A mortar anchor rod auxiliary positioning device

Abstract

This utility model discloses an auxiliary positioning device for mortar anchor bolts, including an anchor bolt body, an adjustment mechanism disposed on the anchor bolt body, a spearhead disposed at one end of the anchor bolt body, and a pad connected to the other end of the anchor bolt body. The adjustment mechanism includes a disc, a threaded hole disposed in the center of the disc, the threaded hole being adapted to the anchor bolt body, and adjustment holes and mortar passage holes spaced apart around the disc. This utility model can improve the positioning accuracy of mortar anchor bolts by providing auxiliary positioning through an adjustable positioning device.

Description

Technical Field

[0001] This utility model belongs to the field of construction equipment technology, and specifically relates to a mortar anchor bolt auxiliary positioning device. Background Technology

[0002] In blocky or fractured rock formations, anchor bolts can suspend unstable rocks on stable rock masses outside the loosened zone, preventing rock fragments from falling. In soft rock formations, arranging prestressed anchor bolts in a certain way can form a load-bearing arch in the surrounding rock, acting as a support for the fractured rock mass. This is called a mortar anchor bolt.

[0003] In existing technologies, there are two main methods for constructing mortar anchors: one is to drill a hole first, then place the anchor rod into the hole, and then grout; the other is to drill a hole, grout first, and then place the anchor rod into the hole. In actual construction, it has been found that regardless of whether the anchor rod is placed first and then grouted, or vice versa, the anchor rod is prone to shifting after entering the hole, causing it to stick close to the hole wall and preventing the construction requirements from being met. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary positioning device for mortar anchors, which improves the positioning accuracy of mortar anchors by providing an adjustable positioning device for auxiliary positioning.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A mortar anchor bolt auxiliary positioning device includes an anchor bolt body, an adjustment mechanism disposed on the anchor bolt body, a spearhead disposed at one end of the anchor bolt body, and a pad connected to the other end of the anchor bolt body; the adjustment mechanism includes a disc, a threaded hole disposed in the center of the disc, the threaded hole being adapted to the anchor bolt body, and adjustment holes and mortar passage holes being provided at intervals around the disc.

[0006] Furthermore, the anchor rod body is a threaded steel bar.

[0007] Furthermore, the pad is threadedly connected to the anchor bolt body.

[0008] Furthermore, the pad is provided with threaded through holes around its perimeter that are adapted to the size of the adjustment holes on the adjustment mechanism.

[0009] Furthermore, the adjustment hole is a blind hole.

[0010] Furthermore, an adjusting threaded rod is connected between the pad and the adjusting mechanism, and a nut is welded onto the adjusting threaded rod.

[0011] Compared with the prior art, the advantages of this utility model are: the auxiliary positioning devices adopted by this utility model are all detachable and assembleable, and the assembly method is simple. No additional installation equipment is required on site, and the overall structure is simple and practical.

[0012] Secondly, the auxiliary positioning device provided by this utility model is also equipped with an adjustable disc. By screwing a bolt into the adjustment hole of the disc and continuing to press it against the bottom of the disc, the position of the anchor rod can be finely adjusted by changing the force, so as to avoid the anchor rod shifting after being driven in, which would cause the construction effect to be unsatisfactory. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the mortar anchor bolt auxiliary positioning device provided by this utility model.

[0015] Figure 2 This is a schematic diagram of the disc structure of the mortar anchor bolt auxiliary positioning device provided by this utility model.

[0016] Attached reference numerals: 1-Anchor bolt body, 2-Plate, 3-Disc, 4-Spear head, 5-Threaded hole, 6-Mortar passage hole, 7-Adjustment hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0021] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] like Figures 1-2 As shown, a mortar anchor bolt auxiliary positioning device includes an anchor bolt body 1, an adjustment mechanism disposed on the anchor bolt body 1, a spearhead 4 disposed at one end of the anchor bolt body 1, and a pad 2 connected to the other end of the anchor bolt body 1; the adjustment mechanism includes a disc 3, a threaded hole 5 disposed in the middle of the disc 3, the threaded hole 5 being adapted to the anchor bolt body 1, and adjustment holes 7 and mortar passage holes 6 being provided at intervals around the disc 3.

