Seismometer unlocking pendulum device

Abstract

The utility model discloses an unlocking pendulum device for a seismometer, which relates to the technical field of seismometers and comprises a support and a pendulum bob, one end of the pendulum bob is a connecting end connected to the support through a reed, the other end of the pendulum bob is a swinging end capable of swinging freely, and the unlocking pendulum device is characterized by further comprising a positioning block matched with the swinging end of the pendulum bob. The positioning block can stretch out or retract relative to the support through the driving assembly, the positioning block can be matched with the swing end of the pendulum bob when stretching out, the pendulum bob can be limited to the positioning block in the stretching-out state, and when the positioning block retracts, the swinging path of the pendulum bob can be avoided. According to the seismometer pendulum unlocking and locking device provided by the utility model, the swing end of the pendulum bob is limited through the extension of the positioning block, so that the pendulum bob is locked in a non-use state, the protection on the reed is realized, and the limitation on the pendulum bob is relieved through the retraction of the positioning block, so that the pendulum bob can swing freely in a use state.

Description

Technical Field

[0001] The utility model relates to the technical field of seismometers, in particular to a seismometer unlocking pendulum device which can be applied to a seismometer. Background Art

[0002] Seismometers monitor earthquake signals in real time through sensors and convert them into electrical signals for transmission to the control system for processing and analysis. By monitoring earthquake signals, seismologists and engineers can timely understand the time, location and intensity of earthquakes, providing important information for earthquake early warning and disaster prevention.

[0003] The reed of a commonly used pendulum seismometer is easily deformed and damaged due to the large swing of the pendulum when it is not in use, such as during movement or transportation, thus affecting the detection function of the seismometer. Therefore, it is necessary to restrict the swing of the pendulum in this state, that is, to lock the pendulum. When it is in use, it is necessary to release the restriction on the pendulum so that it can move freely around the reed to sense ground movement and detect earthquakes. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and provide a seismometer pendulum unlocking device, which limits the swinging end of the pendulum by extending a positioning block so that the pendulum is locked when not in use, thereby protecting the reed leaf, and releases the restriction on the pendulum by retracting the positioning block so that the pendulum can swing freely when in use.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A seismometer unlocking pendulum device comprises a bracket and a pendulum, wherein one end of the pendulum is a connecting end connected to the bracket through a spring sheet, and the other end is a swinging end that can swing freely, and also comprises a positioning block, wherein the positioning block matches the swinging end of the pendulum, and the positioning block can be extended or retracted relative to the bracket through a driving component, and the positioning block can match the swinging end of the pendulum when extended, and the pendulum can be restricted by the positioning block in the extended state, and when the positioning block retracts, it can avoid the swinging path of the pendulum.

[0007] Furthermore, the driving assembly includes a driving part, a pumping and pressing part and a hydraulic bag. The pumping and pressing part is fluidically connected to the hydraulic bag, and the liquid can be transferred between the pumping and pressing part and the hydraulic bag under the action of the driving part; a positioning groove matching the positioning block is provided at the bottom of the bracket, and the hydraulic bag is arranged between the positioning block and the positioning groove. When the liquid enters the hydraulic bag and the hydraulic bag is in an expanded state, the positioning block can be supported. When the liquid flows out of the hydraulic bag and the hydraulic bag is in a contracted state, the support for the positioning block can be released.

[0008] Furthermore, the suction and pressure part is a long cavity, and the driving part includes a driving element and a pushing rod. The driving element can drive the pushing rod to extend into the suction and pressure part or retract from the suction and pressure part. When the pushing rod extends into the suction and pressure part, the liquid in the suction and pressure part can be pushed into the hydraulic bag. When the pushing rod retracts from the suction and pressure part, the liquid in the hydraulic bag can be sucked back into the suction and pressure part.

[0009] Furthermore, the drive element signal is connected to and controlled by a control device.

[0010] Furthermore, the control device signal is connected to an indicator light.

[0011] Furthermore, the pumping and pressing part is arranged in the bracket, the pumping and pressing part is arranged vertically, the driving part is arranged at the top of the pumping and pressing part, the bottom end of the pumping and pressing part is provided with a buffer connection port, the bottom end of the positioning groove is provided with a positioning connection port, one end of the connecting pipe is connected with the buffer connection port, and the other end passes through the positioning connection port and is connected with the hydraulic bag.

[0012] Furthermore, an elastic reset member is provided between the positioning block and the bracket, and the elastic reset member acts on the positioning block so that the positioning block can be retracted into the positioning groove when no external force is applied.

[0013] Furthermore, the swing end of the pendulum is a cone or quasi-cone structure that is larger at the top and smaller at the bottom, and the positioning block is provided with a cone or quasi-cone groove that matches the swing end.

[0014] Furthermore, the positioning block can at least partially cover the swing end of the pendulum when extended.

