A geothermal drilling early warning detection device

Abstract

The present invention relates to the technical field of geothermal drilling, and specifically discloses a geothermal drilling early warning detection device, in which an assembly module is installed on the outer wall of a transmission rod so that the assembly module rotates as the transmission rod rotates. Through rollers vertically arranged on the wheels, when drilling, the wheels contact the well wall. Through the lateral friction between multiple wheels and the well wall, and in conjunction with the first-level ball head and the second-level ball head, the positioning half ring will not rotate as the assembly half ring rotates, but will not affect the positioning half ring from rising and falling with the assembly half ring, the transmission rod and the drill bit. After the drill bit deviates during drilling and leaves the vertical track, the drill bit and the detection module on the positioning half ring will tilt, and the detection module will sense the tilt. The contact switch will transmit the tilt signal to the external terminal to remind personnel, and the direction of the tilt will be reflected on the bonding paper, so that personnel can understand the direction of the tilt.

Description

Technical Field

[0001] The present invention belongs to the technical field of geothermal drilling, and in particular relates to a geothermal drilling early warning detection device. Background Art

[0002] Geothermal drilling is a special technology used to drill for geothermal steam and geothermal water. It is an important and specialized technology and is essential for the exploration and exploitation of geothermal fluids. In existing technologies, when a drill bit is used for vertical drilling and the drill bit level changes and tilts, the tilt signal cannot be transmitted to the peripheral terminal in time to alert personnel in the early stages of the tilt, causing the drill bit to deviate from the vertical track for a long time, increasing costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a geothermal drilling early warning detection device for performing level detection on a drill bit during vertical drilling, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A geothermal drilling early warning detection device includes a drill bit and a transmission rod, the transmission rod is connected to the top of the drill bit, an assembly module is provided on the outer wall of the transmission rod, a positioning module is provided on the outer side of the assembly module, and a detection module is provided on the positioning module;

[0006] The detection module includes an external cover, a circular plate, a connecting circular hole, a branch rod, a connecting plate, an equipment slot, a contact switch, a linkage rod, a pen tip and a bonding paper. The circular plate is slidably fitted in the external cover. The connecting circular hole is opened in the middle of the circular plate, and the connecting circular hole passes through the circular plate up and down. The linkage rod is arranged in the connecting circular hole, and the linkage rod passes through the connecting circular hole up and down. The pen tip is connected to the bottom end of the linkage rod. After the drill bit deviates during drilling and deviates from the vertical track, the drill bit and the detection module on the positioning half ring tilt. The linkage rod is located below the circular plate and is longer than the part above the circular plate, so that the linkage rod is always vertical.

[0007] Preferably, the assembly module includes an assembly semi-ring, a fixing semi-ring, a limiting semi-ring, a circular rod and a primary ball head. The assembly semi-ring is symmetrically arranged on the outer wall of the transmission rod, the fixing semi-ring is connected to the top of the assembly semi-ring, and the inner wall of the fixing semi-ring is in contact with the outer wall of the transmission rod, the fixing semi-ring is fixedly connected to the transmission rod by a positioning bolt, the limiting semi-ring is connected to the middle of the outer wall of the assembly semi-ring, and the circular rod is connected in a circular array to the upper and lower sides of the outer wall of the assembly semi-ring, and the primary ball head is arranged in the middle of one end of the circular rod away from the assembly semi-ring. The assembly semi-ring is symmetrically arranged on the outer wall of the transmission rod, and the fixing semi-ring and the transmission rod are connected and fixed by positioning bolts, and then the two groups of positioning semi-rings are respectively arranged on the outside of the two groups of assembly semi-rings. At the same time, the limiting semi-ring is placed in the arc-shaped limiting groove and between the secondary ball heads arranged in the upper and lower arrays. The circular rod and the primary ball head provide a certain limiting effect to prevent the positioning semi-ring from contacting the assembly semi-ring and the limiting semi-ring.

