Prestressed anchor rod for engineering construction

Abstract

The utility model relates to the technical field of building engineering, disclose a prestressed anchor rod for engineering building, including the anchor rod body, the right -hand member of anchor rod body is fixedly connected with the bolt, the outside movable joint of bolt has the backing plate, and the nut is threadedly connected with the right side of backing plate outside the outside of bolt, the outside of anchor rod body is provided with the fixed establishment, the inside movable penetration connection of backing plate is below the anchor rod body and has the grouting pipe, the inside of grouting pipe is provided with the plugging mechanism, the utility model discloses be provided with the plugging mechanism, and the blocking piece in plugging mechanism blocks the grouting pipe's slurry outlet, avoids in the process of the anchor rod body into the anchor hole inside, and the grouting pipe is blocked by the impurity in the anchor hole, rotates the rotating rod in plugging mechanism and drives the connecting rod rotation, can drive two locating plates to be close to each other to drive two locating blocks away from the inner wall of grouting pipe, and the plugging mechanism can be repeatedly used to make the plugging mechanism can be disassembled, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of construction engineering, and specifically relates to a prestressed anchor rod for engineering construction. BACKGROUND

[0002] The prestressed anchor rod is a rod member for improving the strength and rigidity of a concrete structure through prestressed technology, which mainly comprises an anchor head, a rod body and a backing plate, and exerts a certain pre-stress on surrounding rock or soil through the anchoring force generated by the anchor head to actively reinforce the surrounding rock or soil.

[0003] In actual operation, the grouting pipe opening is usually not sealed, and the grouting pipe is easily blocked during feeding. Therefore, the staff increases the grouting pressure of the grouting pipe through the grouting equipment. In this process, the grouting pipe body may be broken, and the grouting pressure may tear the blockage in the grouting pipe, thereby affecting the grouting effect.

[0004] A kind of expansion prestressed anchor rod is disclosed in Chinese patent (authorized publication number CN219731985U), the patent technology is sealed to grouting pipe opening by dust cover, then the elastic force is applied to clamping plate by elastic component, let clamping plate and grouting pipe inside be in close contact, to achieve the purpose of closing grouting pipe opening, in this way, when the anchor rod main body is sent into the anchor hole, grouting pipe can avoid entering impurities and being blocked, facilitate the construction of staff, ensure the normal grouting effect of anchor hole;

[0005] However, it has certain disadvantages: the entire sealing mechanism is subjected to the pressure of slurry and will be left in the anchor hole after being separated from the grouting pipe, and cannot be taken out for reuse, so each grouting pipe needs to be equipped with a sealing mechanism, increasing the use cost. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a prestressed anchor rod for engineering construction to solve the problems in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme.

[0008] A prestressed anchor rod for engineering construction, comprising an anchor rod body, a bolt is fixedly connected to the right end of the anchor rod body, a backing plate is movably connected to the outside of the bolt, a nut is threadedly connected to the right side of the backing plate outside the bolt, a fixing mechanism is arranged on the outside of the anchor rod body, and a grouting pipe is movably and penetratively connected to the inside of the backing plate below the anchor rod body.

[0009] The inside of the grouting pipe is provided with a plugging mechanism, the plugging mechanism comprises a supporting sleeve, a supporting plate is fixedly connected in the inside of the supporting sleeve, supporting rods are fixedly connected to the left side surface of the supporting plate at both ends, the left ends of the two supporting rods are fixedly connected with a plugging block, a rotating rod is rotatably connected at the inside center position of the supporting plate, a first gear is fixedly connected to the left end of the rotating rod, and a positioning mechanism is arranged between the two supporting rods on the left side surface of the supporting plate.

[0010] As a further scheme of the utility model: the fixing mechanism comprises a fixing sleeve, and the upper and lower ends of the fixing sleeve are both connected with fixing bolts through threads.

[0011] As a further scheme of the utility model: the positioning mechanism comprises a connecting rod, connecting blocks are rotatably connected to the front and back ends of the connecting rod, a second gear is fixedly connected to the outside of the connecting rod, positioning plates are threadedly connected to the front and back sides of the second gear on the outside of the connecting rod, and positioning blocks are fixedly connected to the left end of the positioning plates.

[0012] As a further scheme of the utility model: the supporting sleeve is located in the inside of the right end of the grouting pipe, and the plugging block is located in the inside of the left end of the grouting pipe.

[0013] As a further scheme of the utility model: the fixing sleeve is located outside the anchor rod body and the grouting pipe, and the two fixing bolts are respectively attached to the anchor rod body and the grouting pipe.

