Pre-burying device of overhead optical cable and construction method of pre-burying device

Abstract

The invention belongs to the technical field of aerial optical cable embedding, and discloses an aerial optical cable embedding device which comprises a supporting mechanism, the supporting mechanism comprises a fixed base, two sliding grooves are formed in the top of the fixed base, and a plurality of first air grooves are formed in the fixed base. The interiors of the three first air grooves are connected with first pistons in a sliding mode. The invention discloses a pre-embedding method of an overhead optical cable. The pre-embedding method comprises the following steps: S1, firstly, fixing a fixed base in a pre-embedding groove excavated in the ground; through cooperation of structures such as supporting plates and a pressing plate, overhead fixation of a cable is facilitated, when the cable falls onto the supporting plates, the supporting plates are extruded, first pistons move in the direction close to first air grooves, first springs and air in the first air grooves are extruded, and the size of a positioning groove formed by the three supporting plates is the same as that of the cable; at the moment, the three supporting plates abut against the lower half part of the cable through the elastic force of the first springs.

Description

Technical Field

[0001] The invention belongs to the technical field of pre-embedding of overhead optical cables, in particular to a pre-embedding device for an overhead optical cable and a construction method thereof. Background Art

[0002] Overhead optical cables are optical cables hung on poles for use. However, for optical cables passing through bridges and other areas, in order to avoid obstructions above, the overhead optical cables need to be buried underground. Therefore, a cable trench needs to be opened on the ground, and then the optical cables are placed in the trench and backfilled. The pre-buried device can not only simplify the construction process, reduce on-site construction time and cost, but also improve the safety of optical cables, extend their service life, and reduce the difficulty of later maintenance and upgrades. In addition, the use of pre-buried pipes can also reduce damage to the environment and avoid interference with vegetation, soil and ecosystems that may be caused when cables are directly laid. In actual applications, the design and construction of pre-buried devices need to consider multiple factors, including geographical environment, soil conditions, climate factors and specific needs of communication networks. For example, in areas with complex terrain or crossing rivers and roads, specially designed pre-buried devices may be required to ensure the safe laying of optical cables. In urban environments, pre-buried devices can also be coordinated with urban planning to reduce the impact on urban aesthetics while facilitating future network expansion and upgrades.

[0003] Most of the existing pre-buried devices for overhead optical cables use a rigid structure to pre-bury the cables, and can only fix cables of a single specification overhead, with a small scope of application. At the same time, the toughness of the structure is poor and the rigidity is strong, so that when the device is subjected to impact force, it is easy to cause damage to the device or even the cable. Therefore, a pre-buried device for overhead optical cables is proposed, which has the effect of improving the scope of application and improving the toughness of the structure. Summary of the invention

[0004] In order to solve the problem that the above-mentioned background technology proposes to use a rigid structure to pre-embed the cables, which can only fix cables of a single specification overhead and has a small scope of application, and at the same time makes the structure less tough and more rigid, so that the device and even the cable are easily damaged when subjected to impact force, the present invention provides a pre-embedded device for an overhead optical cable and a construction method thereof.

[0005] To achieve the above object, the present invention provides the following technical solution: a pre-buried device for an overhead optical cable, comprising a support mechanism, a mounting mechanism is arranged on the support mechanism, a top cover mechanism is arranged on the mounting mechanism, and a driving mechanism is arranged on the top cover mechanism;

[0006] The supporting mechanism includes a fixed base, two sliding grooves are provided on the top of the fixed base, a plurality of first air grooves are provided inside the fixed base, first pistons are slidably connected inside the three first air grooves, an end of the first piston away from the first air groove is fixedly connected to a support plate, an end of the first piston close to the first air groove is fixedly connected to a first spring, an air vent is provided on the inner wall of the first air groove, an air bag is arranged inside the air vent, two ends of the air bag are elastically connected to two clamping blocks through a second spring, and a slope is provided on the top of the clamping block.

[0007] Preferably, the two clamping blocks are both located above the airbag, the clamping blocks extend through the fixed base to the interior of the slide groove, the first piston is elastically connected to the inner wall of the first air groove through a first spring, the inclined surface is located on the side of the clamping block away from the vent hole, a plurality of the support plates are grouped in three, and the three support plates are combined with each other to form a semicircular positioning groove.

