Device for removing road settlement monitoring points
Through the combined structure of the puller, lock plate and holding rod, the problem of complex structure and inconvenient operation of the pulling device in the prior art is solved, and the road settlement monitoring points are easily and efficiently removed, adapted to rebar of various diameters, and improved the removal efficiency.
Patent Information
- Application Number
- CN202422012535.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The removal device in the prior art has a complex structure and is not easy to operate, making it difficult to efficiently remove road settlement monitoring points.
The combined structure of the puller, lock plate and holding rod is adopted to clamp the rebar exposed on the ground, and the wedge structure of the lock plate and the internal thread design are used to achieve firm fixation and removal of the rebar.
It realizes the simple and efficient removal of road settlement monitoring points of multiple diameters, which are simple to operate, firmly connected, strong adaptability, saves manpower, and improves the removal efficiency.
Smart Images
Figure CN223292264U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of road subsidence monitoring auxiliary equipment, and in particular to a device for removing road subsidence monitoring points. Background Art
[0002] With the rapid development of my country's cities and the increasing number of urban construction projects, monitoring ground subsidence and deformation is an essential task. When monitoring road subsidence, a long section of rebar is typically inserted into the road as a monitoring point, with a shorter section exposed above the ground. The rebar's settlement is then monitored to indicate the road's subsidence. However, removing the securely fixed monitoring point after monitoring is difficult. The removal devices used in related technologies are complex in structure and difficult to operate. Utility Model Content
[0003] In view of the fact that the removal device in the related art has a complex structure and is not easy to operate, the present application proposes a device for removing road settlement monitoring points to improve the situation. To this end, the present application adopts the following technical solution.
[0004] A device for removing road settlement monitoring points comprises a puller, two locking plates, and a holding rod. The puller has a pulling hole. The pulling hole is cylindrical. The pulling hole is configured to allow the monitoring point to pass through. The two ends of the holding rod are fixed on either side of the puller. The two locking plates are both semi-conical plates and can be spliced together to form a hollow frustum. The two locking plates are fitted in the pulling hole, and the outer diameter of the larger end of the frustum is larger than the diameter of the pulling hole, while the outer diameter of the smaller end of the frustum is smaller than the diameter of the pulling hole.
[0005] It should be noted that the monitoring point is a straight rebar, which can be 1 meter long and inserted vertically into the ground, with a small section exposed above the ground. This device clamps the exposed rebar and pulls the entire rebar out of the ground. By adopting the above-mentioned technical solution, the puller is first placed on the threaded rod, and the upper end of the rebar is passed through the extraction hole. Two locking plates are wrapped around the two sides of the rebar, with the small ends of the two locking plates facing downward. The two locking plates are hammered into the extraction hole to clamp the upper end of the rebar. The holding rod is then lifted to completely pull out the monitoring point. Lifting the holding rod can be achieved by using a jack or other drive.
[0006] A preferred structure of the device for removing road settlement monitoring points is that the extractor has two extraction holes of different diameters and two sets of locking plates of different sizes. Each set of locking plates includes two locking plates with symmetrical shapes and inner cavities. Each set of locking plates is fitted into one extraction hole.
[0007] By adopting the above technical solution, the device can be adapted to remove monitoring points of various different diameters.
[0008] A preferred structure of the device for removing road settlement monitoring points is that the line connecting the centers of the two extraction holes is perpendicular to the line connecting the two ends of the holding rod.
[0009] By adopting the above technical solution, when fixing the monitoring point, the two locking pieces can be conveniently knocked, so that the locking pieces, the extractor and the monitoring point form a fixed connection.
[0010] A preferred structure of the device for removing road settlement monitoring points is that the inner side surface of each locking piece is a concave semi-cylindrical surface, so that the inner cavity of the frustum formed by splicing two locking pieces is cylindrical.
[0011] By adopting the above technical solution, the two locking pieces can be more adaptably fitted on the threaded steel monitoring points.
[0012] A preferred structure of the device for removing road settlement monitoring points is that the inner cavity wall of the frustum is fully engraved with internal threads from one end to the other.
[0013] By adopting the above technical solution, the connection between the two locking pieces and the threaded steel bars is more secure.
[0014] A preferred structure of the device for removing road settlement monitoring points is that the inner diameter of the inner cavity of the spliced frustum is smaller than or equal to the outer diameter of the monitoring point.
[0015] By adopting the above technical solution, the two locking pieces can effectively lock the threaded steel bar.
[0016] A preferred structure of the device for removing road settlement monitoring points is that the holding rod is in an inverted U shape.
[0017] By adopting the above technical solution, it is convenient to apply force to the holding rod to pull up the holding rod, thereby driving the puller and the threaded steel bar to move upward.
[0018] A preferred structure of the device for removing road settlement monitoring points is that the device further comprises a crossbar, which is used to be mounted on the inner top surface of the holding rod.
[0019] By adopting the above technical solution, the device can be lifted by applying force to both ends of the crossbar.
[0020] A preferred structure of the device for removing a road settlement monitoring point is that the device further comprises a jack, which is used to support the lower side of one end of the crossbar.
