CN217586629U - Displacement monitoring and mounting device for anchor rod drawing test - Google Patents
Displacement monitoring and mounting device for anchor rod drawing test Download PDFInfo
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- CN217586629U CN217586629U CN202221704277.9U CN202221704277U CN217586629U CN 217586629 U CN217586629 U CN 217586629U CN 202221704277 U CN202221704277 U CN 202221704277U CN 217586629 U CN217586629 U CN 217586629U
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Abstract
The application discloses a displacement monitoring and mounting device for an anchor rod drawing test, which comprises a counter-force supporting seat, wherein the counter-force supporting seat is sleeved on an exposed part of an anchor rod; the counter-force supporting seat supports a center-penetrating jack, and the extending end of a piston of the center-penetrating jack faces outwards; a cylinder is supported by the piston of the center-penetrating jack, and a clamping pin is wedged between the cylinder and the anchor rod; a pull rope type displacement sensor is arranged on the side wall of the counter-force supporting seat, and the displacement sensor is connected with a pull rope; the anchor rod is provided with stay cord location structure, and stay cord location structure includes first holder, and first holder is provided with radially stretches out branch along the anchor rod, and branch is provided with the second holder, and the other end of stay cord is connected to the second holder. The beneficial effects of the scheme can be known from the description of the scheme, the structure is simple, the design is reasonable, and the numerical value of the pressure loss of the center-penetrating jack can be measured within a certain time under the set pressure; and the numerical value of the length of the end part of the anchor rod pulled out along with the pressure change of the piercing jack can be measured.
Description
Technical Field
The utility model relates to a building engineering field especially relates to an anchor rod is drawn experimental with displacement monitoring installation device.
Background
The anchor rod has the technical characteristics of simple process, timely support and full adjustment of the self-bearing capacity of the surrounding rock and the economic characteristics of low cost, is widely applied to foundation pit protection engineering, makes a great contribution to foundation pit support and becomes an important technical means of foundation pit support. The stock can hang the weak country rock around the anchor hole in the stable rock stratum in the deep, initiatively bears the upper portion load and effectively hinders the deformation of anchor hole country rock, improves the overall stability of tunnel country rock. Because the force borne by the anchor rod during actual working comes from the force generated by plastic deformation and crushing and swelling deformation of the rock stratum between the anchoring end and the supporting plate, the stress condition of the anchor rod is completely the same as that of a drawing test. Therefore, for the end of the bolt and for the lengthened anchorage, the actual anchorage capacity of the bolt can be reflected by the drawing test. At present, the monitoring of the anchor rod is mainly to clamp the exposed end of the anchor rod by a clamp, and to push the clamp for a certain time under the set pressure by a drawing pushing bar, so as to observe the pressure change of the drawing pushing bar, and to judge whether the pressure reduction value meets the requirement or not, so as to replace the requirement that the length of the anchor rod after being drawn meets the requirement. However, such monitoring does not actually see the effect of the deformation between the clamp and the bolt on the drawn length of the bolt.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pressure loss value of the punching jack, which is simple in structure and reasonable in design, can measure the pressure loss value of the punching jack within a certain time under the set pressure and aims to overcome the defects of the prior art; and can measure along with the change of the pressure of the penetrating jack, the displacement monitoring installation device for the anchor rod drawing test of the numerical value of the length of the end part of the anchor rod drawn out.
In order to achieve the purpose, the utility model provides a displacement monitoring and mounting device for anchor rod drawing test, which comprises a counter-force supporting seat, wherein the counter-force supporting seat is sleeved on the exposed part of the anchor rod and is in close contact with the side wall of a foundation pit;
the counter-force supporting seat supports a center-penetrating jack, and the extending end of a piston of the center-penetrating jack faces outwards;
a cylinder is supported by the piston of the center-penetrating jack, and a clamping pin is wedged between the cylinder and the anchor rod;
a pull rope type displacement sensor is arranged on the side wall of the counter-force supporting seat, and the displacement sensor is connected with a pull rope;
the anchor rod is provided with a pull rope positioning structure, the pull rope positioning structure comprises a first clamping piece, a supporting rod is arranged on the first clamping piece and extends out of the anchor rod along the radial direction of the anchor rod, a second clamping piece is arranged on the supporting rod, and the second clamping piece is connected with the other end of the pull rope;
the displacement sensor is located the position on the counter-force supporting seat lateral wall is close to the foundation ditch lateral wall, the counter-force supporting seat lateral wall still is provided with the holding ring, the stay cord passes the holding ring, and works as the stay cord with when the foundation ditch lateral wall is perpendicular, the stay cord with the holding ring is concentric.
Further, the first clamping piece comprises a first cylinder, and the first cylinder is sleeved on the anchor rod;
the first cylinder is provided with two first clamping screws, the two first clamping screws and the support rod are positioned on the same plane, and the axial lead of the first cylinder is positioned on the plane;
the two first clamping screws and the support rod are respectively positioned on two sides of the axial lead of the first cylinder.
