Joint box sealing structure and joint box

Abstract

The utility model relates to a connector box sealing structure and a connector box, and the connector box sealing structure comprises at least two pressing parts which are connected through a driving part; the sealing module is installed between the at least two pressing pieces, the sealing module comprises a gel block and fixing plates fixedly arranged on the two opposite sides of the gel block, and the fixing plate on each side of the gel block is locked to the pressing piece on the side through a fixing piece detachably connected with the fixing plate; the driving part is configured to drive the at least two pressing parts to move in the direction close to each other or away from each other, so that the pressing parts drive the gel block to be compressed or stretched through the fixing part. The fixing plates on the two opposite sides of the gel block are fixed to the different pressing pieces through the fixing pieces correspondingly, when the driving piece drives the pressing pieces to move in the direction away from each other, the pressing pieces drive the fixing plates to move through the fixing pieces, then the gel block is driven to be stretched, the gel block can be stretched even if the gel block is aged, and taking out of the sealing module is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of optical fiber communication, and in particular to a joint box sealing structure and a joint box. Background Art

[0002] At present, the splice box is a terminal box used for optical fiber connection, which is mainly used for optical fiber splicing and optical cable connection between different sections of optical cables. It has the function of protecting the ends and interfaces of optical fibers, and can effectively protect optical cables from mechanical and environmental influences during indoor and outdoor wiring, ensuring the quality and stability of optical fiber connections.

[0003] In the related art, a conventional gel joint box generally includes a box body, in which an optical cable fixing structure and a gel sealing module are arranged. The optical cable fixing structure can fix the optical cable, and the gel sealing module can seal the optical cable, so that water or dust outside the box body cannot enter the box body. A gel material for sealing is arranged in the gel sealing module. The gel material is relatively soft and convenient for compression and sealing. However, the gel material is not easy to rebound after aging in outdoor use, which is not conducive to the removal of the gel module when the gel joint box is repeatedly assembled with optical cables.

[0004] Therefore, it is necessary to design a new joint box sealing structure and a joint box to overcome the above problems. Summary of the invention

[0005] The present application provides a joint box sealing structure and a joint box, which can solve the technical problem in the related art that the gel material is not easy to rebound, which is not conducive to the removal of the gel module.

[0006] In the first aspect, an embodiment of the present application provides a joint box sealing structure, which includes: at least two pressing parts, at least two of the pressing parts are connected by a driving part; a sealing module, which is installed between the at least two pressing parts, and the sealing module includes a gel block and a fixing plate fixed on opposite sides of the gel block, and the fixing plate on each side of the gel block is locked to the pressing part on that side by a fixing part detachably connected to the fixing plate; the driving part is configured to drive at least two of the pressing parts to move in a direction of approaching or moving away from each other, so that the pressing parts drive the gel block to be compressed or stretched through the fixing parts.

[0007] In combination with the first aspect, in one embodiment, the fixing member is slidably mounted on the fixing plate, and the fixing member is buckled with the pressing member; when the fixing member is pulled along a first direction, the fixing member slides relative to the fixing plate, and the fixing member is unlocked from the pressing member.

[0008] In combination with the first aspect, in one embodiment, the pressing piece is provided with a first snap-fitting portion, and the fixing piece is provided with a second snap-fitting portion, and the pressing piece and the fixing piece are snap-fitted with each other through the first snap-fitting portion and the second snap-fitting portion to limit the axial movement of the sealing module; the fixing plate is provided with a stopper, and the first snap-fitting portion is radially stopped at the outer side of the stopper.

[0009] In combination with the first aspect, in one embodiment, the fixed plate is provided with a slide rail, and the fixed plate forms a retaining wall on one side of the slide rail, the fixed part is slidably installed on the fixed plate through the slide rail, and the fixed part is provided with a cantilever, the cantilever has a matching point, and the retaining wall is radially stopped at the outside of the matching point; when the fixed part is pulled along the first direction, the matching point passes over the retaining wall, and the second buckling portion moves radially to the outside of the first buckling portion, so that the fixed part and the pressing part are unlocked.

[0010] In combination with the first aspect, in one embodiment, the fixing member is provided with a slide groove, and a first limiting portion is formed at one end of the slide groove, the fixing plate is provided with a slide rail, the slide rail is inserted into the slide groove, and the length of the slide rail is less than the length of the slide groove; when the fixing member moves along the first direction until the first limiting portion contacts the slide rail, the slide rail prevents the fixing member from separating from the fixing plate.

[0011] In combination with the first aspect, in one embodiment, the fixing plate is further provided with a stopping portion, the stopping portion and the slide rail are radially spaced apart from each other along the sealing module, the fixing member is provided with a second limiting portion corresponding to the stopping portion, and the stopping portion is radially stopped at the inner side of the second limiting portion.

[0012] In combination with the first aspect, in one embodiment, the fixing member is provided with an avoidance groove at a position corresponding to the cantilever, and the avoidance groove passes through the fixing member.

