CN113322779A

CN113322779A - Prestressed anchorage device

Info

Publication number: CN113322779A
Application number: CN202110501671.6A
Authority: CN
Inventors: 林玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-31

Abstract

The invention discloses a prestressed anchor, which comprises an anchor plate, wherein one side of the anchor plate is fixedly connected with a horn pipe and a corrugated pipe in sequence, the peripheries of the horn pipe and the corrugated pipe are sleeved with spiral ribs, one end of each spiral rib is fixedly connected with one side wall of the anchor plate, the other side of the anchor plate is fixedly connected with a sleeve, the centers of the anchor plate, the horn pipe and the corrugated pipe are all provided with grouting holes, the center of each sleeve is fixedly connected with one end of a connecting pipe and communicated with the corresponding connecting pipe, the other end of each connecting pipe is connected with the grouting holes in the side wall of the anchor plate, the side wall of the anchor plate is provided with a plurality of anchor plugs, the anchor plugs are distributed in an annular array, the side walls of the horn pipe and the corrugated pipe are provided with a plurality of mounting holes, the mounting holes correspond to the anchor plugs one by one, each anchor plug is internally provided with a prestressed rib, and the prestressed ribs penetrate through the mounting holes and extend out of the corrugated pipe, the invention is beneficial to stabilizing the clamping piece and preventing the clamping piece from falling off.

Description

Prestressed anchorage device

Technical Field

The invention relates to the technical field of anchorage devices, in particular to a prestressed anchorage device.

Background

An anchor device. The anchor is suitable for the prestressed tensioning of concrete in the engineering construction process. Generally, it is often used in bridge construction, installs the location in advance, then concreting, buries in the both ends of concrete, namely two ends of bellows, is the terminal surface that sets up for the stabilizing effect of jack during stretch-draw, and the shortcoming of current prestressed anchorage utensil is, and the clamping piece is unstable, breaks away from the anchor stopper easily.

Disclosure of Invention

The invention aims to provide a prestressed anchor, which solves the problems that the clamping piece in the prior art is unstable and is easy to separate from the anchor plug. In order to achieve the purpose, the invention provides the following technical scheme: a prestressed anchorage device comprises an anchor plate, wherein a horn pipe and a corrugated pipe are fixedly connected to one side of the anchor plate in sequence, spiral ribs are sleeved on the peripheries of the horn pipe and the corrugated pipe, one end of each spiral rib is fixedly connected with one side wall of the anchor plate, a sleeve is fixedly connected to the other side of the anchor plate, grouting holes are formed in the centers of the anchor plate, the horn pipe and the corrugated pipe, one end of a connecting pipe is fixedly connected to the center of the sleeve and communicated with the sleeve, the other end of the connecting pipe is connected with the grouting holes in the side walls of the anchor plate, a plurality of anchor plugs are arranged on the side walls of the anchor plate and distributed in an annular array, a plurality of mounting holes are formed in the side walls of the horn pipe and the corrugated pipe, the mounting holes correspond to the anchor plugs one to one, prestressed ribs are arranged in each anchor plug, and extend out of the corrugated pipe after penetrating through the mounting holes, the telescopic lateral wall has been seted up a plurality of and the corresponding round hole of anchor block, the other end of prestressing tendons passes the round hole, just the inside of round hole is provided with adjustment mechanism, be provided with two relative clamping pieces in the anchor block, one side of clamping piece is provided with the slide, the lateral wall of the one end fixed connection anchor slab of slide, the other end fixedly connected with connecting plate of slide, just the vertical setting of connecting plate, the second spout has been seted up to the central authorities department of slide, sliding connection has the slider in the second spout, the slider is the I shape, just the slider is connected with the clamping piece through setting up slide mechanism, one side of connecting plate is provided with moving mechanism.

Preferably, the adjusting mechanism comprises arc plates symmetrically arranged on two sides in the round hole, the outer wall of each arc plate is fixedly connected with a base plate, two side-symmetric and fixedly connected with guide rods of the base plate are connected with convex plates in a sliding mode, bolts are inserted into the central parts of the convex plates and are matched with the threads, the end parts of the bolts are connected with the side walls of the base plates in a threaded mode, and one side of each convex plate is connected with the sleeve through an ejection mechanism.

