Quick connecting device and anchor bolt working arm

Abstract

A quick connecting device (4) and an anchor bolt working arm. The quick connecting device (4) comprises: a sleeve base (42) used as a structural support and having a first end connected to a propulsion mechanism; a guide connecting base (43) arranged at a second end of the sleeve base (42), a first end surface of the guide connecting base (43) being in sliding fit with a second end surface of the sleeve base (42), and the second end of the guide connecting base (43) being provided with a guide structure mated with a water expansion anchor bolt (1); and tension members (45) uniformly arranged in the circumferential direction of the sleeve base (42), wherein a preset angle is formed between the tension members (45) and the axis of the sleeve base (42), and the tension members (45) are respectively connected to the sleeve base (42) and the guide connecting base (43), so that the guide connecting base (43) is axially positioned relative to the sleeve base (42) and is used for driving the guide connecting base (43) generating the radial offset to reset.

Description

Quick docking device and anchor working arm

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 11, 2024, with application number 202410043078.5 and application name “Quick docking device and anchor working arm”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of anchor rod support operations, and in particular to a quick docking device and an anchor rod working arm. Background Art

[0003] In the offshore anchor support operation, anchor installation is currently mainly carried out by lifting hanging basket in combination with manual installation, and a small amount of semi-mechanized construction is achieved by simple welded threaded connecting rods. Water-expanding anchor rods are hydraulic expansion anchor rods. The current construction process is: manually insert the water-expanding anchor rod into the anchor rod hole in the support area, and then connect the handheld anchor rod connecting device with the tail end of the water-expanding anchor rod. The anchor rod connecting device is connected to the high-pressure water pump station, and the water-expanding anchor rod is pressurized by high-pressure water until the water-expanding anchor rod is deformed and expanded and anchored to the rock wall. After the high-pressure water is depressurized, the handheld connecting device is pulled out to complete the water-expanding anchor rod anchoring operation. The current construction method has at least the following problems: the rock mass in the area requiring anchor support is too small. The rock wall is fragile and unstable, and manual labor working in the anchoring area poses a safety hazard. During the process of filling and pressurizing the water-expanding anchor rods, the water-expanding anchor rods expand and squeeze the rock wall, which increases the risk of rockfall or even landslides. Manual labor is also required in the support area, and both the water-expanding anchor rods and handheld anchor rod connection devices need to be moved manually, and even hoisted and supported on a platform. This process is complicated, labor-intensive, and inefficient. To ensure watertight pressure relief and controllable expansion speed and pressure, the water-expanding anchor rods are currently manually installed into the anchor rod holes and then connected to the water-expanding anchor rods using a handheld connection device. Human labor working in dangerous areas is labor-intensive and inefficient, further restricting the promotion and application of water-expanding anchor rods.

[0004] In the patent technical solution disclosed in publication number CN101160451B, a device for installing a pressure liquid expansion anchor and a method for installing an anchor are disclosed. The distal end of the device has a chuck device that can be connected to the expansion anchor, and the proximal end has a clamping portion that is connected to the drilling machine propulsion mechanism. Between the proximal end and the original end is a bending device, which consists of two axially extending elastic components and a connecting rod, and can achieve relative parallel displacement of the proximal end and the distal end in the radial direction. The structure of the connecting device of this technical solution is relatively complex. The dead weight of the distal component will cause the bending device to droop naturally in the initial state, so that the axial offset range of the capture anchor is small, and the device has a long axial extension size. The bending device in the middle may be hit by falling rocks, and the complex structural form also makes it easy to be smashed.

[0005] For example, patent CN210460718U discloses a quick-connect device for hollow grouting anchor rods. This device optimizes the welded seat at the tail end of the hollow grouting anchor rod, which was originally welded, into a threaded connection seat. The front end of the threaded connection seat is threadedly connected to the tail end of the hollow grouting anchor rod via a thread. A swivel joint is provided at the rear end of the threaded connection seat, which is connected to the grouting pipeline via a quick connector, thus realizing a detachable quick-connect device for the hollow anchor rod and the grouting pipeline. This device still requires manual installation of the hollow grouting anchor rod in the support area, and does not solve the problems of mechanized construction and the need for unmanned operation in dangerous support areas. Summary of the Invention

[0006] The present invention provides a quick docking device and an anchor rod working arm to solve the technical problems in the prior art that water-expanding anchor rods require manual operation in support dangerous areas, resulting in high safety risks and great application difficulties.

