Crack displacement monitor for landslide

Abstract

The invention relates to the technical field of geological disaster monitoring equipment, in particular to a crack displacement monitor for landslide, which comprises a main machine body, a networking antenna, a stay wire mechanism, a mounting groove, a steel wire rope, a mounting base, a protective tube, a fixed column, a winding disc, a volute spiral spring, a steel wire fixing block, a ratchet wheel and a positioning stop lever, the protection pipe composed of the multiple pipe fittings with the diameters gradually reduced and connected in a sleeved mode stretches out layer by layer when the installation base is pulled out, the steel wire rope stretching out of the main machine body is wrapped and protected, and therefore corrosion of the steel wire rope or interference of measurement results caused by the outside in severe environments such as rainfall and snowfall is avoided; the technical effects of improving the working stability of the crack monitor and prolonging the service life of the crack monitor are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of geological disaster monitoring equipment, in particular to a crack displacement monitor for landslides. Background Art

[0002] Changing climate patterns in recent years may lead to more intensive summer rainfall, or even more frequent extreme rainfall events, and landslide disasters may become more serious in the future. Therefore, landslide monitoring and early warning have also received extensive attention from the country and society in recent years. Experts and scholars have carried out a lot of research, and the development of related instruments and equipment for landslide monitoring has also received more and more attention.

[0003] Landslide monitoring parameters include deformation, hydrology, meteorology and other types. Deformation mainly refers to the displacement change of landslide cracks. It is the most direct and effective parameter and the main basis for landslide early warning. The daily monitoring of landslide cracks is mainly carried out through crack displacement monitoring instruments to detect the displacement changes of cracks, mainly horizontal displacement changes, because once a landslide occurs, the horizontal displacement change of the crack is much greater than its vertical displacement, making it easier to monitor.

[0004] Commonly used crack displacement monitors are usually divided into two types: wire-type monitors and photoelectric monitors. Although photoelectric monitors can provide higher-precision crack displacement monitoring, they have strict requirements on environmental conditions and laser signals are easily interfered by external light and weather conditions. Therefore, in the field of landslide monitoring, wire-type crack displacement monitors with lower costs and better stability are often used to monitor landslide cracks. In the process of installing wire-type crack displacement monitors at both ends of landslide cracks, the staff needs to fix the monitor host and mobile pile support on the landslide surface on site, and cut steel wires of appropriate lengths and connect the two ends of the steel wires to the monitor host and mobile pile support with the help of wire lockers to reduce the impact of the environment on the monitoring process. It is even necessary to purchase PVC pipes nearby and wrap the exposed steel wires with PVC pipes. The entire operation process requires the use of many parts and the installation process is cumbersome and complicated, which greatly affects the installation efficiency of the staff and brings inconvenience to the monitoring of landslide cracks.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a crack displacement monitor for landslide. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art and solve the technical problem that the wire-pulling crack displacement monitor is inconvenient to install in a landslide area, the technical solution adopted by the present invention is: a crack displacement monitor for landslide described in the present invention includes a main body and a networking antenna installed on one side of the main body; it is characterized in that it also includes: a wire-pulling mechanism, the wire-pulling mechanism is installed in an installation groove opened inside the main body, the wire-pulling mechanism is used to reel the wire rope inside the main body, the extended end of the wire rope is fixedly connected to the installation base, a protective tube is sleeved between the main body and the installation base, one end of the protective tube is fixedly connected to the installation base, and the other end extends into the main body and cooperates with the outer wall of the main body to limit the position.

[0007] Preferably, the wire pulling mechanism comprises:

[0008] A fixing column, wherein the fixing column is fixedly connected in the mounting groove;

[0009] A winding reel, the winding reel is sleeved on the fixed column and is rotatably connected to the fixed column;

[0010] A spiral spring, one end of which is mounted on a fixed column, and the other end of which passes through a side wall of the winding disk and extends outward;

[0011] A steel wire fixing block is fixedly connected to a steel wire rope, the steel wire fixing block is detachably connected to the outer wall of the winding disk, and one end of the steel wire fixing block is clamped with a portion of a spiral spring extending out of the winding disk.

