Device for improving drilling perpendicularity of ground source heat pump
By combining the mounting bracket and monitoring components, drill rod offset is monitored in real time and an alarm is triggered, solving the problem of difficulty in ensuring borehole verticality and improving both borehole verticality and measurement accuracy.
Patent Information
- Application Number
- CN202520492783.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-20
AI Technical Summary
In existing technologies, due to the complex and diverse geological conditions, the drill rod is easily deflected by lateral forces during drilling, making it difficult to ensure the verticality of the borehole. Furthermore, existing methods cannot adjust the position and attitude of the drilling rig in a timely manner.
A device including a mounting bracket and monitoring components is used to monitor drill rod offset in real time through pressure sensors and a ball bearing system. When offset occurs, an audible and visual alarm is triggered to promptly notify the staff to adjust the drill rod posture. At the same time, high-pressure water is used to clean the outside of the drill rod to prevent impurities from affecting the measurement.
It enables real-time monitoring and adjustment of borehole verticality, improving borehole verticality and reducing measurement errors.
Smart Images

Figure CN223824927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling technology, and in particular to a device for improving the verticality of ground source heat pump drilling. Background Technology
[0002] Ground source heat pumps are highly efficient and energy-saving systems that utilize shallow geothermal energy for heating and cooling. They have advantages such as energy saving, environmental protection, stability, and reliability, and have been widely used globally. As people's requirements for energy conservation and environmental protection continue to increase, the application of ground source heat pump systems is becoming more and more widespread, and the requirements for their construction technology and equipment are also becoming more and more stringent. Drilling is one of the key steps in the construction of ground source heat pump systems, requiring the drilling of holes of a certain depth and diameter underground. The verticality of the drilled holes is an important requirement for the installation of buried pipe heat exchangers.
[0003] In existing technologies, due to the complex and diverse geological conditions, such as uneven soil hardness and the presence of rock interlayers, the drill rod is easily subjected to lateral forces and deviates during drilling. Furthermore, in the existing drilling process, it is not easy to determine whether the drill rod is vertical, which makes it impossible to adjust the position and attitude of the drilling rig in time, making it difficult to guarantee the verticality of the borehole. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the existing technology, due to the complex and diverse geological conditions, such as uneven soil hardness and the presence of rock interlayers, the drill rod is easily subjected to lateral forces and deviates during drilling. Furthermore, in the existing drilling process, it is not easy to determine whether the drill rod is vertical, which makes it impossible to adjust the position and attitude of the drilling rig in time, making it difficult to ensure the verticality of the borehole. Therefore, this invention proposes a device to improve the verticality of ground source heat pump boreholes.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for improving the verticality of ground source heat pump boreholes, comprising a mounting frame and two monitoring components;
[0006] The monitoring component includes a fixed frame, with multiple mounting sleeves fixedly connected at equal intervals on the inner surface of the fixed frame. Mounting blocks are fixedly connected to the inner surfaces of each mounting sleeve by bolts. Pressure sensors are fixedly connected to the inner bottom of each mounting block. Sliding blocks are movably connected to the inner surfaces of each mounting block. Trigger rods are fixedly connected to the outer surfaces of one side of each sliding block. Springs are fitted onto the outer surfaces of each trigger rod. Rectangular blocks movably penetrate the outer surfaces of each trigger rod. Ball bearings are provided on the inner surfaces of each sliding block. A water storage chamber is opened inside the fixed frame, and a water inlet pipe is fixedly connected to the top of the fixed frame.
[0007] Preferably, the water inlet pipe is connected to the water storage chamber, and multiple nozzles are fixedly connected at equal intervals on the inner surface of the fixing frame at the top of the mounting sleeve, and all of the multiple nozzles are connected to the water storage chamber.
[0008] Preferably, the spring is located between the sliding block and the rectangular block, and the outer surface of the rectangular block is fixedly connected to the inner surface of the sliding block.
[0009] Preferably, a threaded sleeve is fixedly connected to one outer surface of the fixing frame, and a sliding sleeve is fixedly connected to the other side of the fixing frame.
[0010] Preferably, a motor is fixedly connected to the outer surface of the mounting bracket, the output end of the motor movably penetrates the outer surface of the mounting bracket, and a bidirectional lead screw is fixedly connected to the output end of the motor.
[0011] Preferably, the inner surface of the threaded sleeve mates with the outer surface of the bidirectional lead screw, and a guide rod is fixedly connected to the inner surface of the mounting bracket, the outer surface of the guide rod mates with the inner surface of the sliding sleeve.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, when the drill rod is drilling, the ball bearings will rotate along the drill rod. When the drill rod deviates, the drill rod will squeeze the corresponding ball bearings, causing the sliding block to move into the mounting sleeve. This will drive the trigger rod to move along the rectangular block and contact the pressure sensor. When the pressure sensor exceeds the set threshold, it will transmit the signal to the external controller and trigger an audible and visual alarm. By monitoring whether the drill rod deviates in real time and issuing an alarm, the system can promptly notify the staff to adjust the attitude of the drill rod and improve the verticality of the borehole.
