Safety early warning device for geological disaster prevention

Through the detachable connection design of the warning body and the fixing bolt, and the sliding cooperation of the pressure column and the support bolt, the problem of poor longitudinal fixation of the existing geological disaster warning device is solved, and more stable ground fixation is achieved.

CN223413754UActive Publication Date: 2025-10-03SICHUAN GEOLOGICAL ENVIRONMENT SURVEY & RES CENT
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Patent Information

Application Number
CN202422911012.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-03
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

The existing geological disaster early warning devices have poor longitudinal fixing effects and are easily loosened due to changes in ground conditions.

Method used

The warning body and fixing bolt are designed with detachable connection. The fixing bolt has a receiving cavity and a through hole along the length direction. Through the sliding fit of the pressure column and the support bolt, the support bolt gradually rotates after being inserted into the ground to enhance the longitudinal fixing effect.

Benefits of technology

The longitudinal fixing effect of the early warning device is effectively improved, damage and obstruction to the early warning body during installation are avoided, and the stability of the device is ensured.

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Abstract

The utility model discloses a safety pre-warning device for geological disaster prevention, which comprises a pre-warning main body, a fixing bolt and a plurality of supporting bolts, and is characterized in that the pre-warning main body is used for monitoring surrounding geological environment and pre-warning, and comprises a stand column and a plurality of pre-warning devices arranged on the stand column; the fixing bolt is used for being inserted into the ground, the top end of the fixing bolt is detachably connected with the stand column, a containing cavity is formed in the fixing bolt in the length direction, and a plurality of through holes are formed in the side wall of the fixing bolt and extend in the length direction of the fixing bolt; pressing columns are hinged to one ends of the supporting bolts through shafts, the pressing columns are arranged in the containing cavity in a sliding mode, the supporting bolts correspond to the through holes one to one, and the pressing columns are pressed downwards so that the supporting bolts can rotate relative to the pressing columns and gradually stretch out of the corresponding through holes. The safety pre-warning device can solve the problem that an existing safety pre-warning device is not ideal in longitudinal fixing effect.
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Description

Technical Field

[0001] The utility model relates to the technical field of geological disaster early warning, in particular to a safety early warning device for geological disaster prevention. Background Art

[0002] Geological disasters refer to geological events caused by natural or human factors that cause losses to human life and property and damage to the environment. Given their destructive power and degree of danger, geological disasters require early warning devices for monitoring and early warning.

[0003] Existing geological disaster early warning devices generally include a supporting and fixing mechanism and a number of early warning devices, batteries and photovoltaic modules installed on the supporting and fixing mechanism. The photovoltaic modules convert solar energy into electrical energy and store it in the battery. The battery continuously supplies power to all early warning devices. Each early warning device monitors and analyzes different parameters of geological disasters respectively, and issues early warnings based on the analysis. The supporting and fixing mechanism has two main functions. On the one hand, it provides an installation basis for all early warning devices, batteries and photovoltaic modules. On the other hand, it can stably fix the entire device on the ground.

[0004] The supporting and fixing mechanism of the existing early warning device generally adopts the method of inserting vertically set fixing bolts into the ground for fixing, which can effectively prevent the device from sliding laterally. However, since it is connected to the ground in the longitudinal direction in the shape of a rod, it is fixed only by friction, and the fixing effect is not ideal. As time goes by and the ground conditions change, it may become loose. Utility Model Content

[0005] The purpose of the utility model is to provide a safety warning device for geological disaster prevention, which can solve the problem that the vertical fixing effect of the existing safety warning device is not ideal.

[0006] The utility model is achieved through the following technical solutions:

[0007] A safety warning device for preventing geological disasters includes a warning body, which is used to monitor the surrounding geological environment and issue warnings. The warning body includes a column and several warning devices arranged on the column; a fixing bolt, which is used to be inserted into the ground, and the top of the fixing bolt is detachably connected to the column. The fixing bolt has an accommodating cavity along the length direction, and the side wall of the fixing bolt has multiple through holes, and the through holes extend along the length direction of the fixing bolt; multiple branch bolts, one end of the branch bolt is hinged with a pressure column, and the pressure column is slidably arranged in the accommodating cavity. The branch bolts correspond to the through holes one by one, and pressing down the pressure column can make the branch bolt rotate relative to the pressure column and gradually extend outward from the corresponding through hole.

