A cage core bag for anchor rod

Abstract

The present invention discloses a cage core bag for an anchor rod, comprising a cage core and an outer bag sleeved on the outside of the cage core; two symmetrically arranged fixing seats are provided above the cage core, and the fixing seat located at the bottom is connected to the top of the cage core; an inner bag is provided between the two fixing seats, the inner bag is located inside the outer bag and close to the top of the outer bag, and the inner bag is used to support the upper part of the outer bag; an inner bag upper opening is provided on the upper part of the inner bag, and the inner bag upper opening is sleeved on the outside of the fixing seat located at the top; a first locking member is provided on the outside of the outer bag upper opening, and the first locking member is used to form a sealed connection between the outer bag upper opening and the corresponding fixing seat. The present invention can effectively prevent the outer bag from being attached to and wrapped around the anchor rod body or the cage core during grouting, and at the same time, the anchor rod has good corrosion resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of anchor rods, in particular to a cage core bag for anchor rods. Background Art

[0002] Anchor bolts are a fundamental component of coal mine roadway support, reinforcing the surrounding rock mass, allowing it to support itself. Anchor bolts are now used not only in mines but also in engineering technology, reinforcing slopes, tunnels, dams, and other structures.

[0003] Most existing bag anchor rods adopt the method of directly putting the bag on the outside of the anchor rod. Although this method can isolate the anchor rod from groundwater and improve the resistance to groundwater corrosion, during the grouting process, due to the effect of gravity, the slurry first fills the bottom of the bag, and the other parts of the bag do not have a good supporting and expansion effect. The bag is easy to adhere to and entangle on the anchor rod or cage core, thereby affecting the overall expansion effect of the bag, thereby reducing the force effect and easily causing safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a cage core bag for an anchor rod. When grouting begins, the inner bag is used to support the upper part of the outer bag, and the bottom of the outer bag is expanded to achieve a good overall expansion effect, reducing or avoiding the outer bag from sticking to and wrapping around the anchor rod body or cage core.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a cage core bag for an anchor rod, comprising a cage core and an outer bag sleeved outside the cage core;

[0006] Two symmetrically arranged fixing seats are provided above the cage core, and the fixing seat located at the bottom is connected to the top of the cage core;

[0007] An inner bag is provided between the two fixing seats. The inner bag is located inside the outer bag and close to the top of the outer bag, and is used to support the upper part of the outer bag.

[0008] An upper opening of the inner bag is provided on the upper portion of the inner bag, and the upper opening of the inner bag is sleeved on the outside of the fixing seat located above;

[0009] A first locking member is provided on the outside of the upper opening of the inner bag, and the first locking member is used to form a sealed connection between the upper opening of the inner bag and the corresponding fixing seat;

[0010] The lower portion of the inner bag is provided with an inner bag lower opening, and the inner bag lower opening is sleeved on the outside of the fixing seat located below;

[0011] A second locking member is provided on the outside of the lower opening of the inner bag, and the second locking member is used to form a sealed connection between the upper opening of the inner bag and the corresponding fixing seat;

[0012] A T-shaped column is provided on the top of the upper fixing seat, and an outer bag upper opening is provided on the upper part of the outer bag; a locking component is provided outside the outer bag upper opening, and the locking component is used to form a sealed connection between the outer bag upper opening and the T-shaped column.

[0013] Furthermore, the locking assembly includes two arc-shaped metal sheets coaxially arranged on the outside of the T-shaped column, and a third locking member is commonly arranged on the outside of the two arc-shaped metal sheets;

[0014] The edge of the opening on the outer bag is pressed tightly between the inner side of the arc-shaped metal sheet and the outer side of the T-shaped column to form a sealed connection.

[0015] Furthermore, the cage core is a hollow metal mesh tube structure that is permeable to slurry.

[0016] Furthermore, when the inner bag and the outer bag are completely filled, there is a gap between the outer wall of the inner bag and the inner wall of the inner bag.

[0017] Furthermore, a fixing head is provided at the bottom end of the cage core, and a fourth locking piece is provided on the outside of the fixing head. The fourth locking piece is used to press the bottom end of the outer bag against the lower part of the fixing head.

[0018] Furthermore, the first locking member, the second locking member, the third locking member and the fourth locking member are all locking clamps or throat clamps.

