Supporting column base structure suitable for row support and base assembly

Abstract

The invention provides a supporting column base structure suitable for a row support and a base assembly. The supporting column base structure comprises a base body, a supporting column connecting part connected with a supporting column is formed on the base body, the supporting column connecting part is lifted to form an inserting structure, the inserting structure is used for being inserted into the end of the supporting column, the supporting column base structure further comprises a buffering part, and the buffering part is installed in the inserting structure and used for being cushioned below the end of the supporting column. According to the technical scheme, the insertion structure formed by lifting is arranged in the supporting column base structure, and effective guiding of the end of the supporting column is achieved. The insertion structure ensures that the buffer part can be stably installed in the insertion structure, and the supporting column vertically moves under the impact load, so that the dynamic cooperation of the buffer part and the supporting column is ensured. When mine rock burst or rockburst occurs, the buffer component can rapidly contract and absorb huge impact energy, instantaneous stress of the supporting column is remarkably relieved, and damage to an equipment structure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment, and in particular to a support column base structure and a base assembly suitable for a row of brackets. Background Art

[0002] The gang support is an innovative equipment used for temporary support during mining, which is designed to improve the safety and efficiency of tunnel support operations. Traditional temporary support equipment supports the roof through telescopic support columns, but due to the uneven floor of the tunnel, the telescopic support columns are prone to sliding or tilting, which poses a risk of tipping and high maintenance costs. By introducing guide columns in the equipment, the stability and safety of the support equipment are optimized. The mechanical strength of the guide column is significantly higher than that of the telescopic support column. It can provide additional support when the support column slides and causes the equipment to tilt, preventing the equipment from continuing to tilt, ensuring construction safety and reducing equipment damage and maintenance costs. In addition, the flexible design of the guide column enables it to adapt to height changes when the support moves, so as not to hinder the flexible operation of the support.

[0003] In Chinese patent CN109578040B, the row bracket is composed of two brackets, the strip top beams of the two brackets are arranged at intervals, and the two brackets support the same top plate. When one of them supports the top plate, the other one moves forward, providing uninterrupted support force for the top plate. It is composed of a first bracket, a second bracket, a driving device, a telescopic support column and a guide column, wherein the guide column is fixedly connected to the bracket and adapts to the dynamic adjustment of the bracket through a sliding or hinged mechanism. The design height of the guide column is usually slightly lower than the telescopic support column to provide sufficient operating space when the bracket moves forward or backward. During the support operation, the guide column can bear the tilting force of the equipment, thereby protecting the telescopic support column from bending or breaking. In order to enhance the stability of the equipment, the guide column is usually made of hollow or solid high-strength material, and contacts with the roadway floor through the base to expand the contact area and enhance the overall balance of the equipment. According to the requirements of the roadway operation, the guide column can be set before and after the bracket or distributed between multiple rows of telescopic support columns to ensure the stability and flexibility of the equipment.

[0004] The introduction of guide columns in the row bracket solves the problem of sliding and tipping of traditional support equipment in uneven tunnels, significantly improving the safety and economy of the support system. Its modular design is easy to adjust and can adapt to the support needs of different tunnels, reducing the cost of equipment replacement and adjustment. The optimized distribution of guide columns enhances the force distribution of the equipment, allowing it to maintain stability and reliability during high-load operations. This technology has broad application prospects in the fields of mineral mining, tunnel support, etc., and is particularly suitable for environments with complex geological conditions or limited working space.

[0005] In a mine, rock burst (mine shock or rock burst) is an extreme geological phenomenon. When this strong shock wave occurs, the entire mine structure faces tremendous pressure. The hydraulic support system often cannot respond in time in this case, because the instantaneous huge pressure generated by the mine shock will quickly cause the surrounding rock roof to drop and produce a violent impact in less than 0.1 seconds. The adjustment speed of the hydraulic system is far behind this change, resulting in the support structure being unable to effectively resist the impact and eventually being washed away or destroyed.

