Survey surface movement deformation surveying and mapping device

Abstract

The invention relates to the technical field of geological monitoring, and particularly discloses an earth surface movement deformation surveying and mapping device which comprises a supporting table, a rotating rod and a base, the top of the rotating rod is rotationally connected with the supporting table, and the rotating rod penetrates through the base and is in threaded fit with the base; a switching rod is axially arranged in the rotating rod in a sliding mode, an abutting part and a receding part are arranged on the switching rod in the circumferential direction at intervals, a limiting rod is elastically arranged on the rotating rod in a sliding mode in the radial direction, and the switching rod is arranged to be capable of rotating and switching between a locking state formed by abutting the abutting part against the limiting rod and an unlocking state formed by receding the limiting rod through the receding part; a monitoring assembly is arranged on the supporting table. By arranging the limiting rod and the switching rod in the rotating rod and arranging the abutting part and the receding part on the switching rod, self-locking can be automatically formed when the switching rod enters the ground, the fixing stability of the monitoring assembly is guaranteed, self-locking can be automatically relieved when the monitoring assembly needs to be dismantled, it is guaranteed that the switching rod is smoothly pulled out, and convenience and labor saving are achieved.

Description

Technical Field

[0001] The present application relates to the field of geological monitoring technology, and in particular to a surface movement and deformation mapping device. Background Art

[0002] Surface movement and deformation refers to the spatial movement and morphological changes of the surface after being acted upon by various internal and external forces. This change usually includes vertical subsidence and horizontal movement, and the main descriptive parameters include inclination, curvature, horizontal deformation, etc. In order to accurately grasp the situation of surface movement and deformation, effective monitoring means need to be adopted for real-time monitoring.

[0003] The patent document with announcement number CN115371649B discloses a fixed-point mapping and monitoring instrument for surface movement and deformation in goaf areas. By moving and fixing the entire device to different places, the surface conditions in all directions and sections are monitored, which has certain positive significance. However, there are also certain shortcomings. For example, in this application, the screw is inserted into the soil by applying downward pressure on the driving disk. Subsequently, the screw rotates under the cooperation of the spiral limit of the first gear, and then extends the spiral to the surface. Although it can also be inserted into the surface, in fact, the force that can more easily enter the surface should be the rotational force. However, the force initially applied to the driving disk is more of a downward force. Therefore, when it is converted into a rotational force, it is bound to cause a certain amount of energy loss; in addition, the driving disk in this application uses the lever principle to pull the screw "hardly" upward during the rising process, which is relatively laborious. Summary of the invention

[0004] The purpose of this application is to provide a surface movement deformation mapping device to solve the above-mentioned problems.

[0005] To achieve the above purpose, the technical solution of this application is: A surface movement and deformation mapping device comprises: a support platform, a rotating rod and a base, the top of the rotating rod is rotatably connected to the support platform, the rotating rod passes through the base and is threadedly matched with the base; a conversion rod is axially slidably provided inside the rotating rod, an abutment portion and a yielding portion are circumferentially spaced on the conversion rod, a limit rod is elastically provided on the rotating rod for radial sliding, and the conversion rod is configured to be able to rotate and switch between a locked state formed by the abutment portion abutting the limit rod and an unlocked state formed by the yielding portion yielding to the limit rod; a monitoring component is provided on the support platform.

[0006] Preferably, a frustum is provided on the conversion rod, and the abutment portion is a side surface of the frustum; the yielding portion is a yielding groove, and the yielding groove passes through the frustum in the up-down direction.

[0007] Preferably, a baffle is provided inside the rotating rod, and a first spring is sleeved on the conversion rod, one end of the first spring abuts against the lower end surface of the frustum, and the other end abuts against the side of the baffle facing the conversion rod.

[0008] Preferably, a through opening is provided on the base, a threaded sleeve is provided on the base corresponding to the through opening, and the outer peripheral wall of the rotating rod is threadedly matched with the threaded sleeve; an opening is provided on the top side wall of the rotating rod, a hinged rod is provided on the opening, one end of the hinged rod located inside the rotating rod abuts against the upper end surface of the cone, and one end of the hinged rod located outside the rotating rod is used to abut against the end surface of the threaded sleeve.

