CN210395335U - Expansion shell bearing plate and anchor rod adopting same - Google Patents

Abstract

The utility model relates to an expand shell bearing plate, including toper bearing plate, the through-hole that supplies the stock body of rod to run through is seted up along the axial at the center of toper bearing plate, and toper bearing plate has flat plate portion and toper portion, and the toper portion is established respectively to link and free end along axial both ends, and the external diameter of link is greater than the external diameter of free end, and the link forms annular extrusion platform with the junction of flat plate portion, and the last first annular that is equipped with of annular extrusion platform lets the pressure pad. The utility model discloses the stock is when exerting prestressing force, and toper bearing plate lets the pressure pad owing to be equipped with first annular on the annular extrusion bench, is fixed with the second annular on the terminal surface of free end and lets the pressure pad, can release certain deformation when toper bearing plate can extrude the slip casting body, produces certain "letting press" deformation promptly. In the yielding process, the conical surface of the conical part can radially extrude the peripheral grouting body to enable the grouting body to generate radial expansion, so that the grouting body extrudes the peripheral rock-soil body, the normal stress of the grouting body and the rock-soil body interface is greatly increased, the bonding strength of the grouting body and the rock-soil body interface is obviously enhanced, and the uplift bearing capacity of the anchor rod is greatly improved.

Description

Expansion shell bearing plate and anchor rod adopting same

Technical Field

The utility model relates to an expand shell bearing plate and adopt this anchor rod of expanding shell bearing plate, it can be used to engineering such as mine tunnel, traffic tunnel, water conservancy culvert are strutted, foundation support.

Background

In a bolting system, a pressure bearing plate is an important component in a pressure type anchor rod, a pressure dispersion type anchor rod and a tension-compression composite type anchor rod. The anchor rod transmits the external load to the bearing plate through the unbonded rod body, extrudes the grouting body through the bearing plate, and transmits the grouting body to the rock-soil body through the adhesive effect of the grouting body and the rock-soil body interface. Therefore, the bonding strength of the grouting body and the rock-soil body interface is extremely important for the uplift bearing capacity of the anchor rod.

The bearing plates used by the conventional anchor rod are all flat plates, so that the grouting body is axially pressed and influenced by the Poisson effect, the grouting body has certain radial expansion, the normal stress of the interface between the grouting body and a rock-soil body is increased to a certain extent, and the bonding strength of the interface is enhanced to a certain extent. However, the existing bearing plates are flat plates, the general strength of the grouting body is high, the Poisson effect is very limited, the bonding strength enhancing effect of the interface between the grouting body and the rock-soil body is very limited, the enhancing effect of a large-diameter anchor rod is weaker, the bonding strength between the grouting body and the rock-soil body is not fully utilized, and the uplift bearing capacity of the anchor rod needs to be further excavated.

Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expand shell bearing plate to solve current plane bearing plate and be difficult to strengthen the problem that stock slip casting body and ground body interface cohered intensity, can exert the prestressing force back at the stock, the splitting slip casting body makes the slip casting body produce radial expansion, greatly increased slip casting body and the normal direction stress at ground body interface, thereby show the improvement interface and cohere intensity, increase stock resistance to plucking bearing capacity by a wide margin. The utility model discloses the stock that adopts this shell bearing plate that expands has still been provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

shell bearing plate expands, including toper bearing plate, the through-hole that supplies the stock body of rod to run through is seted up along the axial at the center of toper bearing plate, toper bearing plate has the flat plate portion and forms the toper portion on the flat plate portion, and the toper portion is established respectively to link and free end along axial both ends, and the external diameter of link is greater than the external diameter of free end, and the link forms annular extrusion platform with the junction of flat plate portion, and the last first annular that is equipped with of annular extrusion platform lets the pressure pad.

As a preferred mode of the present invention, a second annular pressure pad is fixed to the end face of the free end.

In a preferred embodiment of the present invention, the length of the tapered portion in the axial direction is 0.5 to 1.5 times the outer diameter of the flat plate portion.

As a preferable mode of the present invention, the inclination angle of the tapered surface of the tapered portion is 5 ° to 20 °.

As an optimized mode of the utility model, the first annular let the thickness of pressure pad with the second annular let the thickness of pressure pad be 2 ~ 10 mm.

As an optimized mode of the utility model, the first ring shape let the pressure pad with the second ring shape let the pressure pad be the low elastic modulus ring pad.

The utility model also provides an anchor rod, include the stock body of rod and install the toper bearing plate on the stock body of rod, the through-hole that supplies the stock body of rod to run through is seted up along the axial at the center of toper bearing plate, the toper bearing plate has flat plate portion and forms the toper portion on the flat plate portion, and the toper portion is established respectively to link and free end along axial both ends, and the external diameter of link is greater than the external diameter of free end, and the link forms annular extrusion platform with the junction of flat plate portion, and the annular extrusion bench is equipped with first annular and lets the pressure pad, and stock body of rod full length scope sets up the sleeve pipe, and stock body of rod bottom is provided with the extrusion cover, and the extrusion cover adopts spot welding fixed with.

