Sampling device suitable for constructional engineering quality detection

Abstract

The invention discloses a sampling device suitable for constructional engineering quality detection, the sampling device comprises a mounting seat and a drilling deviation prevention mechanism arranged on the mounting seat, and the drilling deviation prevention mechanism comprises two groups of guide assemblies and deviation prevention sleeves; the two guide assemblies are symmetrically arranged on the two sides of the mounting base, each guide assembly comprises a guide column, a sliding sleeve, an abutting part and a locking structure, the guide columns are horizontally arranged, the mounting base is in an L shape, one end of each guide column is fixed to the longitudinal side wall of the mounting base, one end of each sliding sleeve is slidably connected with the corresponding guide column, and the other end of each sliding sleeve is fixed to the corresponding abutting part. The locking structure is arranged on the sliding sleeve and used for locking the sliding position of the sliding sleeve. The side walls of the two sides of the deviation preventing sleeve are fixedly connected with the two sliding sleeves through connecting rods, and a drill rod is arranged in the deviation preventing sleeve in a penetrating mode. Through cooperation of the guide column, the sliding sleeve, the abutting part and the locking structure, abutting limiting of the wall surface is achieved without an insertion mode, deviation-preventing guiding of the drill rod is achieved through the deviation-preventing sleeve, and the flatness of the wall surface is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of engineering detection, in particular to a sampling device suitable for construction engineering quality detection. Background Art

[0002] In order to supervise and inspect the construction quality of the project entity, especially the construction quality of the foundation, main structure, professional equipment installation, etc. involving structural safety and usage function, and ensure that the project quality meets the relevant standards and requirements, it is necessary to test the project quality.

[0003] At present, when conducting quality inspection on the main structure, drilling sampling is usually adopted to sample the main wall to be inspected. A drilling rig is used to drive the drill bit and drill rod to drill holes in the wall, so as to take out concrete samples from the inside of the main wall. The quality inspection process of the main structure is realized by inspecting the concrete samples.

[0004] In the process of drilling and sampling, most of the time, the drill bit is placed against the wall before drilling. When the drill bit is initially rotated, it is easy to be unevenly stressed and deflected by the vibration of the drill rig itself, which not only affects the drilling process, but also causes the sampling area to be offset, and it is impossible to accurately obtain the concrete sample of the desired sampling area. Some current drilling sampling devices usually set some anti-deflection structures on the drill bit and adopt some inserted guide structures. By inserting the inserted guide structure into the wall, the anti-deflection guiding effect of the drill bit is achieved. However, this inserted guide structure is difficult to quickly insert and position on the wall surface with a relatively hard wall material, and it will also cause the drill bit to be stuck in the wall. Extra holes are left on the surface, affecting the flatness of the wall. For example, the patent with publication number CN222212315U discloses a core drilling device for engineering supervision. A retractable and movable positioning rod is arranged on the outside of the sampling drill tube. When drilling, the positioning rod is inserted into the wall for guidance. However, during the insertion process, the positioning rod keeps moving synchronously with the sampling drill tube. The drilling depth of the sampling drill tube is consistent with the insertion depth of the positioning rod. This will leave holes for the positioning rod to be inserted on the wall. Especially when sampling is performed multiple times, there will be too many holes on the wall, which will affect the flatness of the wall and require a lot of manpower to fill. Summary of the invention

[0005] The purpose of the present invention is to provide a sampling device suitable for construction engineering quality inspection to solve the problem that when drilling holes for sampling, there are too many holes on the wall surface to guide the drill bit, which affects the flatness of the wall surface.

[0006] The technical solution of the present invention is:

[0007] A sampling device suitable for quality inspection of construction projects, comprising a mounting seat and a drilling anti-deviation mechanism arranged on the mounting seat, the drilling anti-deviation mechanism comprising two groups of guide components and an anti-deviation sleeve; the two groups of guide components are symmetrically arranged on both sides of the mounting seat, the guide components include a guide column, a sliding sleeve, an abutment portion and a locking structure, the guide column is horizontally arranged, the mounting seat is L-shaped, one end of the guide column is fixed to the longitudinal side wall of the mounting seat, one end of the sliding sleeve is slidably connected to the guide column, the other end of the sliding sleeve is fixed to the abutment portion, and the locking structure is arranged on the sliding sleeve for locking the sliding position of the sliding sleeve; the side walls of the anti-deviation sleeve are fixedly connected to the two sliding sleeves through a connecting rod, and the interior of the anti-deviation sleeve is used to pass a drill rod to achieve positioning and guiding of the drill rod.