[0006] This phenomenon shows that the design of the traditional row support system has serious safety hazards. Especially in the face of sudden mine earthquakes or rock bursts, the reaction speed of the hydraulic support column is far from enough to effectively absorb and disperse the impact energy, resulting in rapid damage to the support structure. The existing tunnel support is not equipped with effective buffer components, lacks the ability to adapt to instantaneous impacts, and cannot protect miners and equipment from the serious impact of mine earthquake disasters. It is urgently needed to improve the overall safety and impact resistance. Summary of the invention

[0007] The main purpose of the present invention is to provide a support column base structure and a base assembly suitable for a row bracket to solve the problem of poor impact resistance of the row brackets in the prior art when facing impact ground pressure.

[0008] In order to achieve the above-mentioned purpose, the present invention provides a support column base structure suitable for a row bracket, including a base body, a support column connecting part connected to the support column is formed on the base body, the support column connecting part is raised to form a plug-in structure, the plug-in structure is used to be inserted into the end of the support column, and the support column base structure also includes a buffer component, which is installed in the plug-in structure and is used to pad under the end of the support column.

[0009] Furthermore, the support column base structure also includes a limiting ring, which is fixedly installed in the plug-in structure and located above the buffer component. The bottom of the limiting ring is used to cooperate with the end of the support column to limit the end of the support column in the plug-in structure.

[0010] Furthermore, the support column base structure also includes a limit ring fixing pin, the limit ring is fixed in the plug-in structure through the limit ring fixing pin, and a socket structure that matches the limit ring fixing pin is formed on the limit ring and the plug-in structure.

[0011] Furthermore, the limiting ring is an integrated ring structure; or the limiting ring includes a plurality of tile-like structures, and the plurality of tile-like structures constitute a split ring structure.

[0012] Furthermore, the buffer component is a spring buffer component or a rubber buffer component.

[0013] Furthermore, the rubber-type buffer component includes an elastic support ring and a plurality of partitions arranged in the elastic support ring, and an air chamber is formed between two adjacent partitions.

[0014] Furthermore, an exhaust hole is provided on the plug-in structure.

[0015] In order to achieve the above object, according to one aspect of the present invention, a support column base assembly is provided, including a support column base structure, the support column base structure is the above support column base structure, the support column base assembly includes a support column, and a limited position through groove is provided on the insertion part of the support column inserted into the plug-in structure, and the limited position through groove is arranged along the vertical direction;

[0016] The support column base structure also includes a limiting pin, which passes through the plug-in structure and the limiting through slot to limit the insertion part in the plug-in structure.

[0017] In order to achieve the above object, according to one aspect of the present invention, a single support column base suitable for a row of brackets is provided, including a base, on which a support column base structure is provided, and the support column base structure is the above-mentioned support column base structure.

[0018] Furthermore, a support column base structure is formed in the middle of the base, and guide column connecting parts connected to the two guide columns are respectively formed on both sides of the support column base structure.

[0019] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a double support column base suitable for a row bracket is provided, including a base, two support column base structures are arranged on the base at intervals, and a guide column connecting part connected to the guide column is also arranged on the base, the support column base structure is the above-mentioned support column base structure, and the guide column connecting part is located between the two support column base structures.

[0020] Furthermore, the guide column connection part and the support column connection part are raised to the same height together to form a plug-in structure in the support column connection part.

[0021] By applying the technical solution of the present invention, an elevated plug-in structure is provided in the support column base structure, thereby achieving effective guidance of the end of the support column. It is also an effective guide for the support column. The design of the plug-in structure ensures that the buffer component can be firmly installed inside it, allowing the support column to move vertically under impact loads, thereby ensuring dynamic coordination between the buffer component and the support column. When impact ground pressure or rock burst occurs in a mine, the buffer component can quickly shrink and absorb huge impact energy, significantly alleviating the instantaneous stress on the support column and avoiding damage to the equipment structure. Since the buffer component is placed at the bottom of the plug-in structure, or more accurately, at the position closest to the surrounding rock bottom plate, the vibration caused by the eccentric load force in all directions generated by the flattening of the buffer component when the bracket is impacted is minimized, and the bracket is subjected to less destructive force.

