Anchoring rod pallet with easy angle adjustment and convenient carrying

Abstract

The present application relates to a kind of angle-adjustable anchor rod tray for easy handling.The technical scheme is: the two ends of the stud shaft (15) of anchor rod fixing plate (2) are symmetrically installed in the stud shaft mounting seat (11) of tray fixing plate (1) by stud shaft fixing nut (7), anchor rod (3) is sequentially threaded through the anchor rod through hole (13) of anchor rod fixing plate (2) and the anchor rod strip through hole (10) of tray fixing plate (1) and anchored connection with the anchor rod hole already drilled in rock mass;The lower end of the two hinge bolts (4) is provided with a shaft hole in the radial direction, and the lower end of the two hinge bolts (4) is movably connected with the hinge bolt shaft (6) through the shaft hole and the corresponding bolt strip through hole (12).Two hinge bolts (4) are provided with angle adjusting nut (5), and angle adjusting nut (5) is tightly attached to the lower plane of bolt strip through hole (12) of anchor rod fixing plate (2).The present application is not only easy to adjust angle, convenient to carry, simple in structure, low in cost and easy to operate, but also has good anchoring effect, and is suitable for rock-soil roadway, tunnel supporting field.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of anchor rod pallets, and particularly relates to an anchor rod pallet with adjustable angle and convenient to carry. BACKGROUND

[0002] When the mine roadway and tunnel are supported by anchor rods, the anchor rod hole is not perpendicular to the rock stratum surface, so that the anchor rod pallet cannot be flatly and tightly attached to the roof rock stratum surface, the anchor rod pallet cannot effectively transmit the locking torque generated by the nut, the effective torque of the anchor rod is very low, the initial anchoring force of the anchor rod cannot meet the requirements, and the separation damage is prone to occur at the position. The pallet is generally installed on the rock stratum surface perpendicularly to the anchor rod. Since the anchor rod hole is not perpendicular to the rock stratum surface, the end of the pallet is in point-line contact with the rock stratum surface, and the contact position of the anchor rod body after installation is also curved and deformed. The anchor rod thread is prone to be damaged during installation of the anchor rod, and the anchor rod is prone to break at the thread.

[0003] When the mine roadway and tunnel are supported by anchor rods in the deep part, the pallet needs to be installed in place to ensure sufficient support force. However, it is difficult to ensure that the anchor rod hole is perpendicular to the rock stratum surface in the actual construction process, and even the angle deviation is too large. Especially, the anchor rod and the perpendicular line of the rock stratum surface have a certain angle for some specific roadway design. These two reasons lead to a large difficulty in installation of the pallet. Therefore, it is concerned by engineering and technical personnel to develop a pallet with strong adaptability, solve the construction problem and ensure the installation effect.

[0004] A document (Zhang Jun. Development and application of mine disc-shaped special-shaped anchor rod pallet [J]. Coal Engineering, 2009 (07) 46-47) shows that the mine disc-shaped special-shaped anchor rod pallet has the following shortcomings: 1. The angle between the anchor rod hole and the perpendicular line of the rock stratum needs to be measured in advance before the pallet is installed, and a pallet suitable for the inclination angle needs to be specially customized, which slows down the construction progress and increases the workload; 2. If the mine disc-shaped special-shaped anchor rod pallet is used for installation during on-site construction, a large number of mine disc-shaped special-shaped anchor rod pallets need to be purchased in advance, so that suitable mine disc-shaped special-shaped anchor rod pallets are selected during construction. This not only increases the difficulty of construction, reduces the construction efficiency, but also increases unnecessary costs.

[0005] The existing "a foundation pit anchor rod pedestal with adjustable angle" (CN209760255U) patent technology has advantages, but also has the following shortcomings: 1. The channel steel increases the cost, is relatively bulky, is inconvenient to carry, occupies the space of the roadway and tunnel which is originally not enough, and affects normal production. The existence of the channel steel makes the anchor rod pass through the channel steel and then pass through the rock layer, which is low in visualization and increases the difficulty of construction. 2. The first inclined iron and the second inclined iron can adjust the angle, but the angle needs to be adjusted together every time, which is difficult to adjust to the appropriate angle and increases the difficulty of construction. 3. The foundation pit anchor rod pedestal has many parts, which is difficult for the construction personnel of the roadway or tunnel to ensure the correct installation of the parts, and the installation is difficult and costly.

