An assembled recyclable anchor rod and a construction method thereof

Abstract

The present application relates to a kind of assembled recyclable anchor rod, comprising: anchor head, a plurality of stretchable reinforcing rib modules are arranged on the outside of anchor head;Sleeve, sleeve is rotatably connected with anchor head, and the end of sleeve and anchor head is provided with sawtooth shape;Hold pole, the end of hold pole is connected with the other end of sleeve, and the other end of hold pole can be held by operator;Grouting duct, grouting duct is sequentially penetrated through the center of hold pole, sleeve and anchor head, and grouting duct can be extended to the front end of anchor head and grouting to anchor hole.The present application is connected by stretchable reinforcing rib module on anchor head, anchor head and anchor hole are inserted and fixed, reliable stress point is formed after grouting, sleeve and anchor head can be rotated from pressure state to tension state, sleeve and hold pole can be rotated and removed after anchor rod is used, it is simple to operate, component is recyclable and reusable, reduce cost, and grouting duct can be extended to the front end of anchor head and grouting to anchor hole, improve work efficiency, and guarantee construction quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engineering support, in particular to an assembled recyclable anchor rod and a construction method thereof. BACKGROUND

[0002] The anchor rod for foundation pit support is a commonly used device in the construction of foundation pit support. The common anchor rod is a solid screw rod, which has a simple structure. However, the grouting pipe needs to be inserted from the side of the anchor rod during grouting. The anchor rod cannot be recycled and reused. For projects with large support engineering quantity, a large number of anchor rods are required, which causes great waste.

[0003] The application of recyclable anchor rods is more and more in practical engineering, and there are many forms. However, most of the internal structures of the anchor rods are complex. Users need to learn on site, and the operation is difficult, which makes it difficult to guarantee the construction quality. SUMMARY

[0004] The present application aims to overcome the defects of the prior art, and provides an assembled recyclable anchor rod and a construction method thereof, which solves the problems of waste of the existing anchor rod which cannot be recycled and the difficulty of operation of the recyclable anchor rod.

[0005] The technical solution to achieve the above-mentioned purpose is: an assembled recyclable anchor rod, comprising: an anchor head, a plurality of stretchable reinforcing rib modules are arranged on the outer side of the anchor head; a sleeve, the sleeve is rotatably connected with the anchor head, and the end of the sleeve connected with the anchor head is provided in a sawtooth shape; a rod holder, the end of the rod holder is connected with the other end of the sleeve, and the other end of the rod holder can be held and operated by a construction worker; a grouting guide pipe, the grouting guide pipe penetrates the center of the rod holder, the sleeve and the anchor head in sequence, and the grouting guide pipe can be extended to the front end of the anchor head to grout the anchor hole.

[0006] In the present application, the anchor head and the anchor hole are connected by the stretchable reinforcing rib modules on the anchor head. After grouting, a reliable stress point is formed. The sleeve and the anchor head can be rotated from the compression state to the tension state. After the anchor rod is used up, the sleeve and the rod holder can be rotated and taken out. The operation is simple, the components can be recycled and reused, the cost can be effectively reduced, and the grouting guide pipe can be arranged through the rod holder, the sleeve and the anchor head and extended to the front end of the anchor head to grout the anchor hole, which improves the work efficiency and guarantees the construction quality.

[0007] Further improvement of the present application is that the anchor head comprises: an inner plug shaft, the inner plug shaft is nested into the end of the sleeve; a plurality of cam columns, the plurality of cam columns are arranged at intervals on the outer wall of the inner plug shaft; and a plurality of cam prisms, the plurality of cam prisms are arranged between adjacent cam columns.

[0008] The further improvement of the assembled recyclable anchor rod is that the end head of the cam prism butting with the sleeve is provided with an inclined surface.

[0009] The further improvement of the assembled recyclable anchor rod is that the sleeve is provided with: a plurality of rectangular grooves, the plurality of rectangular grooves are arranged at intervals at the end head of the sleeve, the rectangular groove is correspondingly clamped with the end head of the cam prism, that is, the compression state, and the anchor head can be pushed; a plurality of arc-shaped tooth grooves, the plurality of arc-shaped tooth grooves are arranged between adjacent rectangular grooves, the arc-shaped tooth groove is clamped with the end head of the cam prism, that is, the tension state, and the reinforcing rib module can be tensioned.

[0010] The further improvement of the assembled recyclable anchor rod is that one side of the cam prism is provided with an inverted groove.

