Ground subsidence layering mark convenient to install

Abstract

The invention relates to the field of monitoring devices, in particular to a ground subsidence layering mark convenient to install, which comprises a mark post and a protection tube for inserting the mark post, a movable rod joint is installed in one end of the protection tube, a return joint is arranged at one end of the mark post, a connecting block is installed on the movable rod joint, and a locking mechanism is installed on the connecting block. A tie-back groove is formed in the end face of the tie-back head, at least two locking grooves are formed in the side wall of the tie-back groove, the locking mechanism comprises at least two locking claws hinged to the side wall of the connecting block through torsional springs, the connecting block is connected with the tie-back groove in an inserted mode, and each locking claw is connected with the corresponding locking groove in an inserted mode. The locking claws gradually incline in the direction away from the connecting block in the direction away from the bottom wall of the tie-back groove, when the locking claws are rotated till the locking claws abut against the connecting block, the two locking claws and the connecting block are smoothly inserted into the tie-back groove, and a positioning assembly used for inserting and positioning the marker post is installed on the protection pipe. The effect of improving the connecting efficiency of the marker post and the movable connector is achieved.

Description

Technical Field

[0001] This application relates to the field of monitoring devices, and particularly to a ground settlement layer marker that is easy to install. Background Art

[0002] A layer marker is a monitoring marker buried near the boundary of loose soil layers at different depths for measuring relative displacement. It is an important facility for monitoring ground settlement, which can systematically understand the compression deformation of the strata, analyze the layer position and cause of ground settlement, and provide a scientific basis for formulating scientific and reasonable measures to control ground settlement.

[0003] A layer marker usually includes a protection pipe, a benchmark, a layer marker head, and a bottom. The lower end of the protection pipe is connected to the bottom of the layer marker. A movable rod joint is pre-installed at one end of the bottom close to the protection pipe. The movable rod joint is located inside the protection pipe, and a threaded block is provided on the movable rod joint. One end of the benchmark is provided with a return joint, and a threaded groove is provided on the bottom surface of the return joint. During the construction process, a crane or other lifting equipment is required to install the protection pipe together with the bottom into the underground drill hole. Subsequently, the return joint of the benchmark is placed at the lower end and inserted into the protection pipe from top to bottom until the threaded groove aligns with and contacts the threaded block. Then, the staff rotates the benchmark on the ground to drive the rotation of the return joint at the lower end of the benchmark until the return joint is threadedly connected to the threaded block, thus completing the installation between the benchmark and the movable rod joint.

[0004] During the connection process between the return joint and the threaded block, the starting points of the threads of the return joint and the threaded block need to be precisely aligned. Otherwise, the threads on the return joint may get stuck or "skip" the threads on the threaded block, resulting in difficult connection. However, due to the long lengths of the protection pipe and the benchmark, it is more difficult to precisely align the starting points of the threads of the return joint and the threaded block during the process of remotely rotating the upper end of the benchmark to drive the threaded connection between the return joint and the threaded block, resulting in a low connection efficiency between the benchmark and the movable joint. Summary of the Invention

[0005] In order to improve the connection efficiency between the benchmark and the movable joint, this application provides a ground settlement layer marker that is easy to install.

[0006] A ground settlement layer marker that is easy to install provided by this application adopts the following technical solution: A ground settlement layer marker that is convenient for installation, comprising a marking rod and a protective tube for inserting the marking rod therein. An active rod joint is installed inside one end of the protective tube, and a return joint is provided at one end of the marking rod. A connecting block is installed on the active rod joint, and a locking mechanism is installed on the connecting block. A return connection groove is formed on the end face of the return joint, and at least two locking grooves are formed on the side wall of the return connection groove. The locking mechanism includes at least two locking claws hinged to the side wall of the connecting block through a torsion spring. The connecting block is inserted into the return connection groove, and each locking claw is inserted into a corresponding locking groove. The locking claw gradually inclines away from the connecting block in the direction away from the bottom wall of the return connection groove. When the locking claw is rotated until it abuts against the connecting block, the two locking claws and the connecting block are smoothly inserted into the return connection groove. A positioning component for positioning the insertion of the marking rod is installed on the protective tube.

