Vertical dependent variable observation equipment for earthquake monitoring

Abstract

The invention discloses a vertical dependent variable observation device for earthquake monitoring, and relates to the technical field of earthquake monitoring, the vertical dependent variable observation device comprises a supporting frame arranged on the ground, a plurality of fixing rods, a driving assembly, an auxiliary assembly, a connecting piece and a cleaning assembly, a measuring instrument is arranged in the supporting frame, the bottom of each fixing rod is connected with the measuring instrument, and the fixing rods are arranged on the supporting frame. The fixing rod is combined and fixed through a threaded column and a threaded groove which are arranged at the two ends, a fixed supporting plate and a movable supporting plate are arranged in the supporting frame, first abutting blocks are symmetrically arranged on the outer side of the fixed supporting plate, second abutting blocks are symmetrically arranged on the outer side of the movable supporting plate, and a first sliding block and a second sliding block which are provided with outer teeth are arranged on the outer side of the movable supporting plate. According to the device, a measuring instrument is fixed through the fixing rods, the measuring instrument is driven by the fixing rods to enter a pit hole, the measuring instrument can be prevented from colliding with the inner wall of the pit hole in the process of being placed into the pit hole, and the measuring instrument is placed into the deeper position of the pit hole step by step through mutual combination of the multiple fixing rods.

Description

Technical Field

[0001] The invention relates to the technical field of earthquake monitoring, and in particular to a vertical strain observation device for earthquake monitoring. Background Art

[0002] The acquisition of vertical strain will provide basic analytical data for earthquake prediction research and geodynamic research. Vertical observation requires drilling a vertical deep hole underground, placing instruments in the deep hole, and monitoring the vertical crust in real time.

[0003] When placing a measuring instrument into a deep hole, it is usually suspended into the pit by a rope. However, the rope itself is made of a soft material and will swing when subjected to a small external force. At this time, the suspended measuring instrument will collide with the inner wall of the pit and contact the soil on the inner wall of the pit, causing the soil to cover and enter the precision parts inside the measuring instrument, affecting the accuracy of the precision parts. If the collision is too severe, the precision parts inside the measuring instrument will be damaged, resulting in greater malfunctions, which in turn affects the measurement accuracy of the measuring instrument. For this reason, we propose a vertical strain observation device for earthquake monitoring. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical strain observation device for earthquake monitoring to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical strain observation device for earthquake monitoring, comprising a support frame placed on the ground, a fixed rod, a driving assembly, an auxiliary assembly and a cleaning assembly, a measuring instrument is arranged in the support frame, the bottom of the fixed rod is connected to the measuring instrument, a plurality of fixed rods are arranged, and two adjacent fixed rods can be combined and fixed by the cooperation of threaded columns and threaded grooves arranged at both ends of the fixed rods, a fixed support plate is fixed in the support frame, a movable support plate is slidably arranged in the support frame, a mounting groove cooperating with the top of the fixed rod is arranged at the bottom of the movable support plate, a through hole is arranged in the middle of the fixed support plate, a first pressing block is symmetrically arranged on the outer side of the fixed support plate, a second pressing block is symmetrically arranged on the outer side of the movable support plate, a first slider and a second slider are arranged on the outer side of the movable support plate, an adjusting gear for driving the first slider and the second slider to move towards each other is arranged on the top of the movable support plate, an external tooth cooperating with the adjusting gear is arranged on the inner side of the first slider and the second slider, a driving assembly for driving the adjusting gear to rotate is arranged on the outer side of the movable support plate, an auxiliary assembly is arranged in the support frame, and is used to drive the movable support plate to move, and a cleaning assembly is arranged on the outer side of the support frame, and is used to clean dust and dirt adhered to the outer side of the fixed rod taken out from the pit.

[0006] Preferably, the driving assembly includes a driving motor, a mounting frame is fixedly provided on the top of the movable support plate, a rotating shaft is rotatably provided in the mounting frame, the driving motor is fixedly provided on the outside of the mounting frame, the output end of the driving motor is fixed to one end of the rotating shaft, two first bevel gears are fixedly provided on the outside of the rotating shaft, two adjusting gears are provided, and the two adjusting gears are symmetrically arranged on both sides of the mounting groove, a second bevel gear is fixedly provided on the outside of the gear shaft of the adjusting gear, and the second bevel gear is meshingly connected with the first bevel gear.

