Layered label bottom assembly with telescopic protection tube

Abstract

The utility model relates to the technical field of layered mark bottom assemblies, in particular to a layered mark bottom assembly with a telescopic protection tube, which prolongs the service life of the layered mark bottom assembly, protects a calibration rod from being interfered by strata, effectively improves the monitoring precision and prolongs the service life. Comprising a calibration rod and a mark bottom insertion drill which is fixed to the bottom end of the calibration rod in a screwed mode. The piston ring is installed on the upper portion of the outer side wall of the calibration rod, the outer side wall of the calibration rod is sleeved with the upper protection storage, the outer side wall of the piston ring is tightly attached to the inner side wall of the upper protection storage, the outer side wall of the calibration rod is sleeved with the middle sealing sleeve, and the bottom end of the upper protection storage is tightly attached to the top end of the middle sealing sleeve; the outer side wall of the upper protective sleeve is sleeved with the lower protective sleeve, the outer side wall of the calibration rod is sleeved with the lower sealing sleeve, and the bottom end of the lower protective sleeve is tightly attached to the top end of the lower sealing sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of layered label bottom assemblies, in particular to a layered label bottom assembly with a telescopic protection tube. Background Art

[0002] The stratified marker is a monitoring mark buried near the interface of loose soil layers at different depths for measuring relative displacement. It is an important facility for monitoring ground subsidence. It can systematically grasp the compression and deformation of the strata, analyze the layers and causes of ground subsidence, and provide a scientific basis for formulating scientific and reasonable measures to control ground subsidence. The stratified marker is mainly composed of the base assembly, protection pipe, marker pole and marker head, and the base assembly of the stratified marker is a rigid combination device that tightly fixes the stratified marker and the monitored soil layer into one. It is the most important component at the bottom of the stratified marker to transmit the stratum subsidence information upward without loss.

[0003] Patent No. CN200820127101.5 discloses a layered marker base, which consists of a marker sleeve and a marker rod coaxially movably arranged in the marker sleeve. The marker rod passes through the marker sleeve downward and is provided with a marker head for being inserted into the top plate layer. An oil seal ring is provided at the bottom of the marker sleeve relative to the marker rod. However, after the layered marker base of the patent is inserted into the monitoring target layer, in order to effectively monitor the compression or rebound deformation of the formation, the main marker needs to be lifted up a certain distance to reserve expansion space for the marker rod, which causes a part of the marker rod to be exposed outside the marker base. The marker rod exposed outside the marker base will contact the formation over time. When monitoring the deformation of the formation, the formation around the exposed marker rod will generate resistance to hinder the free vertical movement of the marker rod, thereby affecting the sensitivity of the layered marker, reducing the monitoring accuracy, and even reducing the service life of the layered marker.

[0004] The layered marker is installed vertically on the ground. It is made of heavy material and has a slender shape. The upper and lower protective tubes will inevitably tilt or rotate relative to each other during the extension and retraction process, which brings uncertainty to the installation and affects the service life of the layered marker.

[0005] During the transportation or storage of layered markers, if the fixing part of the marker rod is firm, it may easily slip out and cause damage to the marker rod. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a layered marker bottom assembly with a retractable protective tube, which prolongs the service life of the layered marker bottom assembly, protects the calibration rod from stratum interference, and effectively improves the monitoring accuracy and service life.

[0007] The utility model discloses a protective tube with a telescopic layered marking bottom assembly, comprising a marking rod and a marking bottom inserting drill, wherein the marking bottom inserting drill is screwed and fixed at the bottom end of the marking rod; further comprising a fixing device, a piston ring, an upper protective storage tube and a lower protective sleeve tube, wherein the piston ring is mounted on the upper part of the outer wall of the marking rod, the upper protective storage tube is sleeved on the outer wall of the marking rod, the outer wall of the piston ring is tightly attached to the inner wall of the upper protective storage tube, the middle sealing sleeve is sleeved on the outer wall of the marking rod, the bottom end of the upper protective storage tube is tightly attached to the top end of the middle sealing sleeve, the lower protective sleeve tube is sleeved on the outer wall of the upper protective storage tube, the lower sealing sleeve tube is sleeved on the outer wall of the marking rod, the bottom end of the lower protective sleeve tube is tightly attached to the top end of the lower sealing sleeve, and the top end of the lower protective sleeve tube is provided with a sealing sleeve which is attached to the upper protective sleeve tube An upper sealing sleeve is tightly attached to the storage surface, and a fixing device is arranged on the outer side wall of the upper protective storage, and the fixing device is used to fix the upper protective storage and the lower protective sleeve together; the upper protective storage and the lower protective sleeve are fixed by the fixing device, and the center lines of the calibration rod, the upper protective storage and the lower protective sleeve are located on the same straight line, and at the same time, the upper protective storage and the lower protective sleeve are prevented from relative rotation. The three are coaxially arranged to ensure that they can be effectively nested and slid, thereby extending the service life of the layered marking bottom assembly, and whether the calibration rod slides upward or downward, the upper protective storage and the lower protective sleeve will isolate the surrounding strata, protect the calibration rod from stratum interference, and effectively improve the monitoring accuracy and service life.

