Multi-foundation-bolt embedded workpiece
By designing multiple anchor bolt pre-embedded parts, the anchor bolts are fixed vertically using the base plate and ear plate, and adjusted by the movable axis positioning rod. This solves the problem of positional offset during the pre-embedding of anchor bolts in steel structures, improves construction accuracy, and saves costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-08
AI Technical Summary
In existing technologies, positional deviation is common during the pre-embedding process of anchor bolts for steel structures, leading to increased construction costs, extended construction periods, and poor appearance of the finished product.
The pre-embedded workpiece using multiple anchor bolts includes a base plate, ear plates, and a movable axis positioning rod. The anchor bolts are fixed vertically by the upper and lower base plates and ear plates, and the movable axis positioning rod is used for adjustment and positioning to improve the accuracy of pre-embedding.
This method ensures that the anchor bolts are fixed in position during the pre-embedding process, preventing displacement and improving construction accuracy. Furthermore, the workpieces can be disassembled and reused, saving costs.
Smart Images

Figure CN224213813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and more specifically, to a multi-anchor bolt pre-embedded workpiece. Background Technology
[0002] Anchor bolts are special bolts used to fix equipment, structures, etc., to a foundation. They generally consist of a threaded shank, a nut, and a washer. The shank is usually cylindrical, with a threaded end for tightening with the nut; the other end has different shapes and structures to suit different fixing needs, such as hook-shaped or tapered. Anchor bolts transfer the weight and external forces of the equipment or structure to the foundation, utilizing the stability of the foundation to maintain the fixed position of the equipment or structure. During installation, the anchor bolts are first embedded in the foundation, then the mounting holes of the equipment or structure are aligned with the anchor bolts, and the nuts are tightened to secure the equipment or structure to the foundation.
[0003] In existing technologies, the initial installation of anchor bolts for steel structures often results in poor quality, with bolts frequently appearing crooked or misaligned. During steel column installation, adjustments to the anchor bolts or enlarging of holes in the column base plates are required. This increases construction costs, prolongs the construction period, and leads to a poor appearance of the finished product. Utility Model Content
[0004] In view of this, the present invention provides a multi-anchor bolt pre-embedded workpiece, which can improve the accuracy of multi-anchor bolt pre-embedding.
[0005] This utility model provides a multi-anchor bolt pre-embedded workpiece, including: a base plate, an ear plate and a movable axis positioning rod;
[0006] A through hole is provided at the geometric center of the base plate, and several U-shaped grooves are provided at the edges and / or corners of the base plate. A bolt hole is provided on each side of the U-shaped groove.
[0007] A strip-shaped hole is provided between the through hole and the U-shaped groove, and the extending direction of the strip-shaped hole is the same as the extending direction of the edge of the base plate;
[0008] The base plate includes an upper base plate and a lower base plate; the projections of the upper base plate and the lower base plate in the vertical direction coincide.
[0009] Any anchor bolt passes through the U-shaped groove at the same position on the upper base plate and the lower base plate, and is fixed by the ear plate;
[0010] The movable axis positioning rod is installed in the strip hole by a nut.
[0011] In one possible implementation, the ear plate includes a first ear plate that is adapted to a U-shaped groove on the edge of the base plate;
[0012] The first ear plate is rectangular, and the corners of the first ear plate are chamfered;
[0013] A U-shaped groove is formed on one long side of the first ear plate;
[0014] A bolt hole is provided on each side of the U-shaped groove.
[0015] In one possible implementation, the first ear plate is disposed on the top of the base plate, and the U-shaped groove of the first ear plate faces the direction of the through hole in the base plate;
[0016] The anchor bolts pass through the U-shaped grooves on the same edge of the upper base plate and the lower base plate, as well as the U-shaped groove of the first ear plate;
[0017] The bolt holes of the first ear plate are opposite to the bolt holes of the base plate and are fixed by bolts.
[0018] In one possible implementation, the ear plate includes a second ear plate that is adapted to a U-shaped groove at the corner of the base plate;
[0019] The second ear plate is triangular, and the short side of the second ear plate is chamfered;
[0020] The second ear plate has a U-shaped groove on its inclined side;
[0021] A bolt hole is provided on each side of the U-shaped groove.
