Prestressed anchor rod supporting structure

Abstract

The utility model provides a pre-stressed anchor rod supporting structure, which relates to the technical field of supporting structures and comprises a pre-stressed anchor rod body, a mounting groove is arranged at the center of the pre-stressed anchor rod body, and discharge holes are arranged on the surface of the pre-stressed anchor rod body and positioned on two sides of the mounting groove. When the installation of the pre-stressed anchor rod body in the ground is loosened, the extrusion rod is rotationally taken out from the installation groove, cement mortar is poured into the installation groove, then the extrusion rod is installed in the installation groove again, and the extrusion rod is continuously extruded downwards. The cement mortar in the mounting groove is forced to be extruded outwards from the discharging hole, the gap between the pre-stressed anchor rod body and the mounting ground is filled with the cement mortar, after the cement mortar is solidified, the pre-stressed anchor rod body can be stably mounted in the ground again, and the supporting effect of the pre-stressed anchor rod body in the ground is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a supporting structure technical field especially relates to a prestressed anchor rod supporting structure. BACKGROUND

[0002] The prestressed anchor rod supporting structure is a kind of technology that prestressed anchor rod is installed in soil body, load is transferred to deeper stratum, and it is stabilized by supporting structure.

[0003] But in prior art, the existing prestressed anchor rod can appear loose condition after being installed into ground for a period of time due to various reasons, and most prestressed anchor rods lack simple and effective reinforcing means for itself in ground when loosening, which is not conducive to the long-term support of prestressed anchor rod in ground. UTILITY MODEL CONTENT

[0004] The utility model discloses a prestressed anchor rod supporting structure, which can solve the problem that most prestressed anchor rods lack simple and effective reinforcing means for itself in ground when loosening, and is conducive to the long-term support of prestressed anchor rod in ground.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prestressed anchor rod supporting structure, comprising a prestressed anchor rod body, a mounting groove is formed in the center of the prestressed anchor rod body, and a discharge hole is formed on the surface of the prestressed anchor rod body on both sides of the mounting groove, an extrusion rod is connected in the mounting groove, a helical thread is formed on the outer surface of the upper end of the extrusion rod, and the helical thread is screw-connected on the surface of the mounting groove.

[0006] As a preferred embodiment, the discharge hole is arranged in an equidistant array along the extension direction of the prestressed anchor rod body.

[0007] As a preferred embodiment, the outer surface of one end of the extrusion rod is fixedly connected with a sealing rubber ring.

[0008] As a preferred embodiment, one end of the extrusion rod is fixedly connected with a torsion disc.

[0009] Compared with the prior art, the utility model has the advantages and positive effects that:

[0010] The utility model discloses, when the prestressed anchor rod body installation appears loose in the ground, rotates and takes out extruding rod from the installation groove, pours some cement mortar into the installation groove after, installs the extruding rod into the installation groove again after, and lets it continue to extrude downward, forces the cement mortar in the installation groove to extrude outward from the discharge hole, lets the cement mortar fill the gap between the prestressed anchor rod body and the installation ground, after the cement mortar solidification, makes the prestressed anchor rod body can be installed stably in the ground again, improves its support effect in the ground. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 The utility model provides a whole structure schematic diagram of prestressed anchor rod support structure;

[0012] Fig. 2 The utility model provides a whole structure schematic diagram of prestressed anchor rod support structure;

[0013] Fig. 3 The utility model provides a whole structure schematic diagram of prestressed anchor rod support structure;

[0014] LEGEND:

[0015] 1, prestressed anchor rod body;2, installation groove;3, discharge hole;4, extruding rod;5, sealing rubber ring;6, spiral thread;7, twist disc. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all belong to the range of protection of the utility model.

