CN207934920U - A kind of steel strand anchor rod - Google Patents

Abstract

The utility model discloses a kind of steel strand anchor rods in mooring rod technique field,The middle-end steel strand wires device and front end steel strand wires device,Tail end steel strand wires device passes through the connection that is spirally connected,The front end steel strand wires device,Middle-end steel strand wires device,Tail end steel strand wires apparatus structure all same,The front end steel strand wires device includes two groups of steel strand wires device cases,Twisted wire in steel strand wires device case described in two groups is by fastening wire loop to through connection,According to the quantity of the depth adjustment steel strand wires device of drilling,To meet the drilling of different depth,Avoid the problem of integrated steel twisted wire needs shearing to result in waste of resources because of drilling depth,Fixation using fastening line to steel strand wires,It avoids between steel strand wires and steel strand wires device case by occurring the phenomenon that strength reduction caused by welding,So that scheduled intensity is not achieved in anchor pole,It is easy to operate,It is easy for construction.

Description

A kind of steel strand anchor rod

Technical field

The utility model discloses a kind of steel strand anchor rods, specially mooring rod technique field.

Background technology

Anchor pole is the most basic component part of roadway support in contemporary coal mine, he is by the surrounding rock consolidation in tunnel one It rises, makes country rock itself supporting itself.Present anchor pole is applied not only to mine, is also used in engineering technology, side slope, tunnel, dam body Carry out main body reinforcing.Anchor pole is connect as the tensional element for going deep into stratum, its one end with engineering structure, and the other end gos deep into stratum In, existing steel strand anchor rod mostly uses greatly integrated steel twisted wire, since drilling depth differs, when steel strand anchor rod is put into, The naked steel strand anchor rod being exposed on the external generally requires to be sheared, and causes to waste.

Utility model content

The purpose of this utility model is to provide a kind of steel strand anchor rods, mentioned above in the background art existing to solve Integral type steel strand anchor rod because drilling depth difference, sheared, wasting problem.

To achieve the above object, the utility model provides the following technical solutions：A kind of steel strand anchor rod, including front end master The left end of bar, the front end mobile jib is welded with drill bit, and the left end of the front end mobile jib is located at the inner cavity of drill bit, the front end mobile jib Right end be bolted with middle-end mobile jib, the right end of the middle-end mobile jib is bolted with tail end mobile jib, the front end mobile jib, middle-end mobile jib, The outer wall of tail end mobile jib be sequentially installed with from left to right front end steel strand wires device, middle-end steel strand wires device, tail end steel strand wires device, Pressure pipe and nut, the middle-end steel strand wires device is allowed to be connect by being spirally connected with front end steel strand wires device, tail end steel strand wires device, The front end steel strand wires device is connect with drill bit by being spirally connected, and the right part of the tail end mobile jib is provided with nut to matched spiral shell Line, the front end steel strand wires device, middle-end steel strand wires device, tail end steel strand wires apparatus structure all same, the front end steel strand wires Device include two groups of steel strand wires device cases, steel strand wires device case described in two groups mutually depending on being equipped with twisted wire, the strand between wall Line extends through two groups of steel strand wires device cases, and the twisted wire in steel strand wires device case described in two groups is by fastening wire loop to passing through Wear connection.

Preferably, the front end steel strand wires device, middle-end steel strand wires device, tail end steel strand wires device outer wall be welded with Dead ring.

Preferably, the fastening line is that Q235 steel fastens line.

Preferably, the drill bit is aluminium alloy drill bit.

Compared with prior art, the utility model has the beneficial effects that：This practicality using multistage steel strand wires device mutually into Row is spirally connected, and integral type is avoided to meet the drilling of different depth according to the quantity of the depth adjustment steel strand wires device of drilling The problem of steel strand wires need shearing to result in waste of resources because of drilling depth, the fixation using fastening line to steel strand wires, avoids By occurring the phenomenon that strength reduction caused by welding between steel strand wires and steel strand wires device case so that anchor pole is not achieved predetermined Intensity, easy to operate, easy for construction, setting allows pressure pipe, provides radial constraint protection mobile jib and steel strand wires device will not mistake Early fracture improves supporting performance.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model mobile jib structural schematic diagram；

Fig. 3 is the utility model steel strand wires device case left view.

