one side of the airbag 11, the end of the second pipe 22 away from the airbag 11 is fixedly connected to the first pipe 21 and the third pipe 24, the interior of the first pipe 21 is slidably connected to the piston 20, the internal thread of the piston 20 is connected to the reciprocating screw 19, one end of the reciprocating screw 19 is fixedly mounted to the second bevel gear 18, one side of the second bevel gear 18 is meshingly connected to the first bevel gear 17, the inner wall of the first bevel gear 17 is fixedly mounted with the third rotating shaft 16, the outer wall of the third rotating shaft 16 is mounted with a pulley group 15, the top of the pulley group 15 is mounted with the second rotating shaft 14, the second rotating shaft 14 is rotatably mounted inside the support plate 13, the support plate 13 is fixedly mounted on the top of the shell 1, and the outer wall of the second rotating shaft 14 is fixedly mounted with a roller 12.

[0039] By setting the inflation component, in the process of embedding the optical cable into the shell 1, the outer wall of the optical cable contacts the outer wall of the roller 12 and drives the roller 12 to rotate, and the rotation of the roller 12 drives the rotation of the second rotating shaft 14, and the rotation of the second rotating shaft 14 drives the third rotating shaft 16 to rotate through the pulley group 15, and the rotation of the third rotating shaft 16 drives the rotation of the first bevel gear 17, and the rotation of the first bevel gear 17 drives the rotation of the second bevel gear 18, and the rotation of the second bevel gear 18 drives the rotation of the reciprocating screw 19, and the rotation of the reciprocating screw 19 drives the piston 20 to reciprocate inside the first pipe 21, so that the external gas enters the inside of the second pipe 22 from the third pipe 24, and finally enters the inside of the airbag 11, so that the airbag 11 expands and inflates, so that the inner wall of the airbag 11 is tightly fitted with the inner wall of the cable, thereby improving the sealing effect.

[0040] like Figure 5 As shown, a second one-way valve 25 is installed on the outer wall of the third pipeline 24 .

[0041] like Figure 5 As shown, a first one-way valve 23 is installed on the outer wall of the second pipeline 22 .

[0042] By providing the first one-way valve 23 and the second one-way valve 25 , gas is prevented from being discharged from the third pipeline 24 , thereby improving the stability during sealing.

[0043] like Figure 5As shown, elastic pads 26 are arranged inside the roller 12, and the elastic pads 26 are evenly distributed in a ring array.

[0044] The roller 12 and the elastic pad 26 are both elastically arranged;

[0045] When installing the optical cable, if the diameter of the down-lead optical cable changes, the roller 12 can fully contact the surface of the optical cable through the elasticity of the roller 12 and the elastic pad 26, and can contact optical cables of different diameters, thereby improving the adaptability of the device.

[0046] like Figure 4 As shown, a fourth pipe 29 is fixedly connected to one side of the airbag 11 . The fourth pipe 29 is installed inside the housing 1 . A sealing plug 27 is installed at the top end of the fourth pipe 29 .

[0047] When the device is in use, the rotating block 9 of the conical shell 2 is blocked by the sealing plug 27 to prevent the gas inside the airbag 11 from being discharged.

[0048] like Figure 4 As shown, a threaded rod 28 is embedded in the sealing plug 27 , and the threaded rod 28 is installed in the housing 1 .

[0049] When the optical cable needs to be removed, the threaded rod 28 is rotated to slide the sealing plug 27 out of the rotating block 9 of the conical shell 2 for exhaust.

[0050] A method for using an optical cable lower lead-through pipe sealing device comprises the following steps:

[0051] S1: When working, firstly, the lower lead end of the optical cable is placed in the housing 1, and then the worm 8 is driven to rotate by rotating the rotating block 9, the rotation of the worm 8 drives the rotation of the worm wheel 7, the rotation of the worm wheel 7 drives the rotation of the first rotating shaft 6, the rotation of the first rotating shaft 6 drives the rotation of the gear 5, the rotation of the gear 5 drives the rotation of the ring gear 10, the rotation of the ring gear 10 drives the other gears 5 to rotate synchronously, the rotation of the gear 5 drives the movement of the rack plate 4, the movement of the rack plate 4 drives the movement of the fixed plate 3, so that multiple fixed plates 3 move synchronously to fix the optical cable;

[0052] S2: During the process of embedding the optical cable into the housing 1, the outer wall of the optical cable contacts the outer wall of the roller 12 and drives the roller 12 to rotate. The rotation of the roller 12 drives the rotation of the second rotating shaft 14. The rotation of the second rotating shaft 14 drives the third rotating shaft 16 to rotate through the pulley set 15. The rotation of the third rotating shaft 16 drives the rotation of the first bevel gear 17. The rotation of the first bevel gear 17 drives the rotation of the second bevel gear 18. The rotation of the second bevel gear 18 drives the rotation of the reciprocating screw 19. The rotation of the reciprocating screw 19 drives the piston 20 to reciprocate inside the first pipe 21, so that the external gas enters the inside of the second pipe 22 from the third pipe 24, and finally enters the inside of the airbag 11, so that the airbag 11 expands and inflates. The airbag 11 fits tightly with the inner wall of the cable for sealing.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An optical cable lower lead-through pipe sealing device, comprising a housing (1), characterized in that: A conical shell (2) is fixedly mounted on the bottom end of the shell (1), and a fixing component is arranged inside the shell (1); The fixing assembly comprises a fixing plate (3) arranged inside the housing (1), the fixing plates (3) are evenly distributed in a ring array, one side of each fixing plate (3) is fixedly connected to a rack plate (4), the rack plate (4) is slidably mounted inside the housing (1), one side of each rack plate (4) is meshingly connected to a gear (5), each gear (5) is meshingly mounted inside a ring gear (10), and a first rotating shaft (6) is fixedly mounted inside each gear (5), and one of the first rotating shafts (6) is rotatably mounted inside the housing (1) through a driving assembly.