[0022] The technical solution of the present invention can quickly handle accidents and resume production. The surrounding rock top plate with little surface crushing pressure can be gently supported by elastic supporting force with good effect.

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

[0024] The accompanying drawings constituting a part of the present invention 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 an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It shows a structural schematic diagram of a first embodiment of a support column base structure applicable to a row bracket according to the present invention;

[0026] Figure 2 It shows a structural schematic diagram of a second embodiment of a support column base structure applicable to a row bracket according to the present invention;

[0027] Figure 3 A structural schematic diagram of an embodiment of a support column base assembly according to the present invention is shown;

[0028] Figure 4 A schematic structural diagram of an embodiment of a single support column base applicable to a row of brackets according to the present invention is shown;

[0029] Figure 5 A structural schematic diagram showing another embodiment of a single support column base applicable to a row of brackets according to the present invention;

[0030] Figure 6 A schematic structural diagram of an embodiment of a double support column base applicable to a row bracket according to the present invention is shown;

[0031] Figure 7 A structural schematic diagram showing another embodiment of a double support column base applicable to a row bracket according to the present invention;

[0032] Figure 8 A schematic structural diagram of an embodiment of a three-support column base applicable to a row bracket according to the present invention is shown;

[0033] Fig. 9 A structural schematic diagram of another embodiment of a three-support column base suitable for a row of brackets according to the present invention is shown. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments 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.

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Figure 1 The first embodiment of the support column base structure suitable for the row bracket of the present invention is shown, the support column base structure includes a base body, a support column connecting part 20 connected to the support column 10 is formed on the base body, the support column connecting part 20 is raised to form a plug-in structure 21, the plug-in structure 21 is used to be inserted into the end of the support column 10, the support column base structure also includes a buffer component 30, the buffer component 30 is installed in the plug-in structure 21 to pad under the end of the support column 10.

[0039] By applying the technical solution of the present invention, an elevated plug-in structure 21 is provided in the support column base structure, thereby achieving effective guidance of the end of the support column 10. The design of the plug-in structure 21 ensures that the buffer component 30 can be firmly installed inside it, allowing the support column 10 to move vertically under impact loads, thereby ensuring dynamic coordination between the buffer component 30 and the support column 10. When impact ground pressure or rock burst occurs in a mine, the buffer component 30 can shrink quickly and absorb huge impact energy, significantly alleviating the instantaneous stress on the support column 10 and avoiding damage to the equipment structure. Since the buffer component 30 is placed at the bottom of the plug-in structure 21, or more accurately, at the position closest to the surrounding rock bottom plate, the vibration caused by the flattening of the buffer component when the bracket is impacted is minimized.

[0040] In addition, the buffer component 30 is located below the end of the support column 10, and its vertical movement path is guided by the plug-in structure 21. When the mine impact ground pressure occurs, the buffer component 30 is compressed and quickly shrinks in the first time, and the bracket also quickly drops a distance, thus avoiding strong impact to damage the bracket.

[0041] It should be noted that the independent design of the buffer component 30 and the support column 10 also facilitates quick replacement, and the buffer component 30 reduces the downtime of underground operations. Through the above-mentioned optimized design, the support column base structure can better adapt to the complex mine operating environment and significantly improve the safety and reliability of the support system.

[0042] The plug-in structure 21 guides the movement of the buffer component 30 and the support column 10 in a direction perpendicular to the surrounding rock bottom plate, so that the row bracket has the function of energy absorption and impact protection, and can be used in various underground working faces such as excavation, advance, end, and even coal mining working faces with impact ground pressure.

