Angle-adjustable drilling machine auxiliary device for coring detection of building retaining wall

Abstract

The utility model provides an angle-adjustable drilling machine auxiliary device for building retaining wall coring detection, which comprises a main mounting base, an angle adjusting assembly and a rack assembly, the angle adjusting assembly is arranged on the main mounting base, and the rack assembly is arranged on the angle adjusting assembly; the angle adjusting assembly comprises a circular rotating part, a sliding part and a limiting part, an angle adjusting groove is formed in the circular rotating part, and the sliding part is slidably inserted into the angle adjusting groove; the rack assembly comprises a rack support, a rack and a gear, one end of the circular rotating part is fixed to the lower end of the rack support, the rack is fixed to the gear support, and the gear support and the rack are sleeved with the gear fixing frame; the gear is arranged in the gear fixing frame through the gear rotating shaft and the bearing rotating frame and meshed with the rack, and a drilling machine mounting base is arranged at the top of the gear fixing frame. The utility model has the advantages of small size, portability, small operation space, high economical efficiency, simplicity and convenience in operation, accurate adjustment of drilling angle, high applicability and the like.

Description

[Technical Field]

[0001] This utility model relates to an angle-adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls. [Background Technology]

[0002] For the inspection of retaining wall dimensions, the standard recommends using methods such as pit exploration, direct measurement, non-destructive testing, and drilling. However, in actual engineering, pit exploration involves a large amount of excavation and can affect the safety of the retaining wall, so it is rarely used. Direct measurement can only measure the apparent dimensions, and since retaining walls often have variable cross-sections, the shape of the back of the wall under concealed works cannot be obtained. Non-destructive testing is affected by the differences in the properties of the retaining wall itself and the surrounding soil, and needs to be combined with other methods to ensure the accuracy of the test. Drilling can directly obtain the cross-sectional dimensions, is simple and intuitive, and has high accuracy, so it is currently the main method for retaining wall inspection.

[0003] Currently, most concrete core sampling equipment on the market is used in the building construction and road industries, with a vertical sampling direction. When horizontal core sampling is required, exploration drilling rigs (such as the XY-100 model) are often modified. Although core sampling can be performed at the bottom of the retaining wall, it is extremely difficult to perform core sampling in the middle and above of the wall due to the bulky equipment. If road concrete core sampling equipment (such as diamond drilling machines) is used, the drilling rig needs to be fixed to the wall surface using a bracket. The core sampling efficiency is high, but the core sampling angle cannot be adjusted. That is, for building retaining walls with a certain slope, it is difficult to accurately control the core sampling angle, and the accuracy of retaining wall size detection cannot be guaranteed.

[0004] Due to the relatively narrow spaces around retaining walls in urban residential areas, conventional exploration drilling rigs, while possessing strong core drilling capabilities, suffer from drawbacks such as high cost, inconvenient relocation and assembly, and large operating space requirements during construction, making core sampling difficult. Small handheld drilling rigs are lightweight and convenient, but their core sampling depth is mostly limited to 600-700mm, unable to penetrate the retaining wall. Furthermore, the core sampling angle relies on visual estimation and manual control, leading to errors. In particular, the retaining wall surface is often not vertical, exhibiting an angle that makes accurate control of the drilling angle difficult when drilling horizontally. [Utility Model Content]

[0005] The technical problem to be solved by this utility model is to provide an adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls. It has the advantages of being small and portable, having a small operating space, being highly economical, easy to operate, and having a precisely adjustable drilling angle. In addition to core sampling and testing of retaining walls, it can also be used for unblocking and adding failed drainage holes, making it highly applicable.

[0006] This utility model is implemented as follows:

[0007] An angle-adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls includes a main mounting base, an angle adjustment assembly, and a rack assembly. The main mounting base includes a mounting base plate and a fixing bracket, and the fixing bracket is disposed on the mounting base plate.