[0008] Optionally, a torsion spring is provided at the hinged end of the support bolt, and when the torsion spring is in a natural state, the free end of the support bolt abuts against and presses against the cavity wall of the accommodating cavity.

[0009] Optionally, the top end of the through hole passes through the fixing bolt; the top axis of the pressure column is hinged with multiple pressure beams, the width of the pressure beams matches the width of the through hole, and the pressure beams correspond to the through holes one by one; the pressure beams can be rotated to the horizontal.

[0010] Optionally, a fixing plate is coaxially sleeved outside the fixing bolt, and the fixing plate is arranged perpendicular to the fixing bolt. The fixing plate has multiple bolt holes passing through it along the thickness direction, and the bottom surface of the fixing plate is used to fit with the ground; the fixing plate and the fixing bolt are formed as one piece; when the pressure beam abuts against the top surface of the fixing plate, the support bolt extends to the end position.

[0011] Optionally, the fixing bolt includes a cylindrical portion and a conical portion, and the tail end of the conical portion is threadedly connected to the bottom end of the cylindrical portion; the pressure column and the support bolt can be inserted into the accommodating cavity from the bottom end of the cylindrical portion.

[0012] Optionally, when the cone is screwed to the cylinder and the free end of the support bolt abuts against the tail end of the cone, the bottom end of the through hole is set at a height higher than the free end of the support bolt; the top coaxial cover of the fixing bolt is provided with an end cover, and the end cover is provided with multiple baffles vertically downward, and the baffles correspond to the through holes one by one, and the baffles are detachable and inserted into the corresponding through holes to make the through holes airtight.

[0013] Optionally, a rotor is coaxially connected to the middle part of the end cover, and the outer diameter of the rotor matches the diameter of the accommodating cavity; the outer wall of the rotor is provided with a first limit block; the cavity wall of the accommodating cavity is circumferentially provided with a first limit groove, and one end of the first limit groove is connected to any one of the through holes; the size of the limit block is smaller than the width of the through hole and matches the groove width of the first limit groove.

[0014] Optionally, a limit column is coaxially provided on the top of the pressure column; the inner diameter of the rotary cylinder matches the diameter of the limit column; the inner wall of the rotary cylinder is provided with a second limit block; the side wall of the limit column is axially provided with a positioning groove, and the top of the positioning groove passes through the top surface of the limit column; the side wall of the limit column is circumferentially provided with a second limit groove, and one end of the second limit groove is connected to the bottom end of the positioning groove; when the first limit block is located at the end of the first limit groove away from the through hole, the second limit block is located at the bottom end of the positioning groove, and the free end of the support bolt abuts against the tail end of the cone; when the first limit block is rotated into the through hole connected to the first limit groove, the second limit block is located at the end of the second limit groove away from the positioning groove.

[0015] Optionally, the outer diameter of the end cover matches the outer diameter of the top of the fixing bolt; the upper outer wall of the fixing bolt is provided with an external thread; the bottom of the column is coaxially provided with a mounting groove, the diameter of the mounting groove matches the outer diameter of the upper part of the fixing bolt, and the groove wall of the mounting groove is provided with an internal thread.

[0016] Optionally, when the column is screwed to the fixing bolt, the pressure beam rotated to a horizontal state is clamped between the bottom surface of the column and the top surface of the fixing plate.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The utility model provides a safety warning device for geological disaster prevention, which realizes the warning function and the initial fixation to the ground by providing an early warning body and a fixing bolt, and provides a detachable connection between the two to avoid unnecessary damage to the early warning body during the insertion of the fixing bolt into the ground, and avoids obstruction and hindrance that may be caused by the early warning body during the installation process; on this basis, by providing a receiving cavity and a through hole in the fixing bolt, and providing a pressure column and a plurality of support bolts, the pressure column and the receiving cavity are slidably matched, and when installing the fixing bolt, the support bolt is first received into the receiving cavity, and the free end of the support bolt is inserted into the bottom end of the through hole, and then the fixing bolt is vertically inserted into the ground, and after being inserted to a suitable depth, the pressure column is pressed down in the receiving cavity. , to drive the top end of the support bolt to move downward. Since the free end (bottom end) of the support bolt is inserted into the bottom end of the through hole, the through hole causes a longitudinal limit to it. As the top end of the support bolt continues to move downward, the support bolt gradually rotates outward, so that the free end gradually extends outward from the through hole and inserts into the soil around the side wall of the fixing bolt, and as the pressure column moves downward, the support bolt rotates and gradually tends to be horizontal, so as to form a larger angle with the fixing bolt, thereby effectively improving the longitudinal fixing effect; after the support bolt is fixed, the column of the warning body can be connected to the top of the fixing bolt; through the mutual cooperation of the above-mentioned features, the safety warning device for geological disaster prevention can effectively solve the problem of unsatisfactory longitudinal fixing effect of the existing safety warning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of a safety warning device for geological disaster prevention provided by an embodiment of the present utility model;