[0043] As a more optional implementation, Figure 1 As shown, the support column base structure also includes a limit ring 40, which is fixedly installed in the plug-in structure 21 and is located above the buffer component 30. The bottom of the limit ring 40 is used to cooperate with the end of the support column 10 to limit the end of the support column 10 in the plug-in structure 21. By arranging the limit ring 40 in the support column base structure, the end of the support column 10 is effectively limited, so that it remains stable in the plug-in structure 21. The limit ring 40 is fixedly installed in the plug-in structure 21 and is located above the buffer component 30. When the support column 10 is subjected to impact force or non-vertical load, it can limit the unexpected movement of its end and prevent the support column 10 from sliding upward and disengaging from the plug-in structure 21.

[0044] In use, the end of the support column 10 moves downward as the compression spring contracts, so the diameter of the end of the support column 10 is larger than the diameter of the support column 10. By providing a limit ring 40 to cooperate with the end of the support column 10, the support column 10 is allowed to slide downward when compressed, and does not move upward, so that it cannot be separated from the seat.

[0045] More preferably, in the technical solution of the first embodiment, the support column base structure also includes a limit ring fixing pin 50, and the limit ring 40 is fixed in the plug-in structure 21 through the limit ring fixing pin 50, and a socket structure that cooperates with the limit ring fixing pin 50 is formed on the limit ring 40 and the plug-in structure 21. By providing the limit ring fixing pin 50, the fixing reliability of the limit ring 40 in the plug-in structure 21 is further enhanced. The limit ring fixing pin 50 cooperates with the limit ring 40 and the socket structure on the plug-in structure 21 to achieve a stable installation of the limit ring 40, avoiding displacement or loosening due to impact or vibration, thereby ensuring the limiting effect of the end of the support column 10 in the plug-in structure 21. At the same time, this design simplifies the installation and disassembly process of the limit ring 40, facilitates the maintenance of the equipment and the replacement of the buffer component 30,

[0046] Optionally, the limiting ring 40 is an integrated annular structure. As another optional embodiment, the limiting ring 40 includes a plurality of tile-like structures, and the plurality of tile-like structures form a split annular structure. The limiting ring 40 with an integrated annular structure has strong integrity, can provide stable support and limiting effects, and is suitable for conventional working environments; while the split tile-like structure is easy to disassemble and install, and is particularly suitable for working scenarios with limited space or requiring rapid disassembly and assembly. Multiple tile-like structures are combined to form a split annular structure, which can ensure that the limiting ring 40 improves the efficiency of installation and maintenance without reducing the limiting strength. Optionally, in the present embodiment, the split annular structure is composed of two tile-like structures.

[0047] like Figure 1 As shown, in the technical solution of embodiment 1, the buffer component 30 is a spring-type buffer component. The spring-type buffer component can provide a quantitative and controllable flexible supporting force, and when subjected to impact ground pressure, it will shrink rapidly, absorb and disperse the impact energy, and at the same time, its long-term stable elastic force ensures reliable support effect and low maintenance cost. The spring-type buffer component has a quantitative and controllable soft supporting force, and can gently contact the top surrounding rock without using excessive force for the best effect. The spring-type buffer component is the simplest and most feasible solution, and the spring force is a fixed force that is not easy to change for a long time. It is more accurate and stable than hydraulic fluid supply control, and the cost is low. It is effective when used for surrounding rocks with very broken surfaces and low pressure.

[0048] like Figure 2As shown, the present invention further provides a second embodiment of a support column base structure suitable for a row bracket. The second embodiment is different from the first embodiment only in that the buffer component 30 is a rubber buffer component.

[0049] Preferably, the rubber-type buffer component includes an elastic support ring 31 and a plurality of interlayers 32 arranged in the elastic support ring 31, and an air chamber is formed between two adjacent interlayers 32. By arranging the elastic support ring 31 and the plurality of interlayers 32 in the rubber-type buffer component, the energy absorption performance and structural stability are effectively improved. The elastic support ring 31 provides external support force for the buffer component to ensure that it can maintain a stable shape when subjected to force, and the design of the plurality of interlayers 32 forms independent air chambers inside the support ring 31, which can effectively absorb and buffer energy through compression or deformation when subjected to impact loads, thereby dispersing the impact force and reducing the stress pressure on the support column 10 and the plug-in structure 21. The layered design of the air chamber can also prevent the buffer component from losing its overall function due to local damage, further improving the reliability of the system. In addition, by adjusting the number of interlayers 32 and the volume of the air chamber, the structure can adapt to different impact energy absorption requirements, significantly improve the impact resistance and operation safety of the row bracket, and meet the use requirements of complex mine environments.

