Large equipment foundation embedded bolt positioning mechanism

Abstract

The utility model discloses an embedded bolt positioning mechanism for a large-scale equipment foundation, which relates to the technical field of equipment foundations and specifically structurally comprises a plurality of embedded screws distributed at intervals in the circumferential direction; the at least two positioning sheets are mounted on the pre-embedded screw rod; the sleeves are installed on the embedded screws in a one-to-one correspondence mode, and the sleeves are arranged between the positioning pieces; the truss assembly is arranged between the positioning pieces, and the upper side and the lower side of the truss assembly are connected with the positioning pieces respectively; and the positioning nuts are mounted on the pre-embedded screw rod at intervals, and the positioning nuts are located on the upper side and the lower side of the positioning piece correspondingly. The technical problems that an existing equipment foundation is high in construction cost and long in construction time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment foundations, in particular to a pre-embedded bolt positioning mechanism for a large-scale equipment foundation. Background Art

[0002] Heavy chemical plants often require the installation of pressure vessels and other heavy production equipment. To ensure the long-term safe and stable operation of these equipment, extremely high installation precision is required, placing even higher demands on project construction and installation. High-precision control of embedded bolts for large equipment is one of the most critical steps in the entire installation process.

[0003] For the traditional method of pre-embedded bolts, manual measurement is generally used to locate the bolts, and the steel bars are welded to anchor the bolts. The pre-embedded bolts in groups also require multiple inspections and corrections, which consumes a lot of manpower and related fixing materials. During the stages of tying steel bars and pouring foundations, there is a great risk of displacement of the pre-embedded bolts. Late adjustments will increase construction costs on the one hand and affect the construction period of the project on the other. Utility Model Content

[0004] The purpose of the utility model is to provide a large-scale equipment foundation embedded bolt positioning mechanism, which solves the technical problems of high equipment foundation construction cost and long construction time in the prior art.

[0005] The present application discloses a large equipment foundation embedded bolt positioning mechanism, comprising:

[0006] A plurality of pre-embedded screws, wherein the pre-embedded screws are distributed at intervals in the circumferential direction;

[0007] At least two positioning pieces are installed on the embedded screw rod;

[0008] A plurality of sleeves are installed on the embedded screw rods in a one-to-one correspondence, and the sleeves are arranged between the positioning pieces;

[0009] a truss assembly disposed between the positioning pieces, with the upper and lower sides of the truss assembly respectively connected to the positioning pieces;

[0010] A plurality of positioning nuts are installed on the embedded screw at intervals, and the positioning nuts are respectively located on the upper and lower sides of the positioning piece.

[0011] The present application is designed with a truss assembly to increase the overall strength of the positioning mechanism; a positioning nut is also provided for adjusting the position of the positioning piece.

[0012] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0013] Furthermore, a screw support is provided at the bottom of the embedded screw. The beneficial effect of adopting this step is that the stability of the embedded screw assembly can be ensured.

[0014] Furthermore, the truss assembly includes:

[0015] Two upper chord frames, both ends of which are connected to the positioning pieces respectively, and the upper chord frames are spliced ​​to form a circle;

[0016] The two lower chord frames are connected to the positioning pieces at both ends respectively, and the two lower chord frames are spliced ​​to form a circle. The lower chord frames are perpendicular to the upper chord frames. The beneficial effect of this step is that the strength of the overall mechanism can be improved by cooperating with the upper and lower chord frames.

[0017] Furthermore, an upper cross web is provided inside the upper chord frame. The beneficial effect of adopting this step is that the stability of the upper chord frame can be ensured by the upper cross web.

[0018] Furthermore, two lower cross webs are spaced apart inside the lower chord frame. The beneficial effect of this step is that the stability of the lower chord frame can be improved.

[0019] Furthermore, the upper chord frame and the lower chord frame are both semicircular. The beneficial effect of adopting this step is that the semicircular structure can facilitate assembly.

[0020] Furthermore, the cross section of the positioning piece is circular.

[0021] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0022] 1. The embedded screws in this application are connected into a circular whole through a mold, and the overall position is fixed; the use of double positioning plates can not only ensure that the spacing between the bolts in the upper plane is relatively accurate, but also avoid the deviation of the lower part of the rod and the deviation of the overall installation position under the disturbance of construction load, thereby improving the installation accuracy.

