A large-span adjustable support base

Abstract

The present invention discloses a large-span adjustable support base, comprising: a bottom plate which can be spanned over a large-span wellhead to cover the wellhead. The bottom plate is linear and composed of a plurality of standard blocks, and the number of the standard blocks is adjusted to adapt to wellheads of different sizes; and support legs which are arranged below the bottom plate to support the bottom plate. The adjustable support base of the present invention is mainly applied to the bottom of a steel column established at a large-span wellhead to support the steel column. During use, the bottom plate is directly erected on the large-span wellhead, so that the placement of the entire steel column on the large-span wellhead can be realized, and the number of the standard blocks is adjusted to adapt to wellheads of different sizes. Moreover, insertion rods with sharp fronts are arranged in the present invention. After a plurality of insertion rods are inserted into the soil layer, the stability of the entire bottom plate can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of large-span adjustable support bases. More specifically, the present invention relates to a large-span adjustable support base applied to steel columns. Background Art

[0002] As one of the common structures in the construction field, steel columns are widely used in large factories, stadiums and other fields. Steel columns are mainly composed of beam steels, steel columns, steel trusses and other components made of sections and steel plates. However, the existing steel columns are all conventional columnar structures and cannot be directly applied when they need to be erected at large-span wellheads. Therefore, a base specifically adapted to the steel column is required. However, the current bases all use conventional steel plates and cannot be adjusted adaptively according to the wellhead size. When it is not applicable, steel plates of different sizes need to be re-welded, which is cumbersome to operate. Summary of the Invention

[0003] In order to achieve these and other advantages in accordance with the present invention, there is provided a large-span adjustable support base, comprising:

[0004] A bottom plate which can be spanned on a large-span wellhead to cover the wellhead. The bottom plate is linear and is composed of a plurality of standard blocks. The number of the standard blocks is adjusted to adapt to wellheads of different sizes;

[0005] Legs which are arranged below the bottom plate to support the bottom plate.

[0006] According to a preferred embodiment of the present invention, the bottom plate is composed of at least three standard blocks, and two of the legs are respectively arranged below the outer sides of the two standard blocks at both ends.

[0007] According to a preferred embodiment of the present invention, one end of each adjacent two standard blocks that are close to each other is respectively recessed and protruded to form a limiting groove and a protruding clamping block. The protruding clamping block is inserted into the limiting groove, and bolt holes are respectively provided at the positions where they are in contact with each other. A bolt structure is inserted into the bolt holes to realize the connection of the adjacent two standard blocks.

[0008] According to a preferred embodiment of the present invention, a buffer pad is arranged at the bottom end of the leg, and its cross-sectional area is larger than that of the leg.

[0009] According to a preferred embodiment of the present invention, a plurality of insertion rods are further connected to the bottom of the bottom plate. One insertion rod is correspondingly arranged for each standard block, and the lower end of the insertion rod is sharp.

[0010] According to a preferred embodiment of the present invention, the insertion rod comprises an outer sleeve and an inner sleeve, the inner sleeve is sleeved in the outer sleeve, and a plurality of rows of openings are arranged at intervals along the height direction thereof on the side wall of the outer sleeve, and each row of openings comprises a plurality of openings distributed circumferentially along the outer sleeve;

[0011] The inner sleeve is sleeved in the outer sleeve, and the side wall of the inner sleeve is also connected to an internal hollow grouting rod. The number of the grouting rods is consistent with the number of the openings, and they correspond one to one. The length of the grouting rod is variable, and it can be extended to the outside of the corresponding opening. The inner sleeve contains grouting material, and a grouting hole is provided at one end of the grouting rod extending out of the opening to inject the grouting material in the grouting rod into the external soil layer.

[0012] According to a preferred embodiment of the present invention, the grouting rod includes a folding tube and a support rod. The folding tube is foldable and has an adjustable length. A steel ring is provided at the front end of the folding tube. One end of the folding tube is connected to the inner sleeve, and the other end faces the corresponding opening. The support rod is a hydraulic rod, a fixed end of which is provided on the side wall of the inner sleeve, and a telescopic end is connected to the steel ring. As the telescopic end of the hydraulic rod is extended or retracted, the folding tube is driven to extend or retract.

[0013] According to a preferred embodiment of the present invention, the opening and the grouting holes are both circular and covered by a cover plate made of flexible material. The cover plate is circular and is divided into a plurality of triangular-like blocks by a plurality of diameters passing through the center of the circle. One side of the triangular-like blocks is arc-shaped and the other two sides are straight lines. The arc-shaped sides of all the triangular-like blocks together constitute the outer circle of the cover plate, and the angle formed by the two straight lines of two adjacent triangular-like blocks is seamlessly spliced.

