An FRP anchor rod anchoring system

Abstract

The present application relates to the field of composite material anchoring, and discloses a rod body anchoring system, which comprises a limiting device, the limiting device comprises an elastic member and a movable member, the movable member is arranged in the inside of a connecting pipe, the two ends of the elastic member are connected with the movable member and the connecting pipe respectively, and the elastic member is used for driving the movable member to move in the direction close to the rod body, when the rod body rotates in the same direction as the spiral direction of the second thread, the first guide inclined surface can be slidably matched with the corresponding movable member, and each first guide inclined surface can push the corresponding movable member to move in the direction close to the elastic member, when the rod body rotates in the direction opposite to the spiral direction of the second thread, the first limiting surface can abut against the corresponding movable member to limit the rotation of the rod body. Compared with the adhesive anchoring mode, the rod body anchoring system provided by the present application needs shorter time to complete the whole anchoring process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of composite material anchoring, in particular to a FRP anchor rod anchoring system. BACKGROUND

[0002] Fiber reinforced polymer / plastic (FRP) rod bodies are often anchored by adhesive anchoring systems, which are generally composed of a metal sleeve and an epoxy adhesive. The anchoring mechanism mainly relies on the adhesive force between the adhesive, the sleeve and the FRP rod body. The adhesive anchoring system has the advantages of simple internal structure and fatigue resistance, but also has the following defects:

[0003] The glue needs to be solidified and maintained, and needs to be poured multiple times at intervals, which results in a long time period required for anchoring using the adhesive anchoring system.

[0004] Therefore, how to overcome the above defects has become a problem to be solved by the present technical personnel. SUMMARY

[0005] To solve the above technical problems, the present application provides a FRP anchor rod anchoring system to shorten the time required for anchoring.

[0006] To achieve the above purpose, the present application provides the following solutions:

[0007] The present application provides a FRP anchor rod anchoring system, comprising:

[0008] A connecting pipe is internally provided with a first thread;

[0009] A rod body, one end of the rod body is used to extend into the interior of the connecting pipe and is provided with a second thread for threaded connection with the first thread, and the outer wall of the end of the rod body used to extend into the interior of the connecting pipe is circumferentially provided with at least two positioning blocks, each of the positioning blocks has a first guide inclined surface and a first limiting surface;

[0010] At least two limiting devices arranged along the circumference of the connecting pipe, the limiting device comprising an elastic member and a movable member, the movable member being arranged in the interior of the connecting pipe, and the two ends of the elastic member being connected with the movable member and the connecting pipe respectively and used to drive the movable member to move towards the direction close to the rod body;

[0011] When the rod body rotates in the same direction as the helical direction of the second thread, the first guide slope can be in sliding fit with the movable piece corresponding thereto, and each first guide slope can push the movable piece corresponding thereto to move towards the elastic piece; when the rod body rotates in the opposite direction of the helical direction of the second thread, the first limiting surface can abut against the movable piece corresponding thereto to limit the rotation of the rod body.

[0012] Optionally, the inner wall of the connecting pipe is circumferentially provided with at least two grooves corresponding to the limiting devices, and each groove is used for accommodating the limiting device corresponding thereto.

[0013] Optionally, the limiting device further comprises a fixed block and a sliding piece, the fixed block and the sliding piece are arranged inside the connecting pipe, the fixed block is connected with the connecting pipe, the fixed block is provided with a guide groove, the sliding piece is arranged in the guide groove in a sliding manner, the sliding piece is connected with the movable piece, and the elastic piece is arranged in the guide groove, two ends of the elastic piece are connected with the fixed block and the sliding piece respectively, and the elastic piece is used for driving the sliding piece to move towards the rod body.

[0014] Optionally, the limiting device comprises at least two elastic pieces, and all the elastic pieces of the same limiting device are arranged in sequence along the axis direction of the connecting pipe, and the movable piece of the limiting device is connected with each elastic piece of the limiting device.

[0015] Optionally, the movable piece is a movable block, the movable block comprises a second guide slope and a second limiting surface, the second guide slope is parallel to the first guide slope, the second limiting surface is parallel to the first limiting surface, when the rod body rotates in the same direction as the helical direction of the second thread, the first guide slope and the second guide slope can correspond to each other and abut against each other, and when the rod body rotates in the opposite direction of the helical direction of the second thread, the first limiting surface and the second limiting surface can correspond to each other and abut against each other.