[0011] The further improvement of the assembled recyclable anchor rod is that the inner wall of the arc-shaped tooth groove is provided with a tension inverted groove, and the tension inverted groove is matched with the inverted groove on the cam prism.

[0012] The further improvement of the assembled recyclable anchor rod is that the reinforcing rib module comprises: a guide rail connected to the outer wall of the cam column; a sliding block sliding on the guide rail; a reinforcing rib movably connected to one side of the guide rail close to the front end of the anchor head; and a support rod hingedly connected to the inner side wall of the reinforcing rib and the sliding block at both ends, and the support rod can support the reinforcing rib to stretch outward.

[0013] The further improvement of the assembled recyclable anchor rod is that the outer peripheral wall of the reinforcing rib is provided with a plurality of outer support rods.

[0014] The further improvement of the assembled recyclable anchor rod is that the reinforcing rib module further comprises: a button arranged on the guide rail, and the button can limit the sliding block by being popped up.

[0015] The further improvement of the assembled recyclable anchor rod is characterized in that the following steps are included: the assembled recyclable anchor rod is assembled, and the stretchable reinforcing rib module on the anchor head is closed; the sleeve is switched to the anchor head in a compressed state, and the holding rod is pressed into the anchor hole; the sleeve is rotated to match the cam prism with the rectangular groove on the sleeve, the holding rod is pushed forward, the slider is advanced, and the reinforcing rib is synchronously stretched; the holding rod is pulled back and rotated, and after the tensile inverted groove on the sleeve is connected with the inverted groove on the anchor head, preliminary tensioning can be started, and the tensioning is performed until the reinforcing rib is firmly connected with the soil around the anchor hole; the grouting pipe is inserted into the center of the holding rod, and grouting operation is performed; after the grouting material at the anchor head part reaches the design strength, tensioning can be performed; after the construction is completed, the sleeve and the anchor head are unlocked by slightly pushing the holding rod, and the holding rod and the connected sleeve are taken out in reverse rotation, and the recycling is completed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The front view of the assembled recyclable anchor rod is shown.

[0017] Figure 2 The side view of the anchor head is shown.

[0018] Figure 3 The side view of the sleeve is shown.

[0019] Figure 4 The side view of the reinforcing rib module is shown.

[0020] Figure 5 The flowchart of the construction method of the assembled recyclable anchor rod is shown.

[0021] In the figure: 10, anchor head; 101, inner plug shaft; 102, cam column; 103, cam prism; 104, inverted groove; 11, reinforcing rib module; 111, guide rail; 112, slider; 113, reinforcing rib; 114, support rod; 115, outer support rod; 116, button; 12, sleeve; 121, rectangular groove; 122, arc-shaped tooth groove; 123, tensile inverted groove; 13, holding rod; 14, grouting pipe; 15, anchor clamping device. DETAILED DESCRIPTION

[0022] The application will be further described below in combination with the drawings and specific embodiments.

[0023] Reference Figure 1 , Figure 1 The front view of the assembled recyclable anchor rod is shown. The application provides an assembled recyclable anchor rod, which includes: an anchor head 10, and a plurality of stretchable reinforcing rib modules 11 arranged on the outer side of the anchor head 10.

[0024] The anchor head 10 can be fixed in position by the stretched reinforcing rib 113 module 11 inserted into the inner wall of the anchor hole.

[0025] The sleeve 12 is rotatably connected with the anchor head 10, and the end of the sleeve 12 connected with the anchor head 10 is provided in a zigzag shape.

[0026] The inner diameter of the sleeve 12 corresponds to the diameter of the end of the anchor head 10, and the sleeve 12 can rotate on the anchor head 10.

[0027] The holding rod 13 is connected with the other end of the sleeve 12, and the other end of the holding rod 13 can be held by the construction personnel.

[0028] The length of the holding rod 13 is greater than the depth of the anchor hole, so that the holding rod 13 can still have a certain length outside the anchor hole after being pushed into the anchor hole with the sleeve 12 and the anchor head 10, and the length can be used as the holding end of the construction personnel.

[0029] The grouting pipe 14 is arranged to pass through the center of the holding rod 13, the sleeve 12 and the anchor head 10 in sequence, and the grouting pipe 14 can extend to the front end of the anchor head 10 to grout the anchor hole.

[0030] The holding rod 13, the sleeve 12 and the anchor head 10 are provided with through holes, and the grouting pipe 14 passes through the through holes.

[0031] Referring to Figure 2 , a side view of the anchor head is shown. The present application provides an assembled recyclable anchor rod, and the anchor head 10 comprises: an inner plug shaft 101, which is nested into the end of the sleeve 12.

