An inclined sliding block extrusion device for sealing an optical cable joint box and the optical cable joint box

Abstract

The application relates to an inclined sliding block extrusion device for sealing an optical cable joint box and the optical cable joint box, which comprises a base, a stand, an inclined sliding block, an extrusion mechanism and an operating mechanism; the stand is arranged on the base and is provided with an inclined track groove; the inclined sliding block is arranged in the track groove and is in linear contact or point contact with the inner wall of the track groove; the extrusion mechanism is arranged on the stand, and a placement space for placing an elastic sealing body is formed between the extrusion mechanism and the base; the operating mechanism is arranged in the extrusion mechanism and the track groove and is in threaded connection with the inclined sliding block; the operating mechanism is used for rotating to drive the inclined sliding block to move in the track groove and drive the extrusion mechanism to move on the stand towards or away from the base. Since the inclined sliding block is in linear contact or point contact with the track groove, the resistance of the inclined sliding block to the inner wall of the track groove is greatly reduced compared with the case that the inclined sliding block is in surface contact with the track groove, and when the inclined sliding block is operated, a smaller force can be applied to realize the extrusion of the elastic sealing body and the sealing of the optical cable joint box.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication cable joint box, in particular to a slanted sliding block extrusion device for sealing a cable joint box and the cable joint box. BACKGROUND

[0002] With the large-scale construction of optical cable communication network and the deployment of optical fiber network, the laying and connection of optical cable is a very important link. When laying optical cable, the cable joint box is an essential connecting piece. However, due to the limitations of environment, materials, structure, process and human factors, the cable joint box is always a weak point of safety in the whole optical cable communication line.

[0003] The most common failure of the cable joint box is poor sealing, which causes the performance of optical fiber to gradually deteriorate and communication failure after being drenched or flooded.

[0004] The mechanical cable joint box is commonly used in the industry. The sealing principle of this mechanical cable joint box is basically the same, which is divided into two parts of elastic component and extrusion mechanism. The elastic component is extruded by the extrusion mechanism, so that it is deformed after being pressed, thereby filling the gap between the cable and the box body, and then realizing the sealing performance of the cable and the box body.

[0005] In some related technologies, the slanted linear movement of the sliding block is converted into the up-down movement of the extrusion mechanism by driving the sliding block to move in the sliding groove, so as to make the extrusion mechanism extrude the elastic component. Although this can realize the sealing of the cable and the box body, the resistance received by the sliding block during movement is large, so that the operator needs to exert a large force during operation, which is not friendly to the operator. SUMMARY

[0006] The present application provides a slanted sliding block extrusion device for sealing a cable joint box and the cable joint box, to solve the problem that in the related art, the resistance received by the sliding block during movement is large, so that the operator needs to exert a large force during operation, which is not friendly to the operator.

[0007] In a first aspect, a slanted sliding block extrusion device for sealing a cable joint box is provided, which comprises:

[0008] a base;

[0009] a stand column, which is arranged on the base, and an inclined track groove is arranged on the stand column;

[0010] a slanted sliding block, which is located in the track groove and is in linear or point contact with the inner wall of the track groove;

[0011] an extrusion mechanism, which is sleeved on the stand column, and a placement space for placing an elastic sealing body is formed between the extrusion mechanism and the base;

[0012] An operating mechanism is arranged in the extrusion mechanism and the track groove and is threadedly connected with the inclined sliding block; the operating mechanism is used to rotate to drive the inclined sliding block to move in the track groove and drive the extrusion mechanism to move towards or away from the base along the stand.

[0013] In some embodiments, when the contact is linear, a protruding strip is arranged on the outer wall of the inclined sliding block and / or the inner wall of the track groove, and the protruding strip extends along the moving direction of the inclined sliding block.

[0014] When the contact is point-like, a protruding point is arranged on the outer wall of the inclined sliding block and / or the inner wall of the track groove.

