Device for preventing mortar from flowing out of top anchor rod

Abstract

The utility model belongs to the technical field of tunnel supporting equipment, and particularly relates to a top anchor rod mortar outflow prevention device which is characterized in that a plug in the top anchor rod mortar outflow prevention device can be inserted into an anchor rod hole of a top anchor rod; a gap between the plug and the hole wall of the anchor rod hole and a hole in the middle of the plug are plugged through the sealing piece and the sealing plate, the grouting pipe and the exhaust pipe can be inserted into the anchor rod hole through the insertion opening in the sealing plate, mortar is injected into the anchor rod hole through the grouting pipe, the grouting process is completed, and after the grouting process is completed, the grouting pipe is inserted into the anchor rod hole. The grouting pipe and the exhaust pipe are taken out from the inserting opening, the elastic sealing plate can automatically seal the inserting opening under the action of restoring force, the situation that mortar flows out of the anchor rod hole due to the gravity effect is avoided, and therefore the supporting strength of the anchor rod is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel support equipment technical field, especially relates to a top anchor rod mortar anti -outflow device. BACKGROUND

[0002] Anchor rod support refers to a kind of reinforcing support mode used in surface engineering such as slope, rock-soil deep foundation pit and underground chamber construction such as tunnel, stope etc.Using metal piece, wood piece, polymer piece or other materials to make pole column, it is punched into the hole (anchor rod hole) drilled in advance around rock mass or chamber, and using the special structure of its head, pole body and tail plate (also can not use), or relying on the combination of surrounding rock and stable rock mass together to produce suspension effect, composite beam effect, reinforcement effect, to achieve the purpose of support.

[0003] Tunnel support requires that the mortar in anchor rod hole is dense and full;However, in actual construction process, after grouting to the anchor rod hole at the top of tunnel, the mortar in the anchor rod hole at the top of tunnel will flow out of the anchor rod hole due to gravity, causing a certain degree of mortar loss, affecting the strength of anchor rod support.Therefore, to invent a device capable of preventing mortar from flowing out of anchor rod hole is a technical problem to be solved by the skilled in the art. CONTENT OF UTILITY MODEL

[0004] The utility model provides a top anchor rod mortar anti -outflow device to solve the technical problem in prior art that the mortar in anchor rod hole at the top of tunnel will flow out of the anchor rod hole due to gravity, causing a certain degree of mortar loss, leading to the strength of anchor rod support is affected.

[0005] The utility model realizes by the following technical scheme:

[0006] A top anchor rod mortar anti -outflow device, including plug, sealing plate, grouting pipe and exhaust pipe;

[0007] Plug is circular tubular structure, the outer diameter of plug is matched with the diameter of anchor rod hole, and sealing element is arranged on the outer side wall of plug;

[0008] Sealing plate is provided with socket, and elastic sealing plate capable of plugging socket is arranged at socket, sealing plate is arranged at one end of plug, and socket is communicated with plug;

[0009] Grouting pipe and exhaust pipe can top off elastic sealing plate and be inserted at socket.

[0010] In order to better realize the utility model, further optimization is made in the above structure, and the plug includes locking member and extrusion member;

[0011] Extrusion member is circular tubular structure, extrusion part A and outer thread are arranged on the outer side wall of extrusion member, and extrusion part A is arranged close to the insertion end of extrusion member.

[0012] The locking piece is annular structure, the inner side wall of the locking piece is provided with internal thread, the locking piece is sleeved on the extruding piece from the non-insertion end of the extruding piece and is connected through the cooperation of external thread and internal thread;

[0013] The sealing piece is sleeved on the extruding piece and is located between the locking piece and the extruding part A.

[0014] In order to better realize the utility model, further optimization is made in the above structure, the plug further comprises an extruding part B, the extruding part B is circular tubular structure, the extruding part B is sleeved on the extruding piece, and the extruding part B is located between the locking piece and the sealing piece.

[0015] In order to better realize the utility model, further optimization is made in the above structure, the extruding part A is annular structure, and the inner side wall of the extruding part A is fixedly connected with the outer side wall of the extruding piece.

[0016] In order to better realize the utility model, further optimization is made in the above structure, the sealing piece is rubber ring, the inner diameter of the sealing piece is greater than the inner diameter of the extruding piece and is less than the outer diameter of the extruding part A and the extruding part B.

[0017] In order to better realize the utility model, further optimization is made in the above structure, the sealing piece is hollow structure.

[0018] In order to better realize the utility model, further optimization is made in the above structure, the sealing plate and the elastic sealing plate are integrally formed members.

[0019] In order to better realize the utility model, further optimization is made in the above structure, the outer side wall of the grouting pipe and the outer side wall of the exhaust pipe are all provided with anti-skid lines.

