Unbonded pressure dispersion type anchor cable cloth bag type grout stop ring

Abstract

The utility model relates to the technical field of anchor cable grout stopping, and discloses an unbonded pressure dispersion type anchor cable cloth bag type grout stopping ring which comprises a cloth bag type grout stopping ring body arranged on an anchor cable body in a sleeving mode and used for stopping grout. Two groups of connecting ropes are arranged on two sides of the cloth bag type grout stop ring main body; a locking mechanism is mounted between the connecting rope and the steel strand of the anchor cable main body; the position, close to the cloth bag type grout stop ring body, of the outer portion of the anchor cable body is sleeved with a protective sleeve, and according to the unbonded pressure dispersing type anchor cable cloth bag type grout stop ring, by increasing the friction force and the fixing force between the cloth bag type grout stop ring body and the anchor cable body, the fixing effect of the cloth bag type grout stop ring body is greatly improved; the cloth bag type grout stop ring effectively prevents the displacement phenomenon of the cloth bag type grout stop ring body in the construction and use process, grout can be accurately injected into the free section or the anchoring section of the anchor cable, the problem of grout loss or uneven injection is avoided, and the fixing effect of the anchor cable is ensured.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable grouting technology, specifically to a non-bonded pressure dispersion type anchor cable bag-type grouting ring. Background Technology

[0002] In geotechnical engineering, prestressed anchor cables are widely used as an effective means of soil and rock reinforcement in fields such as slope protection, tunnel engineering, and foundation treatment. Traditional prestressed anchor cables mostly employ bonded anchoring, but this method suffers from problems such as excessive prestress concentration and potential damage to the mortar and soil in the anchoring section. Therefore, pressure-dispersing anchor cables have gradually become a research hotspot and have been widely applied in practical engineering.

[0003] Among pressure-dispersing anchor cables, unbonded pressure-dispersing anchor cables have significant advantages. By setting multiple bearing plates in the anchoring section of the anchor cable, the total tension is distributed to each bearing plate, thereby reducing the peak bonding stress on the fixed section, improving the stress state near the inner anchoring section, and facilitating the anchoring of unstable bodies in deep strata.

[0004] However, the installation and fixation of the grout stop ring has become a key technical issue in the construction of unbonded pressure-dispersing anchor cables. The main function of the grout stop ring is to prevent grout from entering the free section of the anchor cable during grouting, ensuring that the free section of the anchor cable is not affected by the grout. The existing grout stop ring technology meets the needs of anchor cable construction to a certain extent, but in practical applications, the fixing effect of the grout stop ring is not good, and it is prone to displacement and wear. This may result in the grout not being properly injected into the free section or anchoring section of the anchor cable, thus affecting the fixing effect of the anchor cable. Therefore, we propose an unbonded pressure-dispersing anchor cable bag-type grout stop ring to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a non-adhesive pressure-dispersing anchor cable bag-type grout stop ring, which solves the problem that in practical applications, the grout stop ring has poor fixing effect, is prone to displacement and wear, and may cause the grout to be unable to be properly injected into the free section or anchoring section of the anchor cable, thus affecting the fixing effect of the anchor cable.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a non-adhesive pressure dispersion type anchor cable bag-type grout stop ring, including a bag-type grout stop ring body sleeved on the anchor cable body for blocking grout;

[0007] Two sets of connecting ropes are provided on both sides of the main body of the bag-type grout-stopping ring.

[0008] A locking mechanism is installed between the steel strands of the connecting rope and the anchor cable body;

[0009] The outer part of the anchor cable body is sleeved with a protective sleeve near the position of the cloth bag type grout stopping ring body, and the protective sleeve is located between the cloth bag type grout stopping ring body and the anchor cable body.

[0010] Preferably, the side of the cloth bag type grout stopping ring body near the connecting rope is fixedly provided with a side wing, and one end of the connecting rope is fixedly connected with the corresponding side wing.

[0011] Preferably, the locking mechanism comprises a U-shaped seat arranged on one side of the side wing and a slide rod fixedly arranged in the U-shaped seat in a symmetrical manner, the U-shaped seat is internally provided with a pressing plate, the pressing plate is slid on the surface of the two groups of slide rods through the through hole, one side of the U-shaped seat is threadedly connected with a threaded rod through the threaded hole, and the side of the pressing plate near the threaded rod is fixedly provided with a limiting ring arranged in a symmetrical manner, one end of the connecting rope passes through the two groups of limiting rings, and the connecting rope is located between the pressing plate and the threaded rod.

[0012] Preferably, a plurality of springs are fixedly arranged between the pressing plate and the U-shaped seat.

