Cable installation protection device and cable installation method

Abstract

The present invention discloses a cable installation protection device and a cable installation method, which relate to the technical field of cable installation and laying, and solve the problem that the cable may directly contact and rub against the wellhead of a cable well, which may cause wear of the cable sheath during the friction process, reduce the insulation performance of the cable surface, and thus affect the service life of the cable. The present invention comprises a mounting frame, on which a guide wheel is rotatably mounted, a hollow tube one is mounted on the left side of the mounting frame, and the connection between the hollow tube one and the mounting frame is a fixed connection, a hollow tube two is movably sleeved on the outer side of the hollow tube one, and a plurality of limit blocks are fixedly mounted on the outer side of the hollow tube one; the present invention installs a guide wheel and a limit assembly, and the guide wheel, half wheel one, half wheel two and roller two conduct the cable, so as to avoid the cable skin from contacting and rubbing with the wellhead and side wall of the cable well during the laying of the cable, and prevent the cable from directly rubbing against the cable well and causing wear of its skin.

Description

Technical Field

[0001] The invention relates to the technical field of cable installation and laying, and in particular to a cable installation protection device and a cable installation method. Background Art

[0002] A cable well is an underground or above-ground structure designed specifically to house and protect cables, usually made of concrete or metal materials with sufficient strength and durability to protect the cables from physical damage and environmental impacts.

[0003] When laying cables in existing cable wells, personnel first place the cable bracket with the cable wrapped around it next to the wellhead, then put the cable into the cable well, and lay the cable in the cable well by pulling the cable end. However, in the process of pulling the cable, the cable will directly contact and rub against the wellhead of the cable well, which may cause the outer sheath of the cable to wear and reduce the insulation performance of the cable surface, thus affecting the service life of the cable. Summary of the invention

[0004] The object of the present invention is to provide a cable installation protection device and a cable installation method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cable installation and protection device comprises a mounting frame, a guide wheel is rotatably mounted on the mounting frame, a hollow tube 1 is mounted on the left side of the mounting frame, and the connection between the hollow tube 1 and the mounting frame is a fixed connection, a hollow tube 2 is movably sleeved on the outer side of the hollow tube 1, a plurality of limit blocks are fixedly mounted on the outer side of the hollow tube 1, and the limit blocks are slidably connected to the hollow tube 2 through reserved movable grooves, and also comprises a limit assembly for limiting the direction of the cable, the limit assembly is mounted on the right side of the hollow tube 2; a driving assembly for driving the limit assembly to move, the driving assembly is mounted on the lower side of the limit assembly, the driving assembly comprises a pull rope; a winding assembly for winding and releasing the pull rope, the winding assembly is mounted on the left side of the hollow tube 1 and close to the upper end of the hollow tube 1; a deceleration assembly for slowing down the unwinding speed of the winding assembly, the deceleration assembly is mounted on the outer side of the winding assembly, the number of the deceleration assemblies is two groups, and they are symmetrically distributed.

[0007] Preferably, the limiting assembly includes a support plate fixedly mounted on the right side of the hollow tube 2, and the support plate is close to the lower end of the hollow tube 2, and two symmetrically distributed support seats 1 are fixedly mounted on the upper end of the support plate, half wheel 1 and half wheel 2 are mounted between the two support seats 1, and the half wheel 1 and the half wheel 2 are rotatably connected to the two support seats 1 respectively, and a pin block is fixedly mounted on the side of the half wheel 1 close to the half wheel 2, and the pin block is used to enhance the connection strength between the half wheel 1 and the half wheel 2.

[0008] Preferably, the connection between the pin block and the half wheel two is a plug-in connection, and a roller two is installed on the lower side of the half wheel one and the half wheel two, and two symmetrically distributed positioning shafts are installed inside the roller two, and the roller two is movably sleeved on the outer sides of the two positioning shafts, and the roller two is used to avoid contact and friction between the cable and the support plate, and the connection between the positioning shaft and the support seat one is a fixed connection, and two symmetrically distributed balls are movably embedded in the lower end of the support seat one, and the connection between the balls and the support plate is rolling contact.

[0009] Preferably, the driving assembly includes a shaft rod fixedly embedded in the center of a lower end of the support seat, and the shaft rod is movably connected to the support plate through a limiting straight groove, the shaft rod passes through the support plate through the limiting straight groove, an oblique rod is movably sleeved on the outer side of the shaft rod, and the oblique rod is located on the lower side of the support plate, an articulated seat is installed on the lower side of the support plate, and the end of the oblique rod away from the shaft rod is movably hinged to the articulated seat.

