CN214656994U - Bag type expansion pressure dispersion type anchor rod with built-in reinforced steel cage - Google Patents

Abstract

The utility model relates to a bag formula expansion pressure dispersion type stock of built-in reinforcing bar cage. The method specifically comprises the following steps: two bearing seats; the upper bag opening and the lower bag opening at the upper end and the lower end are respectively and correspondingly connected with an upper bearing seat and a lower bearing seat; the middle anchor rod body corresponds to the middle part of the bearing seats and sequentially penetrates through the two bearing seats from top to bottom; the locking nut is screwed on the middle anchor rod body and tightly pressed on the bearing seat; the vertical reinforcing steel bars are connected between the two bearing seats and are arranged around the middle anchor rod body; after the grouting is performed into the bag through the grouting pipe, the formed solid body can be fixedly connected with the middle anchor rod body and the vertical reinforcing steel bars. The utility model discloses an anchor rod is in upper and lower two bear between the seat still be connected with vertical reinforcing bar around the middle part stock body of rod, and the knot entity that forms after the slip casting in the sack can together concreties with the middle part stock body of rod and vertical reinforcing bar like this, has improved the concrete in the sack and has tied the solid compressive strength, and then has promoted the reliability of anchor rod when bearing.

Description

Bag type expansion pressure dispersion type anchor rod with built-in reinforced steel cage

Technical Field

The utility model relates to a bag formula expansion pressure dispersion type stock of built-in reinforcing bar cage.

Background

Along with a large amount of construction of capital construction projects, the underground construction depth is gradually deepened, the usage amount of the anchoring member is larger and larger, and the requirement on the bearing capacity of the anchoring member is higher and higher. In order to increase the bearing capacity of the anchoring element, various types of improved anchoring elements have been proposed in the prior art, in which the bag-type expanded anchor is advanced and can provide a greater bearing capacity.

Chinese utility model patent that the bulletin number is CN206941581U just discloses a during assembly bag type enlarged footing stock, this kind of stock includes the upper and lower relative arrangement's the seat that bears, two bear and be connected with expander section sleeve pipe between the seat, the both ends sack of bag is connected respectively and is born on the seat from top to bottom and form confined slip casting space with bearing seat and expander section sleeve pipe jointly, on bear and install the slip casting pipe that stretches into the slip casting space and the discharge valve in intercommunication slip casting space on the seat, finish rolling twisted steel is the stock body of rod and passes and bears the seat on, expander section sleeve pipe and bear the seat down, and the lower extreme has twisted the atress nut soon.

This kind of stock bears seat and bag through connecting on finish rolling twisted steel, forms the cement knot entity through slip casting in the bag, compares traditional anchor component and has improved the bearing capacity, but the compressive strength of the cement knot entity in the slip casting space is lower, is squashed when bearing easily, the promotion of very big influence stock bearing capacity.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bag formula expander pressure dispersion type stock of built-in reinforcing bar cage for it is lower to solve current bag formula expander stock cement solid compressive strength, and the stock bears the problem that the effect is not good.

The utility model discloses a bag formula of built-in reinforcing bar cage expands pressure dispersion type stock includes:

two bearing seats which are oppositely arranged up and down;

the upper bag opening and the lower bag opening at the upper end and the lower end are respectively and correspondingly connected with an upper bearing seat and a lower bearing seat;

the grouting pipe is connected to the bearing seat on the upper side;

the middle anchor rod body corresponds to the middle part of the bearing seats and sequentially penetrates through the two bearing seats from top to bottom;

the locking nut is screwed on the middle anchor rod body and tightly pressed on the bearing seat;

the vertical reinforcing steel bars are connected between the two bearing seats and arranged around the middle anchor rod body, and a plurality of vertical reinforcing steel bars and the upper bearing seat and the lower bearing seat form a cage-shaped structure;

after the grouting is performed into the bag through the grouting pipe, the formed solid body can be fixedly connected with the middle anchor rod body and the vertical reinforcing steel bars.

The utility model discloses a bag formula of built-in reinforcing bar cage expands pressure dispersion type stock still is connected with vertical reinforcing bar around the middle part stock body of rod between two upper and lower carrier seats, vertical reinforcing bar forms cage-like structure with carrier seat, concreties in an organic whole through cage-like structure and durable body, the knot entity that forms after the slip casting in the bag like this can together concreties with the middle part stock body of rod and vertical reinforcing bar, has improved the solid compressive strength of knot in the bag greatly, very big promotion the bearing capacity of stock.

