Stay cable anchoring device

Abstract

The invention belongs to the technical field of anchoring devices, and particularly relates to a stay cable anchoring device which comprises concrete, a pre-embedded plate is arranged in the concrete, a stress spring is wound outside the pre-embedded plate, an insertion cylinder is slidably arranged in the pre-embedded plate, a fixing clamping piece is arranged in the insertion cylinder, and a positioning block is slidably arranged on one side of the insertion cylinder. A positioning groove is formed in the positioning block, a compensation block is arranged on one side of the positioning block, a pressure sensor is arranged on the outer circle face of the compensation block, and a protection shell is arranged outside the compensation block. The problems that an inhaul cable is fixed through a fixing clamping piece of an existing fixing anchorage device, and the fixing clamping piece is prone to being broken after being subjected to strong pulling force are solved, the interior of the protective shell can be dehumidified by arranging a dehumidification block and a water guide groove, and the problems that the interior of the existing anchorage device is humid, and the fixing clamping piece in the existing anchorage device is prone to being eroded are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anchoring devices, and particularly relates to a stay cable anchoring device. BACKGROUND

[0002] An anchoring device is an anchoring tool for maintaining the tension of a prestressed tendon and transmitting the tension to the inside of concrete in a post-tensioning structure or member. The stay cable anchoring device is a core force component of a cable-stayed bridge and plays a key role in safely and reliably transmitting the huge tension of a stay cable to a tower or a main beam. The performance of the anchoring device directly determines the load-carrying capacity, durability and safety of the bridge.

[0003] Patent No. CN221030992U discloses a stay cable anchoring device. The utility model discloses an anchor pad, the outer surface top of the anchor pad is provided with an anchor device groove, the inner wall of the anchor device groove is slidably connected with an anchor device, the outer surface of the anchor device is provided with a steel strand hole, the outer surface top of the anchor device is provided with a clamping piece auxiliary fixing structure, the inner wall of the steel strand hole is slidably connected with a working clamping piece, the outer surface top of the anchor pad is provided with a grouting hole, and the outer surface top of the grouting hole is provided with an anti-blocking structure. Through the cooperation of the clamping piece auxiliary fixing structure and the anti-blocking structure, the problem that the single fixing of the working clamping piece may not be fixed enough and may cause serious engineering accidents, huge property losses and even casualties is avoided. The anti-blocking structure can protect the grouting hole during the pouring process of the anchor pad, thereby protecting the normal use of the entire anchoring device.

[0004] In the prior art, the fixing effect can be improved by setting the clamping piece auxiliary fixing structure, and the grouting hole can be protected by the anti-blocking mechanism. However, the following problems still exist during use: first, the existing fixed anchor is fixed to the stay cable by a fixed clamping piece, which is easy to break under strong tension, causing the clamping piece to fail and posing a safety hazard, and is difficult to maintain; second, the inside of the existing anchor is humid, which can erode the internal fixed clamping piece and affect the service life of the device. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the application provides a stay cable anchoring device. By setting a compensation block and a pressure sensor, the sliding direction of the fixed clamping piece is limited, the problem that the existing fixed anchor is fixed to the stay cable by a fixed clamping piece which is easy to break under strong tension is solved, and by setting a dehumidification block and a water diversion groove, the inside of the protective shell can be dehumidified, and the problem that the inside of the existing anchor is humid and can erode the internal fixed clamping piece is solved.

[0006] The application discloses a cable anchorage device, which comprises concrete, the inside of the concrete is provided with a pre-buried plate, the outside of the pre-buried plate is provided with a stress spring, the inside of the pre-buried plate is slidably provided with a plug, the inside of the plug is provided with a plurality of fixed clamping pieces, one side of the plug is slidably provided with a positioning block, the positioning block is in abutment with one end of the fixed clamping piece, the inside of the positioning block is provided with a plurality of positioning grooves, the plurality of positioning grooves are slidably connected with the fixed clamping piece, one side of the positioning block is provided with a compensation block, the outer circular surface of the compensation block is provided with a pressure sensor, the detection end of the pressure sensor is slidably in abutment with the pre-buried plate, and the outside of the compensation block is provided with a protection shell which is convenient to disassemble.