[0008] Preferably, the positioning module includes a positioning semi-ring, an arc-shaped limiting notch, a secondary ball head and a fixing plate. The positioning semi-ring is symmetrically arranged on both sides of the transmission rod, and the positioning semi-ring is on the outside of the assembly semi-ring. The arc-shaped limiting notch is opened in the middle of the inner wall of the positioning semi-ring, and the outer wall of the limiting semi-ring is arranged in the arc-shaped limiting notch. The circumferential array of the secondary ball heads is arranged in the arc-shaped limiting notch, and the secondary ball head is connected to the positioning semi-ring. The secondary ball heads are symmetrically arranged on both sides of the limiting semi-ring from top to bottom, and the fixing plate is symmetrically arranged on both sides of the transmission rod from front to back, and the bottom surface of the fixing plate is in contact with the two groups of positioning semi-rings. The fixing plate is fixedly connected to the two groups of positioning semi-rings by positioning bolts. The limiting semi-ring is in the arc-shaped limiting notch and between the secondary ball heads arranged in the upper and lower arrays, and the fixing plate is used to connect and fix the two groups of positioning semi-rings.

[0009] The inner wall of the positioning half ring fits with the first-level ball head.

[0010] Preferably, the positioning module also includes a counterweight ring and rollers. The counterweight ring is connected to the top of the positioning half ring located on the right side, and the circumferential array of rollers is connected to the outer wall of the positioning half ring. Through the rollers arranged vertically, the wheels contact the well wall during drilling. Through the lateral friction between multiple wheels and the well wall, and in conjunction with the first-level ball head and the second-level ball head, the positioning half ring will not rotate with the rotation of the assembly half ring, but will not affect the positioning half ring rising and falling with the assembly half ring, the transmission rod and the drill bit. The setting of the counterweight ring balances the weight of the detection module on the positioning module.

[0011] Preferably, the detection module further comprises a bottom shell, a shock absorbing structure, a top shell and a mounting ring, the bottom shell is arranged at the top of the positioning module, the circumferential array of the shock absorbing structure is connected to the bottom of the bottom shell, the top shell is arranged at the top of the bottom shell, the mounting ring is connected to the bottom of the outer wall of the top shell, the bottom surface of the mounting ring is fitted with the bottom shell, and the mounting ring is fixedly connected to the bottom shell by a positioning bolt, thereby ensuring the rotation effect of the linkage rod and facilitating the disassembly and assembly between the bottom shell and the top shell, so that personnel can better take and place the laminating paper;

[0012] The bottom surface of the inner cavity of the bottom shell and the inner cavity of the top shell are both spherical structures.

[0013] Preferably, the bottom shell is arranged at the top of the positioning semi-ring located on the left side, and the shock-absorbing structure includes a base, a shock-absorbing spring, a supporting round rod and a sleeve. The base is connected to the bottom of the bottom shell, and the base is fixedly connected to the positioning semi-ring through a positioning bolt. The shock-absorbing spring is connected to the top of the base, the supporting round rod is connected to the top of the shock-absorbing spring, and the top of the supporting round rod is connected to the bottom shell. The sleeve is sleeved on the outside of the shock-absorbing spring and the supporting round rod, the inner wall of the sleeve is slidably matched with the outer wall of the supporting round rod, and the bottom end of the sleeve is connected to the base. The shock-absorbing spring is used to reduce the impact of vibration generated by the drill bit and the transmission rod during use on the linkage rod.

[0014] Preferably, the external cover is provided in the middle of the bottom end of the inner cavity of the bottom shell, the branch rods are connected to the outer wall of the external cover in a circumferential array, and the end of the branch rod away from the external cover is connected to the bottom shell, the connecting plate is symmetrically connected to both sides of the end of the branch rod away from the external cover, the connecting plate fits with the bottom shell, and the connecting plate is fixedly connected to the bottom shell by a positioning bolt, so as to facilitate the disassembly and assembly of the external cover into the bottom shell;

[0015] The connecting circular hole is located at the bottom surface of the inner cavity of the bottom shell and the center of the spherical structure of the inner cavity of the top shell;

[0016] The inner cavity of the external cover is a spherical structure;

[0017] The external cover is symmetrically connected with blocking rings on the upper and lower sides to block and restrict the circular plate so that the circular plate can be flipped within a certain range.