Furthermore, the vertical reinforcing steel bars are fixedly connected with circumferential reinforcing steel bars surrounding the vertical reinforcing steel bars. The circumferential reinforcing steel bars enable the structural strength of the cage-shaped structure to be better, the consolidation parts between the cage-shaped structure and the solid bodies to be denser, and the compressive strength of the solid bodies is better.

Furthermore, the circumferential reinforcing steel bars are spiral reinforcing steel bars which extend spirally from top to bottom. The circumferential reinforcing steel bars are arranged into spiral reinforcing steel bars, so that the consolidation part between the circumferential reinforcing steel bars and the solid body is more three-dimensional, and the compressive strength of the solid body is further improved.

Furthermore, the spiral reinforcing steel bars are fixed on the outer sides of the vertical reinforcing steel bars, so that the manufacturing and processing are convenient.

As an optimized scheme, the bearing seat comprises a bearing plate and a sleeve fixedly connected to one side face of the bearing plate, the middle anchor rod body is arranged on the bearing plate in a penetrating mode, a locking nut is tightly pressed on the bearing plate, a bag opening of the bag is connected to the outer wall of the sleeve, and the vertical steel bar is located on the inner side of the sleeve. This kind of structural style's bearing seat is convenient for on the one hand to be connected with the stock body of rod and realizes transmission and the dispersion of bearing capacity, and the installation of the bag of also being convenient for in addition, simple structure reduces the processing degree of difficulty.

Furthermore, a flexible sealing component is clamped between the locking nut and the middle anchor rod body and between the locking nut and the bearing plate, and is used for ensuring sealing and avoiding slurry leakage.

Further, the telescopic section of thick bamboo wall is rolled on and is formed with the bulge loop, forms the spread groove between the edge of bulge loop and loading board, and the sack of bag is connected in the spread groove through the structure of tightly hooping. The bag mouth of the bag is arranged in the connecting groove through the tightening structure, so that the reliable connection between the bag and the bearing seat is ensured, and the structure is simpler.

Furthermore, an elastic sealing component is arranged between the bag mouth of the bag and the groove bottom of the connecting groove. The elastic sealing component can further ensure the sealing between the bag hooped on the sleeve and the smooth outer wall surface of the sleeve, and prevent slurry leakage.

Preferably, the elastic sealing member is a double-sided adhesive tape sandwiched between the mouth of the pouch and the wall of the sleeve. The double-sided adhesive tape can not only bond the bag opening on the outer wall of the sleeve, but also clamp the bag opening through the matching of the elasticity of the tape body and the tightening structure.

In addition, be in on the downside of the loading board of the bearing seat of downside fixed mounting have with the lower extreme cover of the middle part stock body of rod protective cap in inside, be equipped with the discharge orifice that link up the plate body on the loading board of the bearing seat of downside to supply the thick liquid in the sack to flow into in the protective cap and then with the consolidation of the middle part stock body of rod and lock nut including. Therefore, the lower end of the middle anchor rod body and the locking nut can be protected and prevented from corrosion.

Drawings

Fig. 1 is a schematic structural view of a bag-type expanded pressure dispersing anchor rod with a built-in reinforcing cage according to an embodiment of the present invention in a use state;

fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: 1. a middle anchor rod body; 11. splicing the anchor rod body; 12. heat-shrinking the sealed tube; 13. an upper end anchorage device; 20. vertical reinforcing steel bars; 21. spiral reinforcing steel bars; 3. a bearing seat; 30. a carrier plate; 31. a sleeve; 300. an overflowing hole; 310. an outer convex ring; 4. a grouting pipe; 40. a one-way valve; 5. a pouch; 6. locking the nut; 61. a flexible sealing member; 7. a tightening structure; 73. an elastic sealing member; 8. an exhaust valve; 9. a protective cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses a specific embodiment one of bag formula extension pressure dispersion type stock of built-in reinforcing bar cage:

referring to fig. 1, a schematic diagram of a state of the bag-type expansion pressure dispersing anchor rod with a built-in reinforcement cage of the present embodiment in use, the bag-type expansion pressure dispersing anchor rod with a built-in reinforcement cage of the present embodiment includes two bearing seats 3, the two bearing seats 3 are arranged oppositely, and the "up and down" direction thereof is based on an orientation of the bag-type expansion pressure dispersing anchor rod with a built-in reinforcement cage in use. Bear seat 3 includes loading board 30 and sleeve 31, and sleeve 31 fixed connection is on one side face of loading board 30, and the sleeve 31 of bearing the seat on is in the downside of its loading board 30, and the sleeve 31 of bearing the seat down is in the upside of its loading board 30, and the central point of loading board 30 puts and is provided with the through-hole.

