A rotation-unlocking recyclable prestressed anchor cable and a construction process thereof

Abstract

The application belongs to the technical field of anchor cable and specifically discloses a rotatable unlocking type recyclable prestressed anchor cable and a construction process thereof. The rotatable unlocking type recyclable prestressed anchor cable mainly comprises steel strands, PE plastic pipes, a bearing body, a taper clamp, a flat head screw, a supporting sleeve, a limiting plate, a screw sleeve and a protective shell. The bearing body is provided with a plurality of through holes for the steel strands to pass through. The PE plastic pipes and the bearing body are connected through thread engagement. The limiting plate is fixed at a distance from the bearing body through the supporting sleeve and the flat head screw. The screw sleeve is used for moving up and down through the rotation of the steel strands. The taper clamp is installed in the bearing body and moves up and down through the rotation of the steel strands. The construction process of the rotatable unlocking type recyclable prestressed anchor cable is also provided. The application has the advantages of simple structure, convenient installation on the construction site, simultaneous recycling of a plurality of steel strands, great economy, operability and environmental protection.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anchor cables, and particularly relates to a rotatable unlocking type recyclable prestressed anchor cable and a construction process thereof. BACKGROUND

[0002] In recent years, compared with other supporting structures such as a diaphragm wall and a reinforced concrete internal support, a pile-anchor supporting structure can reduce the cost and save the construction period, and has high safety and stability, so that the anchor cable supporting structure has been widely applied in foundation pit engineering. With the large use of the anchor cable, many problems such as exceeding the red line, being not environmentally friendly, wasting resources and affecting the development of underground space and the construction of urban metro shield tunnels have appeared, in order to solve these problems, a recyclable pull-anchor supporting structure needs to be used.

[0003] At present, various recyclable prestressed anchor cables are applied in China, the recycling principles are different, and most of the recyclable prestressed anchor cable structures are complex, so that the recyclable prestressed anchor cable needs to be pre-assembled in a factory and then transported to a construction site for construction, and in the recycling operation, some recyclable prestressed anchor cables consume large manpower and material resources. Therefore, it is necessary to design a recyclable prestressed anchor cable which can be flexibly assembled at a construction site and has simple and feasible recycling operation, so as to solve the problems existing in the prior art. SUMMARY

[0004] In view of the above problems, the application provides a rotatable unlocking type recyclable prestressed anchor cable and a construction process thereof, which effectively solve the problems in the background.

[0005] To achieve the above object, the application provides the following technical scheme: a rotatable unlocking type recyclable prestressed anchor cable, comprising a steel strand, a PE plastic pipe, a bearing body, a taper clamp, a flat head screw, a support sleeve, a limiting plate, a screw sleeve and a protective shell, the protective shell and the bearing body are connected through a connecting stabilizing assembly, and the connecting stabilizing assembly is used for stabilizing when the protective shell is installed.

[0006] A plurality of steel strands are connected to the bearing body in a penetrating manner, and the bearing body and the PE plastic pipe are connected in a threaded manner; the limiting plate and the bearing body are connected through the support sleeve and the flat head screw, the flat head screw penetrates the support sleeve and is used for adjusting the distance between the limiting plate and the bearing body.

[0007] The taper clamp is installed in the bearing body, and the taper clamp and the screw sleeve are moved up and down through the rotating steel strand.

[0008] Preferably, the number of openings in the carrier depends on the number of steel strands per bundle; the carrier is provided with an upper hole opening and a lower hole opening, the thread hole diameter in the upper hole opening is the same as the outer diameter of the PE plastic pipe; the size and taper of the lower hole opening are the same as the size and taper of the clamp; the bottom of the carrier is provided with a plurality of bearing small holes, the bearing small holes are provided with a thread hole, the size of the thread hole is the same as the size of the flat head screw, the flat head screw is connected to the carrier through a thread connection, and is used to fix the position of the limiting plate.

[0009] Preferably, the taper clamp is provided with three parts, and is provided with a clamping groove inside, and a supporting spring is placed in the clamping groove; the carrier and the protective shell are connected through a thread connection, the outer diameter of the protective shell is the same as the outer diameter of the carrier, and the inner diameter of the protective shell is greater than the outer diameter of the limiting plate.