[0007] Preferably, both the movable support plate and the fixed support plate are provided with sliding holes, the first pressure block is slidably arranged in the sliding hole of the fixed support plate, a limit rod is fixedly arranged on the top of the first pressure block, the top of the limit rod passes through the sliding hole of the movable support plate, the top of the limit rod is slidably connected to the top of the support frame, the sliding holes provided on the movable support plate are symmetrically distributed, the first slider and the second slider are respectively slidably arranged in two groups of symmetrically distributed sliding holes, the limit rod passes through the first slider and is slidably connected to the first slider, the second pressure block is arranged at the bottom of the movable support plate, and the second pressure block is fixed to the second slider.

[0008] Preferably, the two first bevel gears are respectively arranged on the outsides of the two second bevel gears in sequence.

[0009] Preferably, a rubber pad is fixedly provided on one end of the first pressing block and the second pressing block close to the mounting groove.

[0010] Preferably, the auxiliary component includes an auxiliary motor, which is fixed on the top of the support frame. Two screws are symmetrically arranged in the support frame. The screws are rotatably connected to the support frame, and the screws are threadedly connected to the movable support plate. A driven gear is fixed on the top of the screw, and a driving gear is fixed on the output end of the auxiliary motor. The driving gear is meshingly connected to the driven gear.

[0011] Preferably, the cleaning assembly includes a cleaning ring, a fixing frame is fixedly provided inside the supporting frame, the cleaning ring is fixedly provided in an opening provided in the middle part of the fixing frame, a water pipe is fixedly provided inside the cleaning ring, a nozzle is fixedly provided on the outside of the water pipe, the nozzle is provided inside the cleaning ring, a pump head is fixedly provided on the outside of the fixing frame, the water outlet end of the pump head is fixed to the water inlet of the water pipe, a water inlet pipe is fixedly provided on the water inlet end of the pump head, a water tank is fixedly provided on the end of the water inlet pipe away from the pump head, an auxiliary frame is fixedly provided on the inner bottom of the supporting frame, and the water tank is fixedly provided on the top of the auxiliary frame.

[0012] Preferably, the connecting piece includes a mounting tube, a support rod is slidably provided at the bottom of the mounting tube, the bottom of the support rod is threadedly matched with the thread of the fixing seat set at the top of the measuring instrument through a thread, the top of the mounting tube is threadedly matched with the threaded column set at the bottom of the fixing rod through a thread, the support rod passes through the bottom of the mounting tube, and a rotating frame is symmetrically provided on the outside of the end of the support rod located inside the mounting tube, a resist rod is rotatably provided inside the rotating frame, openings are evenly provided on the outside of the mounting tube, a resist plate is rotatably provided on a fixed shaft set on the lower side of the opening, a movable frame is fixedly provided on the inside of the resist plate, one end of the resist rod away from the rotating frame is rotatably connected to the movable frame, a limiting frame is fixedly provided in the mounting tube, a long hole is provided in the resist rod, the limiting frame passes through the long hole and is slidably connected to the resist rod through the long hole.

[0013] Preferably, the cleaning ring is arranged below the fixed support plate.

[0014] Preferably, a storage rack is fixedly provided on the outer side of the auxiliary frame and the outer side of the support frame.

[0015] Preferably, the bottom thread of the support frame is provided with symmetrically distributed threaded rods, the bottom ends of the threaded rods are rotatably provided with supporting feet, and the top ends of the threaded rods are fixedly provided with a turning handle.

[0016] Preferably, symmetrically distributed universal wheels are fixedly provided at the bottom of the support frame.