[0016] Optionally, the FRP anchor rod anchoring system further comprises a connecting column, the connecting column is arranged inside the connecting pipe, the axis of the connecting column coincides with the axis of the connecting pipe, one end of the rod body arranged to extend into the connecting pipe is provided with an opening, the first thread is an external thread, the first thread is arranged on the outer side wall of the connecting column, the second thread is an internal thread, the second thread is arranged on the inner wall of the opening, one end of the connecting column extends into the opening and is threadedly connected with the first thread through the second thread.

[0017] Optionally, the number of the limiting devices is equal to the number of the positioning blocks.

[0018] Optionally, all the positioning blocks are arranged uniformly in the circumferential direction of the rod body, and all the limiting devices are arranged uniformly in the circumferential direction of the connecting pipe.

[0019] Optionally, the elastic member is a spring.

[0020] The present application has the following technical effects relative to the prior art:

[0021] When the FRP anchor rod anchoring system is used for anchoring, after the connecting pipe and the anchor rod are placed at the position to be anchored, only the rod body needs to be rotated in the same direction as the spiral direction of the second thread to realize the connection of the connecting pipe and the anchor rod, and then the whole anchoring process is completed. Compared with the adhesive anchoring mode, the FRP anchor rod anchoring system provided by the present application can complete the whole anchoring process in a shorter time, thereby effectively saving time. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0023] Figure 1 Fig. 1 is a structural schematic view of the FRP anchor rod anchoring system provided in the embodiments of the present application;

[0024] Figure 2 Fig. 2 is a sectional view of the FRP anchor rod anchoring system provided in the embodiments of the present application;

[0025] Figure 3 Fig. 3 is a partial structural schematic view of the FRP anchor rod anchoring system provided in the embodiments of the present application;

[0026] Figure 4 Fig. 4 is a schematic view of the setting mode of the fixing member and the sliding member of the FRP anchor rod anchoring system provided in the embodiments of the present application.

[0027] Figures 1-4 Fig. 1 is a structural schematic view of the FRP anchor rod anchoring system provided in the embodiments of the present application; DETAILED DESCRIPTION

[0028] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should belong to the protection scope of the present application.

[0029] The present application aims to provide an FRP anchor rod anchoring system with short time required for anchoring.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] Reference Figures 1-4 The FRP anchor rod anchoring system provided in the embodiments of the present application comprises a connecting pipe 1, a rod body 2 and at least two limiting devices arranged along the circumference of the connecting pipe 1.

[0032] Specifically, the connecting pipe 1 is internally provided with a first thread.

[0033] One end of the rod body 2 is used to extend into the interior of the connecting pipe 1 and is provided with a second thread used for threaded connection with the first thread, and the outer wall of the end of the rod body 2 used to extend into the interior of the connecting pipe 1 is circumferentially provided with at least two positioning blocks 3, each of which has a first guide inclined surface 301 and a first limiting surface 302, the rod body 2 includes but is not limited to an FRP rod body, and the specific number of the positioning blocks 3 is determined according to actual needs.

[0034] The limiting device comprises an elastic member 4 and a movable member 5, the movable member 5 is arranged in the interior of the connecting pipe 1, the two ends of the elastic member 4 are respectively connected with the movable member 5 and the connecting pipe 1, and the elastic member 4 is used to drive the movable member 5 to move towards the rod body 2, and the specific number of the limiting device is also determined according to actual needs. When the movable member 5 is in contact with the rod body 2 or the positioning block 3, the elastic member 4 is in a compressed state, and under the elastic force of the elastic member 4, the movable block clamps the rod body 2 to realize the positioning of the rod body 2, and the elastic member 4 includes but is not limited to a spring.

[0035] When the rod body 2 rotates in the same direction as the spiral direction of the second thread, the first guide inclined surface 301 can be slidably matched with the corresponding movable member 5, and each first guide inclined surface 301 can push the corresponding movable member 5 to move towards the elastic member 4, so that the rod body 2 can rotate normally. When the rod body 2 rotates in the opposite direction of the spiral direction of the second thread, the first limiting surface 302 can be in abutment with the corresponding movable member 5 to limit the rotation of the rod body 2.

[0036] When the FRP anchor rod anchoring system is used for anchoring, the connecting pipe 1 and the anchor rod are placed at the anchoring position, and then the rod body 2 is only needed to be rotated in the same direction as the spiral direction of the second thread to realize the connection of the connecting pipe 1 and the anchor rod, and then the whole anchoring process is completed. Compared with the connection of the connecting pipe 1 and the anchor rod by using the adhesive anchoring mode, the FRP anchor rod anchoring system provided by the application can complete the whole anchoring process in a shorter time, and can effectively save time. In addition, the FRP anchor rod anchoring system provided by the application realizes the connection between the rod body 2 and the connecting pipe 1 by using the thread connection and the movable piece 5, so that the connection between the rod body 2 and the connecting pipe 1 is firm and not easy to separate.

