Anchor rod for slope support

Abstract

The utility model relates to the technical field of anchor rods, and discloses an anchor rod for slope supporting, the anchor rod comprises a rod head, the upper surface of the rod head is fixedly connected with a rod body, the outer surface of the rod body is provided with two groups of expansion slots, and a rotating shaft is rotatably connected between two inner side walls of each expansion slot; the outer surface of each rotating shaft is fixedly connected with an expansion plate, and the outer surface of each rotating shaft is fixedly connected with a worm wheel. According to the anchor rod for slope supporting, by rotating the power pipe, the power pipe drives the contact disc to rotate, the multiple expansion plates can be driven to be overturned and opened towards the outer side of the rod body, the grabbing force can be effectively improved, the anchoring effect can be improved, meanwhile, the self-locking purpose of the expansion plates can be achieved through the arranged worm grooves and worm gears, the stability after expansion is improved, and the anchor rod is convenient to use. And meanwhile, the expansion plates are circumferentially arranged, so that the geology on the circumferential surface of the rod body can be uniformly grabbed and attached, and the overall reliability is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of anchor rods, and in particular to an anchor rod for slope support. Background Art

[0002] The slopes formed during engineering construction often experience geological disasters such as landslides, collapses, expansions or spalling when encountering rainy days or strong vibrations. In order to prevent the occurrence of the above geological disasters, slope management is required. According to the geological composition, the slope can be divided into a landslide body and a sliding bed from the outside to the inside. The landslide body is also called an unstable area, and the sliding bed is relatively called a stable area. Anti-slide piles or prestressed cables penetrate through the landslide body and penetrate into the sliding bed to support the sliding force of the landslide body and stabilize the slope. The rod body is a commonly used component in slope reinforcement construction and has been widely used in slope engineering.

[0003] The existing patent (publication number: CN213390119U) discloses an anchor rod for slope support, comprising a rod body and a plurality of anchors arranged at intervals along the length direction of the rod body, wherein the anchors comprise a plurality of rotating blades for increasing the gripping force of the anchor rod on the slide bed, and a driving part for driving the rotating blades to retract and extend. The utility model has the effect of improving the protection capability of the slope.

[0004] During the use of the above-mentioned anchor rod, the gripping force of the anchor rod on the sliding bed geology is increased by extending the rotating blades. However, the blades can only increase the gripping force on the sliding bed geology on one side of the rod body, and the gripping is not uniform, resulting in limited fixing effect. At the same time, the rotating blades lack a self-limiting mechanism, and are prone to being squeezed and displaced by the external geology during the concrete filling process, affecting their extension effect. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides an anchor rod for slope support, which has the advantages of easy operation and good gripping effect. It solves the problem that the blades can only increase the gripping force on the sliding bed geology on one side of the rod body, the grip is not uniform, resulting in limited fixing effect. At the same time, the rotating blades lack a self-limiting mechanism, which makes it easy for the rotating blades to be squeezed and displaced by the external geology during the extension adjustment and the concrete filling process, affecting their extension effect.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an anchor rod for slope support, comprising a rod head, the upper surface of the rod head is fixedly connected to a rod body, the outer surface of the rod body is provided with two groups of expansion grooves, a rotating shaft is rotatably connected between the two inner side walls of each of the expansion grooves, an expansion plate is fixedly connected to the outer surface of each of the rotating shafts, and a worm gear is fixedly connected to the outer surface of each of the rotating shafts;

[0007] A power tube is rotatably connected between the inner top wall and the inner bottom wall of the rod body via a bearing, and two contact plates are fixedly connected to the outer surface of the power tube. Worm grooves are provided on the outer surfaces of the two contact plates, and each worm wheel is meshedly connected with the worm groove adjacent to it.

[0008] Through the above scheme, by rotating the power tube, multiple expansion plates can be driven to flip and open to the outside of the rod body, which can effectively improve the gripping force and the anchoring effect. At the same time, the worm groove and the worm gear can achieve the self-locking purpose of the expansion plate, improve the stability after expansion, and avoid the self-movement of the expansion plate. At the same time, by setting the circumferential arrangement of the expansion plates, the geology of the circular surface of the rod body can be evenly gripped, further improving the overall reliability.