[0020] In order to better realize the utility model, further optimization is made in the above structure, the sealing plate is connected to the insertion end of the plug through bolts, and the axis of the plug is perpendicular to the plane where the sealing plate is located.

[0021] One end of the grouting pipe and the exhaust pipe is inserted into the plug from the non-insertion end of the plug, pushes open the elastic sealing plate and is clamped in the insertion opening.

[0022] In order to better realize the utility model, further optimization is made in the above structure, the sealing plate is connected to the non-insertion end of the plug through bolts, and the axis of the plug is perpendicular to the plane where the sealing plate is located.

[0023] One end of the grouting pipe and the exhaust pipe pushes open the elastic sealing plate and is clamped in the insertion opening.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The plug in the top anchor mortar anti-outflow device provided by this utility model can be inserted into the anchor hole of the top anchor. The gap between the plug and the anchor hole wall and the hole in the middle of the plug are sealed by the sealing element and the sealing plate. The grouting pipe and the venting pipe can be inserted into the anchor hole through the inlet on the sealing plate. Mortar is injected into the anchor hole through the grouting pipe to complete the grouting process. After the grouting process is completed, the grouting pipe and the venting pipe are taken out from the inlet. The elastic sealing plate can automatically seal the inlet under the action of the restoring force to prevent the mortar from flowing out of the anchor hole due to gravity, thereby ensuring the support strength of the anchor. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of one embodiment of the top anchor bolt mortar anti-flow device.

[0028] Figure 2 This is a schematic diagram of the top anchor bolt mortar anti-flow device during use.

[0029] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0030] Figure 4 This is a schematic diagram of the structure when the inlet on the sealing plate of the top anchor mortar anti-leakage device is in the open state.

[0031] Figure 5 This is a schematic diagram of the structure when the inlet on the sealing plate of the top anchor mortar anti-flow device is in the closed state.

[0032] Figure 6 This is a schematic diagram of another embodiment of the top anchor bolt mortar anti-flow device.

[0033] In the picture:

[0034] 1. Plug; 11. Locking component; 12. Extrusion component; 121. Extrusion section A; 122. Extrusion section B;

[0035] 2. Sealing plate; 21. Flexible sealing plate; 22. Insertion port;

[0036] 3. Sealing components;

[0037] 4. Grouting pipe;

[0038] 5. Exhaust pipe. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In the embodiments of this application, such as Figures 1 to 6 As shown, the top anchor bolt mortar anti-outflow device includes a plug 1, a sealing plate 2, a grouting pipe 4, and an exhaust pipe 5; wherein,

[0043] The plug 1 is a circular tubular structure. The outer diameter of the plug 1 matches the diameter of the anchor bolt hole. The outer wall of the plug 1 is provided with a sealing element 3 for sealing the gap between the plug 1 and the wall of the anchor bolt hole, so that the plug 1 can be firmly inserted into the anchor bolt hole and prevent the mortar from leaking out from the gap between the plug 1 and the wall of the anchor bolt hole during the grouting process.

[0044] A sealing plate 2 is disposed at one end of the plug 1. The sealing plate 2 has a socket 22 that communicates with the plug 1. An elastic sealing plate 21 for sealing the socket 22 is also provided at the socket 22. (See [reference]). Figure 4and Figure 5 Without grouting, the restoring force of the elastic sealing plate 21 can keep it sealed at the socket 22; the grouting pipe 4 and the vent pipe 5 can push open the elastic sealing plate 21 and insert it at the socket 22.

[0045] Before grouting the anchor bolt hole, the workers can insert the top anchor bolt mortar anti-outflow device into the anchor bolt hole. Specifically, the plug 1 is inserted into the anchor bolt hole, and the sealing part 3 outside the plug 1 is used to seal the gap between the plug 1 and the anchor bolt hole wall.

[0046] Subsequently, the staff can connect the discharge end of the grouting equipment to the end of the grouting pipe 4 located outside the plug 1, and start the grouting equipment to inject mortar into the anchor bolt hole. During the grouting process, the air in the anchor bolt hole can be discharged to the outside through the exhaust pipe 5 to reduce the influence of air pressure and ensure that the mortar can quickly fill the anchor bolt hole.

[0047] After the mortar injection is completed, that is, after the anchor bolt hole is filled with mortar, the workers can take out the grouting pipe 4 and the vent pipe 5 together from the insertion port 22. The elastic sealing plate 21 will automatically seal the insertion port 22 under its restoring force to prevent the mortar from flowing out of the anchor bolt hole due to gravity.

[0048] When installing anchor bolts, workers can use the anchor bolt to open the elastic sealing plate 21 and insert the anchor bolt into the anchor bolt hole through the insertion port 22 to complete the installation of the anchor bolt. Since the mortar inside the anchor bolt hole is not lost, the anchor bolt can be firmly fixed in the anchor bolt hole to ensure the support strength of the anchor bolt.