[0010] Preferably, the limiting plate is provided with a limiting large hole and a limiting small hole, the limiting small hole is connected with the flat head screw in a penetrating manner; the limiting large hole is provided with a thread hole, the size of the thread hole is matched with the size of the screw sleeve, and the number of the limiting large holes is equal to the number of the steel strands; the positions of the limiting small hole and the limiting large hole are consistent with the positions of the bearing small hole and the lower hole opening on the carrier.

[0011] Preferably, the screw sleeve is hollow, the bottom is sealed, the screw sleeve is provided with a small screw hole and a large screw hole, the small screw hole is the same as the outer diameter of the steel strand, and the rotating steel strand can drive the screw sleeve to rotate; the large screw hole is larger than the outer diameter of the taper clamp, and the screw sleeve limits the movement of the taper clamp.

[0012] Preferably, the connecting and stabilizing assembly comprises a special-shaped L rod symmetrically arranged on the inner side wall of the protective shell, a guide plate is symmetrically installed on the special-shaped L rod, the guide plate is connected with a guide rod in a sliding manner, a plurality of guide rods are connected with a linkage clamp seat, a linkage rotating rod is installed on the linkage clamp seat, and a linkage rotating wheel is arranged on the linkage rotating rod; the linkage rotating wheel is connected with a touch buffer plate through an open slot provided in the carrier, and the touch buffer plate is connected with a combined limiting unit; a guide spring is sleeved on the guide rod, one end of the guide spring is fixedly connected with the guide plate, and the other end is fixedly connected with the linkage clamp seat.

[0013] Preferably, the combined limiting unit includes a touch ring connected to the touch slow plate, and a plurality of touch rods are installed on the touch ring, and the touch rods are slidingly connected to the touch grooves provided on the open slots; a touch spring is sleeved on the touch rod, one end of the touch spring is fixedly connected to the open slot, and the other end is fixedly connected to the touch ring, the touch ring is cooperatively connected to the inclined plate, and a positioning rod is installed on the inclined plate, the positioning rod passes through the carrier and is fixedly connected to the positioning circular plate, and a joint sealing mechanism is provided on the positioning circular plate; a positioning spring is sleeved on the positioning rod, one end of the positioning spring is fixedly connected to the positioning circular plate, and the other end is fixedly connected to the outer wall of the carrier.

[0014] Preferably, the joint sealing mechanism includes a special-shaped long rod arranged on the positioning circular plate, the special-shaped long rod is fixedly connected to the semi-ring joint plate, the semi-ring joint plate is provided with a buffer pad, and several buffer pads are connected to the connection between the carrier and the protective shell.

[0015] Preferably, the following installation steps are included:

[0016] Step 1: Place the bottom of the hole upwards and install the taper fixture into the bottom of the hole;

[0017] Step 2: Connect the screw sleeve on the limited large aperture through thread engagement;

[0018] Step 3: Align the two ends of the support sleeve with the bearing hole and the limiting small hole diameter, align the major diameter of the screw hole with the bottom of the hole, pass the flat head screw through the limiting plate, the screw hole minor diameter and the support sleeve, and connect it to the bearing body through the bearing hole thread;

[0019] Step 4: Connect the protective shell and the carrier through threads;

[0020] Step 5: Place the hole with the upper opening facing upwards and connect each PE plastic pipe to the carrier with threads;

[0021] Step 6. Pass each steel strand through the carrier, the taper clamp, the limit plate until it reaches the bottom of the sleeve. Rotate each steel strand counterclockwise. Driven by the rotation of the steel strand, the sleeve moves on the limit plate toward the carrier. The sleeve pushes the taper clamp toward the carrier. When the steel strand rotates until it cannot rotate, the taper clamp is close to the steel strand, and the locking of the steel strand is completed.

[0022] The present invention also provides a construction process for a rotary unlocking recyclable prestressed anchor cable, comprising the following steps:

[0023] Step one, the tensioning and locking of the steel strand, sequentially pass each steel strand through the carrier, the taper clamp and the limiting plate until the bottom of the screw sleeve, rotate the steel strand counterclockwise until it cannot be rotated, so that the taper clamp tightly adheres to the steel strand, and the tensioning operation can be performed;

