A type of calibration ground stake for civil engineering construction

Abstract

This utility model relates to the field of civil engineering technology and discloses a calibration ground stake for civil engineering construction, including a stake body. A circular groove is formed at the bottom of the stake body, and a sliding hole is formed on the inner side wall of the circular groove. Two limiting circular grooves are formed on the inner side wall of the sliding hole. A telescopic component is disposed inside the circular groove. A groove is formed at the top of the stake body, and an extension component is disposed inside the groove. The telescopic component includes a pin slidably connected to the inner side wall of the circular groove. This calibration ground stake for civil engineering construction allows the pin to be retracted into the stake body by pushing the sliding rod, preventing accidental scratches, punctures, or other injuries caused by the pin being exposed when not in use. It also effectively prevents the pin from being damaged by external impacts from stones, sand, or corrosive substances such as rainwater, reducing wear and tear and significantly extending its actual service life.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a calibration grounding rod for civil engineering construction. Background Technology

[0002] In the field of civil engineering, from the construction of cross-sea bridges that span natural barriers to the construction of super high-rise buildings in dense cities, and water conservancy projects that are crucial to people's livelihoods, construction surveying and positioning have always been the cornerstone and core link of engineering construction. As an indispensable auxiliary tool in construction surveying, the calibration ground stake undertakes key tasks such as marking building axes, road edges, and elevation benchmarks. At the same time, it provides positioning references for precision measuring instruments such as total stations and GPS positioning instruments. The performance of the ground stake directly determines the construction accuracy and the overall quality of the project.

[0003] However, existing calibration ground stakes used in civil engineering construction have the following disadvantages:

[0004] (1) The exposed pins of traditional grounding rods can easily cause injury to construction workers or people in the surrounding area due to accidental contact during handling and storage.

[0005] (2) Traditional ground stakes have a fixed height, which makes it difficult to adapt to the needs of construction scenarios such as differences in ground flatness and changes in the height of the measurement baseline.

[0006] Therefore, this utility model provides a calibration grounding rod for civil engineering construction. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The problem solved by this utility model is to provide a highly practical calibration ground stake for civil engineering construction, which solves the problems mentioned in the background art, such as the risk of injury to construction workers or people in the surrounding area due to accidental contact during handling and storage, and the difficulty in adapting to construction scenarios such as differences in ground flatness and changes in the height of the measurement baseline.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model is implemented through the following technical solution: a calibration ground drill for civil engineering construction, comprising a drill body, a circular groove at the bottom of the drill body, a sliding hole on the inner side wall of the circular groove, two limiting circular grooves on the inner side wall of the sliding hole, a telescopic component inside the circular groove, and a groove at the top of the drill body, wherein an extension component is provided inside the groove.

[0011] The telescopic assembly includes a pin slidably connected to the inner wall of a circular groove. A groove is formed on the surface of the pin. A sliding rod is slidably connected to the inner wall of the sliding hole. A limiting ring is fixedly connected to the surface of the sliding rod. The surface of the limiting ring is slidably connected to the inside of the limiting circular groove. The surface of the sliding rod is slidably connected to the inside of the groove. A damper is connected to the inner wall of the groove and one end of the sliding rod. A spring is connected to the inner wall of the groove and one end of the sliding rod.

[0012] The extension assembly includes a worm gear rotatably connected to the inner wall of the groove, a worm wheel meshing on the surface of the worm gear, a threaded rod fixedly passing through the center of the worm wheel, and a telescopic rod sleeved on the surface of the threaded rod.

[0013] Optionally, one end of the worm extends to the outside of the drill bit body, and a throttle is fixedly connected to one end of the worm. The throttle fixedly connected to one end of the worm significantly improves the ease of operation of the extension assembly. Construction personnel can easily rotate the worm by holding the throttle, thereby driving the worm wheel and threaded rod to work and realize the raising and lowering of the telescopic rod.

[0014] Optionally, a push rod is fixedly connected to the other end of the sliding rod. The push rod is circular in shape, and the circular push rod fixed to the other end of the sliding rod provides a point of force for the operation of the telescopic assembly.

[0015] Optionally, the surfaces of the drill bit and the telescopic rod are respectively provided with scales, which are arranged linearly. The linearly arranged scales on the surfaces of the drill bit and the telescopic rod provide a quantitative basis for construction measurement.

[0016] Optionally, a round cap is fixedly connected to one end of the telescopic rod. The round cap is circular in shape. The round cap at one end of the telescopic rod serves a dual purpose of protection and identification. On the one hand, the round cap can prevent the end of the telescopic rod from being damaged by collision and wear, thus extending its service life. On the other hand, the conspicuous circular appearance of the round cap makes it easy for construction personnel to quickly identify the location of the ground stake on the construction site.

