Auxiliary positioning device for bolt reserved hole

By designing an auxiliary positioning device for bolt pre-drilled holes, and utilizing positioning mechanisms and scale lines, rapid and accurate positioning is achieved, solving the problem of low construction efficiency caused by multiple measurements in existing technologies, and improving the efficiency and accuracy of bolt pre-drilled hole opening.

CN224078721UActive Publication Date: 2026-04-03XUCHANG GUANGLI HIGHWAY ENG CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing technologies require multiple measurements when locating bolt pre-drilled holes, resulting in low construction efficiency and making it difficult to meet the requirements for high-efficiency operations.

Method used

An auxiliary positioning device comprising a fixed section and an adjustable section was designed, equipped with a positioning mechanism, a limit component and a spirit level, and achieves rapid and accurate positioning through positioning rods and holes of different diameters, scale lines, etc.

Benefits of technology

It improves the efficiency of creating pre-drilled holes for bolts in large quantities, meets different needs, ensures accurate positioning, and enhances construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of embedded hole auxiliary positioning, in particular to an auxiliary positioning device for a bolt reserved hole, which comprises a fixing section, an adjusting section is arranged on one side of the fixing section, and a positioning mechanism is arranged on the outer side of the fixing section. The positioning mechanism comprises a first rotating shaft, the first rotating shaft is movably connected to the inner side of the fixed section through a bearing, a limiting disc is fixedly connected to the bottom end of the first rotating shaft, positioning rods with different diameters are arranged at the top of the limiting disc, and an inner rod capable of sliding on the inner side of the fixed section is fixedly connected to the side, close to the fixed section, of the adjusting section. According to the utility model, through the arrangement of the positioning mechanism, when a large batch of bolt reserved holes of the same type are formed, auxiliary positioning can be quickly carried out on the positions of the bolt reserved holes, and then trepanning is carried out through trepanning equipment, so that the forming efficiency of the large batch of bolt reserved holes of the same type is greatly improved, and the requirement of building construction on efficient operation is met.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary positioning technology for pre-embedded holes, specifically to an auxiliary positioning device for bolt pre-reserved holes. Background Technology

[0002] Bolt pre-drilled holes are holes pre-drilled in concrete structures, steel structures, or other substrates during construction, bridge building, and mechanical equipment installation projects. These holes are used for the subsequent installation of bolts or anchors to connect, fix, or reinforce components. The location of the bolt pre-drilled holes is determined according to the design drawings. During construction, the bolt pre-drilled holes are made on the building according to the locations marked on the drawings.

[0003] When making bolt holes in buildings, in order to ensure the accuracy of the bolt hole position, it is usually necessary to use a ruler to measure, and then determine the drilling position based on the measurement data, and then drill the hole using drilling equipment.

[0004] However, existing technologies often require multiple measurements to ensure the accuracy of bolt pre-drilled holes when locating them. This process significantly reduces work efficiency in scenarios involving the creation of large batches of bolt pre-drilled holes, making it difficult to meet the requirements of efficient construction work. Therefore, we propose an auxiliary positioning device for bolt pre-drilled holes. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an auxiliary positioning device for bolt pre-drilled holes, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides an auxiliary positioning device for bolt pre-drilled holes, including a fixed section, an adjustment section on one side of the fixed section, and a positioning mechanism on the outside of the fixed section;

[0008] The positioning mechanism includes a first rotating shaft, which is movably connected to the inner side of the fixed section via a bearing. A limiting plate is fixedly connected to the bottom end of the first rotating shaft, and positioning rods of different diameters are provided on the top of the limiting plate. An inner rod that can slide inside the fixed section is fixedly connected to the side of the adjusting section near the fixed section. A second rotating shaft is movably connected to the outer side of the adjusting section via a bearing, and a positioning plate is fixedly connected to the bottom end of the second rotating shaft. Positioning holes of different diameters are opened on the top of the positioning plate. Limiting components are provided at the top ends of both the first and second rotating shafts.

[0009] Preferably, a spirit level is fixedly connected to the outer side of the fixed section, and a scale line is provided on the outer side of the inner rod.

[0010] Preferably, a screw hole is provided at the top of the fixed section, and a limit bolt is threadedly connected to the inner side of the screw hole.

[0011] Preferably, a rotating block is fixedly connected to the top of the positioning rod, and the rotating block has notches distributed at equal intervals on its outer side.

[0012] Preferably, the limiting component includes two fixing blocks, which are respectively fixedly connected to the top end of the first rotating shaft and the top end of the second rotating shaft. The inner side of the fixing block is provided with a limiting rod that can slide up and down, and the outer side of the fixing section and the outer side of the adjusting section are provided with limiting holes distributed in a ring.

[0013] Preferably, a top block is fixedly connected to the top of the limiting rod, and a tension spring is fixedly connected to the bottom of the top block, with the tension spring fixedly connected to the top of the fixing block.

