Coring bit convenient for on-site sampling
By designing a core drill bit with a groove and a push-off mechanism, the problems of difficult core sampling and easy damage to the core were solved, enabling fast and convenient core extraction and fixed-length sampling, ensuring the integrity of the core and the accuracy of testing.
Patent Information
- Application Number
- CN202520485541.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In existing technologies, core sampling is difficult, has low efficiency, and the core sample is easily damaged, which affects work efficiency, especially when testing high-rise buildings.
A core sampling drill bit was designed to facilitate on-site sampling. It adopts a core drill barrel with a groove and a push-out mechanism, combined with a distance ring and a clamping bolt, to achieve easy ejection of the core and fixed-length sampling, thus avoiding damage to the core.
It enables rapid and convenient removal of the core sample, ensuring the integrity of the core sample, improving testing efficiency and accuracy, and preventing the drill bit from excessively penetrating the insulation board and damaging the wall.
Smart Images
Figure CN223948214U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of building outer wall energy-saving structure field entity inspection technology, specifically related to a core drill bit convenient for field sampling. BACKGROUND
[0002] In the field entity inspection category of building outer wall energy-saving structure, it covers the detection of wall insulation material types, insulation layer thickness and insulation construction method. According to the current national detection standard, when drilling core inspection of outer wall energy-saving structure, the sampling position and quantity need to select the relatively concealed position of representative outer wall, and different floors and orientations are considered.
[0003] Field operation usually uses a handheld core drill machine matched with a hollow drill bit to drill core sampling. However, in the actual detection process, due to the centrifugal force generated during drilling sampling, the drilled core sample of the insulation structure is tightly attached to the inner wall of the hollow drill bit. Moreover, if the core sampling process is not properly operated, the appearance of the core sample is easily damaged, which further increases the detection error of the later dimensional measurement. Especially when the floor is high, if the core sample cannot be taken out in time, it will lead to an increase in the detection workload, which seriously affects the detection work efficiency. Therefore, it has extremely important practical significance to develop a core drill bit that can quickly and conveniently take out the core sample on the engineering detection site without damaging its appearance. UTILITY MODEL CONTENTS
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a core drill bit convenient for field sampling, which solves the problem of large core sampling operation difficulty and low core sampling efficiency after sampling the insulation material in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A core drill bit convenient for field sampling, comprising a core drill cylinder, a sharp part is arranged at the left end of the core drill cylinder, and a distance ring with a locking mechanism is sleeved on the outer surface of the core drill cylinder, a push-away mechanism is slidably installed in the core drill cylinder, a sliding groove is arranged in the front and rear surfaces of the core drill cylinder, the push-away mechanism is slidably connected with the sliding groove, and a core drill connector is fixedly installed at the right end of the core drill cylinder.
[0007] In the above technical scheme, the push-away mechanism comprises a plug plate A and a plug plate B, a connecting rod is fixedly installed between the plug plate A and the plug plate B, the plug plate A, the plug plate B and the connecting rod are all installed in the core drill cylinder, operation blocks are integrally formed on the front and rear surfaces of the plug plate B, and the operation blocks are slidably installed in the corresponding sliding grooves.
[0008] In the above technical scheme, a rubber sleeve is sleeved on the outer surface of the plug plate A, and the outer surface of the rubber sleeve is attached to the inner surface of the core drill cylinder.
[0009] In the technical scheme, the outer surface of the distance ring is circumferentially and equidistantly penetrated by at least two abutting bolts, and the inner side end of the abutting bolt is attached to the outer surface of the core drill cylinder.
[0010] In the technical scheme, the outer surface of the core drill cylinder is transversely and horizontally engraved with distance marks.
[0011] Compared with the prior art, the core drill bit convenient for on-site sampling has the beneficial effects that:
[0012] The utility model discloses a kind of core drill bits convenient for on-site sampling, compared with prior art, beneficial effect is that: the push-off mechanism is slidably arranged in the core drill cylinder with chute, when sampling, push-off mechanism can be used to easily eject and push off from the core drill cylinder with insulation material sample core, it is easy and convenient to operate, it can also ensure that sample core is not easily damaged in the process of taking out, effectively guarantee sample core integrity to facilitate subsequent sample core length detection work;At the same time, by setting distance mark and distance ring with abutting bolt, according to the actual thickness of on-site insulation board material, the position of distance ring is adjusted by referring to distance mark and locked with abutting bolt to realize fixed-length coring, distance ring is attached to insulation board material when indicating that it has penetrated insulation board and not hurt wall, avoid the problem that drill bit penetrates insulation board material excessively and hurts wall. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is front view structural schematic diagram of the utility model.
