CN211256971U - Anchor rod compensation tensioning device - Google Patents
Anchor rod compensation tensioning device Download PDFInfo
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- CN211256971U CN211256971U CN201922152172.1U CN201922152172U CN211256971U CN 211256971 U CN211256971 U CN 211256971U CN 201922152172 U CN201922152172 U CN 201922152172U CN 211256971 U CN211256971 U CN 211256971U
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Abstract
The utility model provides an anchor rod compensation tensioning device, which relates to the technical field of rock and soil anchoring and is used for compensating tensioning construction for the existing anchor on a waist beam, and comprises a first anchor, a second anchor, a suspender and a bearing frame, wherein the bearing frame comprises a supporting leg and a bearing part, a through hole is arranged on the bearing part, the suspender is sleeved in the through hole, one side of the suspender, which is far away from the existing anchor, is provided with the first anchor, and a driving mechanism is arranged between the first anchor and the bearing part; the driving mechanism is used for driving the first anchorage device to drive the suspender to move towards the direction far away from the existing anchorage device; one side of the suspender, which is close to the existing anchorage device, is connected with a second anchorage device, and the second anchorage device is provided with an annular hole which is sleeved outside the existing anchorage device and is abutted against the outer wall of the existing anchorage device. The utility model provides a stretch-draw device is mended to stock can be directly pull up existing ground tackle, is applicable to the stock and exposes the body of rod and destroys or the not enough condition of length, and does not limit the body of rod and exposes length, and application range is wide, except the equal reuse of all the other parts of second locking plate.
Description
Technical Field
The utility model belongs to the technical field of the ground anchor technique and specifically relates to a stretch-draw device is mended to stock.
Background
Bolting is a commonly used form in geotechnical engineering at present. During anchor rod design construction, an anchor rod free section is usually arranged, and prestress is applied to increase the rigidity of a supporting structure and limit deformation of a rock-soil body. Prestressing is often applied by bolt tensioning. When the anchor rod is stretched, the exposed rod body firstly passes through the finished product lockset, then passes through the center-penetrating jack, and the end part of the rod body is locked by the auxiliary anchorage device, and the jack is used for jacking the auxiliary anchorage device to stretch the rod body. After tensioning is finished, the finished product lockset at the bottom of the jack is used for locking the exposed rod body, the jack is removed, and the anchor rod tensioning work is finished.
Along with the increase of the service time of the supporting structure, the phenomenon of prestress loss often appears in the body of rod of stock because the ground body warp or the body of rod creeps. In order to safely use the supporting structure, the anchor rods need to be tensioned.
The exposed rod body needs to be long enough (generally not less than 100cm) in the conventional tensioning and locking process, so that after the anchor rod is tensioned, the anchor rod which is not sheared off and provided with the reserved rod body outside the anchor can be tensioned and locked again by a conventional method. In order to increase the construction space, the reserved rod body outside the anchor is often sheared, and in such a case, the conventional tensioning method is not applicable. In addition, when the steel strand is used as the anchor rod body, the reserved steel strand may be damaged due to construction problems. The end part of the tension rod can not smoothly pass through the anchorage device or the jack due to dispersion or bending, and the conventional method can not be used for tension compensation construction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tensioning equipment is mended to stock to the body of rod of solving the existing ground tackle outside reservation is cut or is destroyed because of the construction problem messenger reserves steel strand wires, and when its tip can't pass ground tackle or jack smoothly, can't use conventional method to mend the technical problem of tensioning construction.
The utility model provides an anchor rod mends tensioning equipment for mend the stretch-draw construction to the existing ground tackle on the waist rail, anchor rod mends tensioning equipment includes first ground tackle, second ground tackle, jib and bears the frame, it includes supporting leg and bearing part to bear the frame, be provided with the through-hole on the bearing part, the jib cover is established in the through-hole;
a first anchorage device is arranged on one side of the hanger rod, which is far away from the existing anchorage device, and a driving mechanism is arranged between the first anchorage device and the bearing part; the driving mechanism is used for driving the first anchor to drive the suspender to move towards the direction far away from the existing anchor;
one side of the hanger rod close to the existing anchorage device is connected with a second anchorage device, and the second anchorage device is provided with an annular hole which is sleeved on the outer side of the existing anchorage device and is abutted against the outer wall of the existing anchorage device.