[0006] The existing "a special anchor rod self-adjusting multifunctional composite tray" (CN217558363U) patent technology has known positive effects. However, it also has the following shortcomings: 1. The tray frame, spherical convex pad, and wedge-shaped fastening sleeve have many parts, and multiple parts are needed to cooperate when the angle is adjusted, which makes it difficult to adjust the angle. 2. When the rock layer surface perpendicular and the anchor rod hole angle are too large, the spherical convex pad and the tray frame are unevenly stressed, which affects the anchoring effect.

[0007] Therefore, the existing technology has the following technical defects: the anchor rod tray structure is complex, inconvenient to carry, difficult to adjust the angle, difficult to construct, low in cost, and the anchoring effect needs to be improved. SUMMARY

[0008] The present application aims to overcome the technical defects of the prior art, and the purpose is to provide an anchor rod tray which is easy to adjust the angle and convenient to carry. The anchor rod tray is not only easy to adjust the angle, convenient to carry, simple in structure, low in cost, and easy to operate, but also has good anchoring effect and long service life, and is suitable for the field of rock and soil roadway and tunnel support.

[0009] To achieve the above purpose, the technical scheme adopted by the present application is:

[0010] The anchor rod tray easy to adjust the angle and convenient to carry comprises a tray fixing plate, an anchor rod fixing plate, an anchor rod, and a universal bolt.

[0011] The tray fixing plate is a square plate, double-headed bolt shaft mounting seats are symmetrically arranged at two right angles near the top of the square plate, an anchor rod strip-shaped through hole is vertically arranged at the middle position near the lower edge of the square plate, and rectangular through holes are symmetrically arranged on both sides of the anchor rod strip-shaped through hole; an axle seat fixing hole is symmetrically arranged on both sides of the lower part of each rectangular through hole, a universal bolt bearing seat is fixedly arranged in the axle seat fixing hole, and both ends of a universal bolt shaft are movably arranged in the universal bolt bearing seat.

[0012] The anchor rod fixing plate is a rectangular flat plate, a shaft sleeve is fixed horizontally at the upper end edge of the rectangular flat plate, a double-headed bolt shaft is fixedly installed in the shaft sleeve, and the two ends of the double-headed bolt shaft symmetrically extend out of the shaft sleeve; a conical hole is arranged at the center of the back of the rectangular flat plate, the large diameter of the conical hole is located at the back of the rectangular flat plate; a conical table is arranged on the front of the rectangular flat plate, the center line of the conical table is in line with the center line of the conical hole; a bolt strip-shaped hole is symmetrically arranged near the lower part of the rectangular flat plate, and the center line of the bolt strip-shaped hole is tangent to the outer circle of the conical table.

[0013] The two ends of the double-headed bolt shaft of the anchor rod fixing plate are symmetrically installed in the double-headed bolt shaft mounting seat of the tray fixing plate through bolt shaft fixing nuts; the anchor rod is sequentially connected with the anchor rod hole in the rock stratum through the anchor rod hole of the anchor rod fixing plate and the anchor rod strip-shaped hole of the tray fixing plate.

[0014] The lower ends of the two hinge bolts are provided with shaft holes in the radial direction, the lower ends of the two hinge bolts pass through the corresponding bolt strip-shaped holes and are movably connected with the hinge bolt shafts through the shaft holes; the two hinge bolts are provided with angle adjusting nuts, and the angle adjusting nuts are tightly attached to the lower flat surface of the bolt strip-shaped hole of the anchor rod fixing plate.

[0015] The large diameter d1 of the conical hole is 3-4 times the small diameter d3 of the conical hole;

[0016] The small diameter d3 of the conical hole is the same as the nominal size of the anchor rod diameter d;

[0017] The depth s3 of the conical hole is 1.8-3 times the thickness s2 of the anchor rod fixing plate.

[0018] The large diameter d2 of the conical table is 1.2-2 times the large diameter d1 of the conical hole;

[0019] The small diameter d4 of the conical table is 0.4-0.55 times the large diameter d2 of the conical table.

