An assembled inclinometer tube for deep foundation pit horizontal displacement monitoring

Abstract

The utility model discloses an assembly type inclinometer tube for deep foundation pit horizontal displacement monitoring relates to engineering surveying equipment field, technical scheme is, including a plurality of first and last joint pipe, one end of joint pipe is inserted and is equipped, and the other end is the cooperation department, and the cooperation department is adapted to constitute with inserted and equipped cooperation with inserted and equipped cooperation, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is inserted and equipped, and the cooperation department is installed in the sleeve of joint pipe end part, and the inner diameter of sleeve corresponds with the outer diameter of inserted pipe, and the pipe wall of sleeve is opened a plurality of clamping grooves in array, and the number of clamping groove corresponds with pin shaft, when inserted and equipped cooperation of inserted and equipped cooperation, pin shaft and clamping groove are clamped.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying equipment, and in particular to a prefabricated inclinometer tube for monitoring horizontal displacement in deep foundation pits. Background Technology

[0002] Inclinometer tubes are measuring tubes pre-buried underground for monitoring horizontal displacement inside the soil. In use, the inclinometer tubes are generally tied and fixed inside the reinforcing cage and placed into the foundation pit along with the reinforcing cage. Before tying and fixing, the inclinometer tubes need to be slid along the reinforcing cage to move to the designated position.

[0003] The existing inclinometer tube is composed of multiple tube sections connected end to end. The existing technology mainly uses "joint connection + auxiliary fastening" to connect the tube sections. Specifically, a special joint is used to fit the joint of the adjacent tube sections. When splicing, PVC glue is applied to the outer wall of the tube section to enhance the sealing. Then, the joint is fastened to the tube section with self-tapping screws or aluminum rivets. Finally, waterproof tape is wrapped around both ends of the joint to prevent cement slurry from seeping in.

[0004] The connection of the coupling section requires multiple steps, including "applying adhesive, fitting the coupling section, and tightening screws / rivets". Completing a single section splicing takes a long time and results in low construction efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an assembled inclinometer tube for monitoring horizontal displacement in deep foundation pits.

[0006] The technical solution includes multiple tube segments connected end to end, one end of each tube segment is an insertion part, and the other end is a mating part. The mating part is adapted to the insertion part to form an insertion fit with the insertion part. The insertion part includes an insertion tube corresponding to the outer diameter of the section tube, and a plurality of pins are symmetrically arranged on the outer wall of the insertion tube; The mating part is fixedly disposed on the sleeve at the end of the tube section. The inner diameter of the sleeve corresponds to the outer diameter of the insertion tube. Several slots are arrayed on the tube wall of the sleeve. The number of slots corresponds to the number of pins. When the insertion part and the mating part are inserted and mated, the pins are engaged with the slots.

[0007] Preferably, the slot is L-shaped, and the vertical portion of the slot extends to the outside of the sleeve.

[0008] Preferably, a limiting ring is fixedly provided on both the insertion tube and the sleeve, and the limiting ring is located at one end away from the opening of the insertion tube and the sleeve; A sealing and limiting sleeve is fitted on the outside of the insertion tube. The outer diameter of the sealing and limiting sleeve corresponds to the outer diameter of the limiting ring. One end of the sealing and limiting sleeve is fixedly connected to the limiting platform of the insertion tube, and the other end abuts against the limiting platform of the sleeve. The inner wall of the sealing and limiting sleeve is stepped, and the inner diameter of its small end corresponds to the outer diameter of the sleeve. A fixed end face ratchet is fixedly provided in the middle of the sealing and limiting sleeve. A limiting end face ratchet is slidably provided on the outside of the sleeve. The limiting end face ratchet meshes with the fixed end face ratchet. The outer diameter of the limiting end face ratchet corresponds to the inner diameter of the large end of the sealing limiting sleeve.

[0009] Preferably, a corrugated spring washer is provided between the ratchet gear on the fixed end face and the limiting platform.

[0010] Preferably, a plurality of guide platforms are fixedly provided on the inner wall of the ratchet at the limiting end face, and a plurality of guide grooves corresponding to the guide platforms are opened on the outer wall of the sleeve, and the ratchet at the limiting end face is slidably connected to the sleeve through the guide platforms and guide grooves.