[0014] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0015] 1. By setting up a positioning mechanism, this utility model can quickly and assisted in positioning the position of the bolt pre-reserved holes when making a large number of similar bolt pre-reserved holes, and then make holes by using a hole-making device, which greatly improves the efficiency of making a large number of similar bolt pre-reserved holes and meets the requirements of efficient operation in construction.

[0016] 2. By setting positioning rods and positioning holes of different diameters, this utility model can open bolt pre-reserved holes of different diameters according to the design drawings when making bolt pre-reserved holes, thus meeting different needs in building construction.

[0017] 3. By setting the limiting bolt, inner rod and scale line, this utility model allows the distance between the adjusting section and the fixed section to be adjusted according to the bolt pre-drilling requirements when making bolt pre-drilling holes, thereby meeting the bolt pre-drilling requirements of different distances and further improving the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the auxiliary positioning device of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure at the fixed section of this utility model;

[0021] Figure 3 This is a schematic diagram of a portion of the structure of the limiting disc of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the adjustment section of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning disc structure of this utility model.

[0024] The labels in the diagram represent:

[0025] 1. Fixed section; 2. Adjustable section; 3. Positioning mechanism; 31. Limiting plate; 32. Limiting assembly; 321. Limiting hole; 322. Top block; 323. Tension spring; 324. Limiting rod; 325. Fixed block; 33. Rotating block; 34. Positioning rod; 35. Spirit level; 36. Limiting bolt; 37. Rotating shaft one; 38. Inner rod; 39. Scale line; 310. Positioning plate; 311. Positioning hole; 312. Rotating shaft two. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1:

[0029] Reference Figure 1-5 This is the first embodiment of the present utility model, which discloses an auxiliary positioning device for bolt pre-drilled holes, including a fixed section 1, an adjusting section 2 on one side of the fixed section 1, and a positioning mechanism 3 on the outside of the fixed section 1;

[0030] The fixed section 1 has a chamber on the side near the adjusting section 2 for the inner rod 38 to move within the chamber. Mounting holes are provided on the outer side of both the adjusting section 2 and the fixed section 1 for the installation of the first rotating shaft 37 and the second rotating shaft 312.

[0031] The positioning mechanism 3 includes a first rotating shaft 37, which is movably connected to the inside of the fixed section 1 via a bearing. A limit plate 31 is fixedly connected to the bottom end of the first rotating shaft 37. The top of the limit plate 31 is provided with positioning rods 34 of different diameters. An inner rod 38 that can slide inside the fixed section 1 is fixedly connected to the side of the adjusting section 2 near the fixed section 1. A second rotating shaft 312 is movably connected to the outside of the adjusting section 2 via a bearing. A positioning plate 310 is fixedly connected to the bottom end of the second rotating shaft 312. The top of the positioning plate 310 is provided with positioning holes 311 of different diameters. Limit components 32 are provided at the top of both the first rotating shaft 37 and the second rotating shaft 312.

[0032] The positioning rod 34 has a thread on its outer side, and the limiting plate 31 has a screw hole 2 on its outer side. The positioning rod 34 is threaded into the inner side of the screw hole 2. The position of the positioning rod 34 can be adjusted by rotating it. After selecting a positioning rod 34 of appropriate diameter, rotate it so that its other end is longer than other positioning rods 34, so that it can be easily inserted into the pre-drilled bolt hole and positioned for the next bolt pre-drilled hole.

[0033] Specifically, a spirit level 35 is fixedly connected to the outer side of the fixed section 1, and a scale line 39 is provided on the outer side of the inner rod 38. A screw hole is opened at the top of the fixed section 1, and a limit bolt 36 is threadedly connected to the inner side of the screw hole.

[0034] The level bubble 35 is used to keep the fixed section 1 and the adjusting section 2 in a horizontal position when the bolt pre-drilled hole is positioned, thereby ensuring that the bolt pre-drilled hole positioned by the positioning hole 311 is accurate and will not be offset.

[0035] The distance between the limiting plate 31 and the positioning plate 310 can be adjusted by the scale line 39, thereby adjusting the distance between two adjacent bolt pre-drilled holes according to design requirements, to meet the needs of opening different bolt pre-drilled holes. The position of the inner rod 38 can be limited by the limiting bolt 36, thereby limiting the distance between the adjusted limiting plate 31 and the positioning plate 310, which facilitates the opening of a large number of holes through this auxiliary positioning device.

[0036] Specifically, a rotating block 33 is fixedly connected to the top of the positioning rod 34, and the rotating block 33 has notches distributed at equal intervals on its outer side.

[0037] The rotating block 33 facilitates the rotation of the positioning rod 34, thereby adjusting the position of the positioning rod 34. According to the diameter requirements of the bolt pre-drilled hole in the design drawing, a positioning rod 34 of suitable thickness is selected so that it enters the pre-drilled bolt pre-drilled hole. Then, the device is used to position the next bolt pre-drilled hole to be drilled.

[0038] Example 2:

[0039] Reference Figure 1-5This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0040] The limiting component 32 includes two fixing blocks 325, which are fixedly connected to the top of the first rotating shaft 37 and the top of the second rotating shaft 312 respectively. The inner side of the fixing block 325 is provided with a limiting rod 324 that can slide up and down. The outer side of the fixing section 1 and the outer side of the adjusting section 2 are provided with limiting holes 321 distributed in a ring.