[0007] Preferably, the inner wall of the protection shell is provided with a dehumidification block, the inside of the dehumidification block is filled with dehumidification particles, and the outer surface of the dehumidification block is provided with a plurality of air holes.

[0008] Preferably, the inner wall of the protection shell is provided with a plurality of water guide grooves, and the outer surface of the protection shell is provided with a water inlet.

[0009] Preferably, the outer circular surface of the plug is provided with an inclined convex, the inclined convex is slidably in abutment with the compensation block, the outer surface of the plug is provided with a second tooth block, one side of the second tooth block is provided with a first tooth block on the outer surface of the pre-buried plate, and the second tooth block is in abutment with the first tooth block.

[0010] Preferably, one end of the protection shell is provided with a fixed plate, the fixed plate is fixedly connected with the cable, the inside of the fixed plate is slidably provided with a fixed block, the outside of the fixed block is provided with an engagement groove on the inner wall of the concrete, one end of the fixed block is provided with a connecting rod, the outer surface of the connecting rod is provided with a return spring, one end of the return spring is provided with a fixed seat in the inside of the fixed plate, and the fixed block and the fixed seat are slidably connected.

[0011] Preferably, the fixed block passes through the fixed seat, the protruding end of the fixed block is provided with an inclined block, the outer surface of the inclined block is provided with an inclined surface, the inclined surface of the inclined block is slidably provided with a driving block, one end of the driving block is provided with a button, the inside of the fixed plate is provided with a limiting rod, the driving block and the limiting rod are slidably connected, and the limiting rod is provided with a limiting spring outside.

[0012] Preferably, the outside of the concrete is rotatably provided with a threaded rod, the threaded rod is in threaded transmission connection with the protection shell, one end of the threaded rod is provided with a knob, one side of the concrete is provided with an auxiliary rod, and the protection shell and the auxiliary rod are slidably connected.

[0013] Preferably, the outer surface of the pre-buried plate is provided with a plurality of fin plates.

[0014] Compared with the prior art, the beneficial effects of the present scheme are: (1) The present application can protect the fixed clamping piece by setting structures such as positioning blocks and positioning grooves, compensation blocks and pressure sensors, etc., prevent the fixed clamping piece from being scattered and broken after being subjected to tension, and affect the service life, and detect the tension of the cable and the sliding distance of the cable by setting structures such as compensation blocks and pressure sensors, prevent the cable from being separated from the anchor, and cause safety hazards, thereby improving the safety of the device; (2) The present application can increase the resistance between the embedded plate and the insertion cylinder by setting structures such as the fin plate, the second tooth block, the first tooth block and the inclined convex, prevent the insertion cylinder from being twisted due to uneven tension of the cable, thereby improving the stability of the device, and improve the friction and adhesion between the concrete and the embedded plate by setting the fin plate, thereby further improving the stability of the device; (3) The present application can make the fixed plate and the protective shell separate by pressing the driving block, and make the protective shell separate from the outside of the anchor by rotating the knob to pull the protective shell, thereby improving the disassembly efficiency, thereby improving the maintenance efficiency, and the setting of the dehumidification block and the water guide groove can dehumidify the inside of the protective shell, prevent moisture from corroding the anchor, thereby improving the service life of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the present application; Figure 2 is a front view of the present application; Figure 3 is Figure 2 is a perspective view of A-A in the present application; Figure 4 is Figure 3 is a local enlarged view of B in the present application; Figure 5 is Figure 3 is a local enlarged view of C in the present application; Figure 6 is Figure 2 is a perspective view of D-D in the present application; Figure 7 is Figure 6 is a local enlarged view of E in the present application; Figure 8 is Figure 3 is a local enlarged view of F in the present application; In the figure: concrete 10, protective shell 11, fixed plate 12, auxiliary rod 13, threaded rod 14, knob 15, embedded plate 16, fin plate 17, stress spring 18, dehumidification block 19, air hole 20, water diversion groove 21, compensation block 22, pressure sensor 23, first tooth block 24, second tooth block 25, inclined convex 26, positioning block 27, positioning groove 28, fixed block 29, connecting rod 30, return spring 31, fixed seat 32, inclined block 33, driving block 34, button 35, limiting rod 36, limiting spring 37, insertion cylinder 38, fixed clamping piece 39, water outlet 40. DETAILED DESCRIPTION