[0018] Preferably, the device slot is opened in the middle of the top surface of the inner cavity of the top shell, the contact switch is embedded in the device slot, the bonding paper is provided on the bottom surface of the inner cavity of the bottom shell, and the bottom end of the pen tip contacts the bonding paper, and the top end of the linkage rod fits with the contact switch. After the drill bit deviates during drilling and leaves the vertical track, the drill bit tilts along with the detection module on the positioning half ring, and the top end of the linkage rod separates from the contact switch. The contact switch transmits the tilt signal to the external terminal to remind personnel. The vertical pen tip indicates the tilt direction of the drill bit in the form of a line on the tilted bonding paper, which is convenient for personnel to understand the direction of the tilt, thereby realizing level measurement warning during drill drilling.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: when the present invention is in use, the assembly module is installed on the outer wall of the transmission rod, so that the assembly module rotates with the rotation of the transmission rod, and the wheels are vertically arranged with rollers. When drilling, the wheels contact the well wall, and the horizontal friction between multiple wheels and the well wall, and in conjunction with the first-level ball head and the second-level ball head, the positioning half ring will not rotate with the rotation of the assembly half ring, but will not affect the positioning half ring. It moves up and down with the assembly half ring, the transmission rod and the drill bit. After the drill bit deviates during drilling and leaves the vertical track, the drill bit and the detection module on the positioning half ring will tilt. The linkage rod is located below the circular plate and is longer than the part above the circular plate, so that the linkage rod The components are always vertical. When the drill bit is tilted, the external cover body, connected with the branch rod, tilts synchronously with the bottom shell and the top shell and the drill bit, while the circular plate slides on the spherical structure in the external cover body to keep the circular plate horizontal, while the linkage rod and the pen head remain vertical. The top of the linkage rod is separated from the contact switch. When separated, the contact switch transmits the tilt signal to the external terminal to remind personnel. The vertical pen head indicates the tilt direction of the drill bit on the tilted fitting paper in the form of a line, which is convenient for personnel to understand the tilt direction, thereby realizing level measurement of the drill bit during drilling. The shock-absorbing spring in the shock-absorbing structure reduces the impact of vibration generated by the drill bit and the transmission rod during use on the linkage rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic diagram of the overall structure of a geothermal drilling early warning detection device.

[0021] Figure 2 This is a schematic diagram of a positioning semi-ring of a geothermal drilling early warning detection device.

[0022] Figure 3 This is a schematic diagram of an assembly half ring of a geothermal drilling early warning detection device.

[0023] Figure 4 This is a schematic diagram of the bottom shell of a geothermal drilling early warning detection device.

[0024] Figure 5 This is a schematic diagram of the internal structure of the bottom shell of a geothermal drilling early warning detection device.

[0025] Figure 6 This is a schematic diagram of the internal structure of the external cover of a geothermal drilling early warning detection device.

[0026] Figure 7 This is a schematic diagram of the equipment slot of a geothermal drilling early warning detection device.

[0027] In the figure: 1. Drill bit; 2. Transmission rod; 3. Assembly module; 31. Assembly half ring; 32. Fixed half ring; 33. Limiting half ring; 34. Circular rod; 35. Primary ball head; 4. Positioning module; 41. Positioning half ring; 42. Arc-shaped limiting notch; 43. Secondary ball head; 44. Fixed plate; 45. Counterweight ring; 46. Roller; 5. Detection module; 51. Bottom shell; 52. Shock-absorbing structure; 521. Base; 522. Shock-absorbing spring; 523. Supporting round rod; 524. Sleeve; 53. Top shell; 54. Mounting ring; 55. External cover; 56. Circular plate; 57. Connecting round hole; 58. Branch rod; 59. Connecting plate; 510. Blocking ring; 511. Equipment notch; 512. Contact switch; 513. Linking rod; 514. Pen tip; 515. Laminating paper. DETAILED DESCRIPTION

[0028] Example 1

[0029] See also Figure 1-Figure 7 As shown, a geothermal drilling early warning detection device includes a drill bit 1 and a transmission rod 2. The transmission rod 2 is connected to the top of the drill bit 1. An assembly module 3 is provided on the outer wall of the transmission rod 2. A positioning module 4 is provided on the outer side of the assembly module 3. A detection module 5 is provided on the positioning module 4.

