Search

CN-122013763-A - Foundation pit anchor rope orifice device

CN122013763ACN 122013763 ACN122013763 ACN 122013763ACN-122013763-A

Abstract

The invention discloses a foundation pit anchor cable orifice device, which relates to the field of foundation pit support and comprises a chassis and a top disc, wherein four first connecting blocks are arranged between the chassis and the top disc at equal intervals and close to an outer ring, four second connecting blocks are arranged between the chassis and the top disc at equal intervals and close to an inner ring, placing grooves are formed in the chassis and the top disc in a penetrating mode, a filling sealing structure is arranged between the chassis and the top disc, the filling sealing structure comprises a hollow bag, a telescopic bag is arranged in the hollow bag at equal intervals and used for realizing sealing filling of an anchor cable hole and a circumferential gap of the device after water injection expansion, four inner bags are arranged in the hollow bag at equal intervals and close to the inner ring, and multiple sealing of gaps between the chassis and the top disc, gaps between the device and the inner wall of the anchor cable hole and gaps between the placing grooves is realized by utilizing the cooperative expansion effect of the hollow bag, the inner bags and the telescopic bag after water injection, so that the reliability and the adaptability of orifice sealing are remarkably improved.

Inventors

  • XU HONGXIANG
  • JU PENG
  • ZHANG JIAN
  • LIN GUOJIU
  • HAN HAIXIANG
  • HUANG BOCHENG
  • WANG TAO

Assignees

  • 中铁建工集团有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (10)

  1. 1. A foundation pit anchor cable orifice device comprises a base plate (1) and a top plate (2) and is characterized in that four first connecting blocks (3) are arranged between the base plate (1) and the top plate (2) at equal intervals and close to an outer ring, four second connecting blocks (4) are arranged between the base plate (1) and the top plate (2) at equal intervals and close to an inner ring, placing grooves are formed in the base plate (1) and the top plate (2) in a penetrating mode, a filling sealing structure (8) is arranged between the base plate (1) and the top plate (2), the filling sealing structure (8) comprises hollow bags (9), telescopic bags (11) are arranged at equal intervals in the hollow bags (9) and used for sealing and filling of annular gaps between anchor cable holes and the device after water injection expansion, and four inner bags (10) are arranged at equal intervals and close to the inner ring and used for guaranteeing radial tightness between the placing grooves and the anchor cables after water injection expansion.
  2. 2. The foundation pit anchor rope orifice device according to claim 1, wherein the outer wall and the inner wall of the hollow bag (9) are fixedly connected with the first connecting block (3) and the second connecting block (4) respectively, and the hollow bag (9), the inner bag (10) and the telescopic bag (11) are mutually communicated.
  3. 3. The foundation pit anchor rope orifice device according to claim 1, wherein an input pipe (12) is fixedly connected to the inside of the hollow bag (9) penetrating through the top of the top disc (2), and a sealing cover (13) is connected to the top of the input pipe (12) in a threaded manner.
  4. 4. The foundation pit anchor rope orifice device according to claim 1, wherein the top of the top disc (2) is provided with four bolts I (5) which are connected with the bottom disc (1) and the top disc (2) by equidistant threads on the outer ring and the inner ring, and the connecting block I (3) and the connecting block II (4) are respectively connected with the bottom disc (1) and the top disc (2) by the bolts I (5) on the outer ring and the bolts I (5) on the inner ring.
  5. 5. The foundation pit anchor rope orifice device according to claim 4, wherein the inner ring of the hollow bag (9) is provided with a reinforcing structure (14), the reinforcing structure (14) comprises four butt joint blocks (21), four sliding grooves (18) are formed in the equal distance between the approaching surfaces of the chassis (1) and the top disc (2), sliding blocks (19) are slidably connected in the upper sliding groove (18) and the lower sliding groove (18), and a link block (20) is fixedly connected between the upper sliding block (19) and the lower sliding block (19) of the same vertical line.
  6. 6. The foundation pit anchor rope orifice device according to claim 5, wherein two linking blocks (20) of the same vertical line are fixedly connected with the top and the bottom of the linking blocks (20) respectively, and the outer wall of the butt joint block (21) is fixedly connected with the inner wall of the hollow bag (9).
  7. 7. The foundation pit anchor rope orifice device according to claim 5, wherein four anti-slip pads (17) are fixedly connected to the outer surface of the hollow bag (9) at equal intervals, and are used for avoiding rigid contact between the hollow bag (9) and the wall of an anchor rope orifice and enhancing interface friction characteristics, and the anti-slip pads (17) and the butt joint blocks (21) are located at the same diameter.
  8. 8. The foundation pit anchor rope orifice device according to claim 5, wherein the inner walls of the four butt joint blocks (21) are fixedly connected with compression blocks (15), compression grooves (22) are formed in the tops of the four compression blocks (15) jointly, the length of the sliding groove (18) is equal to the longitudinal length of the compression blocks (15), the compression grooves (22) are arranged in a conical shape, and the anchor rope vertical displacement is converted into horizontal movement of the compression blocks (15) by means of structural guidance of the conical compression grooves (22).
  9. 9. The foundation pit anchor rope orifice device according to claim 5, wherein an annular groove (16) is formed in the top disc (2), an annular spring (23) is arranged in the annular groove (16), four sliding blocks (19) close to the top are all in contact with the annular spring (23), and the elastic resetting performance of the annular spring (23) is utilized to drive the corresponding sliding blocks (19) to return to an initial station.
  10. 10. The foundation pit anchor rope orifice device according to claim 1, wherein four lugs (6) are fixedly connected to the outer surface of the top disc (2) at equal intervals, and bolts II (7) are connected to the top and the bottom of each lug (6) in a threaded manner.