[0007] By adopting the above technical solution, when the connecting block is inserted into the return connection groove, the side wall of the return connection groove pushes each locking claw to rotate towards the connecting block, so that the locking claw can be smoothly inserted into the return connection groove. At this time, the torsion spring in each locking claw is in a state of storing energy. When the locking claw completely enters the return connection groove and aligns with the locking groove, the locking claw rotates away from the connecting block under the action of the torsion spring, so as to complete the insertion between the locking claw and the locking groove. This not only simplifies the installation steps, improves the connection efficiency between the marking rod and the active joint, but also effectively reduces the occurrence of connection failure problems caused by misaligned threads. At the same time, the inclined design of the locking claw makes the insertion process smoother and reduces the operation difficulty. The setting of the positioning component facilitates each locking claw to accurately insert into the corresponding locking groove.

[0008] Preferably, at least two reinforcing holes are further formed on the end face of the return joint where the return connection groove is formed. Each reinforcing hole communicates with a corresponding locking groove. An interference fit reinforcing rod is arranged in each reinforcing hole, and one end of each reinforcing rod abuts against the side wall of the corresponding locking claw away from the bottom wall of the return connection groove.

[0009] By adopting the above technical solution, before the return joint is connected to the connecting block, each reinforcing rod is pre-inserted into the reinforcing hole, and the lower end of the reinforcing rod extends out of the reinforcing hole, while the upper end of the reinforcing rod is completely placed inside the reinforcing hole. As the return connection groove is inserted into the connecting block and the locking claw is completely inserted into the locking groove, the return joint continues to move towards the connecting block. At this time, the active rod joint abuts against each reinforcing rod, and due to the large gravity of the marking rod, the active rod gives a reaction force to each reinforcing rod to insert the reinforcing rod into the locking groove and press against each corresponding locking claw. The reinforcing rod in the reinforcing hole can effectively enhance the stability of the locking claw, thereby ensuring the stable connection between the marking rod and the protective tube. In addition, the design of the reinforcing rod also improves the structural strength of the entire layer marker, enabling it to maintain a good working state during long-term monitoring and reducing the maintenance frequency.

[0010] Preferably, the side wall of the connecting block is also fixedly connected with limiting blocks having the same number as the locking claws, and each of the limiting blocks abuts against a side wall of the corresponding locking claw away from the reinforcement rod.

[0011] By adopting the above technical solution, the limit block can limit the range of motion of the locking claw, reducing the occurrence of the locking claw affecting the connection stability due to excessive deflection. Specifically, when the locking claw rotates in the direction away from the connection block under the force of the torsion spring, the limit block can prevent the locking claw from further deviating from the original position, ensuring that the locking claw is clamped between the limit block and the reinforcement rod, thereby improving the installation accuracy and reliability between the benchmark and the movable rod joint.

[0012] Preferably, the return joint includes a fixing portion fixedly connected to the benchmark rod, and also includes a mounting portion detachably connected to the fixing portion, the end face of the fixing portion is provided with an annular groove, the annular groove is sleeved on the outside of the return groove, an end face of the mounting portion close to the fixing portion is fixedly connected with a mounting ring, the mounting ring is threadedly connected to the annular groove, each of the locking grooves passes through an end face of the fixing portion close to the mounting portion, an end face of the mounting ring facing away from the fixing portion is fixedly connected with an auxiliary rod, an end face of the movable rod joint close to the mounting ring has an auxiliary groove, and the auxiliary rod is plugged into the auxiliary groove.

[0013] By adopting the above technical solution, when the return joint is locked with the connection block, the auxiliary rod is plugged into the auxiliary groove. When the layered mark needs to be removed, the mark rod can be rotated, and the auxiliary rod limits the rotation of the installation part. Therefore, the rotation of the mark rod drives the fixed part to rotate relative to the installation part. When the installation ring is separated from the annular groove, the fixed part and the installation part are separated. At this time, the mark rod can be pulled upward to separate from the protective tube, and then the protective tube can be removed. The operation is simple and convenient.

[0014] Preferably, a surface of the movable rod joint close to the benchmark is provided with a preset groove, a preset block is threadedly connected to the preset groove, the connecting block is fixedly connected to the preset block, and the auxiliary groove is provided on the preset block.

