Pile head depth measuring device

Abstract

The invention provides a pile head depth measuring device, which comprises a drill rod ruler, and is characterized in that the drill rod ruler is inserted into a supporting unit, slides along the vertical direction of the supporting unit, is connected with an impact assembly for driving the drill rod ruler to move downwards, and is provided with a depth measuring assembly. The drill rod ruler is inserted into the supporting unit, the drill rod ruler is controlled by the supporting unit to be kept in a vertical state all the time, and the perpendicularity of the drill rod penetrating into the soil is improved; the sight line and the scale can be kept horizontal without bending down during reading, and the reading error is reduced; meanwhile, the impact ring is detachable, the weight of the impact ring can be increased or reduced according to geological conditions, and the soil penetrating efficiency of the drill ruler is further improved; the folding function is achieved, the size is small after folding, and turnover, storage and carrying are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of pile head depth measurement, in particular to a pile head depth measurement device. Background Art

[0002] After the construction of the engineering pile is completed, the pile body and the pile top are completely buried in the foundation soil. Sometimes it is necessary to find out the depth of the pile top from the ground. The existing technology mostly uses a steel chisel to directly insert into the soil to detect the depth. For example, a Chinese utility model patent with authorization announcement number CN215165897U discloses a bored pile casting height detection device, which includes a detection rod with a length scale on the detection rod. A probe is installed at the lower end of the detection rod. A screw is provided at the upper end of the probe and is screwed to the lower end of the detection rod through the screw. The lower end of the probe is a pointed structure, and a sampling box is welded on one side of the probe. The sampling box is a conical structure with the cone tip facing downward and the upper end being open.

[0003] The above prior art has the following disadvantages: 1. It is difficult to ensure that the drill ruler is inserted vertically into the soil, and the measurement error is large. If there is a slight tilt, the drill ruler will deviate from the insertion trajectory, which may cause the drill ruler to fail to reach the top of the pile; 2. The measurer needs to bend down, which makes the measurement troublesome and results in large reading errors; 3. It is more difficult to insert the drill bit into harder formations.

[0004] Therefore, how to effectively solve the above shortcomings is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a pile head depth measuring device, which solves the problems that it is difficult to ensure that the drill ruler is inserted vertically, the measurement of the drill ruler is troublesome, the error is large, and it is time-consuming and labor-intensive.

[0006] The technical solution of this application is: A pile head depth measuring device includes a drill ruler, characterized in that: the drill ruler is inserted into a support unit, the drill ruler slides along the vertical direction of the support unit, the drill ruler is connected to an impact assembly that drives the drill ruler to move downward, and a depth measuring assembly is arranged on the drill ruler. The present invention inserts the drill ruler into the support unit, and controls the drill ruler to keep it in a vertical state through the support unit, thereby improving the verticality of the detection steel drill entering the soil.

[0007] Furthermore, the impact assembly includes a force transmission support provided with a threaded hole, the two ends of the threaded hole are respectively threadedly connected with the drill ruler and the slide rod, the outer periphery of the slide rod is slidably matched with an impact ring, and the slide rod is arranged above the drill ruler. The impact assembly in the present invention improves the striking effect and efficiency through the cooperation between the slide rod, the force transmission support, the impact ring, and the drill ruler, saving time and labor. At the same time, the impact ring is detachable, and the weight of the impact ring can be increased or reduced according to the geological conditions, further improving the efficiency of the drill ruler entering the soil.

[0008] Furthermore, an anti-drop cap is detachably connected to the top of the sliding rod.

[0009] Furthermore, the impact ring is provided with a through hole 1, and the diameter of the through hole 1 is larger than the diameter of the sliding rod.

[0010] Furthermore, the support unit includes an upper connection plate and a lower connection plate, each of which is provided with a second through hole. The drill ruler is plugged into the second through hole in turn, and a folding bracket is hinged between the upper connection plate and the lower connection plate. The upper connection plate also serves as a reading pointer of the scale, and the height is fixed, so that real-time reading is realized. When reading, the sight line can be kept level with the scale without bending over, thereby reducing the reading error.

[0011] Furthermore, the folding brackets are arranged in at least three groups, and a triangle is formed between the folding brackets, which has stability.