[0019] Furthermore, it also includes a first grouting pipe and a second grouting pipe. The first grouting pipe sequentially penetrates the T-shaped column and two fixing seats and communicates with the interior of the cage core. The second grouting pipe sequentially penetrates the T-shaped column and the fixing seat located above and communicates with the interior of the inner bag.

[0020] Furthermore, the interior of the outer bag is connected to the first exhaust pipe, and the first exhaust pipe passes through a T-shaped column and one of the arc-shaped metal sheets;

[0021] The interior of the inner bag is connected to a second exhaust pipe, and the second exhaust pipe penetrates the T-shaped column and the fixing seat located above.

[0022] Furthermore, the second grouting pipe and the second exhaust pipe are respectively equipped with a first sealing plug and a second sealing plug, and the first sealing plug and the second sealing plug are used to respectively block the second grouting pipe and the second exhaust pipe when the inner bag is filled with slurry.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides an inner bag and an outer bag. When grouting begins, the inner bag and the outer bag are grouted simultaneously. The inner bag facilitates the expansion of the upper part of the outer bag, thereby achieving a good expansion effect on the outer bag.

[0025] 2. At the same time, the anchor rod is protected by the dragon core, slurry, T-shaped column, etc., which effectively improves the performance of anti-groundwater erosion;

[0026] 3. In addition, a locking assembly and a fourth locking member are provided to facilitate the fixation of the outer bag and improve the sealing connection performance of the outer bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the installation of the outer bag and the inner bag of the present invention;

[0031] Figure 4 This invention Figure 3 A magnified schematic diagram of area A in the middle;

[0032] Figure 5 This is the installation intention of the fixing seat and locking assembly of the present invention;

[0033] Figure 6 This is a schematic diagram of the installation of the first grouting pipe, the second grouting pipe, the first exhaust pipe, and the second exhaust pipe of the present invention;

[0034] Figure 7 It is a structural schematic diagram of the cage core of the present invention;

[0035] Figure 8 Schematic diagram of the structure of the outer pouch of the present invention;

[0036] Figure 9 Schematic diagram of the structure of the inner capsule bag of the present invention;

[0037] In the figure: 1. outer bag; 11. upper opening of outer bag; 2. cage core; 21. fixing head; 211. fourth locking member; 3. inner bag; 31. upper opening of inner bag; 32. lower opening of inner bag; 4. fixing seat; 41. first limiting plate; 42. limiting column; 43. second limiting plate; 44. first locking member; 45. second locking member; 5. locking assembly; 51. arc-shaped metal sheet; 52. third locking member; 6. T-shaped column; 61. first grouting pipe; 62. second grouting pipe; 63. first exhaust pipe; 631. first sealing plug; 64. second exhaust pipe; 641. second sealing plug; 7. anchor rod. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figures 1-9 The present invention provides a technical solution: a cage core bag for an anchor rod, comprising a cage core 2 and an outer bag 1 arranged on the outside of the cage core 2, the cage core 2 is arranged to be a hollow metal mesh tube structure, which can realize the penetration of slurry, and the outer bag 1 is made of a flexible material that is impermeable to slurry; two symmetrically arranged fixing seats 4 are arranged above the cage core 2, the fixing seat 4 includes a limiting column 42, and the two ends of the limiting column 42 are coaxially provided with a first limiting plate 41 and a second limiting plate 43, and an inclined transition is provided between the first limiting plate 41 and the limiting column 42. At the same time, the first limiting plates 41 included in the two fixing seats 4 are adjacent to each other, that is, the first limiting plate 41 located at the upper fixing seat 4 is located below the second limiting plate 43 of the fixing seat 4, and the first limiting plate 41 located at the lower fixing seat 4 is located above the second limiting plate 43 of the fixing seat 4; the fixing seat 4 located at the lower end is connected to the top of the cage core 2, specifically, the second limiting plate 43 located at the lower fixing seat 4 is connected to the top of the cage core 2.