[0009] Furthermore, the outer surface of the power tube is provided with a plurality of groups of filling holes.

[0010] Through the above scheme, the provision of the filling hole facilitates the user to pour concrete.

[0011] Furthermore, a power block is fixedly connected to the inner wall of the power tube, a hexagonal groove is formed on the upper surface of the power block, and the hexagonal groove penetrates the power block.

[0012] Through the above solution, the setting of the hexagonal groove makes it convenient for the user to rotate the power tube.

[0013] Furthermore, a rotation groove is provided at the top end of the shaft.

[0014] Through the above solution and the setting of the rotating groove, it is convenient for the user to rotate the shaft.

[0015] Furthermore, a through hole is provided on the inner bottom wall of the rotating groove.

[0016] Through the above solution, by setting the through holes, it is possible to facilitate concrete to enter the power pipe.

[0017] Furthermore, the top of each expansion board is rounded.

[0018] According to the above solution, by providing a rounded corner at the top of the expansion board, it is possible to avoid interference between the expansion board and the expansion slot during the flipping process.

[0019] Furthermore, the number of expansion boards in each group is four.

[0020] Through the above solution and the provision of the expansion board, the contact area between the whole and the outside world can be increased.

[0021] Furthermore, the expansion boards in each group are arranged in a circle with equal distances.

[0022] Through the above solution, the expansion plates are arranged in a circle with equal distances, so that they can be in uniform contact with the outside world.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This kind of anchor rod for slope support can drive multiple expansion plates to flip and open to the outside of the rod body by rotating the power tube, which can effectively improve the gripping force and the anchoring effect. At the same time, the worm groove and the worm wheel can achieve the self-locking purpose of the expansion plate, improve the stability after expansion, and avoid the self-movement of the expansion plate. At the same time, by setting the circumferential arrangement of the expansion plates, the geology of the circular surface of the rod body can be evenly gripped, further improving the overall reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of the front view of the shaft of the present application;

[0026] Figure 2 For this application Figure 1 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 3 This is a front view of the shaft for this application;

[0028] Figure 4 This is a schematic diagram of the shaft and club head structure of this application;

[0029] Figure 5 This is a schematic diagram of the expansion plate and shaft structure of this application.

[0030] In the figure:

[0031] 1. Rod head; 2. Rod body; 3. Extension slot; 4. Rotation shaft; 5. Extension plate; 6. Worm gear; 7. Power tube; 8. Contact plate; 9. Worm slot; 10. Filling hole; 11. Power block; 12. Hexagonal slot; 13. Rotation slot; 14. Through hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] See also Figure 1 , Figure 2 and Figure 4In the present embodiment, an anchor rod for slope support comprises a rod head 1, the upper surface of the rod head 1 is fixedly connected with a rod body 2, the outer surface of the rod body 2 is provided with two groups of expansion grooves 3, and the top of the rod body 2 is provided with a rotation groove 13. The setting of the rotation groove 13 facilitates the user to rotate the rod body 2. A rotation shaft 4 is rotatably connected between the two inner side walls of each expansion groove 3, and an expansion plate 5 is fixedly connected to the outer surface of each rotation shaft 4. The number of each group of expansion plates 5 is four. Through the setting of the expansion plates 5, the overall contact area with the outside world can be increased. Each group of expansion plates 5 is arranged in an equidistant circle. By arranging the expansion plates 5 in an equidistant circle, it can be made to contact the outside world evenly.

[0034] See also Figure 1 , Figure 2 and Figure 3 In addition, the top of each expansion plate 5 is rounded, and the top of the expansion plate 5 is rounded to avoid interference with the expansion slot 3 during the flipping process. The outer surface of each rotating shaft 4 is fixedly connected to a worm gear 6, and the inner bottom wall of the rotating groove 13 is provided with a through hole 14. The setting of the through hole 14 can facilitate the entry of concrete into the power tube 7.

