A high-safety cofferdam slope surface deformation monitoring and early warning device

Abstract

This invention discloses a highly safe cofferdam slope surface deformation monitoring and early warning device, belonging to the field of slope early warning technology. The device includes four fixed threaded rods, each threadedly connected to a folding sleeve. A fixed base plate is movably connected to the bottom of the folding sleeve. Hexagonal slots are formed at the top of each threaded rod, and depth sensors are installed at the bottom of each rod. A braking device is movably connected to each threaded rod through the hexagonal slots. Sensing connection devices are fixedly connected to the front end and inner side of the fixed base plate, and pull ropes connect the sensing connection devices. This invention enables the folding sleeve and fixed base plate to be integrally connected and fixed, ensuring that the overall cofferdam slope surface deformation monitoring and early warning device does not occupy excessive open space while providing double reinforcement through the fixed threaded rods and fixed base plate, avoiding instability caused by a single fixed threaded rod connection.

Description

Technical Field

[0001] This invention relates to the field of slope early warning technology, and more specifically, to a highly secure cofferdam slope surface deformation monitoring and early warning device. Background Technology

[0002] A cofferdam is a temporary retaining structure built in water conservancy projects to construct permanent water facilities. Its function is to prevent water and soil from entering the construction site of the structure, so as to facilitate drainage, excavation of the foundation pit, and construction of the structure within the cofferdam.

[0003] In the construction of bridge or dam foundations, when the bridge piers and abutments are below the surface water level, various forms of cofferdam slopes are constructed according to local materials. There are many materials for protecting cofferdam slopes, such as earth-rock cofferdams, grass-soil cofferdams, wooden piling cofferdams, wooden cage cofferdams, and steel sheet pile cofferdams. Regardless of the material used to protect the cofferdam slope, it is necessary to monitor the surface deformation of the cofferdam slope in order to achieve timely early warning and provide safety for construction personnel.

[0004] Existing cofferdam slope surface deformation monitoring mostly involves monitoring equipment observing the cofferdam slope and issuing an early warning when surface deformation is detected. However, this type of cofferdam slope surface deformation monitoring is basically fixed to the slope surface by a single threaded rod. This fixing method needs to be improved in terms of structural strength. It is possible that the slope surface has not actually deformed, but the threaded rod has become loose, leading to incorrect judgment and affecting the normal early warning judgment. Summary of the Invention

[0005] The purpose of this invention is to provide a highly secure cofferdam slope surface deformation monitoring and early warning device to solve the problems mentioned in the background art: most existing cofferdam slope surface deformation monitoring devices observe the cofferdam slope and issue an early warning notification when slope surface deformation is detected. However, this type of cofferdam slope surface deformation monitoring is basically fixed to the slope surface by a single threaded rod. This fixing method needs to be improved in terms of structural strength. It is possible that the slope surface has not deformed, but the threaded rod has become loose, leading to incorrect judgment and affecting the normal early warning judgment.

[0006] A high-safety cofferdam slope surface deformation monitoring and early warning device includes four fixed threaded rods, which are threadedly connected to a folding sleeve. A fixed base plate is movably connected to the bottom of the folding sleeve. A hexagonal slot is opened at the top of each fixed threaded rod, and a depth sensor is installed at the bottom of each fixed threaded rod. A braking device is movably connected to each fixed threaded rod through the hexagonal slot. A sensing connection device is fixedly connected to the front end and the inner side of the fixed base plate, and a pull rope is connected between the sensing connection devices.

[0007] Preferably, the fixed base plate includes a stainless steel plate, the front end of which is provided with a perforated square block, the perforated square block having a threaded groove inside the perforation, the rear end of which is provided with a hinge, the front end of which is provided with a square connecting groove, and the front end and inner side of the square connecting groove are fixedly connected to the sensing connection device, the bottom back of the folding sleeve is connected to the hinge, and the folding sleeve and the fixed threaded rod are movably connected together through the hinge, and four rivets are connected in the middle of the stainless steel plate, and the stainless steel plate is fixedly installed on the surface of the cofferdam slope by the rivets.