[0040] An inner bag 3 is arranged between the two fixing seats 4. The inner bag 3 and the outer bag 1 are made of the same material, and the inner bag 3 has two openings, namely an upper opening 31 of the inner bag and a lower opening 32 of the inner bag. The upper opening 31 of the inner bag and the lower opening 32 of the inner bag are respectively arranged on the outside of the limiting columns 42 of the two fixing seats 4. A sealing connection is formed between the upper opening 31 of the inner bag and the corresponding limiting column 42 through a first locking member 44, and a sealing connection is formed between the lower opening 32 of the inner bag and the corresponding limiting column 42 through a second locking member 45; the first locking member 44 and the second locking member 45 can adopt locking structures such as locking clamps or throat clamps.

[0041] The inner bag 3 is located inside the outer bag 1 and close to the top of the outer bag 1, and the inner bag 3 is grouted to support the upper part of the outer bag 1; the overall thickness of the inner bag 3 when the inner cavity is fully supported can be set to one tenth of the overall thickness when the inner cavity of the outer bag 1 is fully supported, or even smaller. The inner bag 3 is filled with slurry to support it during grouting, thereby being used to support the upper part of the outer bag 1, so that the upper part of the outer bag 1 is first supported when the outer bag 1 is grouting; at the same time, since the bottom of the outer bag 1 is supported first during grouting, by grouting the inner bag 3 and the outer bag 1 at the same time, the top and bottom of the outer bag 1 can be supported at the same time, and under the effect of simultaneous pulling on the top and bottom of the outer bag 1, a good support effect is achieved on the middle part of the outer bag 1, and then a good support effect is achieved on the outer bag 1 as a whole, thereby reducing or avoiding the outer bag 1 adhering to and wrapping around the anchor body or cage core 2 during grouting.

[0042] At the same time, when the inner bag 3 and the outer bag 1 are fully filled, there is a gap between the outer wall of the inner bag 3 and the inner wall of the inner bag 3. Through this design, when the outer bag 1 is grouting, the slurry can flow and accumulate to the top position of the outer bag 1, thereby achieving complete filling of the outer bag 1.

[0043] A T-shaped column 6 is coaxially arranged on the top of the second limiting plate 43 located at the upper fixing seat 4, and an outer bag upper opening 11 is arranged on the upper part of the outer bag 1; a locking component 5 is arranged outside the outer bag upper opening 11, and the locking component 5 is used to form a sealed connection between the outer bag upper opening 11 and the fixing column; the locking component 5 includes two arc-shaped metal sheets 51 coaxially arranged outside the T-shaped column 6, the two arc-shaped metal sheets 51 can be made of aluminum or copper sheets, and a third locking member 52 is commonly arranged on the outside of the two arc-shaped metal sheets 51; the outer bag upper opening The edge of 11 is pressed between the inner side of the arc-shaped metal sheet 51 and the outer side of the T-shaped column 6, and a sealed connection is formed; the other areas of the outer bag opening 11 except the edge are locked by the third locking member 52, and are tightly attached to or sealed with the outer ring surface of the arc-shaped metal sheet 51; in addition, the upper diameter of the T-shaped column 6 is larger than its lower diameter, and the edge of the outer bag opening 11 is pressed between the inner side of the arc-shaped metal sheet 51 and the outer side wall of the upper part of the T-shaped column 6, and a sealed connection is formed, thereby forming a good sealing effect on the outer bag 1.

[0044] A fixed head 21 is provided at the bottom end of the cage core 2, and the lower part of the fixed head 21 is provided as a column structure, which is coaxial with the limiting column 42 and the T-shaped column 6; the outer sleeve of the fixed head 21 is provided with a fourth locking piece 211, and the fourth locking piece 211 is used to press the bottom end of the outer bag 1 to the lower part of the fixed head 21; the third locking piece 52 and the fourth locking piece 211 can also adopt locking clamps or throat clamps.