[0015] Furthermore, a flexible layer is provided on the surface of the region of the positioning block that can be used to cover the pendulum.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model limits the swinging end of the pendulum by extending the positioning block, so that the pendulum is locked when not in use, thereby protecting the spring leaf. The restriction on the pendulum is released by retracting the positioning block, so that the pendulum can swing freely when in use.

[0018] 2. The utility model realizes the extension and retraction operation of the positioning block by cooperating with the push rod and the pumping and pressing part to make the liquid flow into or out of the hydraulic bag.

[0019] 3. When the positioning block of the utility model retracts, the elastic reset member, combined with the gravity of the positioning block itself, can cooperate with the driving part to make the liquid flow out of the hydraulic bag.

[0020] 4. The swing end of the utility model is a cone or quasi-cone structure with a larger upper part and a smaller lower part, which can be easily and quickly aligned with the extended positioning block.

[0021] 5. The positioning block of the utility model partially covers the swing end of the pendulum to achieve the restriction of the pendulum, and the displacement of the positioning block is small, which meets the demand for miniaturization of the seismometer.

[0022] 6. The utility model can be remotely controlled to realize automatic control of the pendulum. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the positioning block of the utility model that extends to restrict the pendulum;

[0024] Figure 2 It is a structural schematic diagram of the utility model in which the positioning block retracts to release the restriction on the pendulum.

[0025] Markings in the figure: 1- bracket, 101- positioning groove, 2- pendulum, 201- swing end, 202- connecting end, 3- driving assembly, 301- driving part, 3011- driving element, 3012- pushing rod, 302- pumping and pressing part, 303- hydraulic bag, 4- positioning block, 5- elastic reset part. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings.

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Example 1

[0029] A seismometer unlocking pendulum device, such as Figure 1-2 As shown, it includes a bracket 1 and a pendulum 2, one end of the pendulum 2 is a connecting end 202 connected to the bracket 1 through a spring leaf, and the other end is a swinging end 201 that can swing freely, and also includes a positioning block 4, the positioning block 4 matches the swinging end 201 of the pendulum 2, the positioning block 4 can be extended or retracted relative to the bracket 1 through a driving component 3, the positioning block 4 can match the swinging end 201 of the pendulum 2 when extended, the pendulum 2 can be restricted to the positioning block 4 in the extended state, and the positioning block 4 can avoid the swinging path of the pendulum 2 when retracted.

[0030] The driving assembly 3 includes a driving part 301, a pumping and pressing part 302 and a hydraulic bag 303. The pumping and pressing part 302 is fluidically connected with the hydraulic bag 303, and liquid can be transferred between the pumping and pressing part 302 and the hydraulic bag 303 under the action of the driving part 301; a positioning groove 101 matching the positioning block 4 is provided at the bottom of the bracket 1, and the hydraulic bag 303 is arranged between the positioning block 4 and the positioning groove 101. When liquid enters the hydraulic bag 303 and the hydraulic bag 303 is in an expanded state, it can support the positioning block 4. When liquid flows out of the hydraulic bag 303 and the hydraulic bag 303 is in a contracted state, the support for the positioning block 4 can be released.

[0031] The suction and pressure part 302 is a long strip-shaped cavity, and the driving part 301 includes a driving element 3011 and a pushing rod 3012. The driving element 3011 can drive the pushing rod 3012 to extend into the suction and pressure part 302 or retract from the suction and pressure part 302. When the pushing rod 3012 extends into the suction and pressure part 302, the liquid in the suction and pressure part 302 can be pushed into the hydraulic bag 303. When the pushing rod 3012 retracts from the suction and pressure part 302, the liquid in the hydraulic bag 303 can be sucked back into the suction and pressure part 302.

[0032] The driving element 3011 is signal-connected to and controlled by the control device.

[0033] The control device signal is connected to an indicator light, which can be used to indicate whether the pendulum 2 is in a restricted state.

[0034] The pumping and pressing part 302 is arranged in the bracket 1, and the pumping and pressing part 302 is arranged vertically. The driving part 301 is arranged at the top of the pumping and pressing part 302. The bottom end of the pumping and pressing part 302 is provided with a buffer connection port, and the bottom end of the positioning groove 101 is provided with a positioning connection port. One end of the connecting pipe is connected with the buffer connection port, and the other end passes through the positioning connection port and is connected with the hydraulic bag 303.

[0035] An elastic reset member 5 is provided between the positioning block 4 and the bracket 1 , and the elastic reset member 5 acts on the positioning block 4 so that the positioning block 4 can be retracted into the positioning groove 101 when no external force is applied.

[0036] The swing end 201 of the pendulum 2 is a conical structure that is larger at the top and smaller at the bottom, and the positioning block 4 is provided with a conical groove that matches the swing end 201 .