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

[0018] 1. The present invention fixes the measuring instrument by a fixing rod, and drives the measuring instrument into the pit by the fixing rod, which can effectively prevent the measuring instrument from colliding with the inner wall of the pit during the process of being placed in the pit. By combining multiple fixing rods, the measuring instrument can be placed deeper into the pit step by step;

[0019] 2. When a fixed rod is inserted deep into a hole and another fixed rod needs to be connected, the first slider and the second slider are driven to move simultaneously by adjusting the gear, and the second pressing block on the movable support plate is separated from the fixed rod, and the first pressing block on the fixed support plate is pressed against the top of the fixed rod in the hole. Then, the movable support plate is driven upward by the screw rod, and the fixed rod to be connected is connected to the top of the fixed rod in the hole. The adjusting gear is rotated in the opposite direction to separate the first pressing block from the fixed rod, and the second pressing block is pressed against the top of the installed fixed rod. After that, the fixed rod can be further inserted into the hole by moving the movable support plate downward, thereby placing the measuring instrument deeper into the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0022] Figure 3This is a schematic diagram of the top structure of the fixed support plate and the movable support plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the bottom structure of the movable support plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the relative positions of the first pressing block and the fixing rod when the second pressing block of the present invention clamps the fixing rod;

[0026] Figure 7 This is a schematic diagram of the relative position structure of the cleaning assembly and the fixing rod of the present invention;

[0027] Figure 8 This is a schematic diagram of the cleaning component structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the connection between the connecting piece of the present invention, the measuring instrument and the fixing rod;

[0029] Fig.10 It is a schematic cross-sectional view of the structure of the mounting tube portion of the present invention.

[0030] In the figure: 1-support frame; 2-measuring instrument; 3-fixed rod; 4-fixed support plate; 5-movable support plate; 6-mounting slot; 7-through hole; 8-first pressing block; 9-second pressing block; 10-first slider; 11-second slider; 12-adjusting gear; 13-external gear; 14-driving assembly; 15-auxiliary assembly; 16-cleaning assembly; 17-driving motor; 18-mounting frame; 19-rotating shaft; 20-first bevel gear; 21-second bevel gear; 22-sliding hole; 23-limiting rod; 24-rubber pad; 25-auxiliary motor; 26-screw; 27-driven gear; 28-driving gear; 29-cleaning ring; 30-fixed frame; 31-water pipe; 32-sprinkler; 33-pump head; 34-water inlet pipe; 35-water tank; 36-auxiliary frame; 37-storage rack; 38-threaded rod; 39-support foot; 40-turn handle; 41-connector; 42-mounting cylinder; 43-support rod; 44-rotating frame; 45-retaining rod; 46-opening; 47-retaining plate; 48-movable frame; 49-limiting frame; 50-long hole; 51-compression spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example:

[0033] See also Figure 1-Figure 10 , a vertical strain observation device for earthquake monitoring is shown in the figure, comprising a support frame 1 placed on the ground, a fixed rod 3, a driving component 14, an auxiliary component 15 and a cleaning component 16, a measuring instrument 2 is arranged in the support frame 1, and the bottom of the fixed rod 3 is connected to the measuring instrument 2, and the measuring instrument 2 can measure the vertical strain at a specified depth;

[0034] There are multiple fixing rods 3, and two adjacent fixing rods 3 can be combined and fixed by the cooperation of the threaded columns and threaded grooves provided at both ends of the fixing rods 3. After one fixing rod 3 goes deep into the pit, and the measuring instrument 2 has not reached the specified depth, another fixing rod 3 can be threadedly combined on the fixing rod 3 in the pit, so that the measuring instrument 2 can be sent deeper into the pit until the measuring instrument 2 reaches the specified depth.

[0035] A fixed support plate 4 is fixedly arranged in the support frame 1, and a movable support plate 5 is slidably arranged in the support frame 1. A mounting groove 6 matching the top of the fixing rod 3 is arranged at the bottom of the movable support plate 5. A through hole 7 is arranged in the middle of the fixed support plate 4, and the through hole 7 is used for the fixing rod 3 to pass through. A first pressing block 8 is symmetrically arranged on the outer side of the fixed support plate 4, and a second pressing block 9 is symmetrically arranged on the outer side of the movable support plate 5. The pressing directions of the first pressing block 8 and the second pressing block 9 both pass through the axis of the through hole 7 to ensure that the inner-limited fixing rod 3 is in the center of the through hole 7, thereby ensuring that the measuring instrument 2 is in the center of the pit and avoids contact with the inner wall of the pit. A rubber pad 24 is fixedly arranged at one end of the first pressing block 8 and the second pressing block 9 close to the mounting groove 6. The rubber pad 24 contacts the outer side of the fixing rod 3, which can increase the clamping force area and improve the stability of the fixing rod 3 when being clamped by the first pressing block 8 or the second pressing block 9;