[0021] Figures 2 to 7 A side sectional schematic diagram of the installation process of a fixing bolt of a safety warning device for geological disaster prevention provided by an embodiment of the present utility model;

[0022] Figures 8 to 11 A schematic top view of the rotating drum of a safety warning device for geological disaster prevention provided by an embodiment of the present utility model during installation.

[0023] Markings and corresponding parts names in the accompanying drawings:

[0024] 10-column; 20-fixing bolt; 201-cylinder; 202-cone; 21-accommodating chamber; 211-first limiting groove; 22-through hole; 30-support bolt; 31-pressure column; 311-pressure beam; 312-limiting column; 313-positioning groove; 314-second limiting groove; 40-fixing plate; 41-bolt hole; 50-end cover; 51-baffle; 52-rotating cylinder; 521-first limiting block; 522-second limiting block. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0026] Example

[0027] Please refer to Figures 1 to 11 , this embodiment provides a safety warning device for geological disaster prevention, including an early warning body, which is used to monitor the surrounding geological environment and issue early warnings, and the early warning body includes a column 10 and a number of early warning devices arranged on the column 10; the second includes a fixing bolt 20, which is used to be inserted into the ground, and the top of the fixing bolt 20 is detachably connected to the column 10, and the fixing bolt 20 is provided with an accommodating cavity 21 along the length direction, and the side wall of the fixing bolt 20 is provided with a plurality of through holes 22, and the through holes 22 extend along the length direction of the fixing bolt 20; the third includes a plurality of support bolts 30, one end of the support bolt 30 is hinged with a pressure column 31, and the pressure column 31 is slidably arranged in the accommodating cavity 21, and the support bolts 30 correspond to the through holes 22 one by one. Pressing down the pressure column 31 can make the support bolt 30 rotate relative to the pressure column 31 and gradually extend outward from the corresponding through hole 22.

[0028] The safety warning device for geological disaster prevention provided in this embodiment realizes the warning function and the preliminary fixation to the ground by providing an early warning body and a fixing bolt 20. By providing a detachable connection between the two, unnecessary damage to the early warning body during the insertion of the fixing bolt 20 into the ground is avoided, and obstruction and hindrance that may be caused by the early warning body during the installation process is avoided. On this basis, a receiving cavity 21 and a through hole 22 are provided in the fixing bolt 20, and a pressure column 31 and a plurality of support bolts 30 are provided, so that the pressure column 31 and the receiving cavity 21 are slidably matched. When installing the fixing bolt 20, the support bolt 30 is first received into the receiving cavity 21, and the free end of the support bolt 30 is inserted into the bottom end of the through hole 22, and then the fixing bolt 20 is vertically inserted into the ground. After being inserted to a suitable depth, the pressure column is pressed down in the receiving cavity 21. 31, to drive the top end of the support bolt 30 to move downward. Since the free end (bottom end) of the support bolt 30 is inserted into the bottom end of the through hole 22, the through hole 22 causes a longitudinal limit to it. As the top end of the support bolt 30 continues to move downward, the support bolt 30 gradually rotates outward, so that the free end gradually extends outward from the through hole 22 and is inserted into the soil around the side wall of the fixing bolt 20, and as the pressure column 31 moves downward, the support bolt 30 rotates and gradually tends to be horizontal to form a larger angle with the fixing bolt 20, thereby effectively improving the longitudinal fixing effect; after the support bolt 30 is fixed, the column 10 of the warning body can be connected to the top of the fixing bolt 20; through the mutual cooperation of the above-mentioned features, the safety warning device for geological disaster prevention can effectively solve the problem of unsatisfactory longitudinal fixing effect of the existing safety warning device.