Description

Foundation pit anchor rope orifice device Technical Field The invention relates to the field of foundation pit support, in particular to a foundation pit anchor cable orifice device. Background The foundation pit anchor rope orifice device is also commonly called an anchor rope orifice sealing device or an orifice bearing body, is a key component in an anchor rope supporting system, has the core function as shown by an alias thereof, effectively prevents slurry from leaking from an orifice, and ensures the fullness and compactness of slurry of an anchoring section; The Chinese patent with the publication number of CN214738027U discloses a foundation pit anchor rope orifice device, which comprises a sealing body arranged in an anchor rope hole, wherein two ends of the sealing body are provided with fixing plates, the sealing body is provided with a first mounting hole, the fixing plate is provided with a second mounting hole, the fixing plate is positioned in the second mounting hole and is penetrated by a bolt, one end of the bolt, which penetrates through the first mounting hole and the second mounting hole, is in threaded connection with a mounting nut, one side of the fixing plate, which is far away from the sealing body, is provided with at least two pin grooves, one side of the fixing plate, which is far away from the sealing body, is provided with a sealing cover, and two ends of the sealing cover are fixedly provided with pin blocks for being spliced with the pin grooves; above-mentioned patent, although the sealed cowling can effectively reduce water and bolt direct contact, and then reduces the rusty possibility after the bolt wets, but through simple sealed packing, be difficult to effectively adapt to the irregular clearance of pore wall and anchor rope, easily lead to infiltration to leak thick liquid, simultaneously, its installation fixed mode is comparatively loaded down with trivial details, lacks the steady pressure-holding ability under the protection and the long-term vibration placed in the middle of anchor rope, commonality and durability are all relatively poor. Disclosure of Invention The invention mainly aims to provide a foundation pit anchor rope orifice device which can effectively solve the problems that the conventional foundation pit anchor rope orifice device usually depends on simple gaskets or is manually stuffed, is difficult to effectively adapt to irregular gaps between hole walls and anchor ropes and is easy to cause water seepage and slurry leakage. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The utility model provides a foundation ditch anchor rope drill way device, includes chassis and footwall, chassis and footwall between and lean on the outer lane equidistance to be provided with four connecting blocks one, chassis and footwall between and lean on the inner circle equidistance to be provided with four connecting blocks two, the standing groove has all been run through to the inside of chassis and footwall, be provided with between chassis and the footwall and fill seal structure, fill seal structure includes hollow bag, hollow bag's inside equidistance is provided with the flexible bag for realize the sealed packing of anchor rope hole and device circumferential gap after the water injection inflation, hollow bag's inside lean on the inner circle equidistance to be provided with four interior bags for ensure the radial seal between standing groove and the anchor rope after the water injection inflation. As a further scheme of the invention, the outer wall and the inner wall of the hollow bag are respectively and fixedly connected with the first connecting block and the second connecting block, and the hollow bag, the inner bag and the telescopic bag are mutually communicated. As a further scheme of the invention, an input pipe is fixedly connected to the inside of the hollow bag penetrating through the top of the top disc, and a sealing cover is connected to the top of the input pipe in a threaded manner. As a further scheme of the invention, four bolts I are connected with the top of the top disc by equidistant threads on the outer ring and the inner ring, and the connecting block I and the connecting block II are respectively connected with the bottom disc and the top disc by the bolts I on the outer ring and the bolts I on the inner ring. As a further scheme of the invention, the inner ring of the hollow bag is provided with a reinforcing structure, the reinforcing structure comprises four butt joint blocks, four sliding grooves are formed in the equal distance between the adjacent surfaces of the bottom plate and the top plate, sliding blocks are connected in a sliding manner in the position close to the top sliding groove and the position close to the bottom sliding groove, and a linking block is fixedly connected between the upper sliding block and the lower sliding block of the same vertical line. As a