[0024] Step two, the unlocking and recovery of the steel strand, when performing the recovery operation, first release the external working anchor, then sequentially rotate each steel strand clockwise until it cannot be rotated, and finally manually pull out the steel strand to complete the recovery.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] (1) The steel strand can be recovered by external rotation and manual pulling. The structure of the present application is simple in design, and the recovery steps are convenient and rapid, and the possibility of problems occurring during tensioning is low. The recovery rate of the steel strand is high, and the recovered steel strand can be reused and can be stably used in subsequent support structures, thereby fully retaining the value of the steel strand;

[0027] (2) The structure of the present application is cleverly designed, and the installation is quick and convenient, which makes it can be stably used in future support structures, while also ensuring that the recovery value of the steel strand is maximized;

[0028] (3) The present application can be flexibly assembled and recovered on the construction site, thereby improving the construction efficiency, while also reducing resource waste, which is beneficial to environmental protection;

[0029] (4) When the protective shell needs to be installed on the carrier, since the carrier and the protective shell are threadedly connected, the protective shell rotates on the carrier and gradually descends, and before installation, the two linkage clamping seats in the protective shell pass through the open slot, so that the linkage rotating wheel is in contact with the surface of the touch buffer plate, thereby playing a positioning role for the protective shell during installation, thereby avoiding misalignment during installation, improving the installation efficiency, and through the touch buffer plate, the impact force when the protective shell contacts the carrier is reduced, thereby avoiding damage to the device, improving the stability during installation and the service life of the device;

[0030] (5) Due to the gradual descent of the protective shell, the trigger ring is limited in the trigger groove by the trigger rod, so that the trigger spring is in a buffer state. When the trigger ring drops to a certain position in the open slot, the inclined surface below the trigger ring contacts the inclined surface on the inclined surface plate, and then it is limited in the carrier body by the positioning rod, so that the positioning spring is in a buffer state. When the trigger ring passes through the inclined surface plate, the positioning spring is reset to drive the inclined surface plate to reset and move, so that it appears above the trigger ring. When the linkage wheel on the connecting stabilizing assembly passes through the inclined surface plate, it is limited by it. The cam is in a position where it cannot move further, thereby limiting the protective housing at its current height and preventing it from rotating further, thereby preventing the protective housing from being damaged when it cannot be installed or continues to rotate when it has been rotated to its maximum position, thereby improving the service life of the device and protecting the protective housing and the carrier, so that the device can be used normally. At the same time, a series of locking structures such as a locking motor can be provided in the inclined plate, and when it contacts the linkage rotating wheel, the linkage clamp seat can be limited to the current position, thereby preventing the protective housing from being released due to non-human factors.

[0031] (6) When the positioning circular plate moves outward, it also drives the special-shaped long rod to move outward, so that several semi-ring connecting plates are away from the carrier. When the inclined special-shaped plate is reset and moves above the touch ring, it also causes several special-shaped long rods to reset and drive the semi-ring connecting plates to reset, so that the buffer pad is reset and moves, and is connected to the connection between the carrier and the protective shell to avoid the gap between the two being too large, thereby reducing the use effect of the protective shell. Through the above description, the use effect of the protective shell is improved, and the sealing effect is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0033] In the attached figure:

[0034] Figure 1 This is one of the overall structural diagrams of the present invention;

[0035] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0036] Figure 3 This is one of the dual views of the carrier structure provided by the present invention;

[0037] Figure 4 This is the second of the dual views of the carrier structure provided by the present invention;

[0038] Figure 5Is the taper clamp structure double view provided by the application;

[0039] Figure 6 Is the support sleeve structure schematic diagram provided by the application;

[0040] Figure 7 Is one of the limit plate structure double views provided by the application;

[0041] Figure 8 Is the second limit plate structure double view provided by the application;

[0042] Figure 9 Is the screw sleeve structure three views provided by the application;

[0043] Figure 10 Is the protective shell double view provided by the application;

[0044] Figure 11 Is the positioning circular plate structure schematic diagram provided by the application;

[0045] Figure 12 Is the open notch structure schematic diagram provided by the application;

[0046] Figure 13 Is the inclined plane different plate structure schematic diagram provided by the application;

[0047] Figure 14 Is the special-shaped L rod structure schematic diagram provided by the application;

[0048] Figure 15 Is the touch groove structure schematic diagram provided by the application;

[0049] Figure 16 Is the buffer shielding pad structure schematic diagram provided by the application;

