CN219260999U

CN219260999U - Regulation and control loader for pressure dispersion type anchor rod

Info

Publication number: CN219260999U
Application number: CN202320273761.9U
Authority: CN
Inventors: 李冬晗; 李宏
Original assignee: Shenzhen Pusaite Construction Engineering Technology Co ltd
Current assignee: Shenzhen Pusaite Construction Engineering Technology Co ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-06-27
Anticipated expiration: 2033-01-31

Abstract

The utility model discloses a regulating and controlling carrier for a pressure dispersion type anchor rod, which comprises a carrier and a fixing sleeve, wherein the carrier is sleeved outside a threaded steel bar, the fixing sleeve is arranged between the carrier and the threaded steel bar, the fixing sleeve is in threaded connection with the threaded steel bar, an upper section of sleeve is arranged between the top of the inner wall of the carrier and the threaded steel bar, a sleeve plug is arranged at the bottom of the inner wall of the carrier, the top of a lower section of sleeve is arranged in the sleeve plug, the upper section of sleeve and the lower section of sleeve are all surrounded outside the threaded steel bar, and sealing caps are arranged at the periphery of the top of the carrier and the periphery of the bottom of the sleeve plug and are in threaded connection with the carrier or the sleeve plug. The regulating and controlling loader for the pressure dispersion type anchor rod can share the load of the anchor rod, and distributes the load to different parts of an anchoring section through the mutual noninterference of the tendons, so that the anchor rod has higher pulling resistance, and meanwhile, the anchor rod is matched with the sleeve, so that the anchor rod has higher waterproof, seepage-proof and corrosion-proof levels.

Description

Regulation and control loader for pressure dispersion type anchor rod

Technical Field

The utility model relates to the technical field of rock-soil anchoring, in particular to a regulating and controlling carrier for a pressure-dispersing type anchor rod.

Background

With the continuous expansion of underground space development, the rock-soil anchoring technology in China is rapidly developed, wherein the comprehensive performance of pressure dispersion type anchor rods in anchor rod series is excellent and is accepted by industry, but because the anchor rod tendons adopt unbonded steel strands or steel strands, the construction process is relatively complicated, and the popularization and the use of the pressure dispersion type anchor rods are influenced. Therefore, the finish rolling screw thread reinforcing steel bar anti-floating anchor rod body with relatively simple construction process is widely applied. In order to ensure that the finish rolling deformed bar anchor rod is not corroded by the outside, a heat shrinkage sleeve is arranged on the outer surface of the anchor rod body to isolate the anchor rod. Meanwhile, the supporting bodies are arranged at different positions and are connected with the finish rolling screw reinforced bars through threads, and when the anchor rod is subjected to external force, the anchor rod is transmitted to the terminal supporting bodies one by one from top to bottom through the bars, so that the anchor body is stressed to generate cracks, and the corrosion resistance level of the anchor rod cannot meet the design requirement. In addition, the bearing capacity of the anchor rod is greatly limited due to uneven stress of the bearing body.

Disclosure of Invention

The utility model aims to provide a regulating and controlling bearing device for a pressure dispersion type anchor rod, which can share the pulling-resistant bearing capacity of a threaded reinforcing steel bar and is matched with a sleeve to protect the threaded reinforcing steel bar from being corroded by groundwater.

In order to achieve the above purpose, the utility model provides a regulating and controlling carrier for a pressure dispersion type anchor rod, which comprises a carrier and a fixing sleeve, wherein the carrier is sleeved outside a threaded steel bar, the fixing sleeve is arranged between the carrier and the threaded steel bar, the fixing sleeve is in threaded connection with the threaded steel bar, an upper section sleeve is arranged between the top of the inner wall of the carrier and the threaded steel bar, a sleeve plug is arranged at the bottom of the inner wall of the carrier, the top of a lower section sleeve is arranged in the sleeve plug, the upper section sleeve and the lower section sleeve are all surrounded outside the threaded steel bar, and sealing caps are arranged on the periphery of the top of the carrier and the periphery of the bottom of the sleeve plug and are in threaded connection with the carrier or the sleeve plug.

Preferably, the middle part of the supporting body is provided with a fixed disc, the outer edge of the fixed disc is provided with a plurality of arc-shaped notches, and a plurality of triangular fixed wings are arranged between the bottom surface of the fixed disc and the outer wall of the bottom of the supporting body.

Preferably, the fixing sleeve is located between the fixing disc and the sleeve plug, a notch is formed in the outer side of the bottom end of the fixing sleeve, a protruding edge is formed in the outer side of the top of the sleeve plug, and the notch is matched with the protruding edge in position.

Preferably, the unthreaded end of the sealing cap is contacted with the upper section sleeve or the lower section sleeve, and water stop rings are arranged between the inner wall of the sealing cap and the upper section sleeve or the lower section sleeve, and between the outer wall of the sleeve plug and the inner wall of the supporting body.

Therefore, the regulating and controlling loader for the pressure dispersion type anchor rod adopts the structure, the anchor rod load is dispersed to different parts of the anchoring section through the supporting body, so that the bonding stress is uniformly distributed on the whole anchoring section, the stratum strength within the whole anchor length range of the anchor rod is invoked to the maximum extent, the anchor rod bearing capacity can be improved in proportion to the increase of the length of the anchoring section, and the corresponding space is reserved for the stress deformation of the twisted steel by the fixing sleeve in the loader. Meanwhile, the supporting body and the sleeve plug are inserted into the sleeves at the upper end and the lower end, and the sealing cap and the water stop ring are matched to form a sealing structure, so that groundwater is prevented from corroding the twisted steel bars.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic view of an embodiment of a modulating carrier for a pressure-dispersing bolt of the present utility model;

fig. 2 is a schematic diagram of a carrier structure according to an embodiment of the present utility model.

