Auxiliary fixing device for supporting anchor rod

Abstract

The utility model discloses a support anchor rod auxiliary fixing device which comprises a connecting ring assembly, a connecting base and a steel wire rope connecting the connecting ring assembly and the connecting base, a plurality of positioning supporting rods are arranged on the lower end face of the connecting base, and the positioning supporting rods comprise long positioning supporting rods and short positioning supporting rods which are different in length. All the positioning supporting rods are evenly distributed on the connecting base around the anchor rod, each positioning supporting rod comprises a rod body and a plurality of positioning wing plates which are arranged on the rod body in a staggered mode in the axial direction of the rod body at intervals, and the problems that due to soil loosening, the anchor rod in a drilled hole is prone to loosening, the anchor rod fixing and supporting effect is poor, and displacement is prone to occurring are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to an auxiliary fixing device for supporting anchor rods. Background Art

[0002] In the construction of foundation pit support in civil engineering, anchor support is a construction technology commonly used for soil wall support during foundation pit excavation. It is widely used in slopes, foundation pits, tunnels, underground pipelines and anti-floating projects in industries such as transportation, construction, municipal administration, hydropower, and mining construction. At present, the commonly used construction process of anchor support is: drilling holes on the slope of the foundation pit, inserting anchor rods, pressure-injecting cement mortar, and curing and hardening to play the role of soil wall support. Then hang a protective net between the anchor rods, spray soil, and restore vegetation.

[0003] However, due to the loose soil layer, except for the part that penetrates into the soil layer, the connection precision between the rest of the support anchor and the surrounding soil is low, especially in shallow silty soil layers or loose soil layers, resulting in poor anchor support effect and easy displacement. In particular, the existing used anchor rods may not be equipped with a fastening device to tightly connect the anchor rod with the soil. After long-term wind and rain, the soil is loose and the anchor rod in the drilled hole is prone to loosening. Therefore, how to design a support anchor auxiliary fixing device that can solve the above technical problems. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model designs a supporting anchor rod auxiliary fixing device.

[0005] The technical solution of the utility model is as follows:

[0006] A supporting anchor auxiliary fixing device includes a connecting ring assembly, a connecting base and a steel wire rope connecting the connecting ring assembly and the connecting base. A plurality of positioning support rods are arranged on the lower end surface of the connecting base. The positioning support rods include long positioning support rods and short positioning support rods of different lengths, and all the positioning support rods are evenly distributed around the anchor rod on the connecting base. The positioning support rods include a rod body and a plurality of positioning wing plates staggered along the axial direction of the rod body.

[0007] Furthermore, a plurality of connecting ears are provided on the upper end surface of the connecting base; a connecting hole with the same diameter as the outer diameter of the anchor rod is opened in the center of the connecting base, and an annular rubber ring is covered on the inner peripheral wall of the connecting hole, and the diameter of the annular rubber ring is smaller than the outer diameter of the anchor rod. When the annular rubber ring is inserted into the outer sleeve of the anchor rod, the anchor rod squeezes the annular rubber ring and is tightly connected with the annular rubber ring through an interference fit.

[0008] Furthermore, the connecting ring assembly includes a connecting ring 1 and a connecting ring 2 which is detachably connected to the connecting ring 1; both ends of the connecting ring 1 are provided with fastening bolts for connecting to the connecting ring 2, and both ends of the connecting ring 2 are provided with slots matching the fastening bolts; a plurality of connecting ears 2 corresponding to the connecting ears 1 are also provided on the outer peripheral wall of the connecting ring 1, and both ends of the steel wire rope pass through the connecting ears 1 and the connecting ears 2 respectively and are fixed to the connecting ears 1 and the connecting ears 2.

[0009] Furthermore, the end of the positioning support rod is also provided with a rod tip which is integrally formed with the rod body and is in the shape of a triangular pyramid.

[0010] Furthermore, the positioning wing plate is arranged to be inclined toward the connecting base.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model is an auxiliary fixing device for supporting anchor rods. By sleeve-mounting a connection base on the outer peripheral wall of the anchor rod, the connection base is buried in the soil, so that the positioning rods of different lengths on the lower end surface of the connection base penetrate into the soil, thereby increasing the stability between the connection base, the anchor rod and the soil, which is used as the first step of fixing the anchor rod buried in the soil; then the connection ring assembly is connected to the anchor rod, and the connection ring assembly and the connection base are connected by a steel wire rope to prevent the anchor rod from tilting, which is used as the second fixation of the anchor rod buried in the soil, thereby increasing the stability of the anchor rod fixation;

[0013] 2. The utility model provides a supporting anchor rod auxiliary fixing device, which reduces the resistance of the positioning support rod when it is inserted into the soil by setting the rod tip to a triangular pyramid shape;

[0014] 3. The utility model provides an auxiliary fixing device for a supporting anchor rod, wherein a plurality of positioning wing plates are arranged on the rod body, and the positioning wing plates increase the tightness of the connection between the connection base and the soil to prevent the connection base from moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the auxiliary fixing device for supporting anchor rods of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the connection base in the auxiliary fixing device for supporting anchor rods of the utility model;

[0017] Figure 3 This is a distribution diagram of the positioning support rods in the auxiliary fixing device for supporting anchor rods in Example 1 of the utility model;

[0018] Figure 4 This is a distribution diagram of the positioning support rods in the support anchor auxiliary fixing device in Example 2 of the utility model.

