Roadway bottom corner anchor rod construction assisting device for coal mine

Abstract

The utility model discloses a roadway bottom corner anchor rod construction power assisting device for coal mine, include the support pole of oblique arrangement, the lower part outside of support pole is fixed with first thimble and crosspiece horizontally, and the crosspiece is located below first thimule, and the one end of crosspiece away from support pole is installed with the pressing plate, and the prying bar is placed in first thimule, and the upper part of support pole is installed with the connecting piece horizontally, and the outside of connecting piece is provided with the head cover. The roadway bottom corner anchor rod construction power assisting device for coal mine has solved the problem of time -consuming, labor -intensive and great labor intensity of the mode that the existing back pressure anchor net and steel band are closely attached on the coal wall by adopting the help anchor machine.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine support technology, specifically relating to a construction assistance device for bottom corner anchor bolts in coal mine roadways. Background Technology

[0002] When constructing bottom corner anchor bolt support in coal mine roadways with poor slab formation conditions, the anchor mesh and steel strip near the anchor bolt installation point often deform due to localized pressure, sometimes even bulging outwards. In such cases, a side anchoring machine is needed to press the anchor mesh and steel strip back firmly against the coal face, and then a support plate is added to the anchor bolt for subsequent support. This method of using a side anchoring machine is not only time-consuming and labor-intensive, but also physically demanding. Utility Model Content

[0003] This utility model provides a construction assistance device for bottom corner anchor bolts in coal mine roadways, which solves the problems of time-consuming, labor-intensive and high-labor intensity associated with the existing method of using a back-pressing anchor machine to press the anchor mesh and steel strip back to the coal wall.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a coal mine roadway bottom corner anchor bolt construction assistance device, including an obliquely arranged support rod, a first ring and a crossbar are horizontally fixed on the lower outer side of the support rod, the crossbar is located below the first ring, a pressure plate is installed at the end of the crossbar away from the support rod, a pry bar is placed inside the first ring, a connector is horizontally installed on the upper part of the support rod, and a head cover is provided on the outer side of the connector.

[0005] The technical solution of this utility model also has the following characteristics:

[0006] The connector is a horizontally placed U-shaped piece.

[0007] The upper part of the support rod is provided with external threads, and the upper and lower sides of the U-shaped part are provided with a pair of threaded holes.

[0008] The headgear has an external threaded connector that extends into the side of the U-shaped piece, and a nut is threaded onto the end of the connector.

[0009] A second ring is provided at the lower end of the support rod.

[0010] The pressure plate is square.

[0011] The pressure plate is circular.

[0012] The pressure plate and the end of the crossbar are threaded together.

[0013] The beneficial effects of this utility model are as follows: The coal mine roadway corner anchor bolt construction assist device of this utility model allows for easy use by placing the upper end of the head cover over the exposed head of the already constructed anchor bolt at the upper corner of the coal mine roadway. Holding the upper end of the pry bar and prying outwards, the anchor mesh and shaped steel strip can be pressed tightly against the coal wall. Subsequently, a tray is placed on the anchor bolt for support operations. This device is convenient and labor-saving, improving work efficiency while eliminating the time-consuming, labor-intensive, and physically demanding problems associated with the previous method of using a jacking anchor machine to press the anchor mesh. It is suitable for roadway corner anchor bolt support operations and has significant potential for widespread application. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the construction assistance device for bottom corner anchor bolts in coal mine roadways according to this utility model.

[0015] In the diagram: 1. Support rod, 2. Nut, 3. Head sleeve, 4. Threaded joint, 5. U-shaped piece, 6. Pry bar, 7. Second collar, 8. Pressure plate, 9. Crossbar, 10. First collar. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] like Figure 1 As shown, this utility model discloses a coal mine roadway bottom corner anchor bolt construction assistance device, which includes a support rod 1 arranged obliquely. A first ring 10 and a crossbar 9 are fixed horizontally on the lower outer side of the support rod 1. The crossbar 9 is located below the first ring 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first ring 10. A connector 5 is installed horizontally on the upper part of the support rod 1. A head cover 3 is provided on the outer side of the connector 5.