[0015] In some embodiments, the inclined sliding block is internally provided with a first channel for the operating mechanism to pass through, and a nut is arranged in the first channel, and the operating mechanism is screwed on the nut.

[0016] In some embodiments, the operating mechanism comprises:

[0017] A rotating shaft is arranged in the extrusion mechanism and the track groove and is threadedly connected with the inclined sliding block.

[0018] An operating rod is inserted at one end with the rotating shaft.

[0019] In some embodiments, the distance from the position where the rotating shaft is inserted with the operating rod to the stand is a preset distance.

[0020] In some embodiments, a limiting hole is arranged at one end of the operating rod and is adapted to one end of the rotating shaft, and the operating rod is inserted with the rotating shaft through the limiting hole.

[0021] Alternatively, a limiting hole is arranged at one end of the rotating shaft and is adapted to one end of the operating rod, and the rotating shaft is inserted with the operating rod through the limiting hole.

[0022] In some embodiments, the limiting hole is in the shape of an ellipse, a triangle, a quadrilateral, a pentagon or a hexagon in the cross section perpendicular to the axial direction of the operating rod.

[0023] In some embodiments, the operating mechanism further comprises a fastener which is inserted between the rotating shaft and the operating rod to fix the rotating shaft and the operating rod.

[0024] In some embodiments, the operating rod comprises a shaft sleeve and a handle, the shaft sleeve is inserted with the rotating shaft, and the handle is rotationally connected with the shaft sleeve.

[0025] When the handle is in the working state, the handle is coaxial with the rotating shaft.

[0026] When the handle is in the retracted state, the handle is rotated to be parallel to the stand.

[0027] In a second aspect, there is provided an optical cable splice closure comprising the inclined sliding block extrusion device for sealing an optical cable splice closure as defined in any one of the preceding aspects.

[0028] The technical scheme provided by the application has the beneficial effects of:

[0029] Due to the line contact or point contact between the outer wall of the inclined sliding block and the inner wall of the track groove, the resistance of the inclined sliding block to the inner wall of the track groove is greatly reduced when moving, and the operator can exert a smaller force when operating, so as to realize the extrusion of the elastic sealing body and the sealing purpose of the optical cable splice closure.

[0030] Therefore, the application is more friendly to operators. When sealing multiple optical cable splice closures in one construction, the operator can exert a smaller force due to the smaller resistance of the inclined sliding block, so as to avoid the need for rest to recover physical strength after completing the sealing of several optical cable splice closures. Therefore, the application can also speed up the construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 A schematic diagram of the inclined sliding block extrusion device for sealing an optical cable splice closure provided by the embodiments of the application;

[0033] Figure 2 A perspective view of the inclined sliding block extrusion device for sealing an optical cable splice closure provided by the embodiments of the application;

[0034] Figure 3 Another perspective view of the inclined sliding block extrusion device for sealing an optical cable splice closure provided by the embodiments of the application.

[0035] In the figure: 1, base; 10, screw; 2, stand; 20, track groove; 3, inclined sliding block; 30, convex strip; 31, nut; 4, extrusion mechanism; 40, installation space; 5, operating mechanism; 50, rotating shaft; 500, gasket; 501, bolt; 51, operating rod; 510, limiting hole; 511, shaft sleeve; 512, handle; 513, holding rod; 514, groove; 52, fastener; 6, elastic sealing body. DETAILED DESCRIPTION

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , the oblique sliding block extrusion device for sealing the optical cable joint box provided by the embodiments of the present application comprises a base 1, a vertical column 2, an oblique sliding block 3, an extrusion mechanism 4 and an operating mechanism 5. The vertical column 2 is arranged on the base 1, for example, is fixed by means of screws 10 and the like, and the vertical column 2 is provided with an obliquely arranged track groove 20. The oblique sliding block 3 is located in the track groove 20, the outer wall of the oblique sliding block 3 is in linear contact or point contact with the inner wall of the track groove 20, and the oblique sliding block 3 can move in the track groove 20. The extrusion mechanism 4 is sleeved on the vertical column 2, and the extrusion mechanism 4 and the base 1 form a placement space 40 for placing an elastic sealing body 6 therebetween, and the elastic sealing body 6 can be made of a commonly used sealing material, such as gel. The operating mechanism 5 is threaded through the extrusion mechanism 4 and the track groove 20 and is in threaded connection with the oblique sliding block 3. The operating mechanism 5 is used for rotating to drive the oblique sliding block 3 to move in the track groove 20 and to drive the extrusion mechanism 4 to move on the vertical column 2 towards or away from the base 1.