[0036] The movable support plate 5 is provided with a first slider 10 and a second slider 11 on the outside, and an adjusting gear 12 for driving the first slider 10 and the second slider 11 to move in opposite directions is provided on the top of the movable support plate 5. The first slider 10 and the second slider 11 are respectively provided on both sides of the adjusting gear 12, so as to prevent the first slider 10 and the second slider 11 from moving toward the center of the through hole 7 at the same time. The first slider 10 and the second slider 11 are provided with external teeth 13 cooperating with the adjusting gear 12 on the inside, and the movable support plate 5 and the fixed support plate 4 are both provided with sliding holes 22. The first pressing block 8 is provided with a sliding hole 23. A limiting rod 23 is fixedly arranged on the top of the first pressing block 8 in the sliding hole 22 of the fixed support plate 4, and the top of the limiting rod 23 passes through the sliding hole 22 of the movable support plate 5. The top of the limiting rod 23 is slidably connected to the top of the support frame 1. The sliding holes 22 arranged on the movable support plate 5 are symmetrically distributed. The first slider 10 and the second slider 11 are respectively slidably arranged in two groups of symmetrically distributed sliding holes 22. The limiting rod 23 passes through the first slider 10 and is slidably connected to the first slider 10. The second pressing block 9 is arranged at the bottom of the movable support plate 5, and the second pressing block 9 is fixed to the second slider 11.

[0037] A driving assembly 14 for driving the adjusting gear 12 to rotate is arranged on the outside of the movable support plate 5, an auxiliary assembly 15 is arranged in the support frame 1, and is used to drive the movable support plate 5 to move, and a cleaning assembly 16 is arranged on the outside of the support frame 1, and is used to clean dust and dirt adhered to the outside of the fixing rod 3 taken out from the pit.

[0038] Some implementation methods of the present application are described in detail below with reference to the accompanying drawings:

[0039] See also Figure 1-Figure 10 In this embodiment: the measuring instrument 2 is fixed by the fixing rod 3, and the measuring instrument 2 is driven into the pit by the fixing rod 3, which can effectively prevent the measuring instrument 2 from colliding with the inner wall of the pit during the process of being placed into the pit. By combining multiple fixing rods 3, the measuring instrument 2 can be placed deeper into the pit step by step.

[0040] Among them, the driving assembly 14 includes a driving motor 17, a mounting frame 18 is fixedly provided on the top of the movable support plate 5, a rotating shaft 19 is rotatably provided in the mounting frame 18, the driving motor 17 is fixedly provided on the outside of the mounting frame 18, and the output end of the driving motor 17 is fixed to one end of the rotating shaft 19, and two first bevel gears 20 are fixedly provided on the outside of the rotating shaft 19, and there are two adjusting gears 12, and the two adjusting gears 12 are symmetrically arranged on both sides of the mounting groove 6, and a second bevel gear 21 is fixedly provided on the outside of the gear shaft of the adjusting gear 12, and the second bevel gear 21 is meshed and connected with the first bevel gear 20, and the two first bevel gears 20 are respectively arranged on the outside of the two second bevel gears 21 in sequence. At this time, the two first bevel gears 20 face the same direction, and the two adjusting gears 12 can be driven to rotate in the same direction by the rotation of the rotating shaft 19, thereby driving the two symmetrically arranged first blocks or second blocks to clamp the fixed rod 3, and in the process of the fixed rod 3 going deep into the pit, the first block or the second block will not be clamped on the outside of the fixed rod 3 at the same time, thereby ensuring the smooth movement of the fixed rod 3.

[0041] The auxiliary component 15 includes an auxiliary motor 25, which is fixed on the top of the support frame 1. Two screws 26 are symmetrically arranged in the support frame 1. The screws 26 are rotatably connected to the support frame 1. The screws 26 are threadedly connected to the movable support plate 5. A driven gear 27 is fixed on the top of the screw 26. A driving gear 28 is fixed on the output end of the auxiliary motor 25. The driving gear 28 is meshed and connected with the driven gear 27.