[0015] By adopting the above technical solution, it is convenient to complete the assembly between the connecting block and the movable rod joint.

[0016] Preferably, a sliding groove is provided on the side wall of the preset groove, a locking rod is slidably connected in the sliding groove, a spring is installed between the locking rod and the bottom wall of the sliding groove, and a plug-in groove is provided on one side wall of the auxiliary rod, one end of the locking rod is plugged into the plug-in groove, and the other end is plugged into the sliding groove.

[0017] By adopting the above technical solution, before installing the benchmark in the protection tube, the locking rod is first fully retracted into the inside of the chute, and then the preset block is threadedly connected to the preset groove. The locking rod abuts against the side wall of the preset block, and the spring is in a compressed state. After the locking between the return joint and the connecting block is completed, the benchmark is rotated to drive the connecting block and the preset block to rotate. The preset block rotates and gradually moves in the direction close to the bottom wall of the preset groove. When the preset block moves to disengage from the locking rod, the locking rod moves in the direction close to the insertion slot under the action of the spring until one end of the locking rod is inserted into the insertion slot, thus strengthening the connection between the return joint and the movable rod joint. The rotation and tightening directions of the preset block and the preset groove are the same as those of the mounting ring and the annular groove. Therefore, when the benchmark is rotated in one direction, the mounting ring has been tightened with the annular groove to the limit position. At this time, the benchmark can drive the preset block to rotate and tighten into the preset groove through the auxiliary rod. When the benchmark is rotated in the reverse direction, since the locking rod is inserted into the insertion slot to complete the locking of the preset block and the mounting ring, the benchmark can gradually disengage from the mounting part at this time.

[0018] Preferably, a long hole communicating with the chute is provided on one end face of the movable rod joint, and an adjusting block is fixedly connected to one side wall of the locking rod. The adjusting block is slidably inserted into the long hole.

[0019] By adopting the above technical solution, the sliding insertion design of the adjusting block and the insertion slot enables the adjusting block to be conveniently manually operated during installation, so that the locking rod is retracted into the chute, and thus it is convenient for the installation between the preset block and the preset groove.

[0020] Preferably, the diameter of the locking rod is smaller than the diameter of the insertion slot.

[0021] By adopting the above technical solution, it is convenient for the locking rod to be smoothly inserted into the inside of the insertion slot.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The design of the locking mechanism enables the connection process between the return joint and the movable rod joint to eliminate the need for precise alignment of the thread starting point, improving the connection efficiency between the benchmark and the movable joint; 2. The reinforcing rod in the reinforcing hole can effectively enhance the stability of the locking claw, thereby ensuring the stable connection between the benchmark and the protection tube; 3. One end of the locking rod is inserted into the insertion slot, strengthening the connection between the return joint and the movable rod joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram showing the connection between the benchmark and the protection tube in the embodiment of the present application.

[0024] Figure 2 is a schematic structural diagram showing the connection between the movable rod joint and the return joint in the embodiment of the present application.

[0025] Figure 3 This is a schematic structural diagram showing the separation of the movable rod joint from the return joint in an embodiment of the present application.

[0026] Figure 4 It shows Figure 2 an enlarged view of part A in

[0027] Explanation of reference numerals: 1, reference rod; 11, guide groove; 2, protection tube; 21, bottom of the mark; 3, movable rod joint; 31, preset groove; 32, long slot; 4, return joint; 41, return connection groove; 42, locking groove; 43, reinforcement hole; 44, fixing part; 441, annular groove; 45, installation part; 451, installation ring; 46, auxiliary rod; 461, insertion slot; 5, connection block; 51, limiting block; 6, locking mechanism; 61, locking claw; 62, reinforcement rod; 7, positioning component; 71, buckle; 72, guide block; 8, preset block; 81, auxiliary groove; 82, sliding groove; 9, adjustment component; 91, locking rod; 92, spring; 93, adjustment block. Detailed implementation manners

[0028] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0029] An embodiment of the present application discloses a ground settlement layered mark that is convenient for installation, including a reference rod 1 and a protection tube 2 for inserting the reference rod 1 inside. The lower end of the protection tube 2 is connected to the bottom of the mark 21. A movable rod joint 3 is pre-installed at one end of the bottom of the mark 21 close to the protection tube 2. The movable rod joint 3 is located inside the protection tube 2. One end of the reference rod 1 is provided with a return joint 4. During construction, the movable rod joint 3 is placed at the lower end of the protection tube 2 to vertically install the protection tube 2, and the return joint 4 is used to connect with the movable rod joint 3. A connection block 5 is fixedly connected to the movable rod joint 3, and a locking mechanism 6 for locking between the connection block 5 and the movable rod joint 3 is installed on the connection block 5.