[0029] It should be noted that the above-mentioned early warning devices all adopt relevant early warning devices in the existing technology. The characteristics of this part are irrelevant to the technical problem to be solved by this application, so they will not be elaborated here.

[0030] In order to make the support bolt 30 more easily extend outward, a torsion spring is provided at the hinge end of the support bolt 30 . When the torsion spring is in a natural state, the free end of the support bolt 30 abuts against and presses the cavity wall of the accommodating cavity 21 .

[0031] By utilizing the elastic force of the torsion spring, the free end of the support bolt 30 is subjected to an outward rotation force so as to better cooperate with the downward pressure of the pressure column 31 .

[0032] In order to facilitate the downward pressing of the pressure column 31, the top end of the through hole 22 passes through the fixing bolt 20; the top axis of the pressure column 31 is hinged with multiple pressure beams 311, the width of the pressure beams 311 matches the width of the through hole 22, and the pressure beams 311 correspond one-to-one to the through holes 22; the pressure beams 311 can be rotated to the horizontal.

[0033] By providing the pressure beam 311 , the radial downward pressure area of ​​the top end of the pressure column 31 is increased, making it easier for installers to apply force.

[0034] In order to stabilize the fixing bolt 20 to prevent it from unnecessary skewing, and to limit the downward pressure height of the pressure beam 311 to avoid excessive downward pressure, a fixing plate 40 is coaxially sleeved on the outside of the fixing bolt 20, and the fixing plate 40 is perpendicularly arranged to the fixing bolt 20. The fixing plate 40 is provided with a plurality of bolt holes 41 along the thickness direction, and the bottom surface of the fixing plate 40 is used to fit with the ground; the fixing plate 40 and the fixing bolt 20 are integrally formed; when the pressure beam 311 abuts against the top surface of the fixing plate 40, the support bolt 30 extends to the end position.

[0035] Since a torsion spring is provided at the tail end of the support bolt 30, in order to facilitate the placement of the support bolt 30 into the accommodating cavity 21, the fixing bolt 20 includes a cylindrical portion 201 and a conical portion 202, and the tail end of the conical portion 202 is screwed to the bottom end of the cylindrical portion 201; the pressure column 31 and the support bolt 30 can be inserted into the accommodating cavity 21 from the bottom end of the cylindrical portion 201.

[0036] In order to prevent the support bolt 30 from extending from the through hole 22 under the action of the torsion spring during the insertion of the fixing bolt 20, when the cone 202 is screwed to the cylinder 201 and the free end of the support bolt 30 abuts against the tail end of the cone 202, the bottom end of the through hole 22 is set at a height higher than the free end of the support bolt 30; the top coaxial cover of the fixing bolt 20 is provided with an end cover 50, and the end cover 50 is vertically downwardly provided with a plurality of baffles 51, and the baffles 51 correspond to the through holes 22 one by one, and the baffles 51 can be detachably inserted into the corresponding through holes 22 to make the through holes 22 airtight.

[0037] Through the above arrangement, on the one hand, the wall of the accommodating cavity 21 is first used to limit the support bolt 30. After the fixing bolt 20 is inserted, the pressure column 31 is lifted up to move the support bolt 30 up to be flush with the bottom end of the through hole 22 and bounce into the through hole 22; on the other hand, the through hole 22 is blocked by the baffle 51, thereby effectively preventing soil from entering the accommodating cavity 21 from the through hole 22 during the insertion of the fixing bolt 20.

[0038] In order to axially limit the end cover 50 so that the axial position of the baffle 51 is fixed, the middle part of the end cover 50 is coaxially connected to a rotor 52, and the outer diameter of the rotor 52 matches the diameter of the accommodating cavity 21; the outer wall of the rotor 52 is provided with a first limiting block 521; the cavity wall of the accommodating cavity 21 is circumferentially provided with a first limiting groove 211, and one end of the first limiting groove 211 is connected to any one of the through holes 22; the size of the limiting block 521 is smaller than the width of the through hole 22, and matches the groove width of the first limiting groove 211.

