Double-supporting-column base and single-supporting-column base suitable for height-increasing row support

Abstract

The invention provides a double-supporting-column base and a single-supporting-column base which are suitable for a row support capable of being heightened. The double-supporting-column base comprises a base body, a guiding column connecting part connected with the guiding column is formed in the middle of the base body, supporting column connecting parts connected with the two supporting columns are formed on the two sides of the base body respectively, the supporting column connecting parts are lifted to form inserting structures, and the inserting structures are used for being inserted into the ends of the supporting columns. According to the technical scheme, the supporting column connecting part of the double-supporting-column base is lifted to form the inserting structure, and the stability of connection between the supporting columns and the base is remarkably improved. The inserting structure provides a deeper inserting depth, so that the end part of the supporting column can be deeply inserted, the movable clearance amount between the supporting column and the base is reduced, the phenomena of transverse sliding and front-back shaking are inhibited or reduced, and when the bracket runs on an uneven surrounding rock bottom plate, each supporting assembly can be stably kept at a vertical position.

Description

Technical Field

[0001] The invention relates to the technical field of mining equipment, and in particular to a double-support column base and a single-support column base suitable for a height-increasable row bracket. 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 tunnel floor through the base to expand the contact area and enhance the overall balance of the equipment. According to the requirements of the tunnel 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] Figure 1The bottom structure schematic diagram of the double support column support assembly is shown. Figure 2 The bottom structure schematic diagram of the single support column support assembly is shown. It can be seen that the rectangular base design used in the existing row brackets is mainly focused on preventing the bracket from sinking and fitting the surrounding rock bottom plate, but does not fully consider the problem of providing precise positioning for the support assembly. In the current design, the height of the base 1 is generally short, about 200 mm, and the main purpose is to ensure that the support column 2 and the guide column 3 can remain connected in the up and down directions without separating from the base 1 through the fixing pin. However, due to the short base 1 and the large plug-in gap between the support column 2 and the guide column 3, the fixing pin cannot be accurately controlled during the plug-in process, resulting in the stability of the support assembly being affected.

[0006] This design with large gap and short control length makes the support assembly easy to swing back and forth after the base is installed, making the overall structure change from a rectangle to an unstable parallelogram at any time, accompanied by flipping and sliding in the left and right directions. Although this design allows the base to adapt to terrain changes and fit irregular ground to a certain extent, the frequent twisting problem can easily cause the fixing pin to be bent during operation, and even the column head of the support column to be broken, affecting the overall stability and safety of the bracket.

[0007] In view of the above problems, it is necessary to optimize the base design and improve the stability of the base connection. Summary of the invention

[0008] The main purpose of the present invention is to provide a double-support column base and a single-support column base suitable for a row of brackets that can be increased in height, so as to solve the problem of low stability of the base structure of the row of brackets in the prior art.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a double support column base suitable for a row bracket that can be increased in height, including a base body, a guide column connecting part connected to the guide column is formed in the middle of the base body, and support column connecting parts connected to two support columns are respectively formed on both sides of the base body, characterized in that the support column connecting part is raised to form a plug-in structure, and the plug-in structure is used to insert the end of the support column.

[0010] Furthermore, the double support column base includes at least one support column fixing pin, and at least one pair of sockets matching with the support column fixing pin are formed on the plug-in structure. The support column fixing pin passes through the end of the support column and matches with the socket to fix the support column.

[0011] Furthermore, the support column has two fixing pins and two pairs of sockets, and the projections of the two pairs of sockets on the horizontal plane are cross-distributed and staggered in the height direction.

[0012] Furthermore, the double support column base also includes a cushion block, which is arranged at the bottom of the plug-in structure.

[0013] Furthermore, the support column connection part is raised relative to the guide column connection part to form a plug-in structure, or the support column connection part and the guide column connection part are raised to the same height together to form a plug-in structure in the support column connection part.

[0014] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a single support column base suitable for a row bracket that can be increased in height is provided, including a base body, on which is formed a support column connecting portion connected to the support column, the support column connecting portion is raised to form a plug-in structure, and the plug-in structure is used to insert the end of the support column.