[0021] By adopting the above technical solution and using a jack as a force applicator, the other end of the crossbar can be placed on a support, and the device can be effectively lifted.
[0022] To sum up, the device for removing road settlement monitoring points of the present application has the following beneficial effects: first, put the puller on the threaded rod, pass the upper end of the threaded steel through the pulling hole, wrap the two locking plates on both sides of the threaded steel, with the small ends of the two locking plates facing down, knock the two locking plates into the pulling holes, thereby clamping the upper end of the threaded steel, and then lift the holding rod to pull out all the monitoring points. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a decentralized structural diagram of the first device for removing road settlement monitoring points.
[0024] Figure 2 Schematic diagram of the monitoring point structure.
[0025] Figure 3 for Figure 1 The structural diagram of the two locking pieces after docking.
[0026] Figure 4 for Figure 1 Another state diagram, specifically a combined diagram of the two locking plates being installed in the pulling holes of the puller.
[0027] Figure 5 This is the structural diagram of the second type of road settlement monitoring point device after removing the fixed monitoring points.
[0028] Figure numerals: 1. puller; 2. locking plate; 3. holding rod; 4. threaded steel bar; 11. pulling hole; 5. cross bar; 6. jack. DETAILED DESCRIPTION
[0029] The present application is further described below with reference to the accompanying drawings.
[0030] See also Figure 1 A device for removing road settlement monitoring points includes a puller 1, two locking pieces 2 and a holding rod 3.
[0031] See also Figure 2 It should be noted that the monitoring point is a straight threaded steel bar 4, the length of which can be 1 meter. It is vertically inserted into the ground, with a small section exposed on the ground. This device pulls the entire threaded steel bar 4 out of the ground by clamping the threaded steel bar 4 exposed on the ground.
[0032] See also Figure 1 In this device, the puller 1 can be a cylinder having a puller hole 11. The puller hole 11 is a cylindrical hole parallel to the axial direction of the puller 1. The puller hole 11 is configured to allow the monitoring point to pass through. The inner wall surface of the puller hole 11 can be smooth.
[0033] See also Figure 1The two ends of the holding rod 3 are fixed on both sides of the puller 1. Specifically, the holding rod 3 includes two parallel inverted U-shaped rods, and the two ends of the inverted U-shaped rods are welded to both sides of the puller 1, so that force is applied to the holding rod 3 to pull up the holding rod 3 and drive the puller 1 to move upward.
[0034] See also Figure 3 The two locking pieces 2 are both semi-conical pieces, and the two locking pieces 2 can be spliced into a hollow frustum.
[0035] like Figure 4 The two locking pieces 2 are cooperatively installed in the pulling hole 11, and the outer diameter of the larger end of the frustum is larger than the diameter of the pulling hole 11, and the outer diameter of the smaller end of the frustum is smaller than the diameter of the pulling hole 11.
[0036] The specific method of using this device is to first put the puller 1 on the threaded rod, pass the upper end of the rebar 4 through the extraction hole 11, wrap the two locking plates 2 on both sides of the rebar 4, with the smaller ends of the two locking plates 2 facing downward, and drive the two locking plates 2 into the extraction hole 11 to clamp the upper end of the rebar 4. Then, lift the holding rod 3 to completely remove the monitoring points. Lifting the holding rod 3 can be achieved by using a jack 6 or other device. After extraction, to disengage the locking plates 2 from the puller 1, tap the bottom of the rebar 4 to move it accordingly, allowing the locking plates 2 to disengage.
[0037] To accommodate monitoring points of threaded steel bars (4) with various diameters, the puller (1) can have two pulling holes (11) with different diameters and two sets of two locking plates (2) of different sizes. Each set of locking plates (2) includes two locking plates (2) with symmetrical shapes and internal cavities. This symmetry also includes the symmetry of the threads that may be provided on the inner walls of the locking plates (2). Each set of locking plates (2) is mounted in a pulling hole (11). When removing a monitoring point, one pulling hole (11) is in operation, while the other serves as a backup hole. This allows the device to be adapted for removing monitoring points of various diameters. The diameter of the pulling hole (11) can be 12 mm, 8 mm, etc.
[0038] The two locking plates 2 can be easily struck to securely connect the locking plates 2, the extractor 1, and the monitoring point. The center line of the two extraction holes 11 is set perpendicular to the line connecting the two ends of the holding rod 3. When the device is used to secure the monitoring point, the holding rod 3 has less interference with the locking plates 2, which facilitates the installation of the locking plates 2.
[0039] You can choose, for example Figure 1 The inner side surface of each locking piece 2 is a concave semi-cylindrical surface, such as Figure 3, so that the inner cavity of the cone formed by the two locking pieces 2 is cylindrical, so that the two locking pieces 2 can be more adaptably sleeved on the monitoring point of the threaded steel bar 4. Since the two locking pieces 2 are both semi-conical pieces and can be spliced into a hollow cone, that is, the outer shape of the locking piece 2 is semi-conical, the butting side surface of each locking piece 2 is wedge-shaped. When the small end is inserted into the threaded steel bar 4 and the extraction hole 11, it gradually presses against the threaded steel bar 4 and tightens the threaded steel bar 4, making it easier to pull out the threaded steel bar 4.