[0050] In the figure: 1, steel strand; 2, PE plastic pipe; 3, bearing body; 301, hole upper opening; 302, hole lower opening; 303, bearing small hole; 4, taper clamp; 401, clamping groove; 5, flat head screw; 6, support sleeve; 7, limit plate; 701, limit large hole diameter; 702, limit small hole diameter; 8, screw sleeve; 801, screw hole large diameter; 802, screw hole small diameter; 9, protective shell; 901, special-shaped L rod; 902, guide plate; 903, guide rod; 904, linkage clamp seat; 905, linkage rotating rod; 906, linkage rotating wheel; 907, open notch; 908, touch buffer plate; 909, guide spring; 910, touch ring; 911, touch rod; 912, touch groove; 913, touch spring; 914, inclined plane different plate; 915, positioning rod; 916, positioning circular plate; 917, positioning spring; 918, special-shaped long rod; 919, half-ring linkage plate; 920, buffer shielding pad. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] Example, by Figures 1 to 16 A rotary unlocking recyclable prestressed anchor cable overall structure is provided, wherein the accompanying drawings Figure 1 、 2 , 3, 4, 7 and 8 represent a three-anchor-hole rotary unlocking type recyclable prestressed anchor cable and a four-anchor-hole rotary unlocking type recyclable prestressed anchor cable. The three-anchor-hole and four-anchor-hole rotary unlocking type recyclable prestressed anchor cable structures are only used as structural examples. The number of anchor holes depends on the number of steel strands 1. All steel strands are single 7-wire steel strands, and the nominal diameter of the steel strands can be 15.2mm and 18.6mm. At the same time, the carrier 3 can provide anchoring force for multiple steel strands 1. The number of openings in the carrier 3 is the same as the number of steel strands 1. The outer diameter of the carrier 3 can be adjusted according to the number of steel strands 1.

[0053] In this embodiment, the components of the overall structure include:

[0054] The steel strand 1 is covered with a PE plastic tube 2, and the PE plastic tube 2 and the carrier 3 are connected by threaded engagement. The carrier 3 can allow multiple steel strands 1 to pass through. A tapered clamp 4 is installed in the carrier 3, and the tapered clamp 4 is moved up and down by rotating the steel strand. The distance and fixed position between the carrier 3 and the limit plate 7 are limited by the support sleeve 6 and the flat head screw 5. A screw sleeve 8 is installed on the limit plate 7, and the screw sleeve 8 is moved up and down by rotating the steel strand 1. The protective shell 9 is connected to the carrier 3 by threaded engagement.

[0055] The support sleeve 6 can allow the flat head screws 5 to pass through, and the number is the same as the number of flat head screws 5, and is used to control the distance between the limit plate 7 and the carrier 3;

[0056] The flat head screws 5 are common screws, and there are 3 to 4 of them. The flat head screws 5 and the carrier 3 are connected by thread engagement, and are used to fix the limiting plate 7 .

[0057] In this embodiment, the present invention can be flexibly assembled and recycled at the construction site, thereby improving construction efficiency, while also reducing resource waste and being beneficial to environmental protection.

[0058] In this embodiment, a procedure for installing a rotationally unlocked recyclable prestressed anchor cable is provided;

[0059] Step one, place the hole lower mouth 302 upwards, and install the taper clamp 4 into the hole lower mouth 302;

[0060] Step two, connect the screw sleeve 8 on the limiting large hole diameter 701 through thread engagement;

[0061] Step three, align the two ends of the support sleeve 6 with the bearing small hole 303 and the limiting small hole diameter 702, align the screw hole large diameter 801 with the hole lower mouth 302, pass the flat head screw 5 through the limiting plate 7, the screw hole small diameter 802 and the support sleeve 6, and set through the bearing small hole 303 and the bearing body 3 by thread connection;

[0062] Step four, set the protective shell 9 with the bearing body 3 by thread connection;

[0063] Step five, place the hole upper mouth 301 upwards, and set each PE plastic pipe 2 with the bearing body 3 by thread connection;

[0064] Step six, pass each steel strand 1 through the bearing body 3, the taper clamp 4, the limiting plate 7 and the bottom of the screw sleeve 8 in sequence, rotate each steel strand 1 counterclockwise in sequence, drive the screw sleeve 8 to move on the limiting plate 7 towards the bearing body 3 under the rotation of the steel strand 1, drive the taper clamp 4 to move towards the bearing body 3 under the pushing of the screw sleeve 8, and when the steel strand 1 cannot be rotated, the taper clamp 4 is tightly attached to the steel strand 1, that is, the locking of the steel strand 1 is completed.