[0039] Through the above arrangement, when installing the baffle 51, align the baffle 51 with the corresponding through hole 22, insert it from top to bottom, and then rotate the adjustment cylinder 52 to align the first limit block 521 with the through hole 22 connected to the first limit groove 211, and continue to insert it down along the through hole 22 until the baffle 51 completely closes the through hole 22, and then rotate the cylinder 52 to screw the first limit block 521 into the first limit groove 211, so as to effectively limit the axial position of the end cover 50 and the baffle 51.

[0040] In order to further facilitate the upward pulling of the pressure column 31, a limiting column 312 is coaxially provided on the top of the pressure column 31; the inner diameter of the rotary cylinder 52 matches the diameter of the limiting column 312; the inner wall of the rotary cylinder 52 is provided with a second limiting block 522; the side wall of the limiting column 312 is axially provided with a positioning groove 313, and the top of the positioning groove 313 passes through the top surface of the limiting column 312; the side wall of the limiting column 312 is circumferentially provided with a second limiting groove 314, and one end of the second limiting groove 314 is aligned with the positioning groove 313. The bottom end of the positioning groove 313 is connected; when the first limit block 521 is located at the end of the first limit groove 211 away from the through hole 22, the second limit block 522 is located at the bottom end of the positioning groove 313, and the free end of the support bolt 30 abuts against the tail end of the cone 202; when the first limit block 521 is rotated into the through hole 22 connected to the first limit groove 211, the second limit block 522 is located at the end of the second limit groove 314 away from the positioning groove 313.

[0041] When the locking cam 31 is unlocked, the locking cam 31 is unlocked and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state, and the locking cam 31 is in a locked state,

[0042] In order to further explain the detachable connection structure between the column 10 and the fixing bolt 20, the outer diameter of the end cover 50 matches the outer diameter of the top end of the fixing bolt 20; the upper outer wall of the fixing bolt 20 is provided with an external thread; the bottom of the column 10 is coaxially provided with a mounting groove, the diameter of the mounting groove matches the outer diameter of the upper part of the fixing bolt 20, and the groove wall of the mounting groove is provided with an internal thread.

[0043] With the above arrangement, after the pressure beam 311 is unfolded and pressed down, the baffle 51 can be vertically inserted into the corresponding through hole 22 from top to bottom again, and then the column 10 and the fixing bolt 20 are screwed together. At this time, the baffle 51 and the end cover 50 are located in the installation groove.

[0044] In order to prevent the support bolt 30 from retreating under the action of soil pressure, when the column 10 is screwed to the fixing bolt 20 , the pressure beam 311 rotated to a horizontal state is clamped between the bottom surface of the column 10 and the top surface of the fixing plate 40 .

[0045] Through the above arrangement, the pressure beam 311 is longitudinally limited by the column 10 and the fixing plate 40 , thereby indirectly limiting the longitudinal position of the support bolt 30 , thereby indirectly limiting the rotation position of the support bolt 30 .

[0046] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A safety warning device for geological disaster prevention, characterized in that: include: An early warning body, the early warning body is used to monitor the surrounding geological environment and issue early warnings, the early warning body includes a column (10) and a plurality of early warning devices arranged on the column (10); A fixing bolt (20), the fixing bolt (20) is used to be inserted into the ground, the top end of the fixing bolt (20) is detachably connected to the column (10), the fixing bolt (20) is provided with a receiving cavity (21) along the length direction, the side wall of the fixing bolt (20) is provided with a plurality of through holes (22), and the through holes (22) extend along the length direction of the fixing bolt (20); A plurality of support bolts (30) are provided, one end of each support bolt (30) is hinged with a pressure column (31), and the pressure column (31) is slidably arranged in the accommodating cavity (21). The support bolts (30) correspond to the through holes (22) one by one, and pressing down the pressure column (31) can cause the support bolts (30) to rotate relative to the pressure column (31) and gradually extend outward from the corresponding through holes (22).

2. The safety warning device for geological disaster prevention according to claim 1, characterized in that: A torsion spring is provided at the hinged end of the support bolt (30). When the torsion spring is in a natural state, the free end of the support bolt (30) abuts against and presses against the cavity wall of the accommodating cavity (21).

