Positioning, guiding and glue injection integrated device for concrete embedded steel bar reinforcement

By designing the guide tube and auxiliary components, the problem of loose adhesive injection caused by air inside the rebar hole was solved, achieving full filling of the adhesive and accurate positioning and guidance of the rebar, thus improving the connection effect and support strength of the rebar.

CN224244494UActive Publication Date: 2026-05-15GUANGZHOU MAOJIAN ROAD & BRIDGE ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU MAOJIAN ROAD & BRIDGE ENG TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the current adhesive injection process, the presence of air inside the rebar holes leads to incomplete filling of the adhesive, forming voids and affecting the connection effect.

Method used

An integrated positioning, guiding, and adhesive injection device for concrete rebar reinforcement was designed, including a guide cylinder and auxiliary components. The guide cylinder is inserted into the rebar hole to expel internal air and serves as a guide tube for the rebar after adhesive injection, ensuring that the adhesive is fully filled.

Benefits of technology

This effectively avoids the influence of air on the connection effect, improves the support strength of the rebar and the installation accuracy of the rebar, and enhances the rebar installation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete bar planting, and discloses a glue injection integrated device for concrete bar planting reinforcement, which comprises a mounting plate, the surface of the mounting plate is fixedly connected with a connecting plate, the surface of the connecting plate is provided with a positioning hole, the top of the mounting plate is provided with a guide cylinder, and the guide cylinder is fixedly connected with the connecting plate. One end of the guide cylinder penetrates through the mounting plate and is fixedly connected with a mounting ring, and the other end of the guide cylinder is connected with two symmetrically distributed connecting semi-ring patterns; through the arrangement of the auxiliary assembly, preliminary exhaust of the interior of the bar planting hole can be achieved in the insertion process of the guide cylinder, and air in the guide cylinder is actively exhausted after preliminary exhaust is completed, so that the influence of air in the planting hole on glue injection is reduced; therefore, the situation that cavities are formed among the follow-up steel bars, the colloid and the inner wall of the drilled hole due to the existence of the gas to affect the connecting effect and the supporting strength is avoided, the influence of the air on steel bar planting is effectively reduced, and the steel bar planting effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of concrete rebar installation technology, specifically to an integrated positioning, guiding, and adhesive injection device for concrete rebar reinforcement. Background Technology

[0002] Rebar anchoring, also known as rebar planting, is a connection technology in seismic reinforcement engineering of building structures that uses structural adhesive to lock and hold rebar in place. It is the best choice for structural rebar anchoring reinforcement and heavy load fastening applications. The current rebar anchoring method mainly consists of the following steps: drilling, cleaning the hole, injecting adhesive, and inserting the rebar. The current adhesive injection method mainly uses an adhesive gun to insert into the rebar hole to apply adhesive. However, during the adhesive injection process, the presence of air inside the rebar hole can easily cause the adhesive to not fill tightly, resulting in voids between the adhesive and the inner wall of the hole after the rebar is inserted, which affects the connection effect. Therefore, those skilled in the art have proposed an integrated positioning and guiding device and adhesive injection device for concrete rebar anchoring reinforcement. Utility Model Content

[0003] The purpose of this utility model is to provide an integrated positioning, guiding, and adhesive injection device for concrete rebar reinforcement, which solves the problem in the prior art where the presence of air inside the rebar hole during the adhesive injection process easily leads to incomplete adhesive filling, resulting in voids between the adhesive and the inner wall of the hole after the rebar is inserted, thus affecting the connection effect.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] An integrated adhesive injection device for concrete rebar reinforcement includes:

[0006] Mounting plate, the surface of which is fixedly connected to a connecting plate, the surface of which is provided with positioning holes, the top of which is provided with a guide cylinder, one end of which passes through the mounting plate and is fixedly connected to a mounting ring, the other end of which is connected to two symmetrically distributed connecting half-rings, the surface of which is provided with external threads, and the bottom of which is embedded with a resistance-increasing pad.

[0007] An auxiliary component, which is detachably disposed inside the guide cylinder;

[0008] The auxiliary component includes a cover plate disposed at the end of the guide cylinder away from the mounting ring, the surface of the cover plate having a connecting groove, and the inner wall of the connecting groove having an internal thread.

[0009] Preferably, a sealing plate is slidably connected inside the guide cylinder, and an adjusting screw is rotatably connected to the top of the sealing plate. The upper end of the adjusting screw is threaded through the cover plate, and a through hole is formed on the surface of the sealing plate.