The bag type expansion pressure dispersion type anchor rod with the built-in reinforcing steel bar cage further comprises a middle anchor rod body 1, the middle anchor rod body 1 penetrates through and extends out of a part of a through hole in the central position on the upper bearing seat and the lower bearing seat bearing plate 30 respectively, then the extending part of the middle anchor rod body 1 is connected with a locking nut 6, the locking nut 6 is tightly pressed with the bearing seat 3, and the fixed connection of the middle anchor rod body 1 and the upper bearing seat and the lower bearing seat is realized.

In addition, flexible sealing member 61 has been arranged between lock nut 6 and the middle part stock body of rod 1, and flexible sealing member 61 can be the material that has sealing effect such as oil hemp, rubber strip, closely twines flexible sealing member 61 along the screw thread line of the middle part stock body of rod 1 with the 6 coupling part of lock nut, locks lock nut 6 with the middle part stock body of rod 1 again, can strengthen the sealed effect between the lock nut 6 and the middle part stock body of rod 1 like this. Also in this way, when the locking nut 6 is screwed tightly against the carrier plate 30, part of the flexible sealing member 61 is squeezed between the locking nut 6 and the carrier plate 30, while achieving a sealing fit between the locking nut and the carrier plate.

The bag type expansion pressure dispersion type anchor rod with the built-in reinforcing steel bar cage further comprises a bag 5, the bag 5 is of a bag structure with two open ends, bag openings at two ends of the bag 5 are respectively connected to the sleeves 31 of the upper bearing seat 3 and the lower bearing seat 3, and a sealed grouting space is formed by the bag and the upper bearing seat 3 and the lower bearing seat 3 together.

The specific connection structure of the pocket 5 and the carrier 3 can be seen in fig. 2. An outer convex ring 310 is formed on the wall of the sleeve 31 through rolling, the size of the bearing plate 30 is larger than the outer diameter of the sleeve 31 and extends out of the outer wall of the sleeve 31, and then the outer convex ring 310, the edge of the bearing plate 30 and the sleeve between the two form an annular connecting groove together. The groove bottom of the connecting groove is coated with an elastic sealing member 73, and the mouth of the pocket 5 is coated on the elastic sealing member 73 and is tightened by a tightening structure 7. The elastic sealing component 73 is a double-sided adhesive tape, the tape body of the double-sided adhesive tape has certain thickness and elasticity, the double-sided adhesive tape can not only bond the bag opening on the outer wall of the sleeve 31, but also clamp the bag opening through the elasticity of the tape body and the cooperation of the tightening structure 7. The bag mouth is tightly held in the connecting groove by the tightening structure 7, and the position of the tightening structure 7 can be stopped by the groove wall of the connecting groove to prevent slipping.

The bearing plate 30 of the upper bearing seat is also provided with a grouting pipe 4, the upper end of the grouting pipe 4 extends out of the upper part of the bearing plate 30 of the upper bearing seat, and the lower end of the grouting pipe extends into the grouting space. The pipe wall of the grouting pipe 4 at the upper side of the lower end is also provided with a one-way valve 40, and the one-way valve 40 is used for avoiding the backflow of the slurry after the slurry is flushed into the grouting space through the grouting pipe 4.

Specifically, in this embodiment, the structure of the check valve adopts the following manner: the pipe wall of the grouting pipe 4 is provided with a lateral through hole, and an elastic sleeve is sleeved on the grouting pipe 4 at a position corresponding to the lateral through hole and tightly clasped on the pipe wall. During grouting, the hydraulic pressure in the grouting pipe 4 is high, the slurry extrudes the elastic sleeve from inside to outside and flows out from an extrusion gap between the elastic sleeve and the pipe wall to enter a grouting space, and when the pressure in the grouting pipe 4 is relieved after grouting is finished, the elastic sleeve tightly holds the pipe wall to plug the radial through hole.

In addition, be provided with discharge valve 8 on the loading board 30 of last bearing seat, discharge valve 8's effect is when the slip casting in to the slip casting space, and the inside original air in slip casting space can be discharged smoothly, prevents the inside slip casting insufficient phenomenon in slip casting space.