[0040] In order to strengthen the clamping strength of the locking piece 2 on the threaded steel bar 4, the inner cavity wall of the cone formed by splicing two locking pieces 2 is engraved with internal threads from one end to the other, so that the connection between the two locking pieces 2 and the threaded steel bar 4 can be more firmly established.
[0041] In order to enable the two locking pieces 2 to effectively clamp the threaded steel bar 4, the inner diameter of the inner cavity of the spliced cone is set to be less than or equal to the outer diameter of the monitoring point. The two locking pieces 2 can effectively press against the threaded steel bar 4. By knocking and inserting the locking pieces 2, under the limit of the extraction hole 11, the locking pieces 2 gradually clamp the threaded steel bar 4.
[0042] like Figure 5 In order to facilitate lifting the holding rod 3, the device for removing the road settlement monitoring point further includes a crossbar 5. The crossbar 5 is used to be mounted on the inner top surface of the holding rod 3, and the device can be lifted by applying an upward force to both ends of the crossbar 5.
[0043] like Figure 5 To save manpower and improve the efficiency of pulling out the rebar 4, the device for removing the road settlement monitoring point also includes a jack 6. The jack 6 is used to press against one end of the crossbar 5. The jack 6 acts as a force applicator against one end of the crossbar 5, while the other end of the crossbar 5 rests on a support. As the jack 6 raises the crossbar 5, the height of the support and the jack 6 are constantly adjusted to effectively lift the rebar 4.
[0044] When using this device, insert the top of the monitoring point into one of the extraction holes 11 of the puller 1, and then insert two locking plates 2 into the gap between the hole and the top of the monitoring point. Since the side of the locking plates 2 is wedge-shaped, it is possible to tighten the space between the extraction hole 11 and the monitoring point, thereby locking the two together. When external force is applied to the holding rod 3, the holding rod 3 drives the puller 1 to move upward. Since the locking plates 2 are wedge-shaped, and the diameter of the large end of the wedge is larger than the diameter of the extraction hole 11, the puller 1 can drive the locking plates 2 upward during the upward movement. The upward movement of the locking plates 2 then pulls the top of the monitoring point upward. After the monitoring point is pulled out, knock on the lower end of the monitoring point to make the locking plates 2 withdraw from the space between the two to achieve unlocking.
[0045] The device has a simple connection method and can realize quick plugging of the threaded steel bar 4 and the locking piece 2, and quick removal of the threaded steel bar 4.
[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various equivalent replacements and modifications can be made according to the above description, and these replacements and modifications should be included in the scope of protection of the present application.
Claims
1. A device for removing road settlement monitoring points, characterized in that: It comprises an extractor (1), two locking pieces (2) and a holding rod (3); The puller (1) has a pulling hole (11); the pulling hole (11) is cylindrical; the pulling hole (11) is arranged so that the monitoring point can pass through it; the two ends of the holding rod (3) are fixed on both sides of the puller (1); the two locking pieces (2) are both semi-conical pieces, and the two locking pieces (2) can be spliced into a hollow frustum; the two locking pieces (2) are fitted in the pulling hole (11), and the outer diameter of the larger end of the frustum is larger than the diameter of the pulling hole (11), and the outer diameter of the smaller end of the frustum is smaller than the diameter of the pulling hole (11).
2. The device for removing road subsidence monitoring points according to claim 1, characterized in that: The puller (1) has two pulling holes (11) of different diameters and two groups of locking pieces (2) of different sizes; each group of locking pieces (2) includes two locking pieces (2) with symmetrical shapes and inner cavities; each group of locking pieces (2) is cooperatively installed in one pulling hole (11).
3. The device for removing road subsidence monitoring points according to claim 2, characterized in that: The line connecting the centers of the two pulling holes (11) is perpendicular to the line connecting the two ends of the holding rod (3).
4. The device for removing road subsidence monitoring points according to claim 1, characterized in that: The inner side surface of each locking piece (2) is a concave semi-cylindrical surface, so that the inner cavity of the cone formed by splicing two locking pieces (2) is cylindrical.
5. The device for removing road subsidence monitoring points according to claim 4, characterized in that: The inner cavity wall of the frustum is fully engraved with internal threads from one end to the other end.
6. The device for removing road subsidence monitoring points according to claim 4, characterized in that: The inner diameter of the inner cavity of the spliced frustum is smaller than or equal to the outer diameter of the monitoring point.
7. The device for removing road subsidence monitoring points according to claim 1, characterized in that: The holding rod (3) is in an inverted U shape.
8. The device for removing road subsidence monitoring points according to claim 7, characterized in that: The device for removing road settlement monitoring points also includes a crossbar (5); the crossbar (5) is used to be mounted on the inner top surface of the holding rod (3).
9. The device for removing road subsidence monitoring points according to claim 8, characterized in that: The device for removing a road settlement monitoring point further comprises a jack (6); the jack (6) is used to press below one end of the crossbar (5).