Dry powder accelerator filling and guniting support frame
By designing a plug-in mechanism that allows for quick unlocking and locking, the problem of existing dry powder quick-setting agent injection and shotcrete support frames being unable to adapt to nozzles of different diameters has been solved. This enables convenient fixing and replacement of nozzles of different specifications, improving operational efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-14
AI Technical Summary
The existing dry powder quick-setting agent injection and shotcrete support frame cannot adapt to nozzles of different diameters, resulting in low applicability and a complicated replacement process.
A plug-in mechanism with quick unlocking and locking was designed, which, through the combination of sliding blocks and fixed frames, enables convenient fixing and replacement of nozzles of different diameters.
It improves the equipment's adaptability to different nozzle specifications, simplifies the replacement process, enhances operational efficiency and safety, and strengthens the device's versatility and practicality.
Smart Images

Figure CN224120260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shotcrete support technology, and in particular to a dry powder quick-setting agent injection and shotcrete support. Background Technology
[0002] Shotcrete support is a widely used construction technique in support operations in tunnel construction, mining, and underground engineering. It provides immediate support and protection by spraying concrete onto the rock wall or tunnel surface.
[0003] A Chinese patent with publication number CN218779880U, entitled "A Dry Powder Accelerator Injection and Shotcrete Support Frame," includes a base. A disc is rotatably connected above the base, and a linear drive mechanism is connected above the disc. The output end of the linear drive mechanism is connected to a first rod. An adjustment mechanism is mounted above the first rod, and two arc-shaped plates are positioned above the adjustment mechanism. Rubber plates are connected to the opposite sides of the two arc-shaped plates. This invention, through the use of a rotating disc and a fixed plate, utilizes a first planar thread and a second planar thread for engagement. The self-locking nature of these threads prevents the positioning rod from rotating within the space of the two first plates, thus preventing the shotcrete nozzle from falling off arbitrarily. However, because the two arc-shaped plates are fixed, this device cannot fix nozzles of different diameters, resulting in low applicability. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dry powder quick-setting agent injection and shotcrete support frame.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A dry powder quick-setting agent injection and shotcrete support frame includes a base. The lower end of the base moves in coordination through multiple moving mechanisms. A turntable is rotatably connected to the upper end of the base. A first motor that drives the turntable to rotate is fixedly connected to the lower end of the base. A support plate is connected above the turntable through a hydraulic mechanism. A U-shaped frame is fixedly connected to the upper end of the support plate. A rotating block is rotatably connected inside the U-shaped frame. A second motor that drives the rotating block to rotate is fixedly connected to one side of the U-shaped frame. A fixed plate is fixedly connected to the other end of the rotating block. A sliding groove is formed at the upper end of the fixed plate. Two sliding blocks are connected to the sliding groove through a driving mechanism. A fixed frame is fixedly connected to each of the two sliding blocks through an insertion mechanism.
[0007] As a further improvement of this utility model, the moving mechanism includes a support column fixedly connected to the lower end of the base, and a caster wheel is fixedly connected to the lower end of the support column.
[0008] As a further improvement of this utility model, the hydraulic mechanism includes a hydraulic cylinder fixedly connected to the upper end of the turntable, the telescopic end of the hydraulic cylinder being fixedly connected to the lower end of the support plate, and telescopic rods being fixedly connected to both sides of the upper end of the turntable located on the hydraulic cylinder, with the telescopic ends of the two telescopic rods being fixedly connected to the lower end of the support plate.
[0009] As a further improvement of this utility model, the driving mechanism includes a double-ended threaded rod rotatably connected in a sliding groove, with moving blocks threadedly connected to both ends of the double-ended threaded rod, and both moving blocks sliding in the sliding groove. A third motor for driving the double-ended threaded rod to rotate is fixedly connected to one side of the fixed plate.
[0010] As a further improvement of this utility model, the insertion mechanism includes a fixed block disposed on one side of the sliding block. The upper end of the sliding block is provided with an insertion groove, and the lower end of the fixed frame is inserted into the insertion groove. A fixing groove is provided on one side of the lower end of the fixed frame. One end of the fixed block passes through the insertion groove and is inserted into the fixing groove. The other end of the fixed block is fixedly connected to a pull plate. Both ends of one side of the pull plate are connected to the sliding block by springs.
[0011] As a further improvement of this utility model, clamping frames are fixedly connected to the sides of the two fixed frames that are close to each other, and rubber pads are fixedly connected inside the two clamping frames.
[0012] The beneficial effects of this utility model are:
[0013] This invention features a quick-unlocking and locking plug-in mechanism, allowing users to easily replace the fixing frame to accommodate nozzles of different diameters. A pull plate allows the fixing block to be easily removed from the fixing slot, thus detaching the fixing frame from the sliding block. Users can then select a fixing frame of the appropriate size for replacement. This design not only significantly improves the device's adaptability to different nozzle sizes but also simplifies the replacement process, increases operational efficiency, and ensures a more flexible, efficient, and safe operation. This significantly enhances the device's versatility and practicality in various application scenarios.