[0030] A return connection groove 41 is opened on the end face of the return joint 4 away from the reference rod 1. The locking mechanism 6 includes at least two locking claws 61 hinged to the side wall of the connection block 5 through a torsion spring. The locking claws 61 are inclined gradually away from the connection block 5 from top to bottom. At least two locking grooves 42 are opened on the side wall of the return connection groove 41. One locking groove 42 corresponds to one locking claw 61. During the process of gradually inserting the connection block 5 into the return connection groove 41, the side wall of the return connection groove 41 pushes each locking claw 61 to gradually move towards the direction close to the connection block 5, so that each locking claw 61 can smoothly enter the return connection groove 41 and be inserted into the corresponding locking groove 42.

[0031] In order to reduce the occurrence of deviation during the connection between the return joint 4 and the connecting rod, a positioning assembly 7 is installed on the protection tube 2. The positioning assembly 7 includes a buckle 71 fastened to the upper end of the protection tube 2 by screws, and a guide block 72 is fixedly connected to the inner wall of the buckle 71. A vertical guide groove 11 is provided at the outer wall of the pole 1, and the guide block 72 is slidably plugged into the guide groove 11, so as to guide the locking claw 61 to correctly align with the locking groove 42.

[0032] In addition, in order to further enhance the stability of the connection, at least two reinforcement holes 43 are formed on the end surface of the return joint 4. Each reinforcement hole 43 is connected to the corresponding locking groove 42. A reinforcement rod 62 is interference-fitted in each reinforcement hole 43.

[0033] Before the return joint 4 is installed with the connection block 5, the lower end of the reinforcement rod 62 extends out of the reinforcement hole 43, and the upper end of the reinforcement rod 62 is separated from the locking groove 42 and completely retracted into the reinforcement hole 43. After the connection block 5 is plugged into the return groove 41, the lower end of the reinforcement rod 62 is completely retracted into the reinforcement hole 43, and the upper end of the reinforcement rod 62 abuts against the lower surface wall of the corresponding locking claw 61.

[0034] During the process of the connecting block 5 being gradually inserted into the reconnecting groove 41 , due to the greater gravity of the benchmark rod 1 , the benchmark rod 1 and the movable rod joint 3 move relative to each other, so that the movable rod joint 3 exerts a force on the reinforcing rod 62 , causing the reinforcing rod 62 to be inserted into the corresponding locking groove 42 .

[0035] Two limit blocks 51 are fixedly connected to the side wall of the connection block 5, and the limit blocks 51 are used to limit the movement range of the locking claw 61. One limit block 51 corresponds to one locking claw 61, and each limit block 51 abuts against a side wall of the corresponding locking claw 61 away from the reinforcement rod 62. When the lower end of the reinforcement rod 62 is completely retracted into the corresponding reinforcement hole 43, the reinforcement rod 62 and the limit block 51 together clamp the locking claw 61 therebetween.

[0036] The return joint 4 includes a fixing portion 44 fixedly connected to the benchmark 1, and also includes a mounting portion 45 detachably connected to the fixing portion 44. The end surface of the fixing portion 44 is provided with an annular groove 441, and the annular groove 441 is sleeved on the outside of the return groove 41. An end surface of the mounting portion 45 close to the fixing portion 44 is fixedly connected with a mounting ring 451, and the mounting ring 451 is inserted into the annular groove 441 and is threadedly connected to the annular groove 441. An end surface of the mounting ring 451 away from the fixing portion 44 is fixedly connected with two auxiliary rods 46, and each locking groove 42 penetrates an end surface of the fixing portion 44 close to the mounting portion 45. The return groove 41 is opened from the end surface of the mounting portion 45 away from the fixing portion 44 and extends to the fixing portion 44.