[0010] Preferably, a retaining ring is fixedly connected to the inner wall of the through hole, a sealing ring is slidably connected to the inner wall of the through hole, two symmetrically distributed mounting pieces are fixedly connected to the inner wall of the through hole, a sealing rod is fixedly connected between the two mounting pieces, and the other end of the sealing rod extends to the inner side of the sealing ring and is slidably connected to the inner side of the sealing ring.

[0011] Preferably, the end of the sealing rod away from the sealing ring has a groove, a spring is fixedly connected to the surface of the sealing ring, and the other end of the spring is fixedly connected to the surface of the mounting plate.

[0012] Preferably, the surface of the cover plate is provided with ventilation holes, and a sealing plate corresponding to the groove is fixedly connected to the surface of the cover plate, and the length of the sealing plate is greater than the opening length of the groove.

[0013] Preferably, the surface of the guide cylinder is connected to a connecting pipe, and the other end of the connecting pipe is provided with a detachable glue injection pipe. The bottom surface of the mounting ring is provided with a guide hole that penetrates the bottom surface of the guide cylinder and communicates with the inside of the guide cylinder.

[0014] A positioning and guiding device for concrete rebar reinforcement includes the aforementioned integrated adhesive injection device for concrete rebar reinforcement.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] 1. By setting auxiliary components, the initial air venting inside the rebar hole can be achieved during the insertion of the guide cylinder. After the initial air venting is completed, the gas inside the guide cylinder is actively discharged, reducing the impact of air in the planting hole on the injection of adhesive. This avoids the formation of voids between the rebar, adhesive and the inner wall of the drill hole due to the presence of gas, which affects the connection effect and support strength. It effectively reduces the impact of air on rebar installation and improves the rebar installation effect.

[0017] 2. By setting up the guide tube, the sealing plate can be removed after the glue is injected. At this time, the guide tube can be used as a guide tube for the steel bars in the subsequent rebar installation process, so that the steel bar insertion can be positioned and guided to improve the rebar installation effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the guide cylinder of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the sealing plate and the guide cylinder of this utility model;

[0021] Figure 4This is a schematic diagram showing the separation of the cover plate and the connecting half-ring of this utility model;

[0022] Figure 5 for Figure 3 A magnified view of A in the middle.

[0023] The components include: 1. Mounting plate; 101. Guide cylinder; 102. Connecting plate; 103. Resistance pad; 104. Mounting ring; 105. Guide hole; 106. Connecting half ring; 2. Auxiliary components; 201. Sealing plate; 202. Adjusting screw; 203. Cover plate; 204. Connecting groove; 205. Sealing plate; 206. Sealing ring; 207. Retaining ring; 208. Spring; 209. Mounting piece; 210. Sealing rod; 211. Groove; 3. Glue injection tube; 301. Connecting tube. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 A positioning, guiding, and adhesive injection integrated device for concrete rebar reinforcement, comprising:

[0026] Mounting plate 1, with connecting plate 102 fixedly connected to the surface of mounting plate 1, positioning holes opened on the surface of connecting plate 102, guide cylinder 101 provided on the top of mounting plate 1, one end of guide cylinder 101 passing through mounting plate 1 and fixedly connected to mounting ring 104, the other end of guide cylinder 101 connected to two symmetrically distributed connecting half rings 106, the surface of connecting half rings 106 having external threads, and a resistance pad 103 embedded in the bottom of mounting plate 1;

[0027] Auxiliary component 2 is detachably disposed inside the guide cylinder 101;

[0028] The auxiliary component 2 includes a cover plate 203 disposed at the end of the guide cylinder 101 away from the mounting ring 104. The surface of the cover plate 203 is provided with a connecting groove 204, and the inner wall of the connecting groove 204 is provided with an internal thread.

[0029] The cover plate 203 can be installed and removed by thread through the internal thread in the connecting groove 204 and the external thread on the connecting half ring 106, which is easy to operate.

[0030] The friction-increasing pad 103 is used to increase the friction between the mounting plate 1 and the concrete surface, thereby improving the stability during the installation process.

[0031] The positioning holes on the connecting plate 102 can be used in conjunction with other pre-drilled rebar holes for fixing by bolt insertion. The operation is simple and can effectively utilize the fixed positions naturally formed by other rebar holes, thus effectively improving installation efficiency.