[0042] The operation method of placing the measuring instrument 2 into the pit in the device of the technical solution is as follows:

[0043] First, fix the measuring instrument 2 at the bottom end of the fixing rod 3, place the top end of the fixing rod 3 in the mounting groove 6 at the bottom of the movable support plate 5, drive the rotating shaft 19 to rotate by the driving motor 17, and then drive the two adjusting gears 12 to rotate in the same direction through the meshing of the first bevel gear 20 and the second bevel gear 21, so that the first slider 10 and the second slider 11 connected to the adjusting gear 12 are driven to move in opposite directions through the meshing of the adjusting gear 12 and the external tooth 13, and at this time, the second slider 11 drives the second pressing block 9 to move toward the fixing rod 3 until the fixing rod 3 is clamped by the rubber pad 24, and the top end of the fixing rod 3 is fixed in the mounting groove 6;

[0044] Then, the auxiliary motor 25 drives the driving gear 28 to rotate, and then the two screws 26 are driven to rotate at the same time through the meshing of the driving gear 28 and the two driven gears 27, so that the movable support plate 5 is driven downward by the thread action of the screw 26, and the fixed rod 3 is pushed into the pit, so that the measuring instrument 2 is placed in the pit;

[0045] When the movable support plate 5 moves to be about to contact with the fixed support plate 4, if the measuring instrument 2 has not reached the specified depth at this time, the driving motor 17 is reversed to drive the rotating shaft 19 to rotate in the opposite direction, thereby driving the two adjusting gears 12 to reverse through the engagement of the first bevel gear 20 and the second bevel gear 21, thereby driving the two first pressing blocks 8 to move toward the fixed rod 3 through the first slider 10 and the limit rod 23, and driving the second pressing block 9 to leave the fixed rod 3 through the second slider 11. When the rubber pad 24 of the first pressing block 8 completely clamps the fixed rod 3, the rubber pad 24 of the second pressing block 9 no longer contacts the fixed rod 3. At this time, the screw 26 is driven to rotate by the auxiliary motor 25 to drive the movable support plate 5 to move upward. When the movable support plate 5 moves up to a suitable height, the second fixed rod 3 is assembled at the top of the fixed rod 3 in the pit, and then the above steps are repeated until the measuring instrument 2 is placed into the specified depth in the pit.

[0046] In the implementation of the present technical solution, when the movable support plate 5 drives the fixed rod 3 to go deeper into the pit, the rubber pad 24 of the first pressure block 8 does not contact the fixed rod 3 and does not interfere with the normal movement of the fixed rod 3. When adding the fixed rod 3, when the first pressure block 8 completely clamps the fixed rod 3, the rubber pad 24 of the second pressure block 9 just leaves the outside of the fixed rod 3, which can prevent the fixed rod 3 from falling accidentally in the pit, and at the same time facilitates the movable support plate 5 to rise along with the screw 26, providing convenience for the subsequent assembly of the fixed rod 3.

[0047] In some embodiments of the present technical solution, Figure 7 and Figure 8 As shown, the cleaning assembly 16 includes a cleaning ring 29, a fixing frame 30 is fixedly provided inside the support frame 1, the cleaning ring 29 is fixedly provided in an opening provided in the middle part of the fixing frame 30, a water pipe 31 is fixedly provided inside the cleaning ring 29, a nozzle 32 is fixedly provided on the outside of the water pipe 31, and the nozzle 32 is provided inside the cleaning ring 29. Furthermore, the cleaning ring 29 is provided below the fixed support plate 4 to prevent water sprayed from the nozzle 32 from falling on the fixed support plate 4 and making subsequent cleaning inconvenient. A pump head 33 is fixedly provided on the outside of the fixing frame 30, the water outlet end of the pump head 33 is fixed to the water inlet of the water pipe 31, a water inlet pipe 34 is fixedly provided at the water inlet end of the pump head 33, a water tank 35 is fixedly provided at the end of the water inlet pipe 34 away from the pump head 33, an auxiliary frame 36 is fixedly provided at the bottom of the inner side of the support frame 1, and the water tank 35 is fixedly provided on the top of the auxiliary frame 36.