[0009] Preferably, the side wall of the rotating rod is provided with a sliding hole, the limiting rod is slidably arranged in the sliding hole, the limiting rod is provided with a limiting handle at one end located inside the rotating rod, and a second spring is provided on the limiting rod, one end of the second spring abuts against the limiting handle, and the other end abuts against the inner wall of the rotating rod.

[0010] Preferably, a control gap is provided between the monitoring component and the support platform, and the top of the conversion rod passes through the support platform and is located in the control gap; a shift rod is vertically provided on the top of the conversion rod.

[0011] Preferably, a first bevel gear is sleeved on the outer peripheral wall of the rotating rod, a rotating shaft is rotatably provided on the bottom side of the support platform, a second bevel gear is provided at one end of the rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other; a first gear is provided at the other end of the rotating shaft, a rack is vertically provided on the base, and a through hole is provided on the support platform along the up and down directions corresponding to the first gear, and the first gear and the rack are meshed with each other.

[0012] Preferably, a rotating shaft is hingedly provided on the base, and two groups of rotating shafts are arranged at intervals, and each group of rotating shafts is provided with two rotating wheels arranged axially at intervals along the rotating shaft; a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the rotating wheel, and the other end is connected to the base; a pressing handle is provided on the rotating shaft, and a sliding column is provided on the pressing handle; it also includes a connecting rod, and a narrow groove is provided on the connecting rod, and the corresponding sliding columns on the two groups of rotating shafts are both located in the narrow groove and slidably cooperate with the narrow groove.

[0013] Preferably, a non-slip plug-in column is provided at the bottom of the base.

[0014] Preferably, a support frame is provided on the top of the support platform, and the monitoring component is arranged on the support frame.

[0015] The surface movement and deformation surveying and mapping device disclosed in the present application can make the conversion rod automatically self-lock when entering the inside of the ground by arranging a limit rod and a conversion rod inside the rotating rod, and arranging an abutment portion and a yielding portion on the conversion rod, thereby ensuring the stability of the fixation of the monitoring component, and when dismantling is required, the self-locking can be automatically released to ensure the smooth removal of the conversion rod, which is very convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the overall structure of this application; Figure 2 This is the right view of the overall structure of this application; Figure 3 This is the left view of the overall structure of this application; Figure 4 This is a top view of the overall structure of this application; Figure 5 This is a bottom view of the overall structure of this application; Figure 6 This is a three-dimensional diagram of the overall structure of this application; Figure 7 This is a three-dimensional diagram of the overall structure of this application from another angle; Figure 8 It is a cross-sectional view of the rotating rod in this application; Fig. 9 for Figure 8 A partial enlarged view in the middle; Fig.10 for Figure 8 A partial enlarged view of point B in the middle; Fig.11 This is a schematic diagram of the conversion rod structure in this application; Fig.12 This is a partial enlarged schematic diagram of the position of the first bevel gear in this application; Fig.13 This is a partial enlarged schematic diagram of the base position in this application.

[0017] In the figure: 1. Support platform; 10. Support frame; 11. Monitoring component; 12. First bevel gear; 13. Second bevel gear; 130. First gear; 131. Rotating shaft; 2. Rotating rod; 20. Opening; 21. Sliding hole; 3. Base; 30. Threaded sleeve; 31. Rack; 32. Rotating shaft; 33. Rotating wheel; 34. Pressing handle; 340. Sliding column; 341. Stop handle; 35. Connecting rod; 36. Slot; 37. Anti-skid plug-in column; 38. Torsion spring; 4. Conversion rod; 40. Push rod; 41. Cone; 410. Abutment portion; 411. Yielding portion; 42. Support sleeve; 43. Baffle; 44. First spring; 45. Articulated rod; 46. Limiting rod; 460. Second spring; 47. Limiting handle; 5. Bearing. DETAILED DESCRIPTION

[0018] The present application is now described in further detail in conjunction with the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present application in a schematic manner, and therefore only show the components related to the present application.

[0019] like Figure 1-13 As shown, a surface movement and deformation mapping device includes: a support platform 1, a rotating rod 2 and a base 3, the top of the rotating rod 2 is rotatably connected to the support platform 1, the rotating rod 2 passes through the base 3 and is threadedly matched with the base 3; a conversion rod 4 is axially slidably provided inside the rotating rod 2, and an abutment portion 410 and a yielding portion 411 are circumferentially spaced on the conversion rod 4, a limit rod 46 is elastically provided on the rotating rod 2 for radial sliding, and the conversion rod 4 is configured to be able to rotate and switch between a locked state formed by the abutment portion 410 abutting the limit rod 46 and an unlocked state formed by the yielding portion 411 yielding to the limit rod 46; a monitoring component 11 is provided on the support platform 1.

