CN113296144A

CN113296144A - Seismometer with damping zero adjustment function

Info

Publication number: CN113296144A
Application number: CN202010110251.0A
Authority: CN
Inventors: 韩智明; 张涛; 洪利; 姚振静; 孟娟
Original assignee: College Of Disaster Prevention Technology
Current assignee: College Of Disaster Prevention Technology
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2021-08-24
Anticipated expiration: 2040-02-24
Also published as: CN113296144B

Abstract

The invention discloses a damping zero-setting seismometer which comprises a bottom plate, a horizontal adjusting mechanism, an X-direction sensor, a Y-direction sensor and a Z-direction sensor, wherein the X-direction sensor comprises a base, two lifting blocks, a guide shaft, an adjusting screw, spring damping, a reed, a signal pickup plate, a copper column and a capacitor plate, the two lifting blocks are arranged above the base, the capacitor plate is fixed between the two lifting blocks, the guide shaft is fixed above the base, the adjusting screw penetrates through a central hole and is in threaded connection with the base, the outer side of the adjusting screw between the base and the lifting blocks is sleeved with the spring damping, and the number of the signal pickup plates is two. The invention has reasonable design, simple structure and convenient installation, changes the problem of high assembly and adjustment difficulty and high requirement in the prior structure for adjusting the zero point of the gear, adopts the damping zero adjustment structure consisting of the guide rod, the slide block and the spring, ensures that the assembly and adjustment are easier and simpler, has lower manufacturing cost, can efficiently and quickly find the zero point position, and has popularization value.

Description

Seismometer with damping zero adjustment function

Technical Field

The invention belongs to the technical field of disaster prevention and reduction instruments, and particularly relates to a seismometer with damping zero adjustment.

Background

Sensors for sensing seismic waves, known as seismometers, can objectively and timely record ground vibrations. The basic principle is to use the inertia of a suspended weight to vibrate the ground while it remains stationary when an earthquake occurs. The seismometer has zero point position, and the general zero setting mode in the market is gear adjustment, and the assembly degree of difficulty is big, and the cost is higher.

Disclosure of Invention

The present invention is directed to a damping zero-setting seismometer to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a seismometer of damping zeroing which the structural feature lies in: the device comprises a bottom plate, a horizontal adjusting mechanism, an X-direction sensor, a Y-direction sensor and a Z-direction sensor, wherein the outer side of the bottom plate is provided with three horizontal adjusting mechanisms, each horizontal adjusting mechanism comprises a horizontal adjusting screw and a fixing nut fixed above the bottom plate, the top end of the horizontal adjusting screw penetrates through the bottom plate and is in threaded connection with the fixing nut, the X-direction sensor, the Y-direction sensor and the Z-direction sensor are fixed above the bottom plate, the structures of the X-direction sensor, the Y-direction sensor and the Z-direction sensor are the same, the X-direction sensor comprises a base, a lifting block, a guide shaft, an adjusting screw, a spring damping, a reed, a signal pick-up plate, a copper column and a capacitor plate, two L-shaped lifting blocks which are arranged oppositely are arranged above the base, a capacitor plate is fixed between the two lifting blocks, the lifting blocks are provided with a central through hole extending along the axial direction and guide holes symmetrically arranged at the two ends of the central through hole, the top of base be fixed with the guiding axle that the guiding hole position is corresponding, and the guiding axle is mobilizable to be located in the guiding hole, adjusting screw run through centre bore and base spiro union, wherein in the mobilizable central through hole of locating of adjusting screw, and the outside cover of adjusting screw between base and the elevator is equipped with spring damping, signal pick-up plate be two, two signal pick-up plates locate the upper and lower both sides of electric capacity board respectively, wherein the welding has the copper post between four angles of two signal pick-up plates, and the signal pick-up plate of locating the electric capacity board below is connected with the base through the reed.

Compared with the prior art, the damping zero adjustment mechanism has the advantages that the design is reasonable, the structure is simple, the installation is convenient, the problem that the assembly and adjustment difficulty is high in the conventional zero adjustment structure of the gear is solved, the damping zero adjustment structure is formed by the guide rod, the sliding block and the spring, the assembly and adjustment are easier and simpler, the manufacturing cost is lower, the zero position can be found efficiently and quickly, and the popularization value is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the structure of the X-direction sensor of the present invention;

in the figure: the device comprises a base plate 1, a 2-X-direction sensor, a 3-Y-direction sensor, a 4-Z-direction sensor, a horizontal adjusting screw 5, a fixing nut 6, a base 7, a lifting block 8, a guide shaft 9, an adjusting screw 10, a spring damper 11, a reed 12, a signal pickup plate 13, a copper column 14 and a capacitor plate 15.

