CN220267747U

CN220267747U - Can prolong self-sealing hole formula anchor notes device

Info

Publication number: CN220267747U
Application number: CN202322062303.3U
Authority: CN
Inventors: 于守东; 于泽昊; 魏红
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2023-12-29
Anticipated expiration: 2033-08-02

Abstract

The utility model discloses an extendable self-sealing hole type anchor injection device which comprises a joint, a slurry outlet pipe and an extension pipe which are sequentially and transversely connected, wherein a slurry injection bent pipe is arranged at the top of the joint, an inner sealing sleeve for adjusting the size of a sealing hole is arranged at one end of the extension pipe far away from the joint, two ends of the slurry outlet pipe respectively penetrate into the joint and the extension pipe, and a composite sealing hole plug is arranged on the peripheral surface of the slurry outlet pipe. Through setting up extension pipe and compound hole stopper, can change self length according to drilling shaping condition, improve the hole sealing effect, reduce the leakage thick liquid extravagant.

Description

Can prolong self-sealing hole formula anchor notes device

Technical Field

The utility model relates to the technical field of grouting for mines, in particular to an anchor grouting device capable of prolonging a self-sealing hole.

Background

At present, a plurality of mines and tunnels are grouted by adopting anchor rods or anchor cables to be matched with an anchor grouting device, so that the solid anchor rods or anchor cables also have grouting function, surrounding rock can be reinforced, the anchor rods or anchor cables can realize full-length anchoring, the construction is convenient, the cost is saved, and the anchor grouting integrated construction is truly realized. However, when the surrounding rock outside the roadway is broken, the drilling and forming are poor, and the surrounding rock cannot be closed by spraying, the original anchor grouting device cannot change the length of the grouting pipe according to the drilling and forming condition due to the self structural limitation, so that the grouting pipe cannot enter the deep part of the drilling hole to seal the hole, more slurry leakage is caused during grouting, grouting reinforcement of the surrounding rock and full-length anchoring of an anchor rod or an anchor rope are affected, and material waste is caused, and the roadway supporting effect is affected.

Disclosure of Invention

The utility model aims to provide an extensible self-sealing hole type anchoring and grouting device, which can change the length of the device according to the drilling forming condition by arranging an extension pipe and a composite hole sealing plug, improve the hole sealing effect and reduce the slurry leakage waste; the problems that in the prior art, the length of a slurry outlet pipe cannot be changed in time on site according to the forming change of a drilling hole, the slurry outlet pipe cannot enter the deep part of the drilling hole to seal and the like are solved.

In order to solve the technical problems, the utility model adopts the following scheme:

the utility model provides a can prolong self-sealing hole formula anchor annotate device, includes joint, play thick liquid pipe and the extension pipe of horizontal connection in proper order the joint top sets up the slip casting return bend, sets up the interior envelope of adjusting the hole sealing size in the one end of the extension pipe that keeps away from the joint, in the both ends of play thick liquid pipe penetrated joint and extension pipe respectively, the outer peripheral face of play thick liquid pipe is equipped with compound hole sealing stopper.

Preferably, the inside of the joint is a three-section step through hole, and the three-section step through hole comprises a first hole, a second hole and a third hole, wherein the inner diameter of the first hole is matched with the outer diameter of an assembled anchor rod or anchor cable, the aperture of the second hole is smaller than the outer diameter of the first port of the grout outlet pipe, and the aperture of the third hole is consistent with the outer diameter of the first port of the grout outlet pipe.

Preferably, both ends of the grouting elbow pipe are provided with external threads, a side hole is arranged at the second hole section of the joint, the side hole is provided with internal threads which are matched with the external threads at one end part of the grouting elbow pipe, and the other end part of the grouting elbow pipe is provided with a protective cap.

Preferably, the grout pipe further comprises a second port, the inner diameter of the first port is larger than the inner diameter of the second port, the inner diameter of the second port is larger than the outer diameter of the anchor rod or the anchor cable, and the outer diameter of the second port is smaller than the diameter of the drilled hole.