[0019] The reference numerals in the figure are as follows:

[0020] 1. Connecting ring assembly; 11. Connecting ring 1; 111. Fastening bolt; 12. Connecting ring 2; 121. Slot; 13. Connecting ear 2; 2. Connecting base; 21. Positioning support rod; 211. Rod tip; 212. Positioning wing plate; 213. Rod body; 214. Long positioning support rod; 215. Short positioning support rod; 22. Connecting ear 1; 23. Connecting hole; 231. Annular rubber ring; 3. Wire rope. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] See also Figures 1 to 4 A supporting anchor auxiliary fixing device comprises a connecting ring assembly 1, a connecting base 2 and a steel wire rope 3 connecting the connecting ring assembly 1 and the connecting base 2. The upper end surface of the connecting base 2 is provided with a plurality of connecting ears 22; a connecting hole 23 with the same outer diameter of the anchor is opened in the center of the connecting base 2; the connecting hole 23 is provided so that the anchor can be smoothly inserted into the fixing device and form a whole with the device; the inner peripheral wall of the connecting hole 23 is covered with an annular rubber ring 231, and the diameter of the annular rubber ring 231 is slightly smaller than the outer diameter of the anchor. When the annular rubber ring 231 is inserted into the outer cover of the anchor, the anchor squeezes the annular rubber ring 231 and is tightly connected with the annular rubber ring 231 through an interference fit, thereby enhancing the connection strength between the anchor and the fixing device. The design of the annular rubber ring 231 absorbs and buffers external forces to a certain extent, reducing the impact and vibration that the anchor may be subjected to during operation.

[0023] In Example 1, a plurality of positioning rods 21 are arranged on the lower end surface of the connecting base 2, and these positioning rods 21 include long positioning rods 214 and short positioning rods 215. In terms of specific layout, a certain number of short positioning rods 215 are arranged on both sides of each long positioning rod 214, and the two are arranged in an orderly manner in an interval shape. It is worth noting that both the long positioning rods 214 and the short positioning rods 215 strictly follow the circumferential regular distribution and ensure that their radial distances are always equidistant relative to the central axis of the anchor rod. This ingenious design is intended to ensure that the underground soil can fit tightly and firmly adhere to the positioning rods 21, thereby enhancing the stability between the soil and the connecting base. All positioning rods 21 are distributed on the connecting base 2 around the anchor rod, and together constitute an efficient and stable support structure for the entire device.

[0024] In Example 2, for the connection base 2 with a larger surface area, a number of positioning rods 21 of different lengths are also installed on its lower end surface, which still include long positioning rods 214 and short positioning rods 215. The special thing is that when the size of the connection base 2 increases, the short positioning rods 215 will be closely distributed around the long positioning rods 214 in a circumferential manner to form independent support units, and multiple such units are further distributed around the anchor rod according to the circumferential axis. Each unit is like a strong gripper, firmly grasping the soil, thereby achieving a more solid and tight combination between the connection base 2 and the soil, thereby significantly improving the support stability of the entire device.

[0025] The positioning support rod 21 includes a rod body 213 and a positioning wing plate 212. The positioning wing plates 212 are staggered along the axial direction of the rod body 213, which increases the contact area between the rod body 213 and the soil, and also enhances the connection tightness between the connecting base 2 and the soil through friction, thereby preventing the connecting base 2 from moving; the positioning wing plates 212 are tilted toward the connecting base 2 to enhance the resistance effect, further strengthen the connection strength of the positioning support rod 21 to the soil, and make the connection of the entire device more stable. The end of the positioning support rod 21 is provided with a rod tip 211 that is integrally formed with the rod body 213 and is in the shape of a triangular pyramid. The triangular pyramid structure can more easily disperse the pressure of the soil during insertion, thereby reducing the force required for insertion, thereby reducing the resistance of the positioning support rod 21 when inserted into the soil.