[0032] The inner plug shaft 101 serves as a sleeve for the sleeve 12, and the sleeve 12 can rotate on the inner plug shaft 101.

[0033] A plurality of cam columns 102 are arranged at intervals around the outer wall of the inner plug shaft 101.

[0034] The cam columns 102 can limit the rotation of the sleeve 12, and serve as the gear positions for the sleeve 12 to push the sliding block 112 forward.

[0035] In the embodiment, the number of cam columns 102 is related to the size of the anchor head 10, and is set according to actual construction requirements, which is not specifically limited here.

[0036] A plurality of cam prisms 103 are arranged between adjacent cam columns 102.

[0037] The height of the cam prism 103 is greater than the height of the cam column 102, and the number of the cam prisms 103 is correspondingly arranged according to the number of the cam columns 102, which is not specifically limited herein.

[0038] Referring to Figure 1 and Figure 2 , Figure 1 a front view of an assembled recyclable anchor rod is shown, Figure 2 a side view of an anchor head is shown. The present application provides an assembled recyclable anchor rod, and the end of the cam prism 103 abutting against the sleeve 12 is provided with an inclined surface.

[0039] The inclined surface facilitates abutment against the sleeve 12, so as to be switched to the corresponding gear without obstacles.

[0040] Referring to Figure 3 , a side view of a sleeve is shown. The present application provides an assembled recyclable anchor rod, and the sleeve 12 is provided with: a plurality of rectangular grooves 121, the plurality of rectangular grooves 121 are arranged at intervals at the end of the sleeve 12, the rectangular groove 121 is correspondingly clamped with the end of the cam prism 103, that is, in a compression state, and the anchor head 10 can be operated by pushing.

[0041] The setting position and number of the rectangular groove 121 correspond to the position and number of the cam prism 103, respectively, and the size of the rectangular groove 121 also corresponds to the size of the cam prism 103.

[0042] A plurality of arc-shaped tooth grooves 122 are arranged between adjacent rectangular grooves 121, the arc-shaped tooth groove 122 is clamped with the end of the cam prism 103, that is, in a tension state, and the reinforcing rib module 11 can be operated by tensioning.

[0043] The arc-shaped surface of the arc-shaped tooth groove 122 is arranged in the same direction as the inclined surface of the cam prism 103, and the arc-shaped tooth groove 122 is used for rotating and adjusting the connection relationship between the holding rod 13 and the anchor head 10.

[0044] In the present embodiment, the rectangular groove 121 and the arc-shaped tooth groove 122 are both arranged at the end port of the sleeve 12 abutting against the anchor head 10.

[0045] Referring to Figure 2 , a side view of an anchor head is shown. The present application provides an assembled recyclable anchor rod, and the cam prism 103 is provided with a reverse groove 104 on one side.

[0046] The reverse groove 104 is arranged on the cam prism 103 on the side opposite to the inclined surface, and is used for connecting with the holding rod 13 to bear tension.

[0047] Referring to Figure 3, shows the side view of the sleeve of the present application. The present application provides a prefabricated recyclable anchor rod, the inner wall of the arc-shaped tooth groove 122 is provided with a tension inverted groove 123, which is matched with the inverted groove 104 on the cam prism 103.

[0048] Wherein, the tension inverted groove 123 is arranged on the side opposite to the arc surface of the arc-shaped tooth groove 122, and the size of the tension inverted groove 123 is matched with the inverted groove 104.

[0049] Referring to Figure 4 , shows the side view of the reinforcing rib module of the present application. The present application provides a prefabricated recyclable anchor rod, the reinforcing rib module 11 comprises: a guide rail 111 connected to the outer wall of the cam column 102.

[0050] Wherein, the guide rail 111 is arranged in parallel with the cam prism 103, and the length of the guide rail 111 is less than the length of the cam column 102.

[0051] In the embodiment, the guide rail 111 is arranged at the middle position of the outer wall of the cam column 102.

[0052] The sliding block 112 is arranged on the guide rail 111.

[0053] Wherein, the number of the sliding block 112 is set according to actual needs, which is not specifically limited here.

[0054] In the embodiment, the sliding direction of the sliding block 112 on each guide rail 111 is arranged uniformly, that is, all the sliding blocks 112 advance or retreat at the same time.

[0055] The reinforcing rib 113 is movably connected to the guide rail 111 on the side close to the front end of the anchor head 10.

[0056] Wherein, the length of the reinforcing rib 113 corresponds to the length of the guide rail 111.