[0038] The extrusion sealing principle of the embodiments is as follows:

[0039] Referring to Figure 2 , the initial state of not performing sealing extrusion is shown, and the vertical column 2 is taken as a reference object to describe the movement state in detail. In the initial state of not performing sealing extrusion, the oblique sliding block 3 is located at the left side of the track groove 20 inside the vertical column 2. The operating mechanism 5 is located at the upper part of the vertical column 2 in the direction designed according to the track groove 20 due to the threaded connection with the oblique sliding block 3. The operating mechanism 5 passes through the extrusion mechanism 4, so that the positions of the operating mechanism 5 and the extrusion mechanism 4 relative to the vertical column 2 change together, and the extrusion mechanism 4 is located at the upper part of the vertical column 2. Since the extrusion mechanism 4 is sleeved on the vertical column 2, the extrusion mechanism 4 can move up and down along the vertical column 2 by rotating the operating mechanism 5, and the operating mechanism 5 can only move up and down relative to the vertical column 2 in addition to rotation.

[0040] When the operating mechanism 5 rotates, the screw thread drives the inclined slider 3 to move relative to the operating mechanism 5 along the screw thread axis. Since the left and right movement of the operating mechanism 5 is fixed, the screw thread can only drive the inclined slider 3 to move to the right relative to the column 2 during rotation. Because the track groove 20 is inclined, the inclined slider 3 moves to the right and also moves downward relative to the column 2 under the action of the track groove 20 inside the column 2. Since the inclined slider 3 and the operating mechanism 5 are fitted with the shaft hole transverse to the column 2, their positions relative to the column 2 in the vertical direction are always synchronized. Therefore, when the inclined slider 3 moves downward under the screw thread, it will synchronously drive the operating mechanism 5 to move downward. The positions of the operating mechanism 5 and the pressing mechanism 4 relative to the column 2 also change together, so there is a mutual positional relationship, that is, the positions of the inclined slider 3, the operating mechanism 5, and the pressing mechanism 4 relative to the column 2 in the vertical direction are always synchronized. Therefore, the downward movement of the operating mechanism 5 will also drive the pressing mechanism 4 to move downward synchronously, thereby pressing the elastic sealing body 6. The elastic sealing body 6 will expand laterally in the left and right directions to achieve a sealing effect.

[0041] The most important movement involves driving the inclined slider 3 to move within the track groove 20. Since the outer wall of the inclined slider 3 is in line contact or point contact with the inner wall of the track groove 20, compared to the surface contact between the outer wall of the inclined slider 3 and the inner wall of the track groove 20, the resistance of the inclined slider 3 to the inner wall of the track groove 20 is greatly reduced during movement. When operating, the operator can apply a small amount of force to squeeze the elastic sealing body 6, thereby achieving the sealing purpose of the optical cable junction box.

[0042] Therefore, this application is more operator-friendly. When multiple fiber optic splice boxes need to be sealed in one construction operation, the resistance experienced by the inclined slider 3 of this application is small, and the force required by the operator is small. This avoids the need for rest to recover physical strength after sealing several fiber optic splice boxes due to excessive force. Therefore, this application can also speed up the construction progress.

[0043] There are various structural design methods to achieve line contact between the outer wall of the inclined slider 3 and the inner wall of the track groove 20.