[0048] When the fixing rod 3 is recovered, the fixing rod 3 is pulled out of the pit step by step. At this time, the water in the water tank 35 is sucked into the water inlet pipe 34 through the pump head 33, and the water enters the nozzle 32 through the water pipe 31 and is sprayed out. The water is sprayed on the outside of the fixing rod 3, which can wash away the dirt and dust adhered to the outside of the fixing rod 3, so as to prevent the dirt on the fixing rod 3 from drying up after the fixing rod 3 is left for a period of time without being cleaned, thereby increasing the difficulty of cleaning.

[0049] In some embodiments of the present technical solution, Figure 1 and Figure 7 As shown, a storage rack 37 is fixedly provided on the outside of the auxiliary rack 36 and the outside of the support rack 1;

[0050] The storage rack 37 can store the fixing rod 3 in the storage rack 37, and the fixing rod 3 and the device can be placed together for easy use.

[0051] In some embodiments of the present technical solution, Fig. 9 and Fig.10 As shown, the connecting member 41 includes a mounting tube 42, a support rod 43 is slidably provided at the bottom of the mounting tube 42, the bottom of the support rod 43 is threadedly matched with the fixing seat threadedly provided at the top of the measuring instrument 2, the top of the mounting tube 42 is threadedly matched with the threaded column threadedly provided at the bottom of the fixing rod 3, the support rod 43 passes through the bottom of the mounting tube 42, a rotating frame 44 is symmetrically provided on the outer side of the end of the support rod 43 located inside the mounting tube 42, a stop rod 45 is rotatably provided inside the rotating frame 44, openings 46 are evenly provided on the outer side of the mounting tube 42, a stop plate 47 is rotatably provided on the fixed shaft provided at the lower side of the opening 46, a movable frame 48 is fixedly provided on the inner side of the stop plate 47, and one end of the stop rod 45 away from the rotating frame 44 is rotatably connected to the movable frame 48, a limiting frame 49 is fixedly provided in the mounting tube 42, a long hole 50 is provided in the stop rod 45, the limiting frame 49 passes through the long hole 50 and is slidably connected to the stop rod 45 through the long hole 50;

[0052] The principle of the connecting piece 41 fixing the measuring instrument 2 at the bottom of the pit: when the measuring instrument 2 is transported to the bottom of the pit, as the fixing rod 3 continues to push, the measuring instrument no longer moves, and the fixing rod 3 drives the mounting tube 42 to slide toward the measuring instrument 2 on the support rod 43. At this time, the support rod 43 and the mounting tube 42 produce relative displacement, and one end of the support rod 43 located in the mounting tube 42 gradually approaches the top of the mounting tube 42. During the upward movement of the support rod 43, the rotating frame 44 on the support rod 43 gradually approaches the limit frame 49 , so that the support rod 43 pushes the push rod 45 to slide on the limit frame 49 through the rotating frame 44, and then the other end of the push rod 45 presses the movable end of the push plate 47 out of the opening 46 to the outside of the installation tube 42, so that the push plate 47 is opened from the opening 46 of the installation tube 42 until the movable end of the push plate 47 is against the inner wall of the pit, thereby ensuring that the measuring instrument 2 is in the center of the pit when it is installed, and preventing the measuring instrument 2 from accidentally shaking due to external reasons such as earthquakes after being placed in the pit and colliding with the inner wall of the pit;

[0053] Further, such as Fig.10 As shown, a compression spring 51 is fixedly provided at one end of the support rod 43 located in the installation tube 42. The compression spring 51 is used to accumulate the potential energy generated by the relative displacement of the support rod 43 and the installation tube 42, so that the support plate 47 can be stored in the opening 46 when the device is subsequently pulled out of the pit.

[0054] In some embodiments of the present technical solution, in order to facilitate the transportation of the device, such as Figure 2 As shown, the bottom of the support frame 1 is fixed with symmetrically distributed universal wheels. Further, in order to support and fix the device after the device is moved to a specified position, as shown in FIG. Figure 1 As shown, the bottom thread of the support frame 1 is provided with symmetrically distributed threaded rods 38, the bottom end of the threaded rod 38 is rotatably provided with a support foot 39, and the top of the threaded rod 38 is fixedly provided with a handle 40. The threaded rod 38 can be rotated at the bottom of the support frame 1 by rotating the handle 40, driving the support foot 39 away from the bottom of the support frame 1, thereby lifting the universal wheel to a position that is not in contact with the ground, thereby preventing the device from accidentally moving with the universal wheel when it is placed, and fixing the position of the device.