[0057] The support rod 114 is hingedly connected to the inner side wall of the reinforcing rib 113 and the sliding block 112 respectively, and the support rod 114 can support the reinforcing rib 113 to stretch outward, facilitating the movement and insertion of the reinforcing rib 113 into the side wall of the anchor hole for anchoring operation.

[0058] Wherein, the sliding of the sliding block 112 on the guide rail 111 drives the movement of one side of the support rod 114, and further drives the support rod 114 to support the reinforcing rib 113, so that the reinforcing rib 113 rotates outward.

[0059] Referring to Figure 4 , shows the side view of the reinforcing rib module of the present application. The present application provides a prefabricated recyclable anchor rod, the outer peripheral wall of the reinforcing rib 113 is provided with a plurality of outer support rods 115.

[0060] Wherein, the outer supporting rod 115 is arranged perpendicularly to the outer wall of the reinforcing rib 113, further strengthening the fastening effect between the reinforcing rib 113 and the side wall of the anchor hole.

[0061] Referring to Figure 4 , a side view of the reinforcing rib module of the present application is shown. The present application provides a fabricated recyclable anchor rod, and the reinforcing rib module 11 further comprises: a button 116 arranged on the guide rail 111, and the button 116 can limit the slider 112 by being popped up.

[0062] Wherein, the button 116 is selected as a one-side pressing and retracting type, which can retract under the pressure of the slider 112 when the slider 112 advances, and the slider 112 can slide through the button 116, and the button 116 rebounds after the slider 112 passes through, blocking the slider 112 from returning, thereby realizing the one-way passage of the slider 112.

[0063] Referring to Figure 5 , a flowchart of the construction method of the fabricated recyclable anchor rod of the present application is shown. The present application provides a construction method of a fabricated recyclable anchor rod, comprising the following steps:

[0064] Step S210 is performed: a fabricated recyclable anchor rod is assembled, and the extendable reinforcing rib module 11 on the anchor head 10 is closed.

[0065] Wherein, the reinforcing rib module 11 on the anchor head 10 needs to be tested before use to ensure that the extendable function can be used, and the reinforcing rib module 11 needs to be closed before pushing in to prevent affecting the pushing operation of the anchor head 10, and then step S220 is performed.

[0066] Step S220 is performed: the rotating sleeve 12 is switched to a state where the anchor head 10 is under pressure, and the holding rod 13 is pressed into the anchor hole.

[0067] Wherein, the arc-shaped tooth groove 122 of the sleeve 12 is connected with the end of the cam prism 103 before the holding rod 13 enters the hole, and then step S230 is performed.

[0068] Step S230 is performed: the rotating adjustment sleeve 12 is adjusted so that the cam prism 103 matches the rectangular groove 121 on the sleeve 12, the holding rod 13 is pushed forward, the slider 112 is advanced, and the reinforcing rib 113 is synchronously expanded.

[0069] Wherein, the holding rod 13 can continue to be pushed after feeling the rebound of the rebound button 116, and the pressing force is stopped after being pushed tightly, and then step S240 is performed.

[0070] Step S240 is performed: the holding rod 13 is pulled back and rotated, and after the tensioned inverted slot 123 on the sleeve 12 is engaged with the inverted slot 104 on the anchor head 10, the preliminary tensioning can be started, and the tensioning is performed until the reinforcing rib 113 is firmly connected with the soil around the anchor hole.

[0071] In the step S240, after the end of the cam prism 103 is turned into the arc-shaped tooth slot 122 and slightly rotated and pulled, the tensioned inverted slot 123 on the sleeve 12 is engaged with the inverted slot 104 on the anchor head 10, and then step S250 is performed.

[0072] Step S250 is performed: the grouting pipe 14 is inserted into the center of the holding rod 13, and the grouting operation is performed.

[0073] In the step S250, the grouting is only performed on the anchor head 10, which is convenient for disassembling the anchor rod in the later stage and realizing the reuse. For the anchor hole to be grouted, the grouting amount corresponding to each anchor hole is calculated in advance, and the grouting is stopped after the predetermined grouting amount is reached, so as to prevent the excess grouting material from blocking the later anchor rod recovery. Then, step S260 is performed.

[0074] Step S260 is performed: after the grouting material at the anchor head 10 reaches the design strength, the tensioning can be performed.

[0075] In the step S260, the holding rod 13 is anchored outside the anchor hole by using the anchor clamping device 15, which includes a butterfly-shaped pressure relief ring and a ring-shaped tray and the like, so as to prevent the anchor rod from being deviated due to the external force, and then step S270 is performed.