[0013] In combination with the first aspect, in one embodiment, the gel block includes an inner gel block and an outer gel block, and the inner gel block and the outer gel block form an optical cable through-hole; the fixing plates are fixed on opposite sides of the inner gel block and the outer gel block, and the fixing plates on the outer gel block are locked to the pressing piece through the fixing piece.

[0014] In combination with the first aspect, in one embodiment, at least two of the pressing parts form a sealed cavity, the sealing module is installed in the sealed cavity, and the inner wall of the sealed cavity protrudes into the sealed cavity to form an insert plate; the fixing plate on the inner gel block is provided with a slot, and the slot is inserted into the insert plate.

[0015] In combination with the first aspect, in one embodiment, one of the pressing parts forms a support surface in the sealing cavity, the plug plate on the pressing part is connected to the support surface, and the support surface is coplanar with the surface of the plug plate on the pressing part; the plug plate on the other pressing part is spaced apart from the outer edge of the pressing part, so that the inner wall of the sealing cavity forms a vertical surface extending in the axial direction between the plug plate and the outer edge of the pressing part.

[0016] In combination with the first aspect, in one embodiment, the pressing part includes a cylinder and a plurality of pressure plates spaced apart along the circumferential direction of the cylinder, the sealing module is installed between two adjacent pressure plates, one end of the fixing part is hinged to one of the pressure plates, and the other end is buckled to the adjacent pressure plate on the same pressing part.

[0017] In combination with the first aspect, in one embodiment, the fixing plate is provided with a first plug-in portion, and the fixing member is provided with a second plug-in portion, and the second plug-in portion and the first plug-in portion are plugged into each other.

[0018] In a second aspect, an embodiment of the present application provides a joint box, which includes a box body and the above-mentioned joint box sealing structure installed in the box body.

[0019] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0020] The fixing plates on the opposite sides of the gel block can be fixed to different pressing parts respectively through the fixing parts. When the driving part drives the pressing parts to move in directions away from each other, the pressing parts can drive the fixing plates to move through the fixing parts, thereby driving the gel block to stretch. Even if the gel block is aged, the gel block can still be stretched, which is beneficial to the removal of the sealing module and solves the technical problem in the related technology that the gel material is not easy to rebound, which is not conducive to the removal of the gel module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the exploded structure of a joint box sealing structure provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the exploded structure of the sealing module and the pressing piece provided in the embodiment of the present application;

[0024] Figure 3A schematic diagram of the decomposed structure of the outer gel block and the inner gel block provided in the embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of the joint box sealing structure provided in an embodiment of the present application in an unlocked state;

[0026] Figure 5 A schematic diagram of the structure of the joint box sealing structure provided in an embodiment of the present application in a locked state;

[0027] Figure 6 for Figure 4 A top view schematic diagram of

[0028] Figure 7 for Figure 5 A top view schematic diagram of

[0029] Figure 8 A schematic top view of a fixing member provided in an embodiment of the present application sliding out of a fixing plate;

[0030] Fig. 9 A schematic diagram of the exploded structure of the sealing module provided in an embodiment of the present application;

[0031] Fig.10 A schematic diagram of the combined structure of the sealing module provided in an embodiment of the present application;

[0032] Fig.11 A schematic diagram of a three-dimensional structure in which a fixing member provided in an embodiment of the present application slides out of a fixing plate;

[0033] Fig.12 A schematic diagram of the combined structure of the fixing plate and the external gel block provided in an embodiment of the present application;

[0034] Fig.13 A schematic diagram of the three-dimensional structure of a fixing member provided in an embodiment of the present application;

[0035] Fig.14 A schematic diagram of the combined structure of the fixing plate and the inner gel block provided in an embodiment of the present application;

[0036] Fig.15 A schematic cross-sectional view of a sealing module provided in an embodiment of the present application;

[0037] Fig.16 A schematic cross-sectional view of another position of the sealing module provided in an embodiment of the present application;

[0038] Fig.17 A cross-sectional schematic diagram of the embodiment of the present application when the mating point passes over the retaining wall;

[0039] Fig.18 A schematic diagram of the exploded structure of another joint box sealing structure provided in an embodiment of the present application;

[0040] Fig.19 A schematic diagram of the exploded structure of an outer gel block and an inner gel block of another joint box sealing structure;

[0041] Fig. 20 for Fig.18 A schematic diagram of the structure of the middle sealing module being installed into the press-fit part;

[0042] Fig.21 for Fig. 20 A schematic diagram of the structure in which the fixing part and the pressing part are locked;

[0043] Fig. 22 A cross-sectional schematic diagram of another joint box sealing structure provided in an embodiment of the present application;

[0044] Fig.23 A schematic cross-sectional view of a junction box provided in an embodiment of the present application.