[0037] In the specific use process of the FRP anchor rod anchoring system provided by the application, the positioning block 3 and the movable piece 5 are in contact and relative rotation during the thread connection of the connecting pipe 1 and the rod body 2. By using the elasticity of the elastic piece 4, the movable block moves towards the direction close to the elastic piece 4 during the contact of the positioning block 3 and the movable piece 5, the elastic piece 4 is further compressed, until the thread connection of the connecting pipe 1 and the rod body 2 is completed. At this time, the movable piece 5 is just separated from the positioning block 3, the first limiting surface 302 is in abutment with the movable piece 5, and the rod body 2 is limited after anchoring. During the process that the rod body 2 is subjected to tension, the positioning block 3 and the movable piece 5 cooperate to limit, and the thread connection of the connecting pipe 1 and the rod body 2 can avoid the separation of the rod body 2 and the connecting pipe 1. The whole anchoring area subjected to the anchoring force is uniformly distributed by using the FRP anchor rod anchoring system, no displacement is generated, and the anchoring efficiency is high.

[0038] As an optional embodiment, the number of limiting devices and positioning blocks 3 is equal, and all the positioning blocks 3 are uniformly arranged in the circumferential direction of the rod body 2, and all the limiting devices are uniformly arranged in the circumferential direction of the connecting pipe 1. More specifically, Figure 1 The number of limiting devices and positioning blocks 3 is 8.

[0039] In another embodiment of the application, as shown in Figure 3 The inner wall of the connecting pipe 1 is provided with at least two grooves 101 in the circumferential direction, the grooves 101 correspond to the limiting devices one by one, each groove 101 is used for accommodating the corresponding limiting device, and an arc-shaped block 102 is formed between any two adjacent grooves 101. In other embodiments, specifically, the elastic piece 4 is arranged in the groove 101.

[0040] In another embodiment of the application, as shown in Figure 4As shown, the limiting device further comprises a fixed block 6 and a sliding piece 7, both of which are arranged inside the connecting pipe 1, the fixed block 6 is connected with the connecting pipe 1, the fixed block 6 is provided with a guide groove, the sliding piece 7 is slidably arranged in the guide groove, the sliding piece 7 is connected with the movable piece 5, the elastic piece 4 is arranged in the guide groove, both ends of the elastic piece 4 are connected with the fixed block 6 and the sliding piece 7 respectively, and the elastic piece 4 is used to drive the sliding piece 7 to move towards the rod body 2. In this way, the guide groove provides guidance for the movement of the movable piece 5, and the movable piece 5 can move more stably.

[0041] Further, the fixed block 6 is arranged in the groove 101.

[0042] In another embodiment of the present application, the limiting device comprises at least two elastic pieces 4, all the elastic pieces 4 of the same limiting device are arranged in sequence along the axis direction of the connecting pipe 1, the movable piece 5 of the limiting device is connected with each elastic piece 4 of the limiting device, and the specific number of the elastic pieces 4 is determined according to actual needs.

[0043] It can be understood that, on the basis of the elastic piece 4 being at least two, the fixed block 6 and the sliding piece 7 are arranged, the number of the fixed block 6 and the sliding piece 7 is also two, and the fixed block 6, the sliding piece 7 and the elastic piece 4 correspond one by one, each elastic piece 4 is arranged in the guide groove of the corresponding fixed block 6, and each elastic piece 4 is connected with the corresponding fixed block 6 and the movable piece 5.

[0044] In another embodiment of the present application, as shown in the figure, Figures 1-3 The movable piece 5 is an active block, the active block comprises a second guide inclined surface 501 and a second limiting surface 502, the second guide inclined surface 501 is parallel to the first guide inclined surface 301, the second limiting surface 502 is parallel to the first limiting surface 302, when the rod body 2 rotates in the same direction as the spiral direction of the second thread, the first guide inclined surface 301 and the second guide inclined surface 501 can correspond one by one and abut, and with the rotation of the rod body 2, the first guide inclined surface 301 and the second guide inclined surface 501 will slide with each other. When the rod body 2 rotates in the opposite direction of the spiral direction of the second thread, the first limiting surface 302 and the second limiting surface 502 can correspond one by one and abut, when the first limiting surface 302 and the second limiting surface 502 abut, continue to rotate the rod body 2, the second limiting surface 502 will limit the movement of the first limiting surface 302, and further limit the rotation of the rod body 2.