[0020] The side length L2 of the anchor rod fixing plate is equal to the side length L1 of the tray fixing plate;

[0021] The height H2 of the anchor rod fixing plate is 0.73-0.77 times the height H1 of the tray fixing plate.

[0022] The width b of the rectangular hole is 0.08-0.12 times the length L1 of the tray fixing plate, the length L2 of the rectangular hole is 0.16-0.18 times the height H1 of the tray fixing plate, and the width b of the rectangular hole is equal to the thickness s1 of the tray fixing plate.

[0023] The thickness s1 of the tray fixing plate is 0.08-0.12 times the side length L1 of the tray fixing plate;

[0024] The anchor rod strip-shaped hole width 2R1 is the same as the nominal size of the anchor rod diameter d; the center line of the lower arc surface of the anchor rod strip-shaped hole intersects with the axis of the hinge bolt shaft; the length L1 of the anchor rod strip-shaped hole is 0.2-0.24 times the height H1 of the tray fixing plate.

[0025] The bolt strip-shaped hole width 2R2 is the same as the anchor rod fixing plate thickness s2, the center line of the upper arc surface of the bolt strip-shaped hole is in the same plane with the center line of the anchor rod hole, and the length L3 of the bolt strip-shaped hole is 0.26-0.32 times the height H2 of the anchor rod fixing plate.

[0026] The shaft sleeve (14) inner diameter d0 is the same as the nominal size of the double-headed bolt shaft (15) shaft diameter, the shaft sleeve inner diameter d0 is 0.6-0.8 times the anchor rod fixing plate thickness s2, and the shaft sleeve outer diameter D0 is equal to the anchor rod fixing plate thickness S2.

[0027] The use method of the present application is:

[0028] The first step is to measure the anchor rod hole and the rock stratum vertical line angle α, then align the center of the anchor rod strip-shaped hole of the tray fixing plate with the center of the already drilled anchor rod hole, and then vertically fix the tray fixing plate on the roadway side wall.

[0029] The second step is to symmetrically install the two ends of the double-headed bolt shaft of the anchor rod fixing plate in the double-headed bolt shaft mounting seat of the tray fixing plate through the bolt shaft fixing nut, and then sequentially pass the anchor rod through the anchor rod hole of the anchor rod fixing plate and the anchor rod strip-shaped hole of the tray fixing plate and anchor to the already drilled anchor rod hole in the rock stratum.

[0030] The third step is to rotate the angle adjusting nut to change the angle between the anchor rod fixing plate and the tray fixing plate, that is, adjust the angle between the tray fixing plate and the anchor rod fixing plate to be equal to the anchor rod hole and the rock stratum vertical line angle α, then pass the two hinge bolts through the corresponding bolt strip-shaped holes and connect with the hinge bolt shaft, and then fix the angle between the anchor rod fixing plate and the tray fixing plate by using the bolt shaft fixing nut.

[0031] The fourth step is to tighten the nut of the anchor rod to vertically fix the anchor rod on the anchor rod fixing plate.

[0032] Compared with the prior art, the present application has the following positive effects:

[0033] 1. The present application mainly comprises a tray fixing plate, an anchor rod fixing plate, an anchor rod and a hinge bolt, and has a simple structure; these components are easy to process and have low cost; in addition, when these components are transported in and out of the roadway or tunnel, since they have not been assembled, the main components can be transported according to the type of box, and the transportation in and out of the roadway or tunnel is convenient.

[0034] 2, The invention is sequentially installed in the symmetry of the double head bolt shaft in the double head bolt shaft mounting seat, the anchor rod is sequentially connected with the anchor rod hole in the rock stratum through the anchor rod through hole and the anchor rod strip hole, the angle between the anchor rod fixing plate and the tray fixing plate is adjusted to be equal to the included angle α of the anchor rod hole and the rock stratum, the two hinge bolts are connected with the hinge bolt shaft through the corresponding bolt strip hole, and the included angle between the anchor rod fixing plate and the tray fixing plate is fixed by the bolt shaft fixing nut; then the nut provided on the anchor rod is tightened, so that the anchor rod is vertically fixed on the anchor rod fixing plate. Therefore, the operation is simple, the angle adjustment is visualized, and the construction efficiency can be significantly improved.