[0008] Preferably, a row of connecting holes is fixedly provided on both sides of the stainless steel plate, a square groove is provided at the tail end of the stainless steel plate, a connecting block is provided at the tail end of the stainless steel plate and at the rear end of the square groove, and a remote control telescopic rod is provided at the tail end of the stainless steel plate and at the front end of the square groove.

[0009] Preferably, the folding sleeve includes a square cylindrical shell movably connected to the upper end of the perforated block, solar panels are fixedly disposed on both sides of the square cylindrical shell, a row of connecting posts are fixedly connected to the back of the solar panels, and an insert block is fixedly disposed at the bottom of the front of the square cylindrical shell. When the folding sleeve is in a vertical state, the insert block is connected into the square connecting groove.

[0010] Preferably, an LED light is fixedly installed on the front of the square cylindrical shell, an alarm is fixedly installed on the upper end of the LED light and on the front of the square cylindrical shell, and three sensor display lights are fixedly installed between the LED light and the plug block.

[0011] Preferably, an annular connector is fixedly connected to the top of the square cylindrical shell, a row of connecting rings is fixedly provided on the back of the square cylindrical shell, and a trigger is fixedly installed at the lower end of the connecting rings on the back of the square cylindrical shell. The square cylindrical shell has a connecting inner cavity, the upper half of which is a smooth groove and the lower half of which is a threaded groove. When the braking device moves down along the connecting inner cavity, the braking device will eventually connect to the annular connector.

[0012] Preferably, the braking device includes a brake rod connected in the connecting inner cavity, an electric telescopic rod connected inside the brake rod, a trigger block fixedly disposed on the top of the brake rod, a handle fixedly connected to the upper end of the trigger block, and a connecting hole opened at the handle position, and a connecting shaft fixedly disposed at the rear end of the trigger block. When the brake rod moves down along the connecting inner cavity, the connecting shaft passes through the connecting collar and finally inserts into the trigger to trigger the electric telescopic rod to retract. When the folding sleeve is folded, the handle of the braking device is inserted into the square groove.

[0013] Preferably, a rotating motor is fixedly connected to the bottom of the electric telescopic rod, and a hexagonal column is fixedly connected to the bottom of the rotating motor. When the brake rod moves down along the connecting inner cavity, the hexagonal column can be inserted into the hexagonal hole slot opened at the top of the fixed threaded rod.

[0014] Compared with the prior art, the advantages of this invention are:

[0015] (1) In this invention, the folding sleeve and the fixed base plate can be connected and fixed as a whole, so that the overall cofferdam slope surface deformation monitoring and early warning device does not occupy too much open area, and can be connected as a whole and reinforced by the fixed threaded rod and the fixed base plate, thus avoiding the instability caused by the single fixed threaded rod connection to the overall connection.

[0016] (2) In this invention, three sensor indicator lights are fixedly installed on the front of the folding sleeve, and each of these three sensor indicator lights is equipped with a sensor receiver, which can receive signals sent from the sensor connection device set at the front end and the inner side of the fixed base plate and the depth sensor set at the bottom of the fixed threaded rod, respectively. This enables accurate determination of deformation from the lateral, longitudinal and depth directions, allowing professional inspectors to make intuitive and quick judgments, thereby improving repair efficiency and judgment accuracy.

[0017] (3) In this invention, multiple triggering devices are provided on the connection between the braking device and the folding sleeve. The merging of the trigger block and the annular connector will stop the rotating motor, and the insertion of the connecting shaft into the trigger will trigger the retraction of the electric telescopic rod. This cleverly realizes the control of the braking device on the fixed threaded rod and the separation of the braking device from the fixed threaded rod, improving the automation of the overall device and making it easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection structure of the fixed base plate, folding sleeve, and braking device of the present invention.