[0008] Preferably, the mounting mechanism comprises two mounting plates, the bottom of the two mounting plates are fixedly connected with a slider, the bottom of the slider is provided with a slot, the top of the mounting plate is provided with a groove, the inside of the mounting plate is fixedly connected with a connecting rod, the connecting rod is fixedly connected with a third spring, the connecting rod is fixedly connected with a connecting plate, the end of the connecting rod away from the connecting plate is fixedly connected with a fixing rod, and the connecting plate is fixedly connected with a handle.

[0009] Preferably, the fixing rod passes through the inner wall of the mounting plate and extends to the inside of the groove, the end of the connecting rod away from the fixing rod passes through the inner wall of the mounting plate and extends to the side of the mounting plate, the two connecting plates are respectively located on the side away from each other of the two mounting plates, the connecting rod is located inside the third spring, a plurality of connecting rods are fixedly connected to the connecting plate, and the connecting rods are elastically connected to the inner wall of the mounting plate through the third spring.

[0010] Preferably, the size of the slider matches the size of the slide slot, the slider and the slide slot are slidably connected, the size of the groove matches the size of the block, and the groove and the block are snap-connected.

[0011] Preferably, the top cover mechanism includes a top cover body, a plurality of second air grooves are opened inside the top cover body, a second piston is slidably connected inside the second air groove, a pressure plate is fixedly connected to the end of the second piston away from the second air groove, a fourth spring is fixedly connected to the pressure plate, and two protrusions are fixedly connected to the bottom of the top cover body, and a plurality of fixing holes are evenly opened on the protrusions.

[0012] Preferably, the second piston passes through the inner wall of the second air groove and extends to the bottom of the top cover body. The second piston is located inside the fourth spring. The fourth spring is located between the pressure plate and the top cover body. The pressure plate is elastically connected to the bottom of the top cover body through the fourth spring. Several pressure plates are grouped in three, and the three pressure plates are combined with each other to form a semicircular extrusion groove.

[0013] Preferably, the size of the protrusion matches the size of the groove, the protrusion and the groove are snap-fitted, the size of the fixing hole matches the size of the fixing rod, and the fixing hole and the fixing rod are snap-fitted.

[0014] Preferably, the driving mechanism comprises a driving frame, a retracting cylinder is rotatably connected to the driving frame, a rotating plate is rotatably connected to the driving frame, and an end of the rotating plate away from the driving frame is rotatably connected to the top of the top cover body.

[0015] A method for pre-embedding an overhead optical cable, the pre-embedding method being as follows:

[0016] S1. First, fix the fixed base in the embedded groove dug on the ground through bolts and other structures, and fix one end of the cable on the retractable cylinder to the right side of the fixed base. At the same time, align the slider at the bottom of the mounting plate with the slide groove at the top of the fixed base, and slide the slider and the slide groove. Then move the traveling frame in a straight line from right to left. Because one end of the cable is fixed, the movement of the traveling frame will cause the retractable cylinder to rotate under the pull of the cable and release the cable, so that the cable can fall into the positioning groove formed by several groups of support plates. At the same time, the movement of the traveling frame will drive the top cover body to slide on the fixed base through the slider at the bottom of the mounting plate;

[0017] S2. When the cable falls onto the support plate, the support plate will be squeezed, so that the first piston moves toward the direction close to the first air groove, and squeezes the first spring and the air inside the first air groove, so that the size of the positioning groove formed by the three support plates is the same as that of the cable. At this time, the three support plates are respectively against the lower half of the cable through the elastic force of the first spring, supporting and positioning the cable, so that the cable is suspended. At the same time, the squeezed air inside the first air groove moves to the inside of the air bag through the vent hole, making the air bag more full, thereby squeezing the card block upward through the second spring, so that the card block moves to the inside of the slide groove;

[0018] S3. When the carriage drives the top cover body to move, the pressure plate moves driven by the top cover body and applies the previous thrust to the cable on the support plate, so that the cable can be stretched straight on the support plate. At the same time, the pressure plate at the bottom of the top cover body will abut against the cable on the support plate, and the second piston on the pressure plate moves toward the direction of the second air groove, squeezing the fourth spring and the air inside the second air groove. The pressure plate is supported by the air pressure inside the fourth spring and the second air groove, so that the cable is squeezed by the pressure plate, and the cable is fixed between the fixed base and the top cover body in cooperation with the support plate. Because the size of the squeezing groove formed by the three pressure plates is smaller than the size of the positioning groove, the amplitude of the movement of the pressure plate will be greater than the amplitude of the movement of the support plate, so that the fourth spring is squeezed to a greater extent and generates a greater elastic force, so that the cable can be squeezed by the greater elastic force;

