Prestressed explosive bin anchor rod

Abstract

The utility model relates to a prestress explosive bin anchor rod which comprises a locking assembly, a connecting assembly and a prestress explosive bin assembly. The locking assembly is in threaded connection with one end of the connecting assembly, and the other end of the connecting assembly is connected with the prestressed explosive bin assembly in a clamping manner; the locking assembly is used for conducting secondary prestress adjusting and locking after the prestress explosive bin assembly is pre-connected with an anchor hole. The prestress explosive bin assembly is used for completing first-time prestress connection with an anchor hole and comprises an explosive bin body, a stirring head is rotationally arranged at one end of the explosive bin body, a rib groove is fixedly formed in a rotating shaft of the stirring head, and the rib groove is connected with the connecting assembly in a clamped mode; and an anchor head is fixedly arranged at the other end of the medicine bin. By means of the anchor rod, the anchoring effect can be remarkably improved, it is guaranteed that cartridges are fully stirred, construction efficiency is improved, cost is reduced, and efficient anchoring is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engineering technical field, especially relate to a prestressed cartridge anchor rod. BACKGROUND

[0002] In the field of geotechnical engineering and underground support, anchor rod as a key supporting component, its anchoring effect directly affects the safety and stability of the project. The traditional anchor rod is mainly divided into three types of mechanical anchoring, resin anchoring and grouting anchoring, but all have significant defects:

[0003] 1. Mechanical anchoring anchor rod relies on the friction between the anchor head and the rock mass to provide anchoring force, but when the rock mass strength is insufficient, slippage occurs, and the initial anchoring force is difficult to guarantee;

[0004] 2. The cartridge anchor rod has the problems of difficult cartridge feeding and insufficient mixing, resulting in uneven solidification, large anchoring strength fluctuation and low construction efficiency;

[0005] 3. The grouting anchor rod can enhance the bonding force through grouting, but the anchoring, grouting and prestress application need to be completed in steps, the process is complex, the construction period is long and the cost is high.

[0006] Therefore, it is necessary to provide a prestressed cartridge anchor rod to solve the problems in the background art. SUMMARY

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a prestressed cartridge anchor rod, comprising: a locking assembly, a connecting assembly, a prestressed cartridge assembly;

[0008] One end of the locking assembly and the connecting assembly is connected by threads, and the other end of the connecting assembly is connected with the prestressed cartridge assembly in the form of clamping; the locking assembly is used for locking after the prestressed cartridge assembly is pre-connected with the anchor hole;

[0009] The prestressed cartridge assembly is used for completing the first prestress connection with the anchor hole, and the prestressed cartridge comprises: a cartridge, one end of the cartridge is rotatably provided with a stirring head, a rib groove is fixedly arranged on the rotating shaft of the stirring head, and the rib groove is clamped with the connecting assembly;

[0010] An anchor head is fixedly arranged at the other end of the cartridge.

[0011] As a further improvement of the utility model, a plurality of drainage ports are provided on the inner wall of the cartridge.

[0012] As a further improvement of the utility model, a coagulation cartridge is placed in the cartridge.

[0013] As a further improvement of this utility model, the connecting component includes: a threaded steel rib, one end of which is engaged with the rib groove, and the other end is fixedly provided with a ribbed threaded steel end, the other end of which is connected to the locking component.

[0014] As a further improvement of this utility model, the locking assembly includes: a connecting sleeve, one end of which is connected to the ribbed threaded steel bar, and the other end is threadedly connected to the grouting rod. A butterfly-shaped pad is rotatably sleeved on the grouting rod, and a nut is provided on the butterfly pad. The nut is threadedly connected to the grouting rod.

[0015] As a further improvement of this utility model, a slurry outlet hole is provided at one end of the connecting sleeve near the ribbed threaded steel.