[0023] 2. This application adds a web to form a cylindrical space truss structure, which enhances the stability and rigidity of the entire embedded node and avoids the twisting and deformation of the device under the action of construction load, affecting the bolt positioning accuracy.

[0024] 3. This application is easy to position and install. You only need to insert the screw into the sleeve and then install it according to the pre-positioned installation point. The efficiency of the overall equipment installation is greatly improved.

[0025] 4. This application provides a positioning nut to accurately control the height of the base and ensure the flatness of the base surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of a large equipment foundation embedded bolt positioning mechanism according to a specific embodiment of the utility model;

[0028] Figure 2 for Figure 1 Top view after removing the embedded screws;

[0029] Figure 3 for Figure 1 A schematic diagram of the structure of the upper string frame part;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the lower chord frame part;

[0031] 1-embedded screw; 2-positioning piece; 3-sleeve; 4-truss assembly; 5-positioning nut; 6-screw support;

[0032] 401-upper chord frame; 402-lower chord frame; 403-upper cross web member; 404-lower cross web member. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0034] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0035] In this application, unless otherwise specified or limited, the terms "installed," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] Example:

[0038] like Figure 1-4 As shown, the present application discloses a positioning mechanism, which is a ring-shaped whole that can ensure the stability of subsequent assembly. At the same time, the present application is provided with two positioning plates spaced upper and lower to further ensure stability. At the same time, a truss assembly is also provided to increase the overall strength.

[0039] The specific structure of this application includes:

[0040] A plurality of pre-embedded screws 1 are circumferentially spaced apart and serve as positioning members and are evenly spaced apart.

[0041] At least two positioning pieces 2 are installed on the embedded screw 1. The positioning pieces 2 are annular and spaced apart from each other to facilitate subsequent load-bearing installation.

[0042] A plurality of sleeves 3 are installed on the embedded screw 1 in a one-to-one correspondence, and the sleeves 3 are arranged between the positioning pieces 2. The sleeves 3 are used to fix the positioning pieces to prevent the upper and lower positioning pieces from being displaced relative to each other, and can also be adjusted, that is, the position can be adjusted up and down along the embedded screw 1;

[0043] A truss assembly 4 is provided between the positioning pieces 2, and the upper and lower sides of the truss assembly 4 are respectively connected to the positioning pieces 2. The truss assembly 4 is used to support the positioning pieces 2 to ensure the stability of the positioning pieces;

[0044] Multiple positioning nuts 5 are installed at intervals on the embedded screw 1, and the positioning nuts 5 are respectively located on the upper and lower sides of the positioning piece 2; specifically, two positioning nuts 5 are installed on one embedded screw 1, wherein the positioning nut 5 located on the upper side of the positioning piece 2 is used to limit the upward movement distance of the positioning piece 2, and the positioning nut 5 located on the lower side of the positioning piece 2 is used to support the positioning piece 2 to ensure the stability of the positioning piece 2, and also facilitate the adjustment of the position of the positioning piece 2.

[0045] In order to ensure the stable assembly of the embedded screw rod 1, a screw rod support 6 is provided at the bottom of the embedded screw rod 1 in the present application, so as to ensure the stability of the embedded screw rod 1 during assembly.

[0046] With respect to the truss assembly 4, the present application makes the following design, wherein the truss assembly 4 includes:

[0047] Two upper chord frames 401, both ends of which are connected to the positioning piece 2, and the upper chord frames 401 are spliced ​​to form a circle;

[0048] The two lower chord frames 402 are connected to the positioning piece 2 at both ends, and the two lower chord frames 402 are spliced ​​to form a circle. The lower chord frames 402 are perpendicular to the upper chord frame 401. The staggered upper and lower chord frames can support the positioning piece 2 to ensure the stability of the positioning piece when bearing.

[0049] In order to further ensure the stability of the upper chord frame 401, an upper cross web 403 is provided inside the upper chord frame 401. By crossing each other, a stable support can be formed to further ensure the stability of the entire structure.

[0050] Similarly, two lower cross webs 404 are arranged at intervals inside the lower chord frame 402 of the present application. The lower cross webs 404 are used to support the lower chord frame 402. The number of the lower cross webs 404 is greater than that of the upper cross webs because the lower chord frame 402 is located below the upper chord frame 401 and also needs to further support the upper chord frame 401.

[0051] Specifically, the upper chord frame 401 and the lower chord frame 402 are both rectangular, and the cross section of the positioning piece 2 is circular, which can ensure the stability of the entire structure.