The utility model provides the mechanism that improves stock resistance to plucking bearing capacity is: when the stock was exerting prestressing force, the toper bearing plate was because be equipped with first annular on the annular extrusion platform and let the pressure pad, was fixed with the second annular on the terminal surface of free end and lets the pressure pad, and the toper bearing plate can release certain deformation when can extruding the slip casting body, produced certain "letting press" deformation promptly. In the process of yielding: (1) the conical surface of the conical part can radially extrude peripheral grouting bodies to enable the grouting bodies to radially expand and to be similar to expansion bolts, so that the grouting bodies extrude peripheral rock-soil bodies, and the normal stress of the grouting bodies and the rock-soil body interface is greatly increased due to the reverse constraint action of the peripheral rock-soil bodies on the grouting bodies, so that the frictional resistance of the grouting bodies and the rock-soil body interface is obviously enhanced; (2) the flat plate part can extrude the grouting body along the axial direction of the anchor rod to generate a tendency of pushing the grouting body out of a drilled hole, on one hand, the adhesive force between the grouting body and a rock-soil body within the range of the full-length anchoring section of the anchor rod is overcome, and on the other hand, the friction force which is obviously increased due to the lateral expansion of the grouting body at the periphery of the expansion shell bearing plate is overcome. Based on the reasons in the two aspects, the expansion shell bearing plate enables the uplift resistance bearing capacity of the anchor rod to be greatly improved.

Drawings

Fig. 1 is the utility model discloses in install the compound stock of drawing and pressing of general purpose centering support and put into in the stock drilling sketch map. Fig. 2 is a sectional view of the installation of the universal centering bracket in the pressure-bearing anchoring section of the present invention. FIG. 3 is a cross-sectional view of the universal centering bracket of the present invention installed in a tensioned anchor section. Fig. 4 is a sectional view of a boat support according to a first embodiment of the present invention. Fig. 5 is a cross-sectional view of a rib plate of a boat support according to a first embodiment of the present invention. Fig. 6 is a cross-sectional view taken along line a-a of fig. 4 according to the present invention. Fig. 7 is a cross-sectional view taken along line B-B of fig. 4 according to the present invention. Fig. 8 is a cross-sectional view taken along line C-C of fig. 4 according to the present invention. Fig. 9 is a longitudinal sectional view of the first universal stopper of the present invention. Fig. 10 is a cross-sectional view taken along line D-D of fig. 9 in accordance with the present invention. Fig. 11 is a cross-sectional view of a first locking ring of the present invention. Fig. 12 is a cross-sectional view E-E of fig. 11 according to the present invention. Fig. 13 is an assembled view of the assembled centering bracket of the present invention. Fig. 14 is a longitudinal sectional view of an assembly plug according to the present invention. Fig. 15 is a sectional view of an assembly plug a-a according to the present invention. Fig. 16 is a longitudinal side view of the first position-limiting member according to the present invention. Fig. 17 is a sectional view taken along line B-B in fig. 16. Fig. 18 is a cross-sectional view taken along line C-C of fig. 16. Fig. 19 is a cross-sectional view taken along line D-D of fig. 16. Fig. 20 is a longitudinal sectional view of another embodiment of the boat support in the assembled centering bracket of the present invention. Fig. 21 is a schematic structural view of the rib plate in the assembled centering bracket of the present invention. Fig. 22 is a cross-sectional view taken along line E-E of fig. 20. Fig. 23 is a left side view of fig. 20. Fig. 24 is a cross-sectional view of the pressure-bearing plate of the present invention. Fig. 25 is a left side view of fig. 24 in the present invention. Fig. 26 is a right side view of fig. 24 in accordance with the present invention. Fig. 27 is a schematic view of an anchor with an expansion shell bearing plate installed in the anchor bore. Fig. 28 is a schematic view of the wheel type grout stopping tire of the present invention in the anchor bolt hole after being inflated. Fig. 29 is a sectional view of the wheel type grout stopping tire according to the present invention in an inflated state. Fig. 30 is a sectional view taken along line a-a of fig. 29 according to the present invention. Fig. 31 is a sectional view taken along line B-B of fig. 29 according to the present invention. Fig. 32 is a cross-sectional view taken along line C-C of fig. 29 according to the present invention. Fig. 33 is a front view of the hub of the present invention. Fig. 34 is a cross-sectional view taken along line D-D of fig. 33 according to the present invention.

Figure 35 is a cross-sectional view of the rubber tire before inflation for use with the isolation anchor grout of the present invention. Figure 36 is a cross-sectional view of the rubber tire with the isolation anchor grout applied thereto, after inflation. Fig. 37 is a cross-sectional view of the rubber tire before inflation using elevation anchor grouting and isolation grouting of the present invention. Fig. 38 is a cross-sectional view of the rubber tire with elevation anchor grouting and isolation grouting according to the present invention. Fig. 39 is an assembly structure diagram of the assembled integral bearing plate of the present invention. Fig. 40 is an exploded schematic view of the middle-matching type integral bearing plate of the present invention. Fig. 41 is a schematic perspective view of the assembled integral bearing plate of the present invention. Fig. 42 is a front view of the assembled integral bearing plate of the present invention.