[0010] Preferably, an anti-drop block is fixedly installed on the upper end of the articulated seat, and the anti-drop block is movably connected to the support plate through a limiting straight groove 2, a spring is fixedly installed on the end of the articulated seat close to the hollow tube 2, and the end of the spring away from the articulated seat is fixedly connected to a fixed block, and the fixed block is fixedly connected to the support plate, a pull rope is fixedly embedded at the center of one end of the articulated seat close to the hollow tube 2, and the pull rope passes through the hollow tube 2 and the fixed block, and the distance between the articulated seat and the fixed block can be changed by the pull rope, and a roller three is rotatably installed at the inner part of the hollow tube 1 and the hollow tube 2 corresponding to the bending part of the pull rope.

[0011] Preferably, the winding assembly includes a pad fixedly connected to the hollow tube 1, and two symmetrically distributed support seats 2 are fixedly installed on the upper end of the pad, a winding drum is installed between the two support seats 2, and the pull rope is movably wound around the outer side of the winding drum, and the connection method between the winding drum and the support seat 2 is a rotating connection, a crank is fixedly installed at one end of the winding drum, and a positioning bolt is threadedly installed on the outer side of the support seat 2 away from the crank, and the connection method between the positioning bolt and the winding drum is a movable abutment, and the positioning bolt abuts against the winding drum to prevent the winding drum from rotating.

[0012] Preferably, the deceleration assembly includes a positioning seat fixedly mounted on the upper end of the pad, a baffle is rotatably mounted on the side of the positioning seat close to the winding drum, two symmetrically distributed coil springs are fixedly mounted on the outer side of the baffle rotating shaft, and the outer end of the coil spring is fixedly connected to the positioning seat, a limited rotation groove is provided inside the positioning seat corresponding to the baffle, a silicone strip is fixedly embedded on one end of the baffle close to the winding drum, a plurality of grooves equidistantly distributed around the circumference are provided on the outer side of the winding drum, and the silicone strip is in sliding contact with the winding drum through the plurality of grooves, and when the winding drum rotates clockwise to release the line, the silicone strip can slow down the rotation speed of the winding drum.

[0013] Preferably, a positioning component is installed inside the hollow tube one, and the positioning component includes a bidirectional screw rotatably connected to the hollow tube one, and the outer side thread of the bidirectional screw is sleeved with two symmetrically distributed connecting blocks, and two symmetrically distributed plug-in blocks are movably embedded on the side wall of the hollow tube one, and an oblique connecting rod is installed between the plug-in block and the connecting block, and the two ends of the oblique connecting rod are movably hinged to the connecting block and the plug-in block respectively, and a silicone block is fixedly embedded with one end of the two plug-in blocks away from each other, and a tooth plate is movably abutted on the side of the silicone block away from the plug-in block, and the tooth plate is fixedly installed on the inner wall of the hollow tube two, and the silicone block abuts the tooth plate, so as to position the hollow tube one and the hollow tube two.

[0014] Preferably, a mounting shaft is installed on the right side of the guide wheel, and the mounting shaft is connected to the mounting bracket in a rotatable manner through a second rotating shaft, a roller one is rotatably installed on the outer side of the mounting shaft, and the roller one is used to prevent the cable from falling off the guide wheel, a slot is provided on the mounting bracket, and the end of the mounting shaft away from the second rotating shaft is movably connected to the mounting bracket through the slot, and the outer side of the mounting shaft is movably abutted against two symmetrically distributed baffles, and a hemispherical portion is provided at one end of the baffle close to the mounting shaft, and the hemispherical portion of the baffle presses against the mounting shaft to prevent the mounting shaft from opening by itself, and a V-shaped spring clip is fixedly connected to the end of the baffle away from the mounting shaft, a sleeve is movably sleeved on the outer side of the V-shaped spring clip, and the end of the V-shaped spring clip away from the baffle is fixedly connected to the sleeve, and the connection between the sleeve and the mounting bracket is a fixed connection.