[0045] In the figure:

[0046] 1. Pressing piece; 11. First buckling part; 12. Sealing cavity; 121. First inner wall; 122. Second inner wall; 13. Insert plate; 14. Support surface; 15. Vertical surface; 16. Cylinder; 17. Pressing plate; 171. Card slot;

[0047] 2. Driving parts;

[0048] 3. Sealing module; 31. Gel block; 311. Inner gel block; 312. Outer gel block; 313. Optical cable penetration hole;

[0049] 32, fixed plate; 321, stopper; 322, slide rail; 323, stop wall; 324, stopper; 325, slot; 326, first plug-in portion; 327, clearance slot;

[0050] 33, fixing member; 331, second buckling part; 332, cantilever; 3321, matching point; 333, slide groove; 334, first limiting part; 335, second limiting part; 336, avoidance groove; 337, second plug-in part; 338, blocking part; 339, snap buckle;

[0051] 4. Box body. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] The embodiments of the present application provide a joint box sealing structure and a joint box, which can solve the technical problem in the related art that the gel material is not easy to rebound, which is not conducive to the removal of the gel module.

[0054] See also Figure 1 and Fig.18 As shown, a joint box sealing structure provided by an embodiment of the present application may include: at least two pressing pieces 1, at least two of the pressing pieces 1 are connected by a driving piece 2, the number of the pressing pieces 1 may be two or more, when the number of the pressing pieces 1 is two, the two pressing pieces 1 are connected by the driving piece 2; a sealing module 3, which is installed between the at least two pressing pieces 1, the sealing module 3 includes a gel block 31 and a fixing plate 32 fixed on opposite sides of the gel block 31, the fixing plate 32 on each side of the gel block 31 is locked to the pressing piece 1 on that side by a fixing piece 33 detachably connected to the fixing plate 32, wherein each side of the gel block 31 can be locked to the pressing piece 1 by a fixing piece 33, and the fixing pieces 33 on different sides are locked to different pressing pieces 1; the driving piece 2 is configured to drive at least two of the pressing pieces 1 to move in a direction of approaching or moving away from each other, so that the pressing piece 1 drives the gel block 31 to be compressed or stretched through the fixing piece 33.

[0055] Among them, this embodiment takes two pressing parts 1 as an example, one pressing part 1 is an upper pressing part 1, and the other pressing part 1 is a lower pressing part 1. The upper pressing part 1 and the lower pressing part 1 are connected by a driving part 2, and the driving part 2 can drive the upper pressing part 1 and the lower pressing part 1 to approach each other or move away from each other. For example, when the driving part 2 is rotated in one direction, the driving part 2 can drive the upper pressing part 1 and the lower pressing part 1 to approach each other to compress the sealing module 3. When the driving part 2 is rotated in the other opposite direction, the driving part 2 can drive the upper pressing part 1 and the lower pressing part 1 to move away from each other, and at the same time drive the sealing module 3 to be stretched. Since the joint box generally has a box body 4, and the sealing structure of the joint box is installed inside the box body 4, when the sealing module 3 is compressed, the outer side of the gel block 31 will contact and seal with the inner side wall of the box body 4. If the gel block 31 cannot rebound by itself after aging, the gel block 31 will always maintain a state of close contact with the box body 4, which will make it difficult to remove the box body 4 from the sealing structure of the joint box. The present application adds a fixing piece 33 so that the fixing plate 32 fixed at the upper end of the gel block 31 can be locked with the upper pressing piece 1 through a separate fixing piece 33, and the fixing plate 32 fixed at the lower end of the gel block 31 can be locked with the lower pressing piece 1 through a separate fixing piece 33. When the upper pressing piece 1 and the lower pressing piece 1 are close to each other, the gel block 31 can be compressed. When the upper pressing piece 1 and the lower pressing piece 1 are away from each other, the gel block 31 can be stretched by the fixing piece 33 so that the gel block 31 is no longer in close contact with the inner wall of the box body 4.

[0056] In this embodiment, the fixing plates 32 on the opposite sides of the gel block 31 can be fixed to different pressing members 1 (for example, the upper pressing member 1 and the lower pressing member 1) respectively through the fixing members 33. When the driving member 2 drives the pressing member 1 to move in the directions away from each other, the upper and lower pressing members 1 will drive the two fixing members 33 locked on the pressing member 1 to move in the directions away from each other. Since the fixing members 33 are installed on the fixing plates 32, the two fixing members 33 will drive the gel blocks 31 on the upper and lower sides of the gel block 31 to stretch in the up and down directions. Even if the gel block 31 is aged, the gel block 31 can be stretched so that the gel block 31 is not in close contact with the inner wall of the box body 4, which is beneficial to the removal of the sealing module 3 and solves the technical problem in the related art that the gel material is not easy to rebound and is not conducive to the removal of the gel module. The present application forms a relative lock between the sealing module 3 and the pressing member 1 by adding a fixing member 33. When the pressing members 1 are driven to approach each other by the driving member 2, the gel block 31 can be compressed. When the pressing members 1 are driven to move away from each other by the driving member 2, the gel block 31 can be stretched by the fixing member 33.