[0013] Preferably, a rotating barrel is rotatably connected to one end of the threaded rod.

[0014] Preferably, anti-skid pads are fixedly arranged on the side of the pressing plate away from the limiting ring and on the inner side wall of the U-shaped seat away from the spring.

[0015] Preferably, one side of the pressing plate is designed in an arc surface structure.

[0016] Preferably, one side of the pressing plate is designed in an arc surface structure.

[0017] The utility model discloses the beneficial effect of the following:

[0018] The utility model discloses a non -bonding pressure dispersion type anchor cable cloth bag type grout stopping ring, compared with prior art has the following beneficial effect:

[0019] The non -bonding pressure dispersion type anchor cable cloth bag type grout stopping ring can increase the friction force and fixing force between the cloth bag type grout stopping ring body and the anchor cable body, greatly improve the fixing effect of the cloth bag type grout stopping ring body, effectively prevent the displacement of the cloth bag type grout stopping ring body during construction and use, and accurately inject the grout into the free section or anchoring section of the anchor cable, avoid the problem of grout loss or uneven injection, and ensure the fixing effect of the anchor cable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0021] Fig. 2The utility model discloses a cloth bag type stop grouting ring main part and the structure schematic drawing of connecting piece such as side wing.

[0022] Fig. 3 The utility model discloses a locking mechanism structure schematic drawing.

[0023] In the drawing: 101, anchor main body; 102, cloth bag type stop grouting ring main body; 103, side wing; 104, connecting rope; 105, protective sleeve; 2, locking mechanism; 201, U type seat; 202, extrusion plate; 203, sliding rod; 204, spring; 205, limit ring; 206, threaded rod; 207, rotating cylinder; 208, antiskid pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] As Figs. 1-3 Indicated:

[0026] The cloth bag type stop grouting ring of unbonded pressure dispersion type anchor is provided with two groups of connecting ropes 104 on both sides of the cloth bag type stop grouting ring main body 102, and the side of the cloth bag type stop grouting ring main body 102 close to the connecting rope 104 is fixedly installed with the side wing 103.

[0027] The cloth bag type stop grouting ring main body 102 is fixedly installed with the side wing 103 on the side close to the connecting rope 104, and one end of the connecting rope 104 is fixedly connected with the corresponding side wing 103.

[0028] The locking mechanism 2 is installed between the connecting rope 104 and the steel strand of the anchor main body 101.

[0029] The locking mechanism 2 comprises the U type seat 201 arranged at one side of the side wing 103 and the sliding rod 203 fixedly arranged in the U type seat 201 in a symmetrical manner, the U type seat 201 is internally provided with the extrusion plate 202, the extrusion plate 202 is slid on the surface of the two groups of sliding rods 203 through the through hole, one side of the U type seat 201 is screw-connected with the threaded rod 206 through the screw hole, the side of the extrusion plate 202 close to the threaded rod 206 is fixedly provided with the limit ring 205 arranged in a symmetrical manner, one end of the connecting rope 104 passes through the two groups of limit rings 205, and the connecting rope 104 is located between the extrusion plate 202 and the threaded rod 206.

[0030] A plurality of springs 204 are fixedly installed between the extrusion plate 202 and the U type seat 201.

[0031] The outer part of the anchor cable body 101 is sleeved with a protective sleeve 105 near the position of the cloth bag type grouting ring body 102, and the protective sleeve 105 is located between the cloth bag type grouting ring body 102 and the anchor cable body 101.

[0032] In the embodiment, the size and installation position of the cloth bag type grouting ring body 102 are designed, the cloth bag type grouting ring body 102 is sewn by geotextile or canvas, the error of the cloth bag type grouting ring body 102 is not more than ±50 mm of the hole diameter of the anchor cable body 101, the total length of the cloth bag type grouting ring body 102 is 60 cm, and the design of the cloth bag type grouting ring body 102 ensures that the cloth bag type grouting ring body 102 can tightly wrap around the steel strand of the anchor cable body 101 and can expand to seal the grouting area during grouting.

[0033] When the cloth bag type grouting ring body 102 is installed, the protective sleeve 105 is first sleeved on the anchor cable body 101, the protective sleeve 105 is made of rubber material and is located between the cloth bag type grouting ring body 102 and the anchor cable body 101, and the arrangement of the protective sleeve 105 can reduce the wear between the cloth bag type grouting ring body 102 and the anchor cable body 101 and prolong the use effect of the cloth bag type grouting ring body 102.