[0049] It should be noted that the top anchor mortar outflow prevention device is mainly aimed at preventing the outflow of mortar from the top anchor installation location (top anchor hole) of the project (tunnel, mining area, and other underground chambers). The mortar in the top anchor installation location is mainly used to fix the top anchor. In this embodiment, it is referred to as top anchor mortar. The top anchor mortar outflow prevention device can prevent the top anchor mortar from flowing out from the top anchor installation location, thereby improving the stability of the top anchor installation and the support strength of the top anchor.

[0050] Of course, this top anchor mortar anti-outflow device can also be used for anchor holes on the sidewall of the project to prevent mortar in the anchor holes on the sidewall of the project from flowing out.

[0051] In some embodiments, the shape and size of the elastic sealing plate 21 perfectly match the shape and size of the socket 22, and the fixed side of the elastic sealing plate 21 is connected to one side of the socket 22. When it is necessary to install the grouting pipe 4 and the venting pipe 5, the worker can move the movable side of the elastic sealing plate 21 around its fixed side to open the socket 22. At this time, the worker can insert the prepared grouting pipe 4 and the venting pipe 5 into the socket 22. See [reference needed]. Figure 4 ;

[0052] Subsequently, the staff can release the movable side of the elastic sealing plate 21. The movable side of the elastic sealing plate 21 will then move closer to the insertion port 22 under the action of its restoring force, and squeeze the grouting pipe 4 and the exhaust pipe 5 to fix the grouting pipe 4 and the exhaust pipe 5.

[0053] Preferably, both the sealing plate 2 and the elastic sealing plate 21 are made of rubber material and are integrally molded components; in order to avoid the elastic sealing plate 21 from separating from the sealing plate 2, which would cause it to lose its sealing effect.

[0054] In some embodiments, the sealing plate 2 described above is bolted to the insertion end of the plug 1, see [reference]. Figure 1 , Figure 2 and Figure 3 The axis of plug 1 is perpendicular to the plane where sealing plate 2 is located;

[0055] One end of the grouting pipe 4 and the vent pipe 5 extends into the plug 1 from the non-insertion end of the plug 1 and pushes open the elastic sealing plate 21 to lock it at the insertion port 22.

[0056] In some embodiments, the sealing plate 2 described above can also be bolted to the non-insertion end of the plug 1, see [reference]. Figure 6 The axis of plug 1 is perpendicular to the plane where sealing plate 2 is located;

[0057] One end of the grouting pipe 4 and the vent pipe 5 pushes open the elastic sealing plate 21 and is locked at the insertion port 22.

[0058] In some embodiments, the plug 1 described above includes a locking member 11 and a pressing member 12; wherein,

[0059] The extrusion part 12 is a circular tubular structure. The outer wall of the extrusion part 12 is provided with an extrusion part A121 and an external thread. The extrusion part A121 is located near the insertion end of the extrusion part 12.

[0060] The sealing element 3 is fitted onto the extrusion element 12;

[0061] The locking member 11 has a ring-shaped structure. The inner side wall of the locking member 11 is provided with an internal thread. The locking member 11 is sleeved on the pressing member 12 by the non-insertion end of the pressing member 12, and is connected to the pressing member 12 through the cooperation of the external thread and the internal thread.

[0062] During use, the operator can insert the compression piece 12 into the anchor bolt hole, and then tighten the locking piece 11;

[0063] During the tightening of the locking member 11, the locking member 11 will gradually move towards the direction of the pressing part A121 until the gap between the locking member 11 and the pressing part A121 is equal to the thickness of the sealing member 3. Then, the operator continues to tighten the locking member 11, and the locking member 11 and the pressing part A121 will jointly press the sealing member 3, causing the sealing member 3 to expand outward along the radial direction of the pressing member 12 and press against the wall of the anchor bolt hole, so that it can effectively seal the gap between the pressing member 12 and the wall of the anchor bolt hole, and prevent the pressing member 12 from falling out of the anchor bolt hole and the mortar from leaking out between the pressing member 12 and the anchor bolt hole.

[0064] Preferably, the plug 1 further includes a compression part B122, which is a circular tubular structure. The inner diameter of the compression part B122 matches the outer diameter of the extrusion part 12. The compression part B122 is sleeved on the extrusion part 12 and is located between the locking part 11 and the sealing part 3.

[0065] The extrusion part B122 reduces the turning distance of the locking part 11. By using the extrusion part B122 to quickly extrude the sealing part 3, the top anchor mortar anti-flow device can be quickly installed, making the use of the top anchor mortar anti-flow device more convenient.

[0066] In some embodiments, the extrusion part A121 is an annular structure, and the inner sidewall of the extrusion part A121 is connected and fixed to the sidewall of the extrusion member 12, so as to ensure that the extrusion part A121 and the extrusion part B122 can more fully extrude the sealing member 3, so as to ensure that the sealing member 3 can better seal the gap between the extrusion member 12 and the wall of the anchor bolt hole.