[0055] In some embodiments of the present technical solution, the fixed frame 30 can be slidably arranged in the support frame 1, and an auxiliary screw is arranged in the support frame 1 to drive the movement of the fixed frame 30. At the same time, the auxiliary screw is driven to rotate by an external motor arranged separately, so that the fixed frame 30, the water pipe 31 and the nozzle 32 can be driven to move up and down on the outside of the fixed rod 3, so that the nozzle 32 repeatedly rinses the outside of the fixed rod 3, thereby improving the cleaning effect.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical strain observation device for earthquake monitoring, comprising a support frame (1) placed on the ground, wherein a measuring instrument (2) is arranged inside the support frame (1); It is characterized in that Also includes: A fixing rod (3), the bottom of which is connected to the measuring instrument (2), a plurality of fixing rods (3) are provided, and two adjacent fixing rods (3) can be combined and fixed by the cooperation of the threaded columns and threaded grooves provided at both ends of the fixing rods (3), a fixed support plate (4) is fixedly provided in the support frame (1), a movable support plate (5) is slidably provided in the support frame (1), a mounting groove (6) which cooperates with the top of the fixing rod (3) is provided at the bottom of the movable support plate (5), and a through hole (6) is provided in the middle of the fixed support plate (4) 7), a first pressing block (8) is symmetrically provided on the outer side of the fixed support plate (4), a second pressing block (9) is symmetrically provided on the outer side of the movable support plate (5), a first sliding block (10) and a second sliding block (11) are provided on the outer side of the movable support plate (5), an adjusting gear (12) is provided on the top of the movable support plate (5) for driving the first sliding block (10) and the second sliding block (11) to move in opposite directions, and external teeth (13) cooperating with the adjusting gear (12) are provided on the inner sides of the first sliding block (10) and the second sliding block (11); A driving assembly (14), used for driving the adjusting gear (12) to rotate, the driving assembly (14) being arranged on the outside of the movable supporting plate (5); An auxiliary component (15), the auxiliary component (15) being arranged in the support frame (1) and being used for driving the movable support plate (5) to move; A cleaning assembly (16), the cleaning assembly (16) being arranged on the outside of the support frame (1) and being used to clean dust and dirt adhering to the outside of the fixing rod (3) taken out from the pit; A connecting piece (41) is used to ensure that the measuring instrument (2) is located at the center of the pit when placed in the pit. The connecting piece (41) is arranged at the connection between the fixing rod (3) and the measuring instrument (2).

2. The vertical strain observation device for earthquake monitoring according to claim 1, characterized in that: The driving assembly (14) comprises a driving motor (17), a mounting frame (18) is fixedly provided on the top of the movable support plate (5), a rotating shaft (19) is rotatably provided inside the mounting frame (18), the driving motor (17) is fixedly provided on the outside of the mounting frame (18), the output end of the driving motor (17) is fixed to one end of the rotating shaft (19), two first bevel gears (20) are fixedly provided on the outside of the rotating shaft (19), two adjusting gears (12) are provided, the two adjusting gears (12) are symmetrically arranged on both sides of the mounting groove (6), a second bevel gear (21) is fixedly provided on the outside of the gear shaft of the adjusting gear (12), and the second bevel gear (21) is meshingly connected with the first bevel gear (20).

3. The vertical strain observation device for earthquake monitoring according to claim 2, characterized in that: The movable support plate (5) and the fixed support plate (4) are both provided with sliding holes (22); the first pressing block (8) is slidably arranged in the sliding hole (22) of the fixed support plate (4); a limiting rod (23) is fixedly arranged on the top of the first pressing block (8); the top of the limiting rod (23) passes through the sliding hole (22) of the movable support plate (5); the top of the limiting rod (23) is slidably connected with the top of the support frame (1); the sliding holes (22) arranged on the movable support plate (5) are symmetrically distributed; the first sliding block (10) and the second sliding block (11) are respectively slidably arranged in two groups of symmetrically distributed sliding holes (22); the limiting rod (23) passes through the first sliding block (10) and is slidably connected with the first sliding block (10); the second pressing block (9) is arranged at the bottom of the movable support plate (5); the second pressing block (9) is fixed to the second sliding block (11).