[0014] After the grouting rods of two adjacent insertion rods extend from the openings on the surface of the outer sleeve, the distance between the two is within a preset value.

[0015] According to a preferred embodiment of the present invention, the interior of the base plate is hollow, the inner sleeves of all inserted rods are connected to the bottom of the base plate, and the internal space of the inner sleeves is communicated with the internal space of the base plate.

[0016] According to a preferred embodiment of the present invention, the steel ring is cylindrical and is sleeved on the front end of the folding cylinder. A plurality of through holes are correspondingly provided at the contacting portion of the two. The through holes are arranged in an annular shape on the steel ring for the grouting liquid to be output from the through holes.

[0017] The present invention has at least the following beneficial effects: The adjustable support base of the present invention is mainly applied to the bottom of the steel column installed at the large-span wellhead to support the steel column. During use, the bottom plate is directly erected on the large-span wellhead, and the placement of the entire steel column on the large-span wellhead can be realized. By adjusting the number of the standard blocks, wellheads of different sizes can be adapted. Moreover, in the present invention, insertion rods with sharp front ends are provided. After multiple insertion rods are inserted into the soil layer, the stability of the entire bottom plate can be greatly improved. In addition, by arranging telescopic grouting rods in the insertion rods to grout the soil layer, the stability of the entire base is further improved.

[0018] Other advantages, objectives, and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a large-span adjustable support base in an embodiment of the present invention.

[0020] Figure 2 For Figure 1 the enlarged schematic diagram at A of

[0021] Figure 3 It is a schematic connection diagram of the standard blocks in the bottom plate in another embodiment of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the cover plate in another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following further describes the present invention in detail with reference to the drawings so that those skilled in the art can implement it according to the description in the specification.

[0024] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be applied to other embodiments, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not deviate from the spirit and scope of the present invention.

[0025] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0026] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as limiting the quantity.

[0027] As Figures 1-4 shown, a preferred embodiment of the present invention provides a large-span adjustable support base, including:

[0028] A bottom plate 100, which can be straddled on a large-span wellhead to cover the wellhead. The bottom plate 100 is linear and is composed of a plurality of standard blocks 110 spliced together. The number of the standard blocks 110 is adjusted to adapt to wellheads of different sizes;

[0029] Legs 200, which are arranged below the bottom plate 100 to support the bottom plate 100.

[0030] In the above embodiment, the main application scenario of this base is at the bottom of a steel column set at a large-span wellhead to support the steel column. During use, the bottom plate 100 is directly erected on the large-span wellhead, and the placement of the entire steel column on the large-span wellhead can be realized. The number of the standard blocks 110 is adjusted to adapt to wellheads of different sizes.

[0031] According to a preferred embodiment of the present invention, the bottom plate 100 is composed of at least three standard blocks 110 spliced together, and two of the legs 200 are respectively arranged below the outer sides of the two standard blocks 110 at both ends.

[0032] One end of adjacent two standard blocks 110 that are close to each other is respectively recessed and protruded to form a limit groove 111 and a protruding clamping block 112. The protruding clamping block 112 is inserted into the limit groove 111, and bolt holes are respectively provided at the positions where they are in contact. A bolt structure 113 is inserted into the bolt holes to realize the connection of adjacent two standard blocks 110.

[0033] In the above implementation scheme, when it is necessary to adjust the number of standard blocks 110, the bolt structure connecting the two standard blocks 110 is first removed, and then the newly added standard block 110 is inserted between the two adjacent standard blocks. During the insertion process, the protruding block 112 of one of the standard blocks is inserted into the limiting groove 111 of the other standard block, and then the bolt structure 113 is inserted into the corresponding bolt hole to achieve the connection between the two standard blocks. The operation is simple and the connection is firm.

[0034] According to a preferred embodiment of the present invention, a buffer pad 210 is disposed at the bottom end of the supporting leg 200 , and the cross-sectional area of ​​the buffer pad 210 is larger than the cross-sectional area of ​​the supporting leg 200 .

[0035] Especially when the soil layer is relatively soft, the conventional legs are relatively thin, the contact area between the legs and the soil layer is small, the pressure is large, and long-term contact is more likely to cause collapse, so a buffer pad is provided at the bottom of the legs 200.