[0019] S4. When the top cover body drives the mounting plate to move to the right side of the card block, the slider at the bottom of the mounting plate squeezes the inclined surface on the card block, and the card block moves down to the inside of the fixed base by squeezing the inclined surface, and squeezes the second spring until the mounting plate moves to the leftmost end of the fixed base, and the card slot at the bottom of the slider moves to the top of the card block. At this time, the card block is engaged with the card slot under the action of the elastic force of the second spring, and the mounting plate is fixed on the top of the fixed base. At this time, the cable is also suspended and fixed between the fixed base and the top cover body, completing the pre-embedding of the cable;

[0020] S5. Finally, when the cable needs to be inspected and maintained, it is only necessary to pull the handle away from the mounting plate, and drive the connecting rods to move away from the protrusion through the connecting plate, so that the fixing rod is released from the fixing hole and moved to the inside of the mounting plate, and the third spring is squeezed, and then the top cover body is removed upward to release the engagement between the protrusion and the groove, and the cable inside the fixed base can be inspected and maintained.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention facilitates the overhead fixing of the cable by arranging the cooperation of structures such as the supporting plate and the pressing plate. When the cable falls on the supporting plate, the supporting plate will be squeezed, so that the first piston moves in the direction close to the first air groove, and the first spring and the air inside the first air groove are squeezed, so that the size of the positioning groove formed by the three supporting plates is the same as that of the cable. At this time, the three supporting plates are respectively against the lower half of the cable through the elastic force of the first spring, so as to support and position the cable. At the same time, the pressing plate moves under the drive of the top cover body, which will apply the previous thrust to the cable on the supporting plate, so that the cable can be straightened on the supporting plate. At the same time, the pressing plate at the bottom of the top cover body will be against the cable on the supporting plate, and the second piston on the pressing plate will move in the direction close to the second air groove, squeezing the fourth spring and the air inside the second air groove. The pressing plate is supported by the air pressure inside the fourth spring and the second air groove, so that the cable is squeezed by the pressing plate, and the cable is fixed between the fixed base and the top cover body in cooperation with the supporting plate, so that cables of different sizes can be fixed overhead, thereby improving the scope of application of the device.

[0023] The present invention improves the stability of the overhead cable fixation by arranging the cooperation of the first spring and the fourth spring and other structures. Because the size of the extrusion groove formed by the three pressure plates is smaller than the size of the positioning groove, the amplitude of the movement of the pressure plate will be greater than the amplitude of the movement of the support plate, so that the amplitude of the extrusion of the fourth spring is larger and a larger elastic force is generated, so that the cable can be squeezed by the larger elastic force. At the same time, the three support plates are offset against the lower half of the cable through the elastic force of the first spring, so as to support and position the cable and balance the pressure of the pressure plate. When the device is subjected to impact force, because both the pressure plate and the support plate are movable, the device will convert the impact force into the elastic force of the first spring and the fourth spring and the kinetic energy of the support plate and the pressure plate, so that the device has a certain toughness for the overhead cable fixation, and reduces the risk of cable damage.

[0024] The present invention facilitates the packaging of the device by arranging the cooperation of structures such as the card block and the fixing rod, and the air squeezed in the first air groove will move into the interior of the air bag through the vent hole, so that the air bag is more filled, thereby squeezing the card block upwards through the second spring, so that the card block moves into the interior of the slide groove. The air squeezed in the first air groove will move into the interior of the air bag through the vent hole, so that the air bag is more filled, thereby squeezing the card block upwards through the second spring, so that the card block moves into the interior of the slide groove. When the top cover body drives the mounting plate to move to the right side of the card block, the slider at the bottom of the mounting plate will squeeze the inclined surface on the card block, and the card block will move downward to the interior of the fixed base through the squeezing inclined surface, and squeeze the second spring until the mounting plate moves to the leftmost end of the fixed base, at which time the card block will be engaged with the card groove under the action of the elastic force of the second spring, and the mounting plate will be fixed on the top of the fixed base, and the packaging is completed while the cable is pre-buried, simplifying the operation steps and facilitating operation.