[0020] The support platform 1 is a plate-shaped structure, which is mainly used to support and install the monitoring component 11.

[0021] The rotating rod 2 is a hollow structure with a cylindrical cavity inside, and its top is rotatably connected to a hole reserved on the support platform 1. Exemplarily, the cooperation between the rotating rod 2 and the hole reserved on the support platform 1 can be achieved through a bearing 5.

[0022] The bottom of the rotating rod 2 is sharp so as to facilitate entering the ground in a spiral state.

[0023] The base 3 is located below the support platform 1 , and when the entire device is in a natural state, the distance between the support platform 1 and the base 3 is the largest.

[0024] The base 3 is provided with a hole for the rotating rod 2 to pass through, and the hole is threadedly matched with the rotating rod 2. When the support platform 1 descends, the rotating rod 2 is matched with the hole, which can drive the rotating rod 2 to rotate and provide a certain limit for the rotating rod 2.

[0025] A conversion rod 4 is provided in the cylindrical cavity inside the rotating rod 2. The conversion rod 4 can slide along the axial direction of the rotating rod 2 and can also rotate around its own axis.

[0026] A limit rod 46 is provided on the side wall of the rotating rod 2. The limit rod 46 slides through the side wall of the rotating rod 2. When the limit rod 46 is not affected by other external forces, it has a tendency to move toward the inside of the rotating rod 2 under the action of elastic force. When one end of the limit rod 46 located inside the rotating rod 2 is pushed, it will extend toward the outside of the rotating rod 2, so as to extend when the entire rotating rod 2 is located inside the ground, thereby forming an obstacle to the pulling out of the rotating rod 2, thereby further ensuring the firmness of the entire rotating rod 2.

[0027] In order to realize the extension and retraction of the limit rod 46, an abutment portion 410 and a yielding portion 411 are arranged at intervals on the rotating rod 2 in the circumferential direction. When the entire rotating rod 2 is inserted into the ground, the abutment portion 410 abuts against one end of the limit rod 46 located inside the rotating rod 2, so that the limit rod 46 extends to form a limit on the rotating rod 2, that is, a locked state; when it needs to be pulled out, the conversion rod 4 is rotated to make the abutment portion 410 and the yielding portion 411 transform in the circumferential direction, so that the limit rod 46 cooperates with the yielding portion 411 and disengages from the abutment portion 410, so that the limit rod 46 retracts into the interior of the rotating rod 2 under the action of elastic force, so as to facilitate the pulling out of the rotating rod 2, that is, the unlocked state.

[0028] The descent of the conversion rod 4 can be achieved by a structure similar to a stroke trigger switch, the rise of the conversion rod 4 can be achieved by elastic force, and the rotation of the conversion rod 4 can be achieved by the staff turning the conversion rod 4.

[0029] By arranging a limit rod 46 and a conversion rod 4 inside the rotating rod 2, and arranging an abutment portion 410 and a yield portion 411 on the conversion rod 4, the conversion rod 4 can automatically self-lock when entering the ground, thereby ensuring the stability of the fixation of the monitoring component 11. When it needs to be removed, the self-locking function can also be automatically released to ensure that the conversion rod 4 can be smoothly pulled out, which is very convenient and labor-saving.

[0030] The monitoring component 11 can be a GNSS ground displacement monitor or some other type of monitor. Since this type of monitoring instrument has been widely used in the fields of geological disaster warning, engineering safety monitoring, and mine safety production, and is existing technology, its structure and working principle will not be described in detail in this embodiment.

[0031] In some other embodiments, a support sleeve 42 may be provided inside the rotating rod 2 , and the support sleeve 42 is used to limit the up and down movement and rotation of the conversion rod 4 .

[0032] In some further embodiments, a frustum 41 is provided on the conversion rod 4 , the abutting portion 410 is a side surface of the frustum 41 ; the yielding portion 411 is a yielding groove, and the yielding groove penetrates the frustum 41 in the up-down direction.