[0015] A cable installation method for a cable installation protection device:

[0016] S1: During the placement phase, the hollow tube 1, the hollow tube 2 and the limit assembly are placed inside the cable well, the pad is located at the upper end of the cable well opening, and a heavy object is pressed on the pad to position the device;

[0017] S2: In the unfolding stage, the two-way screw is rotated to bring the two connecting blocks closer to each other. The two connecting blocks drive the two plug-in blocks closer to each other through the oblique connecting rod, so that the silicone block is separated from the tooth plate. At this time, the hollow tube 2 moves downward and unfolds under the action of gravity;

[0018] S3: deceleration stage, during the downward movement and unfolding of the hollow tube 2, the winding drum is driven to rotate clockwise by the pull rope. During the clockwise rotation of the winding drum, the silicone strip slides in contact with the winding drum through multiple grooves, slowing down the pay-off speed of the winding drum, thereby slowing down the downward movement speed of the hollow tube 2 and the limit assembly;

[0019] S4: Conductor stage. After adjusting the position of hollow tube 2 and limit assembly inside the cable well, first pass the end of the cable through between the guide wheel and drum 1, and then pass the cable through between half wheel 1, half wheel 2 and drum 2. When the cable is pulled to move inside the cable well, the guide wheel, half wheel 1, half wheel 2 and drum 2 conduct the cable.

[0020] S5: Separation stage, when the hollow tube 1 and the hollow tube 2 are in a locked state, first rotate to open the drum 1, then rotate the reel to reel in the pull rope, the pull rope drives the articulated seat to move to the left, and the articulated seat will drive the two support seats 1 to move away from each other through two inclined rods during the movement to the left, so that the half wheel 1 and the half wheel 2 move away from each other, so that the cable is separated from the device.

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

[0022] 1. The present invention installs a guide wheel and a limit assembly. During the process of cable installation and laying in the cable well, the guide wheel, half wheel one, half wheel two and roller two conduct the cable, which can avoid the contact and friction between the cable skin and the cable well mouth and the side wall of the cable well during the cable laying process, thereby avoiding the wear of the cable skin caused by direct friction with the cable well during the cable laying process.

[0023] 2. The present invention installs a winding assembly and a deceleration assembly. The silicone strip in the deceleration assembly slides in contact with the winding drum through a plurality of grooves during the clockwise rotation of the winding drum, thereby effectively slowing down the unwinding speed of the winding drum. In this way, when unfolding hollow tube one and hollow tube two to place the limit assembly inside the cable well, it is possible to prevent hollow tube two and the limit assembly from directly hitting the ground of the cable well due to excessively fast descent speed and thus being deformed, thereby affecting the service life of the device.

[0024] 3. The present invention installs a driving component and reels the pull rope by rotating the reel in the reel assembly, thereby shortening the distance between the hinged seat and the fixed block in the driving component, thereby expanding the distance between half wheel one and half wheel two, so that after the cable is laid, the cable can be directly detached from half wheel one and half wheel two without the need for personnel to go down the well for operation, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the present invention;

[0026] Figure 2 It is a side sectional schematic diagram of the present invention;

[0027] Figure 3 This is a schematic diagram of the separation of the limit assembly, the drive assembly and the support plate of the present invention;

[0028] Figure 4 It is a side cross-sectional schematic diagram of the hollow tube 1 and the hollow tube 2 of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection between the winding drum and the deceleration assembly of the present invention;

[0030] Figure 6 It is a side cross-sectional schematic diagram of the deceleration assembly of the present invention;

[0031] Figure 7 This is a schematic diagram of the first rotary opening of the drum of the present invention;

[0032] Figure 8 For the present invention Figure 7 A magnified schematic diagram of center A.

[0033] In the figure: 1, mounting frame; 2, guide wheel; 3, mounting shaft; 4, roller 1; 5, slot; 6, hollow tube 1; 7, hollow tube 2; 8, limit block; 9, support plate; 10, support seat 1; 11, half wheel 1; 12, half wheel 2; 13, pin block; 14, roller 2; 15, positioning shaft; 16, ball bearing; 17, shaft rod; 18, inclined rod; 19, hinge seat; 20, anti-drop block; 21, spring; 22, fixing block ; 23. Pull rope; 24. Drum three; 25. Pad; 26. Winding drum; 27. Support seat two; 28. Crank; 29. ​​Positioning seat; 30. Baffle; 31. Coil spring; 32. Limiting groove; 33. Silicone strip; 34. Bidirectional screw; 35. Connecting block; 36. Plug-in block; 37. Oblique connecting rod; 38. Silicone block; 39. Tooth plate; 40. Baffle; 41. V-shaped spring; 42. Sleeve; 43. Positioning bolt. DETAILED DESCRIPTION

[0034] 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.