[0045] Further, as an optional implementation, the cross section of the active block is a right triangle, the hypotenuse of the right triangle corresponds to the second guide inclined surface 501, one of the right angles corresponds to the second limiting surface 502, and the other right angle corresponds to the sliding piece 7.

[0046] In another embodiment of the present application, the FRP anchor rod anchoring system further comprises a connecting column 8, the connecting column 8 is arranged inside the connecting pipe 1, the axis of the connecting column 8 coincides with the axis of the connecting pipe 1, the rod body 2 is provided with an opening 201 at one end of the rod body 2, the first thread is an external thread, the first thread is arranged on the outer wall of the connecting column 8, the second thread is an internal thread, the second thread is arranged on the inner wall of the opening 201, one end of the connecting column 8 is arranged in the opening 201, and the connecting column 8 is threadedly connected with the first thread through the second thread, the connecting column 8 is threadedly connected with the rod body 2, and then the connecting pipe 1 is threadedly connected with the rod body 2.

[0047] As shown in Figure 1 As an optional embodiment, the opening 201 is arranged along the axis direction of the rod body 2 and penetrates through both ends of the rod body 2.

[0048] The principles and embodiments of the present application are described in the specification by using specific examples, and the above description of the embodiments is only used to help understand the method of the present application and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific embodiments and application scope can be changed. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An FRP anchor rod anchoring system, characterized by, The utility model provides a kind of connecting pipe and rod body, the utility model discloses the following technical scheme: Connecting pipe, internally provided with first thread; Rod body, one end of the rod body is used to extend into the connecting pipe inside, and is provided with second thread for being threadedly connected with the first thread, and the outer wall of the one end of the rod body for extending into the connecting pipe is circumferentially provided with at least two positioning blocks, each of the positioning blocks has first guide slope and first limiting surface; At least two limiting devices arranged along the circumference of the connecting pipe, the limiting device includes elastic member and movable member, the movable member is arranged inside the connecting pipe, and the two ends of the elastic member are respectively connected with the movable member and the connecting pipe, and the elastic member is used to drive the movable member to move towards the rod body; When the rod body rotates around the same direction as the spiral direction of the second thread, the first guide slope can be slidably fitted with the corresponding movable member, and each first guide slope can push the corresponding movable member to move towards the elastic member;When the rod body rotates around the opposite direction of the spiral direction of the second thread, the first limiting surface can abut against the corresponding movable member to limit the rotation of the rod body;The inner wall of the connecting pipe is circumferentially provided with at least two grooves, and the grooves correspond to the limiting devices one by one, and each groove is used to accommodate the corresponding limiting device;The limiting device further includes fixed block and sliding member, the fixed block and the sliding member are arranged inside the connecting pipe, the fixed block is connected with the connecting pipe, the fixed block is provided with guide groove, the sliding member is slidably arranged in the guide groove, the sliding member is connected with the movable member, the elastic member is arranged in the guide groove, the two ends of the elastic member are respectively connected with the fixed block and the sliding member, and the elastic member is used to drive the sliding member to move towards the rod body;The movable member is movable block, the movable block includes second guide slope and second limiting surface, the second guide slope is parallel to the first guide slope, the second limiting surface is parallel to the first limiting surface, when the rod body rotates around the same direction as the spiral direction of the second thread, the first guide slope and the second guide slope can correspond to each other and abut against each other, when the rod body rotates around the opposite direction of the spiral direction of the second thread, the first limiting surface and the second limiting surface can correspond to each other and abut against each other;Further including connecting column, the connecting column is arranged inside the connecting pipe, and the axis of the connecting column coincides with the axis of the connecting pipe, one end of the rod body for extending into the connecting pipe is provided with opening, the first thread is external thread, the first thread is arranged on the outer side wall of the connecting column, the second thread is internal thread, the second thread is arranged on the inner wall of the opening, one end of the connecting column extends into the opening and is threadedly connected with the first thread through the second thread;The elastic member is spring.

2. The FRP anchor rod anchoring system according to claim 1, wherein, The limiting device comprises at least two elastic members, all the elastic members of the same limiting device are arranged in sequence along the axial direction of the connecting pipe, and the movable member of the limiting device is connected with each elastic member of the limiting device.

3. The FRP anchor rod anchoring system according to any one of claims 1-2, characterized in that, The number of the limiting devices is equal to the number of the positioning blocks.

4. The FRP anchor rod anchoring system according to any one of claims 1-2, wherein, All the positioning blocks are uniformly arranged in the circumferential direction of the rod body, and all the limiting devices are uniformly arranged in the circumferential direction of the connecting pipe.

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