[0033] Exemplarily, a cone 41 is provided on the rotating rod 2, the bottom diameter of the cone 41 is smaller than the top diameter, wherein the abutment portion 410 is the side surface of the entire cone 41; at the same time, a clearance groove is provided on the cone 41 along the up and down directions, and the clearance groove is the clearance portion 411.

[0034] Before the conversion rod 4 slides downward, the clearance groove and the limit rod 46 are staggered. At this time, the descent of the conversion rod 4 will drive the side of the cone 41 to gradually abut the limit rod 46 until the limit rod 46 is radially extended to the outside of the rotating rod 2 for a distance, that is, the locked state; when the conversion rod 4 is rotated, the limit rod 46 enters the clearance groove, and the limit rod 46 is no longer abutted by the side of the cone 41, thereby retracting into the inside of the rotating rod 2 to form an unlocking state.

[0035] It should be noted that, in some other embodiments, the number of the cones 41 can be multiple, and the multiple cones 41 are arranged at intervals along the axial direction of the conversion rod 4. At the same time, the limit rods 46 can also be arranged at intervals along the axial direction of the rotating rod 2. In addition, in order to further ensure the stability of the self-locking state, two clearance grooves can be symmetrically provided on the cone 41, and the limit rods 46 are correspondingly symmetrically provided in two rows on the outer peripheral wall of the rotating rod 2.

[0036] In some further embodiments, a baffle 43 is provided inside the rotating rod 2, and a first spring 44 is sleeved on the conversion rod 4. One end of the first spring 44 abuts against the lower end surface of the cone 41, and the other end abuts against the side of the baffle 43 facing the conversion rod 4.

[0037] The elastic force driving the conversion rod 4 to rise can be achieved by the first spring 44. Specifically, a baffle 43 is provided inside the rotating rod 2. In this embodiment, the baffle 43 is located at the bottom of the columnar cavity and below the conversion rod 4, and the first spring 44 is located between the conversion rod 4 and the baffle 43. When the conversion rod 4 rotates, the limit rod 46 cooperates with the give way groove, and the rotating rod 2 is in a state of upward from the inside of the ground at this time, so that the lock of the conversion rod 4 is released, and under the action of the first spring 44, the conversion rod 4 automatically rises.

[0038] The first spring 44 can also maintain the rising state of the conversion rod 4 to prevent it from moving downward in a natural state and triggering the limit rod 46 to extend outward.

[0039] In some further embodiments, a through opening is provided on the base 3, a threaded sleeve 30 is provided on the base 3 corresponding to the through opening, and the outer peripheral wall of the rotating rod 2 is threadedly matched with the threaded sleeve 30; an opening 20 is provided on the top side wall of the rotating rod 2, and a hinged rod 45 is provided on the opening 20, and one end of the hinged rod 45 located inside the rotating rod 2 abuts against the upper end surface of the cone 41, and the other end of the hinged rod 45 located outside the rotating rod 2 is used to abut against the end surface of the threaded sleeve 30.

[0040] Reference Fig. 9 and Fig.13 The hole on the base 3 is actually a through hole, and the threaded sleeve 30 is arranged corresponding to the through hole. The rotating rod 2 always cooperates with the threaded sleeve 30 during the process of being screwed into the ground.

[0041] An opening 20 is provided at the top position of the rotating rod 2, and a hinged rod 45 is hingedly provided on the edge of the opening 20. The hinged rod 45 is substantially a lever structure, wherein one end of the hinged rod 45 located inside the rotating rod 2 abuts against the upper end surface of the cone 41. When the end of the hinged rod 45 located outside the rotating rod 2 is subjected to an upward force, the end of the hinged rod 45 located inside the rotating rod 2 will move downward, and then exert a downward force on the cone 41, so that the conversion rod 4 moves downward, and finally the conical surface of the cone 41 abuts against the limiting rod 46, so that the limiting rod 46 extends outward to achieve self-locking.

[0042] Correspondingly, in other embodiments, the opening 20 and the hinge rod 45 are provided with two groups corresponding to the two rows of limit rods 46 to ensure the downward pressure on the frustum 41 .

[0043] As the rotating rod 2 continues to move downward, the end of the hinged rod 45 located outside the rotating rod 2 is abutted by the upper edge of the threaded sleeve 30. Under the action of the lever principle, the end of the hinged rod 45 located outside the rotating rod 2 rises, while the end located inside the rotating rod 2 falls, thereby achieving downward pressure on the conversion rod 4.