Furthermore, an axial locking mechanism is arranged between the second anchor and the existing anchor, and when the driving mechanism drives the first anchor to drive the second anchor to move towards the direction far away from the existing anchor through the hanging rod, the driving mechanism is used for locking the movement between the second anchor and the existing anchor along the length direction of the hanging rod.
Further, the axial locking mechanism comprises a first locking plate and a second locking plate, and the second locking plate is connected with the outer side wall of the existing anchorage device; the outer side wall of the second locking plate is connected with the inner side wall of the first locking plate; the outer side wall of the first locking plate is connected with the annular hole in the second anchor;
the first locking piece is matched with the first locking piece, and the second anchor is matched with the first locking piece, so that when the second anchor moves towards the direction of the first anchor, the existing anchor can be driven to move towards the direction of the first anchor.
Furthermore, a first taper hole is formed in the inner side wall of the first locking plate, and a first conical structure corresponding to the first taper hole is formed in the outer side wall of the second locking plate; the second locking plate is inserted into the first taper hole;
the annular hole comprises a second taper hole, a second taper structure is arranged on the outer side wall of the first locking piece, and the first locking piece is inserted into the second taper hole;
the diameters of the first taper hole and the second taper hole are gradually increased along the direction of the existing anchor device towards the first anchor device, and the diameter of the lower end of the first taper hole is smaller than that of the upper end of the first conical structure; the diameter of the lower end of the second taper hole is smaller than that of the upper end of the second taper structure.
Further, the annular hole comprises a round hole, the round hole is connected with the upper end face of the second conical hole, a columnar structure corresponding to the round hole is arranged on the outer side wall of the first locking plate, and the columnar structure is connected with the upper end face of the second conical structure;
the height of the round hole is equal to that of the columnar structure.
Further, the height of the second anchorage is less than the height of the existing anchorage.
Further, the first locking piece comprises a plurality of first sub-locking pieces, and the plurality of first sub-locking pieces enclose a ring shape to form the first locking piece;
the second locking plate comprises a plurality of second sub-locking plates, and the second sub-locking plates surround into a ring shape to form the second locking plate.
Further, the first lock piece comprises four first sub-lock pieces; the second locking piece comprises four second sub-locking pieces.
Further, the stock benefit tensioning equipment still includes dynamometer and third ground tackle, the dynamometer with the third ground tackle cover is established on the jib, just the one end of dynamometer with the bearing part butt, the other end with the bottom surface butt of third ground tackle, the top surface of third ground tackle with actuating mechanism's lower terminal surface butt.
Further, the driving mechanism is a hollow jack.
