Anchor head for rotary jet grouting anchor cable construction

Abstract

The utility model relates to the technical field of anchor cable anchorage devices, and provides a rotary jet grouting anchor cable construction anchor head which comprises a fixed seat, a detection mechanism and a feeding mechanism, the detection mechanism is arranged below the fixed seat, and the feeding mechanism is arranged below the detection mechanism. Through the arrangement of the camera, the information transmitter and the spraying water nozzle, in the using process, the camera monitors key parameters and conditions in the construction process in real time, meanwhile, the working state of the drill bit can be observed, important parameters such as the uniformity and the flow of spraying liquid can be detected, and through real-time monitoring and detection, the working efficiency is improved. The problems in construction can be found and corrected in time, the accuracy and quality of construction are ensured, if it is found that the flow guide cover is blocked, the spraying water nozzle can be opened, soil, mud and impurities in the flow guide cover are washed through high-pressure water flow sprayed out of the spraying water nozzle, meanwhile, the temperature of a construction area is reduced, and equipment is prevented from being overheated; and problems caused by friction heat are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor cables and anchor tools, in particular to an anchor head for construction of a rotary jet anchor cable. Background Art

[0002] The construction of rotary jet anchor cable means that after the pre-hole is formed, the anchor cable is sent into the hole depth required by the design, and then high-pressure grouting is gradually carried out from the bottom of the hole to the hole mouth to expand the diameter of the anchor body and increase the friction contact area of ​​the anchor cable to resist pull-out, thereby improving the pull-out resistance of the anchor cable and ensuring that the design value can be reached.

[0003] According to the search of China Utility Model Publication No.: CN216275657U, a rotary grouting anchor cable construction anchor head is disclosed, which relates to the anchor cable anchoring device technical field. The utility model includes a drill bit and a drill rod. The drill rod is a tubular structure. A spiral protrusion, a mounting groove, a sliding groove and a slot are arranged on the drill bit. A card slot is arranged in the slot. A slider and a scraper ring are arranged on the drill rod. An anchor cable is arranged in the slot. A cable head and a card are arranged on the anchor cable. The utility model makes the size of the drill rod smaller than the size of the drill bit, so that the drill rod can be quickly taken out after the drilling is completed, thereby improving work efficiency; a scraper ring is arranged on the side surface of the drill rod, so that the excess dust in the hole can be taken out when the drill rod is taken out, and the accumulation of dust can be avoided to cause uneven grouting; the drill rod is set as a tubular structure, so that the anchor cable can be sent into the hole after the drilling is completed later, so as to avoid the collapse in the hole so that the anchor cable cannot quickly reach the deepest point; and the card and the card slot are clamped together, so that the anchor cable can be fixed on the drill bit, and its stability can be increased during grouting.

[0004] However, when implementing the above technical solution, the following problems exist: since there may be particles or debris in the working environment, the spray holes are easily clogged, thereby affecting the uniformity of spraying and the construction effect. The clogged spray holes need to be cleaned and repaired, resulting in work interruptions and additional maintenance costs. Utility Model Content

[0005] The utility model provides a rotary spray anchor cable construction anchor head, which solves the problem that particles or debris may exist in the working environment, the spray hole is easily blocked, and thus the uniformity of spraying and the construction effect are affected.

[0006] The technical solution of the utility model is as follows: a rotary jet anchor cable construction anchor head, comprising a fixed seat, a detection mechanism and a feeding mechanism, an electronic valve is arranged above the fixed seat, a feed port is arranged inside the electronic valve, a detection mechanism is arranged below the fixed seat, the detection mechanism comprises a turntable, a fixed plate, a sensor, a displacement detector, a camera and an information transmitter, a drill rod is arranged at the bottom of the fixed seat, a spiral cutter is arranged on the surface of the drill rod, a drill bit is arranged at the bottom of the drill rod, a feeding mechanism is arranged below the detection mechanism, and the feeding mechanism comprises a protective cover, a guide cover, a water jet nozzle, a water pipe and a feeding pipe.

[0007] Preferably, an electronic valve is threadedly connected to the upper portion of the fixing seat, and a feed port is embedded in the interior of the electronic valve.

[0008] Preferably, the bottom of the fixing seat is threadedly connected to a turntable, the fixing seat forms a rotating structure with the fixing plate through the turntable, the bottom of the fixing plate is threadedly connected to a sensor, the bottom of the sensor is threadedly connected to a displacement detector, and the sensor is electrically connected to the displacement detector.

[0009] Preferably, a camera is embedded in the bottom of the fixing base, an information transmitter is threadedly connected to the bottom of the inner wall of the fixing base, and the sensor, camera and information transmitter are electrically connected.

[0010] Preferably, the bottom of the feed port is threadedly connected to a drill rod, a spiral cutter is welded on the surface of the drill rod, and a drill bit is welded on the bottom of the drill rod.

