Clamping and implanting device for installing multi-core optical cable in formation micro-drill hole

Abstract

The invention provides a clamping and implanting device for installing a multi-core optical cable in a formation micro-drilling hole, and belongs to the field of optical fiber installation equipment. The clamping and implanting device is of an axisymmetric structure and comprises two axisymmetric clamping units. The clamping unit comprises a fixing base, a fixing plate, a telescopic spring, a supporting spring, a clamping device and a pressing plate. And the multi-core optical cable is vertically positioned at the axis of the clamping and implanting device. The optical cable conveying device achieves slow conveying of optical cables in micro drilling, and is simple in structure, convenient to install and convenient to popularize and promote. And the optical cable is clamped through the elastic ball, so that the optical cable cannot be damaged in the installation process, and the installation safety is high. And in the installation process of the optical cable, the position of the optical cable entering the micro drill hole can be adjusted by adjusting the clamping skewness, and hole collapse or optical cable bending in the installation process is avoided.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber installation equipment, and in particular to a clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum. Background Art

[0002] When conducting fiber-optic monitoring in low-disturbance formations, micro-drilling is typically used to install sensor cables. Currently, manual installation is the primary method. However, when installing the optical cable into the micro-drilled hole, manual vibration can easily cause the cable to bend or the hole to collapse and become clogged. Currently, some optical cable installation methods are not suitable for micro-drilled hole installation.

[0003] For example, Chinese patent document CN104977685B discloses an "Optical Cable Installation Device" that installs optical cables into pipes by air blowing. This device solves the problem of difficult installation of optical cables in pipes, but the device cannot be used in soil layers, as air blowing will cause micro-drilling holes to become clogged and generate a lot of dust.

[0004] Chinese patent document CN118348650A discloses an auxiliary installation device for optical cables. The device automatically lifts the optical cable by mounting it on a lifting device, but the micro-drilled holes are too small for the lifting device to enter.

[0005] Chinese patent document CN112459084A discloses "A ground trenching structure for pre-buried optical cables and an optical cable installation device", which realizes automatic installation of optical cables through an electrically controlled tractor and an installation plate, but the device cannot install optical cables in drilled holes.

[0006] Chinese patent document CN118818695B discloses "An auxiliary fixing frame for optical cable installation and an auxiliary fixing method for optical cable installation". After a movable component clamps the sling and optical cable, the movable component is used to push the frame along the sling to install the optical cable. However, this device is used for installing high-altitude optical cables and cannot be used in the ground.

[0007] Chinese patent document CN118444448A discloses a "laying device for optical cable installation". The device installs the optical cable on the ground without damage through the coordinated work of a material guiding mechanism, a stabilizing mechanism and a reinforcing mechanism, but the device is only applicable to the installation of ground optical cables.

[0008] Chinese patent document CN117215019A discloses an auxiliary traction device for optical cable installation, which uses a traction mechanism and a boosting mechanism to achieve the migration of the optical cable. However, the device has a complex structure and cannot ensure the verticality of the optical cable after traction.

[0009] In summary, existing optical cable installation equipment and methods are difficult to achieve the installation of optical cables inside ground micro-bores. Based on this, the present invention designs a clamping and implanting device for installing multi-core optical cables in ground micro-bores. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to remedy the defects of the prior art, specifically, to achieve the clamping and implantation of multi-core optical cables in micro-drilled holes in the stratum.

[0011] In order to achieve the above objectives, the present invention adopts the following technical solutions.

[0012] A clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum. The clamping and implanting device has an axisymmetric structure and includes two axisymmetric clamping units. The clamping units include a fixed base, a fixed plate, a telescopic spring, a support spring, a clamping device, and a pressure plate. The multi-core optical cable is located vertically at the axis of the clamping and implanting device.

[0013] One surface of the fixing plate is designated as the front surface A, and the other surface is designated as the back surface B. A vertical square groove is provided on both sides of the front surface A. Each square groove has n through holes at equal intervals. A threaded hole is provided on the back surface B, and the hole is located at the center of the area formed by the two square grooves.