[0017] Optionally, a limiting groove is formed on the inner sidewall of the groove, and a limiting block is slidably connected to the inner sidewall of the limiting groove. One side of the limiting block is fixedly connected to the surface of the telescopic rod. The limiting groove on the inner sidewall of the groove and the limiting block fixed on the surface of the telescopic rod cooperate with each other to enhance the stability of the telescopic rod during the lifting and lowering process.

[0018] (III) Beneficial Effects

[0019] This utility model provides a calibration ground stake for civil engineering construction, which has the following beneficial effects:

[0020] 1. The calibration ground stake used in this civil engineering construction can retract the pin into the stake body by pushing the sliding rod, which avoids the pin being exposed when not in use and causing accidental scratches, punctures or other injuries to personnel. At the same time, it can also effectively prevent the pin from being hit by external stones, worn by sand and soil or corrosive substances such as rainwater, thereby reducing wear and tear from multiple aspects and significantly extending its actual service life.

[0021] 2. This calibration ground stake for civil engineering construction uses a worm gear to rotate, which drives the worm wheel to rotate, thereby causing the threaded rod to rotate and enabling the telescopic rod to move up and down. This allows for precise adjustment of the overall height of the ground stake according to construction needs. When calibrating the ground, if it is necessary to adjust the top of the ground stake to a specific height to match other measuring equipment or construction baselines, this can be easily achieved through the extension assembly. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the push rod structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the pin structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the telescopic rod structure of this utility model.

[0026] In the diagram: 1. Drill body; 2. Telescopic assembly; 201. Pin; 202. Sliding rod; 203. Limiting ring; 204. Damper; 205. Spring; 3. Extension assembly; 301. Worm gear; 302. Worm wheel; 303. Threaded rod; 304. Telescopic rod; 4. Throttle; 5. Push rod; 6. Scale; 7. Round cap. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1 to 4 This utility model provides a technical solution: a calibration ground stake for civil engineering construction, including a stake body 1, a circular groove is provided at the bottom of the stake body 1, a sliding hole is provided on the inner side wall of the circular groove, two limiting circular grooves are provided on the inner side wall of the sliding hole, a telescopic component 2 is provided inside the circular groove, and a groove is provided at the top of the stake body 1, an extension component 3 is provided inside the groove.

[0029] The telescopic assembly 2 includes a pin 201 slidably connected to the inner wall of the circular groove. As the tip of the ground drill, it is responsible for penetrating the soil or base material and providing a stable anchoring force. The telescopic design allows it to retract into the drill body 1 during transportation and storage to avoid damage and accidental injury. The surface of the pin 201 is provided with a groove, and a sliding rod 202 is slidably connected to the inner wall of the groove. A limit ring 203 is fixedly connected to the surface of the sliding rod 202. Under the synergistic action of the spring 205 and the damper 204, it forms a mechanical lock with the limit circular groove to ensure the stability of the pin 201 in the working state. The surface of the limit ring 203 is slidably connected to the inside of the limit circular groove, and the surface of the sliding rod 202 is slidably connected to the inside of the groove. The inner wall of the groove and one end of the sliding rod 202 are connected to the damper 204, and the inner wall of the groove and one end of the sliding rod 202 are connected to the spring 205.

[0030] The extension assembly 3 includes a worm 301 rotatably connected to the inner wall of the groove, which serves as a power input component to transmit rotational motion to the worm wheel 302. The worm wheel 302 meshes with the surface of the worm 301. A threaded rod 303 is fixedly inserted through the center of the worm wheel 302. A telescopic rod 304 is sleeved on the surface of the threaded rod 303, which serves as an actuator for height adjustment, changing the overall height of the grounding rod by extending or retracting it.

[0031] One end of the worm 301 extends to the outside of the drill bit 1. A handle 4 is fixedly connected to one end of the worm 301. The handle 4 fixedly connected to one end of the worm 301 significantly improves the ease of operation of the extension assembly 3. Construction personnel can easily rotate the worm 301 by holding the handle 4, which drives the worm wheel 302 and the threaded rod 303 to work, thereby realizing the lifting and lowering of the telescopic rod 304.

[0032] The other end of the sliding rod 202 is fixedly connected to a push rod 5, which is circular in shape. The circular push rod 5 fixed at the other end of the sliding rod 202 provides a force point for the operation of the telescopic component 2.