[0035] 3, The locking torque of the nut of the anchor rod makes the tray fixing plate flat and close to the rock stratum surface, so that the tray fixing plate can play a role in protecting the surrounding rock stratum, effectively transmitting the locking torque generated by the nut on the anchor rod, and the anchoring effect is remarkable.

[0036] 4, The invention can adjust the included angle between the tray fixing plate and the anchor rod fixing plate to the included angle α of the anchor rod hole and the rock stratum line, and the anchor rod can vertically pass through the anchor rod fixing plate, not only solving the problem that the end of the tray after installation is in point-line contact with the rock stratum surface due to the non-perpendicularity of the anchor rod hole angle and the rock stratum surface, but also solving the problem that the anchor rod thread is easily damaged during installation, thereby prolonging the service life.

[0037] Therefore, the invention is not only easy to adjust the angle, convenient to carry, simple in structure, low in cost and easy to operate, and has good anchoring effect and long service life, and is suitable for rock and soil roadway, tunnel supporting field. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a use state schematic diagram of the invention;

[0039] Figure 2 is Figure 1 A-A sectional view schematic diagram in the;

[0040] Figure 3 is Figure 1 the plan view schematic diagram of the tray fixing plate 1 in;

[0041] Figure 4 is Figure 3 B-B sectional view schematic diagram in;

[0042] Figure 5 is Figure 1 the plan view schematic diagram of the anchor rod fixing plate 2 in;

[0043] Figure 6 is Figure 5 C-C sectional view schematic diagram in. DETAILED DESCRIPTION

[0044] The application will be further described in conjunction with the drawings and specific embodiments, which are not intended to limit the scope of the application.

[0045] Embodiment 1

[0046] A kind of anchor rod tray of easy angle adjustment is convenient to carry. The anchor rod tray described in this embodiment, as shown in Figure 1 It includes tray fixed plate 1, anchor rod fixed plate 2, anchor rod 3 and articulated bolt 4.

[0047] Tray fixed plate 1 is square flat plate, as shown in Figure 2 、 Figure 3 And Figure 4 Symmetrically provided with stud shaft mounting seat 11 at two right angles near the top of square flat plate, vertically provided with anchor rod strip-shaped through hole 10 at the middle position near the lower edge of square flat plate, symmetrically provided with rectangular through hole 8 on both sides of anchor rod strip-shaped through hole 10;The lower part of each rectangular through hole 8 is symmetrically provided with shaft seat fixed hole, articulated bolt bearing seat 9 is fixedly installed in shaft seat fixed hole, and both ends of articulated bolt shaft 6 are movably installed in articulated bolt bearing seat 9.

[0048] Anchor rod fixed plate 2 is rectangular flat plate, as shown in Figure 5 And Figure 6 Horizontally fixed with shaft sleeve 14 at the upper end edge of rectangular flat plate, stud shaft 15 is fixedly installed in shaft sleeve 14, and both ends of stud shaft 15 symmetrically extend out of shaft sleeve 14;The center of back of rectangular flat plate is provided with anchor rod through hole 13, anchor rod through hole 13 is conical hole, and the large diameter of conical hole is located at the back of rectangular flat plate;The front of rectangular flat plate is provided with conical platform, and the center line of conical platform is in line with the center line of conical through hole;Symmetrically provided with bolt strip-shaped through hole 12 near the lower part of rectangular flat plate, and the center line of bolt strip-shaped through hole 12 is tangent to the outer circle of conical platform.

[0049] The use state of the embodiment is shown in Figure 1 The center of anchor rod strip-shaped through hole 10 of tray fixed plate 1 is aligned with the center of the anchor rod hole that has been drilled, and then the tray fixed plate 1 is vertically fixed on the sidewall of roadway, and then both ends of stud shaft 15 of anchor rod fixed plate 2 are symmetrically installed in stud shaft mounting seat 11 of tray fixed plate 1 through bolt shaft fixing nut 7;Anchor rod 3 is sequentially connected with the anchor rod hole that has been drilled in rock stratum through anchor rod through hole 13 of anchor rod fixed plate 2 and anchor rod strip-shaped through hole 10 of tray fixed plate 1;Two articulated bolts 4 are movably connected with articulated bolt shaft 6 installed in tray fixed plate 1 through corresponding bolt strip-shaped through holes 12.