[0020] Figure 3 This is an enlarged schematic diagram of the fixed base plate structure of the present invention;

[0021] Figure 4 This is an enlarged schematic diagram of the front structure of the folding sleeve of the present invention;

[0022] Figure 5 This is an enlarged schematic diagram of the back structure of the folding sleeve of the present invention;

[0023] Figure 6 This is an enlarged structural schematic diagram of the internal cross-section of the square cylindrical shell of the present invention;

[0024] Figure 7 This is an enlarged schematic diagram of the fixed threaded rod structure of the present invention;

[0025] Figure 8 This is an enlarged schematic diagram of the braking device structure of the present invention;

[0026] Figure 9 This is an enlarged schematic diagram of the internal cavity structure of the braking device of the present invention.

[0027] Explanation of the numbers in the diagram: 1. Fixed base plate; 101. Stainless steel plate; 102. Rivet; 103. Connecting hole; 104. Square groove; 105. Remote control telescopic rod; 106. Connecting block; 107. Opening square block; 108. Square connecting groove; 109. Hinge; 2. Folding sleeve; 201. Square cylindrical shell; 202. Solar panel; 203. Connecting column; 204. LED light; 205. Sensor display light; 20 6. Alarm; 207. Insert block; 208. Ring connector; 209. Connecting collar; 2010. Trigger; 2011. Connecting cavity; 3. Fixed threaded rod; 4. Braking device; 401. Brake lever; 402. Hexagonal column; 403. Connecting shaft; 404. Trigger block; 405. Handle; 406. Connecting hole; 407. Electric telescopic rod; 408. Rotating motor; 5. Sensor connection device; 6. Pull rope. Detailed Implementation

[0028] Example 1:

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 7 A high-safety cofferdam slope surface deformation monitoring and early warning device includes four fixed threaded rods 3, which are threadedly connected to a folding sleeve 2. A fixed base plate 1 is movably connected to the bottom of the folding sleeve 2. A hexagonal slot is opened at the top of the fixed threaded rod 3, and a depth sensor is set at the bottom of the fixed threaded rod 3. A braking device 4 is movably connected to the fixed threaded rod 3 through the hexagonal slot. A sensing connection device 5 is fixedly connected to the front end and the inner side of the fixed base plate 1. A pull rope 6 is connected between the sensing connection devices 5.

[0030] The fixed base plate 1 includes a stainless steel plate 101. A perforated square block 107 is provided at the front end of the stainless steel plate 101. A threaded groove is provided inside the perforation of the square block 107. A hinge 109 is provided at the rear end of the square block 107. A square connecting groove 108 is provided at the front end of the square block 107, and a sensing connection device 5 is fixedly connected to the front end and inner side of the square connecting groove 108. The hinge 109 is connected to the bottom back of the folding sleeve 2, and the folding sleeve 2 and the fixed threaded rod 3 are movably connected together through the hinge 109. Four rivets 102 are connected in the middle of the stainless steel plate 101, and the stainless steel plate 101 is fixedly installed on the surface of the cofferdam slope by the rivets 102. The threaded rod 3 is inserted into the pre-drilled cofferdam slope surface through the folded sleeve 2 and the perforated block 107. After the threaded rod 3 is fully inserted into the drilled hole, the folded sleeve 2 can be folded and merged onto the fixed base plate 1 through the hinge 109. At this time, the fixed base plate 1 has been fixedly installed on the cofferdam slope surface by the rivet 102. Thus, the folded sleeve 2 and the fixed base plate 1 can be connected and fixed as a whole. This allows the overall cofferdam slope surface deformation monitoring and early warning device to not occupy too much open area, and to be connected as a whole and reinforced by the threaded rod 3 and the fixed base plate 1. This avoids the instability caused by the connection of the single threaded rod 3 to the overall connection.