[0057] Preferably, the joint box sealing structure in the present embodiment can be applied to a gel joint box, and the box body 4 of the gel joint box is barrel-shaped, and the cross-section of the pressing piece 1 in the present embodiment is close to a circle, and a plurality of sealing cavities 12 can be formed around the pressing piece 1, and a sealing module 3 is installed in each sealing cavity 12. After the plurality of sealing modules 3 are installed to the pressing piece 1, the plurality of sealing modules 3 are spliced ​​to form a circular ring to cooperate with the barrel-shaped box body 4 for sealing.

[0058] See also Figures 3 to 5As shown, in one embodiment, the fixing member 33 is slidably mounted on the fixing plate 32, and the fixing member 33 is buckled with the pressing member 1; when the fixing member 33 is pulled along the first direction, the fixing member 33 slides relative to the fixing plate 32, and the fixing member 33 is unlocked from the pressing member 1. In this embodiment, the fixing member 33 can slide relative to the fixing plate 32. The fixing plate 32 is generally fixed to the gel block 31 (for example, they can be bonded together), and the two cannot slide relative to each other. The gel block 31 is compressible, and the fixing plate 32 is generally incompressible. A fixing plate 32 is fixed on each side of the gel block 31, and the fixing plate 32 is more conducive to fixing the gel block 31; when the sealing module 3 and the pressing member 1 are assembled, the fixing member 33 is buckled with the pressing member 1, and when the fixing member 33 is pulled along a first direction (the first direction here can be, for example, radially outward along the pressing member 1), the fixing member 33 can slide radially outward, so that the fixing member 33 is no longer buckled with the pressing member 1, the fixing member 33 is unlocked from the pressing member 1, and the sealing module 3 can be removed from the pressing member 1. When the fixing member 33 is buckled to the pressing member 1, the sealing module 3 and the pressing member 1 are in a locked state, and the sealing module 3 cannot be removed from the pressing member 1. In this embodiment, the fixing member 33 is slidably mounted on the fixing plate 32. When the sealing module 3 needs to be disassembled, the upper and lower fixing members 33 can be directly pulled as a whole to unlock the module, which is convenient to operate.

[0059] See also Figure 5 As shown, in some optional embodiments, the pressing member 1 is provided with a first buckling portion 11, and the fixing member 33 is provided with a second buckling portion 331. The pressing member 1 and the fixing member 33 are buckled with each other through the first buckling portion 11 and the second buckling portion 331 to limit the axial movement of the sealing module 3; the fixing plate 32 is provided with a stopper 321 ( Figure 8As shown in the figure, the first buckling part 11 is radially stopped at the outer side of the stopper 321. The first buckling part 11 can be a convex block arranged on the pressing part 1, and the upper pressing part 1 is provided with a first buckling part 11 on the left and right sides of each sealing module 3, and the lower pressing part 1 is also provided with a first buckling part 11 on the left and right sides of each sealing module 3, that is, four first buckling parts 11 can be provided for one sealing module 3, and the second buckling part 331 can be a groove arranged on the fixing part 33, and the groove penetrates the fixing part 33 in the radial direction, so that when the sealing module 3 is inserted into the sealing cavity 12 in the radial direction, the first buckling part 11 can be inserted into the second buckling part 331, the fixing part 33 located above the gel block 31 can be provided with two second buckling parts 331, and the fixing part 33 located below the gel block 31 can also be provided with two second buckling parts 331, and the four second buckling parts 331 can be symmetrically arranged about the sealing module 3. Of course, in other embodiments, two or more second buckling portions 331 may be provided; the first buckling portion 11 may be provided as a groove, and the second buckling portion 331 may be provided as a protrusion.

[0060] In this embodiment, the second buckling portion 331 can be completely arranged on the fixing member 33, or the fixing member 33 and the fixing plate 32 can form the second buckling portion 331. For example, a stopper 338 is arranged on the fixing member 33, and a second buckling portion 331 with a groove structure is formed between the stopper 338 and the fixing plate 32. When the upper pressing member 1 and the lower pressing member 1 move toward each other, the first buckling portion 11 on the upper pressing member 1 and the lower pressing member 1 will squeeze the upper and lower fixing plates 32 of the gel block 31, thereby compressing the gel block 31. When the upper and lower compression pieces 1 move away from each other, the first buckling parts 11 on the upper and lower compression pieces 1 will push the blocking parts 338 on the upper and lower fixing pieces 33 away from each other, thereby indirectly stretching the gel block 31 in the up-down direction through the fixing piece 33 and the fixing plate 32; and when the upper and lower compression pieces 1 do not move, the first buckling part 11 and the second buckling part 331 are buckled to block the sealing module 3 from moving in the up-down direction, thereby preventing the sealing module 3 from escaping from the compression piece 1. At the same time, the first buckling part 11 is radially blocked at the outer side of the block 321. Due to the blocking of the first buckling part 11, the sealing module 3 will not move radially outward and escaping from the compression piece 1. The radial direction mentioned in this application refers to the radial direction of the compression piece 1, and is also the radial direction of the circular ring surrounded by multiple sealing modules 3.