[0050] As shown in Figure 1As shown, the lower end of the two hinge bolts 4 is provided with an axial hole in the radial direction, and the lower end of the two hinge bolts 4 is movably connected with the hinge bolt shaft 6 through the axial hole and the bolt strip-shaped through hole 12 corresponding to each other.

[0051] The anchor rod tray described in the embodiment is used in the sidewall of a mine roadway, the anchor rod hole diameter d0 of the sidewall of the mine roadway is 25 mm, and the angle between the anchor rod hole and the vertical line of the rock stratum is 20° due to design reasons.

[0052] In the embodiment, the anchor rod 3 is a 25 mm diameter anchor rod.

[0053] The side length L1 of the tray fixing plate 1 is 150 mm.

[0054] The diameter d of the anchor rod 3 is 25 mm.

[0055] The large diameter d1 of the conical through hole is 3 times the small diameter d3 of the conical through hole.

[0056] The small diameter d3 of the conical through hole is the same as the nominal size of the diameter d of the anchor rod 3.

[0057] The depth s3 of the conical through hole is 1.8 times the thickness s2 of the anchor rod fixing plate 2.

[0058] The large diameter d2 of the conical frustum is 1.2 times the large diameter d1 of the conical through hole.

[0059] The small diameter d4 of the conical frustum is 0.4 times the large diameter d2 of the conical frustum.

[0060] The side length L2 of the anchor rod fixing plate 2 is equal to the side length L1 of the tray fixing plate 1.

[0061] The height H2 of the anchor rod fixing plate 2 is 0.73 times the height H1 of the tray fixing plate 1.

[0062] The width b of the rectangular through hole 8 is 0.08 times the length L1 of the tray fixing plate 1, and the length L2 of the rectangular through hole is 0.16 times the height H1 of the tray fixing plate 1; the width b of the rectangular through hole is equal to the thickness s1 of the tray fixing plate 1.

[0063] The thickness s1 of the tray fixing plate 1 is 0.08 times the side length L1 of the tray fixing plate 1.

[0064] The width 2R1 of the anchor rod strip-shaped through hole 10 is the same as the nominal size of the diameter d of the anchor rod 3; the center line of the lower arc surface of the anchor rod strip-shaped through hole 10 intersects with the axis of the hinge bolt shaft 6; and the length l1 of the anchor rod strip-shaped through hole 10 is 0.2 times the height H1 of the tray fixing plate 1.

[0065] The width 2R2 of the bolt strip-shaped through hole 12 is the same as the thickness s2 of the anchor rod fixing plate 2, the center line of the upper circular arc surface of the bolt strip-shaped through hole 12 and the center line of the anchor rod through hole 13 are in the same plane, and the length l2 of the bolt strip-shaped through hole 12 is 0.26 times the height H2 of the anchor rod fixing plate 2.

[0066] The inner diameter d0 of the shaft sleeve 14 is the same as the nominal size of the shaft diameter of the stud bolt shaft 15, the inner diameter d0 of the shaft sleeve 14 is 0.6 times the thickness s2 of the anchor rod fixing plate 2, and the outer diameter D0 of the shaft sleeve 14 is equal to the thickness S2 of the anchor rod fixing plate 2.

[0067] Embodiment 2

[0068] A kind of anchor rod tray of easy angle adjustment is convenient to carry. The anchor rod tray described in the embodiment is used in the sidewall of a mine roadway, the anchor rod hole diameter d0 of the sidewall of the roadway is 25 mm, and the anchor rod hole and the rock layer vertical line are made into 30 ° due to construction reason Angle.

[0069] The embodiment is the same as embodiment 2 except the following technical parameters:

[0070] The side length L1 of the tray fixing plate 1 is 200 mm;

[0071] The diameter d of the anchor rod 3 is 32 mm;

[0072] The large diameter d1 of the conical through hole is 3.5 times the small diameter d3 of the conical through hole;

[0073] The depth s3 of the conical through hole is 2.5 times the thickness s2 of the anchor rod fixing plate 2.

