Crack monitoring alarm device

Abstract

The utility model discloses a crack monitoring alarm device which comprises a shell, servo motors, a box body and a supporting seat, the shell is used for being fixed on a hard foundation, the shell is a cavity with a containing space in the middle, the shell is of a long-strip-shaped structure and provided with monitoring holes, the monitoring holes are provided with first linear bearings, the number of the servo motors corresponds to the number of the monitoring holes, and the servo motors correspond to the number of the box body. The servo motor is provided with an encoder, the encoder is used for recording rotation data of a rotating shaft of the servo motor, a pull wire shaft is arranged in the middle of the box body in a pivoted mode, the pull wire shaft is provided with a positioning hole penetrating through the side wall of the box body, the box body is detachably installed on the side wall of the servo motor, and the rotating shaft extends into the positioning hole. A rope body is arranged on the peripheral wall of the pull wire shaft, the servo motor can drive the rope body to be wound on the peripheral wall of the pull wire shaft or release the pull wire shaft, one end of the rope body is fixedly arranged on the outer wall of the pull wire shaft, and the other end of the rope body is fixedly arranged in a monitoring area; the stay wire shaft penetrates through the first linear bearing and then extends out of the monitoring hole.

Description

Technical Field

[0001] The utility model relates to the field of geological alarm equipment, in particular to a crack monitoring and alarm device. Background Art

[0002] In geological disasters, crack monitoring is particularly important. The existing method mainly refers to the relative displacement monitoring method of cracks, which monitors the relative opening and closing changes on both sides of the cracks in the disaster body to understand the dynamic changes and development trends of the geological disaster body.

[0003] Existing crack monitoring and alarm devices, such as Chinese invention patent CN202211108659.X, use infrared monitoring mechanisms to achieve precise monitoring requirements. However, in actual applications, especially for my country's numerous mountainous areas, the use of this system has the problem of high cost. At the same time, the error of the structure is also large, which has caused the problem of relatively limited application and affected the monitoring coverage of geological disasters.

[0004] Of course, there are also relatively simple monitoring mechanisms, but the existing monitoring mechanisms (generally rod-type structures) cannot achieve multi-faceted coverage, and the monitoring is relatively single. At the same time, the existing monitoring mechanisms are difficult to assemble, have poor improveability, and are complex in structure. Utility Model Content

[0005] The main purpose of this utility model is to propose a crack monitoring and alarm device, which aims to improve the existing pole-type monitoring alarm, assemble the product as a modular device, thereby reducing production costs, and making it easy to assemble and install, as well as to maintain in the later stage, thereby improving the monitoring coverage of geological disasters and improving property and personal safety.

[0006] To achieve the above objectives, the present invention proposes a crack monitoring and alarm device, comprising:

[0007] A housing, the housing being fixed to a hard foundation, the housing being a cavity with a receiving space in the middle, the housing being an elongated strip-shaped structure, the outer peripheral wall of the lower portion of the housing being provided with a plurality of monitoring holes distributed along the peripheral wall, the monitoring holes being provided with a first linear bearing;

[0008] Servo motors, the number of which corresponds to the number of monitoring holes, and the servo motors are provided with encoders for recording the rotation data of the servo motor shafts;

[0009] The box body is provided with a pivotally arranged wire pulling shaft in the middle of the box body, and the wire pulling shaft is provided with a positioning hole that passes through the side wall of the box body. The box body can be detachably mounted on the side wall of the servo motor, and the rotating shaft extends into the positioning hole.

[0010] The outer peripheral wall of the pull-wire shaft is provided with a rope body, and the servo motor can drive the rope body to be wound around the outer peripheral wall of the pull-wire shaft or release it, one end of the rope body is fixed to the outer wall of the pull-wire shaft, and the other end is fixed to the monitoring area;

[0011] The wire pulling shaft passes through the first linear bearing and then extends out of the monitoring hole;

[0012] The support base is arranged in the accommodating space and above the servo motor. The support base is provided with a lithium battery and a control device. The control device is connected to an alarm device, and the alarm device is arranged on the upper wall of the shell.

