CN211256870U

CN211256870U - Expanding anchoring steel strand

Info

Publication number: CN211256870U
Application number: CN201921925819.3U
Authority: CN
Inventors: 王延兵
Original assignee: Shandong Hongtong Group Co ltd
Current assignee: Shandong Hongtong Group Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-08-14
Anticipated expiration: 2029-11-11

Abstract

An expanding anchoring steel strand, comprising a steel strand body and a tip cone, wherein an expanding cylinder and a fixed cylinder are arranged between the steel strand body and the tip cone, the fixed cylinder is connected with the expanding cylinder through a stud, the fixed cylinder is a cylinder body with a stepped hole, an expanding clamp is arranged in the expanding cylinder, the expanding clamp comprises four support rods and a spring clip, four strip-shaped grooves are distributed on the outer side wall of the expanding cylinder in the axial direction, the upper parts of the strip-shaped grooves are communicated with the central hole of the expanding cylinder, the upper end of the expanding cylinder is provided with a necking-down inserting part, a neck plate is positioned in the inner hole of the inserting part, the tip cone is inserted at the upper end of the expanding cylinder, the ring edge of the tip cone is buckled with the inserting part of the expanding cylinder, an inner inverted cone is inserted in the inserting hole surrounded by the four neck plates, the outer sides of the four neck plates are sleeved with the spring clip, the utility model can effectively increase the bonding strength of the steel strand and the anchoring agent, and enhance the, thereby ensuring the safety and stability of the river levee and the dam.

Description

Expanding anchoring steel strand

Technical Field

The utility model relates to a water conservancy bank protection field specifically is an expanding anchor steel strand wires.

Background

The steel strand is formed by twisting an outer steel strand and an inner steel strand, has the characteristics of high tensile strength and good elasticity, and is often matched with an anchor cable to reinforce the surfaces of river banks and dams in hydraulic construction engineering. In the areas with higher water conservancy slope protection, earthquake resistance and flood resistance grades, the length needing anchoring is very long, the stress strength of the steel strand is higher than that of the common steel bar, but the surface of the steel strand is smooth, the bonding degree between the steel strand and the anchoring agent is lower than that of the common steel bar, the steel strand and the anchoring agent are easy to slide due to interaction, and the tensile strength is influenced.

Disclosure of Invention

The utility model aims at providing an expanding anchor steel strand wires solves the bonding strength between current steel strand wires and the anchoring agent and hangs down, the poor technical problem of tensile strength.

The purpose of the utility model is realized with the following mode: an expanding anchoring steel strand comprises a steel strand body and a tip cone, wherein the steel strand body comprises an inner steel strand and an outer steel strand wound on the outer side of the inner steel strand, the front end of the inner steel strand extends out of a part of the outer steel strand, an expanding cylinder and a fixed cylinder are arranged between the steel strand body and the tip cone, the fixed cylinder and the expanding cylinder are connected through a stud, the fixed cylinder is a cylinder body with a stepped hole, the small-diameter end of the stepped hole is sleeved on the inner steel strand and is welded and fixed, the large-diameter end of the stepped hole is provided with an internal thread matched with the stud, an expanding clamp is arranged in the expanding cylinder and comprises four support rods and a spring clamp, each support rod comprises a horizontally arranged shoulder plate, one end of the shoulder plate is provided with a support foot extending downwards and outwards, the other end of the shoulder plate is vertically provided with a neck plate, four strip-shaped grooves are distributed on the outer side wall of the expanding cylinder in the axial direction, the upper part of each strip-shaped groove is communicated with the central hole of the, the lower extreme of centre bore is equipped with the internal thread with double-screw bolt threaded connection, expands the grafting portion that props the upper end of a section of thick bamboo and be equipped with the necking down, and the neck plate is located the hole of grafting portion, and the apical cone is pegged graft in the upper end that expands a section of thick bamboo, the apical cone includes the conical head, and the big footpath end of conical head is equipped with downwardly extending's surrounding edge, and the inboard of surrounding edge is equipped with the interior back taper with conical head body coupling, and the surrounding edge of apical cone is with expand the grafting portion looks lock joint that props a section of thick bamboo, and interior back taper is pegged graft in the spliced eye that is enclosed by four neck plates, and a spring.

Furthermore, the fixed cylinder and the expanding cylinder are matched with the outer diameter of the steel strand body, the outer conical surface of the tip cone is a friction surface, and annular bulges or pockmarks can be arranged on the outer conical surface.

Furthermore, a limit groove is vertically formed in the annular edge of the tip cone, a guide post is additionally arranged, the limit post penetrates through the limit groove and is inwards fixedly connected with the inserting part of the expanding and supporting barrel, and the guide post is a stud or a screw.