[0012] Preferably, a ratchet is fixedly connected to the side wall at one end of the winding disk, and a positioning stop rod that cooperates with part of the ratchet teeth of the ratchet is slidably installed in the installation groove. The positioning stop rod is elastically slidably connected to the installation groove along the groove wall of the installation groove, and the sliding stroke of the positioning stop rod is greater than the tooth width of the ratchet teeth on the ratchet.

[0013] Preferably, the protective tube is formed by a plurality of pipes with gradually decreasing diameters being socketed with each other, the protective tube that cooperates with the main body to limit the pipe diameter is the largest, and is slidably connected to the installation groove; the length of a single protective tube is less than the sliding distance of the protective tube in the installation groove.

[0014] Preferably, the protection tube is a telescopic bellows, and one end of the protection tube is limitedly matched with the host body and is sealed and connected to the wire rope extending groove of the installation groove.

[0015] Preferably, a locking spring groove is provided on the fixing column, and the central end of the spiral spring is inserted into the locking spring groove and is detachably connected to the fixing column.

[0016] Preferably, the portion of the positioning stop rod located in the mounting groove is made of a hard metal material, and the positioning stop rod further includes a control rod extending out of the mounting groove.

[0017] Preferably, the joystick is made of plastic material, and the thickness of the connection between the joystick and the positioning stop rod is smaller than the thickness of the joystick.

[0018] Preferably, threaded holes are provided on the main body and the mounting base, and the threaded holes are of the same size and matched with expansion bolts of the same specification.

[0019] Preferably, a receiving groove is provided at one end of the host body that is fixed close to the mounting base, and the length of the receiving groove is the same as the length of the mounting base.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. Before the specific installation work is carried out and the mounting base is still close to the side wall of the main body, the protective tube with one end fixedly connected to the mounting base and the other end extending into the main body is completely in the mounting groove. Once the installation work begins and the mounting base is pulled outward, the protective tube composed of multiple pipe fittings with gradually decreasing diameters and interconnected will also extend out layer by layer to wrap and protect the steel wire rope extending out of the main body, thereby avoiding corrosion to the steel wire rope or interference with the measurement results caused by the outside world in harsh environments such as rain and snow, and achieving the technical effect of improving the working stability of the crack monitor and extending its service life.

[0022] 2. When the staff pulls the mounting base outward to the appropriate position, the reel will be rotated and limited under the interference of the ratchet teeth of the ratchet wheel and the positioning lever. Therefore, after the staff pulls the mounting base to the appropriate position at the other end of the crack, the mounting base will stay there, making it easier for the staff to fix the mounting base on the landslide, reducing the workload of the staff and improving the installation efficiency of the crack monitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the first embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0026] Figure 3 is a partial structural cross-sectional view of the first embodiment of the present invention;

[0027] Figure 4 It is a three-dimensional structural cross-sectional view of the wire drawing structure and related structures of the present invention.

[0028] In the figure: 1. Host body; 2. Networking antenna; 3. Wire pulling mechanism; 4. Installation slot; 5. Wire rope; 6. Installation base; 7. Protective tube; 8. Fixed column; 9. Winding disk; 10. Vortex spring; 11. Wire fixing block; 12. Ratchet; 13. Positioning lever; 14. Lock spring slot; 15. Joystick; 16. Threaded hole; 17. Storage slot. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Embodiment 1:

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, an embodiment of the present invention provides a crack displacement monitor for landslides, including a main body 1 and a networked antenna 2 installed on one side of the main body 1; it is characterized in that it also includes: a wire pulling mechanism 3, the wire pulling mechanism 3 is installed in a mounting groove 4 opened inside the main body 1, the wire pulling mechanism 3 is used to reel up a steel wire rope 5 inside the main body 1, the extended end of the steel wire rope 5 is fixedly connected to the mounting base 6, a protective tube 7 is sleeved between the main body 1 and the mounting base 6, one end of the protective tube 7 is fixedly connected to the mounting base 6, and the other end extends into the main body 1 and cooperates with the outer wall of the main body 1 to limit the position.