[0013] 1. Compared with existing monitoring alarms, the servo motor, box, lithium battery and control device are modularly installed in the accommodation space, thereby ensuring the waterproofness of the alarm. At the same time, in order to ensure the stability of use and the isolation of electronic components, a support base is set to separate some electronic components, thereby improving the stability of use and making assembly, installation and maintenance more convenient.

[0014] 2. Unlike existing pull-cord switches, this system uses a servo motor to precisely control the displacement of the pull-cord. When a crack or ground subsidence in the monitored area deforms, the other end of the cord will be displaced, causing the encoder to pull the wire shaft, which in turn drives the shaft to rotate. A predetermined threshold is set by the control device, which then controls the on / off of the alarm device. For example, a quarter-turn rotation of the shaft triggers the alarm.

[0015] 3. Unlike the existing design, the one-pole-one-alarm design is different in that, by setting monitoring holes on the peripheral wall of the shell, multiple monitoring holes can be set according to the terrain and the number of monitoring. The monitoring holes can be reserved and can be closed with sealing plugs when not in use. This realizes a single fixed pile, which can monitor multiple locations, multiple sites and multiple areas at the same time, thereby reducing the installation of fixed poles, improving the stability of monitoring, and realizing regional layout. The result is simple and the cost is lower than the distributed monitoring of Comparative Document 1. At the same time, by replacing the servo motor with higher precision, the effect of precise monitoring can be achieved.

[0016] The main reason is that the pole has high requirements for site selection. It should be set up in a fixed layer or fixed position to avoid errors or alarms caused by fixed positions, thereby improving monitoring stability. Therefore, the setting and installation of fixed poles are more troublesome and time-consuming.

[0017] 4. The setting of the linear bearing effectively improves the sliding stability of the rope body and reduces friction, where the friction can be the friction of the bending or the rope body itself; at the same time, the setting of the linear bearing can also enable the rope body to be pre-buried through the tube body, thereby effectively reducing false touches, improving the stability of use, and avoiding the problem of false triggering that often occurs in existing exposed structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This utility model is a cross-sectional view Figure 1 ;

[0020] Figure 3 This utility model is a cross-sectional view Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the rear of the hidden housing of the utility model;

[0022] Figure 5 is a schematic diagram of the shell;

[0023] Figure 6 This is a schematic diagram of the coordination between the servo motor and the box body.

[0024] In the figure,

[0025] 1 is the shell, 10 is the accommodation space,

[0026] 2 is the monitoring hole, 21 is the first linear bearing, 22 is the second linear bearing,

[0027] 3 is a servo motor, 30 is a rotating shaft, 31 is a box body, 31a is a wire drawing shaft, 31b is a positioning hole, 31c is a coil spring, 33 is a rope body,

[0028] 4 is a support base, 41 is a lithium battery, 42 is a control device, 43 is a solar panel, 44 is an alarm,

[0029] 5 is the opening, 51 is the upper cover,

[0030] 6 is the support leg,

[0031] 7 is a positioning rod,

[0032] 8 is the tube body. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0035] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] like Figures 1 to 6 As shown, a crack monitoring and alarm device includes:

[0037] The housing 1 is fixed to a hard foundation. The housing 1 is a cavity with a receiving space 10 in the middle. The housing 1 is an elongated structure. The outer peripheral wall of the lower portion of the housing 1 is provided with a plurality of monitoring holes 2 distributed along the peripheral wall. The monitoring holes 2 are provided with first linear bearings 21.

[0038] Servo motors 3, the number of the servo motors 3 corresponding to the number of monitoring holes 2, the servo motors 3 are provided with encoders, and the encoders are used to record the rotation data of the shaft 30 of the servo motor 3;

[0039] The box body 31 has a pivotally mounted wire pull shaft 31a in the middle thereof, a coil spring is provided between the wire pull shaft 31a and the box body, and the wire pull shaft 31a has a positioning hole 31b that passes through the side wall of the box body 31. The box body 31 can be detachably mounted on the side wall of the servo motor 3, and the rotating shaft 30 extends into the positioning hole 31b.

