An adjustable-angle anchor

Abstract

The present invention discloses an adjustable-angle anchor, which includes a combined ring for support, a fixed anchor, an inner locking ring and a mating locking ring for connection and cooperation. One end of the combined ring is provided with the fixed anchor. A hollow groove is formed inside the combined ring. The inner locking ring is arranged on the inner bottom surface of the hollow groove. The fixed anchor and the inner locking ring are connected and cooperated through the mating locking ring. Six wedge-shaped holes are formed through the fixed anchor. The present invention utilizes the included angle between the combined ring and the fixed anchor, so that the angle can be conveniently adjusted to adapt to the connection between the construction surface and the cable, thereby ensuring the prestress. The device selects a suitable combined ring and fixed anchor according to the overall data of the construction site, so that only one format of device needs to be selected in the same site, improving the use efficiency and economy of the device.

Description

Technical Field

[0001] The invention relates to the field of anchor cable support, in particular to an angle-adjustable anchor. Background Art

[0002] Cable anchor technology is a means of surrounding rock reinforcement introduced into my country in the 1960s. As the cable anchor rod body adopts flexible and bendable steel strands, it has the advantages of easy installation, large anchoring depth, high bearing capacity and active reinforcement of surrounding rock. Cable anchors have been widely used in the roof support of coal mine tunnels in my country. Cable anchors play an irreplaceable role in the support of soft rock tunnels under complex geological conditions such as large-section intersections and fault fracture zones. With the gradual depletion of shallow resources, mine mining continues to develop deeper, resulting in a large number of deep well soft rock problems. In 1996-1997, my country introduced the cable anchor support technology and carried out further development based on my country's coal mine geology and production conditions. Technologies such as extended and full-length resin-anchored high-strength threaded steel anchor rods and small-diameter resin-anchored prestressed anchor cables have been widely recognized and widely promoted and applied, becoming the dominant support technology for coal mine tunnels in my country. However, due to the increasing difficulty of supporting soft rock and broken tunnels in thousand-meter deep wells, insufficient support strength has led to accidents such as roof subsidence, delamination, and roof collapse. Hollow grouting anchor cable support technology has been widely used.

[0003] In the current field of anchor cable support, most of them are fixed at fixed angles. However, this adjustment method has a fixed angle. There may be multiple angles in the same anchor cable support project design plan. Therefore, it is necessary to customize anchors with multiple inclination angles separately. Some anchors with smaller inclination angles are relatively rare. If several such anchors with smaller inclination angles are produced separately, it will be troublesome and difficult to order. Summary of the invention

[0004] The purpose of the present invention is to provide an angle-adjustable anchor in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An adjustable angle anchor comprises a combination ring and a fixed anchor for support, an inner locking ring and a matching locking ring for connection and matching, wherein the fixed anchor is arranged at one end of the combination ring, a hollow groove is formed on the inner side of the combination ring, the inner locking ring is arranged on the inner bottom surface of the hollow groove, the fixed anchor and the inner locking ring are connected and matched through the matching locking ring, and six wedge-shaped holes are formed through the fixed anchor;

[0007] The contact surface between the combined ring and the fixed anchor is a rough surface, and angle scale lines are arranged on the rough surface;

[0008] The contact surface between the combined ring and the mating locking ring is an inclined plane.

[0009] Preferably, the inner locking ring is a semi-circular ring, and the arc span is 179 degrees.

[0010] With such a setting, the inner locking ring is used to cooperate with the mating locking ring so that the combined ring and the fixed anchor can be locked.

[0011] Preferably, the inclined plane angle between the combined ring and the fixed anchor is obtained by calculation according to the construction surface, and the angle range is between 0 degrees and 50 degrees.

[0012] With such a setting, for example, the inclined plane is 30 degrees, and the included angle between the combined ring and the fixed anchor can be changed infinitely between 0 degrees and 50 degrees, so as to adapt to the connection between the construction surface and the cable anchor, thereby ensuring the prestress.

[0013] Preferably, the diameter of the combined ring is larger than the diameter of the fixed anchor.

[0014] With such a setting, it is convenient for installation, fixation and viewing of the angle.

[0015] Preferably, the combined ring, the hollow groove and the inner locking ring are integrally formed, and the mating locking ring, the fixed anchor and the wedge-shaped hole are integrally formed.

[0016] With such a setting, the integral formation ensures stability.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By using the included angle between the combined ring and the fixed anchor, the angle can be conveniently adjusted, so as to adapt to the connection between the construction surface and the cable anchor, thereby ensuring the prestress;

[0019] 2. The device selects appropriate combined rings and fixed anchors according to the overall data of the construction site, so that only one format of device needs to be selected in the same site, improving the use efficiency and economy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is the first structural schematic diagram of an adjustable-angle anchor of the present invention;

[0022] Figure 2 It is the second structural schematic diagram of an adjustable-angle anchor described in the present invention;

[0023] Figure 3 It is the first structural schematic diagram of the fixed anchor of an adjustable-angle anchor described in the present invention;

[0024] Figure 4 It is the second structural schematic diagram of the fixed anchor of an adjustable-angle anchor described in the present invention;

[0025] Figure 5 It is the structural schematic diagram of the combination ring of an adjustable-angle anchor described in the present invention;

[0026] Figure 6 It is the internal structural schematic diagram of an adjustable-angle anchor described in the present invention;

[0027] Figure 7 It is the structural schematic diagram of the second state of an adjustable-angle anchor described in the present invention;

[0028] Figure 8 It is the structural schematic diagram of the third state of an adjustable-angle anchor described in the present invention.