Preferably, the extension pipe comprises a third port and a fourth port, the inner diameter of the third port is equal to the outer diameter of the fourth port, the inner diameter of the third port is consistent with the outer diameter of the second port of the pulp outlet pipe, and the second port is inserted into the third port.

Preferably, a composite hole sealing plug is arranged at the joint of the first port and the second port of the slurry outlet pipe, the composite hole sealing plug comprises an extrusion pipe and a conical plug, the conical plug is sleeved outside the extrusion pipe, the extrusion pipe comprises a fifth port and a sixth port, the inner diameter of the fifth port is the outer diameter of the first port, the inner diameter of the sixth port is the outer diameter of the second port, and the inner diameter of the conical plug is consistent with the outer diameter of the second port.

Preferably, the inner envelope comprises a port A and a port B, the inner envelope is of a step structure, the port A is sleeved on a fourth port of the extension pipe or a second port of the slurry outlet pipe, the outer diameter of the port A is larger than that of the port B, and a rib ring for adjusting the size of the hole sealing is arranged on the outer peripheral surface of the port B.

Preferably, a sealing ring is arranged in a first hole of the joint, two ends of the sealing ring are small, the middle of the sealing ring is large in a round table shape, the inner diameter of the sealing ring is matched with the outer diameter of the anchor rod or the anchor cable, and the outer diameters of two small ends of the sealing ring are matched with the inner diameter of the first hole.

Preferably, the conical plug, the inner jacket and the sealing ring are all NBR materials.

The utility model has the beneficial effects that:

1. by arranging the extension pipe behind the grout outlet pipe, the length of the grout outlet pipe can be conveniently and flexibly increased on site according to the forming damage condition of the drilling in the grouting process of the anchor rod or the anchor cable in the drilling, the hole sealing is ensured in the drilling forming benefit, the grout is prevented from overflowing, the material waste is reduced, and the construction quality is prevented from being influenced;

2. through the setting of compound hole stopper, make the anchor annotate the device and realize from the hole sealing, further improve sealed effect and reduce the thick liquid that leaks, improve stock or anchor rope overall length anchoring effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the joint of the present utility model;

FIG. 3 is a schematic diagram of an assembled structure of the grout pipe and the composite hole sealing plug of the present utility model;

FIG. 4 is a schematic view of the structure of the inner envelope of the present utility model;

FIG. 5 is a schematic cross-sectional view of a seal ring according to the present utility model;

FIG. 6 is a schematic view of the structure of an extension tube of the present utility model;

fig. 7 is a schematic view of the assembly of the present utility model with a bolt.

Reference numerals: 1-joint, 101-first hole, 102-second hole, 103-third hole, 104-side hole, 2-grout outlet pipe, 201-first port, 202-second port, 3-extension pipe, 301-third port, 302-fourth port, 4-grout elbow, 401-protective cap, 5-composite closure plug, 501-extrusion pipe, 5011-fifth port, 5012-sixth port, 502-conical plug, 6-inner jacket, 601-port A, 602-port B, 603-rib ring, 7-sealing ring, 8-anchor rod.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

The embodiment of the utility model relates to an extendable self-sealing hole type anchor grouting device, which comprises a joint 1, a slurry outlet pipe 2 and an extension pipe 3 which are sequentially and transversely connected, wherein a grouting bent pipe 4 is arranged at the top of the joint 1, an inner sealing sleeve 6 for adjusting the hole sealing size is arranged at one end of the extension pipe 3 far away from the joint 1, two ends of the slurry outlet pipe 2 respectively penetrate into the joint 1 and the extension pipe 3, and a composite hole sealing plug 5 is arranged on the outer peripheral surface of the slurry outlet pipe 2.

Specifically, as shown in fig. 1, both ends of the grout pipe 2 are respectively inserted into the joint 1 and the extension pipe 3, and at the same time, a composite hole sealing plug 5 is provided on the outer peripheral surface of the grout pipe 2 for performing hole sealing operation on a drilled hole. In the process of installing the anchor injection device on the anchor rod 8 or the anchor cable in the drilling, the length of the grout outlet pipe 2 can be increased conveniently and flexibly on site according to the forming damage condition of the drilling, the hole sealing is ensured at the forming rule of the drilling, the grout is prevented from overflowing during grouting, the material waste is reduced, and the influence on the construction quality is avoided.