[0045] The anchor bag also includes a first grouting pipe 61 and a second grouting pipe 62, both of which are used to connect to the external grouting pipe; the first grouting pipe 61 sequentially penetrates the T-shaped column 6, the two fixing seats 4 and communicates with the interior of the cage core 2, and the second grouting pipe 62 sequentially penetrates the T-shaped column 6 and the fixing seat 4 located above, and communicates with the interior of the inner bag 3; the first grouting pipe 61 is used to inject slurry into the interior of the outer bag 1, and the second grouting pipe 62 is used to inject slurry into the interior of the inner bag 3; the interior of the outer bag 1 is connected to the first exhaust pipe 63, and the first exhaust pipe 63 is arranged between the T-shaped column 6 and one of the arcs shaped metal sheet 51, and the first exhaust pipe 63 is fixed on the T-shaped column 6; the interior of the inner bag 3 is connected with the second exhaust pipe 64, the second exhaust pipe 64 penetrates the T-shaped column 6 and the fixing seat 4 located above, and is fixed on the T-shaped column 6 and the fixing seat 4; the first exhaust pipe 63 and the second exhaust pipe 64 are used to discharge the gas inside the outer bag 1 and the inner bag 3 respectively during the grouting process. At the same time, the top height of the first exhaust pipe 63 is set to be lower than the top height of the first grouting pipe 61, and the top height of the second exhaust pipe 64 is set to be lower than the second grouting pipe 62, which can conveniently judge whether the outer bag 1 and the inner bag 3 are filled with slurry.

[0046] The second grouting pipe 62 and the second exhaust pipe 64 are respectively equipped with a first sealing plug 631 and a second sealing plug 641. The first sealing plug 631 and the second sealing plug 641 are used to block the second grouting pipe 62 and the second exhaust pipe 64 when the inner bag 3 is filled with slurry. When grouting the inner bag 3, the slurry is poured in through the second grouting pipe 62. When the cavity of the inner bag 3 is filled with slurry and the slurry overflows from the second exhaust pipe 64, it can be judged that the inner bag 3 is filled with slurry. At this time, the top end of the second grouting pipe 62 and the second exhaust pipe 64 can be cleaned and the first sealing plug 631 and the second sealing plug 641 can be inserted respectively. After the second grouting pipe 62 and the second exhaust pipe 64 are blocked respectively by the first sealing plug 631 and the second sealing plug 641, the slurry is prevented from squeezing the inner bag 3 during the grouting process of the outer bag 1, so that the slurry inside the inner bag 3 overflows from the second grouting pipe 62 and the second exhaust pipe 64.

[0047] A threaded hole is provided inside the fixing head 21, and the bottom end of the anchor rod 7 is connected to the inside of the threaded hole through threaded cooperation. The two fixing seats 4 and the T-shaped column 6 are provided with through holes adapted to the anchor rod 7, so that the installed anchor rod 7 can penetrate the T-shaped column 6 and the two fixing seats 4 in turn.

[0048] Working principle: First, slurry is poured into the outer bag 1 and the inner bag 3 through the first grouting pipe 61 and the second grouting pipe 62 at the same time. Since the thickness of the inner bag 3 is set to be small, its inner cavity can be quickly and fully supported. When the slurry overflows through the second exhaust pipe 64, it is judged that the inner bag 3 is full of slurry. At this time, the slurry is stopped from being poured into the second grouting pipe 62. At the same time, the second grouting pipe 62 and the second exhaust pipe 64 are cleaned at the top end of the pipe mouth, and the second grouting pipe 62 and the second exhaust pipe 64 are blocked respectively by the first sealing plug 631 and the second sealing plug 641. In the process of the inner bag 3 being filled with slurry to support the entire outer wall, the upper part of the outer bag 1 is continuously stretched open, so that the upper part of the outer bag 1 is first stretched open when grouting the outer bag 1. At the same time, since the bottom of the outer bag 1 is first stretched open during grouting, the inner bag 3 is stretched open by the first sealing plug 631 and the second sealing plug 641. The bag 3 and the outer bag 1 are grouted at the same time, so that the top and bottom of the outer bag 1 can be supported at the same time. Under the simultaneous pulling effect of the top and bottom of the outer bag 1, the middle part of the outer bag 1 can be well supported, and then the outer bag 1 as a whole can be well supported, thereby reducing or avoiding the outer bag 1 being attached to and wrapped around the anchor body or cage core 2 during grouting. When the slurry overflows from the first drainage pipe, the grouting work can be completed; because the cage core 2 is permeable to grout, the cage core 2 and the slurry inside the outer bag 1 become one, and the slurry is also bonded to the anchor rod 7, and the inner bag 3 filled with slurry is located inside the slurry of the outer bag 1, and the outer bag 1 has a good supporting effect, which helps to improve the force effect; and the anchor rod 7 is protected by the dragon core, slurry, T-column 6, etc., which effectively improves the performance against groundwater erosion.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cage core bag for an anchor rod, characterized in that: It comprises a cage core (2) and an outer bag (1) sleeved on the outside of the cage core (2); Two symmetrically arranged fixing seats (4) are provided above the cage core (2), and the fixing seat (4) located at the bottom is connected to the top of the cage core (2); An inner bag (3) is provided between the two fixing seats (4), the inner bag (3) being located inside the outer bag (1) and close to the top of the outer bag (1), and the inner bag (3) being used to support the upper part of the outer bag (1); An inner bag upper opening (31) is provided on the upper portion of the inner bag (3), and the inner bag upper opening (31) is sleeved on the outside of the fixing seat (4) located above; A first locking member (44) is provided outside the upper opening (31) of the inner bag (3), and the first locking member (44) is used to form a sealed connection between the upper opening (31) of the inner bag and the corresponding fixing seat (4); The lower portion of the inner bag (3) is provided with an inner bag lower opening (32), and the inner bag lower opening (32) is sleeved on the outside of the fixing seat (4) located below; A second locking member (45) is provided outside the lower opening (32) of the inner bag, and the second locking member (45) is used to form a sealed connection between the lower opening (32) of the inner bag and the corresponding fixing seat (4); A T-shaped column (6) is provided on the top of the upper fixing seat (4), and an outer bag upper opening (11) is provided on the upper part of the outer bag (1); a locking component (5) is provided outside the outer bag upper opening (11), and the locking component (5) is used to form a sealed connection between the outer bag upper opening (11) and the T-shaped column (6); The inner bag (3) and the outer bag (1) are grouted simultaneously to achieve a pulling action on the top and bottom of the outer bag (1) at the same time.