[0016] In order to enable personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

[0017] Reference Figure 1 , Figure 2 and Figure 3 , a cable anchor device, comprising concrete 10, the inside of the concrete 10 is provided with embedded plate 16, the outside of the embedded plate 16 is wound with stress spring 18, by setting stress spring 18, the local stress of the anchor in the concrete can be released, and the micro-deformation of the anchor is compensated, the outer surface of the embedded plate 16 is provided with a plurality of fin plates 17, by setting fin plates 17, the contact area of the concrete and the embedded plate 16 can be increased, so as to improve the fixing effect of the embedded plate 16, the embedded plate 16 is slidably provided with insertion cylinder 38 inside, the inside of the insertion cylinder 38 is provided with a plurality of cable holes, the cable passes through the insertion cylinder 38 through the cable hole, a plurality of fixed clamping pieces 39 are arranged between the cable hole and the cable, by setting fixed clamping pieces 39, the friction between the cable and the insertion cylinder 38 can be increased, and by fixed clamping pieces 39, the cable can be clamped when the cable slides, the stability of the cable is improved, the fixed clamping piece 39 is an existing device, and the present application does not make too much elaboration.

[0018] Further, reference Figure 2 , Figure 3 , Figure 4 and Figure 5The side of the plug-in barrel 38 is slidably provided with a positioning block 27 abutting against one end of a fixed clamping piece 39, the inside of the positioning block 27 is provided with a plurality of positioning grooves 28, the plurality of positioning grooves 28 are slidably connected with the fixed clamping piece 39, a plurality of inhaul cables pass through the positioning block 27, one side of the positioning block 27 is provided with a compensation block 22, and the inhaul cable and the compensation block 22 are both provided with the fixed clamping piece 39. After the inhaul cable is displaced, the compensation block 22 is pulled, so that the compensation block 22 pulls the positioning block 27 on one side, and the positioning block 27 extrudes the fixed clamping piece 39 on one side, extruding the fixed clamping piece 39 towards the inside of the plug-in barrel 38, so as to clamp and fix the inhaul cable, and meanwhile the positioning groove 28 can limit the sliding direction of the fixed clamping piece 39, preventing the fixed clamping piece 39 from being separated from the inhaul cable hole and causing collapse, so as to improve the fixing effect and prolong the service life of the fixed clamping piece 39.

[0019] Further, referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the inner wall of the protective shell 11 is provided with a dehumidification block 19, the inside of the dehumidification block 19 is filled with dehumidification particles, and the outer surface of the dehumidification block 19 is provided with a plurality of air holes 20. By arranging the dehumidification block 19, the moisture in the inside of the protective shell 11 can be absorbed, preventing the moisture from corroding the anchor device, thereby prolonging the service life of the anchor device. Meanwhile, by arranging the water guide groove 21, the inner wall of the protective shell 11 is provided with a plurality of water guide grooves 21, and the outer surface of the protective shell 11 is provided with a water outlet 40. When rainwater seeps into the inside of the protective shell 11, the water will flow out of the water outlet 40 along the water guide groove 21, preventing the rainwater from flowing to one end of the anchor device.

[0020] The outer circular surface of the compensation block 22 is provided with a pressure sensor 23, and the detection end of the pressure sensor 23 is slidably abutted against the pre-buried plate 16. By arranging the pressure sensor 23, the sliding distance of the compensation block 22 can be detected. When the compensation block 22 slides, the compensation block 22 will move the pressure sensor 23 on one side, and the pressure data of the pressure sensor 23 will change, thereby sending a detection signal to the control terminal for timely maintenance. The compensation block 22 is externally provided with a protective shell 11 convenient for disassembly. It should be noted that, in the actual operation process, a micro battery for supplying power to the pressure sensor 23 and a signal sending end will be arranged in the protective shell 11, and the pressure sensor and the power supply control end will be subjected to moisture-proof sealing treatment, so as to ensure normal operation. Considering that it is prior art, the present scheme will not be described in detail.