[0025] Compared to existing technologies, existing mortar anchor bolts primarily involve drilling holes according to design requirements, preparing mortar, and injecting the prepared mortar into the drilled holes using a grouting machine. Anchor bolts are then driven into the mortar-filled holes to achieve the desired construction. During the anchor bolt driving process, manual hammering is used to slowly drive the anchor bolt into the designated position. However, uneven stress during this process can cause the anchor bolt to shift during driving, resulting in it being too close to the hole wall and failing to achieve the desired construction outcome. In this invention, an auxiliary positioning device is installed on the anchor bolt. Furthermore, this auxiliary positioning device requires no additional connecting parts; it directly connects to the anchor bolt via a threaded hole 5 that is compatible with the anchor bolt. During the anchor bolt driving process, the pad 2 set at the tail of the anchor bolt is connected to the adjusting disc 3 in the middle of the anchor bolt through the screw. By continuing to screw in, the force on the anchor bolt in a certain direction is changed, and the direction of the anchor bolt is slightly adjusted to ensure that the anchor bolt remains in the center during the driving process and to avoid the anchor bolt deviating.

[0026] The anchor rod body 1 is a threaded steel rod. The pad 2 is threadedly connected to the anchor rod body 1. The pad 2 has threaded through holes around its perimeter that are adapted to the size of the adjustment holes 7 on the adjustment mechanism. The adjustment holes 7 are blind holes. An adjusting threaded rod is connected between the pad 2 and the adjustment mechanism, and a nut is welded onto the adjusting threaded rod.

[0027] In practical use, the auxiliary positioning device provided by this utility model has multiple adjustment holes 7 and mortar passage holes 6 on the disc 3. Preferably, there are four mortar passage holes 6 and four adjustment holes 7, which are evenly arranged in an array along the center of the disc 3. The mortar passage hole 6 is semi-circular and close to the circumference of the disc 3 to allow mortar to flow when the anchor rod is driven in.

[0028] First, drilling is required at designated locations according to design requirements. After drilling, the debris and other debris inside the holes are cleaned, and mortar is prepared. Grouting is then performed after mortar preparation. Immediately after grouting, the anchor bolts are driven in. Before driving in, preparations are made by installing the auxiliary positioning device provided by this invention onto the anchor bolt. One person holds a hammer, and another holds the anchor bolt at the hole opening to drive it in. During the operation, if the anchor bolt is found to have shifted, the nut welded to the threaded rod adjusting the direction of the shift can be turned with a wrench to continue screwing the threaded rod in that direction, causing its tail to press against the adjusting hole 7, and applying force to the disc 3 to straighten the anchor bolt and prevent further shifting during driving.

[0029] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A mortar anchor rod auxiliary positioning device, characterized by: It includes an anchor body (1), an adjustment mechanism set on the anchor body (1), a spearhead (4) set at one end of the anchor body (1), and a pad (2) connected to the other end of the anchor body (1); the adjustment mechanism includes a disc (3), a threaded hole (5) set in the middle of the disc (3), and the threaded hole (5) is adapted to the anchor body (1), and adjustment holes (7) and mortar passage holes (6) are provided at intervals around the disc (3).

2. Mortar bolt auxiliary positioning device according to claim 1, characterized in that: The anchor body (1) is a threaded steel bar.

3. A mortar bolting aid positioning device according to claim 1, characterised in that: The pad (2) is threadedly connected to the anchor body (1).

4. A mortar bolting aid positioning device according to claim 1, characterised in that: The pad (2) is provided with threaded through holes around its perimeter that are adapted to the size of the adjustment holes (7) on the adjustment mechanism.

5. The mortar bolting aid positioning device according to claim 1, wherein: The adjustment hole (7) is a blind hole.

6. The mortar bolting aid positioning device according to claim 1, wherein: An adjusting threaded rod is connected between the pad (2) and the adjusting mechanism, and a nut is welded onto the adjusting threaded rod.

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