[0035] Example 1: Please refer to Figure 1-Figure 4 A cable installation and protection device shown in the figure includes a mounting frame 1, on which a guide wheel 2 is rotatably mounted, a hollow tube 6 is mounted on the left side of the mounting frame 1, and the connection between the hollow tube 6 and the mounting frame 1 is a fixed connection, and a hollow tube 7 is movably sleeved on the outer side of the hollow tube 6, and a plurality of limit blocks 8 are fixedly mounted on the outer side of the hollow tube 6, and the limit blocks 8 are slidably connected to the hollow tube 7 through a reserved movable groove, and also includes a limit assembly for limiting the direction of the cable, and the limit assembly is installed on the right side of the hollow tube 7; a driving assembly for driving the limit assembly to move, and the driving assembly is installed on the lower side of the limit assembly, and the driving assembly includes a pull rope 23; a winding assembly for winding and releasing the pull rope 23, and the winding assembly is installed on the left side of the hollow tube 6 and close to the upper end of the hollow tube 6; a deceleration assembly for slowing down the release speed of the winding assembly, and the deceleration assembly is installed on the outer side of the winding assembly, and the number of the deceleration assemblies is two groups, and they are symmetrically distributed.

[0036] A positioning assembly is installed inside the hollow tube 6, and the positioning assembly includes a bidirectional screw 34 rotatably connected to the hollow tube 6, and the outer side thread of the bidirectional screw 34 is sleeved with two symmetrically distributed connecting blocks 35, and two symmetrically distributed plug-in blocks 36 are movably embedded on the side wall of the hollow tube 6, and an oblique connecting rod 37 is installed between the plug-in block 36 and the connecting block 35, and the two ends of the oblique connecting rod 37 are movably hinged to the connecting block 35 and the plug-in block 36 respectively, and a silicone block 38 is fixedly embedded at one end of the two plug-in blocks 36 away from each other, and a tooth plate 39 is movably abutted on the side of the silicone block 38 away from the plug-in block 36, and the tooth plate 39 is fixedly installed on the inner wall of the hollow tube 2 7, and the silicone block 38 abuts the tooth plate 39, which can position the hollow tube 1 6 and the hollow tube 2 7.

[0037] A mounting shaft 3 is installed on the right side of the guide wheel 2, and the mounting shaft 3 is rotationally connected to the mounting frame 1 through a rotating shaft 2. A roller 4 is rotationally installed on the outer side of the mounting shaft 3, and the roller 4 is used to prevent the cable from escaping from the guide wheel 2.

[0038] A cable installation method for a cable installation protection device:

[0039] S1: during the placement phase, the hollow tube 1 6, the hollow tube 2 7 and the limit assembly are placed inside the cable well, the pad 25 is located at the upper end of the cable well opening, and a heavy object is pressed on the pad 25 to position the device;

[0040] S2: In the unfolding stage, the bidirectional screw 34 is rotated to bring the two connecting blocks 35 closer to each other. The two connecting blocks 35 drive the two plug-in blocks 36 closer to each other through the oblique connecting rod 37, so that the silicone block 38 is separated from the tooth plate 39. At this time, the hollow tube 7 moves downward under the action of gravity to unfold;

[0041] S3: deceleration stage, during the downward movement and unfolding of the hollow tube 27, the take-up drum 26 is driven to rotate clockwise by the pull rope 23. During the clockwise rotation of the take-up drum 26, the silicone strip 33 is in sliding contact with the take-up drum 26 through a plurality of grooves, slowing down the pay-off speed of the take-up drum 26, thereby slowing down the downward movement speed of the hollow tube 27 and the limit assembly;

[0042] S4: Conductor stage. After adjusting the position of the hollow tube 2 7 and the limit assembly inside the cable well, first pass the end of the cable through the guide wheel 2 and the drum 1 4, and then pass the cable through the half wheel 1 11, the half wheel 2 12 and the drum 2 14. When the cable is pulled to move inside the cable well, the guide wheel 2, the half wheel 1 11, the half wheel 2 12 and the drum 2 14 conduct the cable.