[0037] When the positioning block 4 is extended, it can at least partially cover the swing end 201 of the pendulum 2 .

[0038] The surface of the area of ​​the positioning block 4 that can be used to cover the pendulum 2 is provided with a flexible layer, which has a buffering effect to avoid mechanical damage caused by the matching of the positioning block 4 and the pendulum 2, thereby affecting the accuracy of the seismometer.

[0039] When it is necessary to limit the pendulum 2, the control device sends a control signal to the driving element 3011, the driving element 3011 starts, and the driving push rod 3012 is driven to extend into the pumping and pressing part 302. Under the action of the push rod 3012, the liquid in the pumping and pressing part 302 flows from the connecting pipe into the hydraulic bag 303, the hydraulic bag 303 expands to lift the positioning block 4, and the elastic reset member 5 is stretched, so that the positioning block 4 limits the swing end 201 of the pendulum 2; when it is necessary to release the restriction of the pendulum 2, the control device sends a control signal to the driving element 3011, the driving element 3011 is started, and the driving push rod 3012 is retracted from the pumping and pressing part 302, a pressure difference is formed in the pumping and pressing part 302, and the liquid flows out of the hydraulic bag 303 under the combined action of the pressure difference in the pumping and pressing part 302, the elastic force of the elastic reset member 5, and the self-gravity of the positioning block 4, and returns to the pumping and pressing part 302, the hydraulic bag 303 contracts, and the positioning block 4 retracts into the positioning groove 101, thereby releasing the restriction on the pendulum 2.

[0040] The principles and implementation methods of the present invention are described in this article using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0041] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A seismometer unlocking pendulum device, comprising a bracket and a pendulum, wherein one end of the pendulum is a connecting end connected to the bracket through a spring, and the other end is a swinging end that can swing freely. It is characterized in that It also includes a positioning block, which matches the swing end of the pendulum. The positioning block can be extended or retracted relative to the bracket through a driving component. When the positioning block is extended, it can match the swing end of the pendulum. The pendulum can be restricted by the positioning block in the extended state. When the positioning block is retracted, it can avoid the swing path of the pendulum.

2. The seismometer unlocking pendulum device according to claim 1, It is characterized in that The driving assembly includes a driving part, a pumping and pressing part and a hydraulic bag. The pumping and pressing part is in fluid communication with the hydraulic bag, and liquid can be transferred between the pumping and pressing part and the hydraulic bag under the action of the driving part; a positioning groove matching the positioning block is provided at the bottom of the bracket, and the hydraulic bag is arranged between the positioning block and the positioning groove. When liquid enters the hydraulic bag and the hydraulic bag is in an expanded state, the positioning block can be supported. When liquid flows out of the hydraulic bag and the hydraulic bag is in a contracted state, the support for the positioning block can be released.

3. The seismometer unlocking pendulum device according to claim 2, It is characterized in that The pumping and pressing part is a long strip-shaped cavity, and the driving part includes a driving element and a pushing rod. The driving element can drive the pushing rod to extend into the pumping and pressing part or retract from the pumping and pressing part. When the pushing rod extends into the pumping and pressing part, the liquid in the pumping and pressing part can be pushed into the hydraulic bag. When the pushing rod retracts from the pumping and pressing part, the liquid in the hydraulic bag can be sucked back into the pumping and pressing part.

4. The seismometer unlocking pendulum device according to claim 3, It is characterized in that The drive element is signal-connected to and controlled by the control device.

5. The seismometer unlocking pendulum device according to claim 4, It is characterized in that The control device signal is connected to an indicator light.

6. The seismometer unlocking pendulum device according to claim 2, It is characterized in that The pumping and pressing part is arranged in the bracket, the pumping and pressing part is arranged vertically, the driving part is arranged at the top of the pumping and pressing part, the bottom end of the pumping and pressing part is provided with a buffer connection port, the bottom end of the positioning groove is provided with a positioning connection port, one end of the connecting pipe is connected with the buffer connection port, and the other end passes through the positioning connection port and is connected with the hydraulic bag.

7. The seismometer unlocking pendulum device according to claim 1, It is characterized in that An elastic reset member is arranged between the positioning block and the bracket, and the elastic reset member acts on the positioning block so that the positioning block can be retracted into the positioning groove when no external force acts on it.

8. The seismometer unlocking pendulum device according to claim 1, It is characterized in that The swing end of the pendulum is a cone or quasi-cone structure that is larger at the top and smaller at the bottom, and the positioning block is provided with a cone or quasi-cone groove that matches the swing end.

9. The seismometer unlocking pendulum device according to claim 8, It is characterized in that When the positioning block is extended, it can at least partially cover the swing end of the pendulum.

10. The seismometer unlocking pendulum device according to claim 9, It is characterized in that The surface of the area of ​​the positioning block that can be used to cover the pendulum is provided with a flexible layer.

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