Geological disaster crack measuring device

Abstract

The invention discloses a geological disaster crack measuring device, and relates to the related technical field of crack measuring tools, and the device thoroughly abandons the traditional mode of driving a measuring nail by using a hammer; in traditional measurement, a worker needs to hold a hammer to knock a measuring nail, waving of the hammer not only has large inertia and is difficult to control accurately, but also has certain potential safety hazards. According to the device, the measuring nail is accurately positioned and guided through the positioner, and the measuring nail is stably pressed down in cooperation with the nail pressing device, so that the risk that fingers of a worker are possibly injured in the using process of the hammer is fundamentally eliminated; by means of the design, safety of measuring personnel is greatly guaranteed, measuring work can be carried out in a safer environment, the geological disaster crack measuring device is particularly suitable for geological disaster crack measuring work carried out in dangerous areas or complex terrains, the probability of accidents is reduced, and a solid guarantee is provided for life safety of workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crack measuring tools, in particular to a geological disaster crack measuring device. BACKGROUND

[0002] Geological disasters seriously threaten human life and property safety and the stability of infrastructure. Common geological disasters such as earthquakes, landslides and debris flows often produce cracks in the ground or rock-soil mass. These cracks are not only an important manifestation of geological disasters, but also the key basis for assessing geological disaster risks, predicting disaster trends and developing effective prevention measures. Accurate measurement of geological disaster crack parameters is extremely important for early warning, disaster impact assessment and targeted governance of geological disasters.

[0003] At present, the commonly used method for geological disaster crack measurement is manual measurement, and the measuring device used is generally a simple tool such as a steel ruler or a caliper. When measuring the width of the crack, the worker needs to approach the crack directly, drive a set of measuring nails into the two sides of the crack, and then measure the distance between the two sets of measuring nails with the measuring device to obtain the data of the crack width. When detecting again, the worker can obtain the change of the crack width by measuring and recording the distance between the two sets of measuring nails. For crack depth measurement, a probe can be used in combination with a measuring device. The probe is inserted into the crack, and then the depth of the probe insertion is measured with the measuring device. This method is simple to operate and mainly suitable for cracks that are easy to reach, have regular shapes and are small in size.

[0004] However, the traditional method of geological disaster crack measurement has many drawbacks in practical application. When using a steel ruler or a caliper to measure, the worker needs to drive measuring nails into the two sides of the crack, which relies on a hammer and other auxiliary tools. The hammer is large in size and heavy in weight, and long-term use will increase the burden of the worker and affect the work efficiency. During the operation of driving the measuring nails into the two sides of the crack with the hammer, the worker needs to hold the measuring nails, which puts the fingers in danger and may be injured by the hammer if not careful, posing a great safety hazard. In view of these problems, it is urgent to develop a geological disaster crack measuring device that has the functions of guiding and limiting the measuring nails and is safe and convenient to operate. SUMMARY

[0005] The present application aims to provide a geological disaster crack measuring device to solve the problems raised in the background.

[0006] To achieve the above-mentioned application purpose, the present application adopts the following technical solutions: The geological disaster crack measuring device provided by the present application comprises a device body composed of a measuring box, a measuring ruler and a mounting box, and the mounting box is mounted at the end of the measuring box. The installation box is provided with a positioner for positioning and guiding the measuring nail, and the positioner comprises: Two groups of positioning frames are slidingly installed in the installation box, the outer walls of the two groups of positioning frames are in contact, through slots corresponding to the positioning frames are formed in the installation box, the outer walls of the two groups of positioning frames in contact are each provided with a semicircular limiting hole for guiding and limiting the measuring nail, and the installation box is provided with elastic mechanisms corresponding to the positioning frames to ensure that the outer walls of the two groups of positioning frames are in contact; A lifting block is slidingly installed at the top of the positioning frame, one side of the outer wall of the lifting block is designed in an arc shape corresponding to the inner wall of the semicircular limiting hole, the center point of the arc-shaped outer wall of the lifting block and the center point of the semicircular limiting hole are located on the same vertical line, and an end plate is installed at the top of the lifting block, and a guide groove for guiding the sliding of the measuring nail is formed in the end plate; A nail presser is installed at the top of the installation box for pushing the measuring nail downward, and the nail presser comprises a support frame arranged at the top of the device body, a screw rod is screwedly installed in the middle of the support frame, and a pressing block for pushing the measuring nail is rotatably installed at the bottom end of the screw rod; The installation box is provided with a positioner for positioning and guiding the measuring nail, and the positioner comprises: The installation box is provided with a positioner for positioning and guiding the measuring nail, and the positioner comprises:

[0007] As a preferred scheme of the present application, the positioner further comprises a limiting rod slidingly installed in the installation box and fixedly connected with the outer wall of the positioning frame, and a plurality of limiting rods are installed on the outer wall of each positioning frame; The cross section of the limiting rod is designed in a T shape, a first reset spring connected with the inner wall of the installation box is sleeved on the outer wall of the limiting rod, and the other end of the first reset spring is connected with the end portion of the limiting rod located in the installation box.

[0008] As a preferred scheme of the present application, the end plate is designed in a semicircle and is symmetrically provided with two groups at the top of the positioning frame, and a plurality of lifting blocks slidingly connected with the positioning frame are arranged at the bottom of each end plate; A plurality of installation grooves corresponding to the lifting blocks are formed in the top of the positioning frame at equal angles.

[0009] As a preferred scheme of the present application, the guide grooves formed in the two groups of end plates are of the same shape and are connected with each other, the guide grooves are designed in semicircular grooves, and the opening diameter of the top of the guide groove is greater than that of the bottom.

[0010] As a preferred scheme of the present application, the nail presser comprises: A sliding seat is installed at the top of the installation box and located at one side of the through slot, an axle seat rotatably connected with the support frame is slidingly installed in the sliding seat, and the axle seat can only slide horizontally in the sliding seat. The positioning seat is installed on the top of the installation box and is located on the other side of the through slot, and a docking seat is slidably installed in the positioning seat and is fixedly connected with the bottom of the side of the support frame which is not installed with the shaft seat.

[0011] As a preferred scheme of the present application, the positioning seat is provided with an opening for the sliding-out of the docking seat near the outer wall of the side of the through slot, and the corner of the opening of the positioning seat and the top corner of the end of the docking seat are both designed as arc fillets.

[0012] As a preferred scheme of the present application, two groups of limiters are symmetrically installed in the installation box, and the limiter comprises: A transmission limiting block is fixedly installed on the outer wall of the positioning frame and is slidably connected with the installation box, and a limiting wheel is rotatably installed on the end of the transmission limiting block; A limiting push block is slidably installed in the installation box and corresponds to the limiting wheel, the bottom end of the limiting push block is designed as an inclined corner near the side corner of the limiting wheel, and the bottom end of the limiting push block is pressed against the limiting wheel in the process of sliding down, and when the side wall of the limiting push block close to the positioning frame is attached to the outer wall of the limiting wheel, the two groups of positioning frames are in the attached state; A transmission rod is fixedly installed on the top of the limiting push block and is slidably connected with the installation box, the top end of the transmission rod protrudes out of the installation box, and the two groups of transmission rods are respectively located below the shaft seat and the docking seat and are attached to the bottom surface of the corresponding shaft seat and docking seat when the nail holder is in use; The cross section of the transmission rod is designed as a "cross" shape, and a second return spring is installed in the middle of the transmission rod and is connected with the inner wall of the installation box.

[0013] As a preferred scheme of the present application, the end of the support frame which is rotatably connected with the shaft seat is fixedly installed with a pressing plate for pushing the transmission rod downward; The end of the docking seat is installed with a positioning block for pushing the transmission rod downward, and the outer wall of the positioning seat is provided with a positioning groove corresponding to the positioning block; The pressing plate and the positioning block will press the end of the transmission rod during the rotation of the support frame, so as to ensure that the transmission rod will be pushed into the installation box.

[0014] As a preferred scheme of the present application, when the shaft seat is slid to be attached to the inner wall of the sliding seat and the support frame is rotated by 90°, the outer wall of the transmission rod is attached to the outer wall of the side of the shaft seat close to the through slot, so as to limit the position of the shaft seat.