[0007] The technical solution adopted in the present invention is as follows:

[0008] A quick connection device is provided on a propulsion mechanism of an anchor working arm to connect with a water-expandable anchor, the quick connection device comprising:

[0009] a sleeve base, used as a structural support, with a first end used for connection with the propulsion mechanism;

[0010] A guide connecting seat, configured to be disposed at the second end of the sleeve base, wherein a first end surface of the guide connecting seat is slidably engaged with a second end surface of the sleeve base, and the second end of the guide connecting seat has a guide structure for engaging with the water-expanding anchor rod;

[0011] The tension piece is evenly distributed in the circumference of the sleeve base and forms a preset angle with the axis of the sleeve base, and is used to connect the sleeve base and the guide connecting seat respectively so that the guide connecting seat is axially positioned relative to the sleeve base and is used to drive the guide connecting seat that has generated radial offset to reset.

[0012] As a further improvement of the above technical solution, the sleeve base includes a base plate, a connecting member arranged on the first side of the base plate, and a cylinder arranged on the second side of the base plate. The base plate and the first end of the guide connecting seat are respectively provided with angle codes for connecting with the tension member.

[0013] As a further improvement of the above technical solution, the cylinder is provided with an installation window that matches the distribution position of the tension member and is used for installing the tension member.

[0014] As a further improvement of the above technical solution, an oil groove is provided on the end surface of the cylinder barrel facing the guide connecting seat, and the cylinder barrel is provided with an oil guide structure connected to the oil groove for guiding the lubricating oil to between the guide connecting seat and the cylinder barrel.

[0015] As a further improvement of the above technical solution, the oil guide structure includes an oil injection channel opened in the cylinder, the first end of the oil injection channel is located on the side wall of the cylinder and an oil nozzle is provided at the first end of the oil injection channel, and the second end of the oil injection channel is connected to the oil tank.

[0016] As a further improvement of the above technical solution, the first end of the guide connecting seat and / or the second end of the sleeve base are provided with a matching structure for limiting the radial offset range of the guide connecting seat relative to the sleeve base.

[0017] As a further improvement of the above technical solution, the guide connecting seat includes a slide plate for cooperating with the second end face of the sleeve base and a guide sleeve arranged on the slide plate, and the guide sleeve is provided with a water injection joint for cooperating with the water expansion anchor rod.

[0018] As a further improvement of the above technical solution, the tension member is a tension spring with traction hooks at both ends.

[0019] According to another aspect of the present invention, there is also provided an anchor working arm, to which any of the above-mentioned quick connection devices is applied.

[0020] As a further improvement of the above technical solution, the anchor rod working arm includes a propulsion mechanism, a propulsion beam connected to the propulsion mechanism, an anchor rod library arranged on one side of the propulsion beam, and a clamping mechanism installed on the propulsion beam.

[0021] The present invention has the following beneficial effects:

[0022] The sleeve base in this quick connection device is used to connect with the propulsion mechanism of the anchor working arm, and the guide connection seat is provided with a guide structure to capture the tail end of the water-expanding anchor rod in a larger radial range, so as to more smoothly capture the tail end of the water-expanding anchor rod that produces radial deviation. The guide connection seat is pulled and pressed against the second end of the sleeve base by the tension piece, and the tension piece and the sleeve base are arranged at a preset angle, so that the quick connection device can transmit the axial thrust of the propulsion device and enable the guide connection seat to slide radially within a certain range relative to the sleeve base. After the guide sleeve captures the tail end of the water-expanding anchor rod under the axial propulsion of the propulsion device, it moves toward the direction of the water-expanding anchor rod, and the matching position of the water-expanding anchor rod and the guide structure gradually approaches the center of the guide structure. Under the radial reaction force of the water-expanding anchor rod, the guide connection seat produces a passive radial offset relative to the sleeve base to realize water expansion The radial passive compensation between the anchor rod and the propulsion mechanism compensates for the radial deviation between the water-expanding anchor rod and the propulsion device, avoids the radial deviation of the water-expanding anchor rod affecting the sealing, and facilitates the anchor rod working arm to realize remote automatic installation of the water-expanding anchor rod, avoids manual operation, reduces manpower labor and improves construction efficiency; the tension member and the sleeve base are arranged at a preset angle, and when the guide connecting seat is not docked with the water-expanding anchor rod, it can automatically return to the center under the tension provided by the tension member, so that its position tends to the center line of the sleeve base, so that the guide structure can more smoothly capture the tail end of the water-expanding anchor rod that has produced radial deviation during subsequent docking; the overall structure of this quick docking device is streamlined, and the anchor rod working arm using this quick docking device has simple movements, which realizes the mechanized construction operation of the water-expanding anchor rod, reduces labor cost and work intensity, and greatly improves safety and operation efficiency.

[0023] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] In the attached figure:

[0026] FIG1 is a schematic structural diagram of an anchor working arm according to a preferred embodiment of the present invention;

[0027] FIG2 is a schematic structural diagram of a quick connection device according to a preferred embodiment of the present invention;

[0028] FIG3 is a schematic structural diagram of a sleeve base according to a preferred embodiment of the present invention;

[0029] 1. Water-expanding anchor rod; 2. Clamping mechanism; 3. Propulsion beam; 4. Quick connection device; 41. Connecting piece; 42. Sleeve base; 421. Bottom plate; 4211. First circular boss; 422. Cylinder barrel; 423. Oil nozzle; 424. Oil tank; 43. Guide connecting seat; 431. Slide plate; 4311. Second circular boss; 432. Guide sleeve; 433. Water injection joint; 434. Mountain seal; 44. Angle code; 45. Tension piece; 5. Anchor rod depot; 6. Propulsion device. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] 1 to 3 , a preferred embodiment of the present invention provides a quick connection device 4 for being provided on a propulsion mechanism of an anchor working arm to connect with a water-expandable anchor 1 . The quick connection device 4 includes:

[0032] a sleeve base 42, used as a structural support, with a first end for connection to the propulsion mechanism;

[0033] The guide connecting seat 43 is used to be arranged at the second end of the sleeve base 42. The first end surface of the guide connecting seat 43 is slidably matched with the second end surface of the sleeve base 42. The second end of the guide connecting seat 43 has a guiding structure for cooperating with the water-expanding anchor rod 1;

[0034] The tension member 45 is evenly distributed around the circumference of the sleeve base 42 and forms a preset angle with the axis of the sleeve base 42. It is used to connect the sleeve base 42 and the guide connecting seat 43 respectively so that the guide connecting seat 43 is axially positioned relative to the sleeve base 42 and to drive the guide connecting seat 43 that has generated radial displacement to reset.

[0035] The guide structure is a conical expansion provided at the second end of the guide connection seat 43, that is, the inner diameter of the second end of the guide connection seat 43 gradually decreases;

