A chemical anchor assembly
By precisely controlling the amount of adhesive through the adhesive injection cylinder and sealing film structure, the problem of difficulty in controlling the amount of adhesive injected in the construction of traditional chemical anchors is solved, thus ensuring the anchoring strength and improving the construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI IND CONSTR GRP
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-09
AI Technical Summary
In traditional chemical anchor construction, it is difficult to precisely control the amount of adhesive injected, resulting in voids or waste of adhesive at the anchoring interface, which affects construction efficiency and anchoring strength.
The system employs an injection cylinder and sealing film structure. The injection cylinder extends into the anchor hole, and the sealing film is broken by the squeezing action of the inverted conical anchor rod, achieving precise filling of the adhesive. Combined with the use of the push rod, it ensures accurate adhesive quantity and avoids too much or too little adhesive.
Precise control of adhesive dosage was achieved, ensuring anchoring strength while avoiding adhesive waste, thus improving construction efficiency and quality.
Smart Images

Figure CN224338407U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction tools technology, and in particular to a chemical anchor bolt assembly. Background Technology
[0002] In building installation and construction, chemical anchors (such as...) Figure 4 As a key component of post-anchoring technology, chemical anchors are widely used in equipment fixing, steel structure connections, and other fields. Traditional chemical anchor installation requires drilling anchor holes according to design requirements, cleaning the holes, injecting a colloid filling two-thirds of the hole's volume, and then screwing the anchor rod into the colloid to solidify and form anchoring force. Operators use a caulking gun to directly inject the colloid into the anchor hole, and this process relies entirely on the operator's experience, making it prone to human error. Insufficient colloid injection results in the colloid not fully coating the anchor thread, leading to gaps at the anchoring interface and significantly reducing the anchor's pull-out resistance. Conversely, excessive colloid injection causes a large amount of colloid to overflow due to the squeezing effect of the anchor insertion, wasting colloid and requiring additional manual labor for cleaning, directly impacting construction efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a chemical anchor assembly that solves the aforementioned problems in the prior art.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0005] A chemical anchor assembly includes an inverted conical anchor rod, an injection cylinder, and a push rod. The injection cylinder is inserted into an anchor hole, and when the injection cylinder is inserted into the anchor hole, the rear end retaining ring of the injection cylinder abuts against the port of the anchor hole. Two sealing films are spaced apart at the front end of the injection cylinder, and the space between the two sealing films is filled with adhesive. The front end of the inverted conical anchor rod is fitted inside the injection cylinder. The rear end of the inverted conical anchor rod is detachably fitted with a push rod.
[0006] The beneficial effects of this utility model are: by setting up an injection cylinder and a sealing film, the amount of adhesive injected during anchoring can be precisely controlled, avoiding the situation of too much or too little adhesive during manual injection, ensuring the anchoring strength of chemical anchors while preventing adhesive waste.
[0007] Based on the above technical solution, the present invention can be further improved as follows.
[0008] Furthermore, the push rod includes a handle, a rod body, and a mounting block that are fixedly connected in sequence, and the mounting block has threads that match the inverted conical anchor rod.
[0009] The further beneficial effect of adopting the above is that setting a push rod makes it easier to insert the inverted conical anchor rod into the anchor hole along the glue injection cylinder.
[0010] Furthermore, an oleophobic coating is applied to both the inner and outer surfaces of the dispensing cartridge.
[0011] The further beneficial effect of adopting the above is that the glue injection tube with the oleophobic coating will not have glue adhering to it, thus avoiding the glue being carried out when the glue injection tube is pulled out of the anchor hole, which would cause waste. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a chemical anchor assembly according to the present invention. Figure 1 ;
[0013] Figure 2 This is a schematic diagram of the structure of a chemical anchor assembly according to the present invention. Figure 2 ;
[0014] Figure 3 This is a schematic diagram of the structure of a chemical anchor assembly according to the present invention. Figure 3 ;
[0015] Figure 4 This is a diagram of existing technology.
[0016] The attached diagram lists the components represented by each number as follows:
[0017] 1. Inverted conical anchor bolt; 2. Glue injection cylinder; 21. Retaining ring; 3. Sealing film; 4. Glue; 5. Push rod; 51. Rod body; 52. Mounting block; 53. Handle; 6. Anchor hole. Detailed Implementation
[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0019] Example 1
[0020] like Figures 1 to 3 As shown, a chemical anchor assembly includes an inverted conical anchor rod 1, an injection cylinder 2, and a push rod 5. The injection cylinder 2 is used to extend into an anchor hole 6, and when the injection cylinder 2 extends into the anchor hole 6, the rear end retaining ring 21 of the injection cylinder 2 abuts against the port of the anchor hole 6. Two sealing films 3 are spaced apart at the front end of the injection cylinder 2, and the space between the two sealing films 3 is filled with colloid 4. The front end of the inverted conical anchor rod 1 is sleeved inside the injection cylinder 2. The rear end of the inverted conical anchor rod 1 is detachably sleeved with the push rod 5.