[0015] As a preferred scheme of the present application, two groups of linkage returners are symmetrically installed in the through slot, and the installation positions of the linkage returners are staggered with the positioning frames, and the linkage returner comprises: Two groups of linkage blocks are symmetrically installed on the outer wall of the end plate; Linkage frame, which is slidingly installed in the through slot and symmetrically installed with two groups of linkage blocks installed in different end plates; Wherein, each group of linkage frames is slidingly connected with two linkage blocks installed on the outer wall of different end plates, the bottom of the linkage frame is fixedly installed with a third reset spring connected with the inner wall of the through slot, and the bottom of the linkage frame is fixedly installed with a sliding rod slidingly connected with the installation box.

[0016] Compared with the prior art, the above one or more technical solutions have the following beneficial effects: 1. The geological disaster crack measuring device completely abandons the traditional method of using a hammer to drive a measuring nail. In traditional measurement, the worker needs to hold a hammer to strike the measuring nail. The swing of the hammer not only has great inertia and is difficult to control accurately, but also has certain safety hazards. The device accurately positions and guides the measuring nail through the positioner, and the measuring nail is pressed down smoothly by the nail press, which fundamentally eliminates the risk of hitting the worker's fingers during the use of the hammer. This design greatly ensures the safety of the measurement personnel, allowing measurement work to be carried out in a safer environment, especially suitable for geological disaster crack measurement work in dangerous areas or complex terrain, reducing the probability of accidents, and providing a solid guarantee for the safety of workers' lives. 2. The geological disaster crack measuring device, the structure design of the device fully considers the convenience of operation. When installing the measuring nail, the user only needs to operate the corresponding parts according to the preset sliding and rotating mode, which can easily complete the installation of the measuring nail and the adjustment of the device without complex steps and additional tools. This simple and direct operation method greatly reduces the time consumption in the measurement process and improves the work efficiency. For example, in traditional measurement, each time the measuring nail is installed, it needs to find the appropriate position and use the hammer to drive it in. The device makes the installation of the measuring nail easy and fast through the ingenious structure design. At the same time, the clear scale design on the measuring ruler and the measuring box makes it convenient for the operator to directly read the data without complex conversion or auxiliary tools, further simplifying the measurement process and making the measurement work more efficient. 3、The geological disaster crack measuring device, wherein the half-circle limiting hole, the lifting block and the guide groove of the positioner are closely matched to form a high-precision nail positioning and guiding system; the half-circle limiting hole can accurately limit the position of the measuring nail, ensuring that it is in an ideal position state before being driven in; the arc-shaped outer wall of the lifting block corresponds to the inner wall of the half-circle limiting hole, providing stable support during the lowering of the measuring nail, effectively preventing the measuring nail from deviating or bending; the guide groove further guides the measuring nail to accurately fall into the half-circle limiting hole, while supporting the top of the measuring nail to prevent it from shaking during the entry process; the coordinated work of these components ensures the positional stability of the measuring nail during driving, thereby ensuring the accuracy of the positions of the two measuring nails; the accurate position of the measuring nail provides a reliable basis for crack width measurement, making the measurement data more accurate and providing a more valuable basis for risk assessment and development trend prediction of geological disasters; 4、The geological disaster crack measuring device, wherein the positioner and the linkage reset device effectively control and link the positioning frame and the end plate, significantly enhancing the stability of the device during measurement; the positioner limits the position of the positioning frame, ensuring the stability of the position of the measuring nail during driving, and preventing positional deviation of the measuring nail caused by shaking or displacement of the positioning frame; the linkage reset device ensures that the movement trajectories of the two end plates are the same and can be automatically reset, maintaining the structural stability of the device as a whole; 5、The geological disaster crack measuring device can ensure the accuracy and stability of the driving position of the measuring nail, and the data obtained each time has higher reliability; during long-term monitoring of geological disaster cracks, stable and reliable data can more accurately reflect the development and changes of the cracks, providing a more scientific basis for disaster prediction and the formulation of prevention and control measures; moreover, the convenience of operation of the device enables measurement work to be carried out more frequently and timely, ensuring the continuity of data and helping to discover subtle changes in cracks in a timely manner, providing strong support for early warning of geological disasters. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, make an explanation of the application complete.