3. The safety warning device for geological disaster prevention according to claim 2, characterized in that: The top end of the through hole (22) passes through the fixing bolt (20); The top of the pressure column (31) is hinged with a plurality of pressure beams (311), the width of the pressure beams (311) matches the width of the through hole (22), and the pressure beams (311) correspond to the through holes (22) one by one; The pressure beam (311) can be rotated to a horizontal position.

4. The safety warning device for geological disaster prevention according to claim 3, characterized in that: A fixing plate (40) is coaxially sleeved outside the fixing bolt (20), and the fixing plate (40) is arranged perpendicular to the fixing bolt (20). The fixing plate (40) is provided with a plurality of bolt holes (41) along the thickness direction, and the bottom surface of the fixing plate (40) is used to fit the ground. The fixing plate (40) and the fixing bolt (20) are integrally formed; When the pressure beam (311) abuts against the top surface of the fixed plate (40), the support bolt (30) extends to the end position.

5. The safety warning device for geological disaster prevention according to claim 4, characterized in that: The fixing bolt (20) comprises a cylindrical portion (201) and a conical portion (202), wherein the tail end of the conical portion (202) is screwed to the bottom end of the cylindrical portion (201); The pressure column (31) and the support bolt (30) can be inserted into the accommodating cavity (21) from the bottom end of the cylinder (201).

6. The safety warning device for geological disaster prevention according to claim 5, characterized in that: When the cone (202) is screwed to the cylinder (201), and the free end of the support bolt (30) abuts against the tail end of the cone (202), the bottom end of the through hole (22) is arranged at a height higher than the free end of the support bolt (30); The top of the fixing bolt (20) is coaxially covered with an end cover (50), and the end cover (50) is vertically downwardly provided with a plurality of baffles (51), the baffles (51) corresponding to the through holes (22) one by one, and the baffles (51) are detachably inserted into the corresponding through holes (22) to seal the through holes (22).

7. The safety warning device for geological disaster prevention according to claim 6, characterized in that: The middle part of the end cover (50) is coaxially rotatably connected to a rotary cylinder (52), and the outer diameter of the rotary cylinder (52) matches the diameter of the accommodating cavity (21); The outer wall of the rotary drum (52) is provided with a first limiting block (521); A first limiting groove (211) is provided on the cavity wall of the accommodating cavity (21) along the circumferential direction, and one end of the first limiting groove (211) is connected to any one of the through holes (22); The size of the limiting block (521) is smaller than the width of the through hole (22) and matches the width of the first limiting groove (211).

8. The safety warning device for geological disaster prevention according to claim 7, characterized in that: A limiting column (312) is coaxially provided on the top of the pressure column (31); The inner diameter of the rotary cylinder (52) matches the diameter of the limiting column (312); A second limiting block (522) is provided on the inner wall of the rotary drum (52); A positioning groove (313) is formed on the side wall of the limiting column (312) along the axial direction, and the top end of the positioning groove (313) passes through the top surface of the limiting column (312); A second limiting groove (314) is formed on the side wall of the limiting column (312) along the circumferential direction, and one end of the second limiting groove (314) is connected to the bottom end of the positioning groove (313); When the first limiting block (521) is located at one end of the first limiting groove (211) away from the through hole (22), the second limiting block (522) is located at the bottom end of the positioning groove (313), and the free end of the support bolt (30) abuts against the tail end of the cone (202); When the first limiting block (521) rotates into the through hole (22) connected to the first limiting groove (211), the second limiting block (522) is located at an end of the second limiting groove (314) away from the positioning groove (313).

9. The safety warning device for geological disaster prevention according to claim 8, characterized in that: The outer diameter of the end cover (50) matches the outer diameter of the top end of the fixing bolt (20); The upper outer wall of the fixing bolt (20) is provided with an external thread; The bottom of the column (10) is coaxially provided with a mounting groove, the diameter of which matches the outer diameter of the upper portion of the fixing bolt (20), and the groove wall of the mounting groove is provided with an internal thread.

10. The safety warning device for geological disaster prevention according to claim 9, characterized in that: When the column (10) and the fixing bolt (20) are screwed together, the pressure beam (311) rotated to a horizontal state is clamped between the bottom surface of the column (10) and the top surface of the fixing plate (40).