[0044] For example, see Figure 3 As shown, the outer wall of the inclined slider 3 is provided with a protrusion 30, which extends along the moving direction of the inclined slider 3; protrusions 30 can be provided on the outer wall of the inclined slider 3 opposite to the inner wall of the track groove 20. In order to ensure the stable movement of the inclined slider 3 in the track groove 20, multiple protrusions 30 can be provided on the outer side of the inclined slider 3.

[0045] For example, as an example, the inner wall of the track groove 20 is provided with a convex strip 30 extending along the moving direction of the inclined sliding block 3; the inner wall opposite to the outer wall of the inclined sliding block 3 can be provided with the convex strip 30, and in order to ensure the stable movement of the inclined sliding block 3 in the track groove 20, a plurality of convex strips 30 can be arranged on the inner surface of the track groove 20.

[0046] In order to realize the point contact between the outer wall of the inclined sliding block 3 and the inner wall of the track groove 20, there can be various structural design modes.

[0047] For example, as an example, the outer wall of the inclined sliding block 3 is provided with convex points, and the number of convex points on the outer wall of the inclined sliding block 3 can be set as needed to ensure the stable movement of the inclined sliding block 3 in the track groove 20.

[0048] For example, as an example, the inner wall of the track groove 20 is provided with convex points, and the number of convex points on the inner wall of the track groove 20 can be set as needed to ensure the stable movement of the inclined sliding block 3 in the track groove 20.

[0049] Since the line contact or point contact is adopted, in order to prevent the inclined sliding block 3 from shaking in the track groove 20 due to wear after multiple uses and affecting the operation, the convex points and the convex strips 30 adopt commonly used wear-resistant materials, if the convex points and the convex strips 30 are arranged on the outer wall of the inclined sliding block 3, the inner wall of the track groove 20 also adopts wear-resistant materials, if the convex points and the convex strips 30 are arranged on the inner wall of the track groove 20, at least the outer wall of the inclined sliding block 3 also adopts wear-resistant materials.

[0050] In order to improve the service life, in some preferred embodiments, the inclined sliding block 3 is provided with a first channel for the operation mechanism 5 to pass through, the first channel is provided with a nut 31, and the operation mechanism 5 is screwed on the nut 31. Generally, in order to reduce the manufacturing cost and reduce the weight of the product, the inclined sliding block 3 is usually made of plastic or other materials, and the internal thread is directly designed in the inclined sliding block 3 made of such materials, which is easy to damage the internal thread of the inclined sliding block 3 when the operation mechanism 5 rotates with the internal thread, thereby causing the phenomenon of slipping. The nut 31 is usually made of metal material, and the operation mechanism 5 is screwed with the nut 31, which is not easy to be damaged in use, so as to improve the service life. The nut 31 can use a circular nut, a hexagonal nut, etc. Since the operation mechanism 5 needs to be rotated, in order to prevent the nut 31 from rotating together with the operation mechanism 5 due to not being fastened in place, the nut 31 is preferably a hexagonal nut.

[0051] Referring to Figure 1 and Figure 2As shown, the operating mechanism 5 comprises a rotating shaft 50 and an operating rod 51, the rotating shaft 50 is arranged in the extruding mechanism 4 and the track groove 20 and is threadedly connected with the inclined sliding block 3, and one end of the operating rod 51 is inserted into the rotating shaft 50. By means of the insertion, when the extrusion sealing is needed, the operating rod 51 is inserted into the rotating shaft 50, and the extrusion sealing can be realized, and after the extrusion sealing is completed, the operating rod 51 can be taken down, so as to avoid blocking the assembly of other parts of the optical cable joint box.

[0052] Referring to Figure 2 As shown, the part of the rotating shaft 50 located in the track groove 20 is in a solid structure, and the distance L from the position where the rotating shaft 50 is inserted into the operating rod 51 to the stand 2 is a preset distance, which can be determined according to actual needs, and the preset distance is greater than 0. By designing the above-mentioned preset distance and cooperating with the part of the rotating shaft 50 located in the track groove 20 being in a solid structure, the position where the rotating shaft 50 is inserted into the operating rod 51 is transferred from the core area inside the optical cable joint box to the periphery as much as possible, the space inside can be saved, and at the same time, the problem that the hollow shaft is deformed due to factors such as manufacturing, environmental temperature change, long-term stress and the like, resulting in failure of the extrusion device, is avoided, so as to improve the stability of the optical cable joint box.