[0015] Furthermore, the single support column base includes at least one support column fixing pin, and at least one pair of sockets matching with the support column fixing pin are formed on the plug-in structure. The support column fixing pin passes through the end of the support column and matches with the socket to fix the support column.

[0016] Furthermore, the support column has two fixing pins and two pairs of sockets, and the projections of the two pairs of sockets on the horizontal plane are cross-distributed and staggered in the height direction.

[0017] Furthermore, the single support column base also includes a cushion block, which is arranged at the bottom of the plug-in structure.

[0018] Furthermore, a support column connection portion is formed in the middle of the seat body, and guide column connection portions connected to the two guide columns are respectively formed on both sides of the seat body. The support column connection portion is higher than the guide column connection portion to form a plug-in structure, or the support column connection portion and the guide column connection portion are raised to the same height to form a plug-in structure in the support column connection portion.

[0019] By applying the technical solution of the present invention, the connection between the support column and the base is significantly improved by raising the plug-in structure at the connection part of the support column. The plug-in structure provides a deeper plug-in depth, so that the end of the support column can be deeply inserted, thereby reducing the gap between the support column and the base, avoiding lateral sliding and front and back shaking, and ensuring that each support component can stably maintain a vertical position when the bracket is running on an uneven surrounding rock bottom plate. This design effectively avoids the problem of bracket instability caused by sliding or flipping, and at the same time greatly reduces the stress concentration phenomenon of the fixed pin shaft, extending its service life.

[0020] 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

[0021] 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:

[0022] Figure 1 A schematic diagram of the bottom structure of a double support column support assembly in the prior art is shown;

[0023] Figure 2 A schematic diagram of the bottom structure of a single support column support assembly in the prior art is shown;

[0024] Figure 3 It shows a structural schematic diagram of a first embodiment of a double support column base applicable to a row bracket capable of being increased in height according to the present invention;

[0025] Figure 4 Shows Figure 3 A schematic cross-sectional structure diagram of a support column connection portion of a double support column base;

[0026] Figure 5 Shows Figure 3 A schematic cross-sectional view of another support column connection portion of a double support column base;

[0027] Figure 6 It shows a structural schematic diagram of a second embodiment of a double support column base applicable to a row bracket capable of being increased in height according to the present invention;

[0028] Figure 7 It shows a structural schematic diagram of a third embodiment of a single support column base applicable to a row of brackets capable of being increased in height according to the present invention;

[0029] Figure 8 A structural schematic diagram of a fourth embodiment of a single support column base suitable for height-increasable row brackets according to the present invention is shown. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Figure 3 This is the first embodiment of the double support column base of the present invention that is suitable for a row of brackets that can be increased in height. The double support column base includes a base body, a guide column connecting portion 10 connected to the guide column is formed in the middle of the base body, and support column connecting portions 20 connected to the two support columns are respectively formed on both sides of the base body. The support column connecting portion 20 is raised to form a plug-in structure 21, and the plug-in structure 21 is used to insert the end of the support column.

[0035] By applying the technical solution of the present invention, the connection between the support column and the base is significantly improved by raising the support column connection part 20 of the double support column base to form a plug-in structure 21. The plug-in structure 21 provides a deeper plug-in depth, so that the end of the support column can be deeply inserted, thereby reducing the gap between the support column and the base, avoiding lateral sliding and front and back shaking, and ensuring that each support component can stably maintain a vertical position when the bracket is running on an uneven surrounding rock bottom plate. This design effectively avoids the problem of bracket instability caused by sliding or flipping, and at the same time greatly reduces the stress concentration phenomenon of the fixed pin shaft, extending its service life.