[0041] Specifically, the top of the fixing block 325 has a vertical sliding hole, and the limiting rod 324 is slidably connected to the inside of the sliding hole.

[0042] The limiting component 32 is used to limit the position of the adjusted limiting plate 31 and positioning plate 310 when adjusting the positioning rod 34 with different diameters and the positioning hole 311 with different diameters, so as to ensure the stability of the device when positioning the bolt pre-reserved hole and improve the accuracy of positioning the bolt pre-reserved hole.

[0043] Specifically, a top block 322 is fixedly connected to the top of the limiting rod 324, and a tension spring 323 is fixedly connected to the bottom of the top block 322. The tension spring 323 is fixedly connected to the top of the fixing block 325.

[0044] The top block 322 facilitates the upward pulling of the limiting rod 324, allowing it to move out of the limiting hole 321, thus facilitating the adjustment of the position of the limiting plate 31 or the positioning plate 310, and enabling the opening of bolt pre-drilled holes of different diameters.

[0045] The remaining structure is the same as that in Example 1.

[0046] The workflow of this utility model is as follows:

[0047] According to the diameter of the bolt pre-reserved hole to be opened in the design drawings, pull the top block 322 upward so that the bottom end of the limit rod 324 leaves the limit hole 321, and cancel the limit on the first rotating shaft 37 and the second rotating shaft 312. At this time, the position of the limit plate 31 and the positioning plate 310 can be adjusted, and the appropriate positioning rod 34 and positioning hole 311 can be selected.

[0048] Then, based on the distance between the two adjacent bolt pre-drilled holes, adjust the distance between the adjusting section 2 and the fixed section 1. During adjustment, rotate the inner limit bolt 36 to cancel its limitation on the inner rod 38. At this time, you can pull the adjusting section 2 according to the scale line 39 to adjust the distance between the two. After the adjustment is completed, rotate the limit bolt 36 in the opposite direction to limit the position of the inner rod 38.

[0049] The first bolt pre-drilled hole is located and drilled using a measuring tool. After drilling, the selected positioning rod 34 is inserted into the drilled bolt pre-drilled hole. The fixed section 1 and the adjusting section 2 are rotated until the fixed section 1 is horizontal as observed by the bubble level 35. The selected positioning hole 311 at this time is the drilling position of the next bolt pre-drilled hole. The drilling operation can be performed by passing the drilling equipment through the positioning hole 311. Repeating the above operation can quickly locate the same type of bolt pre-drilled hole.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary positioning device for bolt hole reservation, characterized in that, Including fixed section (1), one side of fixed section (1) is provided with adjusting section (2), and the outer side of fixed section (1) is provided with positioning mechanism (3); The positioning mechanism (3) includes a rotating shaft one (37), the rotating shaft one (37) is movably connected in the inner side of the fixed section (1) through the bearing, the bottom end of the rotating shaft one (37) is fixedly connected with the limiting disc (31), the top of the limiting disc (31) is provided with the positioning rod (34) with different diameters, the side of the adjusting section (2) close to the fixed section (1) is fixedly connected with the inner rod (38) which can slide in the inner side of the fixed section (1), the outer side of the adjusting section (2) is movably connected with the rotating shaft two (312) through the bearing, the bottom end of the rotating shaft two (312) is fixedly connected with the positioning disc (310), the top of the positioning disc (310) is provided with the positioning hole (311) with different diameters, and the top end of the rotating shaft one (37) and the top end of the rotating shaft two (312) are provided with the limiting assembly (32).

2. A bolt hole marking device as claimed in claim 1, wherein, The outer side of the fixed section (1) is fixedly connected with the bubble level (35), and the outer side of the inner rod (38) is provided with the scale line (39).

3. The auxiliary positioning device for bolt hole according to claim 1, characterized in that, The top of the fixed section (1) is provided with a screw hole one, and the inner side of the screw hole one is threadedly connected with the limiting bolt (36).

4. The auxiliary positioning device for bolt hole according to claim 1, characterized in that, The top end of the positioning rod (34) is fixedly connected with the rotating block (33), and the outer side of the rotating block (33) is provided with the notches distributed at equal intervals.

5. The auxiliary positioning device for bolt hole according to claim 1, characterized in that, The limiting assembly (32) includes two fixed blocks (325), and the top end of the rotating shaft one (37) and the top end of the rotating shaft two (312) are fixedly connected with the two fixed blocks (325), respectively, the inner side of the fixed block (325) is provided with the limiting rod (324) which can slide up and down, and the outer side of the fixed section (1) and the outer side of the adjusting section (2) are provided with the limiting hole (321) which is distributed in a ring shape.

6. A bolt hole location aid according to claim 5, wherein, The top end of the limiting rod (324) is fixedly connected with the top block (322), the bottom of the top block (322) is fixedly connected with the tension spring (323), and the tension spring (323) is fixedly connected to the top of the fixed block (325).