[0008] Preferably, as a further improvement of the present invention, the locking structure includes a first motor, a first shaft, a gear and a rack; the first motor is fixed to the top of the lateral side wall of the mounting base; the first shaft is vertically arranged, and the lower end of the first shaft is connected to the output shaft of the first motor; the gear sleeve is fixed to the upper end of the first shaft; the rack is horizontally fixed to the side wall of the sliding sleeve on the side facing away from the anti-deflection sleeve, and the rack is meshed with the gear.

[0009] Preferably, as a further improvement of the present invention, the abutment portion is a conical abutment seat, and the small-diameter end of the conical abutment seat is connected to the other end of the sliding sleeve.

[0010] Preferably, as a further improvement of the present invention, an elastic connection component is provided between the conical abutment seat and the sliding sleeve, and the elastic connection component includes an articulated seat, a swing rod and two return springs; the articulated seat is arranged at the other end of the sliding sleeve, and an articulated shaft is provided inside the articulated seat; one end of the swing rod is hinged to the articulated shaft, and the other end of the swing rod is fixed to the small diameter end of the conical abutment seat; two return springs are symmetrically arranged on both sides of the swing rod, and an angle α is formed between the return spring and the swing rod, and the angle range of the angle α is 25° to 40°, and the two ends of the return spring are respectively connected to the swing rod and the articulated seat.

[0011] Preferably, as a further improvement of the present invention, the angle α is 30°.

[0012] Preferably, as a further improvement of the present invention, the outer surface of the drill rod is provided with an external thread, the inner wall of the anti-deflection sleeve is provided with an internal thread, the anti-deflection sleeve and the drill rod are threadedly connected, and the drilling rig includes a second motor, a second shaft, a first sliding gear and a second sliding gear; the second motor body is fixed to the longitudinal side wall of the mounting seat; the second shaft is horizontally arranged directly below the anti-deflection sleeve, one end of the second shaft is connected to the output shaft of the second motor, and the other end of the second shaft is connected to a bearing seat; the first sliding gear set is fixed on the second shaft; the second sliding gear set is fixed on the drill rod, and the second sliding gear is meshed with the first sliding gear.

[0013] Preferably, as a further improvement of the present invention, annular limit baffles are fixed at both ends of the first sliding gear.

[0014] Preferably, as a further improvement of the present invention, a base is provided below the mounting seat, an inclination adjustment assembly is provided between the base and the mounting seat, and a receiving bucket is provided on the top of the base near the sampling drill bit.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Before drilling, the position of the sliding sleeve is locked by a locking structure to ensure that the abutment portion is always in contact with the wall surface during the drilling process, and the abutment portion is used to form a limiting support for the wall to ensure that the sliding sleeve and the guide column themselves will not deviate, and the side walls of the anti-deflection sleeve are fixedly connected to the two sliding sleeves by a connecting rod, so that the two sliding sleeves are used to form a limit for the anti-deflection sleeve, and the drill rod is guided and limited by the anti-deflection sleeve, so that the drill rod will not deviate during the drilling process. At the same time, since the positions of the abutment portion and the anti-deflection sleeve remain unchanged, the flatness of the wall will not be affected, and only the drill rod and the sampling drill bit are used for drilling and sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of a top view of a sampling device suitable for construction project quality inspection according to an embodiment of the present invention.

[0018] Figure 2 The present invention is a schematic diagram of the main structure of a sampling device suitable for construction project quality inspection according to an embodiment of the present invention.

[0019] Figure 3 The present invention is a schematic diagram of the connection between a first sliding gear and a second sliding gear in a sampling device suitable for construction engineering quality inspection according to an embodiment of the present invention.

[0020] Figure 4 The present invention is a schematic top view of the structure of an optimized solution for a sampling device suitable for construction project quality inspection according to an embodiment of the present invention.

[0021] Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of point A in the figure.

[0022] Figure 6 This is a schematic diagram of the main structure of a sampling device suitable for construction project quality inspection in a discharge state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 To the attached Figure 6 , the specific implementation methods of the present invention are described in detail. In the description of the invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as limiting the present invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the invention, unless otherwise specified, "plurality" means two or more.