[0044] In some further embodiments, a sliding hole 21 is provided on the side wall of the rotating rod 2, a limiting rod 46 is slidably arranged in the sliding hole 21, a limiting handle 47 is provided at one end of the limiting rod 46 located inside the rotating rod 2, a second spring 460 is provided on the limiting rod 46, one end of the second spring 460 abuts against the limiting handle 47, and the other end abuts against the inner wall of the rotating rod 2.

[0045] Reference Fig. 9 and Fig.10 The sliding hole 21 is set through the side wall of the rotating rod 2, and the limiting rod 46 is slidably set in the sliding hole 21. A limiting handle 47 is set at one end of the limiting rod 46 located inside the rotating rod 2. A second spring 460 is sleeved on the limiting rod 46. The second spring 460 is located between the limiting rod 46 and the side wall of the rotating rod 2, and is used to make the limiting rod 46 have a tendency to move toward the inside of the rotating rod 2, so as to avoid extending out of the rotating rod 2 to form interference when the entire rotating rod 2 completely enters the ground.

[0046] It should be noted that one end of the second spring 460 can be connected to the limiting handle 47 , and the other end is connected to the inner wall of the rotating rod 2 , thereby preventing the limiting rod 46 from directly detaching from the sliding hole 21 under the action of the second spring 460 .

[0047] In some further embodiments, a control gap is provided between the monitoring component 11 and the support platform 1 , and the top of the conversion rod 4 passes through the support platform 1 and is located in the control gap; a shift rod 40 is vertically provided on the top of the conversion rod 4 .

[0048] Reference Figure 1 and Figure 8 The control gap provides a certain clearance for the up and down movement of the conversion rod 4, and also provides a certain space for the hands of the staff to realize the movement of the lever 40.

[0049] It should be noted that the conversion rod 4 will not continue to rise under the action of the first spring 44, and will eventually be restricted by the top wall of the control gap.

[0050] In some further embodiments, a first bevel gear 12 is sleeved on the outer peripheral wall of the rotating rod 2, a rotating shaft 131 is rotatably provided on the bottom side of the support platform 1, a second bevel gear 13 is provided at one end of the rotating shaft 131, and the first bevel gear 12 and the second bevel gear 13 are meshed with each other; a first gear 130 is provided at the other end of the rotating shaft 131, a rack 31 is vertically provided on the base 3, and a through hole is provided on the support platform 1 along the up and down directions corresponding to the first gear 130, and the first gear 130 and the rack 31 are meshed with each other.

[0051] Reference Figure 1 , Figure 2 and Fig.12 The first bevel gear 12 rotates synchronously with the rotating rod 2, the rotating shaft 131 is located on the bottom side of the support platform 1, the second bevel gear 13 set at one end thereof is meshed with the first bevel gear 12, and the first gear 130 set at the other end is meshed with the rack 31 set on the base 3.

[0052] When the support platform 1 descends, the first gear 130 and the rack 31 mesh with each other. Since the rack 31 remains stationary, the first gear 130 rotates, which in turn drives the second bevel gear 13 to rotate, and finally drives the first bevel gear 12 to rotate. Since the first bevel gear 12 is arranged on the rotating rod 2, when the support platform 1 descends, the rotating rod 2 actively rotates, and the rotation is not achieved solely by the threaded sleeve 30. Since the rotating rod 2 actively rotates, compared with the traditional motion state of converting a vertical downward force into a rotation, the downward force applied by the staff to the support platform 1 can be better reduced, thereby ensuring that the rotating rod 2 can be screwed into the ground more conveniently, simply and efficiently.

[0053] In addition, a through hole is provided on the support platform 1 to allow the rack 31 to be positioned.

[0054] It should be pointed out in particular that, under the action of the first bevel gear 12, the second bevel gear 13, the first gear 130 and the rack 31, when the support platform 1 moves upward under the action of the staff, that is, when the rotating rod 2 is pulled out, the rotating rod 2 will still be gradually rotated out of the ground in an inverted manner, so that it actively rotates out of the ground, which can save more effort than the traditional device that rigidly converts the vertical upward force into rotational force.