The bearing plate 30 of the lower bearing seat is provided with an overflowing hole 300 and a protective cap 9. The helmet 9 is connected to the lower side surface of the bearing plate 30 through a bolt, the middle anchor rod body 1 and the locking nut 6 are sealed in the inner space of the bearing plate, and the lower end of the helmet 9 is provided with a tip structure, so that an anchor rod can be conveniently sunk into a drilled hole when the helmet is used. The overflowing hole 300 can enable slurry in the grouting space to flow into an inner space formed between the protective cap 9 and the bearing plate 30, the slurry is solidified and then plays a role in sealing protection for the middle anchor rod body 1 and the locking nut 6 in the inner space, and the middle anchor rod body 1 and the locking nut 6 are prevented from being corroded.

In particular, a cage-shaped structure is connected between the upper bearing seat 3 and the lower bearing seat 3. As shown in fig. 1 and 2, the cage-like structure includes a plurality of vertical reinforcements 20, the upper ends of the vertical reinforcements 20 are connected to the lower side surface of the bearing plate 30 of the upper bearing seat, the lower ends of the vertical reinforcements are connected to the upper side surface of the bearing plate 30 of the lower bearing seat, the whole cage-like structure is uniformly arranged in a surrounding manner, and the number of the vertical reinforcements can be 3, 4, 5 or more. The connection mode between the vertical steel bars 20 and the bearing plate 30 is welding.

The cage-shaped structure is also fixedly connected with a circumferential reinforcing steel bar of which the circumference surrounds the vertical reinforcing steel bar. In this embodiment, the circumferential reinforcing steel bars are spiral reinforcing steel bars 21, and the spiral reinforcing steel bars 21 are spirally wound on the outer sides of the vertical reinforcing steel bars 20 from top to bottom. The arrangement of the cage-shaped structure and the circumferential reinforcing steel bars greatly improves the compressive strength of the knot bodies in the bag, and the bearing effect of the bag-type expansion pressure dispersion type anchor rod of the whole built-in reinforcing steel bar cage is enhanced.

In order to facilitate the transportation and storage of the bag type expansion pressure dispersion type anchor rod with the built-in reinforcing steel bar cage, the length of the middle anchor rod body 1 extending out of the upper side of the bearing plate 30 of the upper bearing seat is limited, in the using process, as shown in fig. 1, the continuous-connection anchor rod body 11 can be welded according to actual conditions, the upper end of the continuous-connection anchor rod body 11 is connected with an upper anchorage device 13, and the joint of the continuous-connection anchor rod body 11 and the middle anchor rod body 1 is sealed by thermal shrinkage of a thermal shrinkage sealing pipe 12 for protection.

The utility model discloses an anchor rod is when using, in inserting the drilling that the anchor rod is whole to bore in advance, until sinking the predetermined degree of depth of drilling, through slip casting pipe slip casting in to the slip casting space to expand the bag, wait the grout solidification and can play bearing effect, convenient operation. The utility model discloses a bag formula of built-in reinforcing bar cage expands pressure dispersion type stock has increased the whole volume of stock in the stratum, has higher bearing capacity, and setting up of cage-like structure has increased the inside compressive strength who ties the entity of bag moreover, has promoted the reliability of whole bag formula of built-in reinforcing bar cage expands pressure dispersion type stock when bearing. The utility model discloses an anchor rod not only can play fine anchor effect in the side slope support, and anti floating of anchor to underground building such as basement, underground parking garage plays fine effect moreover, effectively prevents to produce great buoyancy and whole lifting or local top crack underground building because of stratum water to underground building.

The utility model discloses a bag-type expansion pressure dispersion type stock of built-in reinforcing bar cage is not limited to the embodiment that has introduced above the utility model discloses a on the basis of design concept, can also produce a lot of deformation embodiments.

For example, in other embodiments, different from the first embodiment described above, the vertical rebars may be arranged in 2 or even more circles when being arranged in a surrounding manner, the whole is in a concentric ring shape, and on each circle of vertical rebars, the spiral rebars may also be wound by a plurality of rebars, and the number is not limited; or the vertical reinforcements are arranged in a spiral surrounding manner in the projection in the vertical direction, or in a polygonal star surrounding manner.

For example, in other embodiments, unlike the embodiment described above, the circumferential reinforcement may be hoop reinforcement, which is located inside the cage-like structure surrounded by the vertical reinforcement, and the portions in contact with the vertical reinforcement are welded. The number of the hoop reinforcement arranged in the vertical direction of the vertical reinforcement may be 1, 2, 3, 5 or even more.

For example, in other embodiments, unlike the first embodiment described above, the resilient sealing member is a rubber pad or foam pad; similarly, the flexible sealing member may be a raw tape or an asbestos thread.