The utility model provides an anchor rod mends tensioning equipment for mend the stretch-draw construction to the existing ground tackle on the waist rail, anchor rod mends tensioning equipment includes first ground tackle, second ground tackle, jib and bears the frame, it includes supporting leg and bearing part to bear the frame, be provided with the through-hole on the bearing part, the jib cover is established in the through-hole; a first anchorage device is arranged on one side of the hanger rod, which is far away from the existing anchorage device, and a driving mechanism is arranged between the first anchorage device and the bearing part; the driving mechanism is used for driving the first anchor to drive the suspender to move towards the direction far away from the existing anchor; one side of the hanger rod close to the existing anchorage device is connected with a second anchorage device, and the second anchorage device is provided with an annular hole which is sleeved on the outer side of the existing anchorage device and is abutted against the outer wall of the existing anchorage device. During the use, with the annular ring of second ground tackle and the outer wall butt of existing ground tackle, the jib is connected with the second ground tackle, will bear the axle sleeve and establish on the jib, then at jib suit actuating mechanism and first ground tackle, first ground tackle concreties with the jib, and actuating mechanism sets up between the loading board of first ground tackle and bearing frame, and actuating mechanism can drive first ground tackle and drive the jib and to keeping away from existing ground tackle direction removes to the second ground tackle that makes to be connected with the jib can drive existing ground tackle and to keeping away from the movement of waist rail direction, when stock stretch-draw to design value add backing plate again between existing ground tackle and the waist rail, thereby realize mending the stretch-draw construction to the stock. The utility model provides a stretch-draw device is mended to stock directly pulls up existing ground tackle, is applicable to the stock and exposes the body of rod and destroys or the not enough condition of length, and does not limit the body of rod and exposes length, and application range is wide.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an anchor rod tension compensating device provided by an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is an exploded view of the anchor rod tension compensating device according to the embodiment of the present invention;
fig. 4 is a schematic view illustrating a connection between a boom and a second anchor of the anchor rod tension compensating device according to an embodiment of the present invention;
fig. 5 is an exploded view of a boom and a second anchor of the anchor rod tension compensating device according to the embodiment of the present invention;
fig. 6 is an installation schematic diagram of the dynamometer of the anchor rod tension supplementing device provided by the embodiment of the invention.
Icon: 10-existing anchorage; 11-existing anchor lock plate; 20-anchor rod; 30-waist rail; 40-existing backing plates; 100-a second anchor; 110-ring pore; 120-screw hole; 210-a first locking tab; 211-a first sub locking tab; 220-a second locking tab; 221-a second sub-locking tab; 300-a carrier; 310-a carrier part; 320-support legs; 400-a boom; 410-a transition plate; 411-mounting holes; 420-screw rod; 500-a drive mechanism; 600-a first anchor; 610-an anchor body; 620-anchor lock plate; 700-dynamometer; 800-third anchorage.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-6, the utility model provides a tensioning device is mended to stock for mend the stretch-draw construction to existing ground tackle 10 on the waist rail 30, the stock mends tensioning device and includes first ground tackle 600, second ground tackle 100, jib 400 and bears frame 300, bears frame 300 and includes supporting leg 320 and bearing part 310, is provided with the through-hole on the bearing part 310, and jib 400 cover is established in the through-hole.
A first anchor 600 is arranged on one side of the boom 400 far away from the existing anchor 10, a driving mechanism 500 is arranged between the first anchor 600 and the bearing part 310, and the driving mechanism 500 is used for driving the first anchor 600 to drive the boom 400 to move towards the direction far away from the existing anchor 10.
One side of the suspender 400 close to the existing anchorage device 10 is connected with a second anchorage device 100, the second anchorage device 100 is provided with an annular hole 110, and the second anchorage device 100 is sleeved outside the existing anchorage device 10 and is abutted against the outer wall of the existing anchorage device 10.
Specifically, the wale 30 is provided with an existing backing plate 40, and the anchor rod 20 sequentially penetrates through the wale 30 and the existing backing plate 40 and then is fixed by the existing anchor 10.
The hanger bar 400 is passed through the through-hole of the carrier 300, the support leg 320 of the carrier 300 is placed on the wale 30, and the hanger bar 400 is passed through the driving mechanism 500 and the first anchor 600 in turn. The first anchor 600 includes an anchor body 610 and an anchor lock tab 620, the anchor body 610 being connected to the boom 400 by the anchor lock tab 620, the anchor lock tab 620 locking the anchor body 610 to the boom 400.
One side of the suspension rod 400 close to the existing anchorage device 10 is provided with a transition plate 410, the transition plate 410 is provided with a mounting hole 411, the second anchorage device 100 is provided with a screw hole 120 corresponding to the mounting hole 411, and the transition plate 410 is connected with the second anchorage device 100 through a screw rod 420, so that the suspension rod 400 can drive the second anchorage device 100 to move.