Preferably, the ejection mechanism comprises a transverse plate, one end side wall of the transverse plate is fixedly connected with one end side wall of the convex plate, one side of the transverse plate is rotatably connected with a threaded rod, one end of the threaded rod penetrates through the sleeve and is in threaded fit with the sleeve, a nut is sleeved on the outer surface of the threaded rod in a threaded manner, and one end of the nut is rotatably connected with the side wall of the sleeve.

Preferably, slide mechanism is including seting up the first spout in clamping piece one side, one side fixedly connected with riser of first spout, be provided with T type slider in the first spout, just leave the clearance between the bottom of T type slider and the first spout, the top looks adaptation of the first spout in top of T type slider and with to sliding fit, the top surface of T type slider is connected through the bottom surface that sets up elastic mechanism and slider.

Preferably, the elastic mechanism includes the fixed block, the top surface fixedly connected with montant of fixed block, the top of montant runs through the slider and with it sliding fit, the top fixedly connected with limiting plate of montant, the surface cover of montant is equipped with the second spring, the top surface of the top fixed connection slider of second spring, the upper surface of the bottom fixed connection fixed block of second spring.

Preferably, the moving mechanism includes the fixed plate, the both ends symmetry fixedly connected with cylinder of fixed plate, columniform one end runs through the connecting plate and sliding fit with it, and two the equal fixedly connected with plectane of tip, two the tip of plectane is provided with stop gear, two the first spring is all overlapped to columniform surface, the lateral wall of the one end fixed connection fixed plate of first spring, the other end of first spring is connected with the lateral wall of connecting plate.

Preferably, stop gear includes the L template, one side of L template supports the lateral wall of plectane, the top surface fixedly connected with movable post of L template, the top surface fixedly connected with roof of activity post, the roof runs through the slide and sliding fit with it, one side fixedly connected with connecting block of connecting plate, activity post through connection piece and sliding fit with it, the surface cover of activity post is equipped with the third spring, the top of third spring is connected with the lower surface of connecting block, the upper surface of the bottom fixed connection L template of third spring.

Preferably, a sliding rod is inserted into the side wall of the top plate in a sliding manner, one end of the sliding rod penetrates through the side wall of the connecting plate and is in sliding fit with the side wall, and the other end of the sliding rod is fixedly connected with the side wall of the sliding block.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the sliding mechanism is matched with the elastic mechanism, and the second spring and the vertical rod are arranged, so that after the prestressed tendon is pulled by an external force, the prestressed tendon retracts to drive the clamping piece to move towards the anchor plug, and the bottom surface of the T-shaped sliding block is propped against the clamping piece under the elastic action of the second spring, so that the clamping piece can clamp the prestressed tendon, and the stability of the prestressed tendon is enhanced.

2. Through setting up moving mechanism and stop gear, before the clamping piece removed, on the one hand, the L template can support the one end of clamping piece to prevent that the clamping piece from breaking away from the anchor stopper, on the other hand, the L template can support the cylinder, thereby prevent that the cylinder from receiving the elastic force effect of first spring and removing.

3. In addition, when the clamping piece moves, when the vertical plate on one side of the first sliding groove moves to one side of the T-shaped sliding block, the T-shaped sliding block moves to the anchor plug together with the clamping piece, the sliding block moves along with the sliding block, the sliding rod fixedly connected to one side of the sliding block moves along with the sliding block, when one end of the sliding rod moves to be separated from the top plate, namely, the prestressed ribs complete contraction at the moment, the sliding block moves to one side of the second sliding groove, the end part of the clamping piece enters the anchor plug, the top plate is not limited by the sliding rod any more, the movable column is matched with the movable column through the arrangement of the third spring, the movable column moves upwards under the elastic action of the third spring, the L-shaped plate moves upwards, the L-shaped plate does not abut against the circular plate any more, the circular plate is matched with the cylinder through the arrangement of the first spring, the cylinder is driven to move due to the rebound, so that the circular plate abuts against the side wall of the clamping piece, and the clamping piece is prevented from falling.

4. Through setting up adjustment mechanism, the prestressing tendons contracts and accomplishes the back, cuts the prestressing tendons along the round hole border, when needs adjust the prestressing tendons, screws up the bolt for the tip of prestressing tendons can be pressed from both sides tightly to the arc, through rotating the nut, can rotate the threaded rod, thereby can tractive or shrink prestressing tendons, with this to the prestressing tendons adjust.