[0030] The detection module 5 includes an external cover 55, a circular plate 56, a connecting circular hole 57, a branch rod 58, a connecting plate 59, an equipment slot 511, a contact switch 512, a linkage rod 513, a pen tip 514 and a bonding paper 515. The circular plate 56 is slidably fitted in the external cover 55. The connecting circular hole 57 is opened in the middle of the circular plate 56, and the connecting circular hole 57 passes through the circular plate 56 up and down. The linkage rod 513 is arranged in the connecting circular hole 57, and the linkage rod 513 passes through the connecting circular hole 57 up and down. The pen tip 514 is connected to the bottom end of the linkage rod 513. After the drill bit 1 deviates during drilling and deviates from the vertical track, the drill bit 1 tilts together with the detection module 5 on the positioning half ring 41. The linkage rod 513 is located below the circular plate 56 and is longer than the part above the circular plate 56, so that the linkage rod 513 is always vertical.

[0031] refer to Figure 1-Figure 3As shown, the assembly module 3 includes an assembly semi-ring 31, a fixed semi-ring 32, a limiting semi-ring 33, a circular rod 34 and a first-level ball head 35. The assembly semi-ring 31 is symmetrically arranged on the outer wall of the transmission rod 2. The fixed semi-ring 32 is connected to the top of the assembly semi-ring 31, and the inner wall of the fixed semi-ring 32 fits the outer wall of the transmission rod 2. The fixed semi-ring 32 is fixedly connected to the transmission rod 2 by a positioning bolt. The limiting semi-ring 33 is connected to the middle of the outer wall of the assembly semi-ring 31. The circular rod 34 is connected to the upper and lower sides of the outer wall of the assembly semi-ring 31 in a circular array. The first-level ball head 35 is arranged on the circular The shaped rod 34 is away from the middle of one end of the assembly semi-ring 31, and the assembly semi-ring 31 is symmetrically arranged on the outer wall of the transmission rod 2, and the fixing semi-ring 32 is connected and fixed to the transmission rod 2 by positioning bolts, and then the two groups of positioning semi-rings 41 are respectively arranged on the outside of the two groups of assembly semi-rings 31, and at the same time, the limiting semi-ring 33 is placed in the arc-shaped limiting groove 42 and between the secondary ball heads 43 arranged in the upper and lower arrays. The circular rod 34 and the primary ball head 35 provide a certain limiting effect to prevent the positioning semi-ring 41 from contacting the assembly semi-ring 31 and the limiting semi-ring 33.

[0032] refer to Figure 1-Figure 3 As shown, the positioning module 4 includes a positioning semi-ring 41, an arc-shaped limiting notch 42, a secondary ball head 43 and a fixing plate 44. The positioning semi-ring 41 is symmetrically arranged on both sides of the transmission rod 2, and the positioning semi-ring 41 is on the outside of the assembly semi-ring 31. The arc-shaped limiting notch 42 is opened in the middle of the inner wall of the positioning semi-ring 41, and the outer wall of the limiting semi-ring 33 is arranged in the arc-shaped limiting notch 42. The secondary ball head 43 is arranged in a circumferential array in the arc-shaped limiting notch 42, and the secondary ball head 43 and the positioning semi-ring 41 connection, the secondary ball heads 43 are symmetrically arranged on both sides of the limiting half ring 33, and the fixing plates 44 are symmetrically arranged on both sides of the transmission rod 2, and the bottom surface of the fixing plate 44 is in contact with the two groups of positioning half rings 41. The fixing plate 44 is fixedly connected to the two groups of positioning half rings 41 by positioning bolts. The limiting half ring 33 is located in the arc-shaped limiting notch 42 and between the secondary ball heads 43 arranged in the upper and lower arrays. The fixing plate 44 is used to connect and fix the two groups of positioning half rings 41;

[0033] The inner wall of the positioning half ring 41 is in contact with the primary ball head 35 .

[0034] refer to Figure 1-Figure 3As shown, the positioning module 4 also includes a counterweight ring 45 and a roller 46. The counterweight ring 45 is connected to the top of the positioning half ring 41 located on the right side, and the roller 46 is connected to the outer wall of the positioning half ring 41 in a circular array. The roller 46 is vertically arranged through the wheel. When drilling, the wheel contacts the well wall. Through the lateral friction between multiple wheels and the well wall, and in conjunction with the first-level ball head 35 and the second-level ball head 43, the positioning half ring 41 will not rotate with the rotation of the assembly half ring 31, but will not affect the positioning half ring 41 rising and falling with the assembly half ring 31, the transmission rod 2 and the drill bit 1. The setting of the counterweight ring 45 balances the weight of the detection module 5 on the positioning module 4.