When the anchor rod 20 is stretched to a stretching value, a design backing plate is added between the existing anchor 10 and the waist rail 30, and then the first anchor 600, the driving mechanism 500, the bearing frame 300, the first anchor 600, the second anchor 400, the screw rod 420 and the hanging rod 400 are sequentially taken down; and (5) taking out the first locking plate 210 and the second anchorage device 100, and finishing construction. Thereby accomplishing the supplementary tension construction of the anchor rod 20.
The utility model provides a stretch-draw device is mended to stock can be directly with existing ground tackle 10 pull-up, is applicable to the stock 20 and exposes the body of rod and destroys or the not enough condition of length, and does not limit the body of rod and expose length, and application range is wide, except that the equal reuse of all the other parts of second locking plate 220, accords with the requirement of energy-concerving and environment-protective, green construction.
Preferably, the driving mechanism 500 may be a hollow jack.
Further, an axial locking mechanism is provided between second anchor 100 and existing anchor 10 for locking movement between second anchor 100 and existing anchor 10 in the length direction of boom 400 when driving mechanism 500 drives first anchor 600 via boom 400 to move second anchor 100 in a direction away from existing anchor 10.
As shown in fig. 1 and 2, the axial locking mechanism includes a first locking plate 210 and a second locking plate 220, and the second locking plate 220 is connected to the outer sidewall of the existing anchor 10; the outer side wall of the second locking piece 220 is connected with the inner side wall of the first locking piece 210; the outer side wall of first locking tab 210 is connected to annular ring 110 of second anchor 100.
The first locking piece 210 is engaged with the first locking piece 210, and the second anchor 100 is engaged with the first locking piece 210, so that the existing anchor 10 can be driven to move towards the first anchor 600 when the second anchor 100 moves towards the first anchor 600.
Specifically, the second locking plate 220 is welded on the outer side wall of the existing anchor 10, the second anchor 100 is sleeved on the existing anchor 10, the first locking plate 210 is arranged between the second locking plate 220 and the annular hole 110 of the second anchor 100, and is used for locking the second anchor 100 and the existing anchor 10 when the boom 400 drives the second anchor 100 to move upwards, so that the existing anchor 10 can be driven to move in the direction away from the waist rail 30, because the second anchor 100 is connected with the existing anchor 10 through the first locking plate 210 and the second locking plate 220, the existing anchor 10 can also move along with the movement of the boom 400, so that a gap is generated between the existing anchor 10 and the waist rail 30, when the anchor rod 20 is stretched to a stretching value, the first cushion plate is inserted into the gap between the existing anchor 10 and the existing cushion plate 40, and the tensioning construction is completed.
Further, a first taper hole is formed in the inner side wall of the first locking plate 210, and a first tapered structure corresponding to the first taper hole is formed in the outer side wall of the second locking plate 220; the second locking plate 220 is inserted into the first tapered hole.
The annular hole 110 includes a second taper hole, a second taper structure is disposed on an outer sidewall of the first locking piece 210, and the first locking piece 210 is inserted into the second taper hole.
The diameters of the first taper hole and the second taper hole are gradually increased along the direction of the existing anchorage device 10 towards the first anchorage device 600, and the diameter of the lower end of the first taper hole is smaller than that of the upper end of the first taper structure; the diameter of the lower end of the second taper hole is smaller than that of the upper end of the second taper structure.
Specifically, the second locking plate 220 is welded on the outer side wall of the existing anchor 10, the first locking plate 210 is matched with the first tapered structure on the outer side wall of the second locking plate 220 through the first tapered hole on the inner side wall of the first locking plate 210, and the second tapered hole of the second anchor 100 is matched with the second tapered structure on the outer side wall of the first locking plate 210, so that when the second anchor 100 moves upwards under the driving of the suspender 400, the existing anchor 10 can be driven to move.