[0025] The present invention facilitates the inspection and maintenance of the cable by arranging the coordination of structures such as the fixing rod and the protrusion. The handle is pulled in the direction away from the mounting plate, and the connecting plate drives a plurality of connecting rods to move in the direction away from the protrusion, so that the fixing rod is released from the clamping connection with the fixing hole and moves to the inside of the mounting plate, and the third spring is squeezed. Then, the top cover body is removed upward to release the clamping connection between the protrusion and the groove, and the cable inside the fixed base can be inspected and maintained conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 A schematic diagram of the structural relationship between the support plate and the pressure plate of the present invention;

[0028] Figure 3 This is a schematic diagram of the structural relationship between the clamping block and the sliding groove of the present invention;

[0029] Figure 4 A schematic diagram of the structural relationship between the first air groove and the air vent of the present invention;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the installation mechanism of the present invention;

[0031] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0032] Figure 7 It is a schematic diagram of the cross-sectional structure of the support mechanism of the present invention;

[0033] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0034] Fig. 9 It is a schematic diagram of the structural relationship between the protrusion and the groove of the present invention.

[0035] In the figure: 1. supporting mechanism; 101. fixed base; 102. slide groove; 103. first air groove; 104. first spring; 105. first piston; 106. support plate; 107. vent hole; 108. air bag; 109. second spring; 110. clamping block; 111. inclined plane; 2. mounting mechanism; 201. mounting plate; 202. slider; 203. clamping groove; 204. groove; 205. connecting rod; 206. third spring; 207. connecting plate; 208. fixing rod; 209. handle; 3. top cover mechanism; 301. top cover body; 302. second air groove; 303. second piston; 304. fourth spring; 305. pressure plate; 306. protrusion; 307. fixing hole; 4. traveling mechanism; 401. traveling frame; 402. retractable cylinder; 403. rotating plate. DETAILED DESCRIPTION

[0036] 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.

[0037] like Figures 1 to 9 As shown, the present invention provides a pre-buried device for an overhead optical cable, comprising a support mechanism 1, a mounting mechanism 2 is arranged on the support mechanism 1, a top cover mechanism 3 is arranged on the mounting mechanism 2, and a driving mechanism 4 is arranged on the top cover mechanism 3;

[0038] The supporting mechanism 1 includes a fixed base 101, two slide grooves 102 are provided on the top of the fixed base 101, a plurality of first air grooves 103 are provided inside the fixed base 101, first pistons 105 are slidably connected inside the three first air grooves 103, one end of the first piston 105 away from the first air groove 103 is fixedly connected to a support plate 106, one end of the first piston 105 close to the first air groove 103 is fixedly connected to a first spring 104, an air vent 107 is provided on the inner wall of the first air groove 103, an air bag 108 is arranged inside the air vent 107, two ends of the air bag 108 are elastically connected to two clamping blocks 110 respectively through second springs 109, and a slope 111 is provided on the top of the clamping block 110.

[0039] Both blocks 110 are located above the airbag 108. The block 110 extends through the fixed base 101 to the interior of the slide groove 102. The first piston 105 is elastically connected to the inner wall of the first air groove 103 through the first spring 104. The inclined surface 111 is located on the side of the block 110 away from the vent hole 107. A plurality of support plates 106 are grouped in three, and the three support plates 106 are combined with each other to form a semicircular positioning groove.

[0040] The above scheme is adopted: by setting the cooperation of the support plate 106 and the pressure plate 305 and other structures, it is convenient to fix the cable overhead. When the cable falls on the support plate 106, the support plate 106 will be squeezed, so that the first piston 105 moves in the direction close to the first air groove 103, and squeezes the first spring 104 and the air inside the first air groove 103, so that the size of the positioning groove formed by the three support plates 106 is the same as that of the cable. At this time, the three support plates 106 are respectively offset against the lower half of the cable through the elastic force of the first spring 104, so as to support and position the cable. At the same time, the pressure plate 305 moves driven by the top cover body 301 to exert the previous pressure on the cable on the support plate 106. The thrust can straighten the cable on the support plate 106. At the same time, the pressure plate 305 at the bottom of the top cover body 301 will abut against the cable on the support plate 106, and the second piston 303 on the pressure plate 305 will move towards the direction of the second air groove 302, squeezing the fourth spring 304 and the air inside the second air groove 302. The pressure plate 305 is supported by the air pressure inside the fourth spring 304 and the second air groove 302, so that the cable is squeezed by the pressure plate 305, and the cable is fixed between the fixed base 101 and the top cover body 301 in cooperation with the support plate 106, so that cables of different sizes can be fixed overhead, thereby improving the application range of the device.