Furthermore, the outer side of the upper end of the neck plate is provided with an inwards concave clamping groove, and the four clamping grooves of the expanding clamp are positioned on the same annular surface.

The installation mode is as follows: 1. stripping an outer steel strand of the steel strand body by a section to expose an inner steel strand; sleeving and welding the fixed cylinder on the inner steel strand; 2. the supporting feet of the four supporting rods are placed in the strip-shaped grooves of the expanding and supporting barrel, neck plates of the supporting rods extend into inner holes of the inserting parts from the upper ends of the strip-shaped grooves, then the spring clamps are clamped in the clamping grooves of the supporting rods from the upper ends of the inner holes of the inserting parts, finally, the top cone is inserted into the upper end of the expanding and supporting barrel, and the neck of the expanding and supporting clamp embraces the inner inverted cone of the top cone; 3. a screw rod penetrates through the limiting groove and is transversely screwed on the inserting part of the expanding cylinder, so that the tip cone and the expanding cylinder are connected together; 4. the fixed cylinder and the expanding cylinder are connected through a stud thread, and the expanding cylinder with the tip cone is fixed with the steel strand body.

When in use, deep holes are arranged on the surfaces of the river levee and the dam in advance, then the anchoring agent is injected into the deep holes, and the utility model is inserted into the deep holes in which the anchoring agent is embedded; slightly wait a period of time after, pull backward and establish the utility model discloses, expand and prop a relative apical cone of section of thick bamboo and move backward, expand and prop the neck that presss from both sides and break away from interior back taper after, four neck boards contract in under the effect of spring clip, expand and prop the spike that presss from both sides then outwards expansion, so just increased the frictional force that the steel strand wires pulled outward.

The utility model discloses convenient operation during the use can effectively increase the bonding strength of steel strand wires and anchoring agent, strengthens the stability of anchor system, and then guarantees the safety and stability of river levee, dam with the anchor rope cooperation, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a perspective view of the expanding clamp;

FIG. 3 is a schematic perspective view of the expanding cylinder;

FIG. 4 is a schematic perspective view of a tip cone;

FIG. 5 is a schematic front view of the structure of FIG. 2

Fig. 6 is a schematic view of the construction of the spring clip.

In the figure: 1. the steel strand comprises a steel strand body, 2 parts of an inner steel strand, 3 parts of a fixing cylinder, 4 parts of a stud, 5 parts of a support expanding cylinder, 51 parts of a strip-shaped groove, 52 parts of a guide column, 53 parts of an inserting part, 6 parts of a support expanding clamp, 61 parts of a shoulder plate, 62 parts of a neck plate, 63 parts of a support leg, 7 parts of a tip cone, 71 parts of an inner inverted cone, 72 parts of a ring edge, 73 parts of a cone head, 74 parts of a limiting groove, 8 parts of a spring clamp and 9 parts of a clamping groove.

Detailed Description

Referring to fig. 1-6, an expanding type anchoring steel strand comprises a steel strand body 1 and a tip cone 7, wherein the steel strand body comprises an inner steel strand 2 and an outer steel strand wound on the outer side of the inner steel strand 2, the front end of the inner steel strand 2 extends out of a part of the outer steel strand, an expanding cylinder 5 and a fixed cylinder 3 are arranged between the steel strand body 1 and the tip cone 7, the fixed cylinder 3 and the expanding cylinder 5 are connected through a stud 4, the fixed cylinder 3 is a cylinder body with a stepped hole, the small-diameter end of the stepped hole is sleeved on the inner steel strand 2 and welded and fixed, the large-diameter end of the stepped hole is provided with an internal thread matched with the stud 4, an expanding clamp 6 is arranged in the expanding cylinder 5, the expanding clamp 6 is composed of four support rods and a spring clamp 8, each support rod comprises a horizontally arranged shoulder plate 61, one end of the shoulder plate 61 is provided with a support foot 63 extending downwards and outwards, the other end of the shoulder plate 61 is vertically provided with a neck plate 62, expand four bar grooves 51 of hoop distribution on the lateral wall of propping a section of thick bamboo 5, the upper portion in bar groove 51 is linked together with the centre bore that expands a section of thick bamboo 5, and the lower extreme of centre bore is equipped with the internal thread with double-screw bolt 4 threaded connection, expands the grafting portion that props 5's upper end and be equipped with the necking down, and neck plate 62 is located the hole of grafting portion, and tip cone 7 pegs graft in the upper end that expands a section of thick bamboo 5, tip cone 7 includes the conical head, and the major diameter end of conical head 73 is equipped with downwardly extending's surrounding edge 72, and the inboard of surrounding edge 72 is equipped with the interior back taper 71 with conical head body coupling, and the surrounding edge of tip cone 7 and the grafting portion looks lock joint that expands a section of thick bamboo, and interior back taper pegs graft in the spliced eye that is enclosed by four neck plates, and a spring clip is cup jointed in the outside of four neck plates, and a spacing groove is seted up vertically on the surrounding edge of tip cone 7, sets up a guide post in. The outer side of the upper end of the neck plate 62 is provided with an inwards concave clamping groove 9, and the four clamping grooves 9 of the expanding clamp 6 are positioned on the same annular surface.