Drawings

FIG. 1 is a schematic structural view of a prestressed anchorage according to the present invention;

FIG. 2 is an enlarged view of the prestressed anchorage of FIG. 1 at A;

FIG. 3 is a partial sectional view of a prestressed anchorage device according to the present invention;

FIG. 4 is a partial sectional view of another angle of the prestressed anchorage according to the present invention;

FIG. 5 is a cross-sectional view of a flare tube and a corrugated tube of the prestressed anchorage device according to the present invention;

FIG. 6 is a schematic view of a partial structure of a prestressed anchorage device according to the present invention;

FIG. 7 is a partial sectional view of the anchor plate and clip of the prestressed anchorage device of the present invention;

FIG. 8 is an enlarged view of the prestressed anchorage of FIG. 7 at B.

In the figure: 1. an anchor plate; 2. a flare tube; 3. a spiral rib; 4. a bellows; 5. a connecting pipe; 6. a sleeve; 7. a threaded rod; 8. a transverse plate; 9. a bolt; 10. an arc-shaped plate; 11. a circular hole; 12. a guide bar; 13. mounting holes; 14. prestressed tendons; 15. grouting holes; 16. a connecting plate; 17. a slide base; 18. a first chute; 19. a clip; 20. a fixing plate; 21. a slide bar; 22. a first spring; 23. an anchor plug; 24. a vertical rod; 25. a limiting plate; 26. a slider; 27. a second chute; 28. a second spring; 29. a fixed block; 30. a T-shaped slider; 31. a third spring; 32. a cylinder; 33. connecting blocks; 34. a top plate; 35. a vertical plate; 36. a movable post; 37. a nut; 38. a convex plate; 39. a base plate; 40. an L-shaped plate; 41. a circular plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a prestressed anchor comprises an anchor plate 1, wherein one side of the anchor plate 1 is fixedly connected with a horn tube 2 and a corrugated tube 4 in sequence, the peripheries of the horn tube 2 and the corrugated tube 4 are sleeved with a spiral rib 3, one end of the spiral rib 3 is fixedly connected with one side wall of the anchor plate 1, the other side of the anchor plate 1 is fixedly connected with a sleeve 6, the center parts of the anchor plate 1, the horn tube 2 and the corrugated tube 4 are respectively provided with a grouting hole 15, the center part of the sleeve 6 is fixedly connected with one end of a connecting tube 5 and communicated with the one end, the other end of the connecting tube 5 is connected with the grouting holes 15 on the side wall of the anchor plate 1, the side wall of the anchor plate 1 is provided with a plurality of anchor plugs 23, the anchor plugs 23 are arranged in an annular array, the side walls of the horn tube 2 and the corrugated tube 4 are provided with a plurality of mounting holes 13, the mounting holes 13 correspond to the anchor plugs 23 one by one, each anchor plug 23 is internally provided with a prestressed rib 14, the prestressed rib 14 which passes through the mounting hole 13 and extends out of the corrugated tube 4, the lateral wall of sleeve 6 has seted up a plurality of and the corresponding round hole 11 of anchor plug 23, the other end of prestressing tendons 14 passes round hole 11, and the inside of round hole 11 is provided with adjustment mechanism, be provided with two relative clamping pieces 19 in the anchor plug 23, one side of clamping piece 19 is provided with slide 17, the one end fixed connection anchor slab 1's of slide 17 lateral wall, the other end fixedly connected with connecting plate 16 of slide 17, and the vertical setting of connecting plate 16, second spout 27 has been seted up to the central authorities department of slide 17, sliding connection has slider 26 in the second spout 27, slider 26 is the I shape, and slider 26 is connected with clamping piece 19 through setting up slide mechanism, one side of connecting plate 16 is provided with moving mechanism.