[0036] The present invention improves the positioning reference function of the base and the support column to prevent them from sliding horizontally in the front, back, left and right directions. The specific implementation method is to increase the height of the support column connection to form a plug-in structure 21, so that the support column or the guide column is deeply inserted into the plug-in structure 21 of the base. Optionally, the plug-in structure 21 is a groove. In a specific embodiment, the plug-in structure 21 can be a square groove. As another optional implementation, the plug-in structure 21 can also be a circular groove. In a specific embodiment, the depth of the plug-in structure 21 is at least 2-3 times the depth of the support column or guide column mounting hole of the existing base. The depth of the support column or guide column mounting hole of the existing base is relatively shallow and is only used to connect the support column or guide column through a connector.

[0037] More preferably, the size of the plug-in structure 21 should correspond to the size of the end of the support column, which helps to 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 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 are fixed in position, and no small distance sliding and flipping front and back or left and right will occur. The stability of the bracket is greatly improved. There will be no lateral shaking, or the rear base and the front base will overlap when moving forward. It should be noted that the meaning of the size of the plug-in structure 21 corresponding to the size of the end of the support column is that the end of the support column and the plug-in structure 21 form a clearance fit or interference fit.

[0038] In contrast, if Figure 4As shown, as a preferred embodiment, in the technical solution of Example 1, the double support column base includes at least one support column fixing pin 30, and at least one pair of sockets 211 matching with the support column fixing pin 30 are formed on the plug-in structure 21, and the support column fixing pin 30 passes through the end of the support column and matches with the socket 211 to fix the support column. By forming the socket 211 matching with the support column fixing pin 30 on the plug-in structure 21, and fixing the fixing pin 30 through the end of the support column and the socket 211, the connection stability between the support column and the base is further enhanced. The addition of the support column fixing pin 30 effectively prevents the problem of the support column being out of position due to shaking or sliding in the plug-in structure, and ensures the reliability of the support column in operation. At the same time, the precise matching of the socket 211 and the support column fixing pin 30 makes the support column easy to install, flexible to disassemble, and convenient for maintenance and replacement. Since the support column connection part 20 is raised to form the plug-in structure 21, in some special cases, the support column in the plug-in structure 21 can be lifted up to a certain height, and then at least one support column fixing pin 30 is inserted into the support column horizontally, so that the position of the support column is raised in the air, and the height of the bracket is also increased. The significance of doing so is that, because the row bracket sometimes encounters the top surrounding rock of the working surface unexpectedly becoming higher, or the bottom surrounding rock becoming lower, causing the bracket to not connect to the top and cannot be used normally, a higher support column is replaced, or square wood is inserted above the top beam of the bracket to fill the empty top, or wooden piers are placed under the base to solve the problem. These methods are very troublesome, time-consuming and labor-intensive, and sometimes even very dangerous, because these emergency methods cause instability to the bracket. Through the coordination of the support column fixing pin 30 and the socket 211 structure, the height of the bracket can be changed in the fastest time. This can solve this troublesome problem very well.

[0039] Optionally, the plug-in structure 21 formed by the elevation can be formed by welding four raised side panels on the bottom plate of the original base, and a groove surrounded by the four side panels forms the plug-in structure 21, and the plug-in structure 21 is square. If a thick-walled steel pipe is used and welded to the bottom plate of the base, a plug-in structure 21 with a circular groove will be formed. In normal use, the support column can be directly placed in it, and the support column fixing pin 30 can be inserted to fix it and use it, and the original base's twisting phenomenon of front and back, left and right will disappear.

[0040] More preferably, Figure 4As shown, there are two support column fixing pins 30 and two pairs of sockets 211, and the projections of the two pairs of sockets 211 on the horizontal plane are cross-distributed and staggered in the height direction. By providing two support column fixing pins 30 and two pairs of sockets 211, and making the sockets 211 cross-distributed on the horizontal plane and staggered in the height direction, the fixing method of the support column and the base is further optimized. This design significantly improves the stability of the support column in multiple directions, especially under lateral and longitudinal force conditions, it can better disperse stress and prevent the support column from rotating or tilting. The cross-distributed support column fixing pins 30 enhance the torsion resistance of the connection point, and the staggered setting in the height direction avoids the stress concentration problem of the fixing pins on the same plane, thereby reducing the risk of deformation or breakage of the fixing pins due to long-term use.