Further, the inside of the connector 1 is a three-section step through hole, and the three-section step through hole comprises a first hole 101, a second hole 102 and a third hole 103, wherein the inner diameter of the first hole 101 is matched with the outer diameter of an assembled anchor rod 8 or anchor cable, the aperture of the second hole 102 is smaller than the outer diameter of the first port 201 of the grout outlet pipe 2, and the aperture of the third hole 103 is consistent with the outer diameter of the first port 201 of the grout outlet pipe 2.

Specifically, as shown in fig. 2, three stepped holes with different sizes are formed in the joint 1, wherein the first hole 101 is mainly connected with the anchor rod 8 or the anchor cable in a matching manner, the grouting work is ensured by threaded connection with one end of the grouting elbow pipe 4 through a threaded hole of the side hole 104, the third hole 103 is connected with the grouting pipe 2, and grouting operation is realized through the grouting elbow pipe 4, the second hole 102, the third hole 103 and the grouting pipe 2 in sequence.

Further, both ends of the grouting elbow 4 are provided with external threads, a side hole 104 is arranged at the second hole 102 section of the joint 1, the side hole 104 is provided with internal threads which are matched with external threads at one end of the grouting elbow 4, and a protective cap 401 is arranged at the other end of the grouting elbow 4. Specifically, two ends of the grouting elbow 4 are respectively in threaded connection with the side hole 104 and the protective cap 401 which are arranged on the second hole 102 section, the protective cap 401 can protect external threads when grouting is not performed, and the protective cap 401 is taken out when grouting is performed, so that the grouting elbow is connected with a grouting joint.

Further, the grout pipe 2 further comprises a second port 202, the inner diameter of the first port 201 is larger than the inner diameter of the second port 202, the inner diameter of the second port 202 is larger than the outer diameter of the anchor rod or anchor cable, and the outer diameter of the second port 202 is smaller than the diameter of the drilled hole.

Specifically, as shown in fig. 3, the inner diameter of the first port 201 of the grout outlet pipe 2 is larger than the inner diameter of the second port 202, so that the gap between the inner hole of the first port 201 of the grout outlet pipe 2 and the anchor rod 8 or the anchor cable in the joint 1 is not smaller than the gap between the second port 202 and the anchor rod 8 or the anchor cable, and the grouting is prevented from being influenced by the slurry blockage at the joint 1 during grouting.

Further, the extension pipe 3 comprises a third port 301 and a fourth port 302, the inner diameter of the third port 301 is equal to the outer diameter of the fourth port 302, the inner diameter of the third port 301 is consistent with the outer diameter of the second port 202 of the pulp outlet pipe 2, and the second port 202 is inserted into the third port 301.

Specifically, as shown in fig. 1 and 6, the inner diameter of the third port 301 is equal to the outer diameter of the second port 202, and the second port 202 is inserted into the third port 301 to realize connection between the grouting pipe 2 and the extension pipe 3, and meanwhile, the connection length between the grouting pipe 2 and the extension pipe 3 can be changed according to actual needs, and the number of the extension pipes 3 can be flexibly increased according to field needs to prolong the length of the grouting pipe 2, so that the hole sealing grouting effect of the anchoring grouting device is improved.

Further, a composite sealing plug 5 is disposed at the joint of the first port 201 and the second port 202 of the slurry outlet pipe 2, the composite sealing plug 5 comprises a squeeze pipe 501 and a conical plug 502, the conical plug 502 is sleeved at the outer end of the squeeze pipe 501, the squeeze pipe 501 comprises a fifth port 5011 and a sixth port 5012, the inner diameter of the fifth port 5011 is the outer diameter of the first port 201, the inner diameter of the sixth port 5012 is the outer diameter of the second port 202, the inner diameter of the conical plug 502 is identical to the outer diameter of the second port 202, the two ends of the fifth port 5011 and the sixth port 5012 can be used interchangeably, the sixth port 5012 can be oriented towards the joint 1 side when the sealing depth needs to be increased, and thus the length of the squeeze pipe 501 can be prolonged, and the conical plug 502 can be squeezed deeper into a drilled hole.

