Coal mine underground single prop hard linking device

Abstract

The utility model relates to the field of coal mines, and discloses a coal mine underground single prop hard linking device. According to the connecting assembly, the connecting threaded hole serves as an installation foundation of the connecting assembly, the inner side of the connecting threaded hole and the butt joint pipeline are attached together to achieve the purpose of connection and installation, and the threads on the outer side of the connecting threaded hole are used for connecting or detaching external supporting columns in a conventional clockwise screwing and anticlockwise unscrewing mode; through replacement of adapter threaded holes with different pipe diameters on the outer side, adapter connection between the device and an external supporting column is achieved, assemblies used for adapter connection of supporting columns with different pipe diameters are installed on the device, single hydraulic supporting columns with different diameters can be allowed to be connected with one another, and the adaptability of the supporting columns is improved; and the supporting requirements under different mine conditions can be better met.

Description

Technical Field

[0001] The present application belongs to the field of coal mine technology, and specifically relates to a single pillar hard link device in underground coal mines. Background Art

[0002] Coal mining equipment refers to mechanical equipment specially used in the production processes of coal mining, support, transportation, washing, etc. These equipment play a vital role in improving the mining efficiency of coal resources, ensuring the safety of miners and increasing coal production. The single pillar hard link device in coal mines is a device used to enhance the stability of single hydraulic pillars in coal mines. It connects the pillars by hard links to form an integrated support structure to improve the support effect and safety.

[0003] For example, the patent with announcement number CN207974836U discloses an underground single hydraulic prop anti-falling hard link device, including a guide frame, two threaded adjustment rods, two connecting rods, a fixing ring and a fastening bolt. The front and rear ends of the guide frame are respectively provided with threaded holes for the threaded adjustment rods to pass through and threadedly match. The two threaded adjustment rods are coaxially arranged and consistent with the central axis of the front and rear ends of the guide frame; one end of the connecting rod is fastened to the free end of the threaded adjustment rod, and a radial threaded hole is provided at the other end of the connecting rod; the connecting piece on the fixing ring is clamped on the outside of the connecting rod, and a circular hole not smaller than the radial threaded hole is provided on the connecting piece. The fastening bolt passes through the circular hole and the radial threaded hole in turn, and the connecting rod and the fixing ring are fixed by the fastening bolt. The utility model can adjust the spacing by adjusting the telescopic amount of the threaded adjustment rod, can adapt to different working environments underground in coal mines, and adjust the use spacing accordingly according to the changes in the conditions of the on-site single column support, so as to achieve the effect of anti-falling.

[0004] However, the device is not equipped with components for switching between pillars of different diameters, and cannot allow single hydraulic pillars of different diameters to be connected to each other, which reduces the adaptability of the pillars and makes it unable to better adapt to the support needs under different mining conditions. Utility Model Content

[0005] The purpose of this application is to provide a hard-link device for single pillars in coal mines in order to solve the problem that the above-mentioned device is not equipped with components for switching pillars of different diameters, and cannot allow single hydraulic pillars of different diameters to be connected to each other, which reduces the adaptability of the pillars and makes it unable to better adapt to the support needs under different mining conditions.

[0006] The technical solution adopted in this application is as follows: It includes multiple docking pipes, and is characterized in that: A plurality of positioning grooves are fixedly installed on the outer surfaces of the left and right sides of the docking pipes, a transfer threaded hole is fitted and installed inside the docking pipes, a pin is penetrated through the docking pipes, the positioning grooves and the transfer threaded hole, fixing blocks are hingedly installed on the outer surfaces of both sides of the pin, and cross screws are penetrated through the fixing blocks.