[0041] like Figure 5 As shown, as a preferred embodiment, in the technical solution of Example 1, the double support column base also includes a cushion block 40, and the cushion block 40 is arranged at the bottom of the plug-in structure 21. The cushion block 40 is arranged at the bottom of the plug-in structure 21, which effectively improves the pressure-bearing capacity and stability of the support column and the base. The addition of the cushion block 40 shares the pressure generated by the support column, avoiding the pressure from being completely transferred to the side plate of the plug-in structure, thereby reducing the risk of deformation or damage of the plug-in structure related to the side plate and the support column fixing pin 30 due to long-term pressure. At the same time, the cushion block 40 provides a more stable support surface for the support column, further reducing the shaking or displacement of the support column in the plug-in structure.

[0042] The above method uses the support column fixing pin 30 to bear the supporting force, and the support column fixing pin 30 is easy to bend after long-term use. Therefore, as a more preferred embodiment, a pre-made cushion block 40 can be placed at the bottom of the plug-in structure 21, so that the support column is placed in the plug-in structure 21 and pressed on the cushion block 40, and the cushion block 40 bears the working pressure of the support column. Optionally, the cushion block 40 can be a square cushion block 40.

[0043] More preferably, in the above-mentioned embodiment, the support column fixing pin 30 may also be used while using the cushion block 40, so that the support column fixing pin 30 only bears the weight when the support column base itself is lifted.

[0044] The above several implementation methods can temporarily or temporarily raise the height of the row bracket, which is very useful for the bracket to cope with the special small stage of the top plate becoming higher. It avoids the workers having to step up to the top of the bracket to pad wood or pad wooden piers under the base. Due to the addition of pads, the bracket can be in a normal full-load working state. When the tunnel becomes lower, the pads can be removed, so that the bracket has the function of adjusting the height to support the top plate in special circumstances.

[0045] In the technical solution of the first embodiment, the support column connection part 20 is raised relative to the guide column connection part 10 to form a plug-in structure 21. It should be noted that "the support column connection part 20 is raised relative to the guide column connection part 10" includes two implementable structures. The first implementable structure is that the guide column connection part 10 maintains the same height as in the prior art, and only the support column connection part 20 is raised; the second implementable structure is that the guide column connection part 10 is also raised compared to the same height in the prior art, but the height of the support column connection part 20 is higher than that of the guide column connection part 10. In the second implementable structure, the higher guide column connection part 10 can also have a better fixing effect on the guide column.

[0046] As a double support column base that can also be implemented, such as Figure 6 As shown, the present invention also provides a second embodiment of a double support column base. In the technical solution of the second embodiment, the support column connection part 20 and the guide column connection part 10 are raised to the same height to form a plug-in structure 21 in the support column connection part 20. Raising the support column connection part 20 and the guide column connection part 10 together and forming the plug-in structure 21 in the support column connection part 20 significantly enhances the bonding strength and stability between the support column and the base.

[0047] like Figure 7 As shown, the present invention also provides a third embodiment of a single support column base suitable for a row of brackets that can be raised, including a base body, on which a support column connecting portion 20 connected to the support column is formed, and the support column connecting portion 20 is raised to form a plug-in structure 21, and the plug-in structure 21 is used to insert the end of the support column. Similarly, by raising the support column connecting portion 20 to form the plug-in structure 21, the stability of the connection between the support column and the base is significantly improved. The plug-in structure 21 provides a deeper plug-in depth, so that the end of the support column can be deeply inserted, thereby reducing the gap between the support column and the base, avoiding lateral sliding and front and back shaking, and ensuring that when the bracket is running on an uneven surrounding rock bottom plate, each support component can stably maintain a vertical position. This design effectively avoids the problem of bracket instability caused by sliding or flipping, while greatly reducing the stress concentration phenomenon of the fixed pin shaft, thereby extending its service life.

[0048] In the technical solution of the third embodiment, the structural principles related to the plug-in structure 21, the support column fixing pin 30 and the cushion block 40 are the same as those of the first embodiment and will not be repeated here.