[0011] Preferably, four groups of protective covers are threadedly connected to the surface of the drill rod, and flow guide covers are welded on the tops of the four groups of protective covers.

[0012] Preferably, four groups of water jet nozzles are threadedly connected to the bottom of the deflector, water pipes are embedded in the bottoms of the four groups of water jet nozzles, and a feed pipe is embedded in the surface of the drill rod.

[0013] The working principle and beneficial effects of the utility model are:

[0014] By setting up cameras, information transmitters and water jet nozzles, during use, the camera monitors the key parameters and conditions of the construction process in real time, and can also observe the working status of the drill bit, detect important parameters such as the uniformity and flow rate of the spray liquid. Through real-time monitoring and detection, problems in the construction can be discovered and corrected in time to ensure the accuracy and quality of the construction. If the guide cover is found to be blocked, the water jet nozzle can be opened to flush the soil, mud and impurities inside the guide cover through the high-pressure water flow ejected by the water jet nozzle, thereby reducing the temperature of the construction area, preventing equipment overheating, and reducing problems caused by frictional heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall bottom structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the feeding mechanism of the utility model;

[0020] In the figure: 1. fixing seat; 2. electronic valve; 3. feed port; 4. detection mechanism; 401. turntable; 402. fixing plate; 403. sensor; 404. displacement detector; 405. camera; 406. information transmitter; 5. drill rod; 6. spiral tool; 7. drill bit; 8. feeding mechanism; 801. protective cover; 802. guide cover; 803. water jet nozzle; 804. water pipe; 805. feeding pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution for the construction of a rotary grouting anchor cable: it includes a fixed seat 1, a detection mechanism 4 and a feeding mechanism 8, an electronic valve 2 is arranged above the fixed seat 1, a feed port 3 is arranged inside the electronic valve 2, a detection mechanism 4 is arranged below the fixed seat 1, the detection mechanism 4 includes a turntable 401, a fixed plate 402, a sensor 403, a displacement detector 404, a camera 405 and an information transmitter 406, a drill rod 5 is arranged at the bottom of the fixed seat 1, a spiral cutter 6 is arranged on the surface of the drill rod 5, a drill bit 7 is arranged at the bottom of the drill rod 5, a feeding mechanism 8 is arranged below the detection mechanism 4, and the feeding mechanism 8 includes a protective cover 801, a guide cover 802, a water jet nozzle 803, a water pipe 804 and a feeding pipe 805.

[0023] When in use, first connect the feed pipe to the feed port 3, then send the device into the cleaned hole, and then turn on the device to rotate the drill rod 5 to drive the spiral cutter 6 to rotate. The spiral cutter 6 can effectively cut and crush the soil, turning it into particles that can be removed and eliminated. Then open the electronic valve 2 and start the slurry delivery. The slurry will flow through the feed port 3 through the feed pipe 805 and be sprayed around the hole. During spraying, since the guide cover 802 is conical, it can ensure that the spray liquid is accurately sprayed to the target area during the construction process, achieving uniform and precise spraying. During use, the camera 405 monitors the key parameters and conditions of the construction process in real time. At the same time, it can observe the working status of the drill bit 7 and detect important parameters such as the uniformity and flow rate of the spray liquid. Through real-time monitoring and inspection By measuring, problems in construction can be discovered and corrected in time to ensure the accuracy and quality of construction. If the guide cover 802 is found to be blocked, the water jet nozzle 803 can be opened, and the high-pressure water flow ejected by the water jet nozzle 803 can be used to flush the soil, mud and impurities inside the guide cover 802. At the same time, the temperature in the construction area can be reduced to prevent equipment overheating and reduce problems caused by frictional heat. If uneven spraying is found during the spraying process, the flow rate of the slurry can be controlled by controlling the size of the opening of the electronic valve 2 to ensure that the amount of slurry in each construction area is the same, so as to achieve uniform spraying. During spraying, the displacement detector 404 can be used to detect the distance of the anchor head displacement to determine whether the anchor rod or anchor cable has reached the designed anchoring length. If the embedding depth is insufficient, the anchoring effect may not be ideal, affecting the stability and safety of the structure.

[0024] Specifically, an electronic valve 2 is threadedly connected to the top of the fixed seat 1, and a feed port 3 is embedded in the interior of the electronic valve 2. If uneven spraying is found during the spraying process, the flow rate of the slurry can be controlled by controlling the opening size of the electronic valve 2 to ensure that the amount of slurry in each construction area is the same, thereby achieving uniform spraying.

[0025] Specifically, the bottom thread of the fixing seat 1 is connected to a turntable 401, and the fixing seat 1 forms a rotating structure with the fixing plate 402 through the turntable 401. The bottom thread of the fixing plate 402 is connected to a sensor 403, and the bottom thread of the sensor 403 is connected to a displacement detector 404. The sensor 403 is electrically connected to the displacement detector 404. During spraying, the displacement detector 404 can detect the displacement distance of the anchor head to determine whether the anchor rod or anchor cable reaches the designed anchoring length. If the embedding depth is insufficient, the anchoring effect may not be ideal, affecting the stability and safety of the structure.