[0035] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the detection module 5 also includes a bottom shell 51, a shock absorbing structure 52, a top shell 53 and a mounting ring 54. The bottom shell 51 is provided at the top of the positioning module 4. The shock absorbing structure 52 is connected to the bottom of the bottom shell 51 in a circumferential array. The top shell 53 is provided at the top of the bottom shell 51. The mounting ring 54 is connected to the bottom of the outer wall of the top shell 53. The bottom surface of the mounting ring 54 is fitted with the bottom shell 51, and the mounting ring 54 is fixedly connected to the bottom shell 51 by a positioning bolt, thereby ensuring the rotation effect of the linkage rod 513 and facilitating the disassembly and assembly between the bottom shell 51 and the top shell 53, so that personnel can better take and place the bonding paper 515.

[0036] The bottom surface of the inner cavity of the bottom shell 51 and the inner cavity of the top shell 53 are both spherical structures.

[0037] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the bottom shell 51 is arranged at the top of the positioning semi-ring 41 located on the left side, and the shock-absorbing structure 52 includes a base 521, a shock-absorbing spring 522, a supporting round rod 523 and a sleeve 524. The base 521 is connected to the bottom of the bottom shell 51, and the base 521 is fixedly connected to the positioning semi-ring 41 through a positioning bolt. The shock-absorbing spring 522 is connected to the top of the base 521, the supporting round rod 523 is connected to the top of the shock-absorbing spring 522, and the top of the supporting round rod 523 is connected to the bottom shell 51. The sleeve 524 is sleeved on the outside of the shock-absorbing spring 522 and the supporting round rod 523. The inner wall of the sleeve 524 slides with the outer wall of the supporting round rod 523, and the bottom end of the sleeve 524 is connected to the base 521. The shock-absorbing spring 522 reduces the impact of vibration generated during use of the drill bit 1 and the transmission rod 2 on the linkage rod 513.

[0038] refer to Figure 5-Figure 7 As shown, the external cover 55 is provided in the middle of the bottom end of the inner cavity of the bottom shell 51, and the branch rods 58 are connected to the outer wall of the external cover 55 in a circumferential array, and the end of the branch rods 58 away from the external cover 55 is connected to the bottom shell 51, and the connecting plates 59 are symmetrically connected to both sides of the end of the branch rods 58 away from the external cover 55. The connecting plates 59 fit the bottom shell 51 and are fixedly connected to the bottom shell 51 by positioning bolts, so as to facilitate the disassembly and assembly of the external cover 55 into the bottom shell 51.

[0039] The connecting circular hole 57 is located at the bottom surface of the inner cavity of the bottom shell 51 and the center of the spherical structure of the inner cavity of the top shell 53;

[0040] The inner cavity of the external cover 55 is a spherical structure;

[0041] The external cover 55 is symmetrically connected to the upper and lower parts of the retaining ring 510 to retain and restrict the circular plate 56 so that the circular plate 56 can be flipped within a certain range.

[0042] refer to Figure 5-Figure 7 As shown, the device slot 511 is opened in the middle of the top surface of the inner cavity of the top shell 53, the contact switch 512 is embedded in the device slot 511, the bonding paper 515 is provided on the bottom surface of the inner cavity of the bottom shell 51, and the bottom end of the pen head 514 is in contact with the bonding paper 515, and the top end of the linkage rod 513 is in contact with the contact switch 512. After the drill bit 1 deviates during drilling and deviates from the vertical track, the drill bit 1 tilts along with the detection module 5 on the positioning half ring 41, and the top end of the linkage rod 513 is separated from the contact switch 512. The contact switch 512 transmits the tilt signal to the external terminal to remind personnel. The vertical pen head 514 indicates the tilt direction of the drill bit 1 on the tilted bonding paper 515 in the form of a line, which is convenient for personnel to understand the tilt direction, thereby realizing the leveling measurement early warning of the drill bit 1 during drilling.