[0014] The clamping device includes an extrusion plate, 2n small cylinders, and 2n elastic balls. One surface of the extrusion plate is designated as the front surface C. The bottoms of the 2n small cylinders are welded to the front surface C, and their positions correspond to the positions of the 2n through-holes. After the 2n small cylinders pass through the through-holes and reach the front surface A, an elastic ball is welded to the top of each small cylinder, and each elastic ball partially falls into the square groove. The extrusion plate is provided with through holes at positions corresponding to the threaded holes. A tightening screw passes through the through holes and is screwed to the threaded holes on the fixing plate to adjust the spacing between the extrusion plate and the fixing plate.

[0015] The fixing plate is fixed between the pressing plate and the fixed base by cooperating with the telescopic spring and the supporting spring;

[0016] The elastic balls in the two clamping units are aligned with each other to form an axisymmetric clamping and implanting device, and the multi-core optical cable is vertically located at the axis of the clamping and implanting device.

[0017] Preferably, a return spring is installed on the upper and lower sides respectively between the fixing plate and the extrusion plate.

[0018] Preferably, the diameters of the through hole and the threaded hole are adapted to the diameter of the tightening screw; the diameter of the small cylinder is adapted to the aperture of the through hole; the width of the square groove is adapted to the size of the ball body of the elastic ball falling into the square groove; the depth of the square groove is 1 / 2 of the thickness of the fixed plate; and the depth of the threaded hole is 2 / 3 of the thickness of the fixed plate.

[0019] Preferably, the fixing plate is fixed between the pressure plate and the fixed base by cooperating with the telescopic spring and the support spring. The specific structure and cooperation are as follows:

[0020] The fixed base includes a bottom plate and a limit block, wherein the limit block is a hollow cuboid, wherein the hollow portion is a limit slot; the bottom of the limit block is welded to one side of the upper surface of the bottom plate, and the telescopic spring is located at the center of the limit slot, and the bottom is welded to the upper surface of the bottom plate;

[0021] The fixed plate is vertical, and the bottom extends into the limit slot and is welded to the top of the telescopic spring. The bottom of the support spring is welded to the other side of the upper surface of the bottom plate parallel to the limit block; the top of the fixed plate and the top of the support spring are respectively fixed to the bottom of the pressure plate by welding, and are both perpendicular to the bottom plate.

[0022] Preferably, the depth of the bottom of the fixing plate extending into the limiting slot is not less than 1 / 3 of the height of the limiting slot.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The clamping and implanting device of the present invention clamps the optical cable and then presses the pressure plate to achieve slow delivery of the optical cable in the micro-drilled hole. The device has a simple structure and is easy to install, making it easy to popularize and promote.

[0025] (2) This device clamps the optical cable through an elastic ball, which will not cause damage to the optical cable during installation, and the installation safety is high.

[0026] (3) During the installation of the optical cable, the device can adjust the position of the optical cable entering the micro-drilled hole by adjusting the deflection of the clamp, thereby avoiding hole collapse or cable bending during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the clamping implant device.

[0028] Figure 2 Schematic diagram of the position of the square groove and through hole in the fixed plate.

[0029] Figure 3 Schematic diagram of the position of small cylinders in the extrusion plate.

[0030] Figure 4 Schematic diagram of the clamping device structure.

[0031] Figure 5 Schematic diagram of the fixed base structure.

[0032] Among them: 1. Fixed base; 2. Telescopic spring; 3. Support spring; 4. Fixed plate; 5. Clamping device; 6. Extrusion plate; 7. Pressing plate; 8. Multi-core optical cable; 9. Through hole; 10. Reset spring; 11. Square groove; 12. Through hole; 13. Threaded hole; 14. Small cylinder; 15. Elastic ball; 16. Tightening screw; 17. Bottom plate; 18. Limit block; 19. Limit slot. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0034] Figure 1 This is a schematic diagram of the overall structure of the clamping implant device. Figure 2 This is a schematic diagram of the position of the square groove and through hole in the fixed plate. Figure 3 Schematic diagram of the position of small cylinders in the extrusion plate. Figure 4 is a schematic diagram of the clamping device structure. Figure 5 The figure above is a schematic diagram of the fixed base structure. As can be seen from the above figures, the present invention provides a clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a formation. The clamping and implanting device has an axisymmetric structure and includes two axisymmetric clamping units. The clamping units include a fixed base 1, a fixed plate 4, a telescopic spring 2, a support spring 3, a clamping device 5, and a pressure plate 7. The multi-core optical cable 8 is positioned perpendicular to the axis of the clamping and implanting device.