4. The vertical strain observation device for earthquake monitoring according to claim 3, characterized in that: The two first bevel gears (20) are respectively arranged on the outsides of the two second bevel gears (21).

5. The vertical strain observation device for earthquake monitoring according to claim 1, characterized in that: A rubber pad (24) is fixedly provided on one end of the first pressing block (8) and the second pressing block (9) close to the installation groove (6).

6. The vertical strain observation device for earthquake monitoring according to claim 2, characterized in that: The auxiliary component (15) comprises an auxiliary motor (25), the auxiliary motor (25) is fixedly arranged on the top of the support frame (1), two screw rods (26) are symmetrically arranged in the support frame (1), the screw rods (26) are rotatably connected to the support frame (1), the screw rods (26) are threadedly connected to the movable support plate (5), a driven gear (27) is fixedly arranged on the top of the screw rod (26), and a driving gear (28) is fixedly arranged on the output end of the auxiliary motor (25), and the driving gear (28) is meshingly connected with the driven gear (27).

7. The vertical strain observation device for earthquake monitoring according to claim 2, characterized in that: The cleaning assembly (16) comprises a cleaning ring (29), a fixing frame (30) is fixedly arranged inside the support frame (1), the cleaning ring (29) is fixedly arranged in an opening arranged in the middle of the fixing frame (30), the cleaning ring (29) is arranged below the fixed support plate (4), a water pipe (31) is fixedly arranged inside the cleaning ring (29), a nozzle (32) is fixedly arranged outside the water pipe (31), and the nozzle (32) is arranged on the cleaning ring (29). ), a pump head (33) is fixedly provided on the outside of the fixing frame (30), a water outlet end of the pump head (33) is fixed to the water inlet of the water pipe (31), a water inlet pipe (34) is fixedly provided on the water inlet end of the pump head (33), a water tank (35) is fixedly provided on the end of the water inlet pipe (34) away from the pump head (33), an auxiliary frame (36) is fixedly provided on the bottom inside the supporting frame (1), and the water tank (35) is fixedly provided on the top of the auxiliary frame (36).

8. The vertical strain observation device for earthquake monitoring according to claim 7, characterized in that: The connecting member (41) comprises a mounting tube (42), a support rod (43) is slidably provided at the bottom of the mounting tube (42), the bottom of the support rod (43) is threadedly matched with a fixing seat provided at the top of the measuring instrument (2), the top of the mounting tube (42) is threadedly matched with a threaded column provided at the bottom of the fixing rod (3), the support rod (43) passes through the bottom of the mounting tube (42), a rotating frame (44) is symmetrically provided on the outer side of the end of the support rod (43) located inside the mounting tube (42), and a stop rod (45) is rotatably provided inside the rotating frame (44). The outer side of the installation tube (42) is evenly provided with openings (46), a stop plate (47) is rotatably provided on a fixed shaft arranged at the lower side of the opening (46), a movable frame (48) is fixedly provided on the inner side of the stop plate (47), one end of the stop rod (45) away from the rotating frame (44) is rotatably connected to the movable frame (48), a limiting frame (49) is fixedly provided in the installation tube (42), a long hole (50) is provided in the stop rod (45), and the limiting frame (49) passes through the long hole (50) and is slidably connected to the stop rod (45) through the long hole (50).

9. The vertical strain observation device for earthquake monitoring according to claim 7, characterized in that: A storage rack (37) is fixedly provided on the outer side of the auxiliary rack (36) and the outer side of the support rack (1).

10. The vertical strain observation device for earthquake monitoring according to claim 1, characterized in that: The bottom of the support frame (1) is threadedly provided with symmetrically distributed threaded rods (38), the bottom end of the threaded rod (38) is rotatably provided with a support foot (39), and the top end of the threaded rod (38) is fixedly provided with a turning handle (40).

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