[0025] Example

[0026] like Figures 1 to 3 As shown, an embodiment of the present invention provides a sampling device suitable for quality inspection of construction projects, including a mounting seat 1 and a sampling mechanism arranged on the mounting seat 1, the sampling mechanism including a drill rod 31 connected to the drilling rig 2 and a sampling drill bit 32, and also including a drilling anti-deviation mechanism, the drilling anti-deviation mechanism including two groups of guide components and an anti-deviation sleeve 5; the two groups of guide components are symmetrically arranged on both sides of the drill rod 31 with the center line of the drill rod 3 as the symmetry axis, the guide components include a guide column 41, a sliding sleeve 42, an abutment 43 and a locking structure, the guide column 41 is horizontally arranged, the mounting seat 1 is L-shaped, one end of the guide column 41 is fixed to the longitudinal side wall of the mounting seat 1, one end of the sliding sleeve 42 is slidably connected to the guide column 41, and the other end of the sliding sleeve 42 is fixed to the abutment 43, and the locking structure is arranged on the sliding sleeve 42 for locking the sliding position of the sliding sleeve 42; the anti-deviation sleeve 5 is slidably sleeved on the outside of the drill rod 31, and the side walls of the anti-deviation sleeve 5 are fixedly connected to the two sliding sleeves 42 through a connecting rod.

[0027] In this embodiment, the drilling anti-deviation mechanism can prevent the drill rod 31 and the sampling drill bit 32 from deviating when the drill rig 2 drives the drill rod 31 and the sampling drill bit 32 to drill a hole in the wall at the sampling position. The specific anti-deviation principle is as follows:

[0028] Before drilling, release the lock of the sliding sleeve 42 by the locking structure, slide and adjust the position of the sliding sleeve 42 on the guide column 41, so that the abutment 43 contacts and abuts against the wall surface, and then lock the position of the sliding sleeve 42 by the locking structure, so as to ensure that the abutment 43 is always in contact with the wall surface during the drilling process, and the abutment 43 is used to form a limiting support for the wall to ensure that the sliding sleeve 42 and the guide column 41 themselves will not deviate, and the side walls of the anti-deflection sleeve 5 are fixedly connected to the two sliding sleeves 42 by connecting rods, so that the two sliding sleeves 42 are used to form a limit for the anti-deflection sleeve 5, and then the drill rod 31 is guided and limited by the anti-deflection sleeve 5, so that the drill rod 31 will not deviate during the drilling process. At the same time, since the positions of the abutment 43 and the anti-deflection sleeve 5 remain unchanged, the flatness of the wall will not be affected, and only the drill rod 31 and the sampling drill bit 32 are used for drilling and sampling.

[0029] In order to facilitate sampling, a sampling hole is provided on the sampling drill bit 32, and the drill rod 31 is a hollow drill rod. When drilling and sampling, the powder on the wall enters the drill rod 31 through the sampling hole on the drill bit 32 for temporary storage, and the sample is poured out after the sampling is completed.

[0030] Specifically, as an optional implementation of the locking structure, the locking structure in this embodiment includes a first motor 61, a first shaft 62, a gear 63 and a rack 64; the first motor 61 is fixed to the top of the lateral side wall of the mounting base 1, and the first motor 61 is a self-locking motor; the first shaft 62 is vertically arranged, and the lower end of the first shaft 62 is connected to the output shaft of the first motor 61; the gear 63 is fixed on the upper end of the first shaft 62; the rack 64 is horizontally fixed on the side wall of the sliding sleeve 42 facing away from the anti-bias sleeve 5, and the rack 64 is meshed with the gear 63.

[0031] When the position of the sliding sleeve 42 is adjusted and locked through the locking structure, the first shaft 62 and the gear 63 are driven to rotate by the first motor 61, and the rotation of the gear 63 drives the rack 64 and the sliding sleeve 42 to move horizontally, so as to adjust the position of the sliding sleeve 42. When the abutting portion 43 abuts against the wall, the first motor 61 is controlled to stop rotating, and the self-locking function of the first motor 61 is used to keep the rotation angle of the gear 63 fixed, thereby realizing the locking function of the sliding sleeve 42.

[0032] Specifically, the abutment portion 43 is a conical abutment seat, and the small diameter end of the conical abutment seat is connected to the other end of the sliding sleeve 42. Such an arrangement allows the large diameter end of the abutment portion 43 to abut against the wall as an abutment surface, thereby increasing the contact area and improving the stability performance.