Furthermore, the end part of the first clamping screw rod is provided with a clamping seat, the clamping seat is in contact with the anchor rod, the diameter of the clamping seat is larger than that of the first clamping screw rod, and the contact surface of the clamping seat and the anchor rod is a plane.
Further, the second clamping piece comprises a second cylinder which is sleeved on the supporting rod;
the second cylinder is provided with a second clamping screw, the second clamping screw and the pull rope are positioned on the same plane, and the axial lead of the second cylinder is positioned on the plane;
the second clamping screw and the pull rope are respectively positioned on two sides of the axial lead of the second cylinder.
Further, the penetrating jack and the cylinder are concentric with the anchor rod.
Furthermore, the center-penetrating jack is communicated with a manual hydraulic pump.
Furthermore, the manual hydraulic pump is in signal connection with a terminal device, and the displacement sensor is in signal connection with the terminal device.
Further, the terminal device comprises a mobile phone and a computer.
The terminal equipment is provided with software for processing the pressure signal and the displacement signal. When the hydraulic anchor rod is used, the end part of the anchor rod can be pulled by the penetrating jack along with the increase of the pressure of the manual hydraulic pump. The clamping pin will penetrate further into the cylinder and clamp the anchor rod more tightly. However, the displacement of the pull rope positioning structure is completely consistent with the length of the pulled-out anchor rod end part, so that the distance of the pull rope pulled by the pull rope positioning structure is the displacement of the anchor rod end part.
The beneficial effects of the scheme can be known from the description of the scheme, the structure is simple, the design is reasonable, and the numerical value of the pressure loss of the center-penetrating jack can be measured within a certain time under the set pressure; and the numerical value of the length of the end part of the anchor rod pulled out along with the pressure change of the piercing jack can be measured.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the positioning ring of the present invention;
in the figure, 1, a counter-force supporting seat; 2. an anchor rod; 3. the side wall of the foundation pit; 4. a piercing jack; 5. a cylinder; 6. a clamping pin; 7. a displacement sensor; 8. pulling a rope; 9. a pull rope positioning structure; 10. a first clamping member; 11. a strut; 12. a second clamping member; 13. a positioning ring; 14. a first cylinder; 15. a first clamping screw; 16. a holder; 17. a second cylinder; 18. a second clamping screw.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 1 to 3, the present embodiment is a displacement monitoring and mounting device for an anchor rod pull-out test, which includes a reaction support seat 1, wherein the reaction support seat 1 is sleeved on an exposed portion of an anchor rod 2, and the reaction support seat 1 is in close contact with a side wall 3 of a foundation pit;
the counter-force supporting seat 1 is supported with a center-penetrating jack 4, and the piston extension end of the center-penetrating jack 4 faces outwards;
a cylinder 5 is supported by a piston of the piercing jack 4, and a clamping pin 6 is wedged between the cylinder 5 and the anchor rod 2;
a pull rope type displacement sensor 7 is arranged on the side wall of the counter-force supporting seat 1, and the displacement sensor 7 is connected with a pull rope 8;
the anchor rod 2 is provided with a pull rope positioning structure 9, the pull rope positioning structure 9 comprises a first clamping piece 10, the first clamping piece 10 is provided with a supporting rod 11 which extends out of the anchor rod 2 along the radial direction, the supporting rod 11 is provided with a second clamping piece 12, and the second clamping piece 12 is connected with the other end of the pull rope 8;
the position of displacement sensor 7 on the lateral wall of counter-force supporting seat 1 is close to foundation ditch lateral wall 3, and 1 lateral wall of counter-force supporting seat still is provided with holding ring 13, and stay cord 8 passes holding ring 13, and when stay cord 8 was perpendicular with foundation ditch lateral wall 3, stay cord 8 was concentric with holding ring 13.
Further, the first clamping member 10 comprises a first cylinder 14, and the first cylinder 14 is sleeved on the anchor rod 2;
the first cylinder 14 is provided with two first clamping screws 15, the two first clamping screws 15 and the support rod 11 are positioned on the same plane, and the axial lead of the first cylinder 14 is positioned on the plane;
the two first clamping screws 15 and the support rod 11 are respectively positioned at two sides of the axial lead of the first cylinder 14.
Furthermore, a clamping seat 16 is arranged at the end part of the first clamping screw 15, the clamping seat 16 is in contact with the anchor rod 2, the diameter of the clamping seat 16 is larger than that of the first clamping screw 15, and the contact surface of the clamping seat 16 and the anchor rod 2 is a plane.
Further, the second clamping member 12 comprises a second cylinder 17, and the second cylinder 17 is sleeved on the supporting rod 11;
the second cylinder 17 is provided with a second clamping screw 18, the second clamping screw 18 and the pull rope 8 are positioned on the same plane, and the axial lead of the second cylinder 17 is positioned on the plane;
the second clamping screw 18 and the pulling rope 8 are respectively positioned at two sides of the axial lead of the second cylinder 17.