[0036] It can be understood that the sleeve base 42 in the quick connection device 4 is used to connect with the propulsion mechanism of the anchor working arm, and the guide connection seat 43 is provided with a guide structure to capture the tail end of the water-expanding anchor rod 1 in a larger radial range, and more smoothly capture the tail end of the water-expanding anchor rod 1 that produces radial deviation. The guide connection seat 43 is pulled and pressed against the second end of the sleeve base 42 by the tension member 45, and the tension member 45 and the sleeve base 42 are arranged at a preset angle, so that the quick connection device 4 can transmit the axial thrust of the propulsion device 6, and enable the guide connection seat 43 to slide radially within a certain range relative to the sleeve base 42. After the guide sleeve 432 captures the tail end of the water-expanding anchor rod 1, it moves toward the water-expanding anchor rod 1 under the axial propulsion of the propulsion device 6, and the matching position of the water-expanding anchor rod 1 and the guide structure gradually approaches the center of the guide structure. Under the radial reaction force of the water-expanding anchor rod 1, the guide connection seat 43 produces relative to the sleeve base 42 The invention relates to a quick docking device for automatically and remotely installing the water-expanding anchor rod 1, and a quick docking device for automatically and remotely installing the water-expanding anchor rod 1, so as to avoid manual operation and improve construction efficiency. The pull member 45 and the sleeve base 42 are arranged at a preset angle. When the guide connecting seat 43 is not docked with the water-expanding anchor rod 1, it can automatically return to the center under the tension provided by the pull member 45, so that its position tends to the center line of the sleeve base 42, so that the guide structure can more smoothly capture the tail end of the water-expanding anchor rod 1 that has generated radial deviation during subsequent docking. The overall structure of the quick docking device is streamlined, and the action of the anchor working arm using the quick docking device is simple, so as to realize the mechanized construction operation of the water-expanding anchor rod 1, reduce the labor cost and work intensity, and greatly improve the safety and operation efficiency.

[0037] In this embodiment, the sleeve base 42 includes a base plate 421, a connector 41 disposed on a first side of the base plate 421, and a cylinder 422 disposed on a second side of the base plate 421. The base plate 421 and the first end of the guide connector 43 are respectively provided with an angle bracket 44 for connecting to the tension member 45. The connector 41 is used to securely connect the base plate 421 to the propulsion mechanism.

[0038] The tension member 45 is a tension spring with traction hooks at both ends. The number of tension members 45 is set according to actual needs. In this embodiment, four tension members 45 are evenly distributed around the circumference. The traction hooks at both ends are respectively connected to the angle brackets 44 on the bottom plate 421 and the angle brackets 44 on the guide connecting seat 43.

[0039] It should be noted that the tension member 45 is arranged in the cylinder 422, with the sleeve base 42 as the main body. The cylinder 422 effectively protects the relatively weak tension spring to avoid damage to the device caused by factors such as falling rocks, making the overall structure of the device streamlined, stable, and more reliable to use.

[0040] Furthermore, the cylinder 422 is provided with an installation window that matches the distribution position of the tension member 45 for installing the tension member 45. During installation, after the tension spring passes through the installation window, the traction hooks at both ends are respectively connected to the angle code 44 on the base plate 421 and the angle code 44 of the guide connecting seat 43, which is convenient for assembly.

[0041] In this embodiment, an oil groove 424 is formed on the end surface of the cylinder 422 facing the guide connecting seat 43. The cylinder 422 is provided with an oil guide structure connected to the oil groove 424 for guiding lubricating oil between the guide connecting seat 43 and the cylinder 422 to reduce friction between the guide connecting seat 43 and the sleeve base 42, thereby reducing wear between the mating end surfaces of the two.

[0042] Specifically, the oil guide structure includes an oil injection channel opened in the cylinder 422. The first end of the oil injection channel is located on the side wall of the cylinder 422 and an oil nozzle 423 is provided at the first end of the oil injection channel to connect with the external control oil circuit. The second end of the oil injection channel is connected to the oil groove 424. The supply of lubricating oil is controlled by the cooperation of the oil groove 424, the oil injection channel and the control oil circuit, thereby ensuring the lubrication of the mating surface between the guide connecting seat 43 and the sleeve base 42 and reducing wear.

[0043] In this embodiment, the first end of the guide connecting seat 43 and / or the second end of the sleeve base 42 are provided with a matching structure for limiting the radial offset range of the guide connecting seat 43 relative to the sleeve base 42, preventing the guide connecting seat 43 from slipping under force, and ensuring the reliability of the device.