[0055] In some further embodiments, a rotating shaft 32 is hingedly provided on the base 3, and two groups of rotating shafts 32 are arranged at intervals, and each group of rotating shafts 32 is provided with two rotating wheels 33 arranged axially at intervals along the rotating shaft 32; a torsion spring 38 is sleeved on the rotating shaft 32, one end of the torsion spring 38 is connected to the rotating wheel 33, and the other end is connected to the base 3; a pressing handle 34 is provided on the rotating shaft 32, and a sliding column 340 is provided on the pressing handle 34; it also includes a connecting rod 35, and a narrow groove 36 is provided on the connecting rod 35, and the corresponding sliding columns 340 on the two groups of rotating shafts 32 are both located in the narrow groove 36 and slidably cooperate with the narrow groove 36.

[0056] Reference Figure 6 , Figure 7 and Fig.13 There are two rotating shafts 32, which are respectively located on a set of opposite sides of the base 3. The rotating shafts 32 are provided with rotating wheels 33, which are used for ground contact to facilitate the movement of the entire device.

[0057] The end of the rotating shaft 32 is hinged to the base 3 , and the rotating wheel 33 rotates synchronously with the rotating shaft 32 .

[0058] A pressing handle 34 is disposed on the rotating shaft 32 . A sliding post 340 is disposed at one end of the pressing handle 34 away from the rotating shaft 32 . The sliding post 340 and the pressing handle 34 are perpendicular to each other and parallel to the rotating shaft 32 .

[0059] A narrow slot 36 is provided on the connecting rod 35 , and the sliding posts 340 on the two corresponding pressing handles 34 on the two sets of rotating shafts 32 are both sleeved in the narrow slot 36 in one connecting rod 35 , and the sliding posts 340 are slidably matched with the narrow slot 36 .

[0060] In some other embodiments, two pressing handles 34 are arranged on each rotating shaft 32 at intervals along the axial direction of the rotating shaft 32; wherein, the corresponding sliding columns 340 on a group of rotating shafts 32 located on one side of the rack 31 are disconnected in the middle to make way for the rack 31, while the corresponding sliding columns 340 on a group of rotating shafts 32 located on the opposite side of the rack 31 are completely arranged; for the disconnected sliding columns 340, in order to prevent the connecting rod 35 from falling off, a stop handle 341 is specially arranged at the break to limit the cooperation between the connecting rod 35 and the sliding column 340.

[0061] The stop handle 341 may be a combination of a screw and a washer.

[0062] Under the action of the torsion spring 38 , the rotating wheel 33 always has a tendency to rotate toward the bottom of the base 3 , and during the rotation process, it is limited by the cooperation between the sliding column 340 and the narrow slot 36 .

[0063] The torsion spring 38 can ensure that the rotating wheel 33 can support the entire device when the entire device moves normally, thereby preventing the base 3 from contacting the ground.

[0064] In some further embodiments, an anti-slip plug-in column 37 is provided at the bottom of the base 3 .

[0065] The anti-skid plug-in column 37 is mainly used to increase the friction between the base 3 and the ground during the descending process of the support platform 1 to prevent the base 3 from moving.

[0066] In some further embodiments, a support frame 10 is provided on the top of the support platform 1 , and the monitoring component 11 is arranged on the support frame 10 .

[0067] The support frame 10 is mainly used to form a control gap and also to facilitate the installation of the monitoring component 11.

[0068] Working principle: When the pre-installation position is reached, the staff can press down the support platform 1 or step on it. When the downward force is applied to the support platform 1, the force on the torsion spring 38 can no longer support the entire device, and it rotates. At this time, the anti-slip plug-in column 37 under the base 3 is inserted into the ground to form a preliminary positioning of the base 3. After that, the support platform 1 continues to move downward, and the first gear 130 set on the bottom wall of the support platform 1 meshes and rotates with the rack 31 fixed on the base 3, thereby driving the first bevel gear 12 to rotate, and then driving the rotating rod 2 to rotate, so that active rotation makes it easier to enter the ground. When the support platform 1 drops to a certain extent, the support The platform 1 presses down the connecting rod 35, causing the pressing handle 34 to rotate, thereby completely breaking away from the contact between the rotating wheel 33 and the ground, to ensure that in the final state the base 3 is in full contact with the ground rather than the rotating wheel 33 being in contact with the ground; as the support platform 1 continues to descend, the end of the hinged rod 45 on the opening 20 located outside the rotating rod 2 touches the upper edge of the threaded sleeve 30, and then the end of the hinged rod 45 located inside the rotating rod 2 presses down the upper end surface of the cone 41, causing the conversion rod 4 to move downward, at which time the side surface of the cone 41 gradually abuts against the limiting rod 46, causing the limiting rod 46 to extend from the sliding hole 21, thereby forming a self-locking state, and at this time the entire device is fixed.