[0021] Further, referring to Figure 2 , Figure 3 and Figure 4The outer circular surface of the insertion sleeve 38 is provided with an inclined protrusion 26, which is in sliding abutment with the compensation block 22. The inclined protrusion 26 can block the sliding of the compensation block 22, thereby improving the fixing effect on the cable. The outer surface of the insertion sleeve 38 is provided with a second tooth block 25. The first tooth block 24 is arranged on the outer surface of the embedded plate 16 on one side of the second tooth block 25. The second tooth block 25 is in abutment with the first tooth block 24. The first tooth block 24 and the second tooth block 25 are different from the gear. The tooth surface of the two tooth blocks is arranged on the overall end surface in the circumferential direction. The tooth surfaces of the two tooth blocks are in abutment with each other. The second tooth block 25 and the first tooth block 24 can improve the friction between the insertion sleeve 38 and the embedded plate 16, prevent the insertion sleeve 38 from being twisted due to uneven tension of the cable, and improve the stability of the device.

[0022] Further, with reference to Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 8 , one end of the protective shell 11 is provided with a fixed plate 12, which is fixedly connected with the cable. The fixed plate 12 is provided with a fixed block 29 which is slidably arranged in the interior of the fixed plate 12. The exterior of the fixed block 29 is provided with an engagement groove on the inner wall of the concrete 10. One end of the fixed block 29 is provided with a connecting rod 30. The outer surface of the connecting rod 30 is provided with a return spring 31. One end of the return spring 31 is provided with a fixed seat 32 in the interior of the fixed plate 12. The fixed block 29 is in sliding fit connection with the fixed seat 32. The fixed block 29 passes through the fixed seat 32. The protruding end of the fixed block 29 is provided with an inclined block 33. The outer surface of the inclined block 33 is provided with an inclined surface. The inclined surface of the inclined block 33 is slidably provided with a driving block 34. One end of the driving block 34 is provided with a button 35. The interior of the fixed plate 12 is provided with a limiting rod 36. The driving block 34 is in sliding fit connection with the limiting rod 36. The limiting rod 36 is provided with a limiting spring 37 on the outside. The exterior of the concrete 10 is rotatably provided with a threaded rod 14. The threaded rod 14 is in threaded transmission connection with the protective shell 11. One end of the threaded rod 14 is provided with a knob 15. One side of the concrete 10 is provided with an auxiliary rod 13. The protective shell 11 is in sliding fit connection with the auxiliary rod 13. It should be noted that a dust protection cover is arranged on the exterior of the threaded rod 14 in actual production, so as to prevent dust from entering the threaded surface of the threaded rod 14 during construction, thereby ensuring the normal use of the device. The dust protection cover is considered as prior art, and therefore, the present scheme will not be described in detail.

[0023] When the anchor needs to be overhauled, the button 35 is pressed, so that the button 35 drives the driving block 34 at one end to slide to the inside of the fixed plate 12, the driving block 34 contacts the inclined surface of the inclined block 33 and continues to move, the inclined block 33 moves away from the one end of the fixed block 29 under the pressure, thereby driving the connecting rod 30 to move, the connecting rod 30 extrudes the return spring 31 after moving and drives the fixed block 29 to move, so that the fixed block 29 is separated from the engagement groove on the inner wall of the protective shell 11, and the knob 15 is rotated at the same time, so that the knob 15 drives the threaded rod 14 to rotate, the threaded rod 14 moves the protective shell 11 through the thread after rotating, so that the protective shell 11 is separated from the outside of the anchor, thereby overhauling the anchor, and the one end of the protective shell 11 is provided with a backing plate, so that the sealing effect can be increased after the protective shell 11 contacts the concrete through the backing plate.

[0024] The installation mode, connection mode and the like of the cable anchor device are common mechanical modes, and the control of the detection member on the driving member and the related detection mode of each detection member and the specific circuit relationship can adopt conventional electrical control technology, as long as the corresponding movement relationship can be completed in the scheme and the beneficial effects are achieved; the fixed clamping piece 39, the stress spring 18, the pressure sensor 23 and the like in the cable anchor device are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0025] As some terms are used in the description and claims to refer to certain components. Those skilled in the art should understand that hardware manufacturers may use different names to refer to the same component. The description and claims of this specification do not take the difference in name as the way to distinguish the components, but take the difference in function of the components as the criterion for distinction. As mentioned throughout the description and claims, "including" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means within an acceptable error range, and those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects.