In the figure:

10-anchor rod body; 101-a pressure-bearing anchoring section rod body; 102-a tensile anchoring section rod body; 103-a first thread segment; 104-a second thread segment; 11-a sleeve; 12-extruding a sleeve; 121-solder joints; 13-a limit clamp; 21-outer cylinder; 22-inner cylinder; 23-a rib plate; 211-a first arcuate guide surface; 212-a second arcuate guide surface; 221-a first tab cone portion; 222-a second bolt cone portion; 223-first adjustment seam; 224-a second adjustment slit; 225-internal thread portion; 24-the first universal plug; 25-a second universal plug; 241-a first bar penetrating hole; 242-first lacing seam; 243-perforating the first grouting pipe; 244 — a first stop cap; 245-a first chamfered portion; 26-a first locking ring; 261-first taper thread; 27-a second locking ring; 271-second tapered thread; 30-a rock-soil layer; 40-assembling a plug; 41-perforating the rib holes; 42-perforating a grouting pipe; 43-external thread; 51-a first stop; 52-a second stop; 511-a limit table; 512-a barrel portion; 513-an annular groove; 514-binding the wires; 515-adjusting the lock seam; 60-a pressure bearing plate; 61-a flat plate portion; 611-through holes; 62-a conical portion; 63-annular extrusion station; 64-a first annular pressure relief pad; 65-second annular pressure relief pad; 66-connecting rib holes; 67-a sleeve; 671-inner bore; 672-internal threads; 68-a reinforcing plate; 70-a tire; 71-an inflation tube nipple; 72-a gas-filled tube; 80-a hub; 81-a first tapered lock; 82-a second tapered lock head; 83-first lock stitch; 84-a second lock stitch; 85-hub groove; 90-grouting pipes; 91-a first lock ring; 92-a second locking ring; 911-first internal thread; 921 — second internal thread; 100-drilling; 200-an exhaust pipe; 300-grouting body.

Detailed Description

With reference to fig. 1 to 38, in order to further explain the technical solution of the present invention, the following is explained in detail with reference to the accompanying drawings.

Example one

Referring to fig. 1 to 12, the present invention provides a universal centering bracket, which comprises a boat-shaped bracket, a first universal plug 24, a second universal plug 25, a first locking ring 26 and a second locking ring 27. The ship-shaped support comprises an outer cylinder 21, inner cylinders 22 coaxially arranged at two ends of the outer cylinder 21 and a ribbed plate 23 connected between the outer cylinder 21 and the inner cylinder 22, wherein the inner cylinder 22 is provided with a first lock tongue taper cylinder part 211 and a second lock tongue taper cylinder part 212 at two ends along the axial direction, the outer diameter of the first lock tongue taper cylinder part 211 and the outer diameter of the second lock tongue taper cylinder part 212 are gradually increased from the free end to the central direction of the inner cylinder 22, a first universal plug 24 is embedded in the first lock tongue taper cylinder part 211, a second universal plug 25 is embedded in the second lock tongue taper cylinder part 212, the outer wall of the first lock tongue taper cylinder part 211 is provided with a first thread part, the outer wall of the second lock tongue taper cylinder part 212 is provided with a second thread part, the inner wall of the first locking ring 26 is provided with a first taper thread 261 matched with the first thread part, and the inner wall of the second locking ring 27 is provided with a second taper. The first bolt cone part 211 is provided with a first adjusting slit 223, the first adjusting slit 223 extends from the free end of the first bolt cone part 211 to the middle part of the inner cylinder 22 and penetrates from the inner wall of the first bolt cone part 211 to the outer wall, the second bolt cone part 212 is provided with a second adjusting slit 224, the second adjusting slit 224 extends from the free end of the second bolt cone part 212 to the middle part of the inner cylinder 22 and penetrates from the inner wall of the second bolt cone part 212 to the outer wall, the first universal plug 24 is provided with a first rib penetrating hole 241 for the anchor rod body 10 to penetrate and a first grouting pipe penetrating hole 243 for grouting, and the second universal plug 25 is provided with a second rib penetrating hole for the anchor rod body 10 to penetrate and a second grouting pipe penetrating hole for grouting.

As an optimized mode of the utility model, first general purpose stopper 24 is equipped with first spacing cap 244 along axial one end, first general purpose stopper 24 is equipped with first chamfer portion 245 along the axial other end, second general purpose stopper 25 is equipped with the spacing cap of second along axial one end, second general purpose stopper 25 is equipped with second chamfer portion along the axial other end. The outer diameter of the first stop cap 244 and the outer diameter of the second stop cap are both larger than the inner diameter of the inner barrel 22.