[0037] A preset groove 31 is provided on a surface of the movable rod joint 3 close to the benchmark 1, and a preset block 8 is connected to the preset groove 31 through a thread. The connection block 5 is fixedly connected to the preset block 8, and two auxiliary grooves 81 are provided on the preset block 8. When the return joint 4 and the connection block 5 are fixed, each auxiliary rod 46 is plugged into the corresponding auxiliary groove 81. The movable rod joint 3 is connected to an adjustment component 9 that locks the preset block 8 and the movable rod joint 3.

[0038] During the process of threading the preset block 8 with the preset groove 31, the preset block 8 rotates clockwise relative to the movable rod joint 3. During the process of threading the mounting ring 451 with the annular groove 441, the mounting ring 451 rotates counterclockwise relative to the fixing portion 44.

[0039] When the preset block 8 is threadedly connected to the preset groove 31 and the preset block 8 is pressed against the bottom wall of the preset groove 31, the preset block 8 and the movable rod joint 3 are locked by the adjustment component 9. When the bar 1 in the protective tube 2 needs to be removed, the bar 1 is rotated counterclockwise, and the adjustment component 9 limits the rotation of the preset block 8, while the insertion of the auxiliary rod 46 and the auxiliary groove 81 limits the rotation of the mounting portion 45. In this way, the bar 1 rotates counterclockwise and gradually disengages the mounting ring 451 from the annular groove 441. When the mounting portion 45 is disengaged from the fixing portion 44, the bar 1 is pulled upward to complete the separation between the bar 1 and the protective tube 2.

[0040] The side wall of the preset groove 31 is provided with two slide grooves 82. The adjustment assembly 9 includes a locking rod 91 slidably connected to each slide groove 82. A spring 92 is installed between each locking rod 91 and the bottom wall of the corresponding slide groove 82. One end of the spring 92 is fixedly connected to the locking rod 91, and the other end is fixedly connected to the bottom wall of the slide groove 82. A plug-in groove 461 is provided on one side wall of each auxiliary rod 46. One end of the locking rod 91 is used to plug into the plug-in groove 461. A long hole 32 connected to the slide groove 82 is provided on one end surface of the movable rod joint 3. An adjustment block 93 is fixedly connected to one side wall of the locking rod 91. The adjustment block 93 is slidably plugged into the long hole 32.

[0041] When the preset block 8 is pre-installed on the movable rod joint 3, the adjusting block 93 is moved away from the preset groove 31, and the adjusting block 93 drives the locking rod 91 to be completely retracted into the slide groove 82. Then, the preset block 8 is screwed into the preset groove 31 until the side wall of the preset block 8 blocks the slide groove 82. The adjusting block 93 is released, and the locking rod 91 is pressed against the side wall of the preset block 8 by the force of the spring 92, and the spring 92 is also in a state of storing force.

[0042] After the standard rod 1 is lowered to complete the connection between the connecting block 5 and the return joint 4, the standard rod 1 is rotated clockwise, and the rotation of the standard rod 1 drives the preset block 8 to rotate clockwise through the auxiliary rod 46, and the preset block 8 rotates clockwise and gradually moves toward the bottom wall of the preset groove 31. When the preset block 8 contacts the bottom wall of the preset groove 31, the locking rod 91 just completely separates from the side wall of the preset block 8, and the locking rod 91 is inserted into the insertion groove 461 on the auxiliary rod 46 by the force of the spring 92, thereby completing the locking between the preset block 8, the mounting ring 451 and the movable rod joint 3.

[0043] The diameter of the insertion slot 461 is larger than the diameter of the locking rod 91 , so that the locking rod 91 can be inserted into the insertion slot 461 more smoothly.