[0040] The outer peripheral wall of the wire pulling shaft 31a is provided with a rope body 33, and the coil spring is used to make the rope body 33 reel toward the wire pulling shaft 31a, and the servo motor 3 can drive the rope body 33 to be wound around the outer peripheral wall of the wire pulling shaft 31a or release it (through the cooperation of the coil spring and the servo motor, it can be identified whether the rope body 33 is reeled in forward or reverse rotation, that is, when both ends of the rope body 33 are fixed, the elastic force of the coil spring is fixed, and when the monitoring area is deformed toward the shell, the rope body 33 rotates in the direction under the pressure of the coil spring, and when the monitoring area is deformed toward the direction away from the shell, the coil spring rotates outward under the pressure, and the elastic force of the coil spring can be designed according to actual needs, and the elastic force is required to be small so as not to affect the monitoring of the rotation), one end of the rope body 33 is fixed to the outer wall of the wire pulling shaft 31a, and the other end is fixed to the monitoring area;

[0041] The wire pulling shaft 31a passes through the first linear bearing 21 and extends out of the monitoring hole 2;

[0042] The support base 4 is arranged in the accommodating space 10 and above the servo motor 3. The support base 4 is provided with a lithium battery 41 and a control device 42. The control device 4242 is connected to an alarm device (such as a warning light and / or a speaker, and of course it can also be linked to a wireless system to achieve wireless early warning), and the alarm device is arranged on the upper wall of the shell 1.

[0043] 1. Compared with the existing monitoring alarm 44, the servo motor 3, the box body 31, the lithium battery 41 and the control device 4242 are modularly installed in the accommodating space 10, thereby ensuring the waterproofness of the alarm 44. At the same time, in order to ensure the stability of use and the isolation of electronic components, the support base 4 is provided to separate some electronic components, thereby improving the stability of use and making assembly, installation and maintenance more convenient.

[0044] 2. Unlike existing pull-cord switches, a servo motor 3 is used to precisely control the displacement of the pull-cord. When a crack or ground subsidence in the monitored area deforms, the other end of the rope 33 is displaced by the deformation. This causes the encoder pull-cord shaft 31a to rotate, which in turn drives the rotating shaft 30. A predetermined threshold is set by the control device 4242, which then controls the alarm device to be turned on or off. For example, a quarter-turn rotation of the rotating shaft 30 triggers the alarm device.

[0045] 3. Unlike the existing design of one pole and one alarm 44, a monitoring hole 2 is provided on the peripheral wall of the housing 1. Depending on the terrain and the number of monitoring holes, multiple monitoring holes 2 can be provided. The monitoring holes 2 can be reserved and sealed with sealing plugs when not in use. This enables a single fixed pole to monitor multiple locations, multiple sites, and multiple areas at the same time, thereby reducing the installation of fixed poles and improving the stability of monitoring.

[0046] The main reason is that the pole has high requirements for site selection. It should be set up in a fixed layer or fixed position to avoid errors or alarms caused by fixed positions, thereby improving monitoring stability. Therefore, the setting and installation of fixed poles are more troublesome and time-consuming.

[0047] 4. The provision of linear bearings effectively improves the sliding stability of the rope 33 and reduces friction, where the friction can be caused by bending or the friction of the rope 33 itself. Furthermore, the provision of linear bearings allows the rope 33 to be pre-buried through the tube 8, thereby effectively reducing false triggering, improving operational stability, and avoiding the problem of false triggering often seen with existing exposed structures.

[0048] 5. The integrated setting of the alarm 44 can provide real-time alarms and improve disaster prevention.

[0049] Specifically, the housing 1 is cylindrical and has an opening 5 at its upper end. An upper cover 51 is pivotally mounted to the opening 5 via a hinge. A sealing ring is provided between the upper cover and the opening 5, and the alarm device is located on the upper cover. The sealing ring ensures a tight seal between the upper cover and the opening, while also facilitating access to electronic components within the storage space 10.

[0050] Specifically, the upper cover is further provided with a solar power generation panel 43 , which is connected to the control device 4242 and supplies power to the lithium battery 41 for storage.