[0033] Further, such as Figure 4 and Figure 5 As shown, in order to achieve abutment and fitting against a wall with uneven changes, an elastic connection component is provided between the conical abutment seat and the sliding sleeve 42, and the elastic connection component includes a hinge seat 71, a swing rod 73 and two return springs 74; the hinge seat 71 is arranged at the other end of the sliding sleeve 42, and a hinge shaft 72 is provided inside the hinge seat 71; one end of the swing rod 73 is hinged to the hinge shaft 72, and the other end of the swing rod 73 is fixed to the small diameter end of the conical abutment seat; the two return springs 74 are symmetrically arranged on both sides of the swing rod 73, and an angle α is formed between the return spring 74 and the swing rod 73, and the angle range of the angle α is 25° to 40°, and the two ends of the return spring 74 are respectively connected to the swing rod 73 and the hinge seat 71.

[0034] In this embodiment, through the cooperation of the articulated seat 71, the swing rod 73 and the two return springs 74, when the surface of the articulated seat 71 contacts the uneven wall surface, the elastic force of the two return springs 74 is utilized to make the articulated seat 71 itself rotate according to the shape of the wall surface and elastically fit the wall surface.

[0035] Specifically, as a preferred embodiment of the angle α, the angle α in this embodiment is 30°, so that the two return springs 74 can ensure a more stable resistance force under normal circumstances.

[0036] In another embodiment of the present invention, the outer surface of the drill rod 31 is provided with an external thread, the inner wall of the anti-deflection sleeve 5 is provided with an internal thread, the anti-deflection sleeve 5 and the drill rod 31 are threadedly connected, and the drilling rig 2 includes a second motor 81, a second shaft 82, a first sliding gear 83 and a second sliding gear 84; the body of the second motor 81 is fixed to the longitudinal side wall of the mounting seat 1; the second shaft 82 is horizontally arranged directly below the anti-deflection sleeve 5, one end of the second shaft 82 is connected to the output shaft of the second motor 81, and the other end of the second shaft 82 is connected to a bearing seat; the first sliding gear 83 is fixed on the second shaft 82; the second sliding gear 84 is fixed on the drill rod 31, and the second sliding gear 84 is meshed with the first sliding gear 83.

[0037] In this embodiment, when driving the drill rod 31 and the sampling drill bit 32 to drill and sample, the first sliding gear 83 is driven to rotate by the second motor 81, and the rotation of the first sliding gear 83 drives the second sliding gear 84 to rotate, and the drill rod 31 is driven to rotate by the second sliding gear 84. Since the drill rod 31 is threadedly connected to the anti-deviation sleeve 5, and the two sides of the anti-deviation sleeve 5 are limited by the locking structure and cannot rotate by themselves, as the drill rod 31 rotates, the internal thread on the anti-deviation sleeve 5 will squeeze the external thread of the drill rod 31, so that the drill rod 31 performs a drilling process of moving and rotating relative to the anti-deviation sleeve 5. The existence of the first sliding gear 83 enables the second sliding gear 84 connected to the drill rod 31 to maintain the process of rotating and moving, and will not affect the drilling process of the drill rod 31.

[0038] Further, such as Figure 3 As shown, in order to limit the sliding position of the second sliding gear 84 and prevent it from separating from the first sliding gear 83 , annular limiting baffles 831 are fixed at both ends of the first sliding gear 83 .

[0039] In another embodiment of the present invention, Figure 6 As shown, in order to facilitate the pouring of samples for temporary storage inside the drill rod 31, a base 9 is provided below the mounting seat 1, an inclination adjustment assembly 91 is provided between the base 9 and the mounting seat 1, and a slot is provided on the top of the base 9 close to the sampling drill bit 32, and the bottom of the receiving barrel 92 is inserted into the slot.

[0040] Among them, the inclination adjustment component 91 includes two hydraulic cylinders, the cylinder bodies of the two hydraulic cylinders are fixed to the top of the base 9, and the piston rod ends of the two hydraulic cylinders are hinged to the bottom of the mounting seat 1 through a hinge seat. After the drilling sampling is completed, the drill rod 31 is withdrawn from the borehole, and then the height of the two hydraulic cylinders is adjusted to make the mounting seat 1 itself tilt, thereby driving the drill rod 31 and the sampling drill bit 32 to tilt, and the drilled concrete sample is poured into the receiving barrel 92, and then the receiving barrel 92 is taken out and transferred to the laboratory for sample analysis. This facilitates the process of removing the sample from the drill rod 31 and the sampling drill bit 32 after the sampling is completed.