As a preferred embodiment of the present invention, the outer cylinder 21 has a first arc-shaped guide surface 211 and a second arc-shaped guide surface 212 formed at both ends in the axial direction. By adopting the structure, when the anchor rod body 10 is placed into the drilled hole 100, the cutting and disturbance of the reinforcing steel bar welding support to the hole wall soil body can be effectively avoided, and the soil body residue in the drilled hole is reduced.

In a preferred embodiment of the present invention, the ribs 23 are provided in plural, and the plural ribs 23 are uniformly provided around the inner wall of the outer tube 21. As a preferred mode of the present invention, the first universal plug 24 and the second universal plug 25 have the same structure, the first slip casting pipe perforation 243 is disposed on the central axis of the first universal plug 24, the first rib penetrating holes 241 are plural, in the embodiment, the number of the first rib penetrating holes 241 is four, and the first rib penetrating holes 241 are uniformly arranged around the first slip casting pipe perforation 243.

As a preferred mode of the present invention, further include with the first muscle seam 242 of wearing of first muscle hole 241 intercommunication, first muscle seam 242 is followed the axial one end of first universal stopper 24 runs through to the other end, and first muscle seam 242 is followed the lateral wall of first universal stopper 24 runs through to first muscle hole 241. Through setting up first muscle seam 242 of wearing for the stock body of rod 10 can block fast in the first universal stopper 24, promotes the packaging efficiency. As a preferred mode of the present invention, the first universal plug 24 and the second universal plug 25 are rubber plugs.

The utility model also provides an anchor rod, including the stock body of rod 10, install bearing plate 60 on the stock body of rod 10 and install the centering support on the stock body of rod 10, the perforation that supplies the stock body of rod 10 to run through is offered along the axial in bearing plate 60's center, and wherein the centering support that the centering support adopted embodiment one to introduce. Wherein the stock chooses to draw and presses compound stock, draws and presses compound stock free segment, pressure-bearing anchor section and the design position of drawing the anchor section on, it can adopt following mode to carry out the installation of centering support: (1) sleeving the first locking ring 26 into the anchor rod body 10, clamping the first universal plug 24, and plugging the anchor rod body 10 into the first universal plug 24; (2) the inner cylinder 22 of the ship-shaped bracket is sleeved into the anchor rod body 10; (3) then the second universal plug 25 is clamped, the anchor rod body 10 is plugged into the second universal plug 25, and the second locking ring 27 is sleeved into the anchor rod body 10; (4) pushing the first universal plug 24 into the first latch bolt taper barrel part 211, sleeving the first locking ring 26 into the first latch bolt taper barrel part 221 and pre-screwing for 2-4 circles; the second universal plug 25 is plugged into the second lock bolt cone portion 222, the second lock ring 27 is sleeved into the second lock bolt cone portion 222 and pre-tightened for 2-4 turns: (5) after moving the centering bracket to the designed position, the first locking ring 26 and the second locking ring 27 are tightened until the centering bracket is tightly locked, and the centering bracket is installed.

Example two

Referring to fig. 13 to 23, the assembly type centering bracket includes a boat-shaped bracket and an assembly plug 40, the boat-shaped bracket includes an outer cylinder 21, an inner cylinder 22 coaxially disposed in the outer cylinder 21, and a rib plate 23 connected between the outer cylinder 21 and the inner cylinder 22, an inner wall of the inner cylinder 22 is provided with an inner screw thread portion 225, an outer wall of the assembly plug 40 is provided with an outer screw thread portion 43 engaged with the inner screw thread portion 225, the assembly plug 40 is screwed in the inner cylinder 22, the assembly plug 40 is provided with a tendon passing hole 41 through which the anchor rod body 10 passes and a grouting pipe passing hole 42 for grouting, and a first stopper 51 and a second stopper 52 for restricting the assembly plug 40 from moving on the anchor rod body 10 are respectively disposed at both axial ends of the assembly plug 40.

As a preferred embodiment of the present invention, the outer cylinder 21 has a first arc-shaped guide surface 211 and a second arc-shaped guide surface 212 formed at both ends in the axial direction.

In a preferred embodiment of the present invention, the number of the ribs 23 is plural, and the plural ribs 23 are uniformly provided around the inner wall of the outer tube 21, and in the embodiment, the number of the ribs 23 is 4.

As a preferred mode of the present invention, the first locating part 51 and the second locating part structure 52 have the same structure, the first locating part 51 includes the barrel 512 with two open ends, the barrel 512 is set to the first end and the second end along the axial both ends respectively, the first end is equipped with the spacing platform 511, the second end is equipped with the annular groove 513, be equipped with the binding wire 514 in the annular groove 513, the external diameter of the first end is greater than the external diameter of the second end, still including the adjustment lock seam 515 that sets up on the barrel 512, the adjustment lock seam 515 runs through to the outer wall from the inner wall of the barrel 512, the adjustment lock seam 515 extends from the second end to the first end.