[0067] In some embodiments, the sealing element 3 is a rubber ring. The inner diameter of the sealing element 3 is larger than the inner diameter of the extrusion element 12 and smaller than the outer diameter of the extrusion part A121 and the extrusion part B122, so that the sealing element 3 can be fitted onto the extrusion element 12 and will not come off the extrusion element 12.

[0068] Simultaneously, it ensures that when the extrusion part A121 and the extrusion part B122 approach each other, the sealing member 3 can expand outward along the radial direction of the extrusion part 12 to ensure that it can seal the gap between the extrusion part 12 and the wall of the anchor bolt hole. Preferably, the sealing member 3 is a hollow structure to increase its expansion effect, thereby better achieving the sealing of the gap between the extrusion part 12 and the wall of the anchor bolt hole.

[0069] In some embodiments, the outer walls of the grouting pipe 4 and the vent pipe 5 are provided with anti-slip textures to increase the friction between the outer walls of the grouting pipe 4 and the vent pipe 5, so that when the elastic sealing plate 21 squeezes the grouting pipe 4 and the vent pipe 5, the grouting pipe 4 and the vent pipe 5 are not easily dislodged from the socket 22.

[0070] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for preventing mortar leakage from top anchor bolts, characterized in that: Includes plug (1), sealing plate (2), grouting pipe (4) and vent pipe (5); The plug (1) is a circular tubular structure. The outer diameter of the plug (1) matches the diameter of the anchor hole. The outer wall of the plug (1) is provided with a sealing element (3). The sealing plate (2) is provided with a socket (22), and an elastic sealing plate (21) capable of sealing the socket (22) is provided at the socket (22). The sealing plate (2) is provided at one end of the plug (1), and the socket (22) is connected to the plug (1). The grouting pipe (4) and the vent pipe (5) can push open the elastic sealing plate (21) and be inserted into the socket (22).

2. The top anchor bolt mortar anti-flow device according to claim 1, characterized in that: The plug (1) includes a locking element (11) and a pressing element (12). The extrusion part (12) is a circular tubular structure. The outer wall of the extrusion part (12) is provided with an extrusion part A (121) and an external thread. The extrusion part A (121) is located near the insertion end of the extrusion part (12). The locking member (11) is a ring structure. The inner wall of the locking member (11) is provided with an internal thread. The locking member (11) is sleeved on the extrusion member (12) by the non-insertion end of the extrusion member (12) and connected by the cooperation of the external thread and the internal thread. The sealing element (3) is fitted onto the extrusion element (12), and the sealing element (3) is located between the locking element (11) and the extrusion part A (121).

3. The top anchor bolt mortar anti-flow device according to claim 2, characterized in that: The plug (1) also includes a compression part B (122), which is a circular tubular structure. The compression part B (122) is sleeved on the compression member (12) and is located between the locking member (11) and the sealing member (3).

4. The top anchor bolt mortar anti-flow device according to claim 3, characterized in that: The extrusion part A (121) has an annular structure, and the inner wall of the extrusion part A (121) is connected and fixed to the outer wall of the extrusion part (12).

5. The top anchor bolt mortar anti-flow device according to claim 4, characterized in that: The sealing element (3) is a rubber ring. The inner diameter of the sealing element (3) is larger than the inner diameter of the extrusion element (12) and smaller than the outer diameter of the extrusion part A (121) and the extrusion part B (122).

6. The top anchor bolt mortar anti-flow device according to claim 5, characterized in that: The sealing element (3) is a hollow structure.

7. The top anchor bolt mortar anti-flow device according to claim 1, characterized in that: The sealing plate (2) and the elastic sealing plate (21) are integrally formed components.

8. The top anchor bolt mortar anti-flow device according to claim 1, characterized in that: The outer walls of the grouting pipe (4) and the outer walls of the vent pipe (5) are both provided with anti-slip textures.

9. The device for preventing mortar leakage from the top anchor bolt according to any one of claims 1 to 8, characterized in that: The sealing plate (2) is bolted to the insertion end of the plug (1), and the axis of the plug (1) is perpendicular to the plane where the sealing plate (2) is located; One end of the grouting pipe (4) and the vent pipe (5) extends into the plug (1) from the non-insertion end of the plug (1) and pushes open the elastic sealing plate (21) to lock in the socket (22).

10. The device for preventing mortar leakage from the top anchor bolt according to any one of claims 1 to 8, characterized in that: The sealing plate (2) is bolted to the non-insertion end of the plug (1), and the axis of the plug (1) is perpendicular to the plane in which the sealing plate (2) is located; One end of the grouting pipe (4) and the exhaust pipe (5) pushes open the elastic sealing plate (21) and is locked at the socket (22).

Images