[0012] Furthermore, the folding bracket includes a first oblique support rod hinged to the upper connecting plate, the other end of the first oblique support rod is hinged to the horizontal support rod, the other end of the horizontal support rod is hinged to the lower connecting plate, a second oblique support rod is arranged between the horizontal support rod and the first oblique support rod, and the second oblique support rod includes hinged support rod 1 and support rod 2. The support unit in the present invention is foldable, and the upper connecting plate, the lower connecting plate, the first oblique support rod, the horizontal support rod, and the second oblique support rod are linked to each other to realize the folding function. After folding, the volume is small, which is convenient for turnover, storage, and carrying.

[0013] Furthermore, the support rod 1 is hinged at the midpoint of the first oblique support rod.

[0014] Furthermore, the depth measurement assembly includes a scale arranged on the sliding rod, and the 0 scale mark of the scale is flush with the upper surface of the upper connecting plate.

[0015] Furthermore, a pointed portion is provided at the bottom of the drill ruler to facilitate insertion into the soil and guidance.

[0016] The specific beneficial effects of the present invention include: 1. The present invention inserts the drill ruler into the support unit, and controls the drill ruler to keep it in a vertical state through the support unit, thereby improving the verticality of the detection drill ruler entering the soil; 2. The upper connecting plate in the present invention also serves as the reading pointer of the scale, and the height is fixed, so that real-time reading is realized. When reading, the sight line can be kept level with the scale without bending over, thereby reducing the reading error; 3. The impact assembly of the present invention improves the striking effect and efficiency through the cooperation between the slide rod, the force transmission support, the impact ring and the drill ruler, saving time and effort. At the same time, the impact ring is detachable, and the weight of the impact ring can be increased or decreased according to the geological conditions, further improving the penetration efficiency of the drill ruler; 4. The support unit in the present invention is foldable, and the upper connecting plate, the lower connecting plate, the first oblique support rod, the horizontal support rod, and the second oblique support rod are interconnected to achieve a folding function. After folding, the volume is small, which is convenient for turnover, storage, and carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0018] Figure 1 The present invention is used in a state diagram Figure 1 ; Figure 2 It is a side view of the present invention in use; Figure 3 It is a schematic diagram of the folded state of the support unit; Figure 4 for Figure 2 Enlarged view of point A in the middle; Figure 5 The present invention is used in a state diagram Figure 2 .

[0019] Description of Figure Numbers: 1. Drill ruler; 2. Support unit; 3. Impact assembly; 21. upper connection plate; 22. lower connection plate; 23. a first oblique support rod; 24. Horizontal support rod; 25. Second oblique support rod; 31. force transmission support; 32. slide rod; 33. impact ring; 251. Support rod one; 252. Support rod two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0022] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0024] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0025] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0026] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the corresponding technologies, methods, and equipment should be considered part of the specification.

[0027] A pile head depth measuring device, such as Figure 1 , Figure 2 As shown, it includes a drill ruler 1, the drill ruler 1 is inserted into a support unit 2, the drill ruler 1 slides in the vertical direction of the support unit 2, the drill ruler 1 is connected to an impact assembly 3 that drives the drill ruler 1 to move downward, and a depth measurement assembly is provided on the drill ruler 1. The present invention inserts the drill ruler into the support unit 2, and controls the drill ruler to always remain in a vertical state through the support unit 2, thereby improving the verticality of the detection drill ruler 1 entering the soil.

[0028] On the basis of the above embodiment, as a preferred embodiment, the impact assembly 3 includes a force transmission support 31 provided with a threaded hole, and the two ends of the threaded hole are respectively threadedly connected to the drill ruler 1 and a slide rod 32, and the outer periphery of the slide rod 32 is slidably matched with an impact ring 33, and the slide rod 32 is arranged above the drill ruler 1.

[0029] Specifically, the impact ring 33 slides on the slide bar 32, and the slide bar 32 is used to ensure that the impact ring 33 accurately hits the force transmission support 31 at the top of the drill ruler 1 when striking downward, thereby improving the striking efficiency and facilitating the drill ruler 1 to move downward, insert into the soil, and continuously approach the pile top.