[0074] The large diameter d2 of the conical frustum is 11.6 times the large diameter d1 of the conical through hole;

[0075] The small diameter d4 of the conical frustum is 0.5 times the large diameter d2 of the conical frustum.

[0076] The height H2 of the anchor rod fixing plate 2 is 0.75 times the height H1 of the tray fixing plate 1.

[0077] The width b of the rectangular through hole 8 is 0.10 times the length L1 of the tray fixing plate 1, and the length L2 of the rectangular through hole is 0.17 times the height H1 of the tray fixing plate 1.

[0078] The thickness s1 of the tray fixing plate 1 is 0.10 times the side length L1 of the tray fixing plate 1;

[0079] The length L1 of the anchor rod strip-shaped through hole 10 is 0.22 times the height H1 of the tray fixing plate 1.

[0080] The length l3 of the bolt strip-shaped through hole 12 is 0.30 times the height H2 of the anchor rod fixing plate 2.

[0081] The inner diameter d0 of the shaft sleeve 14 is 0.7 times the thickness s2 of the anchor rod fixing plate 2.

[0082] Embodiment 3

[0083] An anchor rod tray with adjustable angle and convenient to carry. The anchor rod tray in the embodiment is used in a mine roadway sidewall, and the anchor rod hole diameter d0 of the mine roadway sidewall is 40 mm. Due to construction reasons, the angle between the anchor rod hole and the vertical line of the rock stratum is 45°.

[0084] The embodiment is the same as Embodiment 2 except for the following technical parameters:

[0085] The side length L1 of the tray fixing plate 1 is 240 mm.

[0086] The diameter d of the anchor rod 3 is 40 mm.

[0087] The major diameter d1 of the conical hole is 4 times the minor diameter d3 of the conical hole.

[0088] The depth s3 of the conical hole is 3 times the thickness s2 of the anchor rod fixing plate 2.

[0089] The major diameter d2 of the conical frustum is 2 times the major diameter d1 of the conical hole.

[0090] The minor diameter d4 of the conical frustum is 0.55 times the major diameter d2 of the conical frustum.

[0091] The height H2 of the anchor rod fixing plate 2 is 0.77 times the height H1 of the tray fixing plate 1.

[0092] The width b of the rectangular hole 8 is 0.12 times the length L1 of the tray fixing plate 1, and the length L2 of the rectangular hole is 0.18 times the height H1 of the tray fixing plate 1.

[0093] The thickness s1 of the tray fixing plate 1 is 0.12 times the side length L1 of the tray fixing plate 1.

[0094] The length L1 of the anchor rod strip-shaped hole 10 is 0.24 times the height H1 of the tray fixing plate 1.

[0095] The center line of the upper arc surface of the bolt strip-shaped hole 12 and the center line of the anchor rod hole 13 are located in the same plane, and the length 13 of the bolt strip-shaped hole 12 is 0.32 times the height H2 of the anchor rod fixing plate 2.

[0096] The inner diameter d0 of the shaft sleeve 14 is 0.8 times the thickness s2 of the anchor rod fixing plate 2.

[0097] The use method of the specific embodiment is:

[0098] First step, measure the angle α between the anchor rod hole and the vertical line of the rock stratum, then align the center of the anchor rod strip-shaped hole 10 of the tray fixing plate 1 with the center of the already drilled anchor rod hole, and then vertically fix the tray fixing plate 1 on the sidewall of the roadway.

[0099] Second step, symmetrically install the two ends of the stud bolt shaft 15 of the anchor rod fixing plate 2 in the stud bolt shaft mounting seat 11 of the tray fixing plate 1 through the stud bolt shaft fixing nut 7, then sequentially pass the anchor rod 3 through the anchor rod hole 13 of the anchor rod fixing plate 2 and the anchor rod strip-shaped hole 10 of the tray fixing plate 1 and anchor in the already drilled anchor rod hole in the rock stratum.