[0069] It should be noted that when the entire device is in a natural state, the force of the torsion spring 38 makes the pressing handle 34 and the connecting rod 35 in a stable static state. Since the pressing handles 34 on both sides have a tendency to move away from each other under the action of the torsion spring 38, the connecting rod 35 is tightened and is in a stable state; thereafter, a downward force is first applied to the support platform 1. When the force gradually increases, the force of the torsion spring 38 can no longer maintain the original state, but makes the pressing handles 34 on both sides move closer to each other (the rotating upper ends move closer to each other). At this time, the sliding column 340 will slide in the narrow groove 36 of the connecting rod 35; thereafter, the support platform 1 presses down the connecting rod 35. At this time, the upper side wall inside the narrow groove 36 applies a downward force to the sliding column 340, which is equivalent to the far hinged end of the pressing handle 34 (that is, the end where the sliding column 340 is located) being pressed downward, thereby causing the pressing handles 34 on both sides to rotate toward the middle (that is, toward each other). Please refer to Figure 1 It can be known without a doubt that the pressing handles 34 on both sides are in an inclined state in the initial state. Therefore, when a downward force is applied to the upper end of the pressing handle 34 (the end where the sliding column 340 is set), the pressing handle 34 can always rotate smoothly, and it will not form a kind of self-locking with the connecting rod 35.

[0070] In addition, the force provided by the torsion spring 38 can balance the gravity of the entire device itself without causing the upper ends of the pressure handles 34 on both sides to rotate toward each other (that is, the base 3 will not directly contact the ground), but the force it provides is not enough to balance the force applied by a person to the support platform 1 (of course, including the gravity of the device itself); in actual practice, the pitch of the torsion spring 38 can be relatively large to ensure that it can fully accumulate potential energy without failure under the rotation of the pressure handle 34.

[0071] Moreover, the rotating wheel 33 has a tendency to rotate toward the bottom of the base 3 under the action of the torsion spring 38. Before the support platform 1 contacts, it can keep the pressing handle 34 and the connecting rod 35 in a stable static state, which is not a self-locking state. When the support platform 1 is about to contact the connecting rod 35, the pressing handle 34 is more inclined than the initial state, that is, one end of the sliding column 340 is provided thereon in a state that is extremely easy to rotate under the downward force, thereby further ensuring the smoothness of the entire movement process.

[0072] When it is necessary to pull out the rotating rod 2, the staff can toggle the conversion rod 4 to make the conversion rod 4 rotate so that the limit rod 46 cooperates with the yield groove. When the limit rod 46 is no longer abutted by the abutment portion 410, under the action of the second spring 460, the limit rod 46 retracts into the interior of the rotating rod 2 (not completely entering the interior, a section facing the outside of the rotating rod 2 remains in the sliding hole 21 to ensure smooth extension next time). Since the limit rod 46 no longer forms a self-locking for the rotating rod 2, the first spring 44 will drive the conversion rod 4 to rise, and the hinge rod 45 rotates in the opposite direction, thereby driving the rotating rod 2 to move upward. In addition, in this process, the potential energy in the torsion spring 38 will also drive the pressing handle 34 to abut against the bottom wall of the support platform 1, thereby applying more force to the support platform 1 to make it rise. At the same time, every slight rise of the support platform 1 will cause the rotating rod 2 to actively rotate backward under the action of the first gear 130, the rack 31, the first bevel gear 12 and the second bevel gear 13, thereby making it easier to pull out the rotating rod 2.

[0073] When pulled out to a certain extent, the connecting rod 35 and the pressure handle 34 are no longer pressed by the support platform 1, the potential energy of the torsion spring 38 is further released, and the rotating wheel 33 rotates to achieve support with the ground. After that, the staff can appropriately apply an upward force to the support platform 1, so that the rotating rod 2 is completely separated from the ground. After that, the entire device can be pulled or pushed to different observation points.

[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection created by this application.