[0033] The surfaces of the drill bit 1 and the telescopic rod 304 are respectively provided with scales 6, which are arranged linearly. The linear arrangement of scales 6 on the surfaces of the drill bit 1 and the telescopic rod 304 provides a quantitative basis for construction measurement.

[0034] One end of the telescopic rod 304 is fixedly connected to a round cap 7. The round cap 7 is circular in shape. The round cap 7 at one end of the telescopic rod 304 serves a dual purpose of protection and identification. On the one hand, the round cap 7 can prevent the end of the telescopic rod 304 from being damaged by collision and wear, thus extending its service life. On the other hand, the conspicuous circular appearance of the round cap 7 makes it easy for construction personnel to quickly identify the location of the ground stake on the construction site.

[0035] A limiting groove is provided on the inner side wall of the groove, and a limiting block is slidably connected to the inner side wall of the limiting groove. One side of the limiting block is fixedly connected to the surface of the telescopic rod 304. The limiting groove on the inner side wall of the groove and the limiting block fixed on the surface of the telescopic rod 304 cooperate with each other to enhance the stability of the telescopic rod 304 during the lifting process.

[0036] In this invention, the working steps of the device are as follows:

[0037] First step: Spring 205 pushes sliding rod 202, causing limiting ring 203 to engage with the lower limiting groove. At this time, pin 201 is in the extended state and can be inserted into the ground for calibration. External force pushes sliding rod 202 inward, compressing spring 205 and damper 204, causing limiting ring 203 to disengage from limiting groove and unlock. Continue pushing sliding rod 202 upward, pin 201 slides upward along the groove, and limiting ring 203 moves synchronously within the sliding hole. When pin 201 is fully retracted, limiting ring 203 aligns with limiting groove, spring 205 resets and pushes limiting ring 203 into the groove, achieving storage and locking. Damper 204 provides buffering during extension and retraction, preventing pin 201 from popping out or retracting quickly, enhancing operational stability.

[0038] The second step is to rotate the worm 301, which drives the worm wheel 302 to rotate through meshing transmission; the worm wheel 302 drives the threaded rod 303 to rotate, causing the telescopic rod 304 to move linearly along the thread direction; when the lead angle of the worm gear transmission is less than the equivalent friction angle, the system has a reverse self-locking capability, which can prevent the telescopic rod 304 from retracting on its own due to external force.

[0039] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibrated earth auger for use in civil engineering construction comprising an auger body (1) characterised in that: The bottom of the drill bit (1) is provided with a circular groove, the inner side wall of the circular groove is provided with a sliding hole, the inner side wall of the sliding hole is provided with two limiting circular grooves, the inside of the circular groove is provided with a telescopic component (2), the top of the drill bit (1) is provided with a groove, the inside of the groove is provided with an extension component (3). The telescopic assembly (2) includes a pin (201) slidably connected to the inner wall of the circular groove. The surface of the pin (201) is provided with a sliding groove. The inner wall of the sliding hole is slidably connected to a sliding rod (202). The surface of the sliding rod (202) is fixedly connected to a limiting ring (203). The surface of the limiting ring (203) is slidably connected to the inside of the limiting circular groove. The surface of the sliding rod (202) is slidably connected to the inside of the sliding groove. The inner wall of the sliding groove and one end of the sliding rod (202) are connected to a damper (204). The inner wall of the sliding groove and one end of the sliding rod (202) are connected to a spring (205). The extension assembly (3) includes a worm (301) rotatably connected to the inner wall of the groove. A worm wheel (302) meshes with the surface of the worm (301). A threaded rod (303) is fixedly inserted through the center of the worm wheel (302). A telescopic rod (304) is sleeved on the surface of the threaded rod (303).

2. The calibration ground stake for civil engineering construction according to claim 1, characterized in that: One end of the worm (301) extends to the outside of the drill bit (1), and a throttle (4) is fixedly connected to one end of the worm (301).

3. A calibration ground stake for civil engineering construction according to claim 1, characterized in that: The other end of the sliding rod (202) is fixedly connected to a push rod (5), which is circular in shape.

4. A calibration ground stake for civil engineering construction according to claim 1, characterized in that: The surfaces of the drill bit (1) and the telescopic rod (304) are respectively provided with scales (6), and the scales (6) are arranged linearly.

5. A calibration ground stake for civil engineering construction according to claim 1, characterized in that: One end of the telescopic rod (304) is fixedly connected to a round cap (7), which is circular in shape.

6. A calibration ground stake for civil engineering construction according to claim 1, characterized in that: The inner wall of the groove is provided with a limiting groove, and the inner wall of the limiting groove is slidably connected to a limiting block. One side of the limiting block is fixedly connected to the surface of the telescopic rod (304).

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