In figure：1 front end mobile jib, 2 drill bits, 3 middle-end mobile jibs, 4 tail end mobile jibs, 5 front end steel strand wires devices, 6 middle-end steel strand wires Device, 7 tail end steel strand wires devices, 8 allow pressure pipe, 9 nuts, 10 steel strand wires device cases, 11 twisted wires, 12 to fasten lines.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of steel strand anchor rod, including front end mobile jib 1, The left end of the front end mobile jib 1 is welded with drill bit 2, and the left end of the front end mobile jib 1 is located at the inner cavity of drill bit 2, the front end master The right end of bar 1 is bolted with middle-end mobile jib 3, and the right end of the middle-end mobile jib 3 is bolted with tail end mobile jib 4, the front end mobile jib 1, in The outer wall of mobile jib 3, tail end mobile jib 4 is held to be sequentially installed with front end steel strand wires device 5, middle-end steel strand wires device 6, tail end from left to right Steel strand wires device 7 allows pressure pipe 8 and nut 9, the middle-end steel strand wires device 6 to be filled with front end steel strand wires device 5, tail end steel strand wires 7 are set by the connection that is spirally connected, and the front end steel strand wires device 5 is connect with drill bit 2 by being spirally connected, the right part of the tail end mobile jib 4 It is provided with nut 9 to matched screw thread, the front end steel strand wires device 5, middle-end steel strand wires device 6,7 knot of tail end steel strand wires device Structure all same, the front end steel strand wires device 5 include two groups of steel strand wires device cases 10, steel strand wires device case 10 described in two groups Mutually depending on being equipped with twisted wire 11 between wall, the twisted wire 11 extends through two groups of steel strand wires device cases 10, steel strand wires described in two groups Twisted wire 11 in device case 10 is circumferential through connection by fastening line 12.

Wherein, front end steel strand wires device 5, middle-end steel strand wires device 6, tail end steel strand wires device 7 outer wall be welded with tightly Gu ring improves steel strand wires device yield strength, fastening line 12 is that Q235 steel fastens line, is avoided because twisted wire 11 is to fastening 12 pulling force of line Excessive, caused fracture, drill bit 2 is aluminium alloy drill bit, and intensity is high, and quality is lighter.

Operation principle：Drill bit 2 and front end steel strand wires device 5 are spirally connected, drill bit 2 is put into drilling by front end mobile jib 1, Pass through multigroup middle-end mobile jib 3 and the middle-end steel strand wires device 6 of being spirally connected during being put into so that this practical length increases, finally by tail End mobile jib 4 and the middle-end mobile jib 3 of front are spirally connected, and tail end steel strand wires device 7 and the middle-end steel strand wires device 6 of front are spirally connected, will Pressure pipe 8 is allowed to be installed on the outer wall of tail end mobile jib 4 so as to allow pressure pipe 8 to be contacted with tail end steel strand wires device 7, then by nut 9 and tail end Mobile jib 4 is spirally connected, rotating nuts 9 so that allows pressure pipe 8 to be in close contact respectively with nut 9, tail end steel strand wires device 7 so as to allow pressure pipe 8 play supporting performance.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of steel strand anchor rod, including front end mobile jib（1）, it is characterised in that：The front end mobile jib（1）Left end be welded with brill Head（2）, the front end mobile jib（1）Left end be located at drill bit（2）Inner cavity, the front end mobile jib（1）Right end be bolted with middle-end Mobile jib（3）, the middle-end mobile jib（3）Right end be bolted with tail end mobile jib（4）, the front end mobile jib（1）, middle-end mobile jib（3）, tail Hold mobile jib（4）Outer wall be sequentially installed with front end steel strand wires device from left to right（5）, middle-end steel strand wires device（6）, tail end steel twist Line apparatus（7）, allow pressure pipe（8）And nut（9）, the middle-end steel strand wires device（6）With front end steel strand wires device（5）, tail end steel Stranded wire apparatus（7）Pass through the connection that is spirally connected, the front end steel strand wires device（5）With drill bit（2）Pass through the connection that is spirally connected, the tail end Mobile jib（4）Right part be provided with and nut（9）To matched screw thread, the front end steel strand wires device（5）, middle-end steel strand wires device （6）, tail end steel strand wires device（7）Structure all same, the front end steel strand wires device（5）Including two groups of steel strand wires device cases （10）, steel strand wires device case described in two groups（10）Mutually depending on being equipped with twisted wire between wall（11）, the twisted wire（11）It extends through Two groups of steel strand wires device cases（10）, steel strand wires device case described in two groups（10）In twisted wire（11）By fastening line（12） Circumferential direction is through connection.

2. a kind of steel strand anchor rod according to claim 1, it is characterised in that：The front end steel strand wires device（5）, middle-end Steel strand wires device（6）, tail end steel strand wires device（7）Outer wall be welded with dead ring.

3. a kind of steel strand anchor rod according to claim 1, it is characterised in that：The fastening line（12）It is fastened for Q235 steel Line.

4. a kind of steel strand anchor rod according to claim 1, it is characterised in that：The drill bit（2）For aluminium alloy drill bit.