[0018] In addition, the terms "mount", "set", "provided with", "connected", "linked", "sleeved" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0019] Figure 1is the structural schematic diagram of the whole application; Figure 2 is the structural schematic diagram of the installation box of the application; Figure 3 is the structural schematic diagram of the installation box after one side is cut open; Figure 4 is the structural schematic diagram of the installation box after the other side is cut open; Figure 5 is the structural schematic diagram of the positioner after being cut open; Figure 6 is the structural schematic diagram of the positioner in the application; Figure 5 is the structural schematic diagram of the positioner in the application; Figure 7 is the structural schematic diagram of the positioner in the application; Figure 5 is the structural schematic diagram of the positioner in the application; Figure 8 is the structural schematic diagram of the support frame in the nail presser after being rotated by 90°; Figure 9 is the structural schematic diagram of the positioner and the limiting device after the nail presser is cut open; Figure 10 is the structural schematic diagram of the positioner in the application; Figure 9 Figure 11 is the exploded view of the positioner, the nail presser, the limiting device and other components after the installation box is cut open; In the figure: 1, device body; 2, measuring box; 20, measuring ruler; 201, convex plate; 3, installation box; 30, through slot; 4, positioner; 40, positioning frame; 401, limiting rod; 402, first reset spring; 41, semicircular limiting hole; 411, installation slot; 42, lifting block; 43, end plate; 430, guide slot; 5, nail presser; 50, sliding seat; 51, shaft seat; 52, support frame; 520, pressing plate; 53, screw rod; 530, driving handle; 54, pressing block; 55, butt joint seat; 550, positioning block; 551, positioning slot; 56, positioning seat; 6, limiting device; 60, limiting push block; 61, transmission rod; 62, second reset spring; 63, transmission limiting block; 64, limiting wheel; 7, linkage reset device; 70, linkage block; 71, linkage frame; 72, third reset spring; 73, sliding rod. DETAILED DESCRIPTION

[0020] ​In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0021] The present application focuses on solving the problems existing in the traditional geological disaster crack measurement method, and provides a geological disaster crack measurement device integrating nail positioning and guiding and safe nail pressing, aiming to improve the safety, convenience and accuracy of measurement.

[0022] Please refer to Figures 1-11 A geological disaster crack measurement device, comprising a device body 1, the device body 1 further comprising a measurement box 2, a measurement ruler 20 and a mounting box 3; Among them, the mounting box 3 is installed at the end of the measurement box 2, which is the key part of realizing nail positioning, driving and device adjustment, the measurement ruler 20 is used for measuring the crack width change, and the measurement box 2 provides support and assistance for the whole measurement operation.

[0023] The present application also discloses a positioner 4; The positioner 4 is installed in the mounting box 3 and mainly comprises a positioning frame 40, a limiting rod 401, a first reset spring 402, a semicircular limiting hole 41, a mounting groove 411, a lifting block 42, an end plate 43 and a guide groove 430; Among them, two groups of positioning frames 40 are slidingly installed in the mounting box 3 and the outer walls thereof are attached, the semicircular limiting hole 41 at the attached position is used for guiding and limiting the nail, so as to ensure that the nail falls into the predetermined position accurately; the limiting rod 401 is fixedly connected with the outer wall of the positioning frame 40, the T-shaped cross section design prevents it from falling out, and the first reset spring 402 sleeved on the outer wall ensures that the two groups of positioning frames 40 are always attached, thereby maintaining the stable limitation on the nail; the lifting block 42 is slidingly installed on the top of the positioning frame 40, the arc-shaped outer wall thereof corresponds to the inner wall of the semicircular limiting hole 41, and provides support when the nail is lowered, thereby avoiding the bending of the nail; the mounting groove 411 limits the sliding of the lifting block 42, thereby enhancing the support stability; the end plate 43 is installed on the top of the lifting block 42, the semicircular plate is designed and two groups of the same are symmetrically arranged, the guide grooves 430 on the top of the two groups are mutually connected and are in the shape of semicircular grooves, the top opening is large and the bottom opening is small, which facilitates guiding the nail into the semicircular limiting hole 41 and supporting the top of the nail at the same time, thereby preventing the nail from sliding down.