[0044] The implementation principle of the ground settlement stratification mark that is easy to install in the embodiment of the present application is as follows: by installing a connection block 5 with a locking mechanism 6 on the movable rod joint 3, the connection process of the mark rod 1 and the movable rod joint 3 is greatly simplified. The traditional method requires precise alignment of the thread starting point, while the present solution can achieve quick connection without precise alignment through the cooperation of the locking claw 61 and the locking groove 42. This not only improves the installation efficiency, but also reduces the probability of connection failure caused by improper alignment, thereby improving the overall work efficiency and reliability.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ground settlement layer marker that is convenient for installation, comprising a marking rod (1) and a protection tube (2) for inserting the marking rod (1) inside. One end of the protection tube (2) is internally provided with a movable rod joint (3), and one end of the marking rod (1) is provided with a return joint (4), characterized in that: A connecting block (5) is mounted on the movable rod joint (3), and a locking mechanism (6) is mounted on the connecting block (5). A connecting groove (41) is formed on the end surface of the connecting joint (4), and at least two locking grooves (42) are formed on the side wall of the connecting groove (41). The locking mechanism (6) comprises at least two locking claws (61) hinged to the side wall of the connecting block (5) via a torsion spring. The connecting block (5) is plugged into the connecting groove (41), and each locking claw (61) is plugged into a corresponding locking groove (42). The locking claw (61) gradually tilts away from the bottom wall of the connecting groove (41) and away from the connecting block (5). When the locking claw (61) is rotated until the locking claw (61) contacts the connecting block (5), the two locking claws (61) and the connecting block (5) are smoothly inserted into the connecting groove (41). A positioning assembly (7) for positioning the plug-in of the benchmark rod (1) is mounted on the protective tube (2).

2. The ground settlement layer marker according to claim 1, which is easy to install, is characterized in that: The end surface of the return joint (4) having the return groove (41) is also provided with at least two reinforcement holes (43), each reinforcement hole (43) is communicated with a corresponding locking groove (42), a reinforcement rod (62) is interference-fitted in each reinforcement hole (43), and one end of each reinforcement rod (62) abuts against a side wall of the corresponding locking claw (61) away from the bottom wall of the return groove (41).

3. The ground settlement layered marker according to claim 2, wherein: The side wall of the connection block (5) is also fixedly connected with a limit block (51) having the same number as the locking claws (61), and each limit block (51) abuts against a side wall of the corresponding locking claw (61) facing away from the reinforcement rod (62).

4. A ground settlement layered mark that is easy to install according to claim 2, characterized in that: The return joint (4) comprises a fixing portion (44) fixedly connected to the benchmark (1), and also comprises a mounting portion (45) detachably connected to the fixing portion (44); an annular groove (441) is formed on an end surface of the fixing portion (44), and the annular groove (441) is sleeved on the outside of the return groove (41); an end surface of the mounting portion (45) close to the fixing portion (44) is fixedly connected to a mounting ring (451), and the mounting ring (451) is threadedly connected to the annular groove (441); each of the locking grooves (42) penetrates an end surface of the fixing portion (44) close to the mounting portion (45); an end surface of the mounting ring (451) facing away from the fixing portion (44) is fixedly connected to an auxiliary rod (46); an end surface of the movable rod joint (3) close to the mounting ring (451) begins to have an auxiliary groove (81), and the auxiliary rod (46) is plugged into the auxiliary groove (81).

5. The ground settlement layer marker that is easy to install according to claim 4, wherein: A surface of the movable rod joint (3) close to the marking rod (1) is provided with a preset groove (31), a preset block (8) is internally threadedly connected to the preset groove (31), the connecting block (5) is fixedly connected to the preset block (8), and the auxiliary groove (81) is provided on the preset block (8).

6. The ground settlement layer marker according to claim 5, which is characterized in that: A sliding groove (82) is formed in the side wall of the preset groove (31). A locking rod (91) is slidably connected in the sliding groove (82). A spring (92) is installed between the locking rod (91) and the bottom wall of the sliding groove (82). A plugging groove (461) is formed in one side wall of the auxiliary rod (46). One end of the locking rod (91) is plugged into the plugging groove (461), and the other end is plugged into the sliding groove (82).

7. A ground settlement layered mark that is easy to install according to claim 6, characterized in that: A long hole (32) communicating with the sliding groove (82) is formed in one end face of the movable rod joint (3). An adjusting block (93) is fixedly connected to one side wall of the locking rod (91). The adjusting block (93) is slidably plugged into the long hole (32).

8. A ground settlement layered marker that is easy to install according to claim 6, characterized in that: The diameter of the locking rod (91) is smaller than the diameter of the plugging groove (461).

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