Release device for seismograph

Abstract

The utility model provides a release device for a seismograph, which belongs to the technical field of earthquake monitoring and comprises a seismograph body, a separating device and a balancing weight, the separating device comprises a box body, an upper cover, a power supply, an electromagnet and a cam bolt assembly, the electromagnet is arranged at the axis of the bottom wall of the box body, and the power supply is arranged at the top of the electromagnet. Three movable holes are formed in the bottom wall of the box body in the circumferential direction of the axis at equal intervals, a cam plug pin assembly is arranged from the axis of the bottom wall of the box body to the vertical direction of the movable holes, the upper cover is arranged at the top of the box body, and the counterweight device comprises a mounting base, a sink coupling frame and a counterweight block, and three tenon-and-mortise pieces are arranged at the top of the mounting base in the circumferential direction of the axis at equal intervals; a fixing hole is formed in one side, close to the axis of the mounting seat, of the mortise and tenon piece, the mounting seat is arranged at the bottom of the box body, the mortise and tenon piece penetrates through the movable hole to the interior of the box body, and the problem that electric quantity in the seismograph cannot be recycled when the electric quantity is insufficient to support the power of the separation device is solved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake monitoring, in particular to a release device for a seismograph. Background Art

[0002] An ocean bottom seismograph is an instrument that is placed on the seabed to observe earthquakes. When used to observe natural earthquakes, it helps people to get early warnings for earthquakes and tsunamis, and reduces the loss of life and property caused by geological disasters. An ocean bottom seismograph mainly includes the core device, the detachment device, and the counterweight device of the seismograph. Currently, the recovery of the seismograph is mainly done by the staff on the deck sending a signal to the detachment device on the seabed. When the detachment device receives the signal, it releases the counterweight device, and the seismograph can float to the surface of the water through buoyancy and be recovered by the staff. However, when the power in the seismograph is not enough to support the power of the detachment device, it will be impossible to recover it. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a release device for a seismograph, which is used to solve the above problems.

[0004] The utility model is achieved in this way:

[0005] A release device for a seismograph, comprising:

[0006] A seismograph body, wherein air bags are arranged in a circumferential direction on the outer side of the seismograph body, and a controller is arranged inside the seismograph body;

[0007] The disengagement device comprises a box, an upper cover, a power source, an electromagnet and a cam latch assembly, wherein the electromagnet is arranged at the axis of the bottom wall of the box, the power source is arranged at the top of the electromagnet, the bottom wall of the box is provided with three movable holes equally spaced along the circumferential direction of the axis, a cam latch assembly is arranged in the vertical direction from the axis of the bottom wall of the box to the movable holes, the upper cover is arranged at the top of the box, an inner recess is arranged at the top of the upper cover, and the seismograph body is embedded in the inner recess;

[0008] The counterweight device includes a mounting seat, a sinker frame and a counterweight block. The top of the mounting seat is provided with three mortise and tenon pieces equally divided along the circumferential direction of the axis. The mortise and tenon pieces are provided with fixing holes on one side close to the axis of the mounting seat. The mounting seat is arranged at the bottom of the box body. The mortise and tenon pieces pass through the movable holes to the inside of the box body. The sinker frame is arranged at the bottom of the mounting seat. The sinker frame has three support feet. The counterweight block is arranged at the bottom of the support feet.

[0009] In the embodiment of the present practical information, any one of the pins can pass through the adjacent fixing holes.

[0010] In an embodiment of the present practical information, the end of the pin is arc-shaped, and the edge of the fixing hole is chamfered.

[0011] In an embodiment of the present practical information, the cam latch assembly includes a latch, a driving wheel, a driving rod and a return spring, and a driving rod bracket, a hinge bracket and a latch limit bracket are sequentially arranged at the axis of the bottom wall of the box body to the vertical direction of the movable hole, the driving wheel is hinged to the hinge bracket, the latch is hinged to the side of the driving wheel away from the axis, the latch passes through the limiting hole on the latch limit bracket, the driving rod is hinged to the other side of the driving wheel away from the axis, the driving rod passes through the driving rod bracket and a magnetic block is arranged at the end, and a spring limit plate is arranged on the surface of the driving rod close to the driving wheel, and the return spring is arranged between the spring limit plate and the driving rod bracket.