Optionally, the annular hole 110 includes a circular hole, the circular hole is connected to the upper end surface of the second conical hole, a columnar structure corresponding to the circular hole is disposed on the outer side wall of the first locking plate 210, and the columnar structure is connected to the upper end surface of the second conical structure;
the height of the round hole is equal to that of the columnar structure.
Preferably, the height of second anchor 100 is less than the height of existing anchor 10.
Specifically, the height of the second anchor 100 is smaller than that of the existing anchor 10, when the second anchor 100 is actually used, a gap is formed between the second anchor 100 and the existing cushion plate 40, after the completion of the tensioning construction, the second anchor 100 can be knocked to fall onto the existing cushion plate 40 again, the first locking piece 210 and the second anchor 100 are taken out in sequence, and the second anchor 100 is more convenient to dismantle.
Preferably, the first locking piece 210 includes a plurality of first sub-locking pieces 211, and the plurality of first sub-locking pieces 211 form a ring shape to form the first locking piece 210.
The second locking piece 220 includes a plurality of second sub-locking pieces 221, and the plurality of second sub-locking pieces 221 surround in a ring shape to form the second locking piece 220.
Specifically, the first locking piece 210 includes a plurality of first sub-locking pieces 211, and after the first sub-locking pieces are encircled into a ring shape, a first taper hole is formed on the inner side wall thereof, and a second taper structure is formed on the outer side wall thereof; the second locking piece 220 includes a plurality of second sub-locking pieces 221, and after being surrounded in a ring shape, the outer side wall thereof forms a first tapered structure.
A plurality of first sub-locking pieces 211 are evenly welded on the outer side wall of the existing anchorage device 10, a plurality of second sub-locking pieces 221 are evenly arranged between the first sub-locking pieces 211 and the annular hole 110, when the second anchorage device 100 moves upwards, because the second anchorage device 100 is abutted to the outer side wall of the first sub-locking pieces 211 through the second annular hole, the inner side wall of the first sub-locking pieces 211 is abutted to the outer side wall of the second sub-locking pieces 221, the second anchorage device 100 can generate a radial force towards the existing anchorage device 10, thereby the second anchorage device 100 is increased to be arranged between the first sub-locking pieces 211, the friction force between the first sub-locking pieces 211 and the second sub-locking pieces 221 is increased, and when the tensioning is supplemented, the connection between the second anchorage device 100 and the existing anchorage device 10 is more compact and stable.
Meanwhile, the plurality of first sub-locking pieces 211 and the plurality of second sub-locking pieces 221 are more convenient for the disassembly and assembly of the second anchor 100.
As shown in fig. 5, in the present embodiment, the first locking piece 210 includes four first sub-locking pieces 211, and the second locking piece 220 includes four second sub-locking pieces 221.
Optionally, the anchor rod supplementing and tensioning device further comprises a force gauge 700 and a third anchor device 800, the force gauge 700 and the third anchor device 800 are sleeved on the suspension rod 400, one end of the force gauge 700 abuts against the bearing part 310, the other end of the force gauge 700 abuts against the bottom surface of the third anchor device 800, and the top surface of the third anchor device 800 abuts against the lower end surface of the driving mechanism 500.
As shown in fig. 6, a force gauge 700 and a third anchor 800 are added between the driving mechanism 500 and the bearing frame 300 of the anchor rod compensation tensioning device, and the real-time monitoring of the internal force of the anchor rod 20 after the compensation tensioning can be realized, when the anchor rod compensation tensioning device is used, after the compensation tensioning construction is completed, the third anchor 800 and the suspension rod 400 are locked by using a third locking plate, only the driving mechanism 500 and the first anchor 600 are removed, other components are reserved, and the internal force of the anchor rod 20 can be monitored in real time through the force gauge 700.