[0041] like Figures 5 to 8 As shown, the mounting mechanism 2 includes two mounting plates 201, the bottoms of the two mounting plates 201 are fixedly connected with sliders 202, the bottoms of the sliders 202 are provided with slots 203, the tops of the mounting plates 201 are provided with grooves 204, the interiors of the mounting plates 201 are fixedly connected with connecting rods 205, the connecting rods 205 are fixedly connected with third springs 206, the connecting rods 205 are fixedly connected with connecting plates 207, the end of the connecting rods 205 away from the connecting plates 207 is fixedly connected with a fixing rod 208, and the connecting plates 207 are fixedly connected with a handle 209.

[0042] The fixing rod 208 passes through the inner wall of the mounting plate 201 and extends to the inside of the groove 204. The end of the connecting rod 205 away from the fixing rod 208 passes through the inner wall of the mounting plate 201 and extends to the side of the mounting plate 201. The two connecting plates 207 are respectively located on the side away from each other of the two mounting plates 201. The connecting rod 205 is located inside the third spring 206. A plurality of connecting rods 205 are fixedly connected to the connecting plate 207. The connecting rod 205 is elastically connected to the inner wall of the mounting plate 201 through the third spring 206. The size of the slider 202 is adapted to the size of the slide groove 102. The slider 202 is slidably connected to the slide groove 102. The size of the groove 204 is adapted to the size of the block 110. The groove 204 is clamped to the block 110.

[0043] The above scheme is adopted: by setting the cooperation of the structures such as the card block 110 and the fixing rod 208, it is convenient to package the device, and the air squeezed inside the first air groove 103 will move to the inside of the air bag 108 through the vent hole 107, so that the air bag 108 is more filled, so that the card block 110 is squeezed upward by the second spring 109, so that the card block 110 moves to the inside of the slide groove 102. The air squeezed inside the first air groove 103 will move to the inside of the air bag 108 through the vent hole 107, so that the air bag 108 is more filled, so that the card block 110 is squeezed upward by the second spring 109, so that the card block 110 moves to the inside of the slide groove 1 02, when the top cover body 301 drives the mounting plate 201 to move to the right side of the card block 110, the slider 202 at the bottom of the mounting plate 201 will squeeze the inclined surface 111 on the card block 110, and the card block 110 will move down to the inside of the fixed base 101 by squeezing the inclined surface 111, and squeeze the second spring 109, until the mounting plate 201 moves to the leftmost end of the fixed base 101, the card block 110 will be engaged with the card slot 203 under the action of the elastic force of the second spring 109, and the mounting plate 201 is fixed to the top of the fixed base 101, and the packaging is completed while the cable is pre-buried, which simplifies the operation steps and facilitates operation.

[0044] like Figures 1 to 9 As shown, the top cover mechanism 3 includes a top cover body 301, a plurality of second air grooves 302 are opened inside the top cover body 301, a second piston 303 is slidably connected inside the second air groove 302, a pressure plate 305 is fixedly connected to the end of the second piston 303 away from the second air groove 302, a fourth spring 304 is fixedly connected to the pressure plate 305, and two protrusions 306 are fixedly connected to the bottom of the top cover body 301, and a plurality of fixing holes 307 are evenly opened on the protrusions 306.

[0045] The second piston 303 passes through the inner wall of the second air groove 302 and extends to the bottom of the top cover body 301. The second piston 303 is located inside the fourth spring 304. The fourth spring 304 is located between the pressure plate 305 and the top cover body 301. The pressure plate 305 is elastically connected to the bottom of the top cover body 301 through the fourth spring 304. Several pressure plates 305 are grouped into three, and the three pressure plates 305 are combined with each other to form a semicircular extrusion groove. The size of the protrusion 306 is adapted to the size of the groove 204, and the protrusion 306 is clamped with the groove 204. The size of the fixing hole 307 is adapted to the size of the fixing rod 208, and the fixing hole 307 is clamped with the fixing rod 208. The size of the extrusion groove is smaller than the size of the positioning groove.

[0046] The traveling mechanism 4 includes a traveling frame 401 , on which a retracting cylinder 402 is rotatably connected, and on which a rotating plate 403 is rotatably connected. An end of the rotating plate 403 away from the traveling frame 401 is rotatably connected to the top of the top cover body 301 .

[0047] The above scheme is adopted: by setting the cooperation of the first spring 104 and the fourth spring 304 and other structures, the stability of the overhead cable fixation is improved. Because the size of the extrusion groove formed by the three pressure plates 305 is smaller than the size of the positioning groove, the movement amplitude of the pressure plate 305 will be greater than the movement amplitude of the support plate 106, so that the fourth spring 304 is squeezed to a larger amplitude and generates a larger elastic force, so that the cable can be squeezed by the larger elastic force. At the same time, the three support plates 106 are offset against the lower half of the cable through the elastic force of the first spring 104, support and position the cable, and balance the pressure of the pressure plate 305. When the device is subjected to impact force, because both the pressure plate 305 and the support plate 106 are movable, the device will convert the impact force into the elastic force of the first spring 104 and the fourth spring 304 and the kinetic energy of the support plate 106 and the pressure plate 305, and at the same time, the device has a certain toughness for the overhead cable fixation, reducing the risk of cable damage.