[0043] S5: Separation stage, when the hollow tube 1 6 and the hollow tube 2 7 are in a locked state, first rotate and open the drum 1 4, then rotate the reel 26 to reel the pull rope 23, the pull rope 23 drives the hinge seat 19 to move leftward, and the hinge seat 19 drives the two support seats 10 to move away from each other through the two inclined rods 18 during the movement to the left, so that the half wheel 1 11 and the half wheel 2 12 move away from each other, so that the cable is separated from the device;

[0044] Working principle: When in use, the personnel place the device at the wellhead of the cable well, the hollow tube 1 6 and the hollow tube 2 7 are located inside the cable well, the pad 25 is located at the upper end of the wellhead of the cable well, the personnel press a heavy object on the pad 25, and then rotate the bidirectional screw 34 to move the two connecting blocks 35 away from each other. In this process, the two connecting blocks 35 will drive the two plug-in blocks 36 to move closer to each other through the four oblique connecting rods 37, so that the silicone block 38 is separated from the tooth plate 39. At this time, the hollow tube 2 7 and the limit assembly are automatically closed under the action of gravity. Move down and enter the cable well. When the limit assembly moves to the bottom of the cable well, the personnel first pass the end of the cable through the guide wheel 2 and the drum 1 4, and then pass the cable through the half wheel 1 11, the half wheel 2 12 and the drum 2 14. After that, in the process of pulling the cable through the traction equipment, the guide wheel 2, the half wheel 1 11, the half wheel 2 12 and the drum 2 14 conduct the cable, which can prevent the cable from contacting and rubbing with the cable well mouth and the side wall of the cable well in the process of pulling the cable, causing the cable skin to be worn;

[0045] When the limit assembly moves down to the corresponding position in the cable well, the personnel rotates the bidirectional screw 34 to move the two plug-in blocks 36 away from each other, so that the silicone block 38 abuts against the tooth plate 39, thereby positioning the hollow tube 1 6 and the hollow tube 2 7.

[0046] Example 2: Please refer to Figure 5 , Figure 6 The present embodiment further explains Example 1, the winding assembly includes a pad 25 fixedly connected to the hollow tube 6, two symmetrically distributed support seats 27 are fixedly installed on the upper end of the pad 25, a winding drum 26 is installed between the two support seats 27, and the pull rope 23 is movably wound around the outside of the winding drum 26, and the connection between the winding drum 26 and the support seat 27 is a rotating connection, a crank 28 is fixedly installed at one end of the winding drum 26, and a positioning bolt 43 is threadedly installed on the outer side of a support seat 27 away from the crank 28, and the connection between the positioning bolt 43 and the winding drum 26 is a movable abutment, the positioning bolt 43 abuts against the winding drum 26, and can prevent the winding drum 26 from rotating.

[0047] The deceleration assembly includes a positioning seat 29 fixedly mounted on the upper end of the pad 25, and a baffle 30 is rotatably mounted on one side of the positioning seat 29 close to the winding drum 26. Two symmetrically distributed coil springs 31 are fixedly mounted on the outer side of the baffle 30 rotating shaft, and the outer end of the coil spring 31 is fixedly connected to the positioning seat 29. A limited rotation groove 32 is provided inside the positioning seat 29 corresponding to the baffle 30, and a silicone strip 33 is fixedly embedded on one end of the baffle 30 close to the winding drum 26. A plurality of grooves equidistantly distributed around the circumference are provided on the outer side of the winding drum 26, and the silicone strip 33 is in sliding contact with the winding drum 26 through the plurality of grooves. When the winding drum 26 rotates clockwise to release the line, the silicone strip 33 can slow down the rotation speed of the winding drum 26.

[0048] In this embodiment: when the silicone block 38 is separated from the tooth plate 39 and the limit assembly moves down to the bottom of the cable well under the action of gravity, the pull rope 23 pulls the winding drum 26 to rotate clockwise. During the clockwise rotation of the winding drum 26, the baffle 30 cannot rotate counterclockwise due to the obstruction of the limit rotation groove 32. During the clockwise rotation of the winding drum 26 to release the line, the silicone strip 33 will rotate against the silicone strip 33. The silicone strip 33 slides in contact with the winding drum 26 through multiple grooves, so that there is resistance during the clockwise rotation of the winding drum 26 to release the line, so the rotation speed of the winding drum 26 can be effectively slowed down, thereby preventing the limit assembly from being deformed due to direct impact on the ground of the cable well due to excessive descent speed, which affects the service life of the device.