[0050] As an optional embodiment not shown in other figures, the buffer component 30 can also be a sheet metal structure anti-impact energy absorbing component. The advantage of this type of buffer component is that the anti-impact energy absorbing component constructed by the sheet metal structure is the ability to absorb impact through its own irreversible deformation, so that the impact force will no longer be returned to the support column 10, and the effect of absorbing impact force is better. A support column costs nearly 10,000 yuan, and the cost of the sheet metal structure anti-impact energy absorbing component is very low. Whenever the sheet metal structure anti-impact energy absorbing component is worn out, it can be replaced with a new one, which can greatly save costs, and can better solve the cost problem of the support column being easily damaged.

[0051] In addition to the types of buffer components 30 listed above, it is also feasible to use a threaded tube energy absorbing component.

[0052] More preferably, in the technical solution of the second embodiment, an exhaust hole 211 is provided on the plug-in structure 21. The design of the exhaust hole 211 can effectively release the high-pressure gas generated by the buffer component 30 when it is compressed, so as to avoid the buffering effect of the buffer component 30 being hindered due to the inability to quickly discharge the gas. This structure significantly improves the dynamic response capability of the buffer component 30, enabling it to quickly shrink and release pressure under sudden loads such as mine impact ground pressure. It should be noted that when a rubber-type buffer component is used, the exhaust hole structure may not be used; when a spring or sheet metal structure anti-impact energy-absorbing component is used, more consideration should be given to the use of the exhaust hole structure.

[0053] Figure 3The embodiment of the support column base assembly of the present invention is shown, the support column base assembly includes a support column base structure, the support column base structure is the support column base structure mentioned above, the support column base assembly includes a support column 10, and a limiting slot 111 is provided on the insertion part 11 of the support column 10 inserted into the plug-in structure 21, and the limiting slot 111 is arranged along the vertical direction; the support column base structure also includes a limiting pin 60, and the limiting pin 60 passes through the plug-in structure 21 and the limiting slot 111 to limit the insertion part 11 in the plug-in structure 21. By providing the limiting slot 111 along the vertical direction on the insertion part 11 of the support column 10, and combining the design of the limiting pin 60, the limiting movement of the support column 10 in the plug-in structure 21 is realized. The limiting pin 60 passes through the plug-in structure 21 and the limiting slot 111, which can effectively prevent the support column 10 from being laterally displaced or disengaged when subjected to force or impact, and at the same time allows it to perform limited vertical movement along the direction of the limiting slot 111. In addition, the matching design of the limiting pin 60 and the limiting through slot 111 can also simplify the disassembly, assembly and maintenance of the support column 10, thereby improving the adaptability of the support column base assembly.

[0054] like Figure 3 As shown, a plug-in hole for installing the limiting pin 60 is opened on the plug-in structure 21 , and the exhaust hole 211 is formed on the plug-in hole of the limiting pin 60 .

[0055] like Figure 3 As shown, optionally, in this embodiment, the insertion portion 11 of the support column 10 is an additional extension section welded to the bottom of the support column 10. As another optional embodiment, the insertion portion 11 can also be an integral structure with other parts of the support column 10.