[0048] A method for pre-embedding an overhead optical cable, the pre-embedding method is as follows:

[0049] S1. First, fix the fixed base 101 in the embedded groove dug on the ground through bolts and other structures, and fix one end of the cable on the retractable cylinder 402 to the right side of the fixed base 101, and at the same time align the slider 202 at the bottom of the mounting plate 201 with the slide groove 102 at the top of the fixed base 101, and slide the slider 202 and the slide groove 102, and then move the traveling frame 401 from right to left in a straight line. Because one end of the cable is fixed, the movement of the traveling frame 401 will cause the retractable cylinder 402 to rotate under the pull of the cable and release the cable, so that the cable can fall into the positioning groove formed by several groups of support plates 106. At the same time, the movement of the traveling frame 401 will drive the top cover body 301 to slide on the fixed base 101 through the slider 202 at the bottom of the mounting plate 201;

[0050] S2. When the cable falls onto the support plate 106, the support plate 106 will be squeezed, so that the first piston 105 moves toward the direction close to the first air groove 103, and squeezes the first spring 104 and the air inside the first air groove 103, so that the size of the positioning groove formed by the three support plates 106 is the same as that of the cable. At this time, the three support plates 106 are respectively offset against the lower half of the cable through the elastic force of the first spring 104, supporting and positioning the cable, so that the cable is suspended. At the same time, the squeezed air inside the first air groove 103 will move to the inside of the air bag 108 through the vent hole 107, making the air bag 108 more full, thereby squeezing the block 110 upward through the second spring 109, so that the block 110 moves to the inside of the slide groove 102;

[0051] S3. When the traveling frame 401 drives the top cover body 301 to move, the pressing plate 305 moves under the drive of the top cover body 301 and applies the previous thrust to the cable on the support plate 106, so that the cable can be stretched straight on the support plate 106. At the same time, the pressing plate 305 at the bottom of the top cover body 301 will abut against the cable on the support plate 106, and the second piston 303 on the pressing plate 305 will move toward the direction of the second air groove 302, squeezing the fourth spring 304 and the air inside the second air groove 302, and the fourth spring 304 will release the air inside the second air groove 302. 04 and the air pressure inside the second air groove 302 support the pressing plate 305, so that the cable is squeezed by the pressing plate 305, and the cable is fixed between the fixed base 101 and the top cover body 301 in cooperation with the supporting plate 106. Because the size of the squeezing groove formed by the three pressing plates 305 is smaller than the size of the positioning groove, the movement amplitude of the pressing plate 305 will be greater than the movement amplitude of the supporting plate 106, so that the fourth spring 304 is squeezed to a greater extent and generates a greater elastic force, so that the cable can be squeezed by a greater elastic force;

[0052] S4. When the top cover body 301 drives the mounting plate 201 to move to the right side of the card block 110, the slider 202 at the bottom of the mounting plate 201 squeezes the inclined surface 111 on the card block 110, and squeezes the inclined surface 111 to make the card block 110 move down to the inside of the fixed base 101, and squeezes the second spring 109, until the mounting plate 201 moves to the leftmost end of the fixed base 101, and the card slot 203 at the bottom of the slider 202 moves to the top of the card block 110. At this time, the card block 110 is engaged with the card slot 203 under the action of the elastic force of the second spring 109, and the mounting plate 201 is fixed on the top of the fixed base 101. At this time, the cable is also suspended and fixed between the fixed base 101 and the top cover body 301, and the pre-embedding of the cable is completed;