The adjusting mechanism comprises arc plates 10 which are symmetrically arranged at two sides in a round hole 11, backing plates 39 are fixedly connected with the outer walls of the arc plates 10, guide rods 12 are symmetrically and fixedly connected with two sides of the backing plates 39, a convex plate 38 is connected with the end part of the guide rod 12 in a sliding manner, a bolt 9 is inserted into the center of the convex plate 38 and is in threaded fit with the side wall of the backing plate 39, the end part of the bolt 9 is in threaded connection with the side wall of the backing plate 39, one side of the convex plate 38 is connected with the sleeve 6 through an ejection mechanism, the ejection mechanism comprises a transverse plate 8, one end side wall of the transverse plate 8 is fixedly connected with one end side wall of the convex plate 38, one side of the transverse plate 8 is rotatably connected with a threaded rod 7, one end of the threaded rod 7 penetrates through the sleeve 6 and is in threaded fit with the sleeve 6, a nut 37 is sleeved on the outer surface of the threaded rod 7, one end of the nut 37 is rotatably connected with the side wall of the sleeve 6, after the prestressed rib 14 retracts, the prestressed rib 14 is cut off along the edge of the round hole 11, when the tendon 14 needs to be adjusted, the bolt 9 is screwed down, so that the arc-shaped plate 10 can clamp the end part of the tendon 14, the threaded rod 7 can be rotated by rotating the nut 37, the tendon 14 can be pulled or contracted, and the tendon 14 is adjusted.

The sliding mechanism comprises a first sliding groove 18 arranged on one side of a clamping piece 19, a vertical plate 35 is fixedly connected to one side of the first sliding groove 18, a T-shaped sliding block 30 is arranged in the first sliding groove 18, a gap is reserved between the bottom of the T-shaped sliding block 30 and the first sliding groove 18, the top of the first sliding groove 18 on the top of the T-shaped sliding block 30 is matched and matched with the top of the first sliding groove, the top surface of the T-shaped sliding block 30 is connected with the bottom surface of a sliding block 26 through an elastic mechanism, the elastic mechanism comprises a fixing block 29, a vertical rod 24 is fixedly connected to the top surface of the fixing block 29, the top end of the vertical rod 24 penetrates through the sliding block 26 and is matched with the sliding block in a sliding mode, a limiting plate 25 is fixedly connected to the top end of the vertical rod 24, a second spring 28 is sleeved on the outer surface of the vertical rod 24, the top end of the second spring 28 is fixedly connected with the top surface of the sliding block 26, the bottom end of the second spring 28 is fixedly connected with the upper surface of the fixing block 29, and the second spring 28 and the vertical rod 24 are arranged, after the prestressed tendon 14 is pulled by an external force, the prestressed tendon 14 retracts to drive the clip 19 to move towards the anchor plug 23, and the elastic force of the second spring 28 enables the bottom surface of the T-shaped sliding block 30 to abut against the clip 19, so that the clip 19 can clamp the prestressed tendon 14, and the stability of the prestressed tendon 14 is enhanced.

The moving mechanism comprises a fixed plate 20, columns 32 are symmetrically and fixedly connected to two ends of the fixed plate 20, one end of each column 32 penetrates through and is in sliding fit with a connecting plate 16, circular plates 41 are fixedly connected to two end portions of each circular plate 41, a limiting mechanism is arranged at the end portions of the two circular plates 41, a first spring 22 is sleeved on the outer surface of each column 32, one end of each first spring 22 is fixedly connected with the side wall of the fixed plate 20, the other end of each first spring 22 is connected with the side wall of the connecting plate 16, each limiting mechanism comprises an L-shaped plate 40, one side of each L-shaped plate 40 abuts against the side wall of each circular plate 41, a movable column 36 is fixedly connected to the top surface of each L-shaped plate 40, a top plate 34 is fixedly connected to the top surface of each movable column 36, each top plate 34 penetrates through and is in sliding fit with a sliding seat 17, a connecting block, the top end of the third spring 31 is connected with the lower surface of the connecting block 33, the bottom end of the third spring 31 is fixedly connected with the upper surface of the L-shaped plate 40, the side wall of the top plate 34 is inserted with the slide rod 21 in a sliding manner, one end of the slide rod 21 penetrates through and is matched with the side wall of the connecting plate 16 in a sliding manner, the other end of the slide rod 21 is fixedly connected with the side wall of the sliding block 26, the L-shaped plate 41 can abut against the column 32 to prevent the column 32 from moving under the elastic force of the first spring 22, in addition, when the clamping piece 19 moves, when the vertical plate 35 on one side of the first sliding chute 18 moves to one side of the T-shaped sliding block 30, the T-shaped sliding block 30 moves towards the anchor plug 23 together with the clamping piece 19, the sliding block 26 moves along with the slide rod 21 fixedly connected to one side of the sliding block 26, when one end of the slide rod 21 moves to be separated from the top plate 34, namely, the prestressed rib 14 contracts at this time, the sliding block 26 moves to one side of the second sliding chute 27, in clamping piece 19 tip got into anchor plug 23, roof 34 no longer received slide bar 21's restriction, through setting up third spring 31 and activity post 36 and cooperateing, activity post 36 receives the spring action rebound of third spring 31, thereby the L template 41 shifts up, and L template 41 no longer supports disc 41, through setting up first spring 22 and cylinder 32 and cooperateing, because first spring 22 kick-backs, drives cylinder 32 and removes for disc 41 supports the lateral wall of clamping piece 19, prevents that clamping piece 19 from droing.