[0024] The present application also discloses a nail presser 5; The nail presser 5 is installed on the top of the installation box 3 and is composed of a sliding base 50, a shaft base 51, a support frame 52, a pressing plate 520, a screw rod 53, a driving handle 530, a pressing block 54, a butt joint base 55, a positioning block 550, a positioning groove 551 and a positioning base 56; The sliding base 50 and the positioning base 56 are respectively installed on the two sides of the through slot 30, the shaft base 51 is transversely slid in the sliding base 50, the butt joint base 55 is slid in the positioning base 56, and the two are matched with the support frame 52 to realize the position adjustment of the support frame 52; the screw rod 53 is screw-installed in the middle of the support frame 52, the driving handle 530 at the top is rotated to drive the screw rod 53 to move the pressing block 54 up and down, thereby pushing the measuring nail downward to be punched into the two sides of the crack; the pressing plate 520 is fixed on the outer wall of the end of the support frame 52 which is rotationally connected with the shaft base 51, the positioning block 550 at the end of the butt joint base 55 is matched with the positioning groove 551 on the outer wall of the positioning base 56, and when the support frame 52 is rotated, the transmission rod 61 is extruded to realize the control of the position of the positioning frame 40.

[0025] The application further discloses a position limiter 6. The position limiter 6 is symmetrically installed in two groups in the installation box 3 and comprises a position pushing block 60, a transmission rod 61, a second reset spring 62, a transmission limiting block 63 and a limiting wheel 64. The transmission limiting block 63 is fixed on the outer wall of the positioning frame 40 and the limiting wheel 64 is rotationally installed at the end; the position pushing block 60 is slidably installed in the installation box 3 and the bottom end is matched with the limiting wheel 64 at an inclined angle, when the position pushing block 60 is slid downward to extrude the limiting wheel 64 until the side wall is attached to the outer wall of the limiting wheel 64, the two positioning frames 40 keep the attached state; the transmission rod 61 is fixed on the top of the position pushing block 60 and is in the shape of a cross section, the second reset spring 62 is installed in the middle, and the top end protrudes from the installation box 3 and is attached to the bottom surface of the shaft base 51 and the butt joint base 55, when the nail presser 5 is operated, the position pushing block 60 is controlled to be raised and lowered by the extrusion of the pressing plate 520 and the positioning block 550, and the position of the positioning frame 40 is limited.

[0026] The application further discloses a linkage reset device 7. The linkage reset device 7 is symmetrically installed in two groups in the through slot 30 and is staggered with the position of the positioning frame 40 and is composed of a linkage block 70, a linkage frame 71, a third reset spring 72 and a sliding rod 73. The linkage block 70 is symmetrically installed in two groups on the outer wall of the end plate 43, the linkage frame 71 is slidably installed in the through slot 30 and is slidably connected with the linkage block 70 on the different end plates 43; in the process of punching the measuring nail, the end plate 43 is lowered to drive the linkage block 70 to make the linkage frame 71 be lowered synchronously, so that the sliding tracks of the two end plates 43 are the same and the end faces are always coplanar, the sliding rod 73 limits the lifting track of the linkage block 70, and the third reset spring 72 is energized when the linkage block 70 is lowered to provide power for the reset of the end plate 43.