[0026] Specifically, a camera 405 is embedded in the bottom of the fixing base 1, and an information transmitter 406 is threadedly connected to the bottom of the inner wall of the fixing base 1. The sensor 403, the camera 405 and the information transmitter 406 are electrically connected. During use, the camera 405 monitors the key parameters and conditions of the construction process in real time, and can also observe the working status of the drill bit 7, detect important parameters such as the uniformity and flow rate of the spray, and through real-time monitoring and detection, problems in the construction can be discovered and corrected in time to ensure the accuracy and quality of the construction.

[0027] Specifically, the bottom of the feed port 3 is threadedly connected to a drill rod 5, a spiral cutter 6 is welded on the surface of the drill rod 5, and a drill bit 7 is welded on the bottom of the drill rod 5. The device is sent into the cleaned hole, and after being sent to the position where slurry needs to be poured, the device is turned on to rotate the drill rod 5 to drive the spiral cutter 6 to rotate. The spiral cutter 6 can effectively cut and crush the soil, turning it into particles that can be removed and discharged.

[0028] Specifically, the surface of the drill rod 5 is threadedly connected with four groups of protective covers 801, and the tops of the four groups of protective covers 801 are welded with guide covers 802. During spraying, since the guide covers 802 are conical in shape, it can ensure that the spray liquid is accurately sprayed to the target area during the construction process, achieving uniform and accurate spraying.

[0029] Specifically, the bottom of the guide cover 802 is threadedly connected with four groups of water jet nozzles 803, the bottom of the four groups of water jet nozzles 803 is embedded with water pipes 804, and the surface of the drill rod 5 is embedded with a feeding pipe 805. If the guide cover 802 is found to be blocked, the water jet nozzles 803 can be opened, and the high-pressure water flow ejected by the water jet nozzles 803 can be used to flush the soil, mud and impurities inside the guide cover 802, while reducing the temperature of the construction area, preventing equipment overheating, and reducing problems caused by frictional heat.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary grouting anchor cable construction anchor head, comprising a fixing seat (1), a detection mechanism (4) and a feeding mechanism (8), characterized in that: An electronic valve (2) is arranged above the fixing seat (1), and a feed port (3) is arranged inside the electronic valve (2); a detection mechanism (4) is arranged below the fixing seat (1), and the detection mechanism (4) comprises a rotating disk (401), a fixing disk (402), a sensor (403), a displacement detector (404), a camera (405) and an information transmitter (406); a drill rod (5) is arranged at the bottom of the fixing seat (1), a spiral cutter (6) is arranged on the surface of the drill rod (5), and a drill bit (7) is arranged at the bottom of the drill rod (5); a feeding mechanism (8) is arranged below the detection mechanism (4), and the feeding mechanism (8) comprises a protective cover (801), a flow guide cover (802), a water jet nozzle (803), a water pipe (804) and a feeding pipe (805).

2. The anchor head for rotary grouting anchor cable construction according to claim 1, characterized in that: An electronic valve (2) is threadedly connected to the upper portion of the fixing seat (1), and a feed port (3) is embedded in the interior of the electronic valve (2).

3. The anchor head for rotary grouting anchor cable construction according to claim 1, characterized in that: The bottom of the fixed seat (1) is threadedly connected to a rotating disk (401); the fixed seat (1) forms a rotating structure with the rotating disk (401) and the fixed disk (402); the bottom of the fixed disk (402) is threadedly connected to a sensor (403); the bottom of the sensor (403) is threadedly connected to a displacement detector (404); the sensor (403) is electrically connected to the displacement detector (404).

4. The anchor head for rotary grouting anchor cable construction according to claim 1, characterized in that: A camera (405) is embedded in the bottom of the fixing base (1), an information transmitter (406) is threadedly connected to the bottom of the inner wall of the fixing base (1), and the sensor (403), the camera (405) and the information transmitter (406) are electrically connected.

5. The anchor head for rotary grouting anchor cable construction according to claim 1, characterized in that: The bottom of the feed port (3) is threadedly connected to a drill rod (5), a spiral cutter (6) is welded to the surface of the drill rod (5), and a drill bit (7) is welded to the bottom of the drill rod (5).

6. The anchor head for rotary grouting anchor cable construction according to claim 1, characterized in that: Four groups of protective covers (801) are threadedly connected to the surface of the drill rod (5), and flow guide covers (802) are welded to the tops of the four groups of protective covers (801).

7. The anchor head for jet grouting anchor cable construction according to claim 1, characterized in that: The bottom of the deflector (802) is threadedly connected with four groups of water jet nozzles (803), the bottoms of the four groups of water jet nozzles (803) are embedded with water pipes (804), and the surface of the drill rod (5) is embedded with a feeding pipe (805).

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