[0011] The beneficial effects of the technical solution provided by this utility model embodiment are: by directly inserting and fitting the insert part and the mating part, combined with the rotational locking of the pin and the slot, the time spent on single-section splicing is shortened, and the pipe section connection can be completed quickly, effectively solving the problem of low construction efficiency in the existing technology. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0013] Figure 2 for Figure 1 A sectional view.

[0014] Figure 3 This is a schematic diagram of the tube segment of an embodiment of the present utility model. Figure 1 .

[0015] Figure 4 This is a schematic diagram of the tube segment of an embodiment of the present utility model. Figure 2 .

[0016] The reference numerals in the attached drawings are as follows: 1. Joint tube; 2. Insertion part; 3. Mating part; 4. Insertion tube; 5. Pin; 6. Sleeve; 7. Slot; 8. Limiting ring; 9. Sealing limiting sleeve; 10. Fixed end face ratchet; 11. Limiting end face ratchet; 12. Spring washer; 13. Guide table; 14. Wire groove. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0018] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 See Figures 1 to 4 This utility model provides an assembled inclinometer tube for monitoring horizontal displacement in deep foundation pits, including multiple tube sections 1 connected end to end. One end of each tube section 1 is an insertion part 2, and the other end is a mating part 3. The mating part 3 is adapted to the insertion part 2 to form an insertion mating with the insertion part 2. The insertion part 2 includes an insertion tube 4 corresponding to the outer diameter of the section tube 1, and a number of pins 5 are symmetrically arranged on the outer wall of the insertion tube 4; The fitting part 3 is fixedly installed on the sleeve 6 at the end of the tube 1. The inner diameter of the sleeve 6 corresponds to the outer diameter of the insertion tube 4. Several slots 7 are arrayed on the tube wall of the sleeve 6. The number of slots 7 corresponds to the number of pins 5. When the insertion part 2 and the fitting part 3 are inserted and fitted, the pins 5 are engaged with the slots 7.

[0022] The first step is to determine the number of pipe sections 1 required based on the design depth of the continuous wall. For example, if 4m or 2m pipe sections 1 are selected, when splicing, take one pipe section 1 and align the end with the insertion part 2 with the end with the mating part 3 of another pipe section 1 to complete the insertion, so that the pin 5 is engaged with the slot 7, and the splicing of the two pipe sections 1 is completed. During the process of extending the inclinometer tube section by section, it is continuously inserted into the pre-made steel cage. After all sections of tube 1 are connected and the inclinometer tube is in place, the inner groove of the inclinometer tube must be checked to ensure that the inner groove is perpendicular to the surface of the steel cage. At the same time, it must be confirmed that there is no twisting at the upper and lower groove openings of the inclinometer tube. Only when the position of the inner groove meets the requirements can the lower opening of the inclinometer tube be sealed. The inclinometer tube is tied to the reinforcing cage. Because the mud has buoyancy during the pouring process, tying it in place ensures that the inclinometer tube will not float or move laterally during the pouring of concrete. Finally, steel pipes or rigid PVC pipes are respectively installed on the upper and lower ends of the inclinometer tube. The length of the outer casing 6 must be sufficient to allow the inclinometer tube to still be inserted 50cm into the concrete after the laitance concrete is removed, thus completing the installation of the entire inclinometer tube.

[0023] The slot 7 is L-shaped, and the vertical part of the slot 7 extends to the outside of the sleeve 6.

[0024] In the installation of inclinometer tubes, the insertion part 2 of one tube segment 1 is aligned with the mating part 3 of another tube segment 1, so that the insertion tube 4 is inserted into the sleeve 6. After the insertion part 2 and the insertion mating part 3 are fully fitted, the tube segment 1 at the insertion end is rotated at a certain angle so that the pin 5 slides from the vertical part of the slot 7 into the horizontal part of the slot 7. At this time, the pin 5 is limited by the horizontal part of the slot wall, thus completing the locking connection of the two tube segments 1.