[0043] Working principle: The assembly half ring 31 is symmetrically arranged on the outer wall of the transmission rod 2, and the fixing half ring 32 is connected and fixed to the transmission rod 2 by the positioning bolts. Then, the two sets of positioning half rings 41 are respectively arranged on the outside of the two sets of assembly half rings 31, and at the same time, the limiting half ring 33 is placed in the arc-shaped limiting groove 42 and between the secondary ball heads 43 arranged in the upper and lower arrays. The two sets of positioning half rings 41 are connected and fixed using the fixing plate 44. The assembly module 3 rotates with the rotation of the transmission rod 2, and the wheel is vertically arranged. The rollers 46 are arranged such that when drilling, the wheels come into contact with the well wall. Through the lateral friction between the multiple wheels and the well wall, and in conjunction with the first-level ball head 35 and the second-level ball head 43, the positioning half ring 41 will not rotate with the rotation of the assembly half ring 31, but will not affect the positioning half ring 41 from rising and falling with the assembly half ring 31, the transmission rod 2 and the drill bit 1. When the drill bit 1 deviates during drilling and leaves the vertical track, the drill bit 1 and the detection module 5 on the positioning half ring 41 will tilt, and the linkage rod 513 will be in a circular The portion below the plate 56 is longer than the portion above the circular plate 56, so that the linkage rod 513 is always vertical. When the drill bit 1 is tilted, the external cover 55 is connected with the branch rod 58, and the bottom shell 51 and the top shell 53 are tilted synchronously with the drill bit 1, while the circular plate 56 slides on the spherical structure in the external cover 55, so that the circular plate 56 remains horizontal, while the linkage rod 513 and the pen head 514 remain vertical, and the top of the linkage rod 513 is separated from the contact switch 512. When separated, the contact switch 512 transmits a tilt signal to the external terminal to remind personnel to prevent the drill bit 1 from being out of the vertical track for a long time and causing the drilling project to fail. The vertical pen head 514 indicates the tilt direction of the drill bit 1 on the tilted bonding paper 515 in the form of lines, which makes it easier for personnel to understand the tilt direction, thereby realizing level measurement of the drill bit 1 during drilling. The shock-absorbing spring 522 reduces the impact of vibration generated by the drill bit 1 and the transmission rod 2 during use on the linkage rod 513.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A geothermal drilling early warning detection device, comprising a drill bit (1) and a transmission rod (2), characterized in that: The transmission rod (2) is connected to the top of the drill bit (1); an assembly module (3) is provided on the outer wall of the transmission rod (2); a positioning module (4) is provided on the outer side of the assembly module (3); and a detection module (5) is provided on the positioning module (4); The detection module (5) includes an external cover (55), a circular plate (56), a connecting circular hole (57), a branch rod (58), a connecting plate (59), a device slot (511), a contact switch (512), a linkage rod (513), a pen head (514) and a bonding paper (515); the circular plate (56) is slidably fitted in the external cover (55); the connecting circular hole (57) is provided in the middle of the circular plate (56), and the connecting circular hole (57) passes through the circular plate (56) from top to bottom; the linkage rod (513) is provided in the connecting circular hole (57), and the linkage rod (513) passes through the connecting circular hole (57) from top to bottom; and the pen head (514) is connected to the bottom end of the linkage rod (513); The positioning module (4) includes a counterweight ring (45) and rollers (46), the counterweight ring (45) is connected to the top of the positioning semi-ring (41) located on the right side, and the rollers (46) are connected to the outer wall of the positioning semi-ring (41) in a circumferential array; The detection module (5) includes a bottom shell (51), a shock absorbing structure (52), a top shell (53) and a mounting ring (54), wherein the bottom shell (51) is arranged at the top of the positioning module (4), the shock absorbing structure (52) is connected to the bottom of the bottom shell (51) in a circumferential array, the top shell (53) is arranged at the top of the bottom shell (51), the mounting ring (54) is connected to the bottom of the outer wall of the top shell (53), the bottom surface of the mounting ring (54) is in contact with the bottom shell (51), and the mounting ring (54) is fixedly connected to the bottom shell (51) by a positioning bolt; The bottom surface of the inner cavity of the bottom shell (51) and the inner cavity of the top shell (53) are both spherical structures; The device slot (511) is opened in the middle of the top surface of the inner cavity of the top shell (53), the contact switch (512) is embedded in the device slot (511), the bonding paper (515) is provided on the bottom surface of the inner cavity of the bottom shell (51), and the bottom end of the pen head (514) contacts the bonding paper (515), and the top end of the linkage rod (513) is in contact with the contact switch (512).