[0014] Figure 2 It is three-dimensional structural schematic diagram of the utility model.
[0015] Figure 3 It is explosive structural schematic diagram of the utility model.
[0016] Figure 4 It is sectional structure schematic diagram of the utility model.
[0017] Figure 5 It is structural schematic diagram when the utility model cooperates with core drill sampling.
[0018] Figure 6 It is structural schematic diagram when the utility model cooperates with core drill and takes sample core from core drill cylinder.
[0019] Figures 1-6 In the technical scheme, the outer surface of the distance ring is circumferentially and equidistantly penetrated by at least two abutting bolts, and the inner side end of the abutting bolt is attached to the outer surface of the core drill cylinder. DETAILED DESCRIPTION
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-6 This utility model provides a technical solution:
[0022] A core sampling drill bit for easy on-site sampling includes a core drill barrel 1 made of alloy material, a spacer ring 2, a pushing mechanism 3, and a core drill connector 4. The left end of the core drill barrel 1 has a pointed tip 11, which rotates when driven by the core drill, facilitating insertion into the insulation material for sampling. The spacer ring 2 is fitted onto the outer surface of the core drill barrel 1 and can slide to adjust its position. The inner diameter of the spacer ring 2 is the same as the outer diameter of the core drill barrel 1 to ensure stability during sliding. At least two clamping bolts 21 are equidistantly threaded through the outer surface of the spacer ring 2. Tightening the clamping bolts 21 allows for... The inner end of the ring is pressed against the outer surface of the core drill cylinder 1 to fix the position of the spacer ring 2. The fixed spacer ring 2 mainly serves to position the sampling length of the insulation board. The pushing mechanism 3 slides in the inner cavity of the core drill cylinder 1 with a certain degree of damping. Two sliding grooves 12 are opened through the front and rear surfaces of the core drill cylinder 1. The pushing mechanism 3 can be operated to slide in the core drill cylinder 1 through the position of the sliding grooves 12, thereby pushing the insulation material sample core in the core drill cylinder 1 out, which facilitates the core sampling work. The core drill connector 4 is fixedly installed on the right end of the core drill cylinder 1 by welding, mainly for connecting with the core drill.
[0023] Combination Figure 3As shown, the pushing-off mechanism 3 includes a plug plate A31 and a plug plate B32, both of which are metal plates, and a connecting rod 33 is fixedly installed between the plug plate A31 and the plug plate B32 by welding. The plug plate B32 is integrally formed with operation blocks 321 on the front and rear surfaces thereof. The two operation blocks 321 are respectively and slidably arranged in the corresponding sliding grooves 12, and the outer side ends of the operation blocks 321 protrude outside the sliding grooves 12. When the insulation board sample core is taken out of the coring drill cylinder 1, the operator can use the cooperation of the thumb and the index finger to push the pushing-off mechanism 3 in the direction of the insulation board sample core by means of the two operation blocks 321, so as to push the insulation board sample core out of the coring drill cylinder by means of the plug plate A31. The operation of making the insulation board sample core separate from the coring drill cylinder 1 is more convenient and fast, and the insulation board sample core is not easy to be damaged during the coring process, so as to ensure the integrity thereof and be beneficial to the detection accuracy of the size measurement of the sample core in the later period.
[0024] In combination Figure 4 As shown, the outer surface of the plug plate A31 is sleeved with a rubber sleeve 311. After the pushing-off mechanism 3 is integrally inserted into the right end of the coring drill cylinder 1, the outer surface of the rubber sleeve 311 is attached to the inner surface of the coring drill cylinder 1 and generates a certain damping. At this time, when the coring drill cylinder 1 is rotated for sampling under the driving of the coring drill, the pushing-off mechanism 3 can be prevented from being easily moved, so as to affect the sampling operation.