[0053] In order to realize the insertion of the rotating shaft 50 and the operating rod 51, there can be various structure design modes.

[0054] For example, as an example, referring to Figure 2 As shown, one end of the operating rod 51 is provided with a limiting hole 510 matched with one end of the rotating shaft 50, and the operating rod 51 is inserted into the rotating shaft 50 through the limiting hole 510.

[0055] For example, as an example, one end of the rotating shaft 50 is provided with a limiting hole 510 matched with one end of the operating rod 51, and the rotating shaft 50 is inserted into the operating rod 51 through the limiting hole 510.

[0056] In order to limit the position and make the operating rod 51 rotate after being inserted, the limiting hole 510 cannot be a circular hole, and therefore the cross section of the limiting hole 510 perpendicular to the axial direction of the rotating shaft 50 can be in an elliptical shape, a triangular shape, a quadrilateral shape, a pentagonal shape or a hexagonal shape, or other irregular shapes.

[0057] Referring to Figure 2 As shown, the operating mechanism 5 further comprises a fastener 52 inserted between the rotating shaft 50 and the operating rod 51 to fix the rotating shaft 50 and the operating rod 51. Obviously, the fastener 52 can be a screw, a pin or the like.

[0058] For example, if the limiting hole 510 is formed on the rotating shaft 50, the fastener 52 passes through the rotating shaft 50, enters the limiting hole 510, and abuts or penetrates the operating rod 51.

[0059] For example, if the limiting hole 510 is formed on the operating rod 51, the fastener 52 passes through the operating rod 51, enters the limiting hole 510, and abuts or penetrates the rotating shaft 50.

[0060] In order to prevent the operating mechanism 5 from being lost, as shown in Figure 2 The operating rod 51 includes a shaft sleeve 511 and a handle 512, the shaft sleeve 511 is inserted with the rotating shaft 50, and the handle 512 is rotationally connected to the shaft sleeve 511; when the handle 512 is in the working state, the handle 512 is coaxial with the rotating shaft 50; when the handle 512 is in the retracted state, the handle 512 is rotated to be parallel to the stand column 2. The handle 512 is rotationally connected, when working, it is rotated downward to be coaxial with the rotating shaft 50, and then the extrusion sealing operation is performed, and after the extrusion sealing operation is completed, it is rotated upward to be parallel to the stand column 2, so as to be stored, which is convenient for operation and subsequent maintenance.

[0061] As shown in Figure 2 The end of the handle 512 away from the shaft sleeve 511 is provided with a holding rod 513, and the holding rod 513 is rotationally connected to the handle 512.

[0062] When the rotation operation reaches the required sealing compression amount, the holding rod 513 can be rotated inward around the handle 512; the holding rod 513 is provided with a groove portion 514 matched with the handle 512, and after being rotated inward, the groove portion 514 can be buckled on the handle 512.

[0063] As shown in Figure 2 The side of the rotating shaft 50 inserted with the operating rod 51 is provided with an insert, and the insert is blocked on one side wall of the extrusion mechanism 4; the other end of the rotating shaft 50 is blocked on the other side wall of the extrusion mechanism 4 through the insert. Specifically, the insert includes a gasket 500 and a plug 501, the gasket 500 is sleeved on the rotating shaft 50, and the plug 501 is inserted on the rotating shaft 50 and located on the side of the gasket 500 away from the extrusion mechanism 4. The rotating shaft 50 is fixed by the two inserts, so that the rotating shaft 50 cannot move in the axial direction.