[0035] See also Figure 1 , Figure 2 and Figure 5 A power tube 7 is rotatably connected between the inner top wall and the inner bottom wall of the rod body 2 through a bearing, and two contact plates 8 are fixedly connected to the outer surface of the power tube 7. A plurality of filling holes 10 are provided on the outer surface of the power tube 7. The setting of the filling holes 10 facilitates the user to pour concrete. A power block 11 is fixedly connected to the inner wall of the power tube 7. A hexagonal groove 12 is provided on the upper surface of the power block 11, and the hexagonal groove 12 runs through the power block 11. The setting of the hexagonal groove 12 facilitates the user to rotate the power tube 7. Worm grooves 9 are provided on the outer surfaces of the two contact plates 8, and each worm wheel 6 is meshed and connected with the worm groove 9 adjacent to it.

[0036] A slope support anchor rod in the present embodiment can drive multiple expansion plates 5 to flip and open to the outside of the rod body 2 by rotating the power tube 7, which can effectively improve the gripping force and the anchoring effect. At the same time, the worm groove 9 and the worm wheel 6 can achieve the self-locking purpose of the expansion plate 5, improve the stability after expansion, and avoid the self-movement of the expansion plate 5. At the same time, by arranging the expansion plates 5 in a circle, the geology of the circular surface of the rod body 2 can be evenly gripped, further improving the overall reliability.

[0037] It should be noted that the outer surface of the expansion plate 5 is set to be a rough surface, which can further improve the gripping force.

[0038] The working principle of the above embodiment is: use an external drilling rig to cooperate with the rotating groove 13 at the top of the rod body 2 to drive the rod body 2 to rotate, and drill it into the slope slide bed through the drill bit, and then replace the output end of the external motor to a small diameter, and cooperate with the hexagonal groove 12 to drive the power tube 7 to rotate. During the rotation process, the power tube 7 drives the worm groove 9 of the contact plate 8 to rotate, and the worm gear 6 engaged with it drives the rotating shaft to rotate, so that the expansion plate 5 is flipped outward, and then grouting is poured into the power tube 7. After the grouting material solidifies, the anchor rod can be fixed in the slope.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anchor rod for slope support, comprising a rod head (1), characterized in that: The upper surface of the rod head (1) is fixedly connected to the rod body (2); the outer surface of the rod body (2) is provided with two groups of expansion slots (3); a rotation shaft (4) is rotatably connected between the two inner side walls of each of the expansion slots (3); the outer surface of each of the rotation shafts (4) is fixedly connected to an expansion plate (5); and the outer surface of each of the rotation shafts (4) is fixedly connected to a worm gear (6); A power tube (7) is rotatably connected between the inner top wall and the inner bottom wall of the shaft (2) via a bearing, and two contact plates (8) are fixedly connected to the outer surface of the power tube (7). The outer surfaces of the two contact plates (8) are each provided with a worm groove (9), and each of the worm wheels (6) is meshingly connected with the worm groove (9) adjacent thereto.

2. The anchor rod for slope support according to claim 1, characterized in that: The outer surface of the power tube (7) is provided with a plurality of groups of filling holes (10).

3. The anchor rod for slope support according to claim 1, characterized in that: A power block (11) is fixedly connected to the inner wall of the power tube (7), a hexagonal groove (12) is provided on the upper surface of the power block (11), and the hexagonal groove (12) penetrates the power block (11).

4. The anchor rod for slope support according to claim 1, characterized in that: A rotation groove (13) is provided at the top end of the shaft (2).

5. The anchor rod for slope support according to claim 4, characterized in that: The inner bottom wall of the rotating groove (13) is provided with a through hole (14).

6. The anchor rod for slope support according to claim 1, characterized in that: The top end of each expansion board (5) is rounded.

7. The anchor rod for slope support according to claim 1, characterized in that: The number of expansion boards (5) in each group is four.

8. The anchor rod for slope support according to claim 1, characterized in that: Each group of expansion plates (5) are arranged in a circle with equal distances from each other.

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