2. The anchor rod cage core bag according to claim 1, characterized in that: The locking assembly (5) comprises two arc-shaped metal sheets (51) coaxially arranged outside the T-shaped column (6), and a third locking member (52) is commonly arranged outside the two arc-shaped metal sheets (51); The edge of the opening (11) on the outer bag is pressed tightly between the inner side of the arc-shaped metal sheet (51) and the outer side of the T-shaped column (6), forming a sealed connection.

3. The anchor rod cage core bag according to claim 1, characterized in that: The cage core (2) is a metal mesh tube structure that is permeable and hollow.

4. The anchor rod cage core bag according to claim 1, characterized in that: When the inner bag (3) and the outer bag (1) are completely filled, there is a gap between the outer side wall of the inner bag (3) and the inner side wall of the inner bag (3).

5. The anchor rod cage core bag according to claim 2, characterized in that: The bottom end of the cage core (2) is provided with a fixing head (21), and the outer sleeve of the fixing head (21) is provided with a fourth locking member (211), and the fourth locking member (211) is used to press the bottom end of the outer bag (1) against the lower part of the fixing head (21).

6. The anchor rod cage core bag according to claim 5, characterized in that: The first locking member (44), the second locking member (45), the third locking member (52) and the fourth locking member (211) are all locking clamps or throat clamps.

7. The anchor rod cage core bag according to claim 1, characterized in that: It also includes a first grouting pipe (61) and a second grouting pipe (62), wherein the first grouting pipe (61) sequentially penetrates the T-shaped column (6), the two fixing seats (4), and communicates with the interior of the cage core (2), and the second grouting pipe (62) sequentially penetrates the T-shaped column (6) and the fixing seat (4) located above, and communicates with the interior of the inner bag (3).

8. The anchor rod cage core bag according to claim 7, characterized in that: The interior of the outer bag (1) is connected to a first exhaust pipe (63), and the first exhaust pipe (63) is penetrated by a T-shaped column (6) and one of the arc-shaped metal sheets (51); The interior of the inner bag (3) is connected to a second exhaust pipe (64), and the second exhaust pipe (64) penetrates the T-shaped column (6) and the fixing seat (4) located above.

9. The anchor rod cage core bag according to claim 8, characterized in that: The second grouting pipe (62) and the second exhaust pipe (64) are respectively equipped with a first sealing plug (631) and a second sealing plug (641). The first sealing plug (631) and the second sealing plug (641) are used to respectively block the second grouting pipe (62) and the second exhaust pipe (64) when the inner bag (3) is filled with slurry.

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