[0026] It should be noted that the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the goods or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such goods or system. Without more limitation, the element defined by the sentence "including a" does not exclude the existence of another identical element in the goods or system including the element.

[0027] The foregoing description illustrates and describes several preferred embodiments of the present application. However, it is to be understood that the application is not limited to the precise forms described, and that changes can be made therein without departing from the scope of the present application. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. Therefore, the specification and examples are to be considered exemplary only, with a true scope and spirit of the application being indicated by the following claims.

Claims

1. A stay cable anchoring device comprising concrete (10), characterized in that, The inside of the concrete (10) is provided with a pre-embedded plate (16), the outside of the pre-embedded plate (16) is provided with a stress spring (18), the inside of the pre-embedded plate (16) is slidably provided with a plug-in cylinder (38), the inside of the plug-in cylinder (38) is provided with a plurality of fixed clamping pieces (39), one side of the plug-in cylinder (38) is slidably provided with a positioning block (27), the positioning block (27) abuts one end of the fixed clamping piece (39), the inside of the positioning block (27) is provided with a plurality of positioning grooves (28), the plurality of positioning grooves (28) are slidably connected with the fixed clamping piece (39), one side of the positioning block (27) is provided with a compensation block (22), the outer circular surface of the compensation block (22) is provided with a pressure sensor (23), the detection end of the pressure sensor (23) is slidably abutted with the pre-embedded plate (16), the outside of the compensation block (22) is provided with a protective shell (11) which is convenient to disassemble.

2. A stay cable anchorage device according to claim 1, wherein The inner wall of the protective shell (11) is provided with a dehumidification block (19), the inside of the dehumidification block (19) is filled with dehumidification particles, and the outer surface of the dehumidification block (19) is provided with a plurality of air holes (20).

3. A stay cable anchorage device as defined in claim 1, wherein The inner wall of the protective shell (11) is provided with a plurality of water diversion grooves (21), and the outer surface of the protective shell (11) is provided with a water outlet (40).

4. A stay cable anchorage device as defined in claim 1, wherein The outer circular surface of the plug-in cylinder (38) is provided with an inclined surface protrusion (26), the inclined surface protrusion (26) is slidably abutted with the compensation block (22), the outer surface of the plug-in cylinder (38) is provided with a second tooth block (25), one side of the second tooth block (25) is provided with a first tooth block (24) on the outer surface of the pre-embedded plate (16), and the second tooth block (25) is abutted with the first tooth block (24).

5. A stay cable anchorage device as defined in claim 1 wherein, One end of the protective shell (11) is provided with a fixed plate (12), the fixed plate (12) is fixedly connected with a cable, the inside of the fixed plate (12) is slidably provided with a fixed block (29), the outside of the fixed block (29) is provided with an engagement groove on the inner wall of the concrete (10), one end of the fixed block (29) is provided with a connecting rod (30), the outer surface of the connecting rod (30) is provided with a return spring (31), one end of the return spring (31) is provided with a fixed seat (32) in the inside of the fixed plate (12), and the fixed block (29) is slidably connected with the fixed seat (32).

6. A stay cable anchorage device according to claim 5, wherein, The fixed block (29) passes through the fixed seat (32), the protruding end of the fixed block (29) is provided with an inclined surface block (33), the outer surface of the inclined surface block (33) is provided with an inclined surface, the inclined surface of the inclined surface block (33) is slidably provided with a driving block (34), one end of the driving block (34) is provided with a button (35), the inside of the fixed plate (12) is provided with a limiting rod (36), the driving block (34) is slidably connected with the limiting rod (36), and the limiting rod (36) is externally provided with a limiting spring (37).

7. A stay cable anchorage device according to claim 6, wherein The outer rotation of the concrete (10) is provided with a threaded rod (14), the threaded rod (14) is in threaded transmission connection with a protective shell (11), one end of the threaded rod (14) is provided with a knob (15), one side of the concrete (10) is provided with an auxiliary rod (13), and the protective shell (11) and the auxiliary rod (13) are in sliding fit connection.

8. A stay cable anchorage device as defined in claim 1, wherein, The outer surface of the pre-embedded plate (16) is provided with a plurality of fin plates (17).

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