[0008] The angle adjustment assembly includes a circular rotating part, a sliding member, and a limiting member. The center of the circular rotating part is rotatably mounted on the fixed bracket via a rotating shaft. An angle adjustment groove is provided on the circular rotating part. The sliding member is slidably inserted into the angle adjustment groove. One end of the sliding member is fixed on a limiting member, and the other end is kept relatively fixed to the angle adjustment groove via the limiting member. The lower end of the limiting member is provided on the mounting base plate.

[0009] The rack assembly includes a rack support, a rack, a gear, a bearing, a gear drive shaft, and a gear retainer. One end of the circular rotating part is fixed to the lower end of the rack support. The rack is fixed to the gear support, and the gear retainer is sleeved on the outside of the gear support and the rack. The gear drive shaft passes through the gear, and the bearing is sleeved on the gear drive shaft. The gear is rotatably mounted inside the gear retainer through the gear drive shaft and the bearing, and the gear meshes with the rack. One end of the gear drive shaft extends out of the gear retainer.

[0010] The top of the gear fixing frame is equipped with a drilling rig mounting base.

[0011] Furthermore, the mounting base plate is provided with fixing holes around its perimeter.

[0012] Furthermore, the angle adjustment assembly also includes a dial and a pointer. The center of the dial is connected to the end of the rotating shaft via a damping bearing. The pointer is fixed to the side of the rack fixing bracket and is located above the dial. The indicating end of the pointer cooperates with the dial.

[0013] Furthermore, the angle adjustment assembly also includes a plumb line and a plumb bob, the plumb bob being fixed below the plumb line, and the free end of the plumb line being fixed on a rotating shaft outside the dial.

[0014] Furthermore, the sliding element is a bolt, the limiting element is a nut, and the bolt and nut are threaded together.

[0015] Furthermore, the angle adjustment groove is an arc-shaped groove.

[0016] Furthermore, the lower end of the rack support extends to the middle of the circular rotating part, and the middle part of the rotating shaft passes through the lower end of the circular rotating part and the rack support in sequence.

[0017] Furthermore, an elastic retaining ring is provided between the outer side of the bearing and the gear fixing frame.

[0018] The advantages of this utility model are:

[0019] Addressing the challenges of limited space for retaining walls in urban residential areas, wall thickness not exceeding 3 meters, and sloping wall surfaces, this invention adds an auxiliary device to a drilling rig with drilling capabilities. The entire system is compact, requires minimal operating space, and is suitable for core sampling and testing of building retaining walls. The auxiliary device, through its main mounting base, angle adjustment assembly, and rack and pinion assembly, reduces operator workload while precisely controlling the drilling angle, significantly improving the efficiency and accuracy of core sampling. The dial and pointer design make angle adjustment more intuitive and convenient, avoiding human error inherent in traditional methods.

[0020] In summary, compared with traditional horizontal drilling modification equipment, this utility model has the advantages of being small and portable, economical, easy to operate, with precise adjustment of drilling angle, and small operating space. It can also meet the special requirements of narrow space and precise angle control. In addition to retaining wall core testing, it can also be used for unclogging and adding failed drainage holes, making it highly applicable. [Attached Image Description]

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a perspective view of a drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls, according to this utility model.

[0023] Figure 2 This is a perspective view of another angle of the drilling rig auxiliary device for core sampling and testing of building retaining walls, which is an adjustable-angle device according to this utility model.

[0024] Figure 3 This is a partial enlarged view of the main mounting base and angle adjustment component of an angle-adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls, according to this utility model.

[0025] Figure 4 This is a cross-sectional view of a gear fixing frame of a drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls, according to this utility model.

[0026] The numbers in the image are as follows:

[0027] 1. Main mounting base; 11. Mounting base plate; 12. Fixed bracket; 13. Limiting bracket; 14. Fixing hole; 2. Angle adjustment assembly; 21. Circular rotating part; 22. Sliding part; 23. Limiting part; 24. Angle adjustment groove; 25. Dial; 26. Pointer; 27. Damping bearing; 28. Plumb line; 29. ​​Plumb; 3. Rack assembly; 31. Rack bracket; 32. Rack; 33. Gear; 34. Bearing; 35. Gear drive shaft; 36. Gear fixing bracket; 37. Elastic retaining ring; 4. Drilling rig mounting base; 100. Drilling machine.