[0014] 2. In this utility model, an external water pump is connected to the water inlet pipe, so that high-pressure water enters the water storage chamber through the water inlet pipe and is sprayed out through the nozzle to clean the outside of the drill rod, thus avoiding measurement errors caused by impurities on the outside. Attached Figure Description
[0015] Figure 1 A perspective view of a device for improving the verticality of boreholes in a ground source heat pump is provided for this utility model.
[0016] Figure 2 A bottom schematic diagram of a device for improving the verticality of a ground source heat pump borehole is provided for this utility model.
[0017] Figure 3 A cross-sectional view of the fixing frame of a device for improving the verticality of ground source heat pump drilling is provided in this utility model.
[0018] Figure 4A partial structural cross-sectional view of a device for improving the verticality of ground source heat pump boreholes, as proposed in this utility model;
[0019] Figure 5 This utility model presents a schematic diagram of the monitoring component structure of a device for improving the verticality of ground source heat pump boreholes.
[0020] Legend: 1. Mounting bracket; 2. Motor; 3. Monitoring component; 301. Fixing bracket; 302. Water storage chamber; 303. Threaded sleeve; 304. Mounting sleeve; 305. Mounting block; 306. Sliding block; 307. Nozzle; 308. Sliding sleeve; 309. Water inlet pipe; 310. Ball bearing; 311. Rectangular block; 312. Trigger rod; 313. Pressure sensor; 314. Spring; 4. Guide rod; 5. Two-way lead screw. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1, as Figures 1-5As shown, this utility model provides a device for improving the verticality of ground source heat pump drilling, including a mounting frame 1 and two monitoring components 3; the monitoring components 3 include a fixed frame 301, with multiple mounting sleeves 304 fixedly connected at equal intervals on the inner surface of the fixed frame 301, mounting blocks 305 fixedly connected to the inner surfaces of the multiple mounting sleeves 304 by bolts, pressure sensors 313 fixedly connected to the inner bottom of the multiple mounting blocks 305, sliding blocks 306 movably connected to the inner surfaces of the multiple mounting blocks 305, trigger rods 312 fixedly connected to one outer surface of the multiple sliding blocks 306, springs 314 sleeved on the outer surfaces of the multiple trigger rods 312, and rectangular blocks 31 movably penetrating the outer surfaces of the multiple trigger rods 312. 1. A ball bearing 310 and a spring 314 are provided on the inner surface of multiple sliding blocks 306. The spring is located between the sliding block 306 and the rectangular block 311. The outer surface of the rectangular block 311 is fixedly connected to the inner surface of the sliding block 306. A threaded sleeve 303 is fixedly connected to one side of the outer surface of the fixing frame 301. A sliding sleeve 308 is fixedly connected to the other side of the fixing frame 301. A motor 2 is fixedly connected to the outer surface of the mounting frame 1. The output end of the motor 2 passes through the outer surface of the mounting frame 1. A two-way lead screw 5 is fixedly connected to the output end of the motor 2. The inner surface of the threaded sleeve 303 cooperates with the outer surface of the two-way lead screw 5. A guide rod 4 is fixedly connected to the inner surface of the mounting frame 1. The outer surface of the guide rod 4 cooperates with the inner surface of the sliding sleeve 308.
[0024] The overall effect of Embodiment 1 is as follows: During use, after horizontal installation and fixation of the mounting bracket 1 via the outer fixing seat, the drill rod is inserted between the two fixing brackets 301. Then, the motor 2 is started, driving the bidirectional lead screw 5 to rotate. Under the action of the two threaded sleeves 303, the two fixing brackets 301 move synchronously relative to each other. The sliding sleeve 308 slides along the guide rod 4, ensuring the stability of the movement of the fixing brackets 301. Therefore, the two fixing brackets 301 will wrap around the drill rod. At the same time, the internal pressure sensors 313 are all set with pressure thresholds by an external controller, so that during the drilling process... The ball bearing 310 rotates along the drill rod. When the drill rod deviates, it squeezes the corresponding ball bearing 310, causing the sliding block 306 to move into the mounting sleeve 304. This causes the trigger rod 312 to move along the rectangular block 311 and contact the pressure sensor 313. When the pressure sensor 313 exceeds the set threshold, it transmits a signal to the external controller and triggers an audible and visual alarm through the alarm light on the mounting bracket 1, promptly notifying the staff to adjust the drill rod's posture to ensure the verticality of the drill hole. The spring 314 is used to reset the sliding block 306, ensuring that the sliding block 306 can be reset promptly after adjustment.