[0036] According to a preferred embodiment of the present invention, a plurality of insertion rods 300 are connected to the bottom of the base plate 100 , and each of the standard blocks 110 is correspondingly provided with an insertion rod 300 , and the lower end of the insertion rod 300 is sharp.

[0037] In the above embodiment, the front end of the insertion rod 300 is sharp, which is convenient for insertion into the soil layer. After multiple insertion rods are inserted into the soil layer, the stability of the entire base plate 100 can be greatly improved.

[0038] According to a preferred embodiment of the present invention, the insertion rod 300 includes an outer sleeve 310 and an inner sleeve 320, wherein the inner sleeve 320 is sleeved in the outer sleeve 310, and a plurality of rows of openings 330 are provided on the side wall of the outer sleeve 310 at intervals along the height direction thereof, and each row of openings 330 includes a plurality of openings 330 distributed circumferentially along the outer sleeve 310;

[0039] The inner sleeve 320 is sleeved in the outer sleeve 310, and the side wall of the inner sleeve 320 is also connected to an internal hollow grouting rod 340. The number of the grouting rods 340 and the openings 330 are the same and correspond one to one. The length of the grouting rods 340 is variable and can be extended to the outside of the corresponding openings 330. The inner sleeve 320 contains grouting material, and the end of the grouting rod 340 extending out of the opening 330 is provided with a grouting hole to inject the grouting material in the grouting rod 340 into the external soil layer.

[0040] Taking into account that the soil in many areas is soft during actual construction, even if an insertion rod is provided, the conventional base cannot avoid the problem that the heavy and large steel columns are prone to collapse or tipping over. In order to avoid this technical problem, the above embodiment provides an insertion rod structure, wherein the outer sleeve 310 is rigid and its front end is sharp to facilitate insertion into the coating. After the outer sleeve 310 is inserted into the soil layer, the grouting rod 340 is controlled to extend until the grouting rod 340 passes through the opening 330 on the outer sleeve. When the grouting rod 340 is extended to the maximum value, the grouting material can be poured from the inner sleeve 320 to the grouting rod 340, and then immersed in the soil layer through the grouting hole of the grouting rod. After the grouting material hardens, the hardness of the soil layer can be greatly improved, thereby improving the stability and safety of the entire base.

[0041] According to a preferred embodiment of the present invention, the grouting rod 340 includes a folding tube 341 and a support rod 342. The folding tube 341 is foldable and has an adjustable length. A steel ring 343 is provided at the front end of the folding tube 341. One end of the folding tube 341 is connected to the inner sleeve 320, and the other end faces the corresponding opening 330. The support rod 342 is a hydraulic rod, a fixed end of which is provided on the side wall of the inner sleeve 320, and a telescopic end is connected to the steel ring 343. As the telescopic end of the hydraulic rod is extended or retracted, the folding tube 341 is driven to extend or retract.

[0042] In the above embodiment, the folding cylinder 341 is made of a flexible material and can be easily folded and stored. As the support rod 342 is extended and retracted, the folding cylinder 341 is driven to extend and retract (fold or unfold), and can be extended out of the opening 330 on the outer sleeve and retracted into the opening 330 on the outer sleeve. The steel ring 343 is for the convenience of connecting the support rod to the folding cylinder, otherwise the folding cylinder is made of a flexible material and is not easy to operate.

[0043] According to a preferred embodiment of the present invention, the opening 330 and the grouting hole are both circular and covered by a cover plate 350 made of flexible material. The cover plate 350 is circular and is divided into a plurality of triangular-like blocks by a plurality of diameters passing through the center of the circle. One side of the triangular-like blocks is arc-shaped and the other two sides are straight lines. The arc-shaped sides of all the triangular-like blocks together constitute the outer circle of the cover plate 350, and the angle formed by the two straight lines of two adjacent triangular-like blocks is seamlessly spliced.

[0044] After the grouting rods 340 of two adjacent insertion rods 300 extend from the openings 330 on the surface of the outer sleeve 310 , the distance between the two is within a preset value.

[0045] Considering that the outer sleeve 310 is in contact with the soil layer for a long time and is prone to blockage, and also to avoid blockage of the grouting holes, the above method is provided in the above implementation scheme. By setting a flexible cover plate, which is divided into multiple pieces, when grouting is not required, the cover plate can play an isolation role to prevent soil from blocking the holes. When grouting is required, the grouting rod 340 can extend from the opening to perform the grouting operation, which will not affect the progress of the grouting operation.

[0046] According to a preferred implementation scheme of the present invention, the bottom plate 100 is hollow inside, and the inner sleeves 320 of all the insertion rods 300 are connected to the bottom of the bottom plate 100, and the internal space of the inner sleeve 320 communicates with the internal space of the bottom plate 100.