[0032] Please see Figure 1-5 A sealing plate 201 is slidably connected inside the guide cylinder 101. An adjusting screw 202 is rotatably connected to the top of the sealing plate 201. The upper end of the adjusting screw 202 is threaded through the cover plate 203. A through hole is opened on the surface of the sealing plate 201.

[0033] A retaining ring 207 is fixedly connected to the inner wall of the through hole, a sealing ring 206 is slidably connected to the inner wall of the through hole, and two symmetrically distributed mounting pieces 209 are fixedly connected to the inner wall of the through hole. A sealing rod 210 is fixedly connected between the two mounting pieces 209, and the other end of the sealing rod 210 extends to the inner side of the sealing ring 206 and is slidably connected to the inner side of the sealing ring 206.

[0034] The sealing rod 210 has a groove 211 at one end away from the sealing ring 206. A spring 208 is fixedly connected to the surface of the sealing ring 206, and the other end of the spring 208 is fixedly connected to the surface of the mounting plate 209.

[0035] The surface of the cover plate 203 is provided with ventilation holes, and the surface of the cover plate 203 is fixedly connected with a sealing plate 205 corresponding to the groove 211, and the length of the sealing plate 205 is greater than the opening length of the groove 211.

[0036] Insert the guide cylinder 101 into the drilled rebar hole. At this time, the mounting ring 104 can slide against the inner wall of the rebar hole (the specifications of the mounting ring 104 and the guide cylinder 101 should be selected according to the hole diameter and the steel diameter of the rebar). As the guide cylinder 101 is inserted and the sealing plate 201 blocks the air inside the rebar hole, the compressed air pressure gradually rises, thus overcoming the pressure of the spring 208 on the sealing ring 206, causing the sealing ring 206 to separate from the retaining ring 207 and move along the sealing rod 210. While the surface slides, the spring 208 is compressed. During this process, the gas can pass through the groove 211, bypass the sealing ring 206, enter the interior of the guide cylinder 101, and be discharged through the vent hole, thereby venting the air inside the anchoring hole until the guide cylinder 101 is completely inserted into the anchoring hole. At this time, the adjusting screw 202 is rotated to gradually extend from the interior of the guide cylinder 101 and drive the sealing plate 201 to slide along the inner wall of the guide cylinder 101, thereby venting the air inside the guide cylinder 101 through the vent hole and reducing the gas inside the anchoring hole.

[0037] The sealing plate 205 is designed to limit the position of the sealing ring 201 by the sealing rod 205 after the sealing plate 201 contacts the end cap 203 on one side, thereby preventing the injected colloid from passing through the sealing ring 201.

[0038] Please see Figure 1-5 The surface of the guide cylinder 101 is connected to the connecting pipe 301, and the other end of the connecting pipe 301 is provided with a detachable glue injection pipe 3. The bottom surface of the mounting ring 104 is provided with a guide hole 105 that penetrates the bottom surface of the guide cylinder 101 and communicates with the inside of the guide cylinder 101.

[0039] After the gas inside the anchoring hole is discharged, the injection tube 3 is connected to the connecting tube 301, and the anchoring adhesive is injected into the guide cylinder 101 through the two. The anchoring adhesive is injected into the anchoring hole through the guide hole 105 by the guide cylinder 101. As the anchoring adhesive gradually fills the interior of the anchoring hole, it can push the mounting ring 104 in the opposite direction to drive the guide cylinder 101 to slide along the inner wall of the mounting plate 1 until the preset filling specification is reached. The filling depth can be judged according to the length of the guide cylinder 101 pushed out. Since the gas was discharged in the previous step, it can be ensured that the anchoring adhesive is fully filled into the interior of the anchoring hole, reducing the voids caused by the presence of gas that affect the subsequent solidification effect.

[0040] Please see Figure 1-5 A positioning and guiding device for concrete rebar reinforcement includes the aforementioned integrated adhesive injection device for concrete rebar reinforcement.

[0041] After the anchoring adhesive is injected, the cover plate 203 is rotated in the opposite direction to separate it from the connecting half ring 106, thereby separating the sealing plate 201 from the guide cylinder 101. At this time, the rebar can be inserted into the interior of the anchoring adhesive through the guide cylinder 101 as a guide installation channel, which improves the installation effect of the rebar. During the installation process, the guide cylinder 101 can be used as a positioning guide to make the installation more accurate and reduce the impact of deviation on the subsequent use effect.