[0049] Since the baffle 30 can rotate clockwise inside the positioning seat 29 , the silicone strip 33 will not affect the counterclockwise rotation of the winding drum 26 during the counterclockwise rotation of the winding drum 26 .

[0050] Example 3: Please refer to Figure 2 , Figure 3 , Figure 7 , Figure 8 This embodiment further explains Example 1. The limiting assembly includes a support plate 9 fixedly installed on the right side of the hollow tube 2 7, and the support plate 9 is close to the lower end of the hollow tube 2 7. Two symmetrically distributed support seats 10 are fixedly installed on the upper end of the support plate 9. A half wheel 11 and a half wheel 2 12 are installed between the two support seats 10, and the half wheel 11 and the half wheel 2 12 are rotatably connected to the two support seats 10 respectively. A pin block 13 is fixedly installed on the side of the half wheel 11 close to the half wheel 2 12, and the pin block 13 is used to enhance the connection strength between the half wheel 11 and the half wheel 2 12.

[0051] The connection between the pin block 13 and the half wheel 12 is a plug-in connection. A roller 14 is installed on the lower side of the half wheel 11 and the half wheel 12. Two symmetrically distributed positioning shafts 15 are installed inside the roller 14, and the roller 14 is movably sleeved on the outer sides of the two positioning shafts 15. The roller 14 is used to avoid contact and friction between the cable and the support plate 9. The connection between the positioning shaft 15 and the support seat 10 is a fixed connection. Two symmetrically distributed balls 16 are movably embedded in the lower end of the support seat 10, and the connection between the balls 16 and the support plate 9 is rolling contact.

[0052] The driving assembly includes a shaft rod 17 fixedly embedded in the center of the lower end of the support seat 10, and the shaft rod 17 is movably connected to the support plate 9 through a limiting straight groove. The shaft rod 17 passes through the support plate 9 through the limiting straight groove. An inclined rod 18 is movably sleeved on the outer side of the shaft rod 17, and the inclined rod 18 is located on the lower side of the support plate 9. A hinge seat 19 is installed on the lower side of the support plate 9, and one end of the inclined rod 18 away from the shaft rod 17 is movably hinged to the hinge seat 19.

[0053] An anti-slip block 20 is fixedly installed on the upper end of the articulated seat 19, and the anti-slip block 20 is movably connected to the support plate 9 through a limiting straight groove 2, a spring 21 is fixedly installed on the end of the articulated seat 19 close to the hollow tube 27, and a fixed block 22 is fixedly connected to the end of the spring 21 away from the articulated seat 19, and the fixed block 22 is fixedly connected to the support plate 9, a pull rope 23 is fixedly embedded at the center of one end of the articulated seat 19 close to the hollow tube 27, and the pull rope 23 runs through the hollow tube 27 and the fixed block 22, and the distance between the articulated seat 19 and the fixed block 22 can be changed by the pull rope 23, and a roller three 24 is rotatably installed at the bending part of the hollow tube 1 6 and the hollow tube 27 corresponding to the pull rope 23.

[0054] A slot 5 is provided on the mounting frame 1, and the end of the mounting shaft 3 away from the rotating shaft 2 is movably connected to the mounting frame 1 through the slot 5, and the outer side of the mounting shaft 3 is movably abutted with two symmetrically distributed blocking rods 40, and the end of the blocking rod 40 close to the mounting shaft 3 is provided with a hemispherical portion, and the hemispherical portion of the blocking rod 40 abuts against the mounting shaft 3, which can prevent the mounting shaft 3 from opening by itself, and the end of the blocking rod 40 away from the mounting shaft 3 is fixedly connected with a V-shaped spring clip 41, and the outer side of the V-shaped spring clip 41 is movably sleeved with a sleeve 42, and the end of the V-shaped spring clip 41 away from the blocking rod 40 is fixedly connected to the sleeve 42, and the connection method between the sleeve 42 and the mounting frame 1 is a fixed connection.