[0007] By adopting the above technical solution, a plurality of positioning grooves are fixedly installed on the outer surfaces of the left and right sides of the docking pipes, a transfer threaded hole is fitted and installed inside the docking pipes, a pin is penetrated through the docking pipes, the positioning grooves and the transfer threaded hole, fixing blocks are hingedly installed on the outer surfaces of both sides of the pin, and cross screws are penetrated through the fixing blocks. The inside of the docking pipe provides conditions for the installation and fixation of the transfer component, and the positioning groove provides an installation basis for the components fixing the transfer component. By opening holes inside the docking pipe, the positioning groove and the transfer component, the fixing component can penetrate through the inside of the docking pipe, the positioning groove and the transfer component. The transfer threaded hole serves as the installation basis of the transfer component. The inner side of the transfer threaded hole is fitted with the docking pipe to achieve the purpose of connection and installation. The thread on the outer side of the transfer threaded hole is connected or disassembled with the external support by the conventional clockwise tightening and counterclockwise loosening methods. When it is necessary to transfer supports with different pipe diameters, the transfer between the device itself and the external support is realized by replacing the transfer threaded holes with different outer diameters. The pin penetrates through the inside of the docking pipe, the positioning groove and the transfer threaded hole and fits with its holes, and can fixedly connect the transfer component with the device itself to prevent the transfer threaded hole from displacing inside the positioning groove. The fixing block can rotate on the outer surface of the pin. The width of the fixing block is smaller than the diameter of the pin to avoid the fixing block blocking the normal installation of the pin when the pin penetrates through the inside of the docking pipe, the positioning groove and the transfer threaded hole. The inner side of the cross screw penetrates through the fixing block and the inner side of the positioning groove to provide a threaded connection. The fixing block and the inside of the positioning groove are connected by the cross screw to prevent the pin from falling off from the inside of the transfer component and affecting the fixation of the transfer component. By installing a component for transferring supports with different pipe diameters in this device, it is possible to allow single hydraulic supports with different diameters to be connected to each other, improving the adaptability of the supports and enabling them to better meet the support requirements under different mine conditions.

[0008] In a preferred embodiment, an installation frame is fixedly installed inside the docking pipe.

[0009] By adopting the above technical solution, an installation frame is fixedly installed inside the docking pipe. The installation frame serves as the installation basis of the whole device and can connect all the components in the device. The installation frame contains reinforcing ribs inside, which can improve its overall strength.

[0010] In a preferred embodiment, a connecting rod is fixedly installed inside the installation frame.

[0011] By adopting the above technical solution, a connecting rod is fixedly installed inside the installation frame. The inside of the connecting rod is designed with a hollow pipe, and its internal hollow area is attached to the adjustment component. The connecting rod is used to connect the adjustment component to the operation area, so that when the staff operates the device, the adjustment component can be adjusted and changed following the control of the staff.

[0012] In a preferred embodiment, handle folders are fixedly installed on the outer surfaces of the left and right sides of the installation frame, and handles are hingedly installed on the outer sides of the handle folders.

[0013] By adopting the above technical solution, handle folders are fixedly installed on the outer surfaces of the left and right sides of the installation frame, and handles are hingedly installed on the outer sides of the handle folders. With the combination of the handle folder and the handle, the handle folder can drive the handle to rotate, which is used to fold the handle when it is not in use to avoid the handle protruding and causing harm to the staff passing by. The handle is convenient for the staff to hold and operate the device by themselves, thereby driving the length of the rotation controller of the adjustment component to extend.

[0014] In a preferred embodiment, a bolt is installed through the inside of the connecting rod, and a nut is fixedly installed at the other end of the bolt.

[0015] By adopting the above technical solution, a bolt is installed through the inside of the connecting rod, and a nut is fixedly installed at the other end of the bolt. With the combination of the bolt and the nut, the bolt can penetrate through the connecting rod and the inside of the adjustment component attached to the inside of the connecting rod to connect the two. The nut is used to thread-fix the other end of the bolt protruding from the inside of the connecting rod to prevent the bolt from falling off from the inside of the connecting rod, so that the two form a whole.

[0016] In a preferred embodiment, a threaded adjustment rod is fixedly installed inside the connecting rod, and a guide rod is threadedly installed inside the threaded adjustment rod.

[0017] By adopting the above technical scheme, a threaded adjustment rod is fixedly installed on the inner side of the connecting rod, a guide rod is installed on the inner thread of the threaded adjustment rod, a combination of the threaded adjustment rod and the guide rod is adopted, the threaded adjustment rod and the guide rod are used as the installation basis of the adjustment component, and the threads of the threaded adjustment rod and the guide rod are left-handed threads, which will loosen when rotated clockwise and tighten when rotated counterclockwise. Through a threaded connection method opposite to that of the adapter component, when the adapter component is loosened clockwise, the left-handed thread of the adjustment component will not become loose due to such rotation, because it needs to be rotated counterclockwise to loosen. In this way, even if the adapter component is loosened, the adjustment component remains locked, and the threaded adjustment rod is adjusted by the length of the extension inside the guide rod through the threaded rotation, so as to improve the flexibility of the device.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0019] In the present application, the adapter threaded hole serves as the installation basis of the adapter assembly, and the inner side of the adapter threaded hole is fitted together with the docking pipe to achieve the purpose of connection and installation. The thread on the outer side of the adapter threaded hole is connected or removed by conventional clockwise tightening and counterclockwise loosening. When it is necessary to transfer pillars of different pipe diameters, the transfer between the device itself and the external pillar is achieved by replacing the adapter threaded holes of different pipe diameters on the outside. The pin passes through the docking pipe, the positioning groove and the interior of the adapter threaded hole and fits with the hole, which can fix the adapter assembly to the device itself and prevent the adapter threaded hole from shifting inside the positioning groove. By installing a component for transferring pillars of different pipe diameters in the device, single hydraulic pillars of different diameters can be allowed to be connected to each other, thereby improving the adaptability of the pillars so that they can better adapt to the support requirements under different mining conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a side-view stereoscopic structure in this application;