[0022] In one possible implementation, the second ear plate is disposed on the top of the base plate, and the U-shaped groove of the second ear plate faces the direction of the through hole in the base plate;
[0023] The anchor bolts pass through the U-shaped grooves at the same corner of the upper base plate and the lower base plate, as well as the U-shaped groove of the second ear plate;
[0024] The bolt holes of the second ear plate are opposite to the bolt holes of the base plate and are fixed by bolts.
[0025] In one possible implementation, one end of the movable axis positioning rod is arc-shaped, and the other end is triangular;
[0026] The movable axis positioning rod has a nut hole at its arc end.
[0027] In one possible implementation, the movable axis positioning rod is disposed on the top of the upper base plate;
[0028] The movable axis positioning rod is perpendicular to the strip hole, and its triangular end points in the direction of the through hole in the upper base plate;
[0029] The nut passes through the strip-shaped hole and connects to the nut hole of the movable axis positioning rod.
[0030] In one possible implementation, the anchor bolt is provided with a washer and a nut on top;
[0031] The gasket is disposed on the top of the upper base plate and is fitted onto the top of the anchor bolt;
[0032] The nut is connected to the top of the anchor bolt, fixing the anchor bolt, the washer, and the upper base plate.
[0033] Compared with the prior art, the multi-anchor bolt pre-embedded workpiece provided by this utility model achieves at least the following beneficial effects:
[0034] In the embodiments provided by this utility model, anchor bolts are fixed vertically using two base plates and ear plates. The shape of the base plates, the number of U-shaped grooves, and their positioning can all be determined according to the actual application. Anchor bolts fixed by the workpiece are in a fixed position during pre-embedding, preventing displacement due to external forces. Furthermore, the positioning can be adjusted using a movable axis positioning rod, improving the accuracy of pre-embedding. Simultaneously, the workpiece can be removed and reused, saving costs.
[0035] Of course, any product implementing this utility model does not necessarily need to achieve all the technical effects described above at the same time.
[0036] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description
[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.
[0038] Figure 1 A schematic diagram of a multi-anchor bolt pre-embedded workpiece provided by this utility model;
[0039] Figure 2 A schematic diagram of the structure of the base plate of the workpiece provided by this utility model;
[0040] Figure 3 A schematic diagram of the structure of the first ear plate of the workpiece provided by this utility model;
[0041] Figure 4 A schematic diagram of the structure of the second ear plate of the workpiece provided by this utility model;
[0042] Figure 5A schematic diagram of the movable axis positioning rod of the workpiece provided by this utility model;
[0043] Figure 6 This is a schematic diagram of the structure of the anchor bolt for the workpiece provided by this utility model. Detailed Implementation
[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0045] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0046] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0047] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0048] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.
[0049] This utility model embodiment provides a multi-anchor bolt pre-embedded workpiece 100, referring to... Figure 1 As shown, this utility model embodiment provides a multi-anchor bolt pre-embedded workpiece 100, including: a base plate 10, an ear plate 20, and a movable axis positioning rod 30;
[0050] Specifically, refer to Figure 2 As shown, a through hole 101 is provided at the geometric center of the base plate 10, and several U-shaped grooves 41 are provided at the edges and / or corners of the base plate 10. A bolt hole 42 is provided on each side of the U-shaped groove 41.
[0051] Understandably, the through holes in the base plate 10 are for structures or equipment, such as steel columns, to pass through. Multiple U-shaped grooves 41 are formed at the edges and corners of the base plate 10 for fixing anchor bolts 50. This workpiece is used for the pre-embedding of multiple anchor bolts, meaning that a single installation structure requires multiple bolts for fixing. Therefore, the number of U-shaped grooves at the edges and corners of the base plate 10 is not fixed and can be adjusted according to actual conditions. For example, one U-shaped groove 41 can be formed at each corner of the base plate 10, and one U-shaped groove 41 can be formed at each edge of the base plate 10, for a total of eight anchor bolts 50. In this case, the U-shaped grooves 41 located at the edges of the base plate 10 are positioned at the symmetrical center of the edges of the base plate 10. In another example, one U-shaped groove 41 can be formed at each corner of the base plate 10, and two U-shaped grooves 41 can be formed at each edge of the base plate 10, for a total of twelve anchor bolts 50. In this case, the U-shaped grooves 41 located at the edges of the base plate 10 are evenly spaced along the edges of the base plate 10. Regardless of how many U-shaped grooves 41 are opened on the base plate 10, the goal is to achieve uniform stress distribution and stable fixation of the installation structure.