[0008] Preferably, the fixing device includes two groups of flanges and two groups of connecting screws. Flanges are respectively provided at one-third and two-thirds of the total length of the outer wall of the upper protective storage tube. Two groups of through holes are provided on the two groups of flanges, and threaded holes are provided on the upper sealing sleeve. The upper and lower ends of the two groups of connecting screws are respectively provided with external threads. The two groups of connecting screws pass through the through holes of the two groups of flanges respectively. The bottom ends of the two groups of connecting screws are screwed on the threaded holes of the upper sealing sleeve through external threads, and the two groups of nuts are respectively screwed on the upper external threads of the two groups of connecting screws. When the upper protective storage tube and the lower protective sleeve are assembled, the two groups of connecting screws are installed to prevent the lower protective sleeve from continuing to fall, so that the upper protective storage tube and the lower protective sleeve can be extended and retracted to a certain extent, which is convenient for installation and operation.

[0009] Preferably, it also includes multiple groups of positioning plates, which are arranged in 2 layers, with 4 plates in each layer evenly arranged at equal angles on the outer side of the lower protective sleeve, and the positioning plates are a right-angled triangle structure; the positioning plates are used to ensure that the main mark is pressed into the target formation and is in place together with the layered mark bottom assembly, and when the main mark is lifted, the positioning plates and the surrounding formations form effective damping so that the lower protective sleeve will not move up with the main mark, and the bottom of the lower protective sleeve is still tightly attached to the mark bottom drill bit, thereby effectively avoiding the situation where the calibration rod is exposed and directly contacts the formation, effectively isolating the influence of the deformation of the surrounding formations on the calibration rod, ensuring the precision of precise measurement, and extending the service life.

[0010] Preferably, it also includes a benchmark adapter and a protective sleeve hoop. The benchmark adapter is screwed on the top of the calibration pole, and the protective sleeve hoop is installed on the top of the upper protective storage. By setting the benchmark adapter, the convenience of fixed connection between multiple groups of calibration poles is improved, and by setting the protective sleeve hoop, the protective effect of the benchmark adapter is improved.

[0011] Preferably, it also includes multiple groups of locking plates, which are arranged on the lower part of the outer side wall of the lower protective sleeve; during transportation and storage, the lower protective sleeve and the base insert are fixed together with bolts using the locking plates, which can effectively prevent the base insert from extending out and causing damage when not in operation.

[0012] Preferably, the lower part of the mark bottom inserted rod has a claw-shaped structure; when the layered mark is buried and installed, the mark bottom inserted rod is completely pressed into the monitoring target layer, which is conducive to being tightly connected with the monitored stratum as a whole, ensuring stable and reliable monitoring of the layered mark.

[0013] Preferably, the piston ring, upper sealing sleeve, lower sealing sleeve and middle sealing sleeve all include a rigid sealing device body and a plurality of O-rings, which ensure that the piston ring will not fall off during movement and that leakage will not occur during movement. Multi-stage sealing can effectively ensure that the seal does not leak oil during sliding, thereby effectively preventing formation clay from entering the bottom of the mark.

[0014] Preferably, the cavity surrounded by the upper protective keeper, the lower protective sleeve, the upper sealing sleeve, the lower sealing sleeve, the middle sealing sleeve, the calibration rod and the piston ring is filled with lubricating oil; by filling the lubricating oil, the resistance effect of the calibration rod, the upper protective keeper and the lower protective sleeve when sliding against each other is effectively reduced, ensuring that the three can slide freely.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the upper protective keeper and the lower protective sleeve are fixed by a fixing device, and the center lines of the calibration rod, the upper protective keeper and the lower protective sleeve are located on the same straight line, while preventing the upper protective keeper and the lower protective sleeve from relative rotation. The three are coaxially arranged to ensure that they can be effectively nested and slid, thereby extending the service life of the layered marking bottom assembly; whether the calibration rod slides upward or downward, the upper protective keeper and the lower protective sleeve will isolate the surrounding strata, protecting the calibration rod from stratum interference, thereby effectively improving the monitoring accuracy and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the axonometric structure of the connection between the calibration rod and the piston ring, etc.;

[0018] Figure 3It is a schematic diagram of the axonometric local structure of the connection between the calibration rod and the calibration bottom inserting dowel;

[0019] Figure 4 It is a schematic diagram of the axonometric local structure of the connection between the flange and the connecting screw;

[0020] Figure 5 It is a schematic diagram of the axonometric local structure of the connection between the lower protective sleeve and the positioning piece.