[0061] For further information, see Figures 9 to 11As shown, in one embodiment, the fixing plate 32 is provided with a slide rail 322, and the fixing plate 32 forms a retaining wall 323 on one side of the slide rail 322, the fixing member 33 is slidably installed on the fixing plate 32 through the slide rail 322, and the fixing member 33 is provided with a cantilever 332, the cantilever 332 has a mating point 3321, and the retaining wall 323 is radially blocked at the outer side of the mating point 3321 ( Fig.16 When the fixing member 33 is pulled along the first direction, the matching point 3321 passes over the retaining wall 323 ( Fig.17 As shown), the second buckling portion 331 moves radially to the outside of the first buckling portion 11, so that the fixing member 33 is unlocked from the pressing member 1. The locking cam 332 is preferably provided on the locking cam 332 so that the locking cam 332 can be unlocked and the locking cam 3321 can be unlocked and the like. At the same time, by arranging the cantilever 332 on the fixing member 33 , the cantilever 332 has a certain elasticity and is easier to deform, which is conducive to the mutual matching point 3321 passing over the retaining wall 323 under the action of external force.

[0062] Preferably, the mating point 3321 in this embodiment is set as a convex point. In other embodiments, a convex point may be set on the retaining wall 323, and a concave mating point 3321 may be set on the cantilever 332 to cooperate with the retaining wall 323.

[0063] Based on the above technical solution, see Fig.11 As shown, in one embodiment, the fixing member 33 is provided with a slide groove 333, and a first limiting portion 334 is formed at one end of the slide groove 333, and the fixing plate 32 is provided with a slide rail 322, and the slide rail 322 is inserted into the slide groove 333, and the length of the slide rail 322 is less than the length of the slide groove 333 ( Fig.15As shown); when the fixing member 33 moves along the first direction until the first limiting portion 334 contacts the slide rail 322, the slide rail 322 blocks the fixing member 33 from detaching from the fixing plate 32. In this embodiment, a slide rail 322 is respectively provided on the left and right sides of the fixing plate 32, and a slide groove 333 is correspondingly provided on the left and right sides of the fixing member 33. The slide rail 322 is inserted into the slide groove 333 to realize the sliding of the fixing member 33 on the fixing plate 32. At the same time, since the slide rail 322 is short and the slide groove 333 is long, the slide rail 322 can move a distance in the slide groove 333. When the fixing member 33 moves outward until the first limiting portion 334 contacts the end of the slide rail 322, the fixing member 33 can no longer move outward. In this way, the slide rail 322 cooperates with the first limiting portion 334, so that the fixing member 33 can no longer detach from the outside and fall off the fixing plate 32. In other embodiments, the slide groove 333 can also be provided on the fixing plate 32.

[0064] See also Fig.15 As shown, in some embodiments, the fixing plate 32 may further be provided with a stopper 324, and the stopper 324 and the slide rail 322 are spaced apart along the radial direction of the sealing module 3 ( Fig.12 As shown in the figure, the fixing member 33 is provided with a second limiting portion 335 corresponding to the stopping portion 324, and the stopping portion 324 is radially stopped at the inner side of the second limiting portion 335. In this embodiment, an inclined surface may be provided on the inner side of the stopping portion 324, and a corresponding inclined surface may also be provided on the second limiting portion 335, so that when the fixing member 33 is radially slidably installed on the fixing plate 32 from the inside to the outside, the second limiting portion 335 is more likely to pass over the stopping portion 324 along the inclined surface. When the fixing member 33 is assembled on the fixing plate 32, the stopping portion 324 is always located on the inner side of the second limiting portion 335, and the stopping portion 324 cooperates with the second limiting portion 335 to prevent the fixing member 33 from radially escaping from the fixing plate 32 inwardly.

[0065] For further information, see Fig.13 As shown, in one embodiment, the fixing member 33 is provided with an avoidance groove 336 corresponding to the cantilever 332, and the avoidance groove 336 runs through the fixing member 33. In this embodiment, a avoidance groove 336 is provided on the fixing member 33 corresponding to each cantilever 332, and the matching point 3321 can be located in the corresponding avoidance groove 336. By providing the avoidance groove 336, the matching point 3321 can not only protrude upward or downward into the fixing plate 32 to interfere with the retaining wall 323, but also provide space for the deformation of the cantilever 332. Preferably, the fixing plate 32 can be provided with a clearance groove 327 ( Fig.12 As shown in FIG. 3 , the bottom surface of the clearance groove 327 is lower than the top surface of the retaining wall 323 , and the clearance groove 327 can avoid the mutual matching point 3321 , so that the fixing member 33 can be smoothly slid and installed to the fixing plate 32 .

