Low-prestress resin anchor rod

Abstract

The utility model provides a low-prestress resin anchor rod, relates to the resin anchor rod technology, and particularly discloses a connector, a mounting hole is formed in the connector, an anchor rod body is mounted in the mounting hole, an anchoring section rod body is mounted on one side, away from the anchor rod body, of the connector, and an anchor head is mounted on one side, away from the connector, of the anchoring section rod body. A mounting cavity communicated with the mounting hole is formed in the anchoring section rod body, a resin injection mechanism is arranged in the mounting cavity, and an anchor rod fixing structure is mounted on the anchor rod body; the resin injection structure pre-stores resin mortar in the mounting cavity, the anchor rod can be fixed in the anchor rod hole through the resin mortar after the resin injection structure is crushed in the mounting cavity when the anchor rod needs to be used, and the situation that the installation of the anchor rod is affected due to the fact that the resin mortar is cured in advance is avoided. And the resin injection structure is mounted in the anchoring section rod body, so that resin can be guided into the hole bottom of the anchor rod hole, and the combination effect of the anchor rod and the anchor rod hole is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to resin anchor rod technical field, specifically, relate to a low prestressed resin anchor rod. BACKGROUND

[0002] At present, the resin anchoring agent used in the low prestressed resin anchor rod of the tunnel adopts resin mortar, which is first filled into the anchor rod hole, and then the anchor rod is rotated by the anchor rod installation equipment to break the mortar tape and mix the mortar. However, the above-mentioned technology has the problem that the adhesive is often solidified before the anchor rod is inserted due to the injection of the adhesive into the anchor rod hole in advance, which causes the anchor rod to be unable to be installed.

[0003] In addition, the anchor rod hole is prone to collapse during construction, which causes the mortar to be unable to penetrate to the bottom of the hole, the mortar mixing to be greatly affected by the equipment, and the mortar mixing to be insufficient, which seriously affects the anchoring strength. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a low prestressed resin anchor rod, which can solve the problems raised in the background art.

[0005] The technical scheme of the utility model is implemented as follows:

[0006] The utility model provides a low prestressed resin anchor rod, which comprises a connector, an installation hole is formed in the connector, an anchor rod body is installed in the installation hole, an anchoring section body is installed on one side of the connector away from the anchor rod body, an anchor head is installed on the side of the anchoring section body away from the connector, an installation chamber is formed in the anchoring section body and communicates with the installation hole, a resin injection mechanism is arranged in the installation chamber, and an anchor rod fixing structure is installed on the anchor rod body.

[0007] In some technical schemes of the utility model, the resin injection mechanism comprises a storage device installed in the installation chamber, the anchor rod body is threadedly connected with the installation hole, a through hole is formed in the anchor head and communicates with the installation chamber, a plurality of first inlets and outlets are formed in the outer side wall of the anchor head and communicate with the through hole, a crushing structure for crushing the storage device is arranged in the installation chamber, and an external thread is formed in the outer side wall of the anchoring section body.

[0008] In some technical schemes of the utility model, the crushing structure comprises a plurality of blades, the plurality of blades are installed on the side wall of the anchor head, and the tips of the blades all face the storage device.

[0009] In some technical schemes of the utility model, an installation ring is installed in the installation chamber, and the storage device is installed in the installation ring.

[0010] In some technical schemes of the utility model, the piston is slidably arranged in the installation chamber, the limiting spring connected with the piston is arranged in the installation chamber, and the anchor rod body is partially arranged in the limiting spring and abuts against the piston.

[0011] In some technical schemes of the utility model, the grouting channel is arranged in the anchor rod body, the third inlet and outlet communicated with the grouting channel are arranged on the side wall of the anchor rod body, and the second inlet and outlet communicated with the installation chamber are arranged on the side wall of the anchor segment body.

[0012] In some technical schemes of the utility model, the anchor rod fixing structure comprises the gasket sleeved on the anchor rod body, the nut threadedly connected with the anchor segment body, and the nut abutting against the gasket.

[0013] In some technical schemes of the utility model, the spherical gasket is sleeved on the anchor rod body and is arranged between the gasket and the nut.

[0014] Compared with the prior art, the utility model has at least the following advantages or beneficial effects: the resin injection structure pre-stores the resin mortar in the installation chamber, the anchor rod can be fixed in the anchor rod hole through the resin mortar after the resin injection structure is broken in the installation chamber when the resin injection structure is used, the installation of the anchor rod is not affected by the advance solidification of the resin mortar, the resin is introduced into the bottom of the anchor rod hole by installing the resin injection structure in the anchor segment body, the combination effect of the anchor rod and the anchor rod hole is improved, and the anchor rod fixing structure is installed on the anchor rod body.

[0015] The outer thread is arranged on the outer side wall of the anchor segment body, the operator can rotate the combination of the anchor rod body and the anchor segment body to agitate the resin mortar, the gap between the anchor segment body and the rock mass is filled, and the rock mass and the anchor segment body form the anchoring body. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is an installation structure schematic view of the storage of the utility model.