[0056] Optionally, the processing method of the limiting groove 111 is to process two limiting grooves 111 on the same transverse center line on the insertion part 11, and the circumferential angle between the two limiting grooves 111 is 180°. The limiting pin 60 passes through the circular hole of the side of the base and then passes through the two limiting grooves 111, and presses the arc processing surface of the lowest point of the limiting groove 111 of the extended section of the support column 10. Such a structure also has the effect that the support column 10 cannot move upward due to being pressed by the limiting pin 60 during normal use, and the support column 10 and the buffer component 30 move downward at the same time when impact ground pressure occurs. If the increased plug-in structure 21 is a circular groove, in order to discharge the high-pressure gas generated by the energy-absorbing and anti-impact component being flattened when impact ground pressure occurs, the hole of the base limiting pin 60 is designed to be large enough to exhaust gas, or the hole of the base limiting pin 60 can be processed into a long hole extending downward, and exhaust gas can also be discharged along the long hole part. Of course, the opening above the plug-in structure 21 can also shoot a part of the gas.

[0057] It should be noted that the structure of the buffer component 30 installed in the base is very simple. Once damaged, the limit pin 60 is pulled out on the ground working surface, the control valve is moved to raise the cylinder of the support column 10 and separate it from the base, the damaged buffer component 30 is taken out and a spare part is put in, and the control valve is moved again to drop the support column 10 into the base, and the limit pin 60 is installed. Replacing a buffer component is easy and can be completed by one person in a few minutes, which is beneficial to resuming production.

[0058] like Figure 4 As shown, the present invention also provides an embodiment of a single support column base suitable for a row bracket, the single support column base includes a base, a support column base structure is provided on the base, and the support column base structure is the support column base structure mentioned above. The single support column base ensures a stable connection between the support column 10 and the base by providing a support column base structure on the base. The plug-in structure 21 in the support column base structure effectively guides the vertical movement of the support column 10, and at the same time cooperates with the buffer component 30 to absorb and buffer energy when subjected to force, thereby improving the impact resistance of the base and significantly improving the stability and safety of the row bracket. Figure 2 and Figure 3 The method of fixing the support column can be selected arbitrarily in actual use.

[0059] like Figure 5 As shown, the present invention also provides another embodiment of a single support column base suitable for a row bracket, and the difference between this embodiment and the above embodiment is that in this embodiment, a support column base structure is formed in the middle of the base, and guide column connecting parts 80 connected to two guide columns 70 are formed on both sides of the support column base structure, which significantly improves the stability and impact resistance of the overall bracket. The symmetrical arrangement of the guide column connecting parts 80 evenly distributes the force of the equipment and enhances the balance and adaptability of the bracket in complex lanes.

[0060] As an optional embodiment of a single support column base suitable for a row bracket, the support column connection part 20 is raised relative to the guide column connection part 80 to form a plug-in structure 21. As another optional embodiment of a single support column base suitable for a row bracket, the guide column connection part 80 and the support column connection part 20 are raised to the same height to form a plug-in structure 21 in the support column connection part 20.

[0061] like Figure 6As shown, the present invention also provides a double support column base suitable for a row bracket, the double support column base includes a base, two support column base structures are arranged at intervals on the base, a guide column connecting portion 80 connected to the guide column 70 is also arranged on the base, the support column base structure is the above-mentioned support column base structure, and the guide column connecting portion 80 is located between the two support column base structures. By arranging two support column base structures at intervals on the base, and arranging the guide column connecting portion 80 connected to the guide column 70 between them, the stability and impact resistance of the double support column structure are effectively enhanced. The two support columns 10 are respectively connected to the support column base structure on the base, providing strong supporting force in the vertical direction, evenly distributing the load, and reducing the risk of equipment tilting or instability. This design of the combination of double support columns and guide columns 70 not only optimizes the force distribution of the bracket, but also ensures that under extreme conditions such as mine rock burst, the buffer component 30 can quickly respond and absorb impact energy to protect the bracket from damage.

[0062] like Figure 7 As shown, the present invention also provides another embodiment of a double support column base suitable for a row bracket, in which the guide column connection part 80 and the support column connection part 20 are raised to the same height to form a plug-in structure 21 in the support column connection part 20. By designing the guide column connection part 80 and the support column connection part 20 to be the same height and forming the plug-in structure 21 in the support column connection part 20, efficient coordination between the guide column 70 and the support column 10 is achieved. The guide column connection part 80 is consistent in height with the support column connection part 20, so that the force on the base structure is more uniform, which significantly improves the overall stability of the bracket. In the plug-in structure 21, the support column 10 and the guide column 70 can be stressed at the same time and maintain dynamic response capabilities, thereby effectively resisting impact loads during mine operations.