[0012] In the embodiment of the present practical information, the contact surface between the magnetic block and the electromagnet is an arc-shaped surface, and is completely fitted when in contact with the electromagnet.

[0013] In an embodiment of the present practical information, a reinforcing column is provided between the bottom of the power supply and the bottom wall of the box body.

[0014] In an embodiment of the present practical information, a signal output terminal of the controller is communicatively connected with a signal input terminal of the electromagnet.

[0015] The beneficial effects of the utility model are:

[0016] 1. The connection between the counterweight device and the disengagement device is simple, and is fixed by three mortise and tenon pieces and a cam latch assembly, avoiding the risk of getting stuck when disengaging;

[0017] 2. By normally opening the electromagnet, the magnetic force attracts the magnetic block on the cam latch assembly, which drives the latch to be inserted into the fixing hole to complete the fixation. When the battery is exhausted, the electromagnet is disconnected, and the cam latch assembly retracts under the elastic force of the reset spring to complete the separation. The seismograph body floats up and is recovered, solving the problem of the battery being exhausted and unable to be recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a release device for a seismograph provided in an embodiment of the utility model;

[0020] Figure 2 A front view of a disengagement device and a counterweight device provided in an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0022] Figure 4 A schematic diagram of the structure of the disengagement device and the counterweight device provided in the embodiment of the utility model;

[0023] Figure 5 A front view of a cam latch assembly provided in an embodiment of the utility model;

[0024] Figure 6 A top view of a cam latch assembly provided in an embodiment of the utility model.

[0025] In the figure: 10, seismograph body; 11, airbag; 12, controller; 20, release device; 21, box; 211, power supply; 212, electromagnet; 213, reinforcement column; 214, movable hole; 22, upper cover; 221, recessed part; 23, cam latch assembly; 231, latch; 232, driving wheel; 233, driving rod; 2331, spring limit plate; 234, reset spring; 2332, magnetic block; 235, latch limit frame; 236, hinge bracket; 237, driving rod bracket; 30, counterweight device; 31, mounting seat; 311, mortise and tenon piece; 312, fixing hole; 32, sinking coupling frame; 321, bracket foot; 33, counterweight block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1As shown, the utility model provides a release device for a seismograph, including a seismograph body 10, and air bags 11 are arranged circumferentially on the outer side of the seismograph body 10, and the air bags 11 provide buoyancy for the seismograph body 10 to facilitate subsequent recovery work. A controller 12 is arranged inside the seismograph body 10.

[0029] like Figure 3-4 As shown, the disengagement device 20 includes a box body 21, an upper cover 22, a power supply 211, an electromagnet 212 and a cam latch assembly 23. The electromagnet 212 is arranged at the axis of the bottom wall of the box body 21, the power supply 211 is arranged on the top of the electromagnet 212, the bottom wall of the box body 21 is provided with three movable holes 214 equally spaced along the circumferential direction of the axis, the cam latch assembly 23 is arranged in the vertical direction from the axis of the bottom wall of the box body 21 to the movable hole 214, the cam latch assembly 23 is magnetically connected with the electromagnet 212, the upper cover 22 is arranged on the top of the box body 21, the top of the upper cover 22 is provided with an inner recess 221, and the seismograph body 10 is embedded in the inner recess 221;