[0025] After the pin 5 is inserted into the horizontal part of the slot 7, the groove wall of the horizontal part will form a lateral limit on the pin 5, preventing the section tube 1 from detaching along the axial direction; it can effectively resist the buoyancy and lateral impact of the mud when pouring concrete in the deep foundation pit, avoid the section tube 1 from loosening during construction or use, and ensure the overall structural stability of the inclinometer tube.

[0026] Limiting rings 8 are fixedly provided on both the insertion tube 4 and the sleeve 6. The limiting rings 8 are located at the ends away from the openings of the insertion tube 4 and the sleeve 6. A sealing and limiting sleeve 9 is fitted on the outside of the insertion tube 4. The outer diameter of the sealing and limiting sleeve 9 corresponds to the outer diameter of the limiting ring 8. One end of the sealing and limiting sleeve 9 is fixedly connected to the limiting platform of the insertion tube 4, and the other end abuts against the limiting platform of the sleeve 6. The sealing limit sleeve 9 can provide a double seal at the joint of the insertion pipe 4 and the sleeve 6, effectively preventing cement slurry and groundwater from seeping in from the radial gap of the joint, avoiding blockage of the inclinometer tube groove or affecting the sliding of the inclinometer probe, and ensuring monitoring accuracy. The inner wall of the sealing and limiting sleeve 9 is stepped, and the inner diameter of its small end corresponds to the outer diameter of the sleeve 6. A fixed end face ratchet 10 is fixedly installed in the middle of the sealing and limiting sleeve 9. A limiting end face ratchet 11 is slidably provided on the outside of the sleeve 6. The limiting end face ratchet 11 meshes with the fixed end face ratchet 10. The outer diameter of the limiting end face ratchet 11 corresponds to the inner diameter of the large end of the sealing limiting sleeve 9.

[0027] A corrugated spring washer 12 is provided between the ratchet 10 on the fixed end face and the limiting platform.

[0028] The continuous preload of the spring washer 12 ensures that the fixed end face ratchet 10 and the limiting end face ratchet 11 on the outside of the sleeve 6 are always tightly engaged. When rotating and locking, the one-way tooth profile of the ratchet directly restricts the reverse rotation of the fixed end face ratchet 10, i.e., the insertion tube 4, to avoid the failure of anti-reverse rotation caused by misalignment of component movement. Rotate the insertion end section 1 in the preset direction. Because the sealing limit sleeve 9 is fixedly connected to the limiting platform of the insertion tube 4, the insertion tube 4 will rotate synchronously with the sealing limit sleeve 9 and the fixed end face ratchet 10 in the middle of the sealing limit sleeve 9. As the rotation progresses, the pin 5 on the insertion tube 4 slides smoothly from the vertical part of the L-shaped slot 7 and finally locks into the horizontal part. The pin 5 is axially limited by the groove wall of the horizontal part. At the same time, the meshing state of the fixed end face ratchet 10 and the limiting end face ratchet 11 is completely locked, which completely prevents the insertion tube 4 from reversing and completes the double fixation of the joint tube 1.

[0029] Even when subjected to mud impact and vibration during deep foundation pit pouring, or disturbed by external forces during long-term use, the ratchet engagement will not loosen. Compared with the simple slot 7 limit, the anti-reverse torque bearing capacity is significantly improved, ensuring the long-term stability of the joint pipe 1 connection.

[0030] A number of guide platforms 13 are fixedly installed on the inner wall of the ratchet 11 at the limiting end face, and a number of guide grooves 14 corresponding to the guide platforms 13 are opened on the outer wall of the sleeve 6. The ratchet 11 at the limiting end face is slidably connected to the sleeve 6 through the guide platforms 13 and the guide grooves 14.

[0031] By matching the guide table 13 with the guide groove 14, the circumferential rotation of the limiting end face ratchet 11 is directly restricted, so that it can only slide along the axial direction of the sleeve 6. When the rotation is locked, the fixed end face ratchet 10 rotates with the insertion pipe 4, while the limiting end face ratchet 11 remains stationary due to the guide structure. The two are always in a meshing state, completely eliminating the risk of failure of the reverse function.