The working principle is as follows: through the arrangement of the sliding mechanism and the elastic mechanism, the second spring 28 and the vertical rod 24, after the prestressed tendon 14 is pulled by an external force, the prestressed tendon 14 retracts to drive the clamping piece 19 to move towards the anchor plug 23, the bottom surface of the T-shaped sliding block 30 is abutted against the clamping piece 19 under the elastic action of the second spring 28, so that the clamping piece 19 can clamp the prestressed tendon 14, the stability of the prestressed tendon 14 is enhanced, through the arrangement of the moving mechanism and the limiting mechanism, before the clamping piece 19 moves, on one hand, the L-shaped plate 41 can be abutted against one end of the clamping piece 19 to prevent the clamping piece 19 from being separated from the anchor plug 23, on the other hand, the L-shaped plate 41 can be abutted against the cylinder 32 to prevent the cylinder 32 from moving under the elastic action of the first spring 22, in addition, when the clamping piece 19 moves, when the vertical plate 35 on one side of the first sliding chute 18 moves to one side of the T-shaped sliding block 30, the T-shaped sliding block 30 moves towards the anchor plug 23 together with the clamping piece 19, the slide block 26 moves along with the slide block, the slide rod 21 fixedly connected to one side of the slide block 26 moves along with the slide block, when one end of the slide rod 21 moves to be separated from the top plate 34, namely the prestressed tendon 14 finishes shrinking at the moment, the slide block 26 moves to one side of the second slide groove 27, the end part of the clamping piece 19 enters the anchor plug 23, the top plate 34 is not limited by the slide rod 21 any more, the movable column 36 is matched with the third spring 31, the movable column 36 moves upwards under the elastic action of the third spring 31, the L-shaped plate 41 moves upwards, the L-shaped plate 41 does not abut against the circular plate 41 any more, the first spring 22 is matched with the cylinder 32, the first spring 22 rebounds to drive the cylinder 32 to move, so that the circular plate 41 abuts against the side wall of the clamping piece 19 to prevent the clamping piece 19 from falling off, after the prestressed tendon 14 retracts by arranging the adjusting mechanism, the prestressed tendon 14 is cut off along the edge of the circular hole 11, when the prestressed tendon 14 needs to be adjusted, the bolts 9 are tightened so that the arcuate plate 10 can clamp the end of the tendon 14 and by turning the nut 37 the threaded rod 7 can be turned so that the tendon 14 can be pulled or contracted, thereby adjusting the tendon 14.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A prestressed anchorage utensil, includes anchor slab (1), its characterized in that: one side of the anchor plate (1) is fixedly connected with a horn tube (2) and a corrugated tube (4) in sequence, the periphery of the horn tube (2) and the corrugated tube (4) is sleeved with a spiral rib (3), one end of the spiral rib (3) is fixedly connected with one side wall of the anchor plate (1), the other side of the anchor plate (1) is fixedly connected with a sleeve (6), grouting holes (15) are formed in the center positions of the anchor plate (1), the horn tube (2) and the corrugated tube (4), one end of a connecting pipe (5) is fixedly connected with the center position of the sleeve (6) and communicated with the sleeve, the other end of the connecting pipe (5) is connected with the grouting holes (15) in the side wall of the anchor plate (1), a plurality of anchor plugs (23) are formed in the side wall of the anchor plate (1), the anchor plugs (23) are arranged in an annular array, a plurality of mounting holes (13) are formed in the side walls of the horn tube (2) and the corrugated tube (4), the mounting holes (13) correspond to the anchor plugs (23) one by one, each anchor plug (23) is internally provided with a prestressed tendon (14), the prestressed tendon (14) penetrates through the mounting hole (13) and extends out of the corrugated pipe (4), the side wall of the sleeve (6) is provided with a plurality of round holes (11) corresponding to the anchor plugs (23), the other end of the prestressed tendon (14) penetrates through the round holes (11), an adjusting mechanism is arranged inside the round holes (11), two opposite clamping pieces (19) are arranged in the anchor plugs (23), one side of each clamping piece (19) is provided with a sliding seat (17), one end of each sliding seat (17) is fixedly connected with the side wall of the anchor plate (1), the other end of each sliding seat (17) is fixedly connected with a connecting plate (16), the connecting plates (16) are vertically arranged, the center of each sliding seat (17) is provided with a second sliding groove (27), the sliding block (26) is connected to the second sliding groove (27) in a sliding mode, the sliding block (26) is I-shaped, the sliding block (26) is connected with the clamping piece (19) through the sliding mechanism, and the moving mechanism is arranged on one side of the connecting plate (16).