During installation: 1. stripping a section of the outer steel strand of the steel strand body 1 to expose the inner steel strand 2; sleeving and welding the fixed cylinder 3 on the inner steel strand 2; 2. the supporting feet 63 of the four supporting rods are placed in the strip-shaped grooves 51 of the expanding cylinder 5, the neck plates 62 of the supporting rods extend into the inner holes of the inserting parts 53 from the upper ends of the strip-shaped grooves 51, then the spring clamps 8 are clamped in the clamping grooves 9 of the supporting rods from the upper ends of the inner holes of the inserting parts 53, finally the top cone 7 is inserted into the upper end of the expanding cylinder 5, and the neck parts of the expanding clamps hold the inner inverted cone 71 of the top cone 7; 3. a screw rod penetrates through the limiting groove 74 and is transversely screwed at the inserting part of the expanding cylinder 5, so that the tip cone 7 is connected with the expanding cylinder 5; 4. the fixed cylinder 3 is in threaded connection with the expanding cylinder 5 through the stud 4, and the expanding cylinder 5 with the tip cone 7 is fixed with the steel strand body 1.

When in use: drilling deep holes on the surfaces of a river levee and a dam in advance, then injecting an anchoring agent into the deep holes, and inserting the utility model into the deep holes in which the anchoring agent is embedded; after a period of time, draw backward and establish the utility model discloses, expand and prop a 5 relative apical cone 7 and move backward, expand and prop the neck that presss from both sides and break away from interior back taper 71 after, four neck boards 62 contract under the effect of spring clip 8, expand and prop the spike 63 that presss from both sides 6 and then outwards expand, so just increased the frictional force that the steel strand wires were drawn outward.

Claims

1. The utility model provides an expanding anchor steel strand wires, includes steel strand wires body (1) and tip cone (7), the steel strand wires body includes interior steel strand wires (2) and around putting the outer steel strand wires in interior steel strand wires (2) outside, and the front end of interior steel strand wires (2) stretches out outer steel strand wires partly, its characterized in that: an expanding and supporting cylinder (5) and a fixed cylinder (3) are arranged between a steel strand body (1) and a tip cone (7), the fixed cylinder (3) and the expanding and supporting cylinder (5) are connected through a stud (4), the fixed cylinder (3) is a cylinder body with a stepped hole, the small-diameter end of the stepped hole is sleeved on an inner steel strand (2) and is welded and fixed, the large-diameter end of the stepped hole is provided with an internal thread matched with the stud (4), an expanding and supporting clamp (6) is arranged in the expanding and supporting cylinder (5), the expanding and supporting clamp (6) consists of four supporting rods and a spring clamp (8), each supporting rod comprises a horizontally arranged shoulder plate (61), one end of the shoulder plate (61) is provided with a supporting foot (63) extending downwards and outwards, the other end of the shoulder plate (61) is vertically provided with a neck plate (62), four strip grooves (51) are distributed on the outer side wall of the expanding and supporting cylinder (5) in the circumferential direction, the upper portion of each strip groove (51) is communicated with the expanding and supporting, the lower extreme of centre bore is equipped with the internal thread with double-screw bolt (4) threaded connection, expands the upper end that props a section of thick bamboo (5) and is equipped with the grafting portion of necking down, and neck board (62) are located the hole of grafting portion, and apical cone (7) are pegged graft in expanding the upper end that props a section of thick bamboo (5), apical cone (7) are including the conical head, and the major diameter end of conical head (73) is equipped with downwardly extending's ring limit (72), and the inboard of ring limit (72) is equipped with interior back taper (71) with conical head body coupling, and the ring limit of apical cone (7) is with to expand the grafting portion looks lock joint that props a section of thick bamboo, and interior back taper is pegged graft in the spliced eye that is enclosed by four neck boards, and a.

2. The expandable anchoring strand as claimed in claim 1, wherein: a limit groove is vertically formed in the annular edge of the tip cone (7), a guide post is additionally arranged, and the limit post penetrates through the limit groove to be inwards fixedly connected with the inserting part of the expanding and supporting barrel.

3. The expandable anchoring strand as claimed in claim 1, wherein: the outer side of the upper end of the neck plate (62) is provided with an inwards concave clamping groove (9), and the four clamping grooves (9) of the expanding clamp (6) are positioned on the same annular surface.