[0065] In the embodiment, in the first step of the application, a clamping groove 401 is arranged inside for placing a supporting spring, so that the taper clamp 4 can be expanded when being unlocked, and the taper clamp 4 can be kept away from the steel strand 1 when being recovered, thereby facilitating the pulling out of the steel strand 1.

[0066] In the embodiment, in the second step of the application, the screw sleeve 8 is hollow, the bottom is sealed, the screw hole small diameter 802 on the screw sleeve 8 is the same as the outer diameter of the steel strand 1, the screw hole large diameter 801 is slightly larger than the outer diameter of the taper clamp 4, and the screw hole large diameter 801 can constrain the movement path of the taper clamp 4.

[0067] In the embodiment, in the third step of the application, the length of the support sleeve 6 is the distance from the bearing body 3 to the limiting plate 7.

[0068] In the embodiment, in the sixth step of the application, while the taper clamp 4 moves towards the bearing body, the three petals of the taper clamp 4 are closed, and gradually tightly attach to the steel strand 1.

[0069] In the embodiment, the application has a clever structure design, and can be installed quickly and conveniently, which can be stably used in future supporting structures, and can also maximize the recycling value of the steel strand 1.

[0070] The application further provides a construction process of the rotatable unlocking recyclable prestressed anchor cable.

[0071] Step one, tensioning and locking the steel strand 1, each steel strand 1 is sequentially threaded through the carrier 3, the taper clamp 4 and the limiting plate 7 until the bottom of the screw sleeve 8, the steel strand 1 is counterclockwise rotated until it cannot be rotated, and the taper clamp 4 is tightly attached to the steel strand 1, so that the tensioning operation can be performed;

[0072] Step two, unlocking and recycling the steel strand 1, when the recycling operation is performed, the external working anchor is first released, then each steel strand 1 is sequentially clockwise rotated until it cannot be rotated, and finally the steel strand 1 is manually pulled out to complete the recycling.

[0073] In the first step of the present embodiment, each steel strand 1 is counterclockwise rotated, so that the screw sleeve 8 is driven by the rotation of the steel strand 1 to move on the limiting plate 7 towards the carrier 3, the screw sleeve 8 pushes the taper clamp 4 to move towards the carrier 3, at the same time, the hole lower opening 302 applies a relative extrusion force to the three sides of the taper clamp 4, the extrusion force makes the taper clamp 4 fold and gradually lock the steel strand 1;

[0074] In the second step of the present embodiment, each steel strand 1 is clockwise rotated, so that the screw sleeve 8 is driven by the rotation of the steel strand 1 to move on the limiting plate 7 away from the carrier 3, the constraint of the screw sleeve 8 on the taper clamp 4 gradually decreases, at the same time, the relative extrusion force applied by the hole lower opening 302 to the three sides of the taper clamp 4 gradually decreases until it disappears, so that the taper clamp 4 also moves away from the carrier 3, the gradual decrease of the extrusion force makes the three petals of the taper clamp 4 separate and gradually move away from the steel strand 1;

[0075] In the second step of the present embodiment, after the steel strand 1 is unlocked, it is completely released from the anchor restriction, and when it is pulled out, it is only subjected to the friction force of the PE plastic pipe 2, so it can be pulled out by manpower to complete the recycling.

[0076] In the present embodiment, the steel strand 1 can be recycled by external rotation and manual pulling. The structure of the present application is simple, the recycling steps are convenient and fast, and the possibility of problems occurring in the tensioning process is low. The recycling rate of the steel strand 1 is high, and the recycled steel strand 1 can be reused and stably used in subsequent supporting structures, thereby fully retaining the value of the steel strand 1.

[0077] The connecting and stabilizing assembly in the embodiment comprises a special-shaped L-shaped rod 901 symmetrically arranged on the inner side wall of the protective shell 9, a guide plate 902 symmetrically arranged on the special-shaped L-shaped rod 901, the guide plate 902 being in sliding connection with a guide rod 903, the guide rods 903 being commonly connected with a linkage clamping seat 904, the linkage clamping seat 904 being provided with a linkage rotating rod 905, the linkage rotating rod 905 being provided with a linkage rotating wheel 906, the linkage rotating wheel 906 being in connection with a touch buffer plate 908 through an open slot 907 arranged in the bearing body 3, the touch buffer plate 908 being connected with a combination limiting unit, the guide rod 903 being provided with a guide spring 909, one end of the guide spring 909 being fixedly connected with the guide plate 902, and the other end of the guide spring 909 being fixedly connected with the linkage clamping seat 904.