[0034] Then, the cloth bag type grouting ring body 102 is sleeved on the protective sleeve 105 and located at the specified position of the anchor cable body 101, when the cloth bag type grouting ring body 102 is fixed, the U-shaped seat 201 is clamped on the corresponding steel strand of the anchor cable body 101, the steel strand is located between the U-shaped seat 201 and the extrusion plate 202, the spring 204 is installed on the extrusion plate 202, when the U-shaped seat 201 is clamped on the steel strand of the anchor cable body 101, the extrusion plate 202 is first pulled to extrude the spring 204, so that the extruded spring 204 rebounds to drive the extrusion plate 202 to tightly fit the steel strand of the anchor cable body 101, the U-shaped seat 201 can be temporarily clamped on the steel strand of the anchor cable body 101, and the extrusion plate 202 can slide on the two groups of slide rods 203, the arrangement of the slide rods 203 can limit the extrusion plate 202, so that the extrusion plate 202 moves more stably.

[0035] Then, the connecting rope 104 is pulled to make the connecting rope 104 slide on the two groups of limiting rings 205 and be in a taut state, one end of the connecting rope 104 can be wound and knotted, and the diameter of the knot is greater than the inner diameter of the limiting ring 205, so that the connecting rope 104 can be prevented from being separated from the limiting ring 205.

[0036] When the connecting rope 104 is in a taut state, the threaded rod 206 is then rotated, and the threaded rod 206 and the U-shaped seat 201 are threadedly connected. Through the movement of the threaded rod 206, the connecting rope 104 and the pressing plate 202 are synchronously pressed, so that the pressing locking of the connecting rope 104 can be realized, and then the pressing plate 202 drives the steel strand of the anchor cable main body 101 to be pressed and fixed, so that the locking mechanism 2 is fixed on the steel strand of the anchor cable main body 101, thereby realizing the connection and locking of the connecting rope 104 and the steel strand of the anchor cable main body 101, and further realizing the installation and fixation of the bag type grouting ring main body 102. The connecting ropes 104 on the two sides of the bag type grouting ring main body 102 are designed to be 90° staggered, and the connecting ropes 104 on the two sides of the bag type grouting ring main body 102 are in a taut state, so that the stability of the bag type grouting ring main body 102 is ensured.

[0037] The scheme increases the friction and fixing force between the bag type grouting ring main body 102 and the anchor cable main body 101, greatly improves the fixing effect of the bag type grouting ring main body 102, effectively prevents the displacement of the bag type grouting ring main body 102 during construction and use, and ensures that the grout can be accurately injected into the free section or the anchoring section of the anchor cable, avoids the problems of grout loss or uneven injection, and ensures the fixing effect of the anchor cable.

[0038] The anchor cable main body 101 in a non-bonding pressure dispersion type is passed through a pre-prepared drill hole, and a grouting pipe is connected to a grouting opening of the bag type grouting ring main body 102, so as to ensure firm connection. Grout is injected into the anchoring section of the anchor cable through a grouting pump (not shown in the figure). During the grouting process, the bag type grouting ring expands to block the gap between the steel strand and the hole wall, and prevents the grout from entering the free section.

[0039] Further more;

[0040] In an optional embodiment, a rotating barrel 207 is rotatably connected to one end of the threaded rod 206.

[0041] In the embodiment, the threaded rod 206 is provided with the rotating barrel 207. When the threaded rod 206 rotates, the rotating barrel 207 is in a stationary state due to the contact friction with the connecting rope 104, and the threaded rod 206 rotates on the rotating barrel 207, which reduces the extrusion and wear of the connecting rope 104 and prolongs the service life of the connecting rope 104.

[0042] Further more;

[0043] In an optional embodiment, anti-skid pads 208 are fixedly installed on the side of the pressing plate 202 away from the limiting ring 205 and the side of the inner side wall of the U-shaped seat 201 away from the spring 204, and the side of the pressing plate 202 is designed in an arc surface structure. The arc surface of the pressing plate 202 is in close contact with the anti-skid pads 208.

[0044] In the embodiment: when the extrusion plate 202 and the U-shaped seat 201 cooperate to clamp and fix the steel strand of the anchor cable body 101, the setting of the anti-skid pad 208 can increase the contact friction between the extrusion plate 202 and the steel strand of the anchor cable body 101, and further improve the fixing effect.

[0045] And one side of the extrusion plate 202 is provided in an arc surface structure, for increasing the contact area with the steel strand and improving the fixing effect.

[0046] The working principle and use process of the utility model are as follows: when the non-bonding pressure dispersion type anchor cable cloth bag type gushing ring main body 102 is installed, the protective sleeve 105 is first sleeved on the anchor cable body 101, the protective sleeve 105 is made of rubber material, and is located between the cloth bag type gushing ring main body 102 and the anchor cable body 101, so that the abrasion between the cloth bag type gushing ring main body 102 and the anchor cable body 101 can be reduced.