[0076] Step S270 is performed: after the construction is completed, the holding rod 13 is slightly pushed to release the locking between the sleeve 12 and the anchor head 10, and the holding rod 13 and the connected sleeve 12 can be taken out by reversing the rotation, and the recovery is completed.

[0077] In the step S270, the locking is released, that is, the tensioned inverted slot 123 on the sleeve 12 is separated from the inverted slot 104 on the anchor head 10, and after the recovery, the sleeve 12 can be reused, thereby reducing the cost.

[0078] The above embodiments of the present application are described in detail with reference to the accompanying drawings, and those skilled in the art can make various changes to the present application according to the above description. Therefore, some details in the embodiments should not be regarded as limiting the present application, and the scope of protection of the present application is defined by the appended claims.

Claims

1. A prefabricated recyclable anchor bolt, characterized in that, include: An anchor head, wherein multiple extendable reinforcing rib modules are provided around the outer perimeter of the anchor head; The anchor head includes: an internal shaft; Multiple cam posts are spaced apart and arranged around the outer wall of the inner insertion shaft; Multiple cam prisms, wherein the multiple cam prisms are respectively disposed between adjacent cam prisms; A sleeve, which is rotatably connected to the anchor head, and the end of the sleeve that connects to the anchor head is serrated, and the inner insert shaft is nested into the end of the sleeve; A handle, one end of which is connected to the other end of the sleeve, and the other end of the handle can be held and operated by the construction personnel; The grouting conduit passes sequentially through the center of the holding rod, the sleeve, and the anchor head, and extends to the front end of the anchor head to grout the anchor hole.

2. The prefabricated recyclable anchor bolt according to claim 1, characterized in that, The end of the cam prism that connects with the sleeve is set as an inclined surface.

3. The prefabricated recyclable anchor bolt according to claim 2, characterized in that, The sleeve is provided with: Multiple rectangular grooves are spaced apart at the ends of the sleeve. When the rectangular grooves are engaged with the ends of the cam prism, the sleeve is in a pressurized state, which is used to advance the anchor head. Multiple arc-shaped grooves are arranged between adjacent rectangular grooves. When the arc-shaped grooves are engaged with the end of the cam prism, they are in a tensioned state, and the reinforcing rib module is tensioned.

4. A prefabricated recyclable anchor bolt according to claim 3, characterized in that, A chamfer is provided on one side of the cam prism.

5. A prefabricated recyclable anchor bolt according to claim 4, characterized in that, The inner wall of the arc-shaped toothed groove is provided with a tension groove, which matches and corresponds to the groove on the cam prism.

6. A prefabricated recyclable anchor bolt according to claim 1, characterized in that, The reinforcing rib module includes: Guide rail, which is connected to the outer wall of the cam column; A slider, which is slidably mounted on the guide rail; A reinforcing rib, wherein the side of the reinforcing rib near the front end of the anchor head is movably connected to the guide rail; A strut, the two ends of which are hinged to the inner wall of the reinforcing rib and the slider, respectively, and the strut supports the reinforcing rib to extend outward.

7. A prefabricated recyclable anchor bolt according to claim 6, characterized in that, The outer peripheral wall of the reinforcing rib is provided with multiple external support rods.

8. A prefabricated recyclable anchor bolt according to claim 6, characterized in that, The reinforcing rib module also includes: A button is provided on the guide rail, and the button pops up to limit the slider.

9. A construction method for a prefabricated recyclable anchor bolt, employing a prefabricated recyclable anchor bolt as described in any one of claims 1-8, characterized in that, Includes the following steps: A prefabricated recyclable anchor bolt is assembled, and the extendable reinforcing rib module on the anchor head is closed. The rotating sleeve is switched to the anchor head in a compressed state, and the holding rod is used to press it into the anchor hole; Rotate and adjust the sleeve so that the cam prism matches the rectangular groove on the sleeve, push the holding rod forward to make the slider move forward and push the reinforcing rib to unfold synchronously; Pull back the holding rod and rotate it. After the tension groove on the sleeve engages with the groove on the anchor head, the initial tensioning begins. Tensioning continues until the reinforcing rib is firmly connected to the soil around the anchor hole. Insert a grouting conduit into the center of the holding rod and perform grouting. Tensioning is performed after the grout at the anchor head reaches the design strength; After construction is completed, gently push the holding rod to release the sleeve from the anchor head, rotate it in the opposite direction to remove the holding rod and the connected sleeve, and complete the recycling.

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