[0014] This utility model facilitates the replacement of fixed frames that are compatible with nozzles of different diameters, making operation simple and significantly improving the adaptability, versatility, and practicality of the equipment, thus making operations more flexible and efficient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a dry powder quick-setting agent injection and shotcrete support frame proposed in this utility model;
[0016] Figure 2This is a partial cross-sectional structural diagram of the connection between the dry powder quick-setting agent injection and the fixed plate, driving mechanism, sliding groove, fixed frame, fixing mechanism, plug groove, fixed frame, clamping frame, and rubber pad of the shotcrete support frame proposed in this utility model.
[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0018] In the diagram: 1. Base, 2. Support column, 3. Casters, 4. Turntable, 5. First motor, 6. Telescopic rod, 7. Hydraulic cylinder, 8. Pulling plate, 9. Support plate, 10. Second motor, 11. U-shaped frame, 12. Rotating block, 13. Fixing plate, 14. Third motor, 15. Sliding block, 16. Fixing frame, 17. Clamping frame, 18. Rubber pad, 19. Insertion slot, 20. Fixing slot, 21. Fixing block, 22. Spring, 23. Moving block, 24. Double-ended threaded rod, 25. Sliding slot. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Figures 1-3 A dry powder quick-setting agent injection and shotcrete support frame includes a base 1. The lower end of the base 1 is moved in coordination by multiple moving mechanisms. The moving mechanisms are used for position adjustment of the entire device, enabling convenient movement and positioning. The moving mechanism includes a support column 2 fixedly connected to the lower end of the base 1, providing stable support. The lower end of the support column 2 is fixedly connected to a caster wheel 3 with a self-locking device, allowing the equipment to move flexibly while maintaining a fixed position. A turntable 4 is rotatably connected to the upper end of the base 1, and a first electric motor driving the turntable 4 to rotate is fixedly connected to the lower end of the base 1. The mechanism 5 changes the orientation of the components above the turntable 4. A support plate 9 is connected to the top of the turntable 4 via a hydraulic mechanism. The hydraulic mechanism is responsible for adjusting the height of the support plate 9 to adapt to different operating requirements. The hydraulic mechanism includes a hydraulic cylinder 7 fixedly connected to the upper end of the turntable 4. The telescopic end of the hydraulic cylinder 7 is fixedly connected to the lower end of the support plate 9. Telescopic rods 6 are fixedly connected to both sides of the upper end of the turntable 4 located on the hydraulic cylinder 7. The telescopic ends of the two telescopic rods 6 are fixedly connected to the lower end of the support plate 9. The telescopic rods 6 provide additional stability to the support plate 9 to ensure smooth operation.
[0021] A U-shaped frame 11 is fixedly connected to the upper end of the support plate 9. A rotating block 12 is rotatably connected inside the U-shaped frame 11. The rotating block 12 can rotate freely within the U-shaped frame 11 to adjust the orientation of the components mounted on it. A second motor 10 is fixedly connected to one side of the U-shaped frame 11 to drive the rotating block 12 to rotate, thereby changing the working angle of the subsequent components. A fixed plate 13 is fixedly connected to the other end of the rotating block 12. A sliding groove 25 is provided at the upper end of the fixed plate 13. Two sliding blocks 15 are connected to the sliding groove 25 through a drive mechanism. The drive mechanism includes a double-ended threaded rod 24 rotatably connected within the sliding groove 25. Moving blocks 23 are threaded to both ends of the double-ended threaded rod 24. Both moving blocks 23 slide within the sliding groove 25. The rotation of the double-ended threaded rod 24 causes the moving blocks 23 to move closer or further apart to adjust the clamping width. A third motor 14 is fixedly connected to one side of the fixed plate 13 to drive the double-ended threaded rod 24 to rotate. The third motor 14 drives the double-ended threaded rod 24 to rotate. The position of the sliding block 15 is adjusted by rotation. Each of the two sliding blocks 15 is fixedly connected to a fixed frame 16 via a plug-in mechanism. A clamping frame 17 is fixedly connected to the side of each fixed frame 16 that is close to the other. A rubber pad 18 is fixedly connected inside each clamping frame 17. The rubber pad 18 increases friction and ensures the stability of the clamped object. The plug-in mechanism includes a fixed block 21 located on one side of the sliding block 15. A plug-in groove 19 is provided at the upper end of the sliding block 15. The lower end of the fixed frame 16 is inserted into the plug-in groove 19, which guides the correct insertion position of the fixed frame 16. A fixed groove 20 is provided on one side of the lower end of the fixed frame 16. One end of the fixed block 21 passes through the plug-in groove 19 and is inserted into the fixed groove 20. A pull plate 8 is fixedly connected to the other end of the fixed block 21. The pull plate 8 allows the user to manually unlock the plug-in mechanism. Both ends of one side of the pull plate 8 are connected to the sliding block 15 via springs 22. The springs 22 maintain pressure on the fixed groove 20 by the fixed block 21, ensuring a secure connection.