[0017] Embodiment 1

[0018] As Figs. 1-3As shown, the utility model provides a technical scheme: a prestressed anchor rod supporting structure, including prestressed anchor rod body 1, the centre of prestressed anchor rod body 1 is equipped with installation groove 2, when the installation of prestressed anchor rod body 1 is loose in the ground, after the extrusion rod 4 is taken out from installation groove 2, can pour cement mortar into installation groove 2, let cement mortar can smoothly send into the ground, and the surface of prestressed anchor rod body 1 is located the both sides of installation groove 2 and is equipped with discharge hole 3, the installation groove 2 is connected with extrusion rod 4, when filling cement mortar in installation groove 2, let extrusion rod 4 continuously press down in discharge hole 3, force cement mortar in installation groove 2 to extrude from discharge hole 3, let cement mortar fill the gap between prestressed anchor rod body 1 and installation ground, after cement mortar solidification, make prestressed anchor rod body 1 can be installed stably in the ground again, the outer surface of extrusion rod 4 upper end is provided with helical thread 6, and helical thread 6 is screw connected on the surface of installation groove 2, improve the stability of extrusion rod 4 insertion into installation groove 2 and connect with the help of helical thread 6.

[0019] Example 2

[0020] As Figs. 1-3 Shown, discharge hole 3 is equidistant array along the extension direction of prestressed anchor rod body 1 and is provided with a plurality of, by let the quantity of discharge hole 3 is provided with multiple, reach the effect that cement mortar in installation groove 2 is uniformly discharged, the outer surface of one end of extrusion rod 4 is fixedly connected with sealing rubber ring 5, improve the adhesion of one end of extrusion rod 4 and the surface of installation groove 2 with the help of sealing rubber ring 5, effectively avoid the cement mortar from the gap between extrusion rod 4 and installation groove 2 and flow upwards when extrusion rod 4 extrudes cement mortar in installation groove 2, from one end of extrusion rod 4 fixedly connected with twist disc 7, by hand in twist disc 7, facilitate the extrusion rod 4 in installation groove 2 and press down operation, simultaneously by rotating twist disc 7, conveniently drive extrusion rod 4 and rotate, so as to facilitate the screw connection of helical thread 6 in installation groove 2.

[0021] Working principle:

[0022] As Figs. 1-3As shown, in use, the user first rotates the extrusion rod 4 by twisting the twisting disc 7, during which the helical thread 6 gradually disengages from the threaded connection in the mounting groove 2, and the extrusion rod 4 is moved upward while rotating, when the helical thread 6 disengages from the threaded connection of the mounting groove 2, it can be directly pulled out from the mounting groove 2, when the extrusion rod 4 is taken out from the mounting groove 2, the cement mortar is poured into the mounting groove 2, then the extrusion rod 4 is inserted into the mounting groove 2 again, and the twisting disc 7 is pressed by hand, so that the extrusion rod 4 continuously extrudes downward in the mounting groove 2, forcing the cement mortar in the mounting groove 2 to extrude outward from the discharge hole 3, so that the cement mortar fills the gap between the prestressed anchor rod body 1 and the installation ground, then the extrusion rod 4 is rotated by rotating the twisting disc 7, so that the helical thread 6 is rethreaded in the mounting groove 2, the stability of the extrusion rod 4 inserted in the mounting groove 2 is maintained, with the passage of time, the cement mortar gradually solidifies in the ground, and then the prestressed anchor rod body 1 can be stably installed in the ground.

[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the present application.

Claims

1. A prestressed rock bolt support structure comprising a prestressed rock bolt body (1), characterized in that: The prestressed anchor rod body (1) is provided with a mounting groove (2) at the center, and the surface of the prestressed anchor rod body (1) is provided with a discharge hole (3) on both sides of the mounting groove (2), the mounting groove (2) is connected with an extrusion rod (4), the outer surface of the upper end of the extrusion rod (4) is provided with a spiral thread (6), and the spiral thread (6) is screwed on the surface of the mounting groove (2).

2. A pre-stressed rock bolt support structure according to claim 1, characterised in that: The discharge hole (3) is provided with a plurality of discharge holes (3) arranged equidistantly along the extension direction of the prestressed anchor rod body (1).

3. A pre-stressed rock bolt support structure according to claim 1, characterised in that: The outer surface of one end of the extrusion rod (4) is fixedly connected with a sealing rubber ring (5).

4. A pre-stressed rock bolt support structure according to claim 1, characterised in that: One end of the extrusion rod (4) is fixedly connected with a torsion disc (7).

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