[0031] Please see Figure 3 A row of connecting holes 103 are fixedly provided on both sides of the stainless steel plate 101. A square groove 104 is provided at the tail end of the stainless steel plate 101. A connecting block 106 is provided at the tail end of the stainless steel plate 101 and at the rear end of the square groove 104. A remote control telescopic rod 105 is provided at the tail end of the stainless steel plate 101 and at the front end of the square groove 104. When the folding sleeve 2 is folded, the connecting post 203 will be inserted into the connecting hole 103. At the same time, the handle 405 of the braking device 4 will also be inserted into the square groove 104, thereby further strengthening the fixation of the folding sleeve 2.

[0032] Please see Figure 4 The folding sleeve 2 includes a square cylindrical shell 201 movably connected to the upper end of the perforated square block 107. Solar panels 202 are fixedly installed on both sides of the square cylindrical shell 201. A row of connecting posts 203 is fixedly connected to the back of the solar panels 202. An insert block 207 is fixedly installed at the bottom of the front of the square cylindrical shell 201. When the folding sleeve 2 is in a vertical state, the insert block 207 is connected into the square connecting groove 108. By installing solar panels 202 on both sides of the square cylindrical shell 201, the alarm 206 and three sensor display lights 205 on the folding sleeve 2 are provided with converted electrical energy, thereby improving the overall energy storage capacity of the device.

[0033] Please see Figure 4An LED light 204 is fixedly installed on the front of the square cylindrical shell 201. An alarm 206 is fixedly installed on the upper end of the LED light 204 and on the front of the square cylindrical shell 201. Three sensor indicator lights 205 are fixedly installed between the LED light 204 and the plug block 207. The three sensor indicator lights 205 can each display a different color of light, and each of the three sensor indicator lights 205 is equipped with a sensor receiver, which can receive signals sent from the sensor connection device 5 set at the front end and the inner side of the fixed base plate 1, as well as signals sent from the depth sensor set at the bottom of the fixed threaded rod 3, so as to accurately detect the alarm. The system accurately determines deformation from the lateral, longitudinal, and depth directions, enabling professional inspectors to make intuitive and rapid judgments, thus improving repair efficiency and accuracy. Whenever deformation displacement is detected by the aforementioned sensor connection device 5 and depth sensor, the alarm 206 will sound in real time to provide timely reminders. In addition, the LED light 204 is constantly on 24 hours a day. Some passersby may not notice the deformation monitoring and early warning device on the surface of the cofferdam slope when passing by. The purpose of setting up the LED light 204 is to remind passersby to pay attention to their footing, thereby protecting the deformation monitoring and early warning device on the surface of the cofferdam slope.

[0034] Please see Figure 5 and Figure 6 A ring connector 208 is fixedly connected to the top of the square cylindrical shell 201. A row of connecting collars 209 is fixedly provided on the back of the square cylindrical shell 201. A trigger 2010 is fixedly installed at the lower end of the connecting collars 209 and on the back of the square cylindrical shell 201. The square cylindrical shell 201 has a connecting inner cavity 2011. The upper half of the connecting inner cavity 2011 is a smooth groove, and the lower half of the connecting inner cavity 2011 is a threaded groove. When the braking device 4 moves down along the connecting inner cavity 2011, the braking device 4 will eventually connect to the ring connector 208. The threaded groove of the connecting inner cavity 2011 is used to connect and fix the threaded rod 3. The smooth groove of the connecting inner cavity 2011 is used to connect the brake rod 401. The radius of the threaded groove is larger than the radius of the smooth groove. In addition, the threaded groove of the connecting inner cavity 2011 and the threaded groove of the open square block 107 can be combined into a complete thread when the folded sleeve 2 is in a vertical state. The length of the threaded groove of the connecting inner cavity 2011 is the same as that of the brake rod 401.