[0047] Subsequently, the cloth bag type grouting ring body 102 is sleeved on the protective sleeve 105 and located at the specified position of the anchor cable body 101. When the cloth bag type grouting ring body 102 is fixed, the U-shaped seat 201 is clamped on the corresponding steel strand of the anchor cable body 101, and the steel strand is located between the U-shaped seat 201 and the extrusion plate 202, and the spring 204 is installed on the extrusion plate 202. When the U-shaped seat 201 is clamped on the steel strand of the anchor cable body 101, the extrusion plate 202 is first pulled to extrude the spring 204, so that the spring 204 under extrusion rebounds to drive the extrusion plate 202 to tightly fit the steel strand of the anchor cable body 101, and the U-shaped seat 201 can be temporarily clamped on the steel strand of the anchor cable body 101. The extrusion plate 202 can slide on the two groups of slide rods 203. Then the connecting rope 104 is pulled to make the connecting rope 104 slide on the two groups of limiting rings 205, and the connecting rope 104 is in a taut state. When the connecting rope 104 is in a taut state, the threaded rod 206 is then rotated, and the threaded rod 206 and the U-shaped seat 201 are threadedly connected. By moving the threaded rod 206, the connecting rope 104 and the extrusion plate 202 are synchronously extruded, so that the extrusion locking of the connecting rope 104 is realized, and the extrusion plate 202 is further driven to extrude and fix the steel strand of the anchor cable body 101, so that the locking mechanism 2 is fixed on the steel strand of the anchor cable body 101, thereby realizing the connection and locking of the connecting rope 104 and the steel strand of the anchor cable body 101, and realizing the installation and fixation of the cloth bag type grouting ring body 102. The unbonded pressure dispersion type anchor cable body 101 is inserted through the pre-prepared drill hole, and the grouting pipe is connected with the grouting port of the cloth bag type grouting ring body 102, ensuring firm connection. The grout is injected into the anchoring section of the anchor cable by the grouting pump (not shown in the figure), and the cloth bag type grouting ring expands to block the gap between the steel strand and the hole wall during the grouting process, preventing the grout from entering the free section.

[0048] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A non-bonded pressure-dispersing anchor cable bag-type grout-stopping ring, characterized in that: Includes a bag-type grout-stopping ring body (102) fitted onto the anchor cable body (101) to block grout. Two sets of connecting ropes (104) are provided on both sides of the main body (102) of the bag-type grout-stopping ring. A locking mechanism (2) is installed between the steel strands of the connecting rope (104) and the anchor cable body (101). A protective sleeve (105) is fitted on the outside of the anchor cable body (101) near the bag-type grout stop ring body (102), and the protective sleeve (105) is located between the bag-type grout stop ring body (102) and the anchor cable body (101).

2. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 1, characterized in that: A side wing (103) is fixedly installed on the side of the main body (102) of the bag-type grout-stopping ring near the connecting rope (104), and one end of the connecting rope (104) is fixedly connected to the corresponding side wing (103).

3. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 2, characterized in that: The locking mechanism (2) includes a U-shaped seat (201) disposed on one side of the side wing (103) and slide rods (203) fixed inside the U-shaped seat (201) in a symmetrical arrangement. A pressing plate (202) is disposed inside the U-shaped seat (201). The pressing plate (202) slides on the surface of the two sets of slide rods (203) through the through holes. A threaded rod (206) is threadedly connected to one side of the U-shaped seat (201) through the threaded hole. A symmetrically arranged limiting ring (205) is fixed on the side of the pressing plate (202) near the threaded rod (206). One end of the connecting rope (104) passes through the two sets of limiting rings (205), and the connecting rope (104) is located between the pressing plate (202) and the threaded rod (206).

4. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 3, characterized in that: Multiple sets of springs (204) are fixedly installed between the extrusion plate (202) and the U-shaped seat (201).

5. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 3, characterized in that: One end of the threaded rod (206) is rotatably connected to a rotating drum (207).

6. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 4, characterized in that: Anti-slip pads (208) are fixedly installed on the side of the extrusion plate (202) away from the limiting ring (205) and on the side of the inner wall of the U-shaped seat (201) away from the spring (204).

7. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 6, characterized in that: The extrusion plate (202) has an arc-shaped surface structure on one side.

8. The non-bonded pressure dispersion type anchor cable bag-type grout stop ring according to claim 7, characterized in that: One side of the extrusion plate (202) is arc-shaped, and the arc-shaped surface is in close contact with the anti-slip pad (208).

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