[0032] As an implementation method of this embodiment: the wire pulling mechanism 3 includes:

[0033] A fixing column 8, wherein the fixing column 8 is fixedly connected in the mounting groove 4;

[0034] A winding reel 9, wherein the winding reel 9 is sleeved on the fixed column 8 and is rotatably connected to the fixed column 8;

[0035] A spiral spring 10, one end of which is mounted on the fixing column 8, and the other end of which passes through the side wall of the winding disk 9 and extends outward;

[0036] A wire fixing block 11 is fixedly connected to the wire rope 5 . The wire fixing block 11 is detachably connected to the outer wall of the winding drum 9 . One end of the wire fixing block 11 is clamped with the portion of the spiral spring 10 extending out of the winding drum 9 .

[0037] As an implementation mode of this embodiment: the protective tube 7 is formed by a plurality of pipes with gradually decreasing diameters being socketed with each other, the pipe diameter of the protective tube 7 that is limitedly matched with the main body 1 is the largest, and is slidably connected with the mounting groove 4; the length of a single protective tube 7 is less than the sliding distance of the protective tube 7 in the mounting groove 4.

[0038] As an implementation mode of this embodiment: a locking spring groove 14 is opened on the fixing column 8, and the center end of the spiral spring 10 is inserted into the locking spring groove 14 and detachably connected to the fixing column 8.

[0039] When installing the crack displacement monitor in a landslide area, the network antenna 2 is installed on the host body 1. After testing that the network function of the host body 1 is normal, the host body 1 can be fixed to one end of the crack in the landslide area. Since the wire rope 5 is wound in the host body 1 by the wire pulling mechanism 3, and the protruding end of the wire rope 5 is fixedly connected to the mounting base 6, the installer no longer needs to equip or use a wire locker to perform additional installation steps between the wire rope 5 and the mounting base 6. During the specific operation, it is only necessary to pull the mounting base 6 which is tightly attached to the side wall of the host body 1 by the winding elastic force of the volute spring 10 in the winding mechanism, and pull the mounting base 6 to the other end of the landslide crack. During the pulling process, the wire rope 5 wound on the winding drum 9 through the wire fixing block 11 is pulled out together, and then the mounting base 6 is fixed to the other end of the crack to complete the installation of the crack displacement monitor. Before the specific installation work is carried out, the mounting base 6 is still tightly attached to the side wall of the host body 1. When on the side wall of the main body 1, one end of the protective tube 7 is fixedly connected to the mounting base 6, and the other end extends into the main body 1. At this time, it is completely in the mounting groove 4. Once the installation work begins, when the mounting base 6 is pulled outward, the protective tube 7 composed of multiple pipe fittings with gradually decreasing diameters and mutually socketed will also extend out layer by layer, wrapping and protecting the steel wire rope 5 extending out of the main body 1, thereby avoiding corrosion of the steel wire rope 5 or interference with the measurement results caused by the outside world in harsh environments such as rain and snow, thereby achieving the technical effect of improving the working stability of the crack monitor and extending its service life; in particular, the center end of the spiral spring 10 of the winding mechanism is inserted into the locking spring groove 14 of the fixing column 8, so that the spiral spring 10 is detachably connected to the fixing column 8, so that even if the spiral spring 10 fails due to long-term use, the main body 1 can be disassembled and the spiral spring 10 can be replaced separately, thereby reducing the fault repair cost of the present invention and improving the utilization rate of the product.

[0040] As an implementation mode of this embodiment: a ratchet 12 is fixedly connected to the side wall at one end of the winding disk 9, and a positioning stop rod 13 that cooperates with part of the ratchet teeth of the ratchet 12 is slidably installed in the installation groove 4, and the positioning stop rod 13 is elastically slidably connected to the installation groove 4 along the groove wall of the installation groove 4, and the sliding stroke of the positioning stop rod 13 is greater than the tooth width of the ratchet teeth on the ratchet 12.