[0030] like Figure 5-6 As shown, the cam latch assembly 23 includes a latch 231, a driving wheel 232, a driving rod 233 and a reset spring 234. A driving rod bracket 237, a hinge bracket 236 and a latch stop bracket 235 are sequentially arranged in the vertical direction from the axis of the bottom wall of the box body 21 to the movable hole 214. The driving wheel 232 is hinged to the hinge bracket 236. The latch 231 is hinged to the side of the driving wheel 232 away from the axis. The latch 231 passes through the limiting hole on the latch stop bracket 235. The driving rod 233 is hinged to the other side of the driving wheel 232 away from the axis. The driving rod 233 passes through the driving rod bracket 237 and a magnetic suction block 2332 is arranged at the end. The magnetic suction block 2332 is connected to the electromagnet 21 2 Magnetic connection, the contact surface of the magnetic block 2332 and the electromagnet 212 is an arc surface, and it is completely fitted with the electromagnet 212 when in contact. The magnetic connection effect is increased by increasing the contact area, and the power of the electromagnet 212 is finally reduced. The surface of the driving rod 233 is close to the driving wheel 232. A spring stopper 2331 is arranged on the side, and the reset spring 234 is arranged between the spring stopper 2331 and the driving rod bracket 237. When the electromagnet 212 is powered off, the elastic force of the reset spring 234 causes the driving rod 233 to move toward the driving wheel 232, and finally the latch 231 is retracted toward the driving wheel 232, so that the counterweight device 30 can be detached.

[0031] In this embodiment, a reinforcing column 213 is provided between the bottom of the power supply 211 and the bottom wall of the box body 21, and the electromagnet 212 and the power supply 211 are reinforced by the reinforcing column 213 to prevent the central axis position of the electromagnet 212 and the power supply 211 from being offset, which ultimately causes the movement workmanship of the three cam latch assemblies 23 to be offset and affects the subsequent fixing process.

[0032] like Figure 1-4 As shown, the counterweight device 30 includes a mounting seat 31, a sinker frame 32 and a counterweight block 33. Three mortise and tenon pieces 311 are equally divided along the circumferential direction of the axis at the top of the mounting seat 31. A fixing hole 312 is opened on the mortise and tenon piece 311 close to the axis of the mounting seat 31. The mounting seat 31 is arranged at the bottom of the box body 21. The mortise and tenon piece 311 passes through the movable hole 214 to the inside of the box body 21. The sinker frame 32 is arranged at the bottom of the mounting seat 31. The sinker frame 32 has three support feet 321, and the counterweight block 33 is arranged at the bottom of the support feet 321.

[0033] In this embodiment, any one of the latch pins 231 can pass through the adjacent fixing hole 312. The end of the latch pin 231 is arc-shaped, and a chamfer is provided at the edge of the fixing hole 312. Since there is a gap between the mounting base 31 and the box body 21, the chamfer and the arc-shaped end are used to increase the smoothness of the connection between the latch pin 231 and the fixing hole 312 to avoid jamming.

[0034] In this embodiment, the signal output end of the controller 12 is communicatively connected to the signal input end of the electromagnet 212 .

[0035] Embodiment 1: before launching, assembly work is performed first. The disengagement device 20 is arranged between the seismograph body 10 and the counterweight device 30. The mortise and tenon piece 311 arranged on the top of the mounting seat 31 enters into the interior of the box body 21 through the movable hole 214 at the bottom of the box body 21. At this time, the control electromagnet 212 is turned on, and the magnetic suction block 2332 in the cam latch assembly 23 is attracted by the magnetic force of the electromagnet 212 and contacts it. At this time, the latch 231 passes through the fixing hole 312. The preparation work is completed and the seafloor seismograph can be launched. When it needs to be recovered, the staff on the deck sends a signal, and the controller 12 receives the signal to control the electromagnet 212 to turn off. At this time, the magnetic attraction disappears, and the latch 231 will be indirectly retracted toward the driving wheel 232 through the elastic force of the reset spring 234. The counterweight device 30 is separated, and the seismograph body 10 floats up to complete the recovery.

[0036] In Example 2, compared with Example 1 in which the disengagement operation is completed by the controller 12, when the power supply 211 is exhausted, the electromagnet 212 is disconnected, and the cam latch assembly 23 completes the above-mentioned reset operation to separate the counterweight device 30, thereby avoiding significant losses in recovering the seismograph body 10 before the power supply 211 is exhausted.