Detailed Implementation Methods

[0028] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figures 1 to 4 As shown, the present invention provides an angle-adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls, comprising a main mounting base 1, an angle adjustment component 2, and a rack and pinion assembly 3. The main mounting base 1 includes a mounting base plate 11 and a fixing bracket 12, wherein the fixing bracket 12 is disposed on the mounting base plate 11.

[0031] The angle adjustment assembly 2 includes a circular rotating part 21, a sliding member 22, and a limiting member 23. The center of the circular rotating part 21 is rotatably mounted on the fixed bracket 12 via a rotating shaft. An angle adjustment groove 24 is provided on the circular rotating part 21. The sliding member 22 is slidably inserted into the angle adjustment groove 24. One end of the sliding member 22 is fixed on a limiting bracket 13, and the other end is kept relatively fixed to the angle adjustment groove 24 through the limiting member 23. The lower end of the limiting bracket 13 is provided on the mounting base plate 11.

[0032] The rack assembly 3 includes a rack support 31, a rack 32, a gear 33, a bearing 34, a gear drive shaft 35, and a gear fixing bracket 36. One end of the circular rotating part 21 is fixed to the lower end of the rack support 31. The rack 32 is fixed on the gear support 31. The gear fixing bracket 36 is sleeved on the outside of the gear support 31 and the rack 32. The gear drive shaft 35 passes through the gear 33. The bearing 34 is sleeved on the gear drive shaft 35. The gear 33 is rotatably mounted inside the gear fixing bracket 35 through the gear drive shaft 35 and the bearing 34. The gear 33 meshes with the rack 32. One end of the gear drive shaft 35 extends out of the gear fixing bracket 36.

[0033] The gear fixing bracket 36 is provided with a drilling rig mounting base 4 on its top.

[0034] In a preferred embodiment, the mounting base plate 11 is provided with fixing holes 14 around its perimeter.

[0035] In a preferred embodiment, the angle adjustment component 2 further includes a dial 25 and a pointer 26. The middle part of the dial 25 is connected to the end of the rotating shaft via a damping bearing 27. The pointer 26 is fixed to the side of the rack fixing bracket 31 and is located above the dial 25. The indicating end of the pointer 26 cooperates with the dial 25. The damping bearing 27 ensures that the dial 25 remains stationary when the circular rotating part 21 rotates. When the pointer 26 indicates the corresponding angle scale, the sliding member 22 and the limiting member 23 can be fixed, so that the rack bracket 31 is limited to the required angle, that is, the drilling machine 100 installed on it is adjusted and limited to the required angle.

[0036] In a preferred embodiment, the angle adjustment component 2 further includes a plumb line 28 and a plumb bob 29. The plumb bob 29 is fixed below the plumb line 28, and the free end of the plumb line 28 is fixed on the rotating shaft outside the scale 25. Since the retaining wall is inclined, the vertical and horizontal positions of the device can be accurately located by setting the plumb line 28 and the plumb bob 29. In conjunction with the scale 25 and the pointer 26, the rotation angle of the device can be adjusted more quickly and accurately.

[0037] In a preferred embodiment, the sliding member 22 is a bolt, the limiting member 23 is a nut, and the bolt and nut are threaded together.

[0038] In a preferred embodiment, the angle adjustment groove 24 is an arc-shaped groove.

[0039] In a preferred embodiment, the lower end of the rack support 31 extends to the middle of the circular rotating part 21, and the middle part of the rotating shaft passes through the lower end of the circular rotating part 21 and the rack support 31 in sequence; this can increase the overall stability of the device.

[0040] In a preferred embodiment, an elastic retaining ring 37 is provided between the outer side of the bearing 34 and the gear fixing frame 36.