2. The prestressed anchorage of claim 1, wherein: adjustment mechanism sets up arc (10) of both sides in round hole (11) including the symmetry, arc (10) outer wall fixedly connected with backing plate (39), the bilateral symmetry fixedly connected with guide arm (12) of backing plate (39), the tip sliding connection of guide arm (12) has flange (38), the central authorities department cartridge of flange (38) have bolt (9) and with to screw-thread fit, just the lateral wall of the tip threaded connection backing plate (39) of bolt (9), one side of flange (38) is connected with sleeve (6) through setting up ejection mechanism.

3. The prestressed anchorage of claim 2, wherein: the ejection mechanism comprises a transverse plate (8), one end side wall of the transverse plate (8) is fixedly connected with one end side wall of a convex plate (38), one side of the transverse plate (8) is rotatably connected with a threaded rod (7), one end of the threaded rod (7) penetrates through the sleeve (6) and is in threaded fit with the sleeve, a nut (37) is sleeved on the outer surface thread of the threaded rod (7), and one end of the nut (37) is rotated to connect the side wall of the sleeve (6).

4. The prestressed anchorage of claim 1, wherein: slide mechanism is including offering first spout (18) in clamping piece (19) one side, one side fixedly connected with riser (35) of first spout (18), be provided with T type slider (30) in first spout (18), just leave the clearance between the bottom of T type slider (30) and first spout (18), the top looks adaptation of the first spout (18) in top of T type slider (30) and with to sliding fit, the top surface of T type slider (30) is connected through the bottom surface that sets up elastic mechanism and slider (26).

5. The prestressed anchorage of claim 4, wherein: elastic mechanism includes fixed block (29), the top surface fixedly connected with montant (24) of fixed block (29), slider (26) and sliding fit with it are run through on the top of montant (24), the top fixedly connected with limiting plate (25) of montant (24), the surface cover of montant (24) is equipped with second spring (28), the top surface of the top fixed connection slider (26) of second spring (28), the upper surface of the bottom fixed connection fixed block (29) of second spring (28).

6. The prestressed anchorage of claim 1, wherein: moving mechanism includes fixed plate (20), the both ends symmetry fixedly connected with cylinder (32) of fixed plate (20), the one end of cylinder (32) runs through connecting plate (16) and sliding fit with it, and two the equal fixedly connected with plectane (41) of tip, two the tip of plectane (41) is provided with stop gear, two the surface of cylinder (32) all overlaps and is equipped with first spring (22), the lateral wall of the one end fixed connection fixed plate (20) of first spring (22), the other end of first spring (22) is connected with the lateral wall of connecting plate (16).

7. The prestressed anchorage of claim 6, wherein: stop gear includes L template (40), one side of L template (40) supports the lateral wall of plectane (41), the top surface fixedly connected with activity post (36) of L template (40), top surface fixedly connected with roof (34) of activity post (36), roof (34) run through slide (17) and sliding fit with it, one side fixedly connected with connecting block (33) of connecting plate (16), activity post (36) run through connecting block (33) and sliding fit with it, the surface cover of activity post (36) is equipped with third spring (31), the top of third spring (31) is connected with the lower surface of connecting block (33), the upper surface of the bottom fixed connection L template (40) of third spring (31).

8. The prestressed anchorage of claim 7, wherein: the side wall of the top plate (34) is inserted with a sliding rod (21) in a sliding mode, one end of the sliding rod (21) penetrates through the side wall of the connecting plate (16) and is in sliding fit with the side wall, and the other end of the sliding rod (21) is fixedly connected with the side wall of the sliding block (26).