[0078] When the operator needs to install the protective shell 9 on the bearing body 3, since the bearing body 3 and the protective shell 9 are in threaded connection, the protective shell 9 rotates on the bearing body 3 and gradually descends, and before installation, the two linkage clamping seats 904 in the protective shell 9 pass through the open slot 907, so that the linkage rotating wheel 906 is in contact with the surface of the touch buffer plate 908, thereby playing a positioning role for the protective shell 9 during installation, so as to avoid misplacement during installation and improve the installation efficiency, and meanwhile, through the touch buffer plate 908, the impact force when the protective shell 9 contacts the bearing body 3 is reduced, thereby avoiding damage to the device and improving the stability during installation and the service life of the device.

[0079] The combination limiting unit in the embodiment comprises a touch ring 910 connected with the touch buffer plate 908, a plurality of touch rods 911 arranged on the touch ring 910, the touch rods 911 being in sliding connection with a touch groove 912 arranged on the open slot 907, the touch rod 911 being provided with a touch spring 913, one end of the touch spring 913 being fixedly connected with the open slot 907, and the other end of the touch spring 913 being fixedly connected with the touch ring 910, the touch ring 910 being in cooperation with a bevel-shaped plate 914, the bevel-shaped plate 914 being provided with a positioning rod 915, the positioning rod 915 being fixedly connected with a positioning circular plate 916 through the bearing body 3, the positioning circular plate 916 being provided with a combination sealing mechanism, the positioning rod 915 being provided with a positioning spring 917, one end of the positioning spring 917 being fixedly connected with the positioning circular plate 916, and the other end of the positioning spring 917 being fixedly connected with the outer side wall of the bearing body 3.

[0080] At the same time, due to the gradual descent of the protective shell 9, the trigger ring 910 is limited and moved in the trigger groove 912 by the trigger rod 911, so that the trigger spring 913 is in a buffer state. When the trigger ring 910 drops to a certain position in the open slot 907, the inclined surface below the trigger ring 910 contacts the inclined surface on the inclined surface plate 914, and then it is limited and moved on the carrier 3 by the positioning rod 915, so that the positioning spring 917 is in a buffer state. When the trigger ring 910 passes through the inclined surface plate 914, the reset of the positioning spring 917 drives the inclined surface plate 914 to reset and move, so that it appears above the trigger ring 910. When the coupling on the stabilizing assembly is connected When the moving wheel 906 passes through the inclined differential plate 914, it is limited by it and cannot move further, thereby limiting the protective shell 9 at the current height and preventing it from rotating further, thereby avoiding damage to the threaded connection caused by the protective shell 9 continuing to rotate when it cannot continue to rotate or when it has rotated to the maximum position, thereby improving the service life of the device and protecting the protective shell 9 and the carrier 3, so that the device can be used normally; at the same time, a series of locking structures such as a locking motor can be provided in the inclined differential plate 914, which can limit the linkage clamp 904 to the current position when it contacts the linkage wheel 906, thereby avoiding the use of the protective shell 9 being released due to non-human factors.

[0081] The joint sealing mechanism in this embodiment includes a special-shaped long rod 918 provided on the positioning circular plate 916. The special-shaped long rod 918 is fixedly connected to the semi-ring connecting plate 919. The semi-ring connecting plate 919 is provided with a buffer pad 920. The buffer pads 920 are connected to the connection between the carrier 3 and the protective shell 9.

[0082] When the positioning circular plate 916 moves outward, it also drives the special-shaped long rod 918 to move outward, so that several semi-ring connecting plates 919 move away from the carrier 3. When the inclined special plate 914 resets and appears above the touch ring 910, it also resets several special-shaped long rods 918 and drives the semi-ring connecting plates 919 to reset, so that the buffer pad 920 resets and fits in the connection between the carrier 3 and the protective shell 9 to avoid the gap between the two being too large, thereby reducing the use effect of the protective shell 9. Through the above description, the use effect of the protective shell 9 is improved, and the sealing effect is also improved.