[0063] As another embodiment of a double support column base suitable for a row bracket which is not shown in the figure, in this embodiment, the support column connecting portion 20 is raised relative to the guide column connecting portion 80 to form a plug-in structure 21.

[0064] like Figure 8 As shown, the present invention also provides a three-support column base suitable for a row bracket, the three-support column base includes a base, three support column base structures are arranged at intervals on the base, two guide column connecting parts 80 connected to the guide column 70 are also arranged on the base, the support column base structure is the above-mentioned support column base structure, each guide column connecting part 80 is arranged between two adjacent support column base structures, and the support column connecting part 20 is raised relative to the guide column connecting part 80 to form a plug-in structure 21. Compared with other embodiments, the dense arrangement of more support columns 10 and more guide columns 70 in this embodiment is more suitable for dealing with top surrounding rocks with high pressure and strong impact force.

[0065] like Fig. 9 As shown, the present invention also provides another optional embodiment of a three-support column base suitable for a coupling bracket. In this embodiment, the guide column connecting part 80 and the support column connecting part 20 are raised to the same height to form a plug-in structure 21 in the support column connecting part 20.

[0066] It should be noted that, in the above description, "the support column connection part 20 is raised relative to the guide column connection part 80" includes two feasible structures. The first feasible structure is that the guide column connection part 80 maintains the same height as in the prior art, and only the support column connection part 20 is raised; the second feasible structure is that the guide column connection part 80 is also raised compared to the same height in the prior art, but the height of the raised support column connection part 20 is higher than that of the guide column connection part 80. In the second feasible structure, the higher guide column connection part 80 can also have a better fixing effect on the guide column.

[0067] It should also be noted that the technical solution of the present invention can be used for all brackets in which the support column 10 is raised and lowered perpendicular to the surrounding rock bottom plate, that is, the support column 10 does not change the inclination angle as the support column 10 changes in its own height during use.

[0068] Optionally, the plug-in structure 21 can be a square groove. As another optional embodiment, the plug-in structure 21 can also be a circular groove, and the depth of the plug-in structure 21 is at least 2-3 times the depth of the mounting hole of the support column or guide column of the existing base. More preferably, the size of the plug-in structure 21 should correspond to the size of the end of the support column, so as to help reduce the gap. In this way, the lengthening of the positioning height of the plug-in structure 21 reduces the lateral shaking of the fixed support column and guide column 70 to a very small amount. When the bracket walks on the uneven surrounding rock bottom plate, all the support components fall vertically according to their positions and fix their positions, and no small distance sliding and flipping will occur in the front, back, left and right directions. The stability of the bracket is greatly improved. There will be no lateral shaking, or the rear base and the front base will overlap the base when moving forward. After the buffer component 30 is placed in the plug-in structure 21, a small section of the support column 10 is also inserted into the groove, so that the support column 10 is directly or indirectly pressed on the top of the energy absorbing member. The increased plug-in structure 21 protects the buffer component 30 and provides a channel for the buffer component 30 and the support column 10 to move downward to the lowest position.

[0069] It should be noted that when the plug-in structure 21 is a square groove, the four corners of the square groove can be used as exhaust channels for punching the support column 10. When the plug-in structure 21 is a cylindrical groove, the exhaust channel of the exhaust hole 211 should be considered. These two exhaust channels can be suitable for spring-type buffer components or rubber-type buffer components.

[0070] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0071] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0072] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support column base structure suitable for a row bracket, comprising a base body, on which a support column connecting portion (20) connected to a support column (10) is formed, characterized in that: The support column connecting portion (20) is raised to form a plug-in structure (21), and the plug-in structure (21) is used to be inserted into the end of the support column (10). The support column base structure also includes a buffer component (30), and the buffer component (30) is installed in the plug-in structure (21) and is used to cushion under the end of the support column (10).