[0035] One surface of the fixing plate 4 is marked as the front surface A, and the other surface is marked as the back surface B. A vertical square groove 11 is opened on both sides of the front surface A. Each square groove 11 has n through holes 12 at equal intervals. A threaded hole 13 is opened on the back surface B, and its position is located at the center of the area formed by the two square grooves 11.

[0036] The clamping device 5 includes an extrusion plate 6, 2n small cylinders 14, and 2n elastic balls 15; one plate surface of the extrusion plate 6 is marked as the front side C, and the bottoms of the 2n small cylinders 14 are welded on the front side C, and the positions correspond to the positions of the 2n through holes 12; after the 2n small cylinders 14 pass through the through holes 12 to reach the front side A, an elastic ball 15 is welded on the top of each small cylinder 14, and each elastic ball 15 partially falls into the square groove 11; a through hole 9 is opened at a position corresponding to the threaded hole 13 on the extrusion plate 6, and a tightening screw 16 passes through the through hole 9 and is screwed to the threaded hole 13 on the fixing plate 4 to adjust the distance between the extrusion plate 6 and the fixing plate 4.

[0037] The fixing plate 4 is fixed between the pressing plate 7 and the fixed base 1 by cooperating with the telescopic spring 2 and the supporting spring 3 .

[0038] The elastic balls 15 in the two clamping units are aligned to form an axisymmetric clamping and implanting device, and the multi-core optical cable 8 is located vertically at the axis of the clamping and implanting device.

[0039] In this embodiment, a return spring 10 is installed between the upper and lower sides of the fixing plate 4 and the extrusion plate 6 respectively.

[0040] In this embodiment, the diameters of the through hole 9 and the threaded hole 13 are adapted to the diameter of the tightening screw 16; the diameter of the small cylinder 14 is adapted to the aperture of the through hole 12; the width of the square groove 11 is adapted to the size of the ball body of the elastic ball 15 falling into the square groove 11; the depth of the square groove 11 is 1 / 2 of the thickness of the fixing plate 4; the depth of the threaded hole 13 is 2 / 3 of the thickness of the fixing plate 4.

[0041] In this embodiment, the fixing plate 4 is fixed between the pressing plate 7 and the fixed base 1 by cooperating with the telescopic spring 2 and the support spring 3. The specific structure and cooperation are as follows:

[0042] The fixed base 1 includes a bottom plate 17 and a limit block 18. The limit block 18 is a hollow cuboid, and the hollow portion thereof is a limit slot 19. The bottom of the limit block 18 is welded to one side of the upper surface of the bottom plate 17. The telescopic spring 2 is located at the center of the limit slot 19, and the bottom is welded to the upper surface of the bottom plate 17.

[0043] The fixing plate 4 is vertical, and the bottom extends into the limit slot 19 and is welded to the top of the telescopic spring 2. The bottom of the support spring 3 is welded to the other side of the upper surface of the bottom plate 17 parallel to the limit block 18; the top of the fixing plate 4 and the top of the support spring 3 are respectively fixed to the bottom of the pressure plate 7 by welding, and are both perpendicular to the bottom plate 17.

[0044] In this embodiment, the depth of the bottom of the fixing plate 4 extending into the limiting slot 19 is not less than 1 / 3 of the height of the limiting slot 19 .

[0045] In this embodiment, n=6.

[0046] As can be seen from the above device, in this embodiment, the clamping device 5 is fixed on the fixing plate 4 by means of a small cylinder 14 passing through the through hole 13 .

[0047] In this embodiment, the function of tightening the screw 16 is to push the extrusion plate 6 toward the fixing plate 4 , and to clamp the multi-core optical cable 8 using the elastic balls 15 on both sides.