[0052] Furthermore, a strip-shaped hole 102 is provided between the through hole 101 and the U-shaped groove 41, and the extending direction of the strip-shaped hole 102 is the same as the extending direction of the edge of the base plate 10. A movable axis positioning rod 30 is installed in the strip-shaped hole 102 by a nut 43. The movable axis positioning rod 30 is used to determine the position of the U-shaped groove 41. The number of movable axis positioning rods 30 and the number of U-shaped grooves 41 provided on the edge of the base plate 10 are the same, with each movable axis positioning rod 30 corresponding to one U-shaped groove 41.
[0053] Furthermore, the base plate 10 includes an upper base plate 11 and a lower base plate 12; the projections of the upper base plate 11 and the lower base plate 12 in the vertical direction coincide.
[0054] Any anchor bolt 50 passes through the U-shaped groove 41 at the same position on the upper base plate 11 and the lower base plate 12, and is fixed by the ear plate 20.
[0055] Understandably, a single base plate 10 can only fix the positions of a few bolts 50, but it cannot guarantee that the bolts 50 will not tilt or lean during the pre-embedding process. Therefore, the base plate 10 of this workpiece 100 includes two plates: an upper base plate 11 and a lower base plate 12. The upper base plate 11 and the lower base plate 12 have the same shape and overlap in the vertical direction. Any anchor bolt 50 passes through the U-shaped groove 41 at the same position on the two base plates 10. It is then fixed by the ear plate 20, which can ensure the stability of the anchor bolt 50 in the vertical direction. Furthermore, the number of base plates 10 is not limited to two; it can also be three, four, or more, depending on the length of the anchor bolt 50. The longer the anchor bolt 50 is, the more base plates 10 are required. The top base plate 10 corresponds to the top of the anchor bolt 50, and the other base plates 10 are evenly spaced and arranged downwards in sequence.
[0056] Anchor bolts 50 are fixed to the base plate 10 via ear plates 20. Specifically, ear plates 20 include a first ear plate 21 and a second ear plate 22, which correspond to U-shaped grooves 41 of different shapes.
[0057] Specifically, refer to Figure 3 As shown, the ear plate 20 includes a first ear plate 21, which is adapted to the U-shaped groove 41 on the edge of the base plate 10.
[0058] The first ear plate 21 is rectangular, and the corners of the first ear plate 21 are chamfered;
[0059] A U-shaped groove 41 is provided on one long side of the first ear plate 21;
[0060] A bolt hole 42 is provided on each side of the U-shaped groove 41.
[0061] Furthermore, the first ear plate 21 is disposed on the top of the base plate 10, and the U-shaped groove 41 of the first ear plate 41 faces the through hole 101 of the base plate 10.
[0062] Anchor bolts 50 pass through the U-shaped grooves 41 of the same edge of the upper base plate 11 and the lower base plate 12, as well as the U-shaped grooves 41 of the first ear plate 21;
[0063] The bolt holes 42 of the first ear plate 21 are opposite to the bolt holes 42 of the base plate and are fixed by bolts 44.