[0019] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 10, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure the thrust applied by the pry bar 6 is transmitted to the support rod 1, thereby causing the support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and the support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transferring the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor bolt, ensuring that the anchor bolt loosens during the advancement process. Connector 5 connects the head sleeve 3 and the support rod 1.

[0020] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the thrust of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the thrust of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0021] Example 2

[0022] like Figure 1 As shown in Embodiment 1, in Embodiment 2, the coal mine roadway bottom corner anchor bolt construction assistance device of this utility model includes a support rod 1 arranged obliquely. The lower outer side of the support rod 1 is horizontally fixed with a first ring 10 and a crossbar 9. The crossbar 9 is located below the first ring 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first ring 10. A connector 5 is horizontally installed on the upper part of the support rod 1. A head cover 3 is provided on the outer side of the connector 5.

[0023] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 10, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure the thrust applied by the pry bar 6 is transmitted to the support rod 1, thereby causing the support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and the support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transferring the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor bolt, ensuring that the anchor bolt loosens during the advancement process. Connector 5 connects the head sleeve 3 and the support rod 1.

[0024] Unlike Embodiment 1, in Embodiment 2, the connecting part 5 of this utility model, which is a horizontally placed U-shaped part, is used to facilitate fixing and assembly of the bottom corner anchor bolt construction aid device for coal mine roadways.

[0025] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the thrust of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the thrust of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0026] Example 3

[0027] like Figure 1As shown in Example 2, in Example 3, a coal mine roadway bottom corner anchor bolt construction assistance device of this utility model includes a support rod 1 arranged obliquely. A first ring 10 and a crossbar 9 are horizontally fixed to the lower outer side of the support rod 1. The crossbar 9 is located below the first ring 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first ring 10. A connector 5 is horizontally installed on the upper part of the support rod 1, and a head cap 3 is provided on the outer side of the connector 5. The connector 5 is a horizontally placed U-shaped piece.

[0028] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 10, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure the thrust applied by the pry bar 6 is transmitted to the support rod 1, thereby causing the support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and the support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transferring the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor rod, ensuring that the anchor rod loosens during the advancement process. Connector 5 connects the head sleeve 3 and the support rod 1. Connector 5 is a horizontally placed U-shaped piece for easy fixing and assembly.

[0029] Unlike Embodiment 2, in Embodiment 3, the upper part of the support rod 1 of this utility model is provided with an external thread, and the upper and lower sides of the U-shaped part are provided with a pair of threaded holes. The U-shaped part and the upper part of the support rod 1 are assembled together by threaded engagement. The appropriate height of the U-shaped part can be selected according to the deformation position of the anchor mesh and steel strip so that the pressure plate 8 can be located outside the deformation position.

[0030] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the thrust of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the thrust of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0031] Example 4

[0032] like Figure 1As shown in Example 3, in Example 4, the coal mine roadway bottom corner anchor bolt construction assistance device of this utility model includes a support rod 1 arranged obliquely. A first ring 10 and a crossbar 9 are horizontally fixed to the lower outer side of the support rod 1. The crossbar 9 is located below the first ring 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first ring 10. A connector 5 is horizontally installed on the upper part of the support rod 1, and a head cover 3 is provided on the outer side of the connector 5. The connector 5 is a horizontally placed U-shaped piece. The upper part of the support rod 1 is provided with external threads, and a pair of threaded holes are provided on the upper and lower sides of the U-shaped piece.

[0033] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 1, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure that the thrust applied by the pry bar 6 is transmitted to the support rod 1, thereby causing the support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and the support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transmitting the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor rod, ensuring that the anchor rod loosens during the advancement process. Connector 5 connects the head sleeve 3 and the support rod 1. Connector 5 is a horizontally placed U-shaped piece for easy fixing and assembly. The U-shaped piece is threaded together with the upper part of the support rod 1. The appropriate height of the U-shaped piece can be selected according to the deformation position of the anchor mesh and steel strip so that the pressure plate 8 can be located outside the deformation position.