[0055] In this embodiment: when the cable laying is completed and the cable protection device needs to be removed, the personnel first rotate the drum 14 to open it, so that the cable is separated from the guide wheel 2 and the drum 14, and then the personnel rotate the winding drum 26 counterclockwise. Since the hollow tube 16 and the hollow tube 27 are locked at this time, the winding drum 26 will drive the articulated seat 19 to move to the left through the pull rope 23 during the counterclockwise rotation. The articulated seat 19 will drive the two support seats 10 away from each other through the two inclined rods 18 during the left movement, so that the half wheel 11 and the half wheel 2 12 are separated. At this time, the cable can be directly moved out through the gap between the half wheel 11 and the half wheel 2 12, without the need for personnel to go down the well for operation, which is more convenient to use;

[0056] When the cable is detached from the cable installation protection device, the personnel rotates the bidirectional screw 34, and the silicone block 38 detaches from the tooth plate 39. Then the personnel rotates the reel 26 counterclockwise to reel in the pull rope 23. At this time, under the action of the pull rope 23, the hollow tube 2 7 will move up on the outside of the hollow tube 1 6, so that the hollow tube 1 6 and the hollow tube 2 7 are folded, thereby facilitating the removal of the cable installation protection device from the cable well.

[0057] 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.

[0058] 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 cable installation protection device, comprising a mounting frame, a guide wheel is rotatably mounted on the mounting frame, a hollow tube 1 is mounted on the left side of the mounting frame, and the connection between the hollow tube 1 and the mounting frame is a fixed connection, a hollow tube 2 is movably sleeved on the outer side of the hollow tube 1, a plurality of limit blocks are fixedly mounted on the outer side of the hollow tube 1, and the limit blocks are slidably connected to the hollow tube 2 through a reserved movable groove, characterized in that: Also includes: The limit assembly is used to limit the direction of the cable. The limit assembly is installed on the right side of the second hollow tube; A driving assembly, used for driving the limiting assembly to move, the driving assembly is installed at the lower side of the limiting assembly, and the driving assembly includes a pull rope; A reeling assembly is used to reel in and release the draw rope, and the reeling assembly is installed on the left side of the hollow tube 1 and close to the upper end of the hollow tube 1; The deceleration assembly is used to slow down the unwinding speed of the winding assembly. The deceleration assembly is installed on the outside of the winding assembly. There are two groups of deceleration assemblies, which are symmetrically distributed. The limiting assembly includes a support plate fixedly mounted on the right side of the hollow tube 2, and the support plate is close to the lower end of the hollow tube 2, and two symmetrically distributed support seats 1 are fixedly mounted on the upper end of the support plate, and a half wheel 1 and a half wheel 2 are mounted between the two support seats 1, and the half wheel 1 and the half wheel 2 are respectively rotatably connected to the two support seats 1, and a pin block is fixedly mounted on one side of the half wheel 1 close to the half wheel 2; The driving assembly includes a shaft rod fixedly embedded in the center of a lower end of the support seat, and the shaft rod is movably connected to the support plate through a limiting straight groove, an oblique tie rod is movably sleeved on the outer side of the shaft rod, and the oblique tie rod is located on the lower side of the support plate, a hinge seat is installed on the lower side of the support plate, and one end of the oblique tie rod away from the shaft rod is movably hinged to the hinge seat; An anti-drop block is fixedly installed on the upper end of the hinged seat, and the anti-drop block is movably connected to the support plate through a limiting straight groove two, a spring is fixedly installed on the end of the hinged seat close to the hollow tube two, and a fixed block is fixedly connected to the end of the spring away from the hinged seat, and the fixed block is fixedly connected to the support plate, a pull rope is fixedly embedded at the center of one end of the hinged seat close to the hollow tube two, and the pull rope passes through the hollow tube two and the fixed block, and rollers three are rotatably installed at the bending parts of the hollow tubes one and two corresponding to the pull ropes.

2. A cable installation protection device according to claim 1, characterized in that: The connection between the pin block and the half wheel two is a plug-in connection, and the lower sides of the half wheels one and two are installed with roller two, and two symmetrically distributed positioning shafts are installed inside the roller two, and the roller two is movably sleeved on the outer sides of the two positioning shafts, and the connection between the positioning shaft and the support seat one is a fixed connection, and the lower end of the support seat one is movably embedded with two symmetrically distributed balls, and the connection between the balls and the support plate is rolling contact.