[0026] In this embodiment, the connecting ring assembly 1 includes a connecting ring 11 and a connecting ring 2 12 detachably connected to the connecting ring 11; both ends of the connecting ring 11 are provided with fastening bolts 111 for connecting to the connecting ring 2 12, and both ends of the connecting ring 2 12 are provided with clamping grooves 121 matching the fastening bolts 111; when it is necessary to connect two connecting rings, it is only necessary to insert the fastening bolts 111 into the clamping grooves 121, and then tighten the fastening bolts 111 to complete the connection. This connection method is simple and reliable, and can withstand greater tension and pressure to ensure safety during operation. In addition, a number of connecting ears 13 corresponding to the connecting ears 22 are provided on the outer peripheral wall of the connecting ring 11, and both ends of the wire rope 3 pass through the connecting ears 1 22 and the connecting ears 2 13 respectively and are fixed to the connecting ears 1 22 and the connecting ears 2 13. The combination of the connecting ears and the wire rope 3 enables the component to withstand greater tension and is suitable for various lifting and connection scenarios.

[0027] Working principle:

[0028] When in use, workers drill holes where the anchor rods are required and insert the anchor rods into the holes. At this time, part of the anchor rods protrude from the holes. Workers sleeve the connecting base 2 on the outer peripheral wall of the anchor rod and connect the connecting base 2 to the soil. The positioning support rod 21 at the bottom of the connecting base 2 increases the connection tightness between the connecting base 2 and the soil, making the assembly of the connecting base 2 more stable and firm. At this time, the connecting ring 1 11 and the connecting ring 2 12 are connected to the anchor rod, the connecting ring assembly 1 is engaged with the anchor rod, and the two ends of the wire rope 3 are respectively passed through the connecting ear 1 22 and the nearest connecting ear 2 13 to further fix the anchor rod. The external wire rope 3 is pulled to place the anchor rod at an angle, which has a very good anti-dumping function and improves stability and tightness.

[0029] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A support anchor auxiliary fixing device, comprising a connecting ring assembly (1), a connecting base (2) and a steel wire rope (3) connecting the connecting ring assembly (1) and the connecting base (2), characterized in that: A plurality of positioning rods (21) are provided on the lower end surface of the connection base (2), the positioning rods (21) comprising long positioning rods (214) and short positioning rods (215) of different lengths, and all positioning rods (21) are evenly distributed around the anchor rod on the connection base (2), and the positioning rods (21) comprise a rod body (213), and a plurality of positioning wing plates (212) are staggeredly provided on the rod body (213) along its axial direction.

2. A support anchor auxiliary fixing device according to claim 1, characterized in that: A plurality of connecting ears (22) are provided on the upper end surface of the connecting base (2); a connecting hole (23) having the same diameter as the outer diameter of the anchor rod is provided at the center of the connecting base (2); an annular rubber ring (231) is provided on the inner peripheral wall of the connecting hole (23); the diameter of the annular rubber ring (231) is smaller than the outer diameter of the anchor rod; when the annular rubber ring (231) is inserted into the outer cover of the anchor rod, the anchor rod squeezes the annular rubber ring (231) and is tightly connected to the annular rubber ring (231) through an interference fit.

3. The auxiliary fixing device for supporting anchor rods according to claim 1, characterized in that: The connecting ring assembly (1) comprises a connecting ring 1 (11) and a connecting ring 2 (12) detachably connected to the connecting ring 1 (11); fastening bolts (111) for connecting to the connecting ring 2 (12) are provided at both ends of the connecting ring 1 (11); and clamping grooves (121) matching the fastening bolts (111) are provided at both ends of the connecting ring 2 (12); a plurality of connecting ears 2 (13) corresponding to the connecting ears 1 (22) are also provided on the outer peripheral wall of the connecting ring 1 (11); and the two ends of the steel wire rope (3) respectively pass through the connecting ears 1 (22) and the connecting ears 2 (13) and are fixed to the connecting ears 1 (22) and the connecting ears 2 (13).

4. The auxiliary fixing device for supporting anchor rods according to claim 1, characterized in that: The end of the positioning support rod (21) is also provided with a rod tip (211) which is integrally formed with the rod body (213) and is in the shape of a triangular pyramid.

5. The auxiliary fixing device for supporting anchor rods according to claim 1, characterized in that: The positioning wing plate (212) is arranged to be inclined toward the connection base (2).

6. The auxiliary fixing device for supporting anchor rods according to claim 1, characterized in that: The long positioning support rod (214) and the short positioning support rod (215) are arranged according to a circumferential regularity, and when the two are evenly distributed around the central axis of the anchor rod, the radial distance between them is always kept equidistant relative to the anchor rod.

7. The auxiliary fixing device for supporting anchor rods according to claim 1, characterized in that: The short positioning support rods (215) are distributed circumferentially around the long positioning support rod (214) to form a unit, and a plurality of units are distributed around the circumferential axis of the anchor rod.

Images