[0083] According to different usage scenarios, different numbers of holes for the steel strands 1 are provided. The range of some holes is smaller than the diameter of 907 and does not affect the normal movement of some mechanisms.

[0084] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0085] While the embodiments of the application have been shown and described herein, it is to be understood that the scope of the application, jointly pointed out in the appended claims, is not to be limited to the above-described embodiments but can be otherwise variously changed, modified, replaced, and altered within the principles and spirit of the present application.

Claims

1. A rotary unlocking recyclable prestressed anchor cable, characterized by: The invention comprises a steel strand (1), a PE plastic pipe (2), a carrier (3), a taper clamp (4), a flat head screw (5), a support sleeve (6), a limit plate (7), a screw sleeve (8) and a protective shell (9), wherein the protective shell (9) and the carrier (3) are connected by a connecting stabilizing component, and the connecting stabilizing component is used to ensure stability when the protective shell (9) is installed; The carrier (3) is provided with an upper hole opening (301) and a lower hole opening (302); the PE plastic pipe (2) is installed on the top of the carrier (3) and is located in the upper hole opening (301), and the two are threadedly connected; A taper fixture (4) is installed in the carrier (3); the taper fixture (4) is located in the lower opening (302) of the hole; The bottom of the carrier (3) is provided with a plurality of bearing holes (303); one end of the support sleeve (6) is mounted on the bottom of the carrier (3) and aligned with the bearing holes (303); the other end of the support sleeve (6) is connected to the limit plate (7); a flat head screw (5) is mounted on the limit plate (7); one end of the flat head screw (5) is located on the side of the limit plate (7) away from the carrier (3), and the other end passes through the support sleeve (6) and is connected to the bearing holes (303), so as to adjust the distance between the limit plate (7) and the carrier (3); The limiting plate (7) is provided with a screw sleeve (8); the limiting plate (7) is provided with a limiting large aperture (701); a threaded hole is machined in the limiting large aperture (701), and the threaded hole size matches the screw sleeve (8); the screw sleeve (8) is hollow and sealed at the bottom, and a screw hole minor diameter (802) is provided in the screw sleeve (8); the screw hole minor diameter (802) is the same as the outer diameter of the steel strand (1), and the rotating steel strand (1) can drive the screw sleeve (8) to rotate together; the steel strand (1) passes through the carrier (3), the taper fixture (4), the limiting plate (7) in sequence until it reaches the bottom of the screw sleeve (8), and the taper fixture (4) is located on the side away from the carrier (3) in the moving path of the screw sleeve (8), and the tapered fixture (4) and the screw sleeve (8) are moved up and down by rotating the steel strand (1); The coupling stabilization component comprises a special-shaped L-rod (901) symmetrically arranged on the inner side wall of the protective shell (9), a guide plate (902) symmetrically mounted on the special-shaped L-rod (901), the guide plate (902) and the guide rod (903) being slidably connected, a plurality of guide rods (903) being commonly connected to a linkage clamp seat (904), a linkage rotating rod (905) being mounted on the linkage clamp seat (904), and a linkage rotating rod (906) being mounted on the linkage rotating rod (905); the linkage rotating rod (906) passing through an open notch (907) provided in the carrier (3) and contacting a touch slow plate (908), the touch slow plate (908) being connected to a combination limit unit; a guide spring (909) being sleeved on the guide rod (903), one end of the guide spring (909) being fixedly connected to the guide plate (902), and the other end being fixedly connected to the linkage clamp seat (904); The combined limiting unit includes a touch ring (910) connected to the touch slow plate (908), a plurality of touch rods (911) are installed on the touch ring (910), and the touch rods (911) are slidably connected to the touch grooves (912) provided on the open notch (907); a touch spring (913) is sleeved on the touch rod (911), one end of the touch spring (913) is fixedly connected to the touch groove (912), and the other end is fixedly connected to the touch ring (910), and the touch ring The ring (910) is connected to the inclined surface plate (914) in a coordinated manner. A positioning rod (915) is installed on the inclined surface plate (914). The positioning rod (915) passes through the carrier (3) and is fixedly connected to the positioning circular plate (916). The positioning circular plate (916) is provided with a joint sealing mechanism. A positioning spring (917) is sleeved on the positioning rod (915). One end of the positioning spring (917) is fixedly connected to the positioning circular plate (916), and the other end is fixedly connected to the outer wall of the carrier (3). The joint sealing mechanism comprises a special-shaped long rod (918) arranged on the positioning circular plate (916), the special-shaped long rod (918) being fixedly connected to the semi-ring connecting plate (919), a buffering pad (920) being provided on the semi-ring connecting plate (919), and a plurality of buffering pads (920) being connected to the connection between the carrier (3) and the protective shell (9).