3. A cable installation protection device according to claim 2, characterized in that: The winding assembly includes a pad fixedly connected to a hollow tube, and two symmetrically distributed support seats are fixedly installed on the upper end of the pad. A winding drum is installed between the two support seats, and a pull rope is movably wound around the outer side of the winding drum, and the connection method between the winding drum and the support seat is a rotating connection. A crank is fixedly installed at one end of the winding drum, and a positioning bolt is threadedly installed on the outer side of a support seat away from the crank, and the connection method between the positioning bolt and the winding drum is a movable abutment.

4. A cable installation protection device according to claim 3, characterized in that: The deceleration assembly includes a positioning seat fixedly installed on the upper end of the pad, a baffle is rotatably installed on the side of the positioning seat close to the winding drum, two symmetrically distributed coil springs are fixedly installed on the outer side of the baffle rotating shaft, and the outer end of the coil spring is fixedly connected to the positioning seat, a limited rotation groove is provided inside the positioning seat corresponding to the baffle, a silicone strip is fixedly embedded on the end of the baffle close to the winding drum, a plurality of grooves equidistantly distributed around the circumference are provided on the outer side of the winding drum, and the silicone strip is in sliding contact with the winding drum through the plurality of grooves.

5. A cable installation protection device according to claim 4, characterized in that: A positioning assembly is installed inside the hollow tube one, and the positioning assembly includes a bidirectional screw rotatably connected to the hollow tube one, and the outer thread of the bidirectional screw is sleeved with two symmetrically distributed connecting blocks, and two symmetrically distributed plug-in blocks are movably embedded on the side wall of the hollow tube one, and an oblique connecting rod is installed between the plug-in block and the connecting block, and the two ends of the oblique connecting rod are movably hinged to the connecting block and the plug-in block respectively, and a silicone block is fixedly embedded at one end of the two plug-in blocks away from each other, and a tooth plate is movably abutted on the side of the silicone block away from the plug-in block, and the tooth plate is fixedly installed on the inner wall of the hollow tube two.

6. A cable installation protection device according to claim 5, characterized in that: A mounting shaft is installed on the right side of the guide wheel, and the mounting shaft is connected to the mounting frame in a rotational connection through the rotating shaft two. A roller one is rotatably installed on the outer side of the mounting shaft. A slot is provided on the mounting frame, and the end of the mounting shaft away from the rotating shaft two is movably connected to the mounting frame through the slot. Two symmetrically distributed baffles are movably abutted on the outer side of the mounting shaft. A hemispherical portion is provided on the end of the baffle close to the mounting shaft, and a V-shaped spring clip is fixedly connected to the end of the baffle away from the mounting shaft. A sleeve is movably sleeved on the outer side of the V-shaped spring clip, and the end of the V-shaped spring clip away from the baffle is fixedly connected to the sleeve, and the connection between the sleeve and the mounting frame is a fixed connection.

7. A cable installation method based on the cable installation protection device according to claim 6, characterized in that: S1: During the placement phase, the hollow tube 1, the hollow tube 2 and the limit assembly are placed inside the cable well, the pad is located at the upper end of the cable well opening, and a heavy object is pressed on the pad to position the device; S2: In the unfolding stage, the two-way screw is rotated to bring the two connecting blocks closer to each other. The two connecting blocks drive the two plug-in blocks closer to each other through the oblique connecting rod, so that the silicone block is separated from the tooth plate. At this time, the hollow tube 2 moves downward and unfolds under the action of gravity; S3: deceleration stage, during the downward movement and unfolding of the hollow tube 2, the winding drum is driven to rotate clockwise by the pull rope. During the clockwise rotation of the winding drum, the silicone strip slides in contact with the winding drum through multiple grooves, slowing down the pay-off speed of the winding drum, thereby slowing down the downward movement speed of the hollow tube 2 and the limit assembly; S4: Conductor stage. After adjusting the position of hollow tube 2 and limit assembly inside the cable well, first pass the end of the cable through between the guide wheel and drum 1, and then pass the cable through between half wheel 1, half wheel 2 and drum 2. When the cable is pulled to move inside the cable well, the guide wheel, half wheel 1, half wheel 2 and drum 2 conduct the cable. S5: Separation stage, when the hollow tube 1 and the hollow tube 2 are in a locked state, first rotate to open the drum 1, then rotate the reel to reel in the pull rope, the pull rope drives the articulated seat to move to the left, and the articulated seat will drive the two support seats 1 to move away from each other through two inclined rods during the movement to the left, so that the half wheel 1 and the half wheel 2 move away from each other, so that the cable is separated from the device.

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