As a preferred mode of the present invention, the reinforcement penetrating hole 41 is plural, the grouting pipe penetrating hole 42 is disposed on the central axis of the assembling plug 40, and plural the reinforcement penetrating hole 41 is uniformly annularly disposed around the grouting pipe penetrating hole 42.

As a preferable mode of the present invention, the length of the inner thread part 225 of the inner tube 22 is 10 to 30mm longer than the length of the outer thread part 43 of the assembly plug 40, and the length of the inner thread part 225 of the inner tube 22 is 10 to 30mm shorter than the length of the inner tube 22.

The utility model also provides an anchor rod, including the stock body of rod 10, install bearing plate 60 on the stock body of rod 10 and install the centering support on the stock body of rod 10, the perforation that supplies the stock body of rod 10 to run through is offered along the axial in bearing plate 60's center, and the centering support in embodiment two is adopted to the centering support. The utility model discloses when the installation, embolia the stock body of rod 10 in proper order with first locating part 51, assembly stopper 40 and second locating part 52 after the design position, support first locating part 51 and second locating part 52 tightly assembly stopper 40, it is fixed to screw up respectively with tying up the silk 514 on the annular groove 513 of first locating part 51 and second locating part 52, embolias the outer thread portion 43 of assembly stopper 40 with the inner tube 22 rotation of ship type support again, to tightly ending.

The centering bracket of the utility model adopts an assembly scheme, the on-site assembly is very convenient, and the complex procedures of cutting, bending, welding and the like of the welding reinforcing steel bar bracket and the consumption of the reinforcing steel bar are avoided; the boat-shaped bracket adopted by the centering support of the utility model is a cylindrical bracket, has large contact area with the hole wall and small contact pressure, can not sink into the soil body of the hole wall, can ensure that the anchor rod body 10 is always in the middle position in the construction process, and ensures the bonding force between the anchor rod body 10 and the grouting body 300; the utility model discloses the assembly stopper 40 of centering support can be according to the market demand, and the muscle hole 41 quantity and the adjustment diameter are worn to the processing difference, satisfy the engineering needs of the different stock body of rod 10 quantity and diameter, have good commonality.

EXAMPLE III

Referring to fig. 24 to 27, the utility model also provides an expand shell bearing plate, including the toper bearing plate, the through-hole 611 that supplies the stock body of rod 10 to run through is offered along the axial at the center of toper bearing plate, the toper bearing plate has flat plate portion 61 and forms the toper portion 62 on the flat plate portion 61, flat plate portion 61 and toper portion 62 integrated into one piece, and toper portion 62 is established respectively to link and free end along axial both ends, and the external diameter of link is greater than the external diameter of free end, and the link forms annular extrusion platform 63 with flat plate portion 61's junction, is equipped with first annular on the annular extrusion platform 63 and lets pressure pad 64. As a preferred mode of the present invention, a second annular pressure pad 65 is fixed on the end face of the free end.

In a preferred embodiment of the present invention, the length of the tapered portion 62 in the axial direction is 0.5 to 1.5 times the outer diameter of the flat plate portion 61. As a preferred mode of the present invention, the inclination angle of the conical surface of the conical portion 62 is 5 ° to 20 °, that is, the included angle between the outer wall of the conical portion 62 and the central axis. As an optimized mode of the utility model, the thickness of pressure pad 64 is let to first annular with the thickness that pressure pad 65 was let to the second annular is 2 ~ 10 mm. As a preferred mode of the present invention, the first ring-shaped pressure pad 64 and the second ring-shaped pressure pad 65 are both low elastic modulus ring-shaped pads.

The utility model also provides an anchor rod, which comprises an anchor rod body 10 and a conical bearing plate arranged on the anchor rod body 10, wherein the conical bearing plate in the third embodiment is adopted, the anchor rod body 10 is arranged in the through hole 611 in a penetrating way, 1 or more anchor rod bodies 10 are provided,

as an optimized mode of the utility model, the stock body of rod 10 overcoat be equipped with the sleeve pipe 11 that the stock body of rod 10 corresponds, the stock body of rod 10 in the one end of flat plate portion 61 is equipped with extrusion cover 12, extrusion cover 12 with flat plate portion 61 is fixed through spot welding to form solder joint 121. In this embodiment, the anchor rod body 10 is one piece and is sleeved with a sleeve 11 throughout its length.