Detailed Description

The invention is further explained below with reference to the drawings, without limiting the scope of protection of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, the invention provides a technical solution, a damping zero-setting seismometer, comprising a bottom plate 1, a horizontal adjusting mechanism, an X-direction sensor 2, a Y-direction sensor 3 and a Z-direction sensor 4, wherein three horizontal adjusting mechanisms are arranged at the outer side of the bottom plate 1, the horizontal adjusting mechanism comprises a horizontal adjusting screw 5 and a fixing nut 6 fixed above the bottom plate 1, the top end of the horizontal adjusting screw 5 penetrates through the bottom plate 1 and is in threaded connection with the fixing nut 6, the X-direction sensor 2, the Y-direction sensor 3 and the Z-direction sensor 4 are fixed above the bottom plate 1, the structures of the X-direction sensor 2, the Y-direction sensor 3 and the Z-direction sensor 4 are the same, the X-direction sensor 2 comprises a base 7, a lifting block 8, a guide shaft 9, an adjusting screw 10, a spring damper 11, a reed 12, a signal pickup plate 13, a copper column 14 and a capacitance plate 15, two L-shaped lifting blocks 8 which are oppositely arranged are arranged above the base 7, wherein a capacitance plate 15 is fixed between the two lifting blocks 8, the lifting block 8 is provided with a central through hole extending along the axial direction and guide holes symmetrically arranged at the two ends of the central through hole, a guide shaft 9 corresponding to the position of the guide hole is fixed above the base 7, the guide shaft 9 is movably arranged in the guide hole, the adjusting screw 10 penetrates through the central hole and is in threaded connection with the base 7, wherein the adjusting screw 10 is movably arranged in the central through hole, the outer side of the adjusting screw 10 between the base 7 and the lifting block 8 is sleeved with a spring damper 11, the number of the signal pickup plates 13 is two, the two signal pickup plates 13 are respectively arranged at the upper side and the lower side of the capacitor plate 15, copper columns 14 are welded between four corners of the two signal pickup plates 13, and the signal pickup plate 13 arranged below the capacitor plate 15 is connected with the base 7 through reeds 12.

The working principle is as follows: during installation, the seismometer is in a horizontal state by adjusting the three horizontal adjusting mechanisms, the adjusting screw 10 is screwed to a zero position, at the moment, the spring damper 11 is in a compression state, the capacitor plate 15 is arranged at the middle position between the two signal pickup plates 13, the capacitor plate 15 is not contacted with the two signal pickup plates 13, the signal pickup plates 13 are connected with the control system through the reeds 12, the reeds 12 swing along with the earthquake during the earthquake, the two signal pickup plates 13 vibrate along with the earthquake, the capacitor plate 15 generates position change from the relative middle return-to-zero position between the two signal pickup plates 13, the position change is picked up by the signal pickup plates 13 and is uploaded to the control system, and the earthquake monitoring is achieved. After the earthquake is finished, the capacitor plate 15 automatically returns to the zero position under the action of the spring damper 11.

The invention has reasonable design, simple structure and convenient installation, changes the problem of high assembly and adjustment difficulty and high requirement in the prior structure for adjusting the zero point of the gear, adopts the damping zero adjustment structure consisting of the guide rod, the slide block and the spring, ensures that the assembly and adjustment are easier and simpler, has lower manufacturing cost, can efficiently and quickly find the zero point position, and has popularization value.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A seismometer with damping zeroing, comprising: the device comprises a bottom plate, a horizontal adjusting mechanism, an X-direction sensor, a Y-direction sensor and a Z-direction sensor, wherein the outer side of the bottom plate is provided with three horizontal adjusting mechanisms, each horizontal adjusting mechanism comprises a horizontal adjusting screw and a fixing nut fixed above the bottom plate, the top end of the horizontal adjusting screw penetrates through the bottom plate and is in threaded connection with the fixing nut, the X-direction sensor, the Y-direction sensor and the Z-direction sensor are fixed above the bottom plate, the structures of the X-direction sensor, the Y-direction sensor and the Z-direction sensor are the same, the X-direction sensor comprises a base, a lifting block, a guide shaft, an adjusting screw, a spring damping, a reed, a signal pick-up plate, a copper column and a capacitor plate, two L-shaped lifting blocks which are arranged oppositely are arranged above the base, a capacitor plate is fixed between the two lifting blocks, the lifting blocks are provided with a central through hole extending along the axial direction and guide holes symmetrically arranged at the two ends of the central through hole, the top of base be fixed with the guiding axle that the guiding hole position is corresponding, and the guiding axle is mobilizable to be located in the guiding hole, adjusting screw run through centre bore and base spiro union, wherein in the mobilizable central through hole of locating of adjusting screw, and the outside cover of adjusting screw between base and the elevator is equipped with spring damping, signal pick-up plate be two, two signal pick-up plates locate the upper and lower both sides of electric capacity board respectively, wherein the welding has the copper post between four angles of two signal pick-up plates, and the signal pick-up plate of locating the electric capacity board below is connected with the base through the reed.