[0047] In this way, the internal hollow structure of the bottom plate can be used to provide grouting materials for all the insertion rods at the same time, which is more convenient and faster. The grouting material is a pre-prepared liquid, and during the grouting process, the grouting pump provides power for the entire grouting process.

[0048] According to a preferred implementation scheme of the present invention, the steel ring 343 is cylindrical, and its front end is sharp. The steel ring 343 is sleeved on the front end of the folding cylinder 341, and a plurality of through holes are correspondingly opened at the contact part between the two. The through holes are annularly arranged on the steel ring 343 for the grouting liquid to output from the through holes. In this way, the grouting efficiency is higher.

[0049] Although the implementation schemes of the present invention have been disclosed as above, they are not limited to the applications listed in the description and implementation modes. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. A large-span adjustable support base, characterized in that, include: A bottom plate, which can be arranged across a wellhead with a large span to cover the wellhead, the bottom plate is in a straight line and is formed by splicing a plurality of standard blocks, and the number of the standard blocks can be adjusted to adapt to wellheads of different sizes; A leg, which is arranged below the bottom plate to support the bottom plate; The bottom of the base plate is also connected to a plurality of insertion rods, each of the standard blocks is correspondingly provided with an insertion rod, and the lower end of the insertion rod is sharp; the insertion rod comprises an outer sleeve and an inner sleeve, the inner sleeve is sleeved in the outer sleeve, and the side wall of the outer sleeve is provided with a plurality of rows of openings arranged at intervals along its height direction, and each row of openings comprises a plurality of openings distributed circumferentially along the outer sleeve; the inner sleeve is sleeved in the inner sleeve, and the side wall of the inner sleeve is also connected to an internal hollow grouting rod, the number of the grouting rods and the openings is the same and corresponds one to one, the length of the grouting rod is variable, and it can be extended to the outside of the corresponding opening, the inner sleeve contains grouting material, and the end of the grouting rod extending out of the opening is provided with a grouting hole, so as to inject the grouting material in the grouting rod into the external soil layer; The bottom plate is hollow inside, and the inner sleeves of all the inserted rods are connected to the bottom of the bottom plate, and the inner space of the inner sleeve is communicated with the inner space of the bottom plate.

2. The large-span adjustable support base according to claim 1, characterized in that: The bottom plate is formed by splicing at least three standard blocks, and two legs are respectively arranged below the outer sides of the two standard blocks at the two ends.

3. The large-span adjustable support base according to claim 1, characterized in that: The ends of two adjacent standard blocks that are close to each other are respectively sunken and protruded to form a limit groove and a protruding block. The protruding block is inserted into the limit groove, and bolt holes are correspondingly provided at the contact positions of the two blocks. The bolt structure is inserted into the bolt hole to realize the connection between the two adjacent standard blocks.

4. The large-span adjustable support base according to claim 1, characterized in that: A buffer pad is arranged at the bottom end of the supporting leg, and the cross-sectional area of ​​the buffer pad is larger than the cross-sectional area of ​​the supporting leg.

5. The large-span adjustable support base according to claim 1, characterized in that: The grouting rod includes a folding tube and a support rod. The folding tube is foldable and has an adjustable length. A steel ring is provided at the front end of the folding tube. One end of the folding tube is connected to the inner sleeve, and the other end faces the corresponding opening. The support rod is a hydraulic rod, a fixed end of which is provided on the side wall of the inner sleeve, and a telescopic end is connected to the steel ring. As the telescopic end of the hydraulic rod is extended or retracted, the folding tube is driven to extend or retract.

6. The large-span adjustable support base according to claim 1, characterized in that: The opening and the grouting hole are both circular and covered by a cover plate made of a flexible material. The cover plate is circular and is divided into a plurality of triangular blocks by a plurality of diameters passing through the center of the circle. One side of the triangular block is an arc and the other two sides are straight lines. All the arc sides of the triangular blocks together form an outer circle of the cover plate. The angle formed by the two straight lines of two adjacent triangular blocks is seamlessly spliced. After the grouting rods of two adjacent insertion rods extend out from the openings on the surface of the outer sleeve, the distance between the two is within a preset value.

7. The large-span adjustable support base according to claim 5, characterized in that, The steel ring is cylindrical and is sleeved on the front end of the folding cylinder. A plurality of through holes are correspondingly formed at the contact part between the two. The through holes are annularly arranged on the steel ring for the grouting liquid to output from the through holes.

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