[0032] When using this utility model, the first step is to determine the required number of pipe sections 1 according to the design depth of the continuous wall. For example, if 4m or 2m pipe sections 1 are selected, when splicing, take one pipe section 1, align the end with the insertion part 2 with the end with the mating part 3 of another pipe section 1, complete the insertion, and make the pin 5 engage with the slot 7 to complete the splicing of the two pipe sections 1. During the process of extending the inclinometer tube section by section, it is continuously inserted into the pre-made steel cage. After all sections of tube 1 are connected and the inclinometer tube is in place, the inner groove of the inclinometer tube must be checked to ensure that the inner groove is perpendicular to the surface of the steel cage. At the same time, it must be confirmed that there is no twisting at the upper and lower groove openings of the inclinometer tube. Only when the position of the inner groove meets the requirements can the lower opening of the inclinometer tube be sealed. The inclinometer tube is tied to the reinforcing cage. Because the mud has buoyancy during the pouring process, tying it in place ensures that the inclinometer tube will not float or move laterally during the pouring of concrete. Finally, steel pipes or rigid PVC pipes are respectively installed on the upper and lower ends of the inclinometer tube. The length of the outer casing 6 must be sufficient to allow the inclinometer tube to still be inserted 50cm into the concrete after the laitance concrete is removed, thus completing the installation of the entire inclinometer tube.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A prefabricated inclinometer tube for monitoring horizontal displacement in deep foundation pits, characterized in that, It includes multiple tube segments (1) connected end to end, one end of each tube segment (1) is an insertion part (2), and the other end is a mating part (3). The mating part (3) is adapted to the insertion part (2) to form an insertion fit with the insertion part (2). The insertion part (2) includes an insertion tube (4) corresponding to the outer diameter of the section tube (1), and a plurality of pins (5) are symmetrically arranged on the outer wall of the insertion tube (4). The mating part (3) is fixedly installed on the sleeve (6) at the end of the tube (1). The inner diameter of the sleeve (6) corresponds to the outer diameter of the insertion tube (4). Several slots (7) are arrayed on the tube wall of the sleeve (6). The number of slots (7) corresponds to the number of pins (5). When the insertion part (2) and the mating part (3) are inserted and mated, the pins (5) are engaged with the slots (7).

2. The prefabricated inclinometer tube for monitoring horizontal displacement of deep foundation pits according to claim 1, characterized in that, The slot (7) is L-shaped, and the vertical part of the slot (7) extends to the outside of the sleeve (6).

3. The prefabricated inclinometer tube for monitoring horizontal displacement in deep foundation pits according to claim 2, characterized in that, Limiting rings (8) are fixedly provided on both the insertion tube (4) and the sleeve (6), and the limiting rings (8) are located at one end away from the opening of the insertion tube (4) and the sleeve (6); A sealing limiting sleeve (9) is fitted on the outside of the insertion tube (4). The outer diameter of the sealing limiting sleeve (9) corresponds to the outer diameter of the limiting ring (8). One end of the sealing limiting sleeve (9) is fixedly connected to the limiting platform of the insertion tube (4), and the other end abuts against the limiting platform of the sleeve (6). The inner wall of the sealing and limiting sleeve (9) is stepped, and the inner diameter of its small end corresponds to the outer diameter of the sleeve (6). A fixed end face ratchet (10) is fixedly provided in the middle of the sealing and limiting sleeve (9). A limiting end face ratchet (11) is slidably provided on the outside of the sleeve (6). The limiting end face ratchet (11) meshes with the fixed end face ratchet (10). The outer diameter of the limiting end face ratchet (11) corresponds to the inner diameter of the large end of the sealing limiting sleeve (9).

4. The prefabricated inclinometer tube for monitoring horizontal displacement of deep foundation pits according to claim 3, characterized in that, A corrugated spring washer (12) is provided between the ratchet (10) on the fixed end face and the limiting platform.

5. The prefabricated inclinometer tube for monitoring horizontal displacement of deep foundation pits according to claim 3, characterized in that, A number of guide platforms (13) are fixedly arranged on the inner wall of the ratchet (11) at the limiting end face, and a number of guide grooves (14) corresponding to the guide platforms (13) are opened on the outer wall of the sleeve (6). The ratchet (11) at the limiting end face is slidably connected to the sleeve (6) through the guide platforms (13) and the guide grooves (14).

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