[0021] After cleaning the anchor hole 6, first insert the glue injection cylinder 2 into the anchor hole 6, ensuring that the retaining ring 21 abuts against the end of the anchor hole 6. Then, place the push rod 5 onto the rear end of the inverted conical anchor rod 1 (e.g., Figure 3 (As shown), then the inverted conical anchor rod 1 is gradually pushed into the glue injection cylinder 2 by the push rod 5. Under the squeezing action of the conical anchor rod 1, the two sealing films 3 inside the glue injection cylinder 2 rupture, and the glue 4 flows out from the front port of the glue injection cylinder 2, filling the anchor hole 6 (as shown). Figure 2As shown), after the inverted conical anchor rod 1 is fully pushed into the anchor hole 6, the glue injection cylinder 2 is pulled out of the anchor hole 6 through the retaining ring 21 (as shown). Figure 1 As shown in the figure, the inverted conical anchor rod 1 is rotated by the push rod 5 to fully fill the space between the inverted conical anchor rod 1 and the anchor hole 6 with the colloid 4. Finally, the push rod 5 is removed to complete the anchoring of the chemical anchor. By setting the colloid injection cylinder 2 and the sealing film 3, the amount of colloid injected during anchoring can be precisely controlled, avoiding the situation of too much or too little colloid 4 due to manual colloid injection. This ensures the anchoring strength of the chemical anchor while preventing the waste of colloid 4.
[0022] It should be noted that the volume of the colloid 4 filling the space between the two sealing films 3 is 2 / 3 of the volume of the anchor hole 6.
[0023] Example 2
[0024] like Figures 1 to 3 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:
[0025] The push rod 5 includes a handle 53, a rod body 51, and a mounting block 52, which are fixedly connected in sequence. The mounting block 52 has threads that match the inverted conical anchor rod 1. The push rod 5 facilitates the insertion of the inverted conical anchor rod 1 into the anchor hole 6 along the glue injection cylinder 2.
[0026] Example 3
[0027] like Figures 1 to 3 As shown, this embodiment is a further improvement on any one of embodiments 1 to 2, as detailed below:
[0028] Both the inner and outer surfaces of the glue injection cylinder 2 are coated with an oleophobic coating. The oleophobic coating prevents the glue 4 from adhering to the glue injection cylinder 2, thus avoiding waste caused by the glue 4 being carried out when the glue injection cylinder 2 is pulled out of the anchor hole 6.
[0029] The sealing film 3 is made of vinyl resin; the adhesive 4 is a rebar anchoring adhesive. Vinyl resin can be used as an adhesive. After the sealing film 3 is broken, it remains in the adhesive 4 without affecting the strength of the adhesive 4; the rebar anchoring adhesive has strong anchoring force, good seismic performance, and no expansion stress.
[0030] The inverted conical anchor bolt 1 is made of stainless steel or galvanized steel. Both stainless steel and galvanized steel have high structural strength and corrosion resistance, which can maintain anchoring stability.
[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A chemical anchor assembly, characterized in that, The device includes an inverted conical anchor rod (1), an injection cylinder (2), and a push rod (5). The injection cylinder (2) is used to extend into the anchor hole (6). When the injection cylinder (2) extends into the anchor hole (6), the rear end retaining ring (21) of the injection cylinder (2) abuts against the port of the anchor hole (6). Two sealing films (3) are spaced apart at the front end of the injection cylinder (2), and the space between the two sealing films (3) is filled with glue (4). The front end of the inverted conical anchor rod (1) is sleeved inside the injection cylinder (2). The rear end of the inverted conical anchor rod (1) is detachably sleeved with the push rod (5).
2. The chemical anchor assembly according to claim 1, characterized in that, The push rod (5) includes a handle (53), a rod body (51) and a mounting block (52) that are fixedly connected in sequence. The mounting block (52) has a thread that matches the inverted conical anchor rod (1).
3. The chemical anchor assembly according to claim 1, characterized in that, The inner and outer surfaces of the glue injection cylinder (2) are both coated with an oleophobic coating.
4. The chemical anchor assembly according to claim 1, characterized in that, The sealing film (3) is made of vinyl resin; the colloid (4) is a rebar adhesive.
5. The chemical anchor assembly according to any one of claims 1 to 4, characterized in that, The inverted conical anchor rod (1) is made of stainless steel or galvanized steel.