[0027] The working principle of the present application is that when the width of the geological disaster crack needs to be measured, first, the operator carries the device body 1 to the crack, then the measuring nail is placed into the semicircular limiting hole 41 opened on the positioning frame 40, so that the measuring nail is limited by the two groups of semicircular limiting holes 41, in this process, the guide groove 430 on the top of the end plate 43 guides the measuring nail, reducing the difficulty of the measuring nail entering the semicircular limiting hole 41, at the same time, the outer wall of the lifting block 42 is designed as an arc surface corresponding to the outer wall of the semicircular limiting hole 41, so that the outer wall of the lifting block 42 also limits the measuring nail, further ensuring the stability of the shape and sliding track of the measuring nail during the descending process, and the end plate 43 supports the top of the measuring nail to prevent the measuring nail from sliding out directly. Then, the drive handle 530 installed on the top of the screw rod 53 is rotated, so that the screw rod 53 starts to rotate, and because it is threadedly connected with the support frame 52, it drives the pressing block 54 to move downward under the action of the screw principle until the end of the pressing block 54 contacts with the measuring nail, at this time, the pressing block 54 continues to descend and pushes the measuring nail downward, so that the measuring nail starts to insert into one side of the crack. As the measuring nail starts to descend, the end plate 43 synchronously descends, at this time, the lifting block 42 slides in the mounting groove 411, at this time, the mounting groove 411 limits the sliding of the lifting block 42, further ensuring the stability of the lifting block 42 in supporting the measuring nail. The end plate 43 descends, and the linkage block 70 on the side wall of the end plate 43 drives the linkage frame 71 to synchronously move downward, through the arrangement of the linkage frame 71 and the linkage block 70, the sliding tracks of the two groups of end plates 43 are ensured to be the same, thereby ensuring that the end faces of the two groups of end plates 43 are continuously in the same plane, in this process, the linkage block 70 is limited by the sliding rod 73 to ensure the stability of the lifting track, and the linkage block 70 also extrudes the third return spring 72, so that the third return spring 72 is in a compressed state. In the process of descending the measuring nail, the arc surface of the lifting block 42 supports the outer wall of the measuring nail, effectively avoiding the bending deformation accident of the measuring nail during the descending process, ensuring the fixation of the sliding track and the shape of the measuring nail during the descending process, at the same time, the whole process of driving the measuring nail does not need to carry additional tools such as hammers, which not only reduces the burden of the staff carrying multiple tools, but also makes the method of limiting the measuring nail by the positioner 4 and pressing the measuring nail by the nail press 5 more safe compared with the traditional method of driving the measuring nail by hammer. When the measuring nail is punched in, the support frame 52 needs to be pulled to the direction of the sliding seat 50, and the shaft seat 51 and the butt joint seat 55 will slide synchronously during the process, until the end of the shaft seat 51 is attached to the inner wall of the sliding seat 50; at this time, the butt joint seat 55 has completely slid out of the positioning seat 56, so that the restriction of the butt joint seat 55 and the positioning seat 56 to the support frame 52 is removed, and then the support frame 52 can be rotated to a state of not shielding the through slot 30; During the rotation of the support frame 52, the pressing plate 520 will rotate synchronously, so that the pressing plate 520 is separated from the transmission rod 61, and the restriction of the end of the transmission rod 61 is removed; At the same time, as the butt joint seat 55 rotates with the support frame 52, the positioning block 550 will also rotate with the butt joint seat 55, so that the positioning block 550 is separated from the transmission rod 61, and the restriction of the two groups of transmission rods 61 is removed at this time; At this time, the transmission rod 61 will slide upward under the action of the second reset spring 62, so that the limiting push block 60 is separated from the limiting wheel 64, and the restriction of the limiting wheel 64 by the limiting push block 60 is removed at this time, so that the restriction of the outer wall of the positioning frame 40 is removed, and then the first reset spring 402 separates the two groups of positioning frames 40 through the limiting rod 401, and as the distance between the positioning frames 40 expands, the two groups of end plates 43 will also be separated, so that the end plates 43 are separated from the top of the measuring nail, and the restriction of the end plates 43 to the end of the measuring nail is contacted, and the distance between the end plates 43 is greater than the diameter of the top of the measuring nail at this time, so that the worker can pull the device body 1 upward, and the measuring nail will not be pulled upward during the process; Then, the measuring nail on the other side can be installed by changing the direction, and during the process of placing the measuring nail into the semicircular limiting hole 41, the measuring box 2 can be placed in a state perpendicular to the ground, and then the measuring nail is placed into a group of semicircular limiting holes 41, and then the support frame 52 is rotated in the opposite direction, so that it starts to drive the corresponding pressing plate 520 and butt joint seat 55 to rotate, and during the process, the pressing plate 520 and the positioning block 550 will extrude the end of the corresponding transmission rod 61, forcing the transmission rod 61 to slide into the installation box 3, and during the process, the middle of the transmission rod 61 will extrude the second reset spring 62, and as the transmission rod 61 slides, the inclined angle of the end of the limiting push block 60 will extrude the limiting wheel 64, forcing the limiting wheel 64 to push the two groups of positioning frames 40 through the transmission limiting block 63, until the end of the transmission rod 61 completely enters the installation box 3, at this time, the end of the pressing plate 520, the end surface of the positioning block 550 and the butt joint seat 55 will be attached to the end surface of the installation box 3, and at the same time, the limiting push block 60 will also be in a state of the side wall attached to the outer wall of the limiting wheel 64, so that the position of the two groups of positioning frames 40 is restricted and cannot be expanded outward; In the process of approaching each other of the positioning frame 40, the corresponding limiting rod 401 is pulled to slide, so that the end of the limiting rod 401 extrudes the first reset spring 402, so that the first reset spring 402 is in an energy storage state at this time; Subsequently, the support frame 52 is pushed, so that the shaft seat 51 and the butt joint seat 55 start to slide, until the butt joint seat 55 is completely entered into the positioning seat 56 and is attached to the inner wall of the positioning seat 56, at this time, the positioning block 550 also passes through the positioning groove 551, so that the longitudinal position of the shaft seat 51 and the butt joint seat 55 is fixed, and then the measuring nail can be pushed into the other side of the crack by rotating the driving handle 530 according to the above operation; After the installation of the measuring nails on both sides is completed, if the width change of the crack needs to be measured, the measuring ruler 20 can be pulled outwards by pulling the lug plate 201; the outer wall of the measuring ruler 20 and the measuring box 2 is provided with a scale, which is convenient for the operator to record the actual data; when measuring, the lug plate 201 is in contact with a group of measuring nails, then the measuring box 2 is pulled, and the scale on the measuring ruler 20 and the measuring box 2 is read, so that the spacing change between the two measuring nails can be obtained, so that the change data of the crack width is obtained, and the whole measuring operation is simple and convenient.