[0014] As a further scheme of the utility model: the right end of the connecting block is fixedly connected to the left side surface of the supporting plate, the first gear is meshingly connected to the second gear, the right end of the positioning plate is slidingly connected to the left side surface of the supporting plate, and the two positioning blocks are respectively attached to the inside front and back side surfaces of the grouting pipe.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a plugging mechanism, the plugging block in the plugging mechanism blocks the grouting pipe's grouting port, avoids the process of the anchor rod body being inserted into the anchor hole, and the grouting pipe is blocked by the impurities in the anchor hole, the rotating rod in the plugging mechanism is rotated through the first gear and the second gear to drive the connecting rod to rotate, can drive two positioning plates to be close to each other, thereby driving two positioning blocks to be away from the inner wall of the grouting pipe, the plugging mechanism can be repeatedly used, and the cost is reduced. ACCURACY OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of prestressed anchor rod for engineering construction;

[0018] Fig. 2 It is a partial front view of prestressed anchor rod for engineering construction.

[0019] Fig. 3 It is a structure diagram of a fixing mechanism in a prestressed anchor rod for engineering construction;

[0020] Fig. 4 It is a structure diagram of a grouting pipe in a prestressed anchor rod for engineering construction;

[0021] Fig. 5 It is a structure diagram of a plugging mechanism in a prestressed anchor rod for engineering construction;

[0022] Fig. 6 It is a structure diagram of a positioning mechanism in a prestressed anchor rod for engineering construction.

[0023] In the figure: 1, anchor rod body; 2, bolt; 3, pad plate; 4, nut; 5, fixing mechanism; 6, fixing sleeve; 7, fixing bolt; 8, grouting pipe; 9, plugging mechanism; 10, support sleeve; 11, support plate; 12, support rod; 13, block; 14, rotating rod; 15, first gear; 16, positioning mechanism; 17, connecting rod; 18, connecting block; 19, second gear; 20, positioning plate; 21, positioning block. DETAILED DESCRIPTION

[0024] Please refer to Figs. 1-4 In the embodiment of the utility model, a prestressed anchor rod for engineering construction, including anchor rod body 1, the right end of anchor rod body 1 is fixedly connected with bolt 2, the outside of bolt 2 is movably connected with pad plate 3, and the outside of bolt 2 is movably connected with nut 4 on the right side of pad plate 3, the outside of anchor rod body 1 is provided with fixing mechanism 5, fixing mechanism 5 includes fixing sleeve 6, the upper and lower ends of fixing sleeve 6 are movably connected with fixing bolt 7, the inside of pad plate 3 is movably connected with grouting pipe 8 below anchor rod body 1, fixing sleeve 6 is located outside anchor rod body 1 and grouting pipe 8, and the upper and lower fixing bolts 7 are respectively attached to anchor rod body 1 and grouting pipe 8;

[0025] Pad plate 3 is used for fixing in anchor hole orifice, and the position of anchor rod body 1 is finely adjusted by nut 4.

[0026] Grouting pipe 8 is used for injecting grout into anchor hole.

[0027] In Fig. 1 , Figs. 4-6The inside of the grouting pipe 8 is provided with a plugging mechanism 9, the plugging mechanism 9 comprises a supporting sleeve 10, the supporting sleeve 10 is located in the inside of the right end of the grouting pipe 8, the inside of the supporting sleeve 10 is fixedly connected with a supporting plate 11, the left side surface of the supporting plate 11 is fixedly connected with supporting rods 12 at the upper end and the lower end, the left ends of the two supporting rods 12 are fixedly connected with a plugging block 13, the plugging block 13 is located in the inside of the left end of the grouting pipe 8, the inside of the supporting plate 11 is rotatably connected with a rotating rod 14 at the central position, the left end of the rotating rod 14 is fixedly connected with a first gear 15, the left side surface of the supporting plate 11 is provided with a positioning mechanism 16 between the two supporting rods 12, the positioning mechanism 16 comprises a connecting rod 17, the front end and the rear end of the connecting rod 17 are rotatably connected with connecting blocks 18, the right end of the connecting block 18 is fixedly connected to the left side surface of the supporting plate 11, the outside of the connecting rod 17 is fixedly connected with a second gear 19, the first gear 15 is connected with the second gear 19 in meshing mode, the outside of the connecting rod 17 is threadedly connected with positioning plates 20 at the front side and the rear side of the second gear 19, the right end of the positioning plate 20 is slidably connected to the left side surface of the supporting plate 11, the left end of the positioning plate 20 is fixedly connected with positioning blocks 21, the two positioning blocks 21 are respectively attached to the inner side surfaces of the front side and the rear side of the grouting pipe 8;