[0064] Understandably, the opening of the U-shaped groove 41 on the edge of the base plate 10 faces outwards. Therefore, the first ear plate 21 is designed in a rectangular shape, and the chamfering improves the quality of the workpiece and avoids the risk of scratches from sharp corners. The size of the opening of the U-shaped groove 41 of the first ear plate 21 is the same as the size of the opening of the U-shaped groove 41 on the edge of the base plate 10. After the anchor bolt 50 passes through the U-shaped groove 41 on the edge of the base plate 10, the end facing the edge is open. Therefore, the first ear plate 21 is stacked upside down on top of the base plate 10 to fix the opening of the U-shaped groove 41 on the edge of the base plate 10. The bolt holes 42 on both sides of the U-shaped groove 41 of the first ear plate 21 are opposite to the bolt holes 42 on both sides of the U-shaped groove on the edge of the base plate, and can be fixed by bolts 44. In this way, the first ear plate 21 fixes the anchor bolt 50 and the base plate 10.
[0065] Similarly, refer to Figure 4 As shown, the ear plate 20 includes a second ear plate 22, which is adapted to the U-shaped groove 41 at the corner of the base plate 10;
[0066] The second ear plate 22 is triangular, and the short side of the second ear plate 22 is chamfered;
[0067] The second ear plate 22 has a U-shaped groove 41 on its oblique side;
[0068] A bolt hole 42 is provided on each side of the U-shaped groove 41.
[0069] Furthermore, the second ear plate 22 is disposed on the top of the base plate 10, and the U-shaped groove 41 of the second ear plate 22 faces the through hole 101 of the base plate 10.
[0070] Anchor bolts 50 pass through the U-shaped grooves 41 at the same corner of the upper base plate 11 and the lower base plate 12, as well as the U-shaped grooves 41 of the second ear plate 22;
[0071] The bolt holes 42 of the second ear plate 22 are opposite to the bolt holes 42 of the base plate 10 and are fixed by bolts 44.
[0072] Understandably, creating a U-shaped groove 41 at the corner of the base plate 10 would result in a missing corner. Therefore, the second ear plate 22 is triangular, with the U-shaped groove 41 created on its hypotenuse. When the second ear plate 22 is fixed to the anchor bolt 50 at the corner of the base plate 10, the opening of the U-shaped groove 41 of the second ear plate 22 faces inward. The right-angled portion of the second ear plate 22 can fill in the missing corner of the base plate 10, making the workpiece more stable.
[0073] In one alternative implementation, refer to Figure 5 As shown, one end of the movable axis positioning rod 30 is arc-shaped, and the other end is triangular; the triangle facilitates subsequent positioning and locating of the axis.
[0074] The movable axis positioning rod 30 has a nut hole at its arc end.
[0075] The movable axis positioning rod 30 is set on the top of the upper base plate 11;
[0076] The movable axis positioning rod 30 is perpendicular to the strip hole 102, and its triangular end points towards the through hole 101 of the upper base plate 11;
[0077] Nut 43 passes through strip hole 102 and connects to nut 43 hole of movable axis positioning rod 30.
[0078] It is understood that the movable axis positioning rod 30 can be fixed by the nut 43 passing through the strip hole 102. Therefore, the U-shaped groove 41 opened on the edge of the base plate 10 or the anchor bolt 50 connected to the edge of the base plate 10 can be positioned according to the movable axis positioning rod 30. Specifically, the movable axis positioning rod 30 is fixed in a position opposite to the U-shaped groove 41 or the anchor bolt 50. Then the direction perpendicular to the anchor bolt 50 is the direction in which the anchor bolt 50 is located.
[0079] In one alternative implementation, refer to Figure 6 As shown, the top of the anchor bolt 50 is provided with a washer 45 and a nut 43;
[0080] The gasket 45 is disposed on the top of the upper base plate 11 and is fitted onto the top of the anchor bolt 50;
[0081] Nut 43 is attached to the top of anchor bolt 50 to fix anchor bolt 50, washer 45 and upper base plate 11.
[0082] The structure of the multi-anchor bolt embedded workpiece 100 has been described in detail above. Its application method is as follows:
[0083] Assemble the base plate 10, anchor bolts 50, ear plates 20, and movable axis positioning rod 30 in the background. Place the workpiece 100 in the foundation pit, where the position of the anchor bolts 50 can be located using the movable axis positioning rod 30. Weld the anchor bolts 50 to the reinforcing bars. After welding, first remove the lower base plate 12 and the ear plates 20 connected to it. Then, pour concrete. Before installing the steel columns, remove the upper base plate 11, the ear plates 20 connected to it, and the movable axis positioning rod 30.
