A prestressed anchor rod unlocking device

Abstract

The application provides a prestressed anchor rod unlocking device, an unlocking device support and a waist beam, a jack is bolted on the inside top of the unlocking device support, and a mounting support is bolted on the lower end of the unlocking device support; an unlocking anchor head is bolted on the inside top of the jack; a prestressed main anchor rod is fixed in the unlocking anchor head, and a working anchor head is connected below the prestressed main anchor rod; the working anchor head is fixed on the inside top of the waist beam; the jack is connected with an oil pump through a pipeline; a movable driving support structure is supported on the outer wall of the jack, and an assembling and disassembling connecting disc structure is mounted above the movable driving support structure. When the prestressed main anchor rod is pulled and connected too tightly with the unlocking anchor head, the assembling and disassembling connecting disc structure can push the prestressed main anchor rod to rise and separate from the unlocking anchor head conveniently, thereby avoiding the problem that the connection is too tight and inconvenient to separate.

Description

Technical Field

[0001] The invention belongs to the technical field of anchor rod unlocking, and in particular relates to a prestressed anchor rod unlocker. Background Art

[0002] The unlocker is an instrument for unlocking and disassembling the prestressed anchor rod installed on the anchor head, which eliminates the need to destroy the anchor head and unlock it, and avoids the danger caused by destruction. The application number is: CN202121494672.4, a prestressed anchor rod unlocking device, including an unlocking component and an upper pulling force component; the unlocking component includes an unlocking bracket, and a limiting rod for limiting the working anchor head used to lock the free end of the prestressed anchor rod; the limiting rod is connected to the unlocking bracket; the free end of the prestressed anchor rod passes through the unlocking bracket and is connected to the upper pulling force component. Ordinary prestressed anchor rod unlockers are prone to over-tightening at the connection during the unlocking process, which causes the problem of more troublesome separation and cannot be installed and used in different positions. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a prestressed anchor rod unlocker, which can realize the work of pushing and separating the connection points, avoiding the more troublesome problems during separation and coordinating with the placement for installation and positioning.

[0004] The technical solution is as follows: a prestressed anchor unlocker comprises an unlocker bracket and a waist beam, a jack is bolted on the upper inner side of the unlocker bracket, and a mounting support is bolted to the lower end of the unlocker bracket; an unlocking anchor head is bolted on the upper inner side of the jack; a prestressed main anchor is fixed inside the unlocking anchor head, and a working anchor head is connected below the prestressed main anchor; the working anchor head is fixed inside the upper inner side of the waist beam; the jack is connected to an oil pump through a pipeline; a movable driving bracket structure is supported on the outer wall of the jack, and an assembly and disassembly connecting plate structure is installed above the movable driving bracket structure; a clamping seat is bolted on the left and right sides of the upper inner wall of the unlocker bracket; the lower part of the working anchor head passes through the mounting support; a movable side support frame structure is supported on all sides of the mounting support, characterized in that the assembly and disassembly connecting plate structure comprises a movable main plate, and mounting grooves are provided on the front and rear sides of the left and right sides of the movable main plate; the front and rear parts of the left and right sides of the movable main plate are threadedly connected to operating screws; an arc-shaped fixing plate is supported in the mounting groove, and the arc-shaped fixing plate is movably connected to the operating screw.

[0005] Preferably, the movable driving bracket structure includes an assembly plate, a support seat is welded on the upper end of the assembly plate; an operating electric cylinder is bolted to the lower end of the support seat; and an assembly ring is bolted to the output shaft of the operating electric cylinder.

[0006] Preferably, prestressed main anchor rods are inserted into the installation groove inside the movable main plate.

[0007] Compared with the prior art, the application has the following beneficial effects:

[0008] In the application, the movable main disc and the mounting groove are arranged to be connected with the prestressed main anchor rod.

[0009] In the application, the arc-shaped fixed plate and the operating screw rod are arranged to fix the connected prestressed main anchor rod.

[0010] In the application, the assembly plate and the supporting seat are arranged to be supported by the operating cylinder.

[0011] In the application, when the prestressed main anchor rod is pulled and connected too tightly with the unlocked anchor head, the operating cylinder, the movable main disc and the arc-shaped fixed plate can push the prestressed main anchor rod to rise and facilitate the separation from the unlocked anchor head, thereby avoiding the problem that the connection is too tight and inconvenient to separate. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the application.

[0013] Figure 2 is a structural schematic diagram of the assembly and disassembly connecting disc structure of the application.

[0014] Figure 3 is a structural schematic diagram of the movable driving support structure of the application.

[0015] Figure 4 is a structural schematic diagram of the movable side supporting frame structure of the application.