[0041] In another embodiment of this utility model, during use, the diamond drilling machine 100 is first installed on the drilling machine mounting base 4, the auxiliary device is placed at the predetermined core-taking position, and the mounting base plate 11 is fixed to the wall with bolts; check whether the plumb line 28 is vertical, adjust the angle of the drilling machine as needed, rotate the circular rotating part 21, observe the position of the pointer 29 on the scale 28 until the required tilt angle is reached, lock the limit member 23 to prevent the circular rotating part 21 from rotating accidentally; finally, rotate the gear 33 through the gear transmission shaft 35 to make it move along the rack 32, and drive the gear fixing frame 36 to move until the diamond drilling machine 100 installed on the upper end of the gear fixing frame 36 is close to the wall, and start the diamond drilling machine 100 to begin the core-taking operation; after the core-taking is completed, retract the diamond drilling machine 100, unlock the limit member 23, restore the circular rotating part 21 to the initial position, remove the device, and clean up the site.

[0042] In summary, this utility model has the following advantages:

[0043] Addressing the challenges of limited space for retaining walls in urban residential areas, wall thickness not exceeding 3 meters, and sloping wall surfaces, this invention adds an auxiliary device to a drilling rig with drilling capabilities. The entire system is compact, requires minimal operating space, and is suitable for core sampling and testing of building retaining walls. The auxiliary device, through its main mounting base, angle adjustment assembly, and rack and pinion assembly, reduces operator workload while precisely controlling the drilling angle, significantly improving the efficiency and accuracy of core sampling. The dial and pointer design make angle adjustment more intuitive and convenient, avoiding human error inherent in traditional methods.

[0044] In summary, compared with traditional horizontal drilling modification equipment, this utility model has the advantages of being small and portable, economical, easy to operate, with precise adjustment of drilling angle and small operating space. In addition to core sampling and testing of retaining walls, it can also be used for unclogging and adding of failed drainage holes, making it highly applicable.

[0045] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An angle-adjustable drilling rig auxiliary device for core sampling and testing of building retaining walls, characterized in that: It includes a main mounting base, an angle adjustment assembly, and a rack assembly. The main mounting base includes a mounting base plate and a fixing bracket, and the fixing bracket is disposed on the mounting base plate. The angle adjustment assembly includes a circular rotating part, a sliding member, and a limiting member. The center of the circular rotating part is rotatably mounted on the fixed bracket via a rotating shaft. An angle adjustment groove is provided on the circular rotating part. The sliding member is slidably inserted into the angle adjustment groove. One end of the sliding member is fixed on a limiting member, and the other end is kept relatively fixed to the angle adjustment groove via the limiting member. The lower end of the limiting member is provided on the mounting base plate. The rack assembly includes a rack support, a rack, a gear, a bearing, a gear drive shaft, and a gear retainer. One end of the circular rotating part is fixed to the lower end of the rack support. The rack is fixed to the gear support, and the gear retainer is sleeved on the outside of the gear support and the rack. The gear drive shaft passes through the gear, and the bearing is sleeved on the gear drive shaft. The gear is rotatably mounted inside the gear retainer through the gear drive shaft and the bearing, and the gear meshes with the rack. One end of the gear drive shaft extends out of the gear retainer. The top of the gear fixing frame is equipped with a drilling rig mounting base.

2. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: The mounting base plate has fixing holes around its perimeter.

3. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: The angle adjustment assembly also includes a dial and a pointer. The middle part of the dial is connected to the end of the rotating shaft through a damping bearing. The pointer is fixed to the side of the rack fixing bracket and is located above the dial. The indicating end of the pointer cooperates with the dial.

4. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 3, characterized in that: The angle adjustment assembly also includes a plumb line and a plumb bob, the plumb bob being fixed below the plumb line, and the free end of the plumb line being fixed on a rotating shaft outside the dial.

5. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: The sliding component is a bolt, and the limiting component is a nut, with the bolt and nut being threaded together.

6. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: The angle adjustment groove is an arc-shaped groove.

7. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: The lower end of the rack support extends to the middle of the circular rotating part, and the middle part of the rotating shaft passes through the circular rotating part and the lower end of the rack support in sequence.

8. The drilling rig auxiliary device with adjustable angle for core sampling and testing of building retaining walls as described in claim 1, characterized in that: An elastic retaining ring is provided between the outer side of the bearing and the gear fixing frame.

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