Reference numerals

1. A carrier; 2. a fixed wing; 3. a fixed sleeve; 4. a sleeve plug; 5. a lower casing pipe; 6. a sealing cap; 7. an upper casing; 8. a water stop ring; 9. a ledge; 10. screw-thread steel bar; 11. an arc-shaped notch; 12. a fixed plate; 13. and (5) a notch.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Examples

As shown in the figure, the regulating and controlling carrier for the pressure dispersion type anchor rod comprises a carrier 1 and a fixing sleeve 3, wherein the carrier 1 is sleeved outside a twisted steel 10. The fixed sleeve 3 is arranged between the supporting body 1 and the threaded reinforcing steel bar 10, and the fixed sleeve 3 is in threaded connection with the threaded reinforcing steel bar 10. The bottom of the inner wall of the carrier 1 is provided with a sleeve plug 4.

The middle part of the carrier 1 is provided with a fixed disk 12, and the fixed sleeve 3 is positioned between the fixed disk 12 and the sleeve plug 4. The outer edge of the fixed disk 12 is provided with a plurality of arc-shaped notches 11 for mounting grouting pipes. A plurality of triangular fixing wings 2 are arranged between the bottom surface of the fixing disc 12 and the outer wall of the bottom of the supporting body 1, and the fixing wings 2 can improve the structural strength of the fixing disc 12. The fixed disk 12 increases the contact area of the carrier 1 with the surrounding grouting body.

An upper sleeve 7 is arranged between the top of the inner wall of the supporting body 1 and the twisted steel 10, and the top end of a lower sleeve 5 is arranged in the sleeve plug 4. The upper section sleeve 7 and the lower section sleeve 5 encircle outside the screw steel bar 10 to isolate and protect the screw steel bar 10.

The top periphery of the carrier 1 and the bottom periphery of the sleeve plug 4 are both provided with a sealing cap 6, and are in threaded connection with the sealing cap 6. The top of the sealing cap 6 is contacted with the upper section sleeve 7 or the lower section sleeve 5, and a water stop ring 8 is arranged between the inner wall of the sealing cap 6 and the upper section sleeve 7 or the lower section sleeve 5 and between the outer wall of the sleeve plug 4 and the inner wall of the bottom of the supporting body 1. The water stop ring 8 can be a formed rubber ring body or a water stop strip formed by sealant of semisolid material. The water stop ring 8, the sealing cap 6 and the sleeve plug 4 are matched with the sleeve, a waterproof isolation system is respectively established at the upper side and the lower side of the supporting body 1, and groundwater is prevented from penetrating into the screw thread reinforcing steel bars 10 from the end heads of the sleeve to cause corrosion.

The bottom outside of fixed sleeve 3 is provided with breach 13, and the top outside of sleeve plug 4 corresponds and is provided with protruding edge 9, and the position of breach 13 matches with the position of protruding edge 9. The difference between the depth of the notch 13 and the height of the flange 9 is the calculated deformation elongation of the anchor rod. Therefore, the bearing body 1 can calculate the stress according to the deformation and elongation of different positions.

When the screw 10 is stretched to be longer, the fixing sleeve 3 rises with the screw 10, and the fixing sleeve 3 applies an upward force to the carrier 1, and the carrier 1 applies the force to the anchor body of the end face through the fixing plate 12. The stress displacement space is reserved between the fixed sleeve 3 and the supporting body 1, and the stress of the supporting body 1 can be regulated and controlled through the size of the reserved space.

Therefore, the regulating and controlling loader for the pressure dispersion type anchor rod adopts the structure, the anchor rod load is dispersed to each part of the anchoring section through the supporting body, the sleeve plug is spliced with the upper sleeve and the lower sleeve, and the sealing cap and the water stop ring are matched to form a sealing structure, so that the corrosion of the screw thread reinforcing steel bar by underground water is prevented.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A regulation and control loader for pressure dispersion type anchor rods, characterized in that: including supporting body and fixed sleeve, the supporting body cover establish outside the screw reinforcement, fixed sleeve set up in the supporting body with between the screw reinforcement, fixed sleeve with screw reinforcement threaded connection, the inner wall top of supporting body with be provided with upper segment sleeve pipe between the screw reinforcement, the inner wall bottom of supporting body is provided with the sleeve pipe plug, be provided with lower segment sheathed tube top in the sleeve pipe plug, upper segment sleeve pipe with lower segment sleeve pipe all encircles outside the screw reinforcement, the top periphery of supporting body with the bottom periphery of sleeve pipe plug all is provided with the sealing cap, the sealing cap with supporting body or sleeve pipe plug threaded connection.

2. A regulating carrier for a pressure-dispersing bolt according to claim 1, wherein: the middle part of the supporting body is provided with a fixed disc, the outer edge of the fixed disc is provided with a plurality of arc-shaped notches, and a plurality of triangular fixed wings are arranged between the bottom surface of the fixed disc and the outer wall of the bottom of the supporting body.

3. A regulating carrier for a pressure-dispersing bolt according to claim 2, wherein: the fixed sleeve is located between the fixed disc and the sleeve plug, a notch is formed in the outer side of the bottom end of the fixed sleeve, a protruding edge is arranged on the outer side of the top of the sleeve plug, and the notch is matched with the protruding edge in position.

4. A regulating carrier for a pressure-dispersing bolt according to claim 1, wherein: the unthreaded end of sealing cap with upper segment sleeve pipe or lower segment sleeve pipe contacts, the inner wall of sealing cap with between upper segment sleeve pipe or the lower segment sleeve pipe, the outer wall of sleeve pipe plug with between the inner wall of supporting body all be provided with the water stop ring.