Specifically, the outer end of the extruded pipe 501, specifically the outer end of the fifth port 5011 or the outer end of the sixth port 5012 is sleeved with the set composite hole sealing plug 5, so that the anchoring and grouting device can realize self hole sealing at the drilling position, the hole sealing effect of the anchoring and grouting device and the drilling hole is improved, slurry leakage is avoided, and material waste is reduced.

Further, the inner jacket 6 includes a port a601 and a port B602, the inner jacket 6 has a step structure, the port a601 is sleeved on the fourth port 302 of the extension pipe 3 or the second port 202 of the slurry outlet pipe 2, the outer diameter of the port a601 is larger than the outer diameter of the port B602, and a rib ring 603 for adjusting the size of the hole sealing is disposed on the outer circumferential surface of the port B602.

Specifically, as shown in fig. 4, the inner diameter of the port a601 is larger than the inner diameter of the port B602, the anchoring device is placed in the drilled hole, and the size of the hole can be adjusted according to the change of the size of the drilled hole by the rib ring 603 arranged on the outer peripheral surface of the port B602.

Further, a sealing ring 7 is arranged in the first hole 101 of the joint 1, the sealing ring 7 is in a round table shape with two small ends and a large middle, the inner diameter of the sealing ring 7 is matched with the outer diameter of the anchor rod 8 or the anchor cable, and the outer diameters of the two small ends of the sealing ring 7 are matched with the inner diameter of the first hole 101.

Specifically, as shown in fig. 5, the first hole 101 in the joint 1 is provided with a chamfer structure, both small ends of the sealing ring 7 are matched with the first hole to seal, and the sealing ring is mainly used for sealing a gap between the first hole 101 of the joint 1 and the anchor rod 8 or the anchor cable rod body, and is made into a round table shape with small ends and large middle, so that the sealing effect can be prevented from being influenced by field assembly errors.

Further, the conical plug 502, the inner jacket 6 and the sealing ring 7 are all made of NBR. Specifically, NBR is nitrile rubber, has excellent oil resistance, benzene resistance, heat resistance and physical and mechanical properties, and can effectively improve the sealing performance. While the extruded tube 501 is made of a hard material.

Example 2

Embodiment 2 of the present utility model is a construction operation of an anchor, and is mainly as follows:

when the extendable self-sealing hole type anchoring device is matched with an anchor rod to construct a mine tunnel or a tunnel and the like, on-site constructors firstly assemble the extendable self-sealing hole type anchoring device and the anchor rod 8 for later use according to the figure 1, as shown in figure 7, the anchor rod 8 and the extendable self-sealing hole type anchoring device are assembled in a schematic mode, then matched anchor rod drilling holes are drilled by using an anchor rod drilling machine according to the diameter and the length of a rod body of the anchor rod 8, anchoring agents are placed into the drilling holes, the anchoring agents are jacked into the bottoms of the drilling holes by using the rod body of the anchor rod 8, the anchor rod drilling machine is started to drive the anchor rod 8 to rotate to stir the anchoring agents, a grout outlet pipe 2 is plugged into the drilling holes, the composite sealing hole plug 5 is jacked to the drilling holes, the anchor rod body is jacked by using a nut sleeve after the anchoring agents are solidified, the anchor rod body reaches set pulling force, and meanwhile the conical plug 502 is extruded into the drilling holes by using an extrusion pipe 501. When the nut (leftmost end in fig. 7) is tightened, the sealing ring 7 and the outer end of the joint 1 are also pressed, and the first hole 101 section in the joint 1 is sealed. When the outer section of the drill hole is broken and difficult to seal, a plurality of extension pipes 3 are additionally provided with a composite hole sealing plug 5 and an inner sealing sleeve 6 to seal the interior of the drill hole, so that the deep hole can be flexibly and automatically sealed, the hole sealing effect is improved, the leakage phenomenon is reduced, the protective cap of the grouting elbow pipe 4 is firstly removed during grouting, the grouting pipe joint is connected with the grouting elbow pipe 4, a grouting pump is started to perform grouting construction, and when the drill hole is full of grouting, another hole is replaced, and grouting is continued in the mode.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims

1. Can prolong from hole sealing formula anchor annotate device, a serial communication port, including joint (1), play thick liquid pipe (2) and extension pipe (3) that transversely connect in proper order joint (1) top sets up slip casting return bend (4), sets up interior cover (6) of adjusting the hole sealing size in the one end of extension pipe (3) that keep away from joint (1), in penetrating joint (1) and extension pipe (3) respectively at the both ends of play thick liquid pipe (2), the outer peripheral face of play thick liquid pipe (2) is equipped with compound hole sealing stopper (5).

2. The extendable self-sealing hole type anchor injection device according to claim 1, wherein the inside of the joint (1) is a three-section step through hole, the three-section step through hole comprises a first hole (101), a second hole (102) and a third hole (103), the inner diameter of the first hole (101) is matched with the outer diameter of an assembled anchor rod (8) or anchor cable, the aperture of the second hole (102) is smaller than the outer diameter of a first port (201) of the grout outlet pipe (2), and the aperture of the third hole (103) is consistent with the outer diameter of the first port (201) of the grout outlet pipe (2).

3. The extendable self-sealing hole type anchor injection device according to claim 2, wherein the two ends of the grouting elbow pipe (4) are respectively provided with external threads, a side hole (104) is arranged at the second hole (102) section of the joint (1), the side hole (104) is provided with internal threads which are matched with the external threads at one end part of the grouting elbow pipe (4), and a protective cap (401) is arranged at the other end part of the grouting elbow pipe (4).

4. An extendable self-sealing hole type anchoring device according to claim 2, wherein the grout pipe (2) further comprises a second port (202), the first port (201) has an inner diameter larger than the inner diameter of the second port (202), the second port (202) has an inner diameter larger than the outer diameter of the anchor rod (8) or anchor cable, and the second port (202) has an outer diameter smaller than the diameter of the drilled hole.

5. The extendable self-sealing hole type anchoring device according to claim 4, wherein the extension tube (3) comprises a third port (301) and a fourth port (302), the inner diameter of the third port (301) is equal to the outer diameter of the fourth port (302), the inner diameter of the third port (301) is consistent with the outer diameter of the second port (202) of the grout outlet tube (2), and the second port (202) is inserted into the third port (301).

6. The extendable self-sealing hole type anchor injection device according to claim 4, wherein a composite sealing hole plug (5) is arranged at the joint of the first port (201) and the second port (202) of the grout outlet pipe (2), the composite sealing hole plug (5) comprises a squeezing pipe (501) and a conical plug (502), the conical plug (502) is sleeved at the outer end of the squeezing pipe (501), the squeezing pipe (501) comprises a fifth port (5011) and a sixth port (5012), the inner diameter of the fifth port (5011) is the outer diameter of the first port (201), the inner diameter of the sixth port (5012) is the outer diameter of the second port (202), and the inner diameter of the conical plug (502) is consistent with the outer diameter of the second port (202).

7. The extendable self-sealing hole type anchor injection device according to claim 4, wherein the inner sealing sleeve (6) comprises a port A (601) and a port B (602), the inner sealing sleeve (6) is of a step structure, the port A (601) is sleeved on a fourth port (302) of the extension pipe (3) or a second port (202) of the grout outlet pipe (2), the outer diameter of the port A (601) is larger than the outer diameter of the port B (602), and a rib ring (603) for adjusting the size of the sealing hole is arranged on the outer circumferential surface of the port B (602).

8. The extendable self-sealing hole type anchor injection device according to claim 4, wherein a sealing ring (7) is arranged in a first hole (101) of the joint (1), the sealing ring (7) is in a shape of a round table with small two ends and large middle, the inner diameter of the sealing ring (7) is matched with the outer diameter of an anchor rod (8) or an anchor rope, and the outer diameters of two small head ends of the sealing ring (7) are matched with the inner diameter of the first hole (101).

9. The extendable self-sealing hole type anchor as claimed in claim 8, wherein the tapered plug (502), the inner jacket (6) and the sealing ring (7) are all made of NBR.