[0021] Markings in the attached figure: 1. Calibration rod; 2. Piston ring; 3. Marking bottom insert; 4. Calibration rod adapter; 5. Upper protective sleeve; 6. Flange; 7. Connecting screw; 8. Protective sleeve clamp; 9. Lower protective sleeve; 10. Positioning piece; 11. Upper sealing sleeve; 12. Lower sealing sleeve; 13. Middle sealing sleeve; 14. Locking piece. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0023] Example 1

[0024] like Figures 1 to 5 As shown, the utility model is a layered marking bottom assembly with a retractable protective tube, including a marking rod 1 and a marking bottom inserting drill 3, the marking bottom inserting drill 3 is screwed and fixed to the bottom end of the marking rod 1; it also includes a fixing device, a piston ring 2, an upper protective storage tube 5 and a lower protective sleeve 9, the piston ring 2 is installed on the upper part of the outer wall of the marking rod 1, the upper protective storage tube 5 is sleeved on the outer wall of the marking rod 1, the outer wall of the piston ring 2 is tightly attached to the inner wall of the upper protective storage tube 5, and the middle sealing sleeve 13 is sleeved on the outer wall of the marking rod 1 , the bottom end of the upper protective storage tube 5 is tightly attached to the top end of the middle sealing sleeve 13, the lower protective sleeve 9 is sleeved on the outer wall of the upper protective storage tube 5, the lower sealing sleeve 12 is sleeved on the outer wall of the calibration rod 1, the bottom end of the lower protective sleeve 9 is tightly attached to the top end of the lower sealing sleeve 12, and the top end of the lower protective sleeve 9 is provided with an upper sealing sleeve 11 tightly attached to the surface of the upper protective storage tube 5, and a fixing device is provided on the outer wall of the upper protective storage tube 5, and the fixing device is used to fix the upper protective storage tube 5 and the lower protective sleeve 9.

[0025] like Figure 1As shown, the fixing device includes two groups of flanges 6 and two groups of connecting screws 7. The flanges 6 are respectively provided at one-third and two-thirds of the total length of the outer wall of the upper protective storage 5. Two groups of through holes are provided on the two groups of flanges 6. The upper sealing sleeve 11 is provided with threaded holes. The upper and lower ends of the two groups of connecting screws 7 are respectively provided with external threads. The two groups of connecting screws 7 pass through the through holes of the two groups of flanges 6 respectively. The bottom ends of the two groups of connecting screws 7 are screwed on the threaded holes of the upper sealing sleeve 11 through external threads. Two groups of nuts are respectively screwed on the upper external threads of the two groups of connecting screws 7.

[0026] In this embodiment, the upper protective keeper 5 and the lower protective sleeve 9 are fixed by a fixing device, and the center lines of the calibration rod 1, the upper protective keeper 5 and the lower protective sleeve 9 are located on the same straight line. At the same time, the upper protective keeper 5 and the lower protective sleeve 9 are prevented from relative rotation. The three are coaxially arranged to ensure that they can be effectively nested and slid, thereby extending the service life of the layered marking bottom assembly. No matter the calibration rod 1 slides upward or downward, the upper protective keeper 5 and the lower protective sleeve 9 will isolate the surrounding strata, protect the calibration rod from stratum interference, and effectively improve the monitoring accuracy and service life.

[0027] Example 2

[0028] On the basis of Example 1, Figure 1 As shown, the utility model is a layered label bottom assembly with a retractable protective tube, which also includes multiple sets of positioning pieces 10. The multiple sets of positioning pieces 10 are provided with two layers, and each layer has four pieces uniformly arranged at equal angles on the outer side of the lower protective sleeve 9. The positioning pieces 10 are of a right-angled triangle structure.

[0029] like Figure 1 As shown, it also includes a benchmark adapter 4 and a protective sleeve hoop 8. The benchmark adapter 4 is screwed on the top of the benchmark pole 1, and the protective sleeve hoop 8 is installed on the top of the upper protective storage 5;

[0030] like Figure 1 As shown, it also includes multiple sets of locking plates 14, which are arranged at the lower part of the outer side wall of the lower protective sleeve 9;

[0031] like Figure 3 As shown, the lower part of the base inserting rod 3 is a claw-shaped structure;

[0032] like Figure 2 As shown, the piston ring 2, the upper sealing sleeve 11, the lower sealing sleeve 12 and the middle sealing sleeve 13 all include a rigid sealing device body and a plurality of O-rings;

[0033] like Figure 1 and Figure 2 As shown, the cavity surrounded by the upper protective storage 5, the lower protective sleeve 9, the upper sealing sleeve 11, the lower sealing sleeve 12, the middle sealing sleeve 13, the calibration rod 1 and the piston ring 2 is filled with lubricating oil;