Further, the penetrating jack 4 and the cylinder 5 are concentric with the anchor rod 2.
Furthermore, the center-penetrating jack 4 is communicated with a manual hydraulic pump.
Furthermore, the manual hydraulic pump is in signal connection with a terminal device, and the displacement sensor is in signal connection with the terminal device.
Further, the terminal device comprises a mobile phone and a computer.
The terminal equipment is provided with software for processing the pressure signal and the displacement signal. In use, as the hand operated hydraulic pump increases pressure, the feed-through jack 4 will pull the end of the bolt 2. The clamping pin 6 will penetrate further into the cylinder 5 and grip the anchor rod 2 tighter. However, the displacement of the pull rope positioning structure 9 is completely consistent with the length of the end part of the anchor rod 2 which is pulled out, so that the distance of the pull rope 8 dragged by the pull rope positioning structure 9 is the displacement of the end part of the anchor rod 2.
The technical features of the present invention that have not been described can be realized through or by adopting the prior art, and are not described herein again, and certainly, the above description is not right the utility model discloses a restriction, the utility model discloses also not only be limited to the above-mentioned example, ordinary skilled person in this technical field is in the utility model discloses a change, modification, interpolation or replacement made in the essential scope also should belong to the protection scope of the utility model.
Claims (8)
1. A displacement monitoring and mounting device for an anchor rod drawing test is characterized by comprising a counter-force supporting seat, wherein the counter-force supporting seat is sleeved on an exposed part of an anchor rod and is in close contact with the side wall of a foundation pit;
the counter-force supporting seat supports a center-penetrating jack, and the extending end of a piston of the center-penetrating jack faces outwards;
a cylinder is supported by the piston of the center-penetrating jack, and a clamping pin is wedged between the cylinder and the anchor rod;
a pull rope type displacement sensor is arranged on the side wall of the counter-force supporting seat, and the displacement sensor is connected with a pull rope;
the anchor rod is provided with a pull rope positioning structure, the pull rope positioning structure comprises a first clamping piece, a supporting rod is arranged on the first clamping piece and extends out of the anchor rod along the radial direction of the anchor rod, a second clamping piece is arranged on the supporting rod, and the second clamping piece is connected with the other end of the pull rope;
the displacement sensor in position on the counter-force supporting seat lateral wall is close to the foundation ditch lateral wall, the counter-force supporting seat lateral wall still is provided with the holding ring, the stay cord passes the holding ring, and works as the stay cord with when the foundation ditch lateral wall is perpendicular, the stay cord with the holding ring is concentric.
2. The displacement monitoring and mounting device for the anchor rod drawing test is characterized in that the first clamping piece comprises a first cylinder, and the first cylinder is sleeved on the anchor rod;
the first cylinder is provided with two first clamping screws, the two first clamping screws and the support rod are positioned on the same plane, and the axial lead of the first cylinder is positioned on the plane;
the two first clamping screws and the support rod are respectively positioned on two sides of the axial lead of the first cylinder.
3. The displacement monitoring and mounting device for the anchor rod drawing test according to claim 2, wherein a clamping seat is arranged at the end of the first clamping screw rod, the clamping seat is in contact with the anchor rod, the diameter of the clamping seat is larger than that of the first clamping screw rod, and the contact surface of the clamping seat and the anchor rod is a plane.
4. The displacement monitoring and mounting device for the anchor rod drawing test as claimed in claim 1, wherein the second clamping member comprises a second cylinder, and the second cylinder is sleeved on the supporting rod;
the second cylinder is provided with a second clamping screw, the second clamping screw and the pull rope are positioned on the same plane, and the axial lead of the second cylinder is positioned on the plane;
the second clamping screw and the pull rope are respectively positioned on two sides of the axial lead of the second cylinder.
5. The displacement monitoring and mounting device for the anchor rod drawing test is characterized in that the penetrating jack and the cylinder are concentric with the anchor rod.
6. The displacement monitoring and mounting device for the anchor rod drawing test is characterized in that the penetrating jack is communicated with a manual hydraulic pump.
7. The displacement monitoring and mounting device for the anchor rod drawing test is characterized in that the manual hydraulic pump is in signal connection with a terminal device, and the displacement sensor is in signal connection with the terminal device.
8. The displacement monitoring and mounting device for the anchor rod drawing test according to claim 7, wherein the terminal equipment comprises a mobile phone and a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704277.9U CN217586629U (en) | 2022-07-05 | 2022-07-05 | Displacement monitoring and mounting device for anchor rod drawing test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221704277.9U CN217586629U (en) | 2022-07-05 | 2022-07-05 | Displacement monitoring and mounting device for anchor rod drawing test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217586629U true CN217586629U (en) | 2022-10-14 |
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ID=83533673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221704277.9U Active CN217586629U (en) | 2022-07-05 | 2022-07-05 | Displacement monitoring and mounting device for anchor rod drawing test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217586629U (en) |
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2022
- 2022-07-05 CN CN202221704277.9U patent/CN217586629U/en active Active
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