[0030] Specifically, the force transmission support 31 is located at the top of the drill ruler 1, and the top of the force transmission support 31 is connected to the slide bar 32, and the impact force of the impact hammer 2 can be transmitted to the drill ruler 1. The force transmission support 31 has a threaded hole at the center, and the bottom of the slide bar 32 and the top of the drill ruler 1 are provided with external threads for easy installation and disassembly.

[0031] On the basis of the above embodiment, as a preferred embodiment, the top of the sliding rod 32 is detachably connected with an anti-drop cap, the top of the sliding rod 32 is provided with an external thread, the anti-drop cap is provided with an internal thread, and the anti-drop cap is threadedly connected to the top of the sliding rod 32 to prevent the sliding rod 32 from detaching from the support unit 2 during work.

[0032] On the basis of the above-mentioned embodiment, as a preferred embodiment, the impact ring 33 is provided with a through hole 1, the diameter of which is larger than the diameter of the slide rod 32 , so as to facilitate the impact ring 33 to slide along the slide rod 32 .

[0033] On the basis of the above embodiment, as a preferred embodiment, the support unit 2 includes an upper connecting plate 21 and a lower connecting plate 22 respectively provided with two through holes, and the drill ruler 1 is plugged into the two through holes in turn, and a folding bracket is hinged between the upper connecting plate 21 and the lower connecting plate 22.

[0034] Based on the above implementation, as a preferred implementation, the folding brackets are provided in at least three groups.

[0035] Specifically, Figure 1 As shown, the folding brackets are arranged in three groups, evenly distributed with the drill ruler 1 as the rotation axis, and the angle between each group is 120°. The folding brackets form a triangle, which is stable.

[0036] On the basis of the above embodiment, as a preferred embodiment, the folding bracket includes a first oblique support rod 23 hinged to the upper connecting plate 21, the other end of the first oblique support rod 23 is hinged to the horizontal support rod 24, the other end of the horizontal support rod 24 is hinged to the lower connecting plate 22, and a second oblique support rod 25 is arranged between the horizontal support rod 24 and the first oblique support rod 23, and the second oblique support rod includes a hinged support rod 1 251 and a support rod 252, such as Figure 3 shown.

[0037] Specifically, three ear plates with holes are arranged on the sides of the upper connecting plate 21 and the lower connecting plate 22, and through holes three are arranged at both ends of the first oblique support rod 23, the horizontal support rod 24 and the second oblique support rod 25. The through hole three of the first oblique support rod 23 is hinged to the ear plate with holes of the upper connecting plate 21 through a bolt group one, the through hole three of the horizontal support rod 24 and the through hole three of the second support rod 252 are aligned with the ear plate with holes of the lower connecting plate 22 and are hinged through a bolt group two, the first oblique support rod 23 is hinged to the through hole three of the horizontal support rod 24 through a bolt group three, the end of the support rod one 251 and the support rod two 252 are hinged through a bolt group four, and 251 is hinged to the middle part of the first oblique support rod 23 through a bolt group five.

[0038] Specifically, the length of the second oblique support rod 25 cooperates with the horizontal support rod 24 to ensure that when the second oblique support rod 25 is straightened, the horizontal support rod 24 is in a horizontal state.

[0039] On the basis of the above-mentioned embodiment, as a preferred embodiment, the support rod 1 251 is hinged at the midpoint of the first oblique support rod 23 .

[0040] Based on the above implementation, as a preferred implementation, Figure 4 As shown, the depth measuring assembly includes a scale arranged on the slide bar 32, the 0 scale of the scale is flush with the upper surface of the upper connecting plate 21, and is used for real-time measurement of the insertion depth of the drill ruler 1. The 0 scale on the scale is flush with the upper surface of the upper connecting plate 21, and the minimum scale value of the slide bar 32 is 1mm. The upper connecting plate 21 also acts as a reading pointer. The scale reading indicated by the upper surface of the upper connecting plate 21 is the insertion depth of the drill ruler 1.

[0041] Specifically, the length of the drill ruler 1 is adapted to the height of the upper connecting plate 21 to ensure that after the folding bracket is opened, the 0 mark of the slide bar 32 is flush with the upper surface of the upper connecting plate 21 .