[0044] In this embodiment, the guide connection seat 43 includes a slide plate 431 for cooperating with the second end surface of the sleeve base 42 and a guide sleeve 432 provided on the slide plate 431. The guide sleeve 432 is provided with a water injection joint 433 for cooperating with the water-expanding anchor rod 1. It should be understood that the guide sleeve 432 is provided with a mountain-shaped seal 434 cooperating with the water injection joint 433. In other embodiments, a common O-ring seal may also be provided. Under the propulsion of the propulsion mechanism, the quick connection device 4 moves toward the water-expanding anchor rod 1, and the tail end of the water-expanding anchor rod 1 is gradually inserted into the guide sleeve 432 until the fit is completed. The mountain-shaped seal 434 realizes the sealing between the water-expanding anchor rod 1 and the guide sleeve 432. The water injection joint 433 is matched and docked with the water-expanding anchor rod 1 to perform high-pressure water injection in subsequent processes.

[0045] Specifically, the slide plate 431 and the guide sleeve 432 are provided separately, and can be made of a low-density, high-rigidity wear-resistant material such as nylon, resin, or polytetrafluoroethylene, thereby reducing the radial friction between the guide connecting seat 43 and the sleeve base 42, while reducing the overall weight of the guide connecting seat 43, thereby reducing the tension requirement of the tension member 45;

[0046] The second circular boss 4311 is formed on the slide plate 431, and the outer diameter of the second circular boss 4311 is smaller than the inner diameter of the second end of the cylinder 422, which can limit the radial deviation range of the guide connecting seat 43 and prevent the guide connecting seat 43 from slipping off. On the other hand, the angle code 44 of the bottom plate 421 is fixed to the surface edge of the first circular boss 4211 by screws, and the angle code 44 of the guide connecting seat 43 is fixed to the surface edge of the second circular boss 4311 by screws, and the connection end of the angle code 44 on the first circular boss 4211 is arranged toward the outer ring, and the angle code 44 of the second circular boss 4311 is arranged toward the center, so as to ensure that the tension member 45 is at a certain angle to the axial direction, so as to provide axial tension and radial traction to drive the radially deviated guide connecting seat 43 back to the center.

[0047] Among them, the screw used to fix the angle code 44 on the slide plate 431 is threadedly connected to the guide sleeve 432 by passing through the slide plate 431, and at the same time fixes the guide sleeve 432. In order to facilitate installation, the surface of the slide plate 431 is provided with a circular groove that matches the outer diameter of the end of the guide sleeve 432 to facilitate the assembly positioning of the guide sleeve 432.

[0048] On the other hand, this embodiment further provides an anchor working arm, which is applied with the above-mentioned quick connection device 4. The anchor working arm includes a propulsion mechanism, a propulsion beam 3 connected to the propulsion mechanism, an anchor rod storage 5 provided on one side of the propulsion beam 3, and a clamping mechanism 2 installed on the propulsion beam 3; wherein the propulsion mechanism is implemented with reference to the propulsion device 6 of the anchor working arm in the prior art;

[0049] During operation, the propulsion beam 3 is adjusted to the target working position, the clamping mechanism 2 grabs the water-expanding anchor 1 from the anchor library 5, clamps it and rotates to a position matching the propulsion mechanism, and the propulsion mechanism propels the quick connection device 4 to quickly dock with the water-expanding anchor 1. The clamping force of the clamping mechanism 2 is adjusted from heavy clamping to light clamping, and the propulsion mechanism continues to propel, transmitting axial force through the quick connection device 4, so that the water-expanding anchor 1 is inserted into the anchor hole on the rock wall. Water is injected into the water-expanding anchor 1 through the water injection joint 433 to increase pressure, so that the water-expanding anchor 1 is deformed and anchored to the rock wall. The mountain seal 434 ensures that the docking position is watertight and pressure-relieved.

[0050] Among them, multiple clamping mechanisms 2 are evenly arranged along the axial direction of the propulsion beam 3. When the propulsion mechanism pushes the water-expanding anchor rod 1 through the quick connection device 4, the clamping jaws release the water-expanding anchor rod 1 in turn to avoid it until the water-expanding anchor rod 1 is completely pushed into the anchor rod hole on the rock wall.