[0029] The description of the reference numerals is as follows:

[0030] 1. Combination ring; 2. Hollow groove; 3. Inner locking ring; 4. Matching locking ring; 5. Fixed anchor; 6. Wedge-shaped hole. Detailed implementation manners

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0033] The present invention will be further described below with reference to the accompanying drawings: Embodiment

[0034] As Figures 1 - 8 shown, an adjustable-angle anchor includes a combination ring 1 for support, a fixed anchor 5, an inner locking ring 3 and a mating locking ring 4 for connecting and cooperating. A fixed anchor 5 is provided at one end of the combination ring 1. A hollow groove 2 is formed inside the combination ring 1. An inner locking ring 3 is provided on the inner bottom surface of the hollow groove 2. The fixed anchor 5 and the inner locking ring 3 are connected and cooperated through the mating locking ring 4. Six wedge-shaped holes 6 are formed through the fixed anchor 5.

[0035] The contact surface between the combination ring 1 and the fixed anchor 5 is a rough surface, and angle scale lines are provided on the rough surface.

[0036] The contact surface between the combination ring 1 and the mating locking ring 4 is an inclined surface.

[0037] Preferably: The inner locking ring 3 is a semi-circular ring with an arc span of 179 degrees. The inner locking ring 3 is used to cooperate with the mating locking ring 4 so that the combination ring 1 and the fixed anchor 5 can be locked. The inclined surface angle between the combination ring 1 and the fixed anchor 5 is obtained according to the construction surface calculation, and the angle range is between 0 degrees and 50 degrees. For example, the inclined surface is 30 degrees, and the included angle between the combination ring 1 and the fixed anchor 5 can be changed infinitely between 0 degrees and 50 degrees, so as to adapt to the connection between the construction surface and the cable anchor, thereby ensuring prestress. The diameter of the combination ring 1 is larger than that of the fixed anchor 5, which facilitates installation, fixation and angle viewing. The combination ring 1, the hollow groove 2 and the inner locking ring 3 are integrally formed, and the mating locking ring 4, the fixed anchor 5 and the wedge-shaped holes 6 are integrally formed, and the integral formation ensures stability.

[0038] Working principle: After combining the combination ring 1 and the fixed anchor 5 into two parts, the inclination angle is adjusted. The installation and adjustment are divided into two parts:

[0039] 1. Determine the cable anchor support angle in the cable anchor design scheme, and point the arrow on the fixed anchor 5 to the scale at this angle value on the side of the combination ring 1. The whole device can form an inclined surface of equal size.

[0040] 2. Rotate and adjust the combined ring 1 and the fixed anchor 5 so that the median scale between the indicating arrow on the fixed anchor 5 and the maximum scale on the side of the combined ring 1 is at the lowest position, which can ensure that the inclined surface of the fixed anchor 5 is inclined upward, thinner at the top and thicker at the bottom.

[0041] Example 1: Point the indicating arrow of the fixed anchor 5 at the 15° scale on any side of the side of the combined ring 1, and then rotate the combined ring 1 and the fixed anchor 5 as a whole so that the numerical scale between the arrow on the fixed anchor 5 and the maximum scale of 30° on the side of the combined ring 1 is at the lowest position, that is, place 22.5° at the lowest position.

[0042] Example 2: Point the indicating arrow of the fixed anchor 5 at the 30° scale on the side of the combined ring 1. At this time, the overall inclination angle of the device is 30° at the maximum. The median scale between the scale on the combined ring 1 and the arrow on the fixed anchor 5 is at the 30° scale. At this time, adjust the whole device so that the 30° scale is at the lowest position, and its state is the same as that in the appendix. Figure 8 Consistent.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An adjustable-angle anchor, characterized in that: It includes a combined ring (1) for support, a fixed anchor (5), an inner locking ring (3) and a mating locking ring (4) for connection and cooperation. The fixed anchor (5) is provided at one end of the combined ring (1). A hollow groove (2) is formed on the inner side of the combined ring (1). The inner locking ring (3) is provided on the inner bottom surface of the hollow groove (2). The fixed anchor (5) and the inner locking ring (3) are connected and cooperated through the mating locking ring (4). Six wedge-shaped holes (6) are formed through the fixed anchor (5). The contact surface between the combined ring (1) and the fixed anchor (5) is a rough surface, and angle graduation lines are provided on the rough surface. The contact surface between the combined ring (1) and the mating locking ring (4) is an inclined surface. The inner locking ring (3) is a semi-circular ring, and the arc span is 179 degrees. The inclined surface angle between the combined ring (1) and the fixed anchor (5) is obtained by calculation according to the construction surface, and the angle range is between 0 degree and 50 degrees. The diameter of the combined ring (1) is larger than the diameter of the fixed anchor (5). The combined ring (1), the hollow groove (2) and the inner locking ring (3) are integrally formed. The mating locking ring (4), the fixed anchor (5) and the wedge-shaped holes (6) are integrally formed.

Images