[0028] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A geological disaster crack measuring device, comprising a device body (1) consisting of a measuring box (2), a measuring scale (20) and a mounting box (3), characterized in that: The installation box (3) is installed at the end of the measuring box (2); The installation box (3) is provided with a positioner (4) for positioning and guiding the measuring nail, and the positioner (4) comprises: Two groups of positioning frames (40) are slidingly installed in the installation box (3), the outer walls of the two groups of positioning frames (40) are in contact with each other, a through slot (30) corresponding to the positioning frame (40) is formed in the installation box (3), the outer walls of the two groups of positioning frames (40) in contact with each other are each provided with a semicircular limiting hole (41) for guiding and limiting the measuring nail, and the installation box (3) is provided with an elastic mechanism corresponding to the positioning frame (40) to ensure that the outer walls of the two groups of positioning frames (40) are in contact with each other; A lifting block (42) is slidingly installed at the top of the positioning frame (40), one side of the outer wall of the lifting block (42) is designed in an arc shape corresponding to the inner wall of the semicircular limiting hole (41), the center point of the arc-shaped outer wall of the lifting block (42) is located on the same vertical line as the center point of the semicircular limiting hole (41), and an end plate (43) is installed at the top of the lifting block (42), and a guide groove (430) for guiding the sliding of the measuring nail is formed in the end plate (43); A nail pressing device (5) is installed at the top of the installation box (3) to push the measuring nail downward, the nail pressing device (5) comprises a supporting frame (52) arranged at the top of the device body (1), a screw rod (53) is threadedly installed in the middle of the supporting frame (52), and a pressing block (54) for pushing the measuring nail is rotatably installed at the bottom end of the screw rod (53); The installation box (3) is provided with a position limiter (6) for limiting the position of the positioning frame (40) to ensure that the two groups of positioning frames (40) are always in contact with each other in the working state; The installation box (3) is provided with a linkage reset device (7) corresponding to the end plate (43) to ensure the movement track and reset of the two groups of end plates (43). 2.The geological disaster crack measuring device according to claim 1, characterized in that: The positioner (4) further comprises a limiting rod (401) slidingly installed in the installation box (3) and fixedly connected with the outer wall of the positioning frame (40), and a plurality of limiting rods (401) are installed on the outer wall of each group of positioning frames (40); The cross section of the limiting rod (401) is designed in a T shape, a first reset spring (402) is connected with the inner wall of the installation box (3) and sleeved on the outer wall of the limiting rod (401), and the other end of the first reset spring (402) is connected with the end portion of the limiting rod (401) located in the installation box (3). 3.The geological disaster crack measuring device according to claim 1, characterized in that: The end plate (43) is designed in a semicircular plate and is symmetrically provided with two groups at the top of the positioning frame (40), and each group of end plates (43) is provided with a plurality of lifting blocks (42) slidingly connected with the positioning frame (40) at the bottom. The top of the positioning frame (40) is provided with a plurality of installation grooves (411) corresponding to the lifting block (42) at equal angles.