Claims

1. A surface movement deformation mapping device, characterized in that: include: A support platform (1), a rotating rod (2) and a base (3), wherein the top of the rotating rod (2) is rotatably connected to the support platform (1), and the rotating rod (2) passes through the base (3) and is threadedly engaged with the base (3); a conversion rod (4) is axially slidably provided inside the rotating rod (2), and an abutment portion (410) and a yielding portion (411) are circumferentially spaced on the conversion rod (4); a limit rod (46) is elastically slidably provided on the rotating rod (2), and the conversion rod (4) is rotatably switched between a locked state formed when the abutment portion (410) abuts against the limit rod (46) and an unlocked state formed when the yielding portion (411) yields to the limit rod (46); and a monitoring component (11) is provided on the support platform (1).

2. The ground surface movement deformation mapping device according to claim 1, characterized in that: The conversion rod (4) is provided with a frustum (41); the abutment portion (410) is a side surface of the frustum (41); the clearance portion (411) is a clearance groove, and the clearance groove penetrates the frustum (41) in the up-down direction.

3. The ground surface movement deformation mapping device according to claim 2, characterized in that: A baffle (43) is provided inside the rotating rod (2), and a first spring (44) is sleeved on the conversion rod (4); one end of the first spring (44) abuts against the lower end surface of the cone (41), and the other end abuts against the side of the baffle (43) facing the conversion rod (4).

4. The ground surface movement deformation mapping device according to claim 3, characterized in that: The base (3) is provided with a through opening, and a threaded sleeve (30) is provided on the base (3) corresponding to the through opening, and the outer peripheral wall of the rotating rod (2) is threadedly matched with the threaded sleeve (30); the top side wall of the rotating rod (2) is provided with an opening (20), and a hinged rod (45) is provided on the opening (20), and one end of the hinged rod (45) located inside the rotating rod (2) abuts against the upper end surface of the cone (41), and one end of the hinged rod (45) located outside the rotating rod (2) is used to abut against the end surface of the threaded sleeve (30).

5. The ground surface movement deformation mapping device according to claim 4, characterized in that: A sliding hole (21) is provided on the side wall of the rotating rod (2), the limiting rod (46) is slidably arranged in the sliding hole (21), a limiting handle (47) is provided at one end of the limiting rod (46) located inside the rotating rod (2), a second spring (460) is provided on the limiting rod (46), one end of the second spring (460) abuts against the limiting handle (47), and the other end abuts against the inner wall of the rotating rod (2).

6. The ground surface movement and deformation mapping device according to claim 5, characterized in that: A control gap is provided between the monitoring component (11) and the support platform (1), and the top of the conversion rod (4) passes through the support platform (1) and is located in the control gap; a shift rod (40) is vertically provided on the top of the conversion rod (4).

7. The ground surface movement deformation mapping device according to claim 6, characterized in that: A first bevel gear (12) is sleeved on the outer peripheral wall of the rotating rod (2); a rotating shaft (131) is rotatably provided on the bottom side of the support platform (1); a second bevel gear (13) is provided at one end of the rotating shaft (131); the first bevel gear (12) and the second bevel gear (13) are meshed with each other; a first gear (130) is provided at the other end of the rotating shaft (131); a rack (31) is vertically provided on the base (3); a through hole is provided on the support platform (1) in the up-down direction corresponding to the first gear (130); the first gear (130) and the rack (31) are meshed with each other.

8. The ground surface movement deformation mapping device according to claim 7, characterized in that: The base (3) is hingedly provided with a rotating shaft (32), and two groups of the rotating shafts (32) are arranged at intervals, and each group of the rotating shafts (32) is provided with two rotating wheels (33) arranged at intervals along the axial direction of the rotating shaft (32); a torsion spring (38) is sleeved on the rotating shaft (32), one end of the torsion spring (38) is connected to the rotating wheel (33), and the other end is connected to the base (3); the rotating shaft (32) is provided with a pressing handle (34), and the pressing handle (34) is provided with a sliding column (340); and further comprises a connecting rod (35), and the connecting rod (35) is provided with a narrow slot (36), and the corresponding sliding columns (340) on the two groups of the rotating shafts (32) are both located in the narrow slot (36) and slidably matched with the narrow slot (36).

9. The ground surface movement deformation mapping device according to claim 8, characterized in that: An anti-slip plug-in column (37) is provided at the bottom of the base (3).

10. The ground surface movement deformation mapping device according to claim 9, characterized in that: A support frame (10) is provided on the top of the support platform (1), and the monitoring component (11) is arranged on the support frame (10).

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