[0041] During use, when the wire rope 5 extends outward, the winding drum 9 is also driven by the wire fixing block 11 to rotate synchronously with the extension of the wire rope 5, and the winding drum 9 is always in a state of overcoming the elastic force of the spiral spring 10 during the rotation process. Therefore, before the fixing of the mounting base 6 is completed, the staff has to keep pulling the mounting base 6, otherwise the mounting base 6 will slide toward the main body 1 as the wire rope 5 is wound under the elastic force of the spiral spring 10. For this reason, a ratchet 12 is fixedly connected to the side wall of one end of the winding drum 9, and A positioning stop rod 13 that cooperates with part of the ratchet teeth of the ratchet 12 is slidably installed in the installation groove 4. Therefore, when the staff pulls the installation base 6 outward to a suitable position, the winding disk 9 will be rotated and limited under the interference of the ratchet teeth of the ratchet 12 and the positioning stop rod 13. Therefore, after the staff pulls the installation base 6 to a suitable position at the other end of the crack, the installation base 6 will stay there, thereby facilitating the staff to fix the installation base 6 on the landslide, reducing the workload of the staff and improving the installation efficiency of the crack monitor.

[0042] As an implementation mode of this embodiment: the portion of the positioning lever 13 located in the installation slot 4 is made of a hard metal material, and the positioning lever 13 further includes a manipulation lever 15 extending out of the installation slot 4 .

[0043] As an implementation mode of this embodiment: the operating rod 15 is made of plastic material, and the thickness of the connection between the operating rod 15 and the positioning blocking rod 13 is less than the thickness of the operating rod 15 .

[0044] During use, when the staff pulls the mounting base 6 to the other end of the landslide crack, it is necessary to find a suitable installation position, and there is a possibility that the specific position of the mounting base 6 needs to be adjusted multiple times. Therefore, in addition to the part located in the mounting groove 4, the positioning stop rod 13 also includes an operating rod 15 extending out of the mounting groove 4. When the staff pulls out the wire rope 5 to a length that is too long, pressing the operating rod 15 inward can release the limiting interference between the positioning stop rod 13 and the ratchet 12, so that the staff can readjust the position of the mounting base 6 to fix the mounting base 6. When the fixing work is completed, the staff can break off the plastic operating rod 15 extending out of the mounting groove 4 to avoid the failure of the limiting of the positioning stop rod 13 and the ratchet 12 caused by accidental touch by non-staff members. The thickness of the connection between the operating rod 15 and the positioning stop rod 13 is less than the thickness of the operating rod 15, which makes it easier for the staff to break it off.

[0045] As an implementation method of this embodiment: threaded holes 16 are provided on the host body 1 and the mounting base 6 . The threaded holes 16 are of the same size and are matched with expansion bolts of the same specification.

[0046] As an implementation mode of this embodiment: a receiving groove 17 is opened at one end of the host body 1 fixed close to the mounting base 6 , and the length of the receiving groove 17 is the same as the length of the mounting base 6 .

[0047] When in use, threaded holes 16 of the same size are opened on the main body 1 and the mounting base 6, and expansion bolts of the same specifications are used for installation, thereby achieving the technical effect that the main body 1 and the mounting base 6 can be fixed with the same installation tool; the length of the storage groove 17 opened at one end of the main body 1 fixed close to the mounting base 6 is the same as the length of the mounting base 6, so that the mounting base 6 can be stored in the storage groove 17 before it is installed, and when the mounting base 6 is pulled out, the lower end of the mounting base 6 can also be grasped, thereby facilitating the outward pulling of the mounting base 6, achieving the technical effect of further facilitating the installation work of the staff.

[0048] Embodiment 2:

[0049] like Figure 2 As shown, the difference between this embodiment and the first embodiment is that the protection tube 7 is a telescopic bellows, and one end of the protection tube 7 is limitedly matched with the host body 1 and is sealed and connected to the steel wire rope 5 extending out of the installation groove 4.

[0050] During use, when the steel wire rope 5 is protected by the mutually nested protective tubes 7, the requirement for the flatness of the landslide surface is high, and the landslide surface is also often uneven. If the landslide surface is too uneven, the mutually nested protective tubes 7 will cause the mounting base 6 to be unable to closely contact the landslide base at the other end of the crack. For this reason, the protective tube 7 of this example is made of PE plastic, and the two ends are respectively fixedly connected to the mounting base 6 and the telescopic bellows on the side wall of the main body 1. The plastic telescopic bellows has a strong deformation ability, so that even if there is a large height difference between the two ends of the crack, it can ensure that the mounting base 6 can be tightly attached to the landslide at the other end of the crack, thereby completing the technical effect of the installation work and expanding the technical effect of the applicable area of ​​the product.