[0018] Figure 3 It is a sectional structure schematic view of the utility model.

[0019] The figure sign: 1, connector, 2, anchor segment body, 3, threaded structure, 4, anchor head, 5, first inlet and outlet, 6, anchor rod body, 7, nut, 8, spherical gasket, 9, gasket, 10, limiting spring, 11, piston, 12, storage, 13, mounting ring, 14, blade, 15, second inlet and outlet, 16, third inlet and outlet, 17, grouting channel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model. Specific embodiments of the drawings

[0022] Embodiments

[0023] The utility model provides a kind of low prestressed resin anchor rod, as shown in Figure 1 、 Figure 2 It includes connector 1, connector 1 is cylindrical structure, installation hole is set on connector 1, the cross section of installation hole is circular, it penetrates the upper and lower sides of connector 1;The anchor rod body 6 matched with installation hole is installed in installation hole, and the side, away from anchor rod body 6, of connector 1 is installed with anchoring section rod body 2, and anchoring section rod body 2 is hollow tubular structure, and anchoring section rod body 2 is installed with anchor head 4 by threaded connection on the side, away from connector 1, of anchoring section rod body 2, and installation cavity is set in anchoring section rod body 2 and communicated with installation hole, and resin injection mechanism is arranged in installation cavity, and resin injection structure preexists resin mortar in installation cavity, and when using, resin injection mechanism is broken in installation cavity, and then anchor rod can be fixed in anchor rod hole by resin mortar, and it also avoids that resin mortar is cured in advance and affects the installation of anchor rod, and resin injection structure is installed in anchoring section rod body 2, which can guide resin into the bottom of anchor rod hole, improve the combination effect of anchor rod and anchor rod hole, and anchor rod body 6 is installed with anchor rod fixing structure.

[0024] In some technical schemes of the utility model, the resin injection mechanism comprises a storage 12 installed in the installation chamber, the storage 12 is a capsule structure, the material thereof is rubber, the resin mortar is filled in the capsule structure to realize pre-storage, the outer wall of the storage 12 is abutted with the inner wall of the installation chamber, the anchor rod body 6 is screw-connected with the installation hole, the anchor head 4 is provided with a through opening communicated with the installation chamber, a plurality of first inlets and outlets 5 are formed in the outer side wall of the anchor head 4, the number of the first inlets and outlets 5 is at least two, the first inlets and outlets 5 are all communicated with the through opening, and the installation chamber is provided with a crushing structure for crushing the storage 12. When the operator rotates the anchor rod body 6 by rotating the wrench to gradually enter the installation chamber from the installation hole, the anchor rod body 6 will push the storage 12 to gradually approach the crushing structure, after the crushing structure pierces the storage 12, the resin mortar flows out of the capsule structure, is discharged from the anchor head 4 through the first inlets and outlets 5, and is introduced into the hole bottom of the anchor rod hole, thereby improving the combination effect of the anchor rod and the anchor rod hole. The outer side wall of the anchoring section rod body 2 is provided with external threads, so that the operator can rotate the combination of the anchor rod body 6 and the anchoring section rod body 2 to agitate the resin mortar, fill the gap between the anchoring section rod body 2 and the rock mass, and form an anchoring body with the rock mass and the anchoring section rod body 2.

[0025] Preferably, when the hole collapses, the combination of the anchoring section rod body 2 and the anchor rod body 6 can easily push away the broken stones or push the broken stones into the hole bottom under the pushing of the prestressed wrench, so that the resin mortar stored in the anchoring section rod body 2 can be accurately poured to the bottom.

[0026] In some technical schemes of the utility model, the crushing structure comprises a plurality of blades 14, the number of the blades 14 is six, a larger opening is formed in the storage 12 as much as possible, the blades 14 are in the shape of sharp cone, the large-diameter ends of the plurality of blades 14 are all installed on the side wall of the anchor head 4 in a welding manner, and the sharp ends of the blades 14 all face the storage 12; after the blades 14 pierce the storage 12, the resin mortar can flow out of the capsule structure as soon as possible.

[0027] In some technical schemes of the utility model, the installation chamber is provided with an installation ring 13, the installation ring 13 is a rubber ring, the storage 12 is installed in the installation ring 13, the inner wall of the installation ring 13 is fixedly integrated with the outer side wall of the storage 12, plays a sealing role between the storage 12 and the installation chamber, avoids the resin mortar from flowing upwards after being discharged from the storage 12, and avoids the problem that the structure cannot normally operate after being blocked. The installation ring 13 also prevents the storage 12 from falling freely and contacting the blades 14, and prevents the problem that the resin mortar leaks from the storage 12.