The utility model provides a stretch-draw device is mended to stock, its working method is: (1) trimming the exposed end of the anchor rod 20 to be within 5 cm; (2) uniformly welding the second locking plate 220 on the outer side wall of the existing anchorage 10; (3) sleeving the second anchor 100 on the existing anchor 10 so that the existing anchor 10 is positioned at the center of the second anchor 100 and the bottom of the second anchor 100 is in contact with the existing backing plate 40; (4) uniformly placing the first locking plate 210 into a gap between the second anchor 100 and the second locking plate 220; (5) a screw rod 420 is inserted through the mounting hole 411 of the transition plate 410, so that the screw rod 420 is connected with the screw hole 120 of the second anchor 100; (6) the hanger bar 400 is passed through the through hole of the carrier 300, and the supporting feet of the carrier 300 are placed on the wale 30; the suspension rod 400 sequentially passes through the hollow jack and the first anchor 600, the first anchor 600 and the suspension rod 400 are locked through the first locking plate 210, and the suspension rod 400 is lifted outwards through pressurization of the hollow jack; (7) the pressure generated by the hollow jack is converted into tension through the first anchor 600, and then is transmitted to the rod body of the anchor rod 20 through the suspension rod 400, the transition plate 410, the screw rod 420, the second anchor 100, the first locking piece 210, the second locking piece 220, the existing anchor 10 and the existing anchor locking piece 11 in sequence; (8) with the increase of the pressure of the hollow jack, the existing anchorage device 10 and the existing backing plate 40 are gradually separated, and when the anchor rod 20 is tensioned to a designed value, a first backing plate is inserted into a gap between the existing anchorage device and the existing backing plate 40; (9) unloading the jack, and sequentially taking down the first anchorage device 600, the hollow jack, the bearing frame 300, the screw rod 420 and the suspender 400; (10) second anchor 100 is knocked to re-drop onto existing bolster 40, at which point first locking tab 210 and second anchor 100 may be removed, completing the construction.
To sum up, the utility model provides an anchor rod supplementing tensioning device for supplementing tensioning construction to the existing anchorage device 10 on the waist rail 30, the anchor rod supplementing tensioning device comprises a first anchorage device 600, a second anchorage device 100, a suspender 400 and a bearing frame 300, the bearing frame 300 comprises a supporting leg 320 and a bearing part 310, the bearing part 310 is provided with a through hole, and the suspender 400 is sleeved in the through hole; a first anchorage device 600 is arranged on one side of the suspender 400 far away from the existing anchorage device 10, and a driving mechanism 500 is arranged between the first anchorage device 600 and the bearing part 310; the driving mechanism 500 is used for driving the first anchor 600 to drive the boom 400 to move away from the existing anchor 10; one side of the hanger rod 400 close to the existing anchorage device 10 is connected to the second anchorage device 100, and the second anchorage device 100 is provided with an annular hole 110 which is sleeved outside the existing anchorage device 10 and is abutted against the outer wall of the existing anchorage device 10. When the anchor rod 20 is stretched to a designed value, a backing plate is added between the existing anchor 10 and the wale 30 again, so that the anchor rod 20 is subjected to tensioning construction. The utility model provides a stretch-draw device is mended to stock can be directly with existing ground tackle 10 pull-up, is applicable to the stock 20 and exposes the body of rod and destroys or the not enough condition of length, and does not limit the body of rod and exposes length, and application range is wide.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An anchor rod compensation tensioning device is used for performing compensation tensioning construction on an existing anchor device on a waist beam and is characterized by comprising a first anchor device, a second anchor device, a hanging rod and a bearing frame, wherein the bearing frame comprises a supporting leg and a bearing part, a through hole is formed in the bearing part, and the hanging rod is sleeved in the through hole;
a first anchorage device is arranged on one side of the hanger rod, which is far away from the existing anchorage device, and a driving mechanism is arranged between the first anchorage device and the bearing part; the driving mechanism is used for driving the first anchor to drive the suspender to move towards the direction far away from the existing anchor;
one side of the hanger rod close to the existing anchorage device is connected with a second anchorage device, and the second anchorage device is provided with an annular hole which is sleeved on the outer side of the existing anchorage device and is abutted against the outer wall of the existing anchorage device.