2. The geothermal drilling early warning detection device according to claim 1, characterized in that: The assembly module (3) comprises an assembly semi-ring (31), a fixed semi-ring (32), a limiting semi-ring (33), a circular rod (34) and a first-level ball head (35). The assembly semi-ring (31) is symmetrically arranged on the outer wall of the transmission rod (2). The fixed semi-ring (32) is connected to the top of the assembly semi-ring (31), and the inner wall of the fixed semi-ring (32) is in contact with the outer wall of the transmission rod (2). The fixed semi-ring (32) is fixedly connected to the transmission rod (2) by a positioning bolt. The limiting semi-ring (33) is connected to the middle of the outer wall of the assembly semi-ring (31). The circular rod (34) is connected to the upper and lower sides of the outer wall of the assembly semi-ring (31) in a circumferential array. The first-level ball head (35) is arranged at the middle of one end of the circular rod (34) away from the assembly semi-ring (31).

3. The geothermal drilling early warning detection device according to claim 2, characterized in that: The positioning module (4) includes a positioning semi-ring (41), an arc-shaped limiting notch (42), a secondary ball head (43) and a fixing plate (44). The positioning semi-ring (41) is symmetrically arranged on both sides of the transmission rod (2), and the positioning semi-ring (41) is located outside the assembly semi-ring (31). The arc-shaped limiting notch (42) is opened in the middle of the inner wall of the positioning semi-ring (41). The outer wall of the limiting semi-ring (33) is arranged in the arc-shaped limiting notch (42). The secondary ball head The circular array (43) is arranged in the arc-shaped limiting groove (42), and the secondary ball head (43) is connected to the positioning semi-ring (41), the secondary ball head (43) is symmetrically arranged on both sides of the limiting semi-ring (33) in the upper and lower directions, and the fixed plate (44) is symmetrically arranged on both sides of the transmission rod (2) in the front and rear directions, and the bottom surface of the fixed plate (44) is in contact with the two groups of positioning semi-rings (41), and the fixed plate (44) is fixedly connected to the two groups of positioning semi-rings (41) by positioning bolts; The inner wall of the positioning half ring (41) is fitted with the first-level ball head (35).

4. The geothermal drilling early warning detection device according to claim 3, characterized in that: The bottom shell (51) is arranged at the top of the positioning half ring (41) located on the left side. The shock-absorbing structure (52) includes a base (521), a shock-absorbing spring (522), a supporting round rod (523) and a sleeve (524). The base (521) is connected to the bottom of the bottom shell (51), and the base (521) is fixedly connected to the positioning half ring (41) through a positioning bolt. The shock-absorbing spring (522) is connected to the top of the base (521). The supporting round rod (523) is connected to the top of the shock-absorbing spring (522), and the top of the supporting round rod (523) is connected to the bottom shell (51). The sleeve is sleeved on the outside of the shock-absorbing spring and the supporting round rod. The inner wall of the sleeve is slidably matched with the outer wall of the supporting round rod, and the bottom end of the sleeve is connected to the base.

5. The geothermal drilling early warning detection device according to claim 1, characterized in that: The external cover (55) is arranged in the middle of the bottom end of the inner cavity of the bottom shell (51), the branch rods (58) are connected to the outer wall of the external cover (55) in a circumferential array, and the end of the branch rod (58) away from the external cover (55) is connected to the bottom shell (51), the connecting plate (59) is symmetrically connected to both sides of the end of the branch rod (58) away from the external cover (55), the connecting plate (59) is fitted with the bottom shell (51), and the connecting plate (59) is fixedly connected to the bottom shell (51) by a positioning bolt; The connecting circular hole (57) is located at the bottom surface of the inner cavity of the bottom shell (51) and the center of the spherical structure of the inner cavity of the top shell (53); The inner cavity of the external cover (55) is a spherical structure; The external cover (55) is symmetrically connected to the blocking ring (510) in the upper and lower parts.

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