The utility model provides the mechanism that improves stock resistance to plucking bearing capacity is: when the stock was exerting prestressing force, the injection body can be extruded to the toper bearing plate, because be equipped with first annular on the annular extrusion platform 63 and let the pressure pad 64, be fixed with the second annular on the terminal surface of free end and let pressure pad 65, can release certain deformation when the toper bearing plate can extrude the injection body, produces certain "letting to press" the deformation promptly. In the process of yielding: (1) the conical surface of the conical part 62 can radially extrude peripheral grouting bodies to enable the grouting bodies to radially expand and to be similar to expansion bolts, so that the grouting bodies extrude peripheral rock-soil bodies, and the normal stress of the grouting bodies and the rock-soil body interface is greatly increased due to the reverse constraint action of the peripheral rock-soil bodies on the grouting bodies, so that the frictional resistance of the grouting bodies and the rock-soil body interface is obviously enhanced; (2) the flat plate part 61 can extrude the grouting body along the axial direction of the anchor rod, so that the tendency of pushing the grouting body out of the drilled hole is generated, on one hand, the adhesive force between the grouting body and the rock-soil body in the full-length anchoring section range of the anchor rod is overcome, and on the other hand, the friction force which is obviously increased due to the lateral expansion of the grouting body at the periphery of the expansion shell bearing plate is overcome. Based on the reasons in the two aspects, the expansion shell bearing plate enables the uplift resistance bearing capacity of the anchor rod to be greatly improved.

Example four

Referring to fig. 28 to 38, the wheel type grout stopping tire comprises a wheel hub 80 and a tire 70 sleeved on the wheel hub 80, the wheel hub 80 can be a rubber wheel hub, an inflation tube connector 71 is arranged on the tire 70, the inflation tube connector 71 is connected with an inflation tube 72 for inflating the tire 70, and a rib penetrating hole 41 for allowing the anchor rod body 10 to penetrate through and a grouting tube penetrating hole 42 for allowing the grouting tube to penetrate through are arranged on the wheel hub 80. The hub 80 is respectively provided with a first tapered lock 81 and a second tapered lock 82 at two ends along the axial direction, the first tapered lock 81 is provided with a first external thread, the second tapered lock 82 is provided with a second external thread, the anchor rod further comprises a first lock ring 91 for locking the first tapered lock 81 on the anchor rod body 10 and a second lock ring 92 for locking the second tapered lock 82 on the anchor rod body 10, the first lock ring 91 is sleeved on the first tapered lock 81, the second lock ring 92 is sleeved on the second tapered lock 82, the first lock ring 91 is provided with a first internal thread 911 matched with the first external thread, the second lock ring 92 is provided with a second internal thread 921 matched with the second external thread, the first tapered lock 81 is provided with a plurality of first lock slits 83, the first lock slits 83 penetrate from the outer wall to the inner wall of the first tapered lock and extend from the free end of the first tapered lock 81 to the hub 80, a plurality of second locking slits 84 are provided on the second tapered end 82, and the second locking slits 84 extend from the outer wall to the inner wall of the second tapered end 82 and extend from the free end of the second tapered end 82 to the hub 80. The utility model discloses in, first tapered lock 81 and second tapered lock 82 integrated into one piece are at the axial both ends of wheel hub 80, from terminal surface (being the free end) to wheel hub 80's middle part direction, first tapered lock 81's external diameter crescent, second tapered lock 82's external diameter crescent.

In a preferred embodiment of the present invention, the tire 70 is a rubber tire, the hub 80 is provided with a hub groove 85 for mounting the tire 70, and the outer diameter of the hub groove 85 is larger than the inner diameter of the tire 70 in the initial state. The tire 70 is nested into the hub groove 85 by elastic expansion.

The utility model also provides an anchor rod, including the anchor rod body 10 with install the bearing plate 60 on the anchor rod body 10, the perforation that supplies the anchor rod body 10 to run through is offered along the axial in the center of bearing plate 60, still including installing the wheeled thick liquid child of ending on the anchor rod body 10, the wheeled thick liquid child of ending is including adopting the wheeled thick liquid child of ending of embodiment four.

As the utility model discloses an optimal mode, bearing plate 60 is fixed on the stock body of rod 10 through extrusion cover and spacing clamp, and extrusion cover 12 and spacing clamp 13 are established respectively at the axial both ends of bearing plate 60, and 11 covers of sleeve pipe are established on the stock body of rod 10 that is located between anchor head to the bearing plate 60.

By adopting the technical scheme of the utility model, the wheel hub 80 and the tire 70 of the wheel type grout stopping tire can be produced in batch, which is very convenient; the hub 80, the tire 70 and the locking ring can be assembled on site, and construction is very convenient; the hub 80 can be provided with different reinforcement penetrating holes 41 according to the number and the diameter of the anchor rod bodies 10, so that the universality is strong; the tyre 70 can be tightly contacted with the hole wall of the drill hole 100 through inflation pressure, and the isolation or sealing effect is stronger, safe and reliable. The utility model discloses can take following application mode:

application example 1, referring to fig. 35 to 36, when the wheel type grout stopping tire of the fourth embodiment is used for a tension-compression composite anchor rod and used for isolating grouting of a free section (L1) and an anchoring section (L2) of the anchor rod, the method comprises the following steps:

(1) sleeving the tire 70 on the hub groove 85 of the hub 80, and connecting the inflation tube 72 to the inflation tube connector 71 of the tire 70; (2) the first locking ring 91 and the second locking ring 92 are respectively slightly sleeved at two ends of the rubber hub 80, and then the rubber hub 80 penetrates into the designed position of the tension-compression composite anchor rod body 10 and then penetrates into the grouting pipe 90; (3) locking a first locking ring 91 and a second locking ring 92 at two ends of the rubber hub 80, namely completing the installation of the wheel type grout stopping tire on the anchor rod body 10; (4) placing the anchor rod body 10 into the anchor bore hole 100; grouting into the borehole 100 through the grouting pipe 90, and stopping grouting when the grouting continuously overflows from the orifice of the borehole 100, as shown in fig. 35; (5) after the tire 70 is inflated to the design pressure, the inlet valve of the inflation tube 72 is closed, as shown in fig. 36; (6) after the strength of the grouting body meets the design requirement, the inflation tube 72 is opened, the gas in the tire 70 is discharged, and the grouting body separation of the free section (L1) and the anchoring section (L2) of the anchor rod is completed.

Application example 2, referring to fig. 37 to 38, when the wheel type grout stopping tire of the fourth embodiment is used for elevation anchor grouting and isolating anchor free section (L1) and anchor section (L2) grouting, the method comprises the following steps:

(1) sleeving the rubber tire 70 on the hub groove 85 of the first support hub 80, and connecting the inflation tube 72 to the inflation tube connector 71 of the tire 70; (2) the first locking ring 91 and the second locking ring 92 are respectively slightly sleeved at two ends of the rubber hub 80, then the rubber hub 80 is inserted into the junction of the anchor rod free section (L1) and the anchoring section (L2) of the tension-compression composite anchor rod body 10, and then the exhaust pipe 200 is inserted to the bottom of the anchor rod, and the exhaust pipe 200 is inserted into a through hole of the grouting pipe through hole 42 of the wheel type grout stopping tire; (3) locking a first locking ring 91 and a second locking ring 92 at two ends of the rubber hub 80, namely completing the installation of the first wheel type grout stopping tire on the anchor rod body 10; (4) fixing the second support boss 80 sleeved into the tire 70 on the anchor rod body 10 at the hole outlet of the drill hole 100; then the anchor rod body 10 is placed into the anchor rod borehole 100; (5) a grouting pipe 90 with a short length is inserted into the opening of the drill hole 100, and the inflation pipe 72 is closed after the tire 70 mounted on the second support hub 80 is inflated to the design pressure, so that the sealed drill hole 100 is completed;

(6) grouting into the drill hole 100 through the grouting pipe 90, stopping grouting when the exhaust pipe 200 overflows with grout, and closing the grouting pipe 90; as shown in fig. 37; (7) after inflating the tire 70 mounted on the first support hub 80 to the design pressure, the inflation tube inlet valve is closed, as shown in FIG. 38; (8) after the strength of the grouting body meets the design requirement, the inflation tube 72 connected with the tire 70 on the first support wheel hub 80 is opened, and the gas in the tire 70 is discharged, namely, the grouting body separation of the free section (L1) and the anchoring section (L2) of the anchor rod is completed.

EXAMPLE five

Referring to fig. 39 to 42, the assembled integral bearing plate includes a bearing plate 60 and further includes four sleeves 67 fixed on the bearing plate 60, in the embodiment, the number of the sleeves 67 is four, and the four sleeves 67 are uniformly arranged around the center of the bearing plate 60, of course, the present invention is not limited to four, the bearing plate 60 is provided with a tie bar hole 66 for penetrating the anchor rod body 10, the inner wall of the tie bar hole 66 is provided with an internal thread 672, the sleeves 67 have an inner hole 671 with the same diameter as the tie bar hole 66, the sleeves 67 are coaxially arranged with the tie bar hole 66, the inner hole 671 is provided with an internal thread 672 with the same diameter as the tie bar hole 66, the anchor rod body 10 includes a bearing anchor segment rod body 101 and a tension anchor segment rod body 102, the bearing anchor segment rod body 101 and the tension anchor segment rod body 102 are respectively arranged at two sides of the bearing plate 60, the end of the bearing anchor segment rod body 101 has a first thread segment 103 and the end of the tension segment rod body 102 has a second thread 672 And the segment 104 is provided, wherein the first threaded segment 103 is matched with the internal thread 672 of the connecting rib hole 66, and the second threaded segment 104 is matched with the internal thread 672 of the inner hole 671.

As a preferred embodiment of the present invention, the present invention further includes a reinforcement plate 671 for reinforcing the sleeve 67, wherein the reinforcement plate 671, the sleeve 67 and the bearing plate 60 are integrally formed.

As a preferable mode of the present invention, the reinforcement plate 671 is plural, in an embodiment, two reinforcement plates 671 are provided for each sleeve 67, the plural reinforcement plates 671 are uniformly provided along the circumference of the sleeve 67 (when two reinforcement plates 671 are symmetrically provided), and the reinforcement plates 671 are triangular along the axial direction of the sleeve 67. As a preferred mode of the present invention, the thickness of the bearing plate 60 is 15-40mm, and the diameter of the connecting rib hole 66 is 16-32 mm. As a preferred mode of the present invention, the length of the sleeve 67 is 30-100mm, and the wall thickness of the sleeve 67 is 5-20 mm.