[0066] See also Figure 3 As shown, in some optional embodiments, the gel block 31 may include an inner gel block 311 and an outer gel block 312, and the inner gel block 311 and the outer gel block 312 form an optical cable through hole 313 ( Figure 6 As shown in FIG. 3 , when sealing the optical cable, the optical cable can be inserted into the optical cable through hole 313; the fixing plates 32 are fixedly disposed on opposite sides of the inner gel block 311 and the outer gel block 312, and the fixing plates 32 on the outer gel block 312 are locked to the pressing member 1 through the fixing member 33. Fig.14 As shown, in this embodiment, a fixing plate 32 is fixed above the inner gel block 311, and a fixing plate 32 is fixed below the inner gel block 311. A fixing plate 32 is also fixed above the outer gel block 312, and a fixing plate 32 is also fixed below the outer gel block 312. The inner gel block 311 and the outer gel block 312 can be separated from each other. The fixing plate 32 on the outer gel block 312 can be locked to the upper and lower pressing parts 1 by the fixing part 33, and the inner gel block 311 can be installed to the upper and lower pressing parts 1 by other means.

[0067] For further information, see Figure 7 As shown, in one embodiment, at least two of the pressing parts 1 enclose a sealed cavity 12, the sealing module 3 is installed in the sealed cavity 12, and the inner side wall of the sealed cavity 12 protrudes into the sealed cavity 12 to form an insert plate 13; the fixing plate 32 on the inner gel block 311 is provided with a slot 325 ( Fig.14 As shown), the slot 325 is inserted into the plug board 13. Figure 2 As shown, in this embodiment, each sealed cavity 12 may have a first inner side wall 121 extending along the circumferential direction of the pressing piece 1, and two second inner side walls 122 extending along the radial direction of the pressing piece 1, the two second inner side walls 122 are respectively located on the left and right sides of the first inner side wall 121, the insert plate 13 may be arranged on the first inner side wall 121 or on the second inner side wall 122, or may be partially located on the first inner side wall 121 and partially located on the second inner side wall 122. In this embodiment, the insert plate 13 is preferably arranged on the first inner side wall 121 and the second inner side wall 122. The cross section of 13 is set to be a triangle, and one side of the plug plate 13 is connected to the first inner wall 121, and the other side is connected to the second inner wall 122. By setting a slot 325 on the fixing plate 32 of the inner gel block 311, the plug plate 13 is inserted into the slot 325, so that when the upper and lower pressing parts 1 are pressed, the inner gel block 311 can be compressed through the cooperation of the plug plate 13 and the slot 325, and when the upper and lower pressing parts 1 are separated, the inner gel block 311 can be stretched through the cooperation of the plug plate 13 and the slot 325.

[0068] Further, see Figure 2As shown, in some embodiments, one of the pressing parts 1 forms a support surface 14 in the sealing cavity 12, the plug plate 13 on the pressing part 1 is connected to the support surface 14, and the support surface 14 is coplanar with the surface of the plug plate 13 on the pressing part 1; the plug plate 13 on the other pressing part 1 is spaced apart from the outer edge of the pressing part 1, so that the inner wall of the sealing cavity 12 forms a vertical surface 15 extending in the axial direction between the plug plate 13 and the outer edge of the pressing part 1. In this embodiment, a support surface 14 is provided on the lower pressing piece 1 to support the sealing module 3 at the bottom of the sealing module 3 so that the sealing module 3 will not fall downward, and the plug plate 13 on the upper pressing piece 1 is disconnected from the outer edge of the pressing piece 1, and the second inner wall 122 is a vertically extending smooth surface in the area between the plug plate 13 and the outer edge of the pressing piece 1, which is convenient for injection molding production of the pressing piece 1. At the same time, no groove structure for guiding the installation of the sealing module 3 is provided on the vertical surface 15. Even if the gel block 31 becomes non-resilient, the sealing module 3 can be conveniently installed in the sealing cavity 12 and continue to be used, which has a longer service life and is convenient for assembly. Because if a groove structure for guiding the installation of the sealing module 3 is provided on the vertical surface 15, when the gel block 31 does not rebound after being used for a long time, it is difficult for the sealing module 3 to align with the groove structure during the installation process of the sealing module 3, making it difficult to install or even impossible to use, thereby reducing the service life.

[0069] See also Figures 18 to 21 As shown, in some optional embodiments, the press-fitting member 1 may include a cylinder 16 and a plurality of pressure plates 17 spaced apart along the circumferential direction of the cylinder 16, the sealing module 3 is installed between two adjacent pressure plates 17, one end of the fixing member 33 is hinged to one of the pressure plates 17, and the other end is buckled to the adjacent pressure plate 17 on the same press-fitting member 1. In this embodiment, the fixing member 33 is hingedly mounted on the pressure plate 17, and when the sealing module 3 is mounted to the sealing cavity 12, the sealing module 3 is fixed to the press-fitting member 1 by the upper and lower fixing members 33, the upper fixing member 33 cooperates with the fixing plate 32 above the gel block 31, and the lower fixing member 33 cooperates with the fixing plate 32 below the gel block 31.