[0051] Specifically, the portion of the rope body 33 extending out of the shell 1 is pre-buried underground through the tube body 8. The tube body 8 is provided with a second linear bearing 22 or a built-in roller at the bending position of the rope body 33, thereby avoiding bending when the position is different, resulting in excessive friction, and effectively improving the stability of use; avoiding errors.

[0052] Specifically, the bottom wall of the housing 1 is provided with a plurality of spaced-apart supporting legs 6 to meet different installation requirements.

[0053] Specifically, a positioning rod 7 is extended upward from the bottom wall of the accommodating space 10, and the support seat 4 is arranged at the upper end of the positioning rod 7, thereby facilitating the need for layer-by-layer installation.

[0054] Specifically, the tightness of the rope 33 is adjusted by rotating the servo motor 3 , which effectively avoids the problem of troublesome length adjustment in the prior art.

[0055] Specifically, the box body 31 and the servo motor 3 are an integrated module.

[0056] Specifically, when the housing 1 is rectangular, an opening is provided on the sidewall of the housing 1. A preferred embodiment is to use a circular housing 1, which has the lowest cost and is easy to process and install, and the extension of the rope body 33 has no blind angle.

[0057] Specifically, at least four rope bodies 33 are provided and are distributed at intervals along the circumference of the housing 1 with respect to the axis thereof.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A crack monitoring and alarm device, characterized in that: include: A housing, the housing being fixed to a hard foundation, the housing being a cavity with a receiving space in the middle, the housing being an elongated strip-shaped structure, the outer peripheral wall of the lower portion of the housing being provided with a plurality of monitoring holes distributed along the peripheral wall, the monitoring holes being provided with a first linear bearing; Servo motors, the number of which corresponds to the number of monitoring holes, and the servo motors are provided with encoders for recording the rotation data of the servo motor shafts; The box body is provided with a pivotally arranged wire drawing shaft in the middle of the box body, a coil spring is provided between the wire drawing shaft and the box body, the wire drawing shaft is provided with a positioning hole penetrating the side wall of the box body, the box body is detachably mounted on the side wall of the servo motor, and the rotating shaft extends into the positioning hole. The outer peripheral wall of the wire pulling shaft is provided with a rope body, the coil spring is used to reel the rope body toward the wire pulling shaft, the servo motor can drive the rope body to be wound around the outer peripheral wall of the wire pulling shaft or release it, one end of the rope body is fixed to the outer wall of the wire pulling shaft, and the other end is fixed to the monitoring area; The wire pulling shaft passes through the first linear bearing and then extends out of the monitoring hole; A support base, the support base is arranged in the accommodating space and above the servo motor, the support base is provided with a lithium battery and a control device, the control device is connected to an alarm device, and the alarm device is arranged on the upper wall of the shell; The portion of the rope extending out of the housing is pre-buried underground through a tube, and the tube is provided with a second linear bearing or a built-in roller at the bending position of the rope.

2. The crack monitoring and alarm device according to claim 1, characterized in that: The shell is cylindrical, and an opening is provided at the upper end of the shell. An upper cover is pivotally mounted on the opening via a hinge. A sealing ring is provided between the upper cover and the opening, and the alarm device is arranged on the upper cover.

3. The crack monitoring and alarm device according to claim 2, characterized in that: The upper cover is also provided with a solar power generation panel, which is connected to the control device and supplies power to the lithium battery for storage.

4. The crack monitoring and alarm device according to claim 1, characterized in that: The bottom wall of the shell is provided with a plurality of support feet arranged at intervals.

5. The crack monitoring and alarm device according to claim 1, characterized in that: A positioning rod is extended upward from the bottom wall of the accommodating space, and the support seat is arranged at the upper end of the positioning rod.

6. The crack monitoring and alarm device according to claim 1, characterized in that: The tightness of the rope is adjusted by rotating the rope with a servo motor.

7. The crack monitoring and alarm device according to claim 1, characterized in that: The box body and the servo motor are an integrated module.

8. The crack monitoring and alarm device according to claim 1, characterized in that: When the shell is rectangular, the side wall of the shell is provided with an opening.

9. The crack monitoring and alarm device according to claim 1, characterized in that: The rope bodies are provided with at least four and are distributed at intervals along the circumference of the shell body with the axis thereof.

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