[0100] Third step, rotate the angle adjusting nut 5 to change the angle between the anchor rod fixing plate 2 and the tray fixing plate 1, that is, first adjust the angle between the tray fixing plate 1 and the anchor rod fixing plate 2 to be equal to the angle α between the anchor rod hole and the vertical line of the rock stratum, then connect the two hinge bolts 4 through the respective bolt strip-shaped holes 12 and the hinge bolt shaft 6, and then fix the angle between the anchor rod fixing plate 2 and the tray fixing plate 1 by the stud bolt shaft fixing nut 7.

[0101] Fourth step, tighten the nut provided on the anchor rod 3 to vertically fix the anchor rod 3 on the anchor rod fixing plate 2.

[0102] Compared with the prior art, the specific embodiment has the following positive effects:

[0103] 1. The specific embodiment mainly consists of the tray fixing plate 1, the anchor rod fixing plate 2, the anchor rod 3 and the hinge bolt 4, and has a simple structure; these components are easy to process and have low cost; in addition, when these components are carried in and out of the roadway or tunnel, since they have not been assembled, the main components can be carried according to the type of box, and the carrying in and out of the roadway or tunnel is convenient.

[0104] 2. The specific embodiment first symmetrically installs the two ends of the stud bolt shaft 15 in the stud bolt shaft mounting seat 11, sequentially passes the anchor rod 3 through the anchor rod hole 13 and the anchor rod strip-shaped hole 10 and anchors in the already drilled anchor rod hole in the rock stratum, adjusts the angle between the tray fixing plate 1 and the anchor rod fixing plate 2 to be equal to the angle α between the anchor rod hole and the vertical line of the rock stratum, connects the two hinge bolts 4 through the respective bolt strip-shaped holes 12 and the hinge bolt shaft 6, fixes the angle between the anchor rod fixing plate 2 and the tray fixing plate 1 by the stud bolt shaft fixing nut 7, and then tightens the nut provided on the anchor rod 3 to vertically fix the anchor rod 3 on the anchor rod fixing plate 2. Therefore, the operation is simple, the angle adjustment is visualized, and the construction efficiency can be significantly improved.

[0105] 3、The specific embodiment can make the tray fixing plate 1 and the rock stratum surface flat and close by the locking torque applied by the nut of the anchor rod 3, so that the tray fixing plate 1 can play a role of protecting the surrounding rock stratum, effectively transmit the locking torque generated by the nut of the anchor rod 3, and the anchoring effect is remarkable.

[0106] 4、The specific embodiment can adjust the included angle between the tray fixing plate 1 and the anchor rod fixing plate 2 to the included angle α between the anchor rod hole and the rock stratum line, not only solve the problem that the tray rear end after installation is in point-line contact with the rock stratum surface due to the non-perpendicularity between the anchor rod hole angle and the rock stratum surface, but also solve the problem that the anchor rod thread is easily damaged during installation of the anchor rod, thereby prolonging the service life.

[0107] Therefore, the specific embodiment is not only easy to adjust the angle, convenient to carry, simple in structure, low in cost and convenient to operate, but also has good anchoring effect and long service life, and is suitable for the rock-soil roadway and tunnel supporting field.