[0016] In the drawings:

[0017] 1, unlocker support; 2, jack; 3, unlocked anchor head; 4, prestressed main anchor rod; 5, oil pump; 6, assembly and disassembly connecting disc structure; 61, movable main disc; 62, mounting groove; 63, arc-shaped fixed plate; 64, operating screw rod; 7, movable driving support structure; 71, assembly plate; 72, supporting seat; 73, operating cylinder; 74, assembly ring; 8, clamping seat; 9, working anchor head; 10, waist beam; 11, mounting support; 12, movable side supporting frame structure; 121, mounting fixed seat; 122, mounting bolt; 123, disassembly ring; 124, extension screw rod; 125, anti-skid clamping strip. DETAILED DESCRIPTION

[0018] The application will be further described below in combination with the drawings:

[0019] Embodiment:

[0020] As shown in the drawings Figure 1As shown in the figure, a prestressed anchor rod unlocking device includes an unlocking device support 1 and a waist beam 10, a jack 2 is bolted on the inside top of the unlocking device support 1, and a mounting support 11 is bolted at the lower end of the unlocking device support 1; an anchor head 3 is bolted on the inside top of the jack 2; a prestressed main anchor rod 4 is fixed inside the anchor head 3, and a working anchor head 9 is connected below the prestressed main anchor rod 4; the working anchor head 9 is fixed inside the upper part of the waist beam 10; the jack 2 is connected with an oil pump 5 through a pipeline; a movable driving support structure 7 is supported on the outer wall of the jack 2, and an assembled and disassembled connecting disc structure 6 is mounted above the movable driving support structure 7; a clamping seat 8 is bolted on the left and right sides of the inner wall of the unlocking device support 1; the working anchor head 9 passes through the mounting support 11; a movable side support frame structure 12 is supported around the inside of the mounting support 11.

[0021] As shown in the figure, Figure 2 In the above embodiment, specifically, the assembled and disassembled connecting disc structure 6 includes a movable main disc 61, mounting grooves 62 are formed on the front and back of the left and right sides of the inside of the movable main disc 61; operating screws 64 are threadedly connected to the front and back of the left and right sides of the inside of the movable main disc 61; rotating the operating screws 64 makes the arc-shaped fixed plate 63 move to clamp and fix the prestressed main anchor rod 4 inside the mounting groove 62; the arc-shaped fixed plate 63 is supported inside the mounting groove 62, and the arc-shaped fixed plate 63 is movably connected with the operating screws 64.

[0022] As shown in the figure, Figure 3 In the above embodiment, specifically, the movable driving support structure 7 includes an assembled plate 71, a support seat 72 is welded on the upper end of the assembled plate 71; an operating electric cylinder 73 is bolted on the lower end of the support seat 72; driving the operating electric cylinder 73 drives the prestressed main anchor rod 4 to move in cooperation with the movable main disc 61; an assembled ring 74 is bolted on the output shaft of the operating electric cylinder 73.

[0023] As shown in the figure, Figure 4 In the above embodiment, specifically, the movable side support frame structure 12 includes a mounting support seat 121, mounting screws 122 are threadedly connected inside the mounting support seat 121; rotating the mounting screws 122 to be installed and supported inside the waist beam 10; a disassembling ring 123 is welded on the right end of the mounting support seat 121; an extension screw 124 is bolted inside the disassembling ring 123; rotating the extension screw 124 outside the mounting support 11 drives the mounting support seat 121 to move to a suitable position for adjustment; an anti-slip clamping strip 125 is welded on the front inside the extension screw 124; tightening the anti-slip clamping strip 125 against the extension screw 124 by screwing the bolts inside the mounting support 11.

[0024] In the above embodiment, specifically, the arc-shaped fixed plate 63 cooperates with the inner wall of the mounting groove 62 to compress the prestressed main anchor rod 4, which facilitates the connection and use or disassembly and separation of the movable main disc 61 and the prestressed main anchor rod 4.

[0025] In the above embodiment, specifically, the assembly plate 71 is clamped on the front and rear sides of the outer wall of the jack 2 by bolts and nuts, facilitating the use of the operating cylinder 73 supported on the front and rear sides of the jack 2.

[0026] In the above embodiment, specifically, the assembly ring 74 on the output shaft of the operating cylinder 73 is welded on the front and rear sides of the middle part of the lower end of the movable main disc 61, facilitating the connection of the operating cylinder 73 with the movable main disc 61 and driving the use.

[0027] In the above embodiment, specifically, the assembly plate 71 is provided with an arc-shaped groove on the rear side, and a one-word anti-slip pattern is engraved on the inner wall of the groove to prevent slipping and protect the installation.

[0028] In the above embodiment, specifically, the recess is provided on the inner front side of the extension screw 124, and the anti-slip clamping strip 125 is supported in the recess to fix the connection with the mounting support 11.

[0029] In the above embodiment, specifically, the extension screw 124 is threadedly connected on the front and rear sides of the left and right sides inside the mounting support 11, and the extension screw 124 supports the mounting base 121, facilitating the adjustment of the position of the mounting base 121.

[0030] In the above embodiment, specifically, the mounting bolt 122 inside the mounting base 121 is threadedly connected in the waist beam 10, and the mounting support 11 is positioned and installed for support, thereby being able to adapt to the work of unlocking the prestressed main anchor rod 4 installed at different positions of the waist beam 10.