[0034] Unlike Embodiment 3, in Embodiment 4, the construction assistance device for anchor bolts at the bottom corner of a coal mine roadway according to this utility model has a threaded connector 4 externally connected to the head sleeve 3. The threaded connector 4 extends into the side of the connecting member 5, and a nut 2 is threaded onto the extended end of the threaded connector 4. The threaded connector 4 and the side of the connecting member 5 are connected by threads, making assembly and disassembly convenient.

[0035] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the thrust of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the thrust of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0036] Example 5

[0037] like Figure 1As shown in Example 4, in Example 5, a coal mine roadway bottom corner anchor bolt construction assistance device of this utility model includes an obliquely arranged support rod 1. A first collar 10 and a crossbar 9 are horizontally fixed to the lower outer side of the support rod 1. The crossbar 9 is located below the first collar 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first collar 10. A connector 5 is horizontally installed on the upper part of the support rod 1, and a head sleeve 3 is provided on the outer side of the connector 5. The connector 5 is a horizontally placed U-shaped piece. The upper part of the support rod 1 is provided with external threads, and a pair of threaded holes are provided on the upper and lower sides of the U-shaped piece. A threaded joint 4 is connected to the outside of the head sleeve 3. The threaded joint 4 extends into the side of the connector 5, and a nut 2 is threaded onto the extended end of the threaded joint 4.

[0038] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 1, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure the thrust applied by the pry bar 6 is transmitted to support rod 1, causing support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transferring the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor rod, ensuring that the anchor rod loosens during the advancement process. Connector 5 connects the head sleeve 3 and support rod 1. Connector 5 is a horizontally placed U-shaped piece for easy fixing and assembly. The U-shaped piece is threaded to the upper part of support rod 1; the appropriate height can be selected based on the deformation position of the anchor mesh and steel strip to ensure the pressure plate 8 is located outside the deformed position. The threaded joint 4 is threaded to the side of connector 5 for easy assembly and disassembly.

[0039] Unlike Embodiment 4, in Embodiment 5, a construction assistance device for anchor bolts at the bottom corner of a coal mine roadway according to this utility model, a second ring 7 is provided at the lower end of the support rod 1. Workers can step on the second ring 7 to easily apply force and prevent slippage.

[0040] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, and the foot is placed on the second ring 7, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the pushing force of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the pushing force of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0041] Example 6

[0042] like Figure 1As shown in Example 5, in Example 6, a coal mine roadway bottom corner anchor bolt construction assistance device of this utility model includes an obliquely arranged support rod 1. A first collar 10 and a crossbar 9 are horizontally fixed to the lower outer side of the support rod 1. The crossbar 9 is located below the first collar 10. A pressure plate 8 is installed at the end of the crossbar 9 away from the support rod 1. A pry bar 6 is placed inside the first collar 10. A connector 5 is horizontally installed on the upper part of the support rod 1, and a head sleeve 3 is provided on the outer side of the connector 5. The connector 5 is a horizontally placed U-shaped piece. The upper part of the support rod 1 is provided with external threads, and a pair of threaded holes are provided on the upper and lower sides of the U-shaped piece. A threaded joint 4 is connected to the outside of the head sleeve 3. The threaded joint 4 extends into the side of the connector 5, and a nut 2 is threaded onto the extended end of the threaded joint 4. A second collar 7 is provided at the lower end of the support rod 1.