2. The optical cable lower lead-through pipe sealing device according to claim 1, characterized in that: The driving assembly comprises a worm wheel (7) fixedly mounted on the top end of a first rotating shaft (6); one side of the worm wheel (7) is meshingly connected with a worm (8); one end of the worm (8) is fixedly mounted with a rotating block (9); and the rotating block (9) is arranged on one side of the housing (1).

3. The optical cable lower lead-through pipe sealing device according to claim 1, characterized in that: An airbag (11) is installed inside the shell (1), the airbag (11) is arranged above the fixing plate (3), and an inflation component is installed between the airbag (11) and the shell (1).

4. The optical cable lower lead-through pipe sealing device according to claim 3, characterized in that: The inflation assembly comprises a second pipe (22) fixedly mounted on one side of the airbag (11); an end of the second pipe (22) away from the airbag (11) is fixedly connected to the first pipe (21) and the third pipe (24); a piston (20) is slidably connected inside the first pipe (21); a reciprocating screw (19) is threadedly connected inside the piston (20); a second bevel gear (18) is fixedly mounted on one end of the reciprocating screw (19); and one side of the second bevel gear (18) is meshed with the A first bevel gear (17) is connected, a third rotating shaft (16) is fixedly mounted on the inner wall of the first bevel gear (17), a pulley group (15) is mounted on the outer wall of the third rotating shaft (16), a second rotating shaft (14) is mounted on the top of the pulley group (15), the second rotating shaft (14) is rotatably mounted inside a support plate (13), the support plate (13) is fixedly mounted on the top of the housing (1), and a roller (12) is fixedly mounted on the outer wall of the second rotating shaft (14).

5. The optical cable lower lead-through pipe sealing device according to claim 4, characterized in that: A second one-way valve (25) is installed on the outer wall of the third pipeline (24).

6. The optical cable lower lead-through pipe sealing device according to claim 4, characterized in that: A first one-way valve (23) is installed on the outer wall of the second pipeline (22).

7. The optical cable lower lead-through pipe sealing device according to claim 4, characterized in that: Elastic pads (26) are arranged inside the roller (12), and the elastic pads (26) are evenly distributed in a ring array.

8. The optical cable lower lead-through pipe sealing device according to claim 3, characterized in that: A fourth pipe (29) is fixedly connected to one side of the airbag (11); the fourth pipe (29) is installed inside the housing (1); and a sealing plug (27) is installed at the top end of the fourth pipe (29).

9. The optical cable lower lead-through pipe sealing device according to claim 8, characterized in that: A threaded rod (28) is embedded in the interior of the sealing plug (27), and the threaded rod (28) is installed inside the housing (1).

10. A method for using a sealing device for a lower optical cable lead-through pipe, the method being applicable to the sealing device for a lower optical cable lead-through pipe as claimed in claims 1 to 9, characterized in that: The following steps are involved: S1: When working, firstly, the lower lead end of the optical cable is placed in the housing (1), and then the worm (8) is driven to rotate by rotating the rotating block (9), the rotation of the worm (8) drives the rotation of the worm wheel (7), the rotation of the worm wheel (7) drives the rotation of the first rotating shaft (6), the rotation of the first rotating shaft (6) drives the rotation of the gear (5), the rotation of the gear (5) drives the rotation of the ring gear (10), the rotation of the ring gear (10) drives the other gears (5) to rotate synchronously, the rotation of the gear (5) drives the movement of the rack plate (4), the movement of the rack plate (4) drives the movement of the fixing plate (3), so that the multiple fixing plates (3) move synchronously to fix the optical cable; S2: During the process of embedding the optical cable into the housing (1), the outer wall of the optical cable contacts the outer wall of the roller (12) and drives the roller (12) to rotate. The rotation of the roller (12) drives the second rotating shaft (14) to rotate. The rotation of the second rotating shaft (14) drives the third rotating shaft (16) to rotate through the pulley group (15). The rotation of the third rotating shaft (16) drives the first bevel gear (17). The rotation of the first bevel gear (17) drives the second bevel gear (18). The rotation of the second bevel gear (18) drives the reciprocating screw (19). The rotation of the reciprocating screw (19) drives the piston (20) to reciprocate inside the first pipe (21), so that the external gas enters the inside of the second pipe (22) from the third pipe (24) and finally enters the inside of the airbag (11), so that the airbag (11) expands and inflates. The airbag (11) is tightly fitted with the inner wall of the cable to be sealed.

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