2. The support column base structure suitable for the row bracket according to claim 1, characterized in that: The support column base structure also includes a limiting ring (40), which is fixedly installed in the plug-in structure (21) and is located above the buffer component (30), and the bottom of the limiting ring (40) is used to cooperate with the end of the support column (10) to limit the end of the support column (10) in the plug-in structure (21).

3. The support column base structure suitable for the row bracket according to claim 2, characterized in that: The support column base structure also includes a limit ring fixing pin (50), the limit ring (40) is fixed in the plug-in structure (21) through the limit ring fixing pin (50), and a socket structure that matches the limit ring fixing pin (50) is formed on the limit ring (40) and the plug-in structure (21).

4. The support column base structure suitable for the row bracket according to claim 2, characterized in that: The limiting ring (40) is an integrated annular structure; or the limiting ring (40) includes a plurality of tile-like structures, and the plurality of tile-like structures form a split annular structure.

5. The support column base structure suitable for the row bracket according to claim 1, characterized in that: The buffer component (30) is a spring-type buffer component or a rubber-type buffer component or a sheet metal structure anti-impact energy absorption component.

6. The support column base structure suitable for the row bracket according to claim 5, characterized in that: The rubber-type buffer component comprises an elastic support ring (31) and a plurality of partitions (32) arranged in the elastic support ring (31), and an air chamber is formed between two adjacent partitions (32).

7. The support column base structure suitable for the row bracket according to claim 6, characterized in that: The plug-in structure (21) is provided with an exhaust hole (211).

8. A support column base assembly, comprising a support column base structure, characterized in that: The support column base structure is the support column base structure according to claim 1, the support column base assembly comprises a support column (10), a limiting through groove (111) is provided on the insertion portion (11) of the support column (10) inserted into the plug-in structure (21), and the limiting through groove (111) is arranged along the vertical direction; The support column base structure also includes a limiting pin (60), and the limiting pin (60) passes through the plug-in structure (21) and the limiting through slot (111) to limit the insertion part (11) in the plug-in structure (21).

9. A single support column base suitable for a row bracket, comprising a base, on which a support column base structure is provided, characterized in that: The support column base structure is the support column base structure according to any one of claims 1 to 7.

10. The single support column base suitable for the row bracket according to claim 9, characterized in that: The support column base structure is formed in the middle of the base, and guide column connecting parts (80) connected to two guide columns (70) are respectively formed on both sides of the support column base structure; The support column connection portion (20) is raised relative to the guide column connection portion (80) to form the plug-in structure (21); Alternatively, the guide column connection portion (80) and the support column connection portion (20) are raised together to the same height to form the plug-in structure (21) in the support column connection portion (20).

11. A double support column base suitable for a row bracket, comprising a base, two support column base structures are arranged on the base at intervals, and a guide column connecting portion (80) connected to a guide column (70) is also arranged on the base, characterized in that: The support column base structure is the support column base structure according to any one of claims 1 to 7, and the guide column connecting portion (80) is located between two of the support column base structures; The support column connection portion (20) is raised relative to the guide column connection portion (80) to form the plug-in structure (21); Alternatively, the guide column connection portion (80) and the support column connection portion (20) are raised together to the same height to form the plug-in structure (21) in the support column connection portion (20).

12. A three-support column base suitable for a row bracket, comprising a base, on which three support column base structures are arranged at intervals, and on which two guide column connecting parts (80) connected to the guide columns (70) are also arranged, characterized in that: The support column base structure is the support column base structure according to any one of claims 1 to 7, and each of the guide column connecting parts (80) is arranged between two adjacent support column base structures; The support column connection portion (20) is raised relative to the guide column connection portion (80) to form the plug-in structure (21); Alternatively, the guide column connection portion (80) and the support column connection portion (20) are raised together to the same height to form the plug-in structure (21) in the support column connection portion (20).

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