[0053] S5. Finally, when the cable needs to be inspected and maintained, it is only necessary to pull the handle 209 away from the mounting plate 201, and drive the connecting rods 205 to move away from the protrusion 306 through the connecting plate 207, so that the fixing rod 208 is released from the fixing hole 307 and moves to the inside of the mounting plate 201, and the third spring 206 is squeezed, and then the top cover body 301 is removed upward to release the protrusion 306 from the groove 204, and the cable inside the fixed base 101 can be inspected and maintained.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0055] 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. A pre-buried device for an overhead optical cable, comprising a supporting mechanism (1), characterized in that: The support mechanism (1) is provided with a mounting mechanism (2), the mounting mechanism (2) is provided with a top cover mechanism (3), and the top cover mechanism (3) is provided with a driving mechanism (4); The support mechanism (1) comprises a fixed base (101), the top of the fixed base (101) is provided with two slide grooves (102), the interior of the fixed base (101) is provided with a plurality of first air grooves (103), the interiors of the three first air grooves (103) are all slidably connected with first pistons (105), one end of the first piston (105) away from the first air groove (103) is fixedly connected with a support plate (106), one end of the first piston (105) close to the first air groove (103) is fixedly connected with a first spring (104), an inner wall of the first air groove (103) is provided with an air vent (107), an air bag (108) is arranged inside the air vent (107), two ends of the air bag (108) are elastically connected to two clamping blocks (110) respectively through a second spring (109), and the top of the clamping block (110) is provided with an inclined surface (111).

2. The pre-buried device for an overhead optical cable according to claim 1, characterized in that: The two clamping blocks (110) are both located above the airbag (108), the clamping blocks (110) penetrate the fixed base (101) and extend to the interior of the slide groove (102), the first piston (105) is elastically connected to the inner wall of the first air groove (103) through the first spring (104), the inclined surface (111) is located on the side of the clamping block (110) away from the vent hole (107), and the plurality of support plates (106) are grouped in three, and the three support plates (106) are combined to form a semicircular positioning groove.

3. The pre-buried device for an overhead optical cable according to claim 1, characterized in that: The mounting mechanism (2) comprises two mounting plates (201), the bottoms of the two mounting plates (201) are fixedly connected with sliders (202), the bottoms of the sliders (202) are provided with a slot (203), the tops of the mounting plates (201) are provided with a groove (204), the interiors of the mounting plates (201) are fixedly connected with connecting rods (205), the connecting rods (205) are fixedly connected with a third spring (206), the connecting rods (205) are fixedly connected with a connecting plate (207), one end of the connecting rods (205) away from the connecting plate (207) is fixedly connected with a fixing rod (208), and the connecting plate (207) is fixedly connected with a handle (209).

4. The pre-buried device for an overhead optical cable according to claim 3, characterized in that: The fixing rod (208) passes through the inner wall of the mounting plate (201) and extends to the inside of the groove (204); one end of the connecting rod (205) away from the fixing rod (208) passes through the inner wall of the mounting plate (201) and extends to the side of the mounting plate (201); the two connecting plates (207) are respectively located on the sides of the two mounting plates (201) away from each other; the connecting rod (205) is located inside the third spring (206); a plurality of connecting rods (205) are fixedly connected to the connecting plate (207); and the connecting rod (205) is elastically connected to the inner wall of the mounting plate (201) via the third spring (206).

5. The pre-buried device for an overhead optical cable according to claim 3, characterized in that: The size of the slider (202) matches the size of the slide groove (102), the slider (202) and the slide groove (102) are slidably connected, the size of the groove (204) matches the size of the clamping block (110), and the groove (204) and the clamping block (110) are clamped.

6. The pre-buried device for an overhead optical cable according to claim 3, characterized in that: The top cover mechanism (3) comprises a top cover body (301), a plurality of second air grooves (302) are provided inside the top cover body (301), a second piston (303) is slidably connected inside the second air groove (302), a pressure plate (305) is fixedly connected to one end of the second piston (303) away from the second air groove (302), a fourth spring (304) is fixedly connected to the pressure plate (305), and two protrusions (306) are fixedly connected to the bottom of the top cover body (301), and a plurality of fixing holes (307) are evenly provided on the protrusions (306).

7. The pre-buried device for an overhead optical cable according to claim 6, characterized in that: The second piston (303) passes through the inner wall of the second air groove (302) and extends to the bottom of the top cover body (301). The second piston (303) is located inside the fourth spring (304). The fourth spring (304) is located between the pressure plate (305) and the top cover body (301). The pressure plate (305) is elastically connected to the bottom of the top cover body (301) through the fourth spring (304). A plurality of pressure plates (305) are grouped in three, and the three pressure plates (305) are combined to form a semicircular extrusion groove.

8. The pre-buried device for an overhead optical cable according to claim 6, characterized in that: The size of the protrusion (306) matches the size of the groove (204), and the protrusion (306) and the groove (204) are snap-fitted together; the size of the fixing hole (307) matches the size of the fixing rod (208), and the fixing hole (307) and the fixing rod (208) are snap-fitted together.