[0041] The above disclosures are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A sampling device suitable for construction engineering quality inspection, comprising a mounting seat (1) and a drilling anti-deviation mechanism arranged on the mounting seat (1), characterized in that: The drilling anti-deviation mechanism comprises: Two groups of guide components are symmetrically arranged on both sides of the mounting seat (1), the guide components comprising a guide column (41), a sliding sleeve (42), an abutment portion (43) and a locking structure, the guide column (41) is arranged horizontally, the mounting seat (1) is L-shaped, one end of the guide column (41) is fixed to the longitudinal side wall of the mounting seat (1), one end of the sliding sleeve (42) is slidably connected to the guide column (41), the other end of the sliding sleeve (42) is fixed to the abutment portion (43), and the locking structure is arranged on the sliding sleeve (42) and is used to lock the sliding position of the sliding sleeve (42); The side walls of the anti-deflection sleeve (5) are fixedly connected to the two sliding sleeves (42) via connecting rods. The interior of the anti-deflection sleeve (5) is used to pass the drill rod (31) to achieve positioning and guiding of the drill rod (31).

2. The sampling device suitable for construction engineering quality inspection according to claim 1 is characterized in that: The locking structure comprises: A first motor (61) is fixed on the top of the lateral side wall of the mounting seat (1); A first shaft (62) is vertically arranged, and the lower end of the first shaft (62) is connected to the output shaft of the first motor (61); A gear (63) is sleeved and fixed on the upper end of the first shaft (62); A rack (64) is horizontally fixed on the side wall of the sliding sleeve (42) facing away from the anti-deflection sleeve (5), and the rack (64) is meshed with the gear (63).

3. The sampling device suitable for construction engineering quality inspection according to claim 2 is characterized in that: The abutment portion (43) is a conical abutment seat, and the small-diameter end of the conical abutment seat is connected to the other end of the sliding sleeve (42).

4. The sampling device suitable for construction engineering quality inspection according to claim 3 is characterized in that: An elastic connection component is provided between the conical abutment seat and the sliding sleeve (42), and the elastic connection component comprises: An articulated seat (71) is arranged at the other end of the sliding sleeve (42), and an articulated shaft (72) is arranged inside the articulated seat (71); A swing rod (73), one end of which is hinged to the hinge shaft (72), and the other end of which is fixed to the small diameter end of the conical abutment seat; Two return springs (74) are symmetrically arranged on both sides of the swing rod (73), and an angle α is formed between the return spring (74) and the swing rod (73). The angle α has an angle range of 25° to 40°. The two ends of the return spring (74) are respectively connected to the swing rod (73) and the hinge seat (71).

5. The sampling device suitable for construction engineering quality inspection according to claim 4 is characterized in that: The degree of the angle α is 30°.

6. The sampling device suitable for construction engineering quality inspection according to claim 1 is characterized in that: The outer surface of the drill rod (31) is provided with an external thread, the inner wall of the anti-deflection sleeve (5) is provided with an internal thread, the anti-deflection sleeve (5) and the drill rod (31) are threadedly connected, and the drilling rig (2) comprises: A second motor (81), the body of which is fixed to the longitudinal side wall of the mounting seat (1); A second shaft (82) is horizontally arranged directly below the anti-deflection sleeve (5), one end of the second shaft (82) is connected to the output shaft of the second motor (81), and the other end of the second shaft (82) is connected to a bearing seat; A first sliding gear (83) is sleeved and fixed on the second shaft (82); The second sliding gear (84) is sleeved and fixed on the drill rod (31), and the second sliding gear (84) is meshed with the first sliding gear (83).

7. The sampling device for construction engineering quality inspection according to claim 6 is characterized in that: Annular limiting baffles (831) are fixed at both ends of the first sliding gear (83).

8. The sampling device suitable for construction engineering quality inspection according to claim 1 is characterized in that: A base (9) is provided below the mounting seat (1), an inclination adjustment assembly (91) is provided between the base (9) and the mounting seat (1), and a receiving bucket (92) is provided on the top of the base (9) near the sampling drill bit (32).

Images