The utility model also provides an anchor rod, which comprises an anchor rod body 10, a bearing plate 60 arranged on the anchor rod body 10 and a centering bracket arranged on the anchor rod body 10, wherein the anchor rod body 10 comprises a bearing anchoring section rod body 101, a tension anchoring section rod body 102 and a sleeve 67 fixed on the bearing plate 60, the bearing plate 60 is provided with a connecting rib hole 66 for penetrating the anchor rod body 10, the inner wall of the connecting rib hole 66 is provided with an internal thread 672, the sleeve 67 has an inner bore 671 of the same diameter as the dowel hole 66, the inner bore 671 being provided with an internal thread 672 identical to the dowel hole 66, the pressure-bearing anchor section rod body 101 is provided with a first threaded section 103, the tension-bearing anchor section rod body 102 is provided with a second threaded section 104, the first threaded section 103 is matched with the internal thread 672 of the joint hole 66, and the second threaded section 104 is matched with the internal thread 672 of the inner hole 671. The utility model discloses in, the cover is equipped with sleeve pipe 11 on the pressure-bearing anchor section body of rod 101, and wherein the centering support that introduces in other embodiments can be adopted to the centering support, and slip casting pipe 90 can pass between the inner wall of pressure-bearing plate 60 and drilling 100, or set up through-hole 611 at pressure-bearing plate 60 center and be used for wearing to establish slip casting pipe 90. The utility model discloses a whole bearing plate of assembled construction steps as follows:

(1) cutting the pressure-bearing anchoring section rod body 101 and the tension anchoring section rod body 102 according to design requirements, and respectively processing a first threaded section 103 of the pressure-bearing anchoring section rod body 101 and a second threaded section 104 of the tension anchoring section rod body 102; (2) penetrating a first thread section 103 of the pressure-bearing anchoring section rod body 101 into the rib connecting hole 66 of the pressure-bearing plate 60, and screwing until the first thread section is tight; (3) threading the second threaded segment 104 of the tensioned anchor segment rod 102 into the inner bore 671 of the sleeve 67 and screwing it tight; (4) and sleeving a sleeve on the rod body 101 of the pressure-bearing anchoring section to complete the installation of the tension-compression composite anchor rod.

The utility model discloses a wheeled grout stopping tire can be used in the stock of embodiment one, embodiment two or embodiment three, embodiment five. The utility model discloses an expand shell bearing plate can be used in the stock in embodiment one, embodiment two or embodiment four to replace the bearing plate in embodiment one, embodiment two or embodiment four, can carry on spacingly through extrusion cover and spacing clamp simultaneously.

The product form of the present invention is not limited to the drawings and embodiments of the present application, and any person can properly change or modify the product form of the present invention without departing from the scope of the present invention.

Claims (7)

1. Shell bearing plate expands, including toper bearing plate, the through-hole that supplies the stock body of rod to run through is seted up along the axial in the center of toper bearing plate, its characterized in that: the tapered bearing plate is provided with a flat plate part and a tapered part formed on the flat plate part, the tapered part is respectively arranged at two ends in the axial direction to be a connecting end and a free end, the outer diameter of the connecting end is larger than that of the free end, an annular extrusion platform is formed at the connecting part of the connecting end and the flat plate part, and a first annular pressure-yielding pad is arranged on the annular extrusion platform.

2. The expansion shell bearing plate of claim 1, wherein: and a second annular pressure-yielding pad is fixed on the end face of the free end.

3. The expansion shell bearing plate of claim 1, wherein: the length of the tapered portion in the axial direction is 0.5 to 1.5 times the outer diameter of the flat plate portion.

4. The expansion shell bearing plate of claim 3, wherein: the inclination angle of the conical surface of the conical part is 5-20 degrees.

5. The expansion shell bearing plate of claim 2, wherein: the thickness that the pressure pad was let to first annular with the thickness that the pressure pad was let to the second annular is 2 ~ 10 mm.

6. The expansion shell bearing plate of claim 2, wherein: the first annular lets the pressure pad with the second annular lets the pressure pad be low elasticity modulus annular pad.

7. The utility model provides an anchor rod, includes the anchor rod body and installs the toper bearing plate on the anchor rod body, and the through-hole that supplies the anchor rod body to run through, its characterized in that are seted up along the axial at the center of toper bearing plate: the toper bearing plate has the plat plate portion and forms the toper portion on the plat plate portion, and the toper portion is established respectively to link and free end along axial both ends, and the external diameter of link is greater than the external diameter of free end, and the link forms annular extrusion platform with the junction of plat plate portion, and annular extrusion bench is equipped with first annular and lets the pressure pad, and the stock body of rod full length scope sets up the sleeve pipe, and the stock body of rod bottom is provided with the extrusion cover, and the extrusion cover adopts spot welding fixed with the plat plate portion of toper bearing plate.

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