[0043] Support rod 1 serves as a load-bearing structure, primarily used to assemble the first ring 1, transverse rod 9, and connector 5. The first ring 10 acts as a fulcrum, engaging with the pry bar 6 to ensure the thrust applied by the pry bar 6 is transmitted to support rod 1, causing support rod 1 to move forward as a whole. The transverse rod 9 connects the pressure plate 8 and support rod 1. The pressure plate 8 contacts the deformed anchor mesh and / or steel plate, transferring the thrust generated by the pry bar 6 to it, causing it to re-adhere tightly to the coal wall. The head sleeve 3 is fitted onto the driven anchor rod, ensuring that the anchor rod loosens during the advancement process. Connector 5 connects the head sleeve 3 and support rod 1. Connector 5 is a horizontally placed U-shaped piece for easy fixing and assembly. The U-shaped piece is threaded to the upper part of support rod 1; the appropriate height can be selected based on the deformation position of the anchor mesh and steel strip to ensure the pressure plate 8 is located outside the deformed position. The threaded joint 4 is threaded to the side of connector 5 for easy assembly and disassembly. Workers can step on the second ring 7 to apply force conveniently and prevent slipping.

[0044] Unlike Embodiment 5, in Embodiment 6, the end of the pressure plate 8 and the crossbar 9 of this utility model are threaded together for easy disassembly. The pressure plate 8 is preferably square or round, and can be selected according to different working conditions to achieve better operational results.

[0045] During operation, the headgear 3 is first placed on the driven anchor bolt, ensuring that the pressure plate 8 is located outside the deformed anchor mesh and / or steel plate. Then, the lower end of the pry bar 6 is inserted into the first ring 10, and the foot is placed on the second ring 7, so that the lower end of the pry bar 6 is aligned with the outside of the support rod 1 and pressed down. At this time, the support rod 1 moves forward under the pushing force of the pry bar 6, and the deformed anchor mesh or steel plate is pressed back onto the coal wall by the pushing force of the pressure plate 8. Finally, the worker further fixes and supports the coal wall by using a fixed tray.

[0046] In summary, compared with existing technologies, this utility model's coal mine roadway corner anchor bolt construction assistance device allows for convenient and labor-saving operation. When using it, the upper end of the head cover is placed over the exposed head of the already constructed anchor bolt at the upper corner of the coal mine roadway. By holding the upper end of the pry bar and prying outwards, the anchor mesh and shaped steel strip can be pressed tightly against the coal wall. Subsequently, a tray is placed on the anchor bolt for support work. This device is convenient and labor-saving, improving work efficiency while eliminating the time-consuming, labor-intensive, and physically demanding problems associated with traditional anchor-supporting machines that press the anchor mesh. It is suitable for roadway corner anchor bolt support operations and has significant potential for widespread application.

Claims

1. A construction assistance device for anchor bolts at the bottom corner of a coal mine roadway, characterized in that, The support rod (1) is arranged diagonally. A first collar (10) and a crossbar (9) are fixed horizontally on the lower outer side of the support rod (1). The crossbar (9) is located below the first collar (10). A pressure plate (8) is installed at the end of the crossbar (9) away from the support rod (1). A pry bar (6) is placed inside the first collar (10). A connector (5) is installed horizontally on the upper part of the support rod (1). A head cover (3) is provided on the outer side of the connector (5).

2. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 1, characterized in that, The connector (5) is a horizontally placed U-shaped piece.

3. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 2, characterized in that, The upper part of the support rod (1) is provided with an external thread, and the upper and lower sides of the U-shaped part are provided with a pair of threaded holes.

4. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 3, characterized in that, The headgear (3) is externally connected to a threaded connector (4), which extends into the side of the connector (5), and the threaded end of the threaded connector (4) is threaded with a nut (2).

5. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 4, characterized in that, The lower end of the support rod (1) is provided with a second collar (7).

6. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 5, characterized in that, The pressure plate (8) is square.

7. The coal mine roadway bottom corner anchor bolt construction assist device according to claim 6, characterized in that, The pressure plate (8) is circular.

8. The coal mine roadway bottom corner anchor bolt construction assistance device according to claim 7, characterized in that, The pressure plate (8) is threaded together with the end of the crossbar (9).

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