Claims

1. An angle-adjustable and easy-to-carry anchor rod tray, characterized in that The anchor rod tray comprises a tray fixing plate (1), an anchor rod fixing plate (2), an anchor rod (3) and a hinge bolt (4); The tray fixing plate (1) is a square plate, double-end bolt shaft mounting seats (11) are symmetrically arranged at two right angles near the top of the square plate, an anchor rod strip-shaped through hole (10) is vertically arranged at the middle position near the lower edge of the square plate, and rectangular through holes (8) are symmetrically arranged on both sides of the anchor rod strip-shaped through hole (10); an axle seat fixing hole is symmetrically arranged at the lower part of each rectangular through hole (8), a hinge bolt bearing seat (9) is fixedly arranged in the axle seat fixing hole, and both ends of a hinge bolt shaft (6) are movably arranged in the hinge bolt bearing seat (9); The anchor rod fixing plate (2) is a rectangular plate, a shaft sleeve (14) is horizontally fixed at the upper end edge of the rectangular plate, a double-end bolt shaft (15) is fixedly arranged in the shaft sleeve (14), and both ends of the double-end bolt shaft (15) symmetrically extend out of the shaft sleeve (14); an anchor rod through hole (13) is arranged at the centroid of the back of the rectangular plate, the anchor rod through hole (13) is a conical hole, and the large diameter of the conical hole is located at the back of the rectangular plate; a conical table is arranged on the front of the rectangular plate, the center line of the conical table is in line with the center line of the conical through hole; bolt strip-shaped through holes (12) are symmetrically arranged near the lower part of the rectangular plate, and the center line of the bolt strip-shaped through hole (12) is tangent to the outer circle of the conical table; Both ends of the double-end bolt shaft (15) of the anchor rod fixing plate (2) are symmetrically arranged in the double-end bolt shaft mounting seat (11) of the tray fixing plate (1) through a bolt shaft fixing nut (7); the anchor rod (3) is sequentially arranged through the anchor rod through hole (13) of the anchor rod fixing plate (2) and the anchor rod strip-shaped through hole (10) of the tray fixing plate (1) and is anchored and connected with a pre-formed anchor rod hole in a rock stratum; The lower ends of the two hinge bolts (4) are provided with shaft holes in the radial direction, the lower ends of the two hinge bolts (4) pass through the corresponding bolt strip-shaped through holes (12) and are movably connected with the hinge bolt shaft (6) through the shaft holes; the two hinge bolts (4) are provided with angle adjusting nuts (5), and the angle adjusting nuts (5) are tightly arranged on the lower plane of the bolt strip-shaped through hole (12) of the anchor rod fixing plate (2). The conical through hole large diameter d 1 is the conical through hole small diameter d 3~4 times of 3 The conical through hole small diameter d 3 is the same as the nominal size of the diameter of the anchor rod (3) d ; the conical through hole depth s 3 is the thickness of the anchor rod fixing plate (2) s 1.8~3 times of 2; conical frustum large diameter d 2 is a conical hole large diameter d 1.2~2 times of 1, conical frustum small diameter d 4conical frustum large diameter d 0.4-0.55 times of 2; The anchor rod fixing plate (2) side length L 2 is equal to the tray fixing plate (1) side length L 1 Thickness of tray fixing plate (1) s 1 is the side length of tray fixing plate (1) L 0.08~0.12 times of 1, The anchor rod fixing plate (2) height H 2 is the tray fixing plate (1) height H 0.73~0.77 times of 1; The rectangular through hole (8) width b The tray fixing plate (1) length L 0.08~0.12 times of 1, the rectangular through hole length L 2 is the height of the tray fixing plate (1) H 0.16~0.18 times of 1; the rectangular through hole width b Is equal to the thickness of the tray fixing plate (1) s 1 The anchor rod strip-shaped through hole (10) width 2 R 1 is the same as the nominal size of the anchor rod (3) diameter d The center line of the lower arc surface of the anchor rod strip-shaped through hole (10) intersects with the axis of the hinge bolt shaft (6); the length of the anchor rod strip-shaped through hole (10) L 1 is 0.2~0.24 times the height of the tray fixing plate (1) H 1.

2. The easily adjustable angle, easy to handle, anchor rod tray of claim 1, wherein The width of the bolt strip-shaped through hole (12) is 2. R 2. Thickness of anchor bolt fixing plate (2) s 2. Same as above, the length of the bolt strip through hole (12) 1 3 represents the height of the anchor bolt fixing plate (2). H 0.26 to 0.32 times 2, the center line of the upper arc surface of the bolt strip through hole (12) and the center line of the anchor rod through hole (13) are located in the same plane.

3. The easily adjustable angle, easy to handle, anchor rod tray of claim 1, wherein The inner diameter of the bushing (14) d 0 is the same as the nominal size of the diameter of the stud shaft (15), and the inner diameter of the bushing (14) d 0 is the thickness of the anchor rod fixing plate (2) s 2 is 0.6 to 0.8 times the thickness of the anchor rod fixing plate (2), and the outer diameter of the bushing (14) D 0 is the same as the thickness of the anchor rod fixing plate (2) S 2.

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