[0042] Working principle: The positioning holes on the connecting plate 102 can be used with other pre-drilled anchoring holes for bolt insertion and fixation. The guide cylinder 101 is inserted into the pre-drilled anchoring hole. At this time, the mounting ring 104 can slide against the inner wall of the anchoring hole (the specifications of the mounting ring 104 and the guide cylinder 101 should be selected according to the opening diameter of the anchoring hole and the steel diameter of the anchoring bar). As the guide cylinder 101 is inserted and the sealing plate 201 blocks it, the air inside the anchoring hole is gradually compressed. The compressed air pressure gradually rises, thereby overcoming the pressure of the spring 208 on the sealing ring 206. The auxiliary component 2 is used to reduce the gas inside the anchoring hole. After the anchoring adhesive is injected, the cover plate 203 is rotated in the opposite direction to separate it from the connecting half ring 106, thereby separating the sealing plate 201 and the guide cylinder 101. At this time, the rebar can be inserted into the interior of the anchoring adhesive through the guide cylinder 101 as a guide installation channel, which improves the installation effect of the rebar. During the installation process, the guide cylinder 101 can be used as a positioning guide to make the installation more accurate and reduce the deviation that affects the subsequent use effect.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated adhesive injection device for concrete rebar reinforcement, characterized in that, include: Mounting plate (1), a connecting plate (102) is fixedly connected to the surface of the mounting plate (1), the surface of the connecting plate (102) is provided with positioning holes, a guide cylinder (101) is provided on the top of the mounting plate (1), one end of the guide cylinder (101) passes through the mounting plate (1) and is fixedly connected with a mounting ring (104), the other end of the guide cylinder (101) is connected with two symmetrically distributed connecting half rings (106), the surface of the connecting half rings (106) is provided with external threads, and a resistance pad (103) is embedded in the bottom of the mounting plate (1); Auxiliary component (2), which is detachably disposed inside the guide cylinder (101); The auxiliary component (2) includes a cover plate (203) disposed at the end of the guide cylinder (101) away from the mounting ring (104). The surface of the cover plate (203) is provided with a connecting groove (204), and the inner wall of the connecting groove (204) is provided with an internal thread.

2. The integrated adhesive injection device for concrete rebar reinforcement according to claim 1, characterized in that: The guide cylinder (101) is slidably connected to a sealing plate (201), and the top of the sealing plate (201) is rotatably connected to an adjusting screw (202). The upper end of the adjusting screw (202) is threaded through the cover plate (203), and the surface of the sealing plate (201) is provided with a through hole.

3. The integrated adhesive injection device for concrete rebar reinforcement according to claim 2, characterized in that: A retaining ring (207) is fixedly connected to the inner wall of the through hole, a sealing ring (206) is slidably connected to the inner wall of the through hole, and two symmetrically distributed mounting pieces (209) are fixedly connected to the inner wall of the through hole. A sealing rod (210) is fixedly connected between the two mounting pieces (209), and the other end of the sealing rod (210) extends to the inner side of the sealing ring (206) and is slidably connected to the inner side of the sealing ring (206).

4. The integrated adhesive injection device for concrete rebar reinforcement according to claim 3, characterized in that: The sealing rod (210) has a groove (211) at one end away from the sealing ring (206), and a spring (208) is fixedly connected to the surface of the sealing ring (206). The other end of the spring (208) is fixedly connected to the surface of the mounting plate (209).

5. The integrated adhesive injection device for concrete rebar reinforcement according to claim 4, characterized in that: The surface of the cover plate (203) is provided with ventilation holes, and the surface of the cover plate (203) is fixedly connected with a sealing plate (205) corresponding to the groove (211), and the length of the sealing plate (205) is greater than the opening length of the groove (211).

6. The integrated adhesive injection device for concrete rebar reinforcement according to claim 1, characterized in that: The surface of the guide cylinder (101) is connected to a connecting pipe (301), and the other end of the connecting pipe (301) is provided with a detachable glue injection pipe (3). The bottom surface of the mounting ring (104) is provided with a guide hole (105) that penetrates the bottom surface of the guide cylinder (101) and communicates with the inside of the guide cylinder (101).

7. A positioning and guiding device for concrete rebar reinforcement, characterized in that, The device includes the integrated adhesive injection device for concrete rebar reinforcement as described in any one of claims 1-6.