[0048] In this embodiment, one of the functions of the pressure plate 7 is transportation, that is, when the elastic ball 15 clamps the multi-core optical cable 8, the pressure plate 7 is pressed to send the multi-core optical cable 8 into the micro-drilled hole. After transporting a certain distance, the tightening screw 16 is loosened, the reset spring 10 resets the extrusion plate 6, and the support spring 3 and the telescopic spring 2 reset the pressure plate 7. By repeating the above operation, the multi-core optical cable 8 is slowly sent into the micro-drilled hole.

Claims

1. A clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum, characterized in that: The clamping implantation device is an axisymmetric structure, comprising two axisymmetric clamping units; the clamping units comprise a fixed base (1), a fixed plate (4), a telescopic spring (2), a support spring (3), a clamping device (5), and a pressure plate (7); the multi-core optical cable (8) is vertically located at the axis of the clamping implantation device; One surface of the fixing plate (4) is designated as the front surface A, and the other surface is designated as the back surface B. A vertical square groove (11) is provided on both sides of the front surface A. Each square groove (11) has n through holes (12) provided at equal intervals therein. A threaded hole (13) is provided on the back surface B, and the threaded hole (13) is located at the center of the area formed by the two square grooves (11). The clamping device (5) includes an extrusion plate (6), 2n small cylinders (14), and 2n elastic balls (15); one plate surface of the extrusion plate (6) is marked as the front surface C, and the bottoms of the 2n small cylinders (14) are welded on the front surface C, and the positions thereof correspond to the positions of the 2n through holes (12); after the 2n small cylinders (14) pass through the through holes (12) and reach the front surface A, an elastic ball (15) is welded on the top of each small cylinder (14), and each elastic ball (15) partially falls into the square groove (11); a through hole (9) is opened at a position corresponding to the threaded hole (13) of the extrusion plate (6), and a tightening screw (16) passes through the through hole (9) and is screwed to the threaded hole (13) on the fixing plate (4) to adjust the distance between the extrusion plate (6) and the fixing plate (4); The fixed plate (4) is fixed between the pressure plate (7) and the fixed base (1) by cooperating with the telescopic spring (2) and the support spring (3); The elastic balls (15) in the two clamping units are aligned to form an axisymmetric clamping and implanting device, and the multi-core optical cable (8) is vertically located at the axis of the clamping and implanting device.

2. A clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum according to claim 1, characterized in that: A return spring (10) is installed on the upper and lower sides between the fixing plate (4) and the extrusion plate (6).

3. A clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum according to claim 1, characterized in that: The diameters of the through hole (9) and the threaded hole (13) are adapted to the diameter of the tightening screw (16); the diameter of the small cylinder (14) is adapted to the aperture of the through hole (12); the width of the square groove (11) is adapted to the size of the ball body of the elastic ball (15) falling into the square groove (11); the depth of the square groove (11) is 1 / 2 of the thickness of the fixing plate (4); and the depth of the threaded hole (13) is 2 / 3 of the thickness of the fixing plate (4).

4. A clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum according to claim 1, characterized in that: The fixed plate (4) is fixed between the pressure plate (7) and the fixed base (1) by cooperating with the telescopic spring (2) and the support spring (3). The specific structure and cooperation are as follows: The fixed base (1) comprises a bottom plate (17) and a limit block (18), wherein the limit block (18) is a hollow cuboid, wherein the hollow portion thereof is a limit slot (19); the bottom of the limit block (18) is welded to one side of the upper surface of the bottom plate (17); the telescopic spring (2) is located at the inner center of the limit slot (19), and the bottom thereof is welded to the upper surface of the bottom plate (17); The fixing plate (4) is vertical, and its bottom extends into the limiting slot (19) and is welded to the top of the telescopic spring (2). The bottom of the supporting spring (3) is welded to the other side of the upper surface of the bottom plate (17) parallel to the limiting block (18); the top of the fixing plate (4) and the top of the supporting spring (3) are respectively fixed to the bottom of the pressing plate (7) by welding, and are both perpendicular to the bottom plate (17).

5. The clamping and implanting device for installing a multi-core optical cable in a micro-drilled hole in a stratum according to claim 3, characterized in that: The depth of the bottom of the fixing plate (4) extending into the limiting slot (19) is not less than 1 / 3 of the height of the limiting slot (19).

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