Or in other embodiments, different from the above-described embodiment, the bearing seat is a cylindrical structure with a certain height, the middle anchor rod body and the vertical steel bar are both connected to the end surface of the cylindrical structure, the grouting pipe penetrates through the cylindrical structure, and the bag opening of the bag is tightly connected to the outer peripheral surface of the cylindrical structure.

In yet another alternative embodiment, which is different from the above-described embodiment, the lock nut at the lower side may be replaced by a lock nut, the threaded hole of the lock nut is a blind hole, and the lock nut is screwed on the lower end of the middle anchor rod body and covers the end face of the middle anchor rod body inside.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The bag-type expanding pressure dispersion type anchor rod of the built-in reinforcement cage comprises:

two bearing seats (3) which are arranged oppositely up and down;

the bag openings at the upper end and the lower end of the bag (5) are respectively and correspondingly connected with an upper bearing seat (3) and a lower bearing seat (3);

the grouting pipe (4) is connected to the bearing seat (3) on the upper side;

characterized by, the bag type of built-in reinforcement cage expands the dispersed stock of pressure and still includes:

the middle anchor rod body (1) corresponds to the middle part of the bearing seat (3) and sequentially penetrates through the two bearing seats (3) from top to bottom;

the locking nut (6) is screwed on the middle anchor rod body (1) and tightly pressed on the bearing seat (3);

the vertical reinforcing steel bars (20) are connected between the two bearing seats (3) and arranged around the middle anchor rod body (1), and a plurality of vertical reinforcing steel bars (20) form a cage-shaped structure with the upper bearing seat (3) and the lower bearing seat (3);

after grouting into the bag (5) through the grouting pipe (4), the formed solid body can be fixedly connected with the middle anchor rod body (1) and the vertical reinforcing steel bars (20).

2. The sac-type expandable pressure dispersion type anchor rod with a built-in reinforcing cage according to claim 1, wherein the vertical reinforcing steel bars (20) are further fixedly connected with circumferential reinforcing steel bars surrounding the vertical reinforcing steel bars (20).

3. The balloon type expandable pressure dispersing type anchor rod with built-in reinforcement cage according to claim 2, wherein the circumferential reinforcement is a spiral reinforcement (21) extending spirally from top to bottom.

4. The balloon type expandable pressure dispersing type anchor rod with a built-in reinforcing cage according to claim 2, wherein the circumferential reinforcing steel bars are fixed to the outer sides of the vertical reinforcing steel bars (20).

5. The bag type expansion pressure dispersion type anchor rod with the built-in reinforcing cage according to any one of claims 1 to 4, wherein the bearing seat (3) comprises a bearing plate (30) and a sleeve (31) fixedly connected to one side surface of the bearing plate (30), the middle anchor rod body (1) is threaded on the bearing plate (30), the locking nut (6) is pressed on the bearing plate (30), the bag opening of the bag (5) is connected to the outer wall of the sleeve (31), and the vertical reinforcing steel bar (20) is arranged on the inner side of the sleeve (31).

6. The bag type expansion pressure dispersion type anchor rod with the built-in reinforced steel cage as claimed in claim 5, wherein a flexible sealing member (61) is clamped between the locking nut (6) and the middle anchor rod body (1) and the bearing plate (30) for ensuring sealing and avoiding slurry leakage.

7. The bag type expansion pressure dispersion type anchor rod with the built-in reinforcing cage as claimed in claim 5, wherein an outer convex ring (310) is roll-formed on the wall of the sleeve (31), a connection groove is formed between the outer convex ring (310) and the edge of the bearing plate (30), and the mouth of the bag (5) is connected in the connection groove through a tightening structure (7).

8. The balloon type expandable pressure dispersing anchor rod of the built-in steel reinforcement cage as claimed in claim 7, wherein an elastic sealing member (73) is provided between the mouth of the balloon (5) and the bottom of the connecting groove.

9. The balloon-type expandable pressure-dispersing anchor rod with a built-in reinforcement cage according to claim 8, wherein the elastic sealing member (73) is a double-sided adhesive tape interposed between the mouth of the balloon (5) and the wall of the sleeve (31).

10. The bag type expansion pressure dispersion type anchor rod with the built-in reinforced steel bar cage as claimed in claim 5, wherein a protective cap (9) for covering the lower end of the middle anchor rod body (1) is fixedly installed on the lower side surface of the bearing plate (30) of the bearing seat (3) at the lower side, and an overflowing hole (300) penetrating through the plate body is formed in the bearing plate (30) of the bearing seat (3) at the lower side, so that slurry in the bag (5) flows into the protective cap (9) to further fix the middle anchor rod body and the locking nut therein.

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