[0016] As a further improvement of this utility model, the grouting rod has a hollow channel inside and a threaded outer layer.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] A resin cartridge is placed inside the cartridge compartment. Simultaneously, the anchor bolt is inserted into the anchor hole, and the cartridge is stably positioned at the designated location. The mixing head in the cartridge compartment punctures the cartridge, allowing resin or cement to fully mix and solidify with the anchor bolt head and anchor hole, providing initial anchoring force. The pad and nut are then installed, the anchor bolt is tensioned to the designed prestress, and the nut is tightened to ensure structural stability.

[0019] During the grouting process, the grout is evenly injected into the anchor hole through the grout outlet and hollow channel of the connecting sleeve, further strengthening the connection between the anchor rod and the anchor hole and improving the overall anchoring effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a prestressed medicament container anchor.

[0021] The components are: 1. Nut; 2. Butterfly pad; 3. Grouting rod; 4. Connecting sleeve; 5. Grout outlet hole; 6. Ribbed threaded steel bar; 7. Threaded steel bar ribs; 8. Mixing head; 9. Chemical tank; 10. Anchor head. Detailed Implementation

[0022] See Figure 1 As shown, a prestressed medicated material container anchor bolt is characterized by comprising: a locking assembly, a connecting assembly, and a prestressed medicated material container assembly;

[0023] One end of the locking assembly and the connecting assembly are connected by threads, and the other end of the connecting assembly is connected to the prestressed explosive cartridge assembly by a snap-fit; the locking assembly is used to perform secondary prestress adjustment and locking after the prestressed explosive cartridge assembly has completed the pre-connection with the anchor hole;

[0024] The prestressed cartridge assembly is used to complete the first prestressed connection with the anchor hole, and the prestressed cartridge comprises: a cartridge 9, one end of the cartridge 9 is rotationally provided with a stirring head 8, a rib groove is fixedly arranged on the rotation shaft of the stirring head 8, and the rib groove is clamped with the connecting assembly;

[0025] An anchor head 10 is fixedly arranged on the other end of the cartridge 9.

[0026] As shown in the figure, the utility model further comprises: a plurality of drainage openings are through-provided on the inner wall of the cartridge 9; and a coagulation cartridge is placed in the cartridge 9.

[0027] According to the size of the locking assembly, an anchor hole is drilled at a working point by a tool, after the drilling of the anchor hole is completed, the coagulation cartridge is placed in the cartridge 9, then the locking assembly is connected with the connecting assembly in a threaded connection mode, so that the two are stably combined. Then the other end of the connecting assembly is clamped into the rib groove of the stirring head 8 rotation shaft, and the assembly of the whole anchor rod is completed.

[0028] At this time, the coagulation cartridge in the cartridge 9 is ready, the cartridge 9 is pushed into the bottom of the anchor hole under the action of the anchor head 10, the cartridge 9 rotates the locking assembly after reaching the bottom of the anchor hole, the stirring head 8 is driven under the action of the connecting assembly, the stirring head 8 pierces the coagulation cartridge, the resin or cement in the cartridge is extruded and fully stirred, and is integrated with the anchor head and the anchor hole to provide initial anchoring force.

[0029] Then the prestress is further applied by adjusting the locking assembly, so that the anchor rod is tightly combined with the anchor hole, the locking nut is locked after the anchor rod is tensioned to the designed prestress, and the secondary prestress adjustment is completed. Finally, grouting is carried out, the slurry is uniformly filled in the anchor hole through the internal passage and the grouting hole of the locking assembly, the tight combination of the anchor rod and the anchor hole is further strengthened, and the stability and safety of the whole structure are ensured.