[0051] The anchor rod working arm can realize the rapid and automatic docking of the propulsion device 6 and the water-expanding anchor rod 1 through the quick connection device 4, passively compensate for the radial deviation between the water-expanding anchor rod 1 and the propulsion device 6, reduce the wear caused by the repeated plugging and unplugging of the seal in the guide sleeve 432 and the water-expanding anchor rod 1, and ensure the stability of the anchoring operation of the water-expanding anchor rod 1; realize the remote automatic installation of the water-expanding anchor rod, avoid manual operation in dangerous areas, reduce human labor intensity, and improve the installation and construction efficiency of the water-expanding anchor rod; the overall structure of the device is simple, and the action of the anchor rod working arm is concise, which realizes the mechanized construction operation of the water-expanding anchor rod 1, reduces labor costs and labor intensity, and improves construction efficiency.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A quick connection device (4), characterized in that, A quick connection device (4) for being arranged on a propulsion mechanism of an anchor rod working arm to connect with a water swelling anchor rod (1), the quick connection device (4) comprising: A sleeve base (42) for serving as a structural support, with the first end for connecting with the propulsion mechanism; A guiding connection seat (43) for being arranged at the second end of the sleeve base (42), the end face of the first end of the guiding connection seat (43) being in sliding fit with the end face of the second end of the sleeve base (42), and the second end of the guiding connection seat (43) having a guiding structure for cooperating with the water swelling anchor rod (1); Tension members (45) uniformly arranged circumferentially of the sleeve base (42) and at a preset angle with respect to the axis of the sleeve base (42), for respectively connecting the sleeve base (42) and the guiding connection seat (43) to axially position the guiding connection seat (43) relative to the sleeve base (42) and for driving the guiding connection seat (43) with radial offset to reset.

2. The quick connection device (4) according to claim 1, characterized in that, The sleeve base (42) includes a bottom plate (421), a connecting member (41) arranged on the first side of the bottom plate (421), and a cylinder barrel (422) arranged on the second side of the bottom plate (421), and angle codes (44) for connecting with the tension members (45) are respectively arranged on the bottom plate (421) and the first end of the guiding connection seat (43).

3. The quick connection device (4) according to claim 2, characterized in that, The cylinder barrel (422) is provided with mounting windows matching the distribution positions of the tension members (45) for mounting the tension members (45).

4. The quick connection device (4) according to claim 2, characterized in that, An oil groove (424) is formed in the end face of the cylinder barrel (422) facing the guiding connection seat (43), and the cylinder barrel (422) is provided with an oil guiding structure communicating with the oil groove (424) for guiding lubricating oil between the guiding connection seat (43) and the cylinder barrel (422).

5. The quick connection device (4) according to claim 4, characterized in that, The oil guiding structure includes an oil injection channel formed in the cylinder barrel (422), the first end of the oil injection channel is located on the side wall of the cylinder barrel (422) and an oil nozzle (423) is arranged at the first end of the oil injection channel, and the second end of the oil injection channel communicates with the oil groove (424).

6. The quick connection device (4) according to claim 1, characterized in that, A matching structure is arranged at the first end of the guiding connection seat (43) and / or the second end of the sleeve base (42) for limiting the radial offset range of the guiding connection seat (43) relative to the sleeve base (42).

7. The quick connection device (4) according to claim 1, characterized in that, The guiding connection seat (43) includes a sliding plate (431) for cooperating with the end face of the second end of the sleeve base (42) and a guiding sleeve (432) arranged on the sliding plate (431), and a water injection joint (433) for cooperating with the water swelling anchor rod (1) is arranged on the guiding sleeve (432).

8. The quick connection device (4) according to any one of claims 1-7, characterized in that, The tension members (45) are tension springs having traction hooks at both ends.

9. An anchor rod working arm, characterized in that, The quick connection device (4) according to any one of claims 1-8 is applied.

10. The working arm of the anchor rod according to claim 9, characterized in that, The anchor rod working arm includes a propulsion mechanism, a propulsion beam (3) connected to the propulsion mechanism, an anchor rod library (5) arranged on one side of the propulsion beam (3), and a jaw mechanism (2) mounted on the propulsion beam (3).

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