[0022] In use, this invention first moves the entire device to the designated working position and locks it using the universal wheels 3 with self-locking devices, ensuring the equipment remains stable. The first motor 5 is then activated to adjust the direction of the turntable 4 to the optimal working angle. Subsequently, the height of the support plate 9 is adjusted using a hydraulic mechanism to achieve a suitable operating height, with the telescopic rod 6 moving synchronously to ensure the stability of the support plate 9. Next, the second motor 10 drives the rotating block 12 to rotate, precisely adjusting the angle of the fixed plate 13 and its components for subsequent operations. Then, the third motor 14 drives the double-ended threaded rod 24 to rotate, adjusting the position of the two sliding blocks 15, thereby changing the distance between the clamping frames 17 to securely clamp the dry powder quick-setting agent dispensing equipment or other required tools. Finally, by manually unlocking the insertion mechanism by pulling the plate 8, the fixed frame 16 can be easily replaced to accommodate different clamping diameters, ensuring the entire operation is efficient, flexible, and safe.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A dry powder quick-setting agent injection and shotcrete support frame, comprising a base (1), characterized in that, The lower end of the base (1) moves in coordination through multiple moving mechanisms. The upper end of the base (1) is rotatably connected to a turntable (4). The lower end of the base (1) is fixedly connected to a first motor (5) that drives the turntable (4) to rotate. The upper part of the turntable (4) is connected to a support plate (9) through a hydraulic mechanism. The upper end of the support plate (9) is fixedly connected to a U-shaped frame (11). A rotating block (12) is rotatably connected inside the U-shaped frame (11). A second motor (10) that drives the rotating block (12) to rotate is fixedly connected to one side of the U-shaped frame (11). A fixed plate (13) is fixedly connected to the other end of the rotating block (12). A sliding groove (25) is opened at the upper end of the fixed plate (13). Two sliding blocks (15) are connected inside the sliding groove (25) through a driving mechanism. A fixed frame (16) is fixedly connected to each of the two sliding blocks (15) through a plug-in mechanism.
2. The dry powder quick-setting agent injection and shotcrete support frame according to claim 1, characterized in that, The moving mechanism includes a support column (2) fixedly connected to the lower end of the base (1), and a caster wheel (3) is fixedly connected to the lower end of the support column (2).
3. The dry powder quick-setting agent injection and shotcrete support frame according to claim 1, characterized in that, The hydraulic mechanism includes a hydraulic cylinder (7) fixedly connected to the upper end of the turntable (4). The telescopic end of the hydraulic cylinder (7) is fixedly connected to the lower end of the support plate (9). Telescopic rods (6) are fixedly connected to both sides of the upper end of the turntable (4) on the hydraulic cylinder (7). The telescopic ends of the two telescopic rods (6) are fixedly connected to the lower end of the support plate (9).
4. The dry powder quick-setting agent injection and shotcrete support frame according to claim 1, characterized in that, The driving mechanism includes a double-ended threaded rod (24) rotatably connected in a sliding groove (25). Both ends of the double-ended threaded rod (24) are threaded with moving blocks (23). Both moving blocks (23) slide in the sliding groove (25). A third motor (14) for driving the double-ended threaded rod (24) to rotate is fixedly connected to one side of the fixed plate (13).
5. The dry powder quick-setting agent injection and shotcrete support frame according to claim 1, characterized in that, The insertion mechanism includes a fixed block (21) disposed on one side of the sliding block (15). The upper end of the sliding block (15) is provided with an insertion groove (19). The lower end of the fixed frame (16) is inserted into the insertion groove (19). A fixed groove (20) is provided on one side of the lower end of the fixed frame (16). One end of the fixed block (21) passes through the insertion groove (19) and is inserted into the fixed groove (20). The other end of the fixed block (21) is fixedly connected to a pull plate (8). Both ends of one side of the pull plate (8) are connected to the sliding block (15) by springs (22).
6. The dry powder quick-setting agent injection and shotcrete support frame according to claim 1, characterized in that, Each of the two fixed frames (16) is fixedly connected to a clamping frame (17) on one side that is close to each other, and a rubber pad (18) is fixedly connected inside each of the two clamping frames (17).
Citation Information
Patent Citations
Dry powder accelerator filling and guniting support frame
CN218779880U