4. The geological disaster crack measuring device according to claim 3, characterized in that: The guide grooves (430) formed in the two groups of end plates (43) are the same in shape and are connected with each other, the guide grooves (430) are designed in a semicircular groove, and the top opening diameter of the guide grooves (430) is larger than the bottom opening diameter.

5. The geological disaster crack measuring device according to claim 1, characterized in that: The nail pressing device (5) comprises: The slide (50) is installed on the top of the mounting box (3) and located on one side of the through slot (30), the shaft seat (51) is rotatably connected with the support frame (52) and can only slide horizontally in the slide (50); The positioning seat (56) is installed on the top of the mounting box (3) and located on the other side of the through slot (30), the butt joint seat (55) is fixedly connected with the bottom of the side of the support frame (52) without the shaft seat (51) and is slidably installed in the positioning seat (56).

6. The geological disaster crack measuring device according to claim 5, characterized in that: The positioning seat (56) is provided with an opening for the butt joint seat (55) to slide out near the outer wall of one side of the through slot (30), and the corner of the opening of the positioning seat (56) and the top corner of the end of the butt joint seat (55) are both arc-shaped.

7. The geological disaster crack measuring device according to claim 5, characterized in that: The limiting block (63) is fixedly installed on the outer wall of the positioning frame (40) and is slidably connected with the mounting box (3), and the limiting wheel (64) is rotatably installed on the end of the limiting block (63); The limiting push block (60) is slidably installed in the mounting box (3) and corresponds to the limiting wheel (64), the bottom end of the limiting push block (60) is designed as an inclined corner near the side of the limiting wheel (64), and the bottom end of the limiting push block (60) is extruded by the limiting wheel (64) during the sliding process, when the side wall of the limiting push block (60) near the positioning frame (40) is attached to the outer wall of the limiting wheel (64), the two positioning frames (40) are in the attached state; The transmission rod (61) is fixedly installed on the top of the limiting push block (60) and is slidably connected with the mounting box (3), the top end of the transmission rod (61) protrudes from the mounting box (3), and the two transmission rods are respectively located in the slide (50) and the positioning seat (56), when the nail holder (5) is used, the top of the two transmission rods (61) is respectively located below the shaft seat (51) and the butt joint seat (55) and is attached to the bottom surface of the corresponding shaft seat (51) and butt joint seat (55); The transmission rod (61) is designed as a "cross" shape, and the second return spring (62) is installed on the inner wall of the mounting box (3). The pressing plate (520) is fixedly installed on the outer wall of the end of the support frame (52) rotatably connected with the shaft seat (51) for pushing the transmission rod (61) downward; 8.The geological disaster crack measuring device according to claim 7, characterized in that: The positioning block (550) is installed on the end of the butt joint seat (55) for pushing the transmission rod (61) downward, and the positioning groove (551) corresponding to the positioning block (550) is formed in the outer wall of the positioning seat (56); The pressing plate (520) and the positioning block (550) will extrude the end of the transmission rod (61) during the rotation of the support frame (52), so as to ensure that the transmission rod (61) will be pushed into the mounting box (3). When the shaft seat (51) slides to be attached to the inner wall of the slide (50) and the support frame (52) is rotated by 90°, the outer wall of the transmission rod (61) is attached to the outer wall of one side of the shaft seat (51) near the through slot (30), so as to limit the position of the shaft seat (51). 9.The geological disaster crack measuring device according to claim 8, characterized in that: ​ 10.The geological disaster crack measuring device according to claim 1, characterized in that: The linkage resetter (7) is symmetrically installed with two groups in the through groove (30), and the installation position of the linkage resetter (7) is staggered with the positioning frame (40), and the linkage resetter (7) comprises: A linkage block (70) is symmetrically installed with two groups on the outer wall of the end plate (43); A linkage frame (71) is slidingly installed in the through groove (30) and is symmetrically installed with two groups in the through groove (30); Wherein, each group of linkage frames (71) is slidingly connected with two linkage blocks (70) installed on the outer wall of different end plates (43), the linkage frame (71) is fixedly installed with a third reset spring (72) connected with the inner wall of the through groove (30) at the bottom, and the linkage frame (71) is fixedly installed with a sliding rod (73) slidingly connected with the installation box (3) at the bottom.

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