[0021] Figure 2 It is a schematic diagram of the top-view three-dimensional structure in this application;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing component in this application;

[0023] Figure 4 Schematic diagram of the internal structure of the adapter component in this application.

[0024] Markings in the figure: 1. Docking pipe; 2. Positioning groove; 3. Transfer threaded hole; 4. Pin; 5. Fixing block; 6. Cross screw; 7. Mounting frame; 8. Connecting rod; 9. Handle folder; 10. Handle; 11. Bolt; 12. Nut; 13. Threaded adjustment rod; 14. Guide rod. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0026] Embodiment:

[0027] Refer to Figure 1 、 Figure 3 and Figure 4 , which includes a plurality of docking pipes 1. The inside of the docking pipes 1 provides conditions for the installation and fixation of the transfer components. The positioning grooves 2 provide an installation basis for the components that fix the transfer components. By opening holes in the docking pipes 1, positioning grooves 2 and the inside of the transfer components, the fixing components can penetrate through the inside of the docking pipes 1, positioning grooves 2 and transfer components. The transfer threaded holes 3 serve as the installation basis of the transfer components. The inner side of the transfer threaded holes 3 is fitted with the docking pipes 1 to achieve the purpose of connection and installation. The threads on the outside of the transfer threaded holes 3 are connected or disassembled with the external struts in the conventional way of screwing clockwise and counterclockwise. When it is necessary to transfer struts with different pipe diameters, the transfer between the device itself and the external struts is realized by replacing the transfer threaded holes 3 with different pipe diameters on the outside. The pins 4 penetrate through the inside of the docking pipes 1, positioning grooves 2 and transfer threaded holes 3 and fit with their holes, and can fixedly connect the transfer components with the device itself to prevent the transfer threaded holes 3 from shifting inside the positioning grooves 2. The fixing blocks 5 can rotate on the outer surface of the pins 4. The width of the fixing blocks 5 is smaller than the diameter of the pins 4 to avoid the fixing blocks 5 blocking the normal installation of the pins 4 when the pins 4 penetrate through the inside of the docking pipes 1, positioning grooves 2 and transfer threaded holes 3. The inner side of the cross screws 6 penetrates through the fixing blocks 5 and the inner side of the positioning grooves 2 to provide a threaded connection. The fixing blocks 5 are connected to the inside of the positioning grooves 2 through the cross screws 6 to prevent the pins 4 from falling off from the inside of the transfer components and affecting the fixation of the transfer components. By installing components for transferring struts with different pipe diameters in this device, it is possible to allow single hydraulic struts with different diameters to be connected to each other, improving the adaptability of the struts and enabling them to better meet the support requirements under different mine conditions.

[0028] Refer to Figure 2 and Figure 3 , the installation frame 7 serves as the installation basis for the whole device and can connect all the components in the device. The installation frame 7 contains reinforcing ribs inside, which can improve its overall strength.

[0029] Refer to Figure 1The interior of the connecting rod 8 adopts a hollow pipe design, and its internal hollow area is fitted together with the adjustment component. The connecting rod 8 is used to connect the adjustment component with the operating area, so that when the staff operates the device, the adjustment component can be adjusted and changed according to the control of the staff.

[0030] Reference Figure 2 and Figure 3 A combination of a handle folder 9 and a handle 10 is adopted. The handle folder 9 can drive the handle 10 to rotate, and is used to fold the handle 10 when it is not in use, so as to prevent the handle 10 from protruding and causing harm to the staff passing by. The handle 10 is convenient for the staff to hold themselves to operate the device, thereby driving the extension length of the adjustment component rotation controller.

[0031] Reference Figure 2 and Figure 3 A combination of a bolt 11 and a nut 12 is used. The bolt 11 can penetrate the connecting rod 8 and the interior of the adjustment component that fits inside the connecting rod 8 to connect the two. The nut 12 is used to thread and fix the other end of the bolt 11 that extends out of the connecting rod 8 to prevent the bolt 11 from falling off from the inside of the connecting rod 8, so that the two form a whole.