[0037] Specifically, the working principle of the release device for a seismograph is as follows: the electromagnet 212 is in a normally open state, the magnetic block 2332 on the cam latch assembly 23 is attracted by magnetic force, and at the same time, the latch 231 is driven through the fixing hole 312 by the active wheel 232, and finally the counterweight device 30 and the separation device 20 are fixed. When the communication and power are normal and recovery is required, the electromagnet 212 is controlled to be closed by the controller 12, and the reset spring 234 drives the driving rod 233, the active wheel 232 and the latch 231 in turn, so that the latch 231 retracts, the counterweight device 30 is separated, and the seismograph body 10 floats to complete the recovery. When the power is exhausted, the electromagnet 212 is disconnected, and the cam latch assembly 23 is passively reset, and finally the separation and floating are completed. Through the above structure, the problem of being unable to recover when the power in the seismograph is insufficient to support the power of the separation device 20 is solved.

[0038] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A release device for a seismograph, characterized in that: include: A seismograph body (10), wherein air bags (11) are arranged in a circumferential direction on the outer side of the seismograph body (10), and a controller (12) is arranged inside the seismograph body (10); The disengagement device (20) comprises a box (21), an upper cover (22), a power source (211), an electromagnet (212) and a cam latch assembly (23), wherein the electromagnet (212) is arranged at the axis center of the bottom wall of the box (21), the power source (211) is arranged at the top of the electromagnet (212), the bottom wall of the box (21) is provided with three movable holes (214) equally spaced along the circumferential direction of the axis center, a cam latch assembly (23) is arranged in a direction perpendicular to the axis center of the bottom wall of the box (21) to the movable holes (214), the upper cover (22) is arranged at the top of the box (21), an inner recess (221) is arranged at the top of the upper cover (22), and the seismograph body (10) is embedded in the inner recess (221); The counterweight device (30) comprises a mounting seat (31), a sinking coupling frame (32) and a counterweight block (33); the top of the mounting seat (31) is provided with three mortise and tenon pieces (311) equally divided along the circumferential direction of the axis; the mortise and tenon piece (311) is provided with a fixing hole (312) on one side close to the axis of the mounting seat (31); the mounting seat (31) is arranged at the bottom of the box body (21); the mortise and tenon piece (311) passes through the movable hole (214) to the inside of the box body (21); the sinking coupling frame (32) is arranged at the bottom of the mounting seat (31); the sinking coupling frame (32) has three bracket feet (321); and the counterweight block (33) is arranged at the bottom of the bracket feet (321).

2. The release device for a seismograph according to claim 1, characterized in that: Any one of the latch pins (231) can pass through the adjacent fixing hole (312).

3. The release device for a seismograph according to claim 1, characterized in that: The end of the latch pin (231) is arc-shaped, and the edge of the fixing hole (312) is chamfered.

4. The release device for a seismograph according to claim 1, characterized in that: The cam latch assembly (23) comprises a latch (231), a driving wheel (232), a driving rod (233) and a reset spring (234); a driving rod bracket (237), a hinge bracket (236) and a latch stop bracket (235) are sequentially arranged in a vertical direction from the axis of the bottom wall of the box body (21) to the movable hole (214); the driving wheel (232) is hinged to the hinge bracket (236); the latch (231) is hinged to a side of the driving wheel (232) away from the axis; the latch (231) ) passes through the limiting hole on the latch limiting frame (235), the driving rod (233) is hinged to the other side of the driving wheel (232) away from the axis, the driving rod (233) passes through the driving rod bracket (237) and a magnetic block (2332) is arranged at the end, a spring limiting piece (2331) is arranged on the side of the surface of the driving rod (233) close to the driving wheel (232), and the reset spring (234) is arranged between the spring limiting piece (2331) and the driving rod bracket (237).

5. The release device for a seismograph according to claim 4, characterized in that: The contact surface between the magnetic attraction block (2332) and the electromagnet (212) is an arc-shaped surface, and is completely fitted when in contact with the electromagnet (212).

6. The release device for a seismograph according to claim 1, characterized in that: A reinforcing column (213) is provided between the bottom of the power source (211) and the bottom wall of the box body (21).

7. The release device for a seismograph according to claim 1, characterized in that: The signal output end of the controller (12) is communicatively connected to the signal input end of the electromagnet (212).

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