[0084] In summary, the multi-anchor bolt pre-embedded workpiece provided by this utility model achieves at least the following beneficial effects:
[0085] In the embodiments provided by this utility model, anchor bolts are fixed vertically using two base plates and ear plates. The shape of the base plates, the number of U-shaped grooves, and their positioning can all be determined according to the actual application. Anchor bolts fixed by the workpiece are in a fixed position during pre-embedding, preventing displacement due to external forces. Furthermore, the positioning can be adjusted using a movable axis positioning rod, improving the accuracy of pre-embedding. Simultaneously, the workpiece can be removed and reused, saving costs.
[0086] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A multi-anchor bolt pre-embedded workpiece, characterized in that, include: Base plate, ear plate, and movable axis positioning rod; A through hole is provided at the geometric center of the base plate, and several U-shaped grooves are provided at the edges and / or corners of the base plate. A bolt hole is provided on each side of the U-shaped groove. A strip-shaped hole is provided between the through hole and the U-shaped groove, and the extending direction of the strip-shaped hole is the same as the extending direction of the edge of the base plate; The base plate includes an upper base plate and a lower base plate; the projections of the upper base plate and the lower base plate in the vertical direction coincide. Any anchor bolt passes through the U-shaped groove at the same position on the upper base plate and the lower base plate, and is fixed by the ear plate; The movable axis positioning rod is installed in the strip hole by a nut.
2. The multi-anchor bolt embedded workpiece according to claim 1, characterized in that, The ear plate includes a first ear plate, which is adapted to the U-shaped groove on the edge of the base plate; The first ear plate is rectangular, and the corners of the first ear plate are chamfered; A U-shaped groove is formed on one long side of the first ear plate; A bolt hole is provided on each side of the U-shaped groove.
3. The multi-anchor bolt embedded workpiece according to claim 2, characterized in that, The first ear plate is disposed on the top of the base plate, and the U-shaped groove of the first ear plate faces the direction of the through hole of the base plate; The anchor bolts pass through the U-shaped grooves on the same edge of the upper base plate and the lower base plate, as well as the U-shaped groove of the first ear plate; The bolt holes of the first ear plate are opposite to the bolt holes of the base plate and are fixed by bolts.
4. The multi-anchor bolt embedded workpiece according to claim 1, characterized in that, The ear plate includes a second ear plate, which is adapted to the U-shaped groove at the corner of the base plate; The second ear plate is triangular, and the short side of the second ear plate is chamfered; The second ear plate has a U-shaped groove on its inclined side; A bolt hole is provided on each side of the U-shaped groove.
5. The multi-anchor bolt embedded workpiece according to claim 4, characterized in that, The second ear plate is disposed on the top of the base plate, and the U-shaped groove of the second ear plate faces the through hole of the base plate; The anchor bolts pass through the U-shaped grooves at the same corner of the upper base plate and the lower base plate, as well as the U-shaped groove of the second ear plate; The bolt holes of the second ear plate are opposite to the bolt holes of the base plate and are fixed by bolts.
6. The multi-anchor bolt embedded workpiece according to claim 1, characterized in that, One end of the movable axis positioning rod is arc-shaped, and the other end is triangular; The movable axis positioning rod has a nut hole at its arc end.
7. The multi-anchor bolt embedded workpiece according to claim 6, characterized in that, The movable axis positioning rod is disposed on the top of the upper base plate; The movable axis positioning rod is perpendicular to the strip hole, and its triangular end points in the direction of the through hole in the upper base plate; The nut passes through the strip-shaped hole and connects to the nut hole of the movable axis positioning rod.
8. The multi-anchor bolt embedded workpiece according to claim 1, characterized in that, The anchor bolt is provided with a washer and a nut at the top; The gasket is disposed on the top of the upper base plate and is fitted onto the top of the anchor bolt; The nut is connected to the top of the anchor bolt, fixing the anchor bolt, the washer, and the upper base plate.