[0042] Based on the above embodiment, as a preferred embodiment, the bottom of the drill ruler 1 is provided with a tip, and the drill ruler 1 is used to detect the pile head, and the tip is convenient for inserting into the soil and guiding. Figure 5 As shown, a certain distance is maintained between the impact ring 33 and the upper connecting plate 21, so that the impact ring 33 can be smashed downward by the inertia and gravity. As the impact ring 33 smashes downward on the force transmission support 31, the force transmission support 31 drives the drill ruler 1 to fall vertically until the tip hits the top of the pile. The reading at this time is the distance from the top of the pile to the ground.

[0043] The upper connecting plate 21 in the present invention also serves as a reading pointer of the scale, and the height is fixed, so that real-time reading is realized. When reading, the line of sight can be kept level with the scale without bending over, thereby reducing the reading error. The impact assembly 3 in the present invention improves the striking effect and efficiency through the cooperation among the slide rod 32, the force transmission support 31, the impact ring 33, and the drill ruler 1, saving time and effort. At the same time, the impact ring is detachable, and the weight of the impact ring 33 can be increased or reduced according to the geological conditions, thereby further improving the efficiency of the drill ruler 1 in entering the soil. The support unit 2 in the present invention is foldable, and the upper connecting plate 21, the lower connecting plate 22, the first oblique support rod 23, the horizontal support rod 24, and the second oblique support rod 25 are interconnected to realize the folding function. After folding, the volume is small, which is convenient for turnover, storage, and carrying.

[0044] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0045] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pile head depth measuring device, comprising a drill ruler (1), characterized in that: The drill ruler (1) is inserted into the support unit (2), the drill ruler (1) slides in the vertical direction of the support unit (2), the drill ruler (1) is connected to an impact assembly (3) for driving the drill ruler (1) to move downward, and a depth measuring assembly is provided on the drill ruler (1).

2. The pile head depth measuring device according to claim 1, characterized in that: The impact assembly (3) comprises a force transmission support (31) provided with a threaded hole, the two ends of the threaded hole being threadedly connected to the drill ruler (1) and a slide rod (32), the outer periphery of the slide rod (32) being slidably fitted with an impact ring (33), and the slide rod (32) being arranged above the drill ruler (1).

3. The pile head depth measuring device according to claim 2, characterized in that: The top of the sliding rod (32) is detachably connected with an anti-drop cap.

4. The pile head depth measuring device according to claim 2 or 3, characterized in that: The impact ring (33) is provided with a through hole 1, and the diameter of the through hole 1 is greater than the diameter of the sliding rod (32).

5. The pile head depth measuring device according to any one of claims 1 to 3, characterized in that: The support unit (2) comprises an upper connection plate (21) and a lower connection plate (22) each provided with a second through hole, the brazing ruler (1) being plugged into the second through hole in sequence, and a folding bracket being hinged between the upper connection plate (21) and the lower connection plate (22).

6. The pile head depth measuring device according to claim 5, characterized in that: The folding brackets are arranged in at least three groups.

7. The pile head depth measuring device according to claim 5, characterized in that: The folding bracket comprises a first oblique support rod (23) hinged to the upper connecting plate (21), the other end of the first oblique support rod (23) being hinged to a horizontal support rod (24), the other end of the horizontal support rod (24) being hinged to the lower connecting plate (22), a second oblique support rod (25) being arranged between the horizontal support rod (24) and the first oblique support rod (23), the second oblique support rod comprising a hinged support rod 1 (251) and a support rod 2 (252).

8. The pile head depth measuring device according to claim 7, characterized in that: The support rod 1 (251) is hinged at the midpoint of the first oblique support rod (23).

9. The pile head depth measuring device according to any one of claims 2-3, 6-8, characterized in that: The depth measurement assembly comprises a scale arranged on the sliding rod (32), wherein the 0 mark of the scale is flush with the upper surface of the upper connecting plate (21).

10. The pile head depth measuring device according to any one of claims 1-3, 6-8, characterized in that: The bottom of the drill ruler (1) is provided with a pointed portion.

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