[0030] As a preferred embodiment, the connecting assembly comprises: a ribbed steel bar 7, one end of the ribbed steel bar 7 is clamped with the rib groove, and the other end of the ribbed steel bar 7 is fixedly provided with one end of a ribbed threaded steel 6, the other end of the ribbed threaded steel 6 is connected with the locking assembly;

[0031] The locking assembly comprises: a connecting sleeve 4, one end of the connecting sleeve 4 is connected with the ribbed threaded steel 6, the other end of the connecting sleeve 4 is threadedly connected with a grouting rod 3, a butterfly-shaped pad 2 is rotationally sleeved on the grouting rod 3, a nut 1 is arranged on the butterfly-shaped pad 2, and the nut 1 is threadedly connected with the grouting rod 3;

[0032] After the initial anchoring force is provided, the butterfly washer 2 and the nut are installed on the grouting rod 3, the nut 1 is rotated to adjust the contact pressure between the butterfly washer 2 and the anchor hole, and the anchor rod is tightly attached to the anchor hole. At the same time, the anchor rod is tensioned to the design prestress during the adjustment of the nut 1, and finally the prestress is fixed by locking the nut 1 to ensure the stability of the anchor rod. Then grouting is carried out, the slurry is uniformly filled in the anchor hole through the internal channel and the grouting hole of the grouting rod 3, the combination of the anchor rod and the anchor hole is further strengthened, and the stability and safety of the overall structure are improved.

[0033] The grouting hole 3 is arranged at one end of the connecting sleeve 4 close to the ribbed threaded steel 6; the internal channel of the grouting rod 3 is hollow, and the outer surface layer is provided with threads.

[0034] During the grouting process, the slurry is uniformly distributed through the internal channel and the grouting hole 3 of the grouting rod 3, the slurry fully penetrates the gap between the anchor hole wall and the anchor rod, forms a high-strength solidified layer, and further enhances the integrity of the anchor rod and the anchor hole. After the slurry solidifies, the stability of the overall structure is significantly improved, and the design prestress requirement is met.

[0035] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pre-stressed cartridge anchor, characterized by: Include: Locking assembly, connecting assembly, prestressed cartridge assembly; One end of the locking assembly and the connecting assembly is connected by thread, the other end of the connecting assembly is connected with the prestressed cartridge assembly in the form of clamping; the locking assembly is used for the prestressed cartridge assembly to complete the pre-connection with the anchor hole, and then the secondary prestress adjustment locking is carried out; The prestressed cartridge assembly is used to complete the first prestress connection with the anchor hole, the prestressed cartridge includes: cartridge (9), one end of the cartridge (9) is rotatably provided with stirring head (8), rib groove is fixedly arranged on the rotating shaft of the stirring head (8), the rib groove is clamped with the connecting assembly; The anchor head (10) is fixedly arranged on the other end of the cartridge (9).

2. A pre-stressed cartridge anchor according to claim 1, wherein: A plurality of drainage ports are provided on the inner wall of the cartridge (9).

3. A pre-stressed cartridge anchor according to claim 1, wherein: The cartridge (9) is placed with coagulation cartridge.

4. The pre-stressed cartridge anchor of claim 1, wherein: The connecting assembly includes: ribbed steel bar (7), one end of the ribbed steel bar (7) is clamped with the rib groove, the other end is fixedly provided with one end of ribbed threaded steel (6), the other end of the ribbed threaded steel (6) is connected with the locking assembly.

5. A pre-stressed cartridge anchor according to claim 4, wherein: The locking assembly includes: connecting sleeve (4), one end of the connecting sleeve (4) is connected with the ribbed threaded steel (6), the other end is threadedly connected with the grouting rod (3), the butterfly-shaped pad plate (2) is rotatably sleeved on the grouting rod (3), the nut (1) is arranged on the butterfly-shaped pad plate (2), the nut (1) and the grouting rod (3) are threadedly connected.

6. A pre-stressed cartridge anchor according to claim 5, wherein: The grouting hole (5) is arranged on one end of the connecting sleeve (4) close to the ribbed threaded steel (6).

7. A pre-stressed cartridge anchor according to claim 5, wherein: The grouting rod (3) is internally provided with a hollow channel, and the outer surface is provided with threads.

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