[0035] Please see Figure 8The braking device 4 includes a brake rod 401 connected in the connecting cavity 2011. An electric telescopic rod 407 is connected inside the brake rod 401. A trigger block 404 is fixedly installed on the top of the brake rod 401. A handle 405 is fixedly connected to the upper end of the trigger block 404. A connecting hole 406 is opened at the handle position of the handle 405. A connecting shaft 403 is fixedly installed at the rear end of the trigger block 404. When the brake rod 401 moves down along the connecting cavity 2011, the connecting shaft 403 passes through the connecting collar 209 and finally inserts into the trigger 2010 to trigger the electric telescopic rod 407 to retract. When the folding sleeve 2 is folded, the handle 405 of the braking device 4 is inserted into the square groove 104. By controlling the extension of the remote telescopic rod 105, the remote telescopic rod 105 will pass through the connecting hole 406 above the handle 405 and insert into the connecting block 106, thereby completing the positioning and fixing of the braking device 4.

[0036] Please see Figure 8 and Figure 9 The bottom of the electric telescopic rod 407 is fixedly connected to a rotating motor 408, and the bottom of the rotating motor 408 is fixedly connected to a hexagonal post 402. When the brake rod 401 moves down along the connecting inner cavity 2011, the hexagonal post 402 can be inserted into the hexagonal hole slot opened at the top of the fixed threaded rod 3. When the brake rod 401 just moves down and the hexagonal post 402 is inserted into the hexagonal hole slot at the top of the fixed threaded rod 3, the rotating motor 408 is activated, and the rotating motor 408 rotates to drive the fixed threaded rod 3. The rod 3 rotates, causing the fixed threaded rod 3 to rotate and insert into the pre-drilled hole. As the brake rod 401 continues to move down along the connecting inner cavity 2011, the trigger block 404 merges with the annular connector 208, which stops the rotating motor 408. As the electric telescopic rod 407 retracts, the hexagonal column 402 disengages from the hexagonal slot at the top of the fixed threaded rod 3, and the fixed threaded rod 3 moves to be flush with the opening block 107, thus enabling the folding of the folding sleeve 2.

[0037] The specific working principle of the present invention is as follows: First, determine the specific location for the installation of the cofferdam slope surface deformation monitoring and early warning device, and make a pre-positioning hole according to the location. Then, align the opening block 107 of the fixed base plate 1 with the pre-positioned hole, and at this time, the folding sleeve 2 is in a vertical state and aligned with the opening block 107. Then, use the rivet 102 to fix the stainless steel plate 101 on the positioned cofferdam slope surface.

[0038] Then, holding handle 405, the brake lever 401 is moved down along the connecting inner cavity 2011, and it is confirmed that the hexagonal column 402 is inserted into the hexagonal slot at the top of the fixed threaded rod 3. Then, the rotating motor 408 is started, and the rotating motor 408 drives the fixed threaded rod 3 to rotate, so that the fixed threaded rod 3 rotates and inserts into the pre-drilled hole. When the brake lever 401 continues to move down along the connecting inner cavity 2011, the trigger block 404 will merge with the annular connector 208. At this time, the rotating motor 408 will be stopped. At the same time, the connecting shaft 403 will pass through the connecting collar 209 and finally insert into the trigger 2010 to trigger the electric telescopic rod 407 to retract. The hexagonal column 402 is disengaged from the hexagonal slot at the top of the fixed threaded rod 3, and the fixed threaded rod 3 just moves to be flush with the opening block 107.

[0039] Then fold the folding sleeve 2. At this time, the connecting post 203 will be inserted into the connecting hole 103, and the handle 405 of the braking device 4 will also be inserted into the square groove 104. By controlling the extension of the remote telescopic rod 105, the remote telescopic rod 105 will pass through the connecting hole 406 above the handle 405 and be inserted into the connecting block 106, thereby completing the fixed connection between the braking device 4, the folding sleeve 2 and the fixed base plate 1.