[0032] Reference Figure 1 and Figure 2 The threads of the threaded adjustment rod 13 and the guide rod 14 are left-handed threads, which will loosen when rotated clockwise and tighten when rotated counterclockwise. Through the threaded connection method opposite to the adapter assembly, when the adapter assembly is loosened clockwise, the left-handed thread of the adjustment assembly will not become loose due to this rotation, because it needs to be rotated counterclockwise to loosen. In this way, even if the adapter assembly is loosened, the adjustment assembly remains locked. The threaded adjustment rod 13 adjusts the distance between the pillars by the length of the extension inside the guide rod 14 through threaded rotation, thereby improving the flexibility of the device.

[0033] The implementation principle of the embodiment of the hard link device for single props in coal mine underground is as follows: The inside of the docking pipe 1 provides conditions for the installation and fixation of the transfer component. The positioning groove 2 provides an installation basis for the components that fix the transfer component. By opening holes in the docking pipe 1, the positioning groove 2 and the inside of the transfer component, the fixing component can penetrate through the inside of the docking pipe 1, the positioning groove 2 and the transfer component. The transfer threaded hole 3 serves as the installation basis of the transfer component. The inner side of the transfer threaded hole 3 is fitted with the docking pipe 1 to achieve the purpose of connection and installation. The thread on the outside of the transfer threaded hole 3 is connected or disassembled with the external prop by the conventional clockwise tightening and counterclockwise loosening methods. When it is necessary to transfer props with different pipe diameters, the transfer between the device itself and the external prop is realized by replacing the transfer threaded holes 3 with different pipe diameters on the outside. The pin 4 penetrates through the inside of the docking pipe 1, the positioning groove 2 and the transfer threaded hole 3 and fits with its holes, which can fixedly connect the transfer component with the device itself and prevent the transfer threaded hole 3 from shifting inside the positioning groove 2. The fixing block 5 can rotate on the outer surface of the pin 4. The width of the fixing block 5 is smaller than the diameter of the pin 4 to prevent the fixing block 5 from blocking the normal installation of the pin 4 when the pin 4 penetrates through the inside of the docking pipe 1, the positioning groove 2 and the transfer threaded hole 3. The inner side of the cross screw 6 penetrates through the fixing block 5 and the inner side of the positioning groove 2 to provide a threaded connection. The fixing block 5 is connected to the inside of the positioning groove 2 through the cross screw 6 to prevent the pin 4 from falling off from the inside of the transfer component and affecting the fixation of the transfer component. By installing a component for transferring props with different pipe diameters in this device, it is possible to allow single hydraulic props with different diameters to be connected to each other, improving the adaptability of the props and enabling them to better meet the support requirements under different mine conditions.

[0034] The above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A single support hard link device for underground coal mines, comprising a plurality of butt joint pipes (1), characterized in that: A plurality of positioning grooves (2) are fixedly installed on the left and right outer surfaces of the docking pipe (1), and a transfer threaded hole (3) is fitted inside the docking pipe (1). A latch (4) is provided through the interior of the docking pipe (1), the positioning groove (2) and the transfer threaded hole (3), and a fixing block (5) is hingedly installed on the outer surfaces of both sides of the latch (4), and a cross screw (6) is installed through the interior of the fixing block (5).

2. The single pillar hard link device for underground coal mines according to claim 1, characterized in that: A mounting frame (7) is fixedly mounted on the inner side of the docking pipe (1).

3. The single pillar hard link device for underground coal mines according to claim 2, characterized in that: A connecting rod (8) is fixedly mounted on the inner side of the mounting frame (7).

4. The single pillar hard link device for underground coal mines according to claim 2, characterized in that: A handle folder (9) is fixedly mounted on the left and right outer surfaces of the mounting frame (7), and a handle (10) is hingedly mounted on the outer side of the handle folder (9).

5. The single pillar hard link device for underground coal mines according to claim 3, characterized in that: A bolt (11) is installed through the interior of the connecting rod (8), and a nut (12) is fixedly installed at the other end of the bolt (11).

6. The underground single pillar hard link device of coal mine as claimed in claim 3, characterized in that: A threaded adjustment rod (13) is fixedly mounted on the inner side of the connecting rod (8), and a guide rod (14) is threadedly mounted on the inner side of the threaded adjustment rod (13).

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