[0028] The threads of the two positioning plates 20 are opposite, that is, when the connecting rod 17 is rotated, the two positioning plates 20 are simultaneously moved to the middle or are respectively moved to the two sides;

[0029] By abutting the two positioning blocks 21 against the inner wall of the grouting pipe 8, the positioning mechanism 16 can be fixed in the inside of the grouting pipe 8, and by plugging the left end of the grouting pipe 8 with the plugging block 13, the impurities in the anchor hole can be prevented from entering the grouting pipe 8 and causing the grouting pipe 8 to be blocked during the process that the grouting pipe 8 extends into the inside of the anchor hole;

[0030] The first gear 15 and the second gear 19 are bevel gears, and the rotating rod 14 can drive the connecting rod 17 to rotate.

[0031] The working principle of the utility model is as follows: in use, the staff member extends the anchor rod body 1 into the drilled anchor hole, adjusts the relative position of the anchor rod body 1 and the backing plate 3 by rotating the nut 4, fixes the backing plate 3 and the anchor hole orifice together after the adjustment; then, the connecting rod 17 is rotated by rotating the rotating rod 14, the first gear 15 and the second gear 19, the two positioning plates 20 are simultaneously moved to the middle, thereby driving the positioning blocks 21 to move away from the inner wall of the grouting pipe 8, at this time, the plugging mechanism 9 can be disassembled from the grouting pipe 8; finally, the grout is injected into the anchor hole through the grouting pipe 8, thereby completing the installation of the prestressed anchor rod.

[0032] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0033] In the description of the present application, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A prestressed anchor rod for engineering construction, comprising an anchor rod body (1), a bolt (2) fixedly connected to the right end of the anchor rod body (1), a backing plate (3) movably connected to the outside of the bolt (2), and a nut (4) threadedly connected to the right side of the backing plate (3) outside the bolt (2), a fixing mechanism (5) arranged on the outside of the anchor rod body (1), and a grouting pipe (8) movably penetratingly connected to the inside of the backing plate (3) below the anchor rod body (1). characterized in that An occlusion mechanism (9) is arranged in the inside of the grouting pipe (8), the occlusion mechanism (9) comprising a support sleeve (10), a support plate (11) fixedly connected to the inside of the support sleeve (10), support rods (12) fixedly connected to the left side surface of the support plate (11) at both the upper and lower ends, a blocking block (13) fixedly connected to the left ends of the two support rods (12), a rotating rod (14) penetratingly and rotatably connected to the inside of the support plate (11) at the central position, a first gear (15) fixedly connected to the left end of the rotating rod (14), and a positioning mechanism (16) arranged on the left side surface of the support plate (11) between the two support rods (12).

2. A prestressed anchor rod for engineering construction according to claim 1, characterized in that, The fixing mechanism (5) comprises a fixing sleeve (6), and fixing pegs (7) are threadedly connected to both the upper and lower ends of the fixing sleeve (6).

3. The prestressed anchor rod for engineering construction according to claim 1, characterized in that, The positioning mechanism (16) comprises a connecting rod (17), connecting blocks (18) rotatably connected to both the front and rear ends of the connecting rod (17), a second gear (19) fixedly connected to the outside of the connecting rod (17), positioning plates (20) threadedly connected to both the front and rear sides of the second gear (19) outside the connecting rod (17), and positioning blocks (21) fixedly connected to the left ends of the positioning plates (20).

4. The prestressed anchor rod for engineering construction according to claim 1, characterized in that, The support sleeve (10) is arranged in the inside of the right end of the grouting pipe (8), and the blocking block (13) is arranged in the inside of the left end of the grouting pipe (8).

5. The prestressed anchor rod for engineering construction according to claim 2, characterized in that, The fixing sleeve (6) is arranged on the outside of the anchor rod body (1) and the grouting pipe (8), and the two fixing pegs (7) are respectively attached to the anchor rod body (1) and the grouting pipe (8).

6. The pre-stressed anchor rod for engineering construction according to claim 3, characterized in that, The right end of the connecting block (18) is fixedly connected to the left side surface of the support plate (11), the first gear (15) is meshingly connected to the second gear (19), the right end of the positioning plate (20) is slidingly connected to the left side surface of the support plate (11), and the two positioning blocks (21) are respectively attached to the inside of the front and rear side surfaces of the grouting pipe (8).

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