9. The pre-buried device for an overhead optical cable according to claim 6, characterized in that: The driving mechanism (4) comprises a driving frame (401), a retracting cylinder (402) is rotatably connected to the driving frame (401), a rotating plate (403) is rotatably connected to the driving frame (401), and an end of the rotating plate (403) away from the driving frame (401) is rotatably connected to the top of the top cover body (301).

10. A method for pre-embedding an overhead optical cable, applied to a pre-embedding device for an overhead optical cable as claimed in claims 1 to 9, characterized in that: The pre-embedding method is as follows: S1. First, the fixed base (101) is fixed in a pre-buried groove dug on the ground by means of bolts and other structures, and one end of the cable on the retractable cylinder (402) is fixed on the right side of the fixed base (101). At the same time, the slider (202) at the bottom of the mounting plate (201) is aligned with the slide groove (102) at the top of the fixed base (101), and the slider (202) slides between the slide groove (102), and then the traveling frame (401) is moved linearly from right to left. Because one end of the cable is fixed, the movement of the traveling frame (401) causes the retractable cylinder (402) to rotate under the pull of the cable and release the cable, so that the cable can fall into the positioning groove formed by the plurality of groups of support plates (106). At the same time, the movement of the traveling frame (401) drives the top cover body (301) to slide on the fixed base (101) through the slider (202) at the bottom of the mounting plate (201); S2. When the cable falls onto the support plate (106), the support plate (106) is squeezed, so that the first piston (105) moves toward the direction close to the first air groove (103), and squeezes the first spring (104) and the air inside the first air groove (103), so that the size of the positioning groove formed by the three support plates (106) is the same as that of the cable. At this time, the three support plates (106) are respectively against the lower half of the cable through the elastic force of the first spring (104), supporting and positioning the cable, so that the cable is suspended. At the same time, the squeezed air inside the first air groove (103) moves to the inside of the air bag (108) through the vent hole (107), making the air bag (108) more full, thereby squeezing the block (110) upward through the second spring (109), so that the block (110) moves to the inside of the slide groove (102); S3. When the traveling frame (401) drives the top cover body (301) to move, the pressure plate (305) moves driven by the top cover body (301) to apply the previous thrust to the cable on the support plate (106), so that the cable can be stretched straight on the support plate (106). At the same time, the pressure plate (305) at the bottom of the top cover body (301) will abut against the cable on the support plate (106), and the second piston (303) on the pressure plate (305) will move in the direction close to the second air groove (302), squeezing the fourth spring (304) and the air inside the second air groove (302), and passing through the fourth spring (304). The spring (304) and the air pressure inside the second air groove (302) support the pressing plate (305), so that the cable is squeezed by the pressing plate (305), and the cable is fixed between the fixed base (101) and the top cover body (301) in cooperation with the supporting plate (106). Since the size of the squeezing groove formed by the three pressing plates (305) is smaller than the size of the positioning groove, the movement amplitude of the pressing plate (305) is greater than the movement amplitude of the supporting plate (106), so that the fourth spring (304) is squeezed to a greater extent and generates a greater elastic force, so that the cable can be squeezed by the greater elastic force; S4. When the top cover body (301) drives the mounting plate (201) to move to the right side of the clamping block (110), the slider (202) at the bottom of the mounting plate (201) squeezes the inclined surface (111) on the clamping block (110), and by squeezing the inclined surface (111), the clamping block (110) moves downward to the inside of the fixed base (101) and squeezes the second spring (109), until the mounting plate (201) moves to the leftmost end of the fixed base (101), and the clamping groove (203) at the bottom of the slider (202) moves to the top of the clamping block (110). At this time, the clamping block (110) is clamped between the clamping groove (203) under the action of the elastic force of the second spring (109), and the mounting plate (201) is fixed on the top of the fixed base (101). At this time, the cable is also suspended and fixed between the fixed base (101) and the top cover body (301), and the pre-embedding of the cable is completed; S5. Finally, when the cable needs to be inspected and maintained, it is only necessary to pull the handle (209) away from the mounting plate (201), and drive the plurality of connecting rods (205) to move away from the protrusion (306) through the connecting plate (207), so that the fixing rod (208) is released from the clamping connection with the fixing hole (307) and moves to the inside of the mounting plate (201), and the third spring (206) is squeezed, and then the top cover body (301) is removed upward to release the clamping connection between the protrusion (306) and the groove (204), and the cable inside the fixed base (101) can be inspected and maintained.

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