[0052] Further explanation for this application:

[0053] The embedded screws in this application are connected into a circular unit through a mold, which secures their overall position. The screws are then connected and secured together with the sleeve, two positioning plates, and a truss assembly to form a cylindrical spatial truss structure, enhancing the stability and rigidity of the entire embedded node. This prevents distortion under construction loads, which could affect bolt positioning accuracy.

[0054] At the same time, the present application is easy to position and install. You only need to insert the screw into the sleeve and then install it according to the pre-positioned installation point, which greatly improves the efficiency of the overall equipment installation. When adjusting the position of the positioning piece later, you only need to adjust the positioning nut.

[0055] Specifically, the processing of this application is as follows:

[0056] S1: Based on the drawing dimensions, a semicircular monolithic piece is punched out of Q235B steel plate in the factory. The plate thickness is 6mm. The lower chord and upper chord of the semicircular truss, as well as the flat webs, are punched out according to the design drawings. At the same time, the webs are cut according to the design requirements of the semicircular space truss, using equal-leg angle steel as the webs. The equal-leg angle steel is 25*4 in size. Steel pipes are cut according to the height of the pedestal, with the inner diameter of the pipe being 2mm larger than the screw.

[0057] S2: Holes are punched into the stamped semicircular plate according to the bolt positions, with the hole diameter 1mm larger than the bolt diameter. Then, according to the design requirements, double-sided fillet welds are welded to the steel pipe and the upper and lower semicircular pieces using E43 welding rods. After welding, the verticality of the steel pipe is checked to ensure subsequent accuracy.

[0058] S3: Weld the lower chord and upper chord of the semicircular truss as above, and then weld the plane web and the space web to form a space truss.

[0059] S4: The two pieces of space truss structure are transported to the site for assembly and welded using double-sided fillet welds after assembly;

[0060] S5: Install the embedded screw rod. Screw the lower nut to the bottom of the screw rod, and then insert the screw rod into the space truss. Install the screw rods in this order and install the upper bolts in sequence.

[0061] S6: After the bolts are installed, hoist the device to the pre-positioned position and use steel wire to fix the device to the foundation steel mesh.

[0062] S7: Adjust the lower nut according to the height of the foundation pedestal. After the lower nut is adjusted to the set position of the pedestal in turn, use a spirit level to calibrate and fine-tune it, and then fix the upper nut and calibrate and fine-tune it here.

[0063] S8: After the installation is completed, wait for the subsequent support of the formwork and pouring of concrete

[0064] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0065] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A large equipment foundation embedded bolt positioning mechanism, characterized in that: include: A plurality of pre-embedded screws, wherein the pre-embedded screws are distributed at intervals in the circumferential direction; At least two positioning pieces are installed on the embedded screw rod; A plurality of sleeves are installed on the embedded screw rods in a one-to-one correspondence, and the sleeves are arranged between the positioning pieces; a truss assembly disposed between the positioning pieces, with the upper and lower sides of the truss assembly respectively connected to the positioning pieces; A plurality of positioning nuts are installed on the embedded screw at intervals, and the positioning nuts are respectively located on the upper and lower sides of the positioning piece.

2. The large equipment foundation embedded bolt positioning mechanism according to claim 1 is characterized in that: A screw support is provided at the bottom of the embedded screw.

3. The large equipment foundation embedded bolt positioning mechanism according to claim 1, characterized in that: The truss assembly comprises: Two upper chord frames, both ends of which are connected to the positioning pieces respectively, and the upper chord frames are spliced ​​to form a circle; Two lower chord frames have two ends respectively connected to the positioning pieces, and the two lower chord frames are spliced ​​to form a circle, and the lower chord frames are perpendicular to the upper chord frames.

4. The large equipment foundation embedded bolt positioning mechanism according to claim 3 is characterized in that: An upper cross web is provided inside the upper chord frame.

5. The large equipment foundation embedded bolt positioning mechanism according to claim 4, characterized in that: Two lower cross webs are spaced apart inside the lower chord frame.

6. The large equipment foundation embedded bolt positioning mechanism according to claim 3, characterized in that: The upper chord frame and the lower chord frame are both semicircular.

7. The large equipment foundation embedded bolt positioning mechanism according to claim 1, characterized in that: The cross section of the positioning piece is circular.

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