[0070] For further information, see Fig. 22As shown, in one embodiment, the fixing plate 32 is provided with a first plug-in portion 326, and the fixing member 33 is provided with a second plug-in portion 337, and the second plug-in portion 337 is plugged into the first plug-in portion 326. In this embodiment, it is preferred that the first plug-in portion 326 is set as a plug-in plate, and the second plug-in portion 337 is set as a plug-in slot, and the first plug-in portion 326 and the second plug-in portion 337 are plugged into each other. In other embodiments, the configuration may be reversed, that is, the second plug-in portion 337 is set as a plug-in plate. The second plug-in portion 337 can not only limit the sealing module 3 in the up and down directions, but also limit the sealing module 3 in the radial direction, and when the upper pressing piece 1 and the lower pressing piece 1 move in a direction toward each other, the upper and lower second plug-in portions 337 can drive the upper and lower fixed plates 32 to be compressed, thereby compressing the gel block 31, and when the upper pressing piece 1 and the lower pressing piece 1 move in a direction away from each other, the upper and lower second plug-in portions 337 can drive the upper and lower fixed plates 32 to move in a direction away from each other, thereby stretching the gel block 31.

[0071] Preferably, see Figure 19 to Figure 20 As shown, each fixing member 33 is provided with a spring buckle 339 , and the pressing plate 17 may be provided with a slot 171 , and the spring buckle 339 is buckled in the slot 171 , so as to lock the sealing module 3 to the pressing member 1 .

[0072] See also Fig.23 As shown, the embodiment of the present application further provides a joint box, which includes a box body 4 and the above-mentioned joint box sealing structure installed in the box body 4. The joint box sealing structure in this embodiment can adopt the joint box sealing structure provided in any of the above embodiments and achieve the corresponding technical effect, which will not be repeated here.

[0073] The assembly method of the joint box sealing structure provided in the embodiment of the present application may include the following steps:

[0074] Step 1: The driving member 2 drives at least two pressing members 1 to move away from each other, so that at least two pressing members 1 are separated, and the sealing module 3 is stretched. After step 1, after the sealing module 3 is stretched, the sealing module 3 is no longer tightly attached to the inner wall of the box body 4, and the box body 4 outside the pressing member 1 can be removed.

[0075] Step 2: Pull the fixing piece 33 to unlock the sealing module 3 from the pressing piece 1, and remove the sealing module 3 from the pressing piece 1. The gel block 31 in the sealing module 3 may include an inner gel block 311 and an outer gel block 312, and the inner gel block 311 and the outer gel block 312 form an optical cable through hole 313; the inner gel block 311 and the outer gel block 312 are fixed with fixing plates 32 on opposite sides of the inner gel block 311 and the outer gel block 312, and the fixing plate 32 on the outer gel block 312 is locked to the pressing piece 1 through the fixing piece 33. When removing the sealing module 3, only the outer gel block 312 together with the fixing plate 32 and the fixing piece 33 thereon (referred to as the outer sealing module) can be removed, and the inner gel block 311 is still left on the pressing piece 1.

[0076] Step 3: Assemble the optical cable into the sealing module 3.

[0077] Step 4: Assemble the sealing module 3 to the pressing piece 1 , and lock the sealing module 3 to the pressing piece 1 by the fixing piece 33 .

[0078] When the locking cam 33 is in the unlocked position, the locking cam 33 is unlocked and the locking cam 33 is in the unlocked position.

[0079] If the fixing piece 33 is hinged to the pressing piece 1, when removing the outer sealing module, the spring buckle 339 can be directly pinched, and then the spring buckle 339 can be taken out from the slot 171 to complete the unlocking; when installing the outer sealing module to the pressing piece 1, after the outer sealing module is inserted into the sealing cavity 12, the fixing piece 33 is rotated, and the spring buckles 339 of the upper and lower fixing pieces 33 are buckled into the slot 171 to lock it.

[0080] The sealing module 3 in the present application utilizes the soft property of the gel material to facilitate compression and can be pushed flat into the sealing cavity 12. The sealing module 3 is compressed and installed to ensure that the sealing module 3 is not easy to loosen and fall out.

[0081] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0082] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0083] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A joint box sealing structure, characterized in that: It includes: At least two pressing parts (1), wherein at least two of the pressing parts (1) are connected via a driving part (2); A sealing module (3) installed between at least two of the pressing parts (1), the sealing module (3) comprising a gel block (31) and fixing plates (32) fixedly arranged on two opposite sides of the gel block (31), the fixing plates (32) on each side of the gel block (31) being locked to the pressing part (1) on that side via fixing parts (33) detachably connected to the fixing plates (32); The driving member (2) is configured to drive at least two of the pressing members (1) to move towards or away from each other, so that the pressing members (1) drive the gel block (31) to be compressed or stretched through the fixing member (33).