[0031] Working principle

[0032] In the prestressed main anchor rod 4, when the prestressed main anchor rod 4 is unlocked, the extension screw rod 124 outside the mounting support 11 is first rotated to drive the mounting base 121 to move to the appropriate position, then the bolt inside the mounting support 11 is screwed to tighten the anti-skid clamping strip 125 to fix the extension screw rod 124, then the mounting support 11 and the mounting base 121 are placed on the waist beam 10, so that the mounting bolt 122 is rotated into the waist beam 10 to be installed and supported, after the support is good, the unlocker support 1 is bolted on the mounting support 11, at the same time, the unlocker support 1 cooperates with the jack 2 and the unlocking anchor head 3 to be sleeved on the outer wall of the prestressed main anchor rod 4, after assembly, the bolt clamping seat 8 inside the unlocker support 1 is limited and the operation screw rod 64 is screwed to make the arc-shaped fixed plate 63 move to clamp and fix the prestressed main anchor rod 4 inside the mounting groove 62, after installation, the jack 2 and the operation cylinder 73 are driven to drive the unlocking anchor head 3 to move, at the same time, the prestressed main anchor rod 4 is driven to move, so that the locking piece in the working anchor head 9 is separated to complete the unlocking work, after unlocking, the jack 2 and the operation cylinder 73 are worked again to drive the unlocking anchor head 3 to reset, after resetting, the operation cylinder 73 is driven to cooperate with the movable main disc 61 to drive the prestressed main anchor rod 4 to move and separate from the locking piece inside the unlocking anchor head 3, so that the disassembly and unlocking work is completed.

[0033] The technical solutions of the present application or the technical solutions of the present application inspired by the skilled in the art, design similar technical solutions, and achieve the above technical effects, which are all within the scope of the present application.

Claims

1. A prestressed anchor rod unlocker, comprising an unlocker bracket (1) and a waist beam (10), wherein a jack (2) is bolted to the upper part of the unlocker bracket (1), and a mounting support (11) is bolted to the lower end of the unlocker bracket (1); an unlocking anchor head (3) is bolted to the upper part of the inner side of the jack (2); a prestressed main anchor rod (4) is fixed to the unlocking anchor head (3), and a working anchor head (9) is connected to the lower part of the prestressed main anchor rod (4); the working anchor head (9) is fixed to the In the upper part of the waist beam (10); the jack (2) is connected to the oil pump (5) through a pipeline; the outer wall of the jack (2) supports a movable driving bracket structure (7), and at the same time, an assembly and disassembly connection plate structure (6) is installed above the movable driving bracket structure (7); the left and right sides of the upper inner wall of the unlocker bracket (1) are bolted with a clamping seat (8); the lower part of the working anchor head (9) passes through the mounting support (11); the inner periphery of the mounting support (11) supports a movable side support frame structure (12), characterized in that, The assembly and disassembly connection plate structure (6) includes a movable main plate (61), and the front and rear sides of the left and right sides of the movable main plate (61) are both provided with mounting grooves (62); the front and rear parts of the left and right sides of the movable main plate (61) are both threadedly connected with operating screws (64); an arc-shaped fixed plate (63) is supported in the mounting groove (62), and the arc-shaped fixed plate (63) is movably connected to the operating screw (64); the movable driving bracket structure (7) includes an assembly plate (71), and a support seat (72) is welded on the upper end of the assembly plate (71). ); an operating electric cylinder (73) is bolted to the lower end of the supporting base (72); an assembly ring (74) is bolted to the output shaft of the operating electric cylinder (73); the movable side supporting frame structure (12) includes a mounting base (121), the mounting base (121) is internally threaded with a mounting bolt (122); a disassembly ring (123) is welded to the right end of the mounting base (121); an extension screw rod (124) is bolted to the interior of the disassembly ring (123); and an anti-slip clip (125) is welded to the front side of the interior of the extension screw rod (124).

2. The prestressed anchor bolt unlocker according to claim 1, characterized in that: A prestressed main anchor rod (4) is inserted into the mounting groove (62) inside the movable main plate (61).

3. The prestressed anchor bolt unlocker according to claim 1, characterized in that: The arc-shaped fixing plate (63) cooperates with the inner wall of the installation groove (62) to press the prestressed main anchor rod (4).

4. The prestressed anchor bolt unlocker according to claim 1, characterized in that: The assembly rings (74) on the output shaft of the operating electric cylinder (73) are welded to the front and rear sides of the middle part of the lower end of the movable main plate (61).

5. The prestressed anchor bolt unlocker according to claim 1, characterized in that: A groove is provided on the front side of the inner portion of the extension screw rod (124), and the anti-slip clip (125) is supported in the groove.

6. The prestressed anchor bolt unlocker according to claim 1, characterized in that: The extension screw rods (124) are all threadedly connected to the front and rear sides of the left and right sides of the interior of the mounting support (11), and the extension screw rods (124) support the mounting base (121).

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