2. An anchor rod supplemental tension device according to claim 1, wherein an axial locking mechanism is provided between the second anchor and the existing anchor for locking movement between the second anchor and the existing anchor in the length direction of the boom when the drive mechanism drives the first anchor to move the second anchor via the boom in a direction away from the existing anchor.
3. An anchor rod tensioning device according to claim 2, wherein the axial locking mechanism comprises a first locking plate and a second locking plate, the second locking plate being connected to an outer side wall of the existing anchor; the outer side wall of the second locking plate is connected with the inner side wall of the first locking plate; the outer side wall of the first locking plate is connected with the annular hole in the second anchor;
the first locking piece is matched with the first locking piece, and the second anchor is matched with the first locking piece, so that when the second anchor moves towards the direction of the first anchor, the existing anchor can be driven to move towards the direction of the first anchor.
4. An anchor rod supplementing and tensioning device according to claim 3, wherein a first taper hole is formed in the inner side wall of the first locking plate, and a first tapered structure corresponding to the first taper hole is formed in the outer side wall of the second locking plate; the second locking plate is inserted into the first taper hole;
the annular hole comprises a second taper hole, a second taper structure is arranged on the outer side wall of the first locking piece, and the first locking piece is inserted into the second taper hole;
the diameters of the first taper hole and the second taper hole are gradually increased along the direction of the existing anchor device towards the first anchor device, and the diameter of the lower end of the first taper hole is smaller than that of the upper end of the first conical structure; the diameter of the lower end of the second taper hole is smaller than that of the upper end of the second taper structure.
5. An anchor rod tensioning device according to claim 4, wherein the annular hole comprises a circular hole, the circular hole is connected with the upper end surface of the second conical hole, a columnar structure corresponding to the circular hole is arranged on the outer side wall of the first locking plate, and the columnar structure is connected with the upper end surface of the second conical structure;
the height of the round hole is equal to that of the columnar structure.
6. An anchor rod supplemental tension device according to claim 5, wherein the second anchor has a height less than the height of the existing anchor.
7. An anchor rod supplemental tension device according to claim 3, wherein the first locking piece comprises a plurality of first sub locking pieces, the plurality of first sub locking pieces enclosing an annular shape to form the first locking piece;
the second locking plate comprises a plurality of second sub-locking plates, and the second sub-locking plates surround into a ring shape to form the second locking plate.
8. An anchor rod supplemental tension device according to claim 7, wherein the first locking tab comprises four of the first sub locking tabs; the second locking piece comprises four second sub-locking pieces.
9. An anchor rod supplement tensioning device according to claim 1, further comprising a force gauge and a third anchor, wherein the force gauge and the third anchor are sleeved on the suspension rod, one end of the force gauge is abutted to the bearing part, the other end of the force gauge is abutted to the bottom surface of the third anchor, and the top surface of the third anchor is abutted to the lower end surface of the driving mechanism.
10. An anchor rod supplemental tension device as claimed in any of claims 1 to 9, wherein the drive mechanism is a hollow jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922152172.1U CN211256971U (en) | 2019-12-03 | 2019-12-03 | Anchor rod compensation tensioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922152172.1U CN211256971U (en) | 2019-12-03 | 2019-12-03 | Anchor rod compensation tensioning device |
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| CN211256971U true CN211256971U (en) | 2020-08-14 |
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| CN201922152172.1U Active CN211256971U (en) | 2019-12-03 | 2019-12-03 | Anchor rod compensation tensioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761283A (en) * | 2019-12-03 | 2020-02-07 | 山东建勘集团有限公司 | Anchor rod compensation tensioning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761283A (en) * | 2019-12-03 | 2020-02-07 | 山东建勘集团有限公司 | Anchor rod compensation tensioning device |
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