2. The sealing structure of the joint box according to claim 1, characterized in that: The fixing member (33) is slidably mounted on the fixing plate (32), and the fixing member (33) is buckled with the pressing member (1); When the fixing member (33) is pulled along a first direction, the fixing member (33) slides relative to the fixing plate (32), and the fixing member (33) is unlocked from the pressing member (1).

3. The sealing structure of the joint box according to claim 2, characterized in that: The pressing piece (1) is provided with a first buckling portion (11), and the fixing piece (33) is provided with a second buckling portion (331); the pressing piece (1) and the fixing piece (33) are buckled with each other via the first buckling portion (11) and the second buckling portion (331) to limit the axial movement of the sealing module (3); The fixing plate (32) is provided with a stopper (321), and the first buckling portion (11) is radially stopped at the outer side of the stopper (321).

4. The sealing structure of the joint box according to claim 3, characterized in that: The fixing plate (32) is provided with a slide rail (322), and the fixing plate (32) forms a retaining wall (323) on one side of the slide rail (322), the fixing member (33) is slidably mounted on the fixing plate (32) through the slide rail (322), and the fixing member (33) is provided with a cantilever (332), the cantilever (332) has a mating point (3321), and the retaining wall (323) is radially stopped at the outer side of the mating point (3321); When the fixing member (33) is pulled along the first direction, the matching point (3321) passes over the retaining wall (323), and the second buckling portion (331) moves radially to the outside of the first buckling portion (11), so that the fixing member (33) and the pressing member (1) are unlocked.

5. The joint box sealing structure according to any one of claims 2 to 4, characterized in that: The fixing member (33) is provided with a slide groove (333), and a first limiting portion (334) is formed at one end of the slide groove (333); the fixing plate (32) is provided with a slide rail (322), the slide rail (322) is inserted into the slide groove (333), and the length of the slide rail (322) is less than the length of the slide groove (333); When the fixing member (33) moves along the first direction until the first limiting portion (334) contacts the slide rail (322), the slide rail (322) blocks the fixing member (33) from separating from the fixing plate (32).

6. The sealing structure of the joint box according to claim 5, characterized in that: The fixing plate (32) is also provided with a stop portion (324), and the stop portion (324) and the slide rail (322) are arranged at intervals along the radial direction of the sealing module (3); the fixing member (33) is provided with a second limiting portion (335) corresponding to the stop portion (324), and the stop portion (324) is radially stopped at the inner side of the second limiting portion (335).

7. The sealing structure of the joint box according to claim 4, characterized in that: The fixing member (33) is provided with an avoidance groove (336) at a position corresponding to the cantilever (332), and the avoidance groove (336) passes through the fixing member (33).

8. The sealing structure of the joint box according to claim 1, characterized in that: The gel block (31) comprises an inner gel block (311) and an outer gel block (312), and the inner gel block (311) and the outer gel block (312) form an optical cable through hole (313); The fixing plates (32) are fixedly provided on opposite sides of the inner gel block (311) and the outer gel block (312), and the fixing plates (32) on the outer gel block (312) are locked to the pressing member (1) via the fixing member (33).

9. The sealing structure of the joint box according to claim 8, characterized in that: At least two of the pressing parts (1) enclose a sealed cavity (12), the sealing module (3) is installed in the sealed cavity (12), and the inner side wall of the sealed cavity (12) protrudes into the sealed cavity (12) to form an insert plate (13); The fixing plate (32) on the inner gel block (311) is provided with a slot (325), and the slot (325) is inserted into the inserting plate (13).

10. The sealing structure of the joint box according to claim 9, characterized in that: One of the pressing parts (1) forms a supporting surface (14) in the sealing cavity (12), the inserting plate (13) on the pressing part (1) is connected to the supporting surface (14), and the supporting surface (14) is coplanar with the surface of the inserting plate (13) on the pressing part (1); The insert plate (13) on the other press-fitting piece (1) is spaced apart from the outer edge of the press-fitting piece (1), so that the inner wall of the sealing cavity (12) forms a vertical surface (15) extending in the axial direction between the insert plate (13) and the outer edge of the press-fitting piece (1).

11. The sealing structure of the joint box according to claim 1, characterized in that: The pressing piece (1) comprises a cylinder (16) and a plurality of pressure plates (17) spaced apart along the circumferential direction of the cylinder (16); the sealing module (3) is installed between two adjacent pressure plates (17); one end of the fixing piece (33) is hinged to one of the pressure plates (17), and the other end is buckled to the adjacent pressure plate (17) on the same pressing piece (1).

12. The sealing structure of the joint box according to claim 11, characterized in that: The fixing plate (32) is provided with a first plug-in portion (326), and the fixing member (33) is provided with a second plug-in portion (337), and the second plug-in portion (337) and the first plug-in portion (326) are plugged into each other.

13. A joint box, characterized in that: It comprises a box body (4) and a joint box sealing structure according to any one of claims 1 to 12 installed in the box body (4).

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