[0034] In this embodiment, after the upper protective keeper 5 and the lower protective sleeve 9 are assembled, two sets of connecting screws 7 are installed to prevent the lower protective sleeve 9 from continuing to fall, so that the upper protective keeper 5 and the lower protective sleeve 9 can be stretched and retracted to a certain extent, which is convenient for installation and operation. The positioning piece 10 is used to ensure that the main mark is pressed into the target formation together with the layered mark bottom assembly. When the main mark is lifted, the positioning piece 10 and the surrounding formations form effective damping so that the lower protective sleeve 9 will not move up with the main mark, and the bottom of the lower protective sleeve 9 is still in close contact with the mark bottom drill 3, thereby effectively avoiding the situation where the calibration rod 1 is exposed and directly contacts the formation, effectively isolating the influence of the deformation of the surrounding formations on the calibration rod 1, ensuring the precision of precise measurement, and extending the service life.

[0035] The utility model provides a layered marking bottom assembly with a retractable protective tube. When working, the upper protective tube 5 and the lower protective sleeve 9 are fixed by a fixing device so that the center lines of the marking rod 1, the upper protective tube 5 and the lower protective sleeve 9 are located on the same straight line.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A layered marking base assembly with a retractable protective tube, comprising a marking rod (1) and a marking base inserting pin (3), wherein the marking base inserting pin (3) is screwed and fixed to the bottom end of the marking rod (1); characterized in that: The device also comprises a fixing device, a piston ring (2), an upper protective storage tube (5), a lower protective sleeve (9), an upper sealing sleeve (11), a lower sealing sleeve (12) and a middle sealing sleeve (13), wherein the piston ring (2) is mounted on the upper part of the outer wall of the calibration rod (1), the upper protective storage tube (5) is sleeved on the outer wall of the calibration rod (1), the outer wall of the piston ring (2) is tightly attached to the inner wall of the upper protective storage tube (5), the middle sealing sleeve (13) is sleeved on the outer wall of the calibration rod (1), and the bottom end of the upper protective storage tube (5) is in contact with the middle sealing sleeve (13). 3) The top ends are tightly attached, the lower protective sleeve (9) is sleeved on the outer wall of the upper protective storage tube (5), the lower sealing sleeve (12) is sleeved on the outer wall of the calibration rod (1), the bottom end of the lower protective sleeve (9) is tightly attached to the top end of the lower sealing sleeve (12), the top end of the lower protective sleeve (9) is provided with an upper sealing sleeve (11) tightly attached to the surface of the upper protective storage tube (5), and a fixing device is provided on the outer wall of the upper protective storage tube (5), and the fixing device is used to fix the upper protective storage tube (5) and the lower protective sleeve (9) in connection.

2. A layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: The fixing device comprises two groups of flanges (6) and two groups of connecting screws (7). The flanges (6) are respectively arranged at one third and two thirds of the total length of the outer wall of the upper protective storage (5). The two groups of flanges (6) are provided with two groups of through holes. The upper sealing sleeve (11) is provided with threaded holes. The upper and lower ends of the two groups of connecting screws (7) are respectively provided with external threads. The two groups of connecting screws (7) respectively pass through the through holes of the two groups of flanges (6). The bottom ends of the two groups of connecting screws (7) are screwed onto the threaded holes of the upper sealing sleeve (11) through external threads. The two groups of nuts are respectively screwed onto the upper external threads of the two groups of connecting screws (7).

3. A layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: It also comprises a plurality of groups of positioning pieces (10), wherein the plurality of groups of positioning pieces (10) are arranged in two layers, with four pieces in each layer being evenly arranged at equal angles on the outer side of the lower protective sleeve (9), and the positioning pieces (10) are of a right-angled triangle structure.

4. A layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: It also comprises a benchmark pole adapter (4) and a protective sleeve hoop (8), wherein the benchmark pole adapter (4) is screwed on the top of the benchmark pole (1), and the protective sleeve hoop (8) is installed on the top of the upper protective storage (5).

5. The layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: It also includes a plurality of sets of locking plates (14), which are arranged at the lower part of the outer side wall of the lower protective sleeve (9).

6. A layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: The lower part of the base inserting pin (3) is in a claw-like structure.

7. A layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: The piston ring (2), the upper sealing sleeve (11), the lower sealing sleeve (12) and the middle sealing sleeve (13) all comprise a rigid sealing device body and a plurality of O-type sealing rings.

8. The layered label bottom assembly with a retractable protective tube as claimed in claim 1, characterized in that: The cavity surrounded by the upper protective storage tube (5), the lower protective sleeve (9), the upper sealing sleeve (11), the lower sealing sleeve (12), the middle sealing sleeve (13), the calibration rod (1) and the piston ring (2) is filled with lubricating oil.

Images