[0025] Example 2, as Figures 1-5As shown, a water storage chamber 302 is provided inside the fixing frame 301. A water inlet pipe 309 is fixedly connected to the top of the fixing frame 301, and the water inlet pipe 309 communicates with the water storage chamber 302. Multiple nozzles 307 are fixedly connected at equal intervals to the top of the mounting sleeve 304 on the inner surface of the fixing frame 301, and all the nozzles 307 are connected to the water storage chamber 302.
[0026] The effect achieved by the entire embodiment 2 is that the mounting sleeve 304 and the mounting block 305 are fixed with bolts, which facilitates the disassembly and maintenance of the mounting block 305. At the same time, the external water pump is connected to the water inlet pipe 309, so that high-pressure water enters the water storage chamber 302 through the water inlet pipe 309, and then sprays water out through the nozzle 307 to clean the outside of the drill rod, avoiding measurement errors caused by impurities on the outside.
[0027] Working principle: During use, after horizontal installation and fixation of the mounting bracket 1 using the outer fixing seat, the drill rod is inserted between the two fixing brackets 301. Then, the motor 2 is started, driving the bidirectional lead screw 5 to rotate. Under the action of the two threaded sleeves 303, the two fixing brackets 301 move synchronously relative to each other. The sliding sleeve 308 slides along the guide rod 4 to ensure the stability of the movement of the fixing brackets 301. Therefore, the two fixing brackets 301 will wrap around the drill rod. At the same time, the internal pressure sensors 313 are all set with pressure thresholds through an external controller. During the drilling process, the drill rod is connected to an external water pump and an inlet pipe 309 to supply water from... High-pressure water enters the water storage chamber 302 through the inlet pipe 309 and is then sprayed out through the nozzle 307 to clean the outside of the drill rod, preventing impurities from causing measurement errors. The ball bearing 310 rotates along the drill rod. When the drill rod deviates, it squeezes the corresponding ball bearing 310, causing the sliding block 306 to move into the mounting sleeve 304. This moves the trigger rod 312 along the rectangular block 311 and into contact with the pressure sensor 313. When the pressure sensor 313 exceeds the set threshold, it transmits a signal to the external controller and triggers an audible and visual alarm, promptly notifying the staff to adjust the drill rod's posture and improve the verticality of the borehole.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A device for improving the verticality of ground source heat pump boreholes, characterized in that: Includes a mounting bracket (1) and two monitoring components (3); The monitoring component (3) includes a fixed frame (301). Multiple mounting sleeves (304) are fixedly connected at equal intervals on the inner surface of the fixed frame (301). Mounting blocks (305) are fixedly connected to the inner surfaces of the multiple mounting sleeves (304) by bolts. Pressure sensors (313) are fixedly connected to the inner bottom of the multiple mounting blocks (305). Sliding blocks (306) are movably connected to the inner surfaces of the multiple mounting blocks (305). Trigger rods (312) are fixedly connected to one outer surface of the multiple sliding blocks (306). Springs (314) are sleeved on the outer surfaces of the multiple trigger rods (312). Rectangular blocks (311) movably penetrate the outer surfaces of the multiple trigger rods (312). Ball bearings (310) are provided on the inner surfaces of the multiple sliding blocks (306). A water storage chamber (302) is opened inside the fixed frame (301). A water inlet pipe (309) is fixedly connected to the top of the fixed frame (301).
2. The device for improving the verticality of ground source heat pump boreholes according to claim 1, characterized in that: The water inlet pipe (309) is connected to the water storage chamber (302). The inner surface of the fixing frame (301) is fixedly connected with multiple nozzles (307) at equal intervals on the top of the mounting sleeve (304). All of the multiple nozzles (307) are connected to the water storage chamber (302).
3. The device for improving the verticality of ground source heat pump boreholes according to claim 1, characterized in that: The spring (314) is located between the sliding block (306) and the rectangular block (311), and the outer surface of the rectangular block (311) is fixedly connected to the inner surface of the sliding block (306).
4. The device for improving the verticality of ground source heat pump boreholes according to claim 1, characterized in that: A threaded sleeve (303) is fixedly connected to one outer surface of the fixing frame (301), and a sliding sleeve (308) is fixedly connected to the other side of the fixing frame (301).
5. The device for improving the verticality of ground source heat pump boreholes according to claim 4, characterized in that: A motor (2) is fixedly connected to the outer surface of the mounting bracket (1). The output end of the motor (2) is movably connected to the outer surface of the mounting bracket (1). A bidirectional lead screw (5) is fixedly connected to the output end of the motor (2).
6. The device for improving the verticality of ground source heat pump boreholes according to claim 5, characterized in that: The inner surface of the threaded sleeve (303) mates with the outer surface of the bidirectional lead screw (5), and the inner surface of the mounting bracket (1) is fixedly connected with a guide rod (4), the outer surface of the guide rod (4) mates with the inner surface of the sliding sleeve (308).