2. The rotary unlocking recyclable prestressed anchor cable according to claim 1, characterized in that: The number of openings in the carrier (3) depends on the number of strands (1) in each bundle; the diameter of the threaded opening in the upper opening (301) of the hole is the same as the outer diameter of the PE plastic pipe (2); the size of the lower opening (302) of the hole is the same as the size of the taper fixture (4); a threaded opening is machined in the small bearing hole (303), and the threaded opening size is the same as the size of the flat head screw (5). The flat head screw (5) is connected to the carrier (3) by a threaded connection and is used to fix the position of the limit plate (7).

3. The rotary unlocking recyclable prestressed anchor cable according to claim 2, characterized in that: The taper clamp (4) is three-petaled and has a slot (401) inside, wherein a support spring is placed in the slot (401); the carrier (3) and the protective shell (9) are connected by a thread, the outer diameter of the protective shell (9) is the same as the outer diameter of the carrier (3), and the inner diameter of the protective shell (9) is larger than the outer diameter of the limit plate (7).

4. The rotary unlocking recyclable prestressed anchor cable according to claim 3, characterized in that: The limiting plate (7) is provided with a limiting small aperture (702), which is connected to the flat head screw (5) through the limiting small aperture (702); the number of the limiting large apertures (701) is equal to the number of the steel strands (1); the positions of the limiting small aperture (702) and the limiting large aperture (701) are consistent with the positions of the bearing small hole (303) and the hole lower opening (302) on the bearing body (3).

5. The rotary unlocking recyclable prestressed anchor cable according to claim 4, characterized in that: A screw hole major diameter (801) is provided in the screw sleeve (8); the screw hole major diameter (801) is larger than the outer diameter of the taper fixture (4), and the screw sleeve (8) limits the movement of the taper fixture (4).

6. The rotary unlocking recyclable prestressed anchor cable according to claim 5, characterized in that: The installation steps include: Step 1: Place the lower opening of the hole (302) upwards and install the taper fixture (4) into the lower opening of the hole (302); Step 2: Connect the screw sleeve (8) to the limiting large aperture (701) through thread engagement; Step 3: Align the two ends of the support sleeve (6) with the bearing hole (303) and the limiting small hole diameter (702), align the screw hole large diameter (801) with the hole bottom (302), pass the flat head screw (5) through the limiting plate (7) and the support sleeve (6), and connect it to the bearing body (3) through the bearing hole (303) through the threaded connection; Step 4: Connect the protective housing (9) and the carrier (3) via threads; Step 5: Place the hole with the upper opening (301) facing upwards, and thread each PE plastic pipe (2) and the carrier (3) together; Step 6: Pass each steel strand (1) through the carrier (3), the tapered clamp (4), the limit plate (7) until it reaches the bottom of the screw sleeve (8), and rotate each steel strand (1) counterclockwise. Driven by the rotation of the steel strand (1), the screw sleeve (8) moves on the limit plate (7) toward the carrier (3). The screw sleeve (8) pushes the tapered clamp (4) to move toward the carrier (3). When the steel strand (1) rotates until it cannot rotate, the tapered clamp (4) is close to the steel strand (1), and the locking of the steel strand (1) is completed.

7. A construction process for a rotary unlocking recyclable prestressed anchor cable, using the rotary unlocking recyclable prestressed anchor cable according to any one of claims 1 to 6, characterized in that: Including steps: Step 1: tensioning and locking the steel strand (1), sequentially passing each steel strand (1) through the carrier (3), the tapered clamp (4) and the limit plate (7) until it reaches the bottom of the screw sleeve (8), rotating the steel strand (1) counterclockwise until it cannot rotate, so that the tapered clamp (4) is close to the steel strand (1), and then the tensioning operation can be carried out; Step 2: Unlocking and recovering the steel strands (1). When recovering, first release the external working anchor, then rotate each steel strand (1) clockwise until it cannot be rotated, and finally manually pull out the steel strands (1) to complete the recovery.

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