[0028] In some technical schemes of the utility model, the installation chamber is internally slidably provided with a piston 11 matched therewith, the piston 11 is a cylindrical hard rubber block, the installation chamber is internally provided with a limiting spring 10 connected with the piston 11, the limiting spring 10 can prevent the piston 11 from freely falling and extruding the storage 12, thereby preventing the storage 12 from being broken, ensuring that the resin mortar does not leak from the storage 12 when the above structure is not installed, and improving the storage time and safety of the structure; the anchor rod body 6 is partially arranged in the limiting spring 10 and abuts against the piston 11. The piston 11 facilitates the user to increase the contact area between the anchor rod body 6 and the storage 12 after the anchor rod body 6 is screwed into the installation chamber, thereby extruding the resin mortar stored in the storage 12 as much as possible, improving the volume of the resin mortar between the anchoring section rod body 2 and the rock mass, and forming an anchoring body between the rock mass and the anchoring section rod body 2.

[0029] In some technical schemes of the utility model, the anchor rod body 6 is internally provided with a grouting channel 17, the grouting channel 17 can inject cement mortar into the anchor rod hole when grouting the anchor rod hole in the later stage, improve the flow of the cement mortar, speed up the grouting process, and facilitate the grouting operation of the operator; the sidewall of the anchor rod body 6 is provided with a third inlet and outlet 16 in communication with the grouting channel 17; the sidewall of the anchoring section rod body 2 is provided with a second inlet and outlet 15 in communication with the installation chamber. The cement mortar flow channel formed by the above-mentioned structure, the grouting channel 17, the third inlet and outlet 16 and the second inlet and outlet 15 can make the cement mortar enter the gap between the anchoring section rod body 2 and the anchor rod body 6 combination at a faster speed from the anchor rod body 6, and improve the fixing effect of the anchoring section rod body 2 and the anchor rod body 6 in the anchor rod hole.

[0030] In some technical schemes of the utility model, the anchor rod fixing structure comprises a gasket 9 sleeved on the anchor rod body 6, the anchoring section rod body 2 is provided with a nut 7 threadedly connected therewith, and the nut 7 abuts against the gasket 9.

[0031] In some technical schemes of the utility model, the anchor rod body 6 is sleeved with a spherical gasket 8, and the spherical gasket 8 is installed between the gasket 9 and the nut 7. The anchoring section rod body 2 and the anchor rod body 6 combination can be stably fixed in the anchor rod hole, and the later construction operation is facilitated.

[0032] The above is only the preferred embodiment of the utility model, and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A low prestress resin anchor rod, characterized in that, The utility model provides an anchor rod connector, including connector (1), install hole is seted up on the connector (1), anchor rod body (6) is installed in the install hole, anchor segment body (2) is installed on the side of the connector (1) away from the anchor rod body (6), anchor head (4) is installed on the side of the anchor segment body (2) away from the connector (1), install chamber is seted up in the anchor segment body (2) and is communicated with the install hole, resin injection mechanism is equipped in the install chamber, anchor rod fixing structure is installed on the anchor rod body (6).

2. A low prestress resin anchor according to claim 1, characterized in that The resin injection mechanism includes a storage (12) installed in the install chamber, the anchor rod body (6) is threadedly connected with the install hole, the anchor head (4) is provided with a through hole communicated with the install chamber, a plurality of first inlets and outlets (5) are formed on the outer side wall of the anchor head (4) and communicated with the through hole, the install chamber is provided with a crushing structure for crushing the storage (12), and the anchor segment body (2) is provided with an external thread on the outer side wall.

3. A low prestress resin anchor according to claim 2, characterized in that The crushing structure includes a plurality of blades (14) installed on the side wall of the anchor head (4), and the tips of the blades (14) are directed towards the storage (12).

4. A low prestress resin anchor according to claim 2, characterized in that The install chamber is provided with an installation ring (13), and the storage (12) is installed in the installation ring (13).

5. A low prestress resin anchor according to claim 2, wherein The install chamber is slidably provided with a piston (11), the install chamber is provided with a limiting spring (10) connected with the piston (11), and the anchor rod body (6) is partially arranged in the limiting spring (10) and abuts against the piston (11).

6. A low prestress resin anchor according to claim 2, characterized in that The anchor rod body (6) is provided with a grouting channel (17), and the side wall of the anchor rod body (6) is provided with a third inlet and outlet (16) communicated with the grouting channel (17); the side wall of the anchor segment body (2) is provided with a second inlet and outlet (15) communicated with the install chamber.

7. A low prestress resin anchor according to any one of claims 1-6, characterized in that, The anchor rod fixing structure includes a gasket (9) sleeved on the anchor rod body (6), the anchor segment body (2) is provided with a nut (7) threadedly connected therewith, and the nut (7) abuts against the gasket (9).

8. A low prestress resin anchor according to claim 7, characterized in that The anchor rod body (6) is sleeved with a spherical gasket (8), and the spherical gasket (8) is installed between the gasket (9) and the nut (7).

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