[0064] The application also provides an optical cable joint box, which comprises the inclined sliding block extrusion device for sealing the optical cable joint box according to any one of the above embodiments.

[0065] In the description of the present application, it should be noted that the terms "upper", "lower", and the like are used for indicating the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0066] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0067] The above is only a specific embodiment of the present application, which enables those skilled in the art to 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 these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A slanted slider compression device for sealing optical cable splice boxes, characterized in that, It includes: Base (1); The column (2) is assembled on the base (1) and has an inclined track groove (20) on it; The inclined slider (3) is located in the track groove (20) and is in line contact or point contact with the inner wall of the track groove (20); The extrusion mechanism (4) is sleeved on the column (2), and the extrusion mechanism (4) and the base (1) form a placement space (40) for placing the elastic sealing body (6); An operating mechanism (5) is provided through the extrusion mechanism (4) and the track groove (20) and is threadedly connected to the inclined slider (3); the operating mechanism (5) is used to rotate to drive the inclined slider (3) to move in the track groove (20) and to move the extrusion mechanism (4) on the column (2) toward or away from the base (1).

2. The inclined slider compression device for sealing optical cable junction boxes as described in claim 1, characterized in that: When it is a line contact, the outer wall of the inclined slider (3) and / or the inner wall of the track groove (20) are provided with a protrusion (30), and the protrusion (30) extends along the moving direction of the inclined slider (3); When it is a point contact, the outer wall of the inclined slider (3) and / or the inner wall of the track groove (20) are provided with protrusions.

3. The inclined slide block compression device for sealing optical cable junction boxes as described in claim 1, characterized in that: The inclined slider (3) has a first channel for the operating mechanism (5) to pass through, and a nut (31) is provided in the first channel. The operating mechanism (5) is screwed onto the nut (31).

4. The inclined slider compression device for sealing optical cable junction boxes as described in claim 1, characterized in that, The operating mechanism (5) includes: A rotating shaft (50) passes through the extrusion mechanism (4) and the track groove (20) and is threadedly connected to the inclined slider (3); An operating lever (51) is inserted into the rotating shaft (50) at one end.

5. The inclined slider compression device for sealing optical cable junction boxes as described in claim 4, characterized in that: The portion of the rotating shaft (50) located at least within the track groove (20) is a solid structure, and the distance from the position where the rotating shaft (50) is inserted into the operating lever (51) to the column (2) is a preset distance.

6. The inclined slider compression device for sealing optical cable junction boxes as described in claim 4, characterized in that: The operating lever (51) has a limiting hole (510) at one end that is adapted to one end of the rotating shaft (50), and the operating lever (51) is inserted into the rotating shaft (50) through the limiting hole (510). Alternatively, one end of the rotating shaft (50) is provided with a limiting hole (510) that is adapted to one end of the operating rod (51), and the rotating shaft (50) is inserted into the operating rod (51) through the limiting hole (510).

7. The inclined slide block compression device for sealing optical cable junction boxes as described in claim 6, characterized in that: The limiting hole (510) has an elliptical, triangular, quadrilateral, pentagonal or hexagonal cross section perpendicular to the axis of the operating rod (51).

8. The inclined slider compression device for sealing optical cable junction boxes as described in claim 4, characterized in that: The operating mechanism (5) further includes a fastener (52) which is inserted between the rotating shaft (50) and the operating lever (51) to fix the rotating shaft (50) and the operating lever (51).

9. The inclined slide block compression device for sealing optical cable junction boxes as described in claim 4, characterized in that: The operating lever (51) includes a bushing (511) and a handle (512). The bushing (511) is inserted into the rotating shaft (50), and the handle (512) is rotatably connected to the bushing (511). When the handle (512) is in the working state, the handle (512) is coaxial with the rotating shaft (50); When the handle (512) is in the retracted state, the handle (512) rotates to be parallel to the column (2).

10. An optical cable junction box, characterized in that, It includes the inclined slider compression device for sealing optical cable junction boxes as described in any one of claims 1 to 9.

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