[0049] like Figure 8As shown, the present invention also provides a fourth embodiment of a single support column base suitable for a height-increasing row bracket. The difference between the fourth embodiment and the third embodiment is that a support column connection part 20 is formed in the middle of the base body, and guide column connection parts 10 connected to two guide columns are formed on both sides of the base body, and the support column connection part 20 is raised relative to the guide column connection part 10 to form a plug-in structure 21. Similarly, it should be noted that "the support column connection part 20 is raised relative to the guide column connection part 10" includes two implementable structures. The first implementable structure is that the guide column connection part 10 maintains the same height as in the prior art, and only the support column connection part 20 is raised; the second implementable structure is that the guide column connection part 10 is also raised compared to the same height in the prior art, but the height of the support column connection part 20 is higher than that of the guide column connection part 10. In the second implementable structure, the higher guide column connection part 10 can also have a better fixing effect on the guide column.

[0050] As another embodiment not shown in the figure, the support column connection part 20 and the guide column connection part 10 may be raised to the same height to form the plug-in structure 21 in the support column connection part 20 .

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 double support column base suitable for a height-increasing row bracket, comprising a base body, a guide column connecting portion (10) connected to a guide column is formed in the middle of the base body, and support column connecting portions (20) connected to two support columns are formed on both sides of the base body, 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 insert the end of the support column.

2. The double support column base for the height-increasable row bracket according to claim 1, characterized in that: The double support column base includes at least one support column fixing pin shaft (30), and the plug-in structure (21) is formed with at least one pair of insertion holes (211) that cooperate with the support column fixing pin shaft (30). The support column fixing pin shaft (30) passes through the end of the support column and cooperates with the insertion hole (211) to fix the support column.

3. The double support column base for the height-increasable row bracket according to claim 2, characterized in that: There are two support column fixing pin shafts (30), and there are two pairs of insertion holes (211). The projections of the two pairs of insertion holes (211) on the horizontal plane are distributed in a cross shape and are staggered in the height direction.

4. The double support column base for the height-increasable row bracket according to claim 1, characterized in that: The double support column base also includes a cushion block (40), and the cushion block (40) is arranged at the bottom of the plug-in structure (21).

5. The double support column base for the height-increasable row bracket according to claim 1, characterized in that: The support column connection part (20) is raised relative to the guide column connection part (10) to form the plug-in structure (21), or the support column connection part (20) and the guide column connection part (10) are raised together to the same height to form the plug-in structure (21) in the support column connection part (20).

6. A single support column base suitable for a height-increasing row bracket, comprising a base body, a support column connecting portion (20) connected to the support column is formed on the base body, and 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 insert the end of the support column.

7. The single support column base for the height-increasable row bracket according to claim 6, characterized in that: The single support column base includes at least one support column fixing pin shaft (30), and the plug-in structure (21) is formed with at least one pair of insertion holes (211) that match the support column fixing pin shaft (30). The support column fixing pin shaft (30) passes through the end of the support column and matches with the insertion hole (211) to fix the support column.

8. The single support column base for the height-increasable row bracket according to claim 7, characterized in that: There are two support column fixing pin shafts (30), and there are two pairs of insertion holes (211). The projections of the two pairs of insertion holes (211) on the horizontal plane are distributed in a cross shape and are staggered in the height direction.

9. The single support column base for the height-increasable row bracket according to claim 6, characterized in that: The single support column base also includes a cushion block (40), and the cushion block (40) is arranged at the bottom of the plug-in structure (21).

10. The single support column base for the height-increasable row bracket according to claim 6, characterized in that: The support column connection part (20) is formed in the middle of the seat body, and guide column connection parts (10) connected to two guide columns are respectively formed on both sides of the seat body. The support column connection part (20) is raised relative to the guide column connection part (10) to form the plug-in structure (21), or the support column connection part (20) and the guide column connection part (10) are raised together to the same height to form the plug-in structure (21) in the support column connection part (20).

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