[0040] Finally, the pull rope 6 is connected via the sensor connection device 5. Each of the three sensor indicator lights 205 is equipped with a sensor receiver. When there is deformation on the surface of the cofferdam slope from the lateral, longitudinal and depth directions, the three sensor indicator lights 205 can receive signals sent from the sensor connection device 5 set at the front end and inner side of the fixed base plate 1 and the depth sensor set at the bottom of the fixed threaded rod 3, respectively, so as to make accurate judgment and display.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-safety cofferdam slope surface deformation monitoring and early warning device, comprising four fixed threaded rods, characterized in that: The fixed threaded rod is threadedly connected inside the folding sleeve. The bottom of the folding sleeve is movably connected to a fixed base plate. The top of the fixed threaded rod is provided with a hexagonal slot, and the bottom of the fixed threaded rod is provided with a depth sensor. The fixed threaded rod is movably connected to a braking device through the hexagonal slot. The front end and inner side of the fixed base plate are fixedly connected to a sensing connection device, and a pull rope is connected between the sensing connection devices. The fixed base plate includes a stainless steel plate. The front end of the stainless steel plate is provided with a square block with an opening. A threaded groove is provided inside the opening of the square block. A hinge is provided at the rear end of the square block. A square connecting groove is provided at the front end of the square block. The sensing connection device is fixedly connected to the front end and the inner side of the square connecting groove. The hinge is connected to the back of the bottom of the folding sleeve. The folding sleeve and the fixed threaded rod are movably connected together through the hinge. Four rivets are connected in the middle of the stainless steel plate. The stainless steel plate is fixedly installed on the surface of the cofferdam slope through the rivets. The folding sleeve includes a square cylindrical shell movably connected to the upper end of the perforated block. Solar panels are fixedly installed on both sides of the square cylindrical shell. A row of connecting posts is fixedly connected to the back of the solar panels. An insert block is fixedly installed at the bottom of the front of the square cylindrical shell. When the folding sleeve is in a vertical state, the insert block is connected into the square connecting groove. An LED light is fixedly installed on the front of the square cylindrical shell. An alarm is fixedly installed on the upper end of the LED light and on the front of the square cylindrical shell. Three sensor display lights are fixedly installed between the LED light and the plug block. The top of the square cylindrical shell is fixedly connected to an annular connector, and a row of connecting rings is fixedly provided on the back of the square cylindrical shell. A trigger is fixedly installed at the lower end of the connecting rings on the back of the square cylindrical shell. The square cylindrical shell has a connecting cavity. The upper half of the connecting cavity is a smooth groove, and the lower half of the connecting cavity is a threaded groove. When the braking device moves down along the connecting cavity, the braking device will eventually connect to the annular connector. The braking device includes a brake rod connected in the connecting cavity, an electric telescopic rod connected inside the brake rod, a trigger block fixedly installed on the top of the brake rod, a handle fixedly connected to the upper end of the trigger block, a connecting hole opened at the handle position, and a connecting shaft fixedly installed at the rear end of the trigger block.

2. The high-safety cofferdam slope surface deformation monitoring and early warning device according to claim 1, characterized in that: A row of connecting holes is fixedly provided on both sides of the stainless steel plate. A square groove is opened at the tail end of the stainless steel plate. A connecting block is provided at the tail end of the stainless steel plate and at the rear end of the square groove. A remote control telescopic rod is provided at the tail end of the stainless steel plate and at the front end of the square groove.

3. The high-safety cofferdam slope surface deformation monitoring and early warning device according to claim 2, characterized in that: As the brake lever moves down along the connecting cavity, the connecting shaft passes through the connecting collar and is eventually inserted into the trigger to trigger the retraction of the electric telescopic rod, wherein when the folding sleeve is folded, the handle of the braking device is inserted into the square groove.

4. The high-safety cofferdam slope surface deformation monitoring and early warning device according to claim 3, characterized in that: The bottom of the electric telescopic rod is fixedly connected to a rotating motor, and the bottom of the rotating motor is fixedly connected to a hexagonal column. When the brake rod moves down along the connecting inner cavity, the hexagonal column can be inserted into the hexagonal hole slot opened at the top of the fixed threaded rod.

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