[0025] In combination Figure 1 As shown, distance marks 13 are horizontally engraved on the outer surface of the coring drill cylinder 1. The reading starting end of the distance marks 13 is located at the left end of the sharp portion 11. The reading unit of the distance marks 13 is in centimeter system. The distance marks 13 are used in cooperation with the distance ring 2, and are suitable for the sampling positioning of the insulation board with a thickness of 30 mm to 80 mm. In actual use, the clamping bolt 21 of the distance ring 2 can be loosened. According to the length to be sampled, the left surface of the distance ring 2 is slid to the corresponding position by referring to the distance marks 13, and the clamping bolt 21 is tightened for positioning. During the sampling process, when the left surface of the distance ring 2 is attached to the insulation board material, it indicates that the coring drill cylinder 1 reaches the specified coring length. At this time, the coring drill can be stopped, and the coring drill cylinder 1 together with the sample core can be taken out of the insulation material, so as to separate the sample core from the coring drill cylinder 1.
[0026] Working principle:
[0027] In use, in combination Figure 2 and Figure 5As shown, the right end of the coring drill connector 4 is inserted into the drill bit of the coring drill, and the coring drill connector 4 is clamped and fixed by means of the drill bit, then the coring drill is held in the hand and carried out with the outer wall insulation board material together with the drill bit of the coring machine, then according to the thickness of the insulation board, the distance ring 2 is adjusted to the corresponding position and locked by means of the abutting bolt 21, then the sharp part 11 of the coring drill cylinder 1 is attached to the surface of the insulation board material, and the coring drill is started, the coring drill drives the coring drill cylinder 1 to rotate through the coring drill connector 4, at this time, the coring drill is pushed towards the insulation board material, and the selected coring drill cylinder 1 is drilled into the insulation board material to take the sample, since the length of the sample is set in advance, when the side close to the insulation board material of the distance ring 2 is attached to the insulation board material, it means that the curved drill cylinder 1 has penetrated the insulation board and has not drilled into the wall body, at this time, the sample core of the insulation board material is in the coring drill cylinder 1, and after the coring drill cylinder 1 is away from the insulation board material, the sample core can be pushed away from the coring drill cylinder 1 by means of the pushing away mechanism 3, during the coring process, the operating block 321 is slowly pushed to the left side, and the sample core can be gently pushed out by means of the stop plate A31. Compared with the existing technology which uses a hollow drill bit to sample, the coring machine drill bit of the present application not only can easily take out the sample core of the insulation board from the coring drill cylinder 1, but also can ensure that the sample core is not easily damaged during the taking out process, can effectively ensure the integrity of the sample core, in addition, can also take fixed-length coring according to the actual thickness of the insulation board material on site, and avoid the problem of damaging the wall body during the coring process due to excessive penetration of the drill bit into the insulation board material.
Claims
1. A coring bit for facilitating field sampling, comprising a coring barrel (1), characterised in that, The left end of the coring drill cylinder (1) is provided with a sharp part (11), and the outer surface of the coring drill cylinder (1) is sleeved with a distance ring (2) with a locking mechanism, the coring drill cylinder (1) is slidably installed with a push-off mechanism (3), the front and rear surfaces of the coring drill cylinder (1) are oppositely provided with sliding grooves (12), the push-off mechanism (3) and the sliding grooves (12) are slidably connected, and the right end of the coring drill cylinder (1) is fixedly installed with a coring drill connector (4).
2. A coring bit for facilitating field sampling according to claim 1, wherein, The push-off mechanism (3) comprises a plug plate A (31) and a plug plate B (32), the plug plate A (31) and the plug plate B (32) are fixedly installed with a connecting rod (33) therebetween, the plug plate A (31), the plug plate B (32) and the connecting rod (33) are installed in the coring drill cylinder (1), the front and rear surfaces of the plug plate B (32) are integrally provided with operation blocks (321), and the operation blocks (321) are slidably installed in corresponding sliding grooves (12).
3. A coring bit for facilitating field sampling according to claim 2, wherein, The outer surface of the plug plate A (31) is sleeved with a rubber sleeve (311), and the outer surface of the rubber sleeve (311) is attached to the inner surface of the coring drill cylinder (1).
4. The coring bit for facilitating field sampling of claim 1, wherein, The outer surface of the distance ring (2) is circumferentially and equidistantly penetrated and screw-connected with at least two abutting bolts (21), and the inner side end of the abutting bolt (21) is attached to the outer surface of the coring drill cylinder (1).
5. A coring bit for facilitating field sampling according to claim 4, wherein, The outer surface of the coring drill cylinder (1) is transversely and horizontally engraved with distance marks (13).