[0051] The above shows and describes the basic principles, main features and significant advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above specific embodiments. Without departing from the spirit and scope of the present invention, the present invention may also be modified and improved to adapt to different usage environments and customer needs. These modifications and improvements fall within the scope of protection of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A crack displacement monitor for landslides, comprising a host body (1) and a networked antenna (2) mounted on one side of the host body (1); characterized in that: Also includes: A wire pulling mechanism (3), wherein the wire pulling mechanism (3) is installed in a mounting groove (4) provided inside the main body (1), and the wire pulling mechanism (3) is used to reel in a steel wire rope (5) inside the main body (1), and the protruding end of the steel wire rope (5) is fixedly connected to a mounting base (6), and a protective tube (7) is sleeved between the main body (1) and the mounting base (6), and one end of the protective tube (7) is fixedly connected to the mounting base (6), and the other end extends into the main body (1) and cooperates with the outer wall of the main body (1) to limit the position.

2. A crack displacement monitor for landslide according to claim 1, characterized in that: The wire pulling mechanism (3) comprises: A fixing column (8), wherein the fixing column (8) is fixedly connected in the mounting groove (4); A winding reel (9), wherein the winding reel (9) is sleeved on the fixed column (8) and is rotatably connected to the fixed column (8); A spiral spring (10), one end of which is mounted on the fixing column (8) and the other end of which passes through the side wall of the winding disk (9) and extends outward; A steel wire fixing block (11) is fixedly connected to a steel wire rope (5), the steel wire fixing block (11) is detachably connected to the outer wall of the winding drum (9), and one end of the steel wire fixing block (11) is clamped with a portion of the spiral spring (10) extending out of the winding drum (9).

3. A crack displacement monitor for landslide according to claim 2, characterized in that: A ratchet (12) is fixedly connected to the side wall of one end of the winding disk (9), and a positioning blocking rod (13) matching with part of the ratchet teeth of the ratchet (12) is slidably installed in the installation groove (4). The positioning blocking rod (13) is elastically slidably connected to the installation groove (4) along the groove wall of the installation groove (4), and the sliding stroke of the positioning blocking rod (13) is greater than the tooth width of the ratchet teeth on the ratchet (12).

4. A crack displacement monitor for landslide according to claim 3, characterized in that: The protective tube (7) is formed by a plurality of pipes with gradually decreasing diameters being sleeved together. The protective tube (7) that is limitedly matched with the main body (1) has the largest pipe diameter and is slidably connected to the mounting groove (4). The length of a single protective tube (7) is less than the slidable distance of the protective tube (7) in the mounting groove (4).

5. The crack displacement monitor for landslide according to claim 3, characterized in that: The protection tube (7) is a telescopic bellows, and one end of the protection tube (7) is limitedly matched with the main body (1) and is sealedly connected to the steel wire rope (5) extending out of the groove of the installation groove (4).

6. A crack displacement monitor for landslide according to claim 2, characterized in that: The fixing column (8) is provided with a lock spring groove (14), and the central end of the spiral spring (10) is inserted into the lock spring groove (14) and is detachably connected to the fixing column (8).

7. A crack displacement monitor for landslide according to claim 3, characterized in that: The portion of the positioning blocking rod (13) located in the installation slot (4) is made of a hard metal material, and the positioning blocking rod (13) further comprises an operating rod (15) extending out of the installation slot (4).

8. A crack displacement monitor for landslide according to claim 7, characterized in that: The operating rod (15) is made of plastic material, and the thickness of the connection between the operating rod (15) and the positioning blocking rod (13) is smaller than the thickness of the operating rod (15).

9. The crack displacement monitor for landslide according to claim 1, characterized in that: The host body (1) and the mounting base (6) are both provided with threaded holes (16), the threaded holes (16) are of the same size and are matched with expansion bolts of the same specification.

10. A crack displacement monitor for landslide according to claim 9, characterized in that: A receiving groove (17) is provided at one end of the host body (1) which is fixedly close to the mounting base (6); the length of the receiving groove (17) is the same as that of the mounting base (6).

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