Inclination measuring instrument for building pile foundation
By adopting a combined structure of a buffer sliding rod, a buffer spring, a limit plate and a sealing rubber pad in the building pile foundation inclination measuring instrument, the problem of the inclinometer being damaged due to the intrusion of water or soil during measurement is solved, and a more accurate measurement is achieved. High sealing effect and longer service life.
Patent Information
- Application Number
- CN202421040844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-14
AI Technical Summary
When measuring the inclination of building pile foundations, existing inclinometers are prone to damage due to water or soil entering the inclinometer and connecting head.
A building pile foundation inclination measuring instrument is designed, which adopts a combined structure of a buffer sliding rod and a buffer spring. Through the cooperation of the limit plate and the sealing rubber pad, the sealing between the inclinometer rod and the connecting head is realized to prevent water or Impurities enter.
It effectively improves the sealing effect of the inclinometer connection, extends the service life of the inclinometer rod, reduces the probability of damage, and protects the inclinometer rod through the buffer structure to prevent damage to the pile foundation hole.
Smart Images
Figure CN222379068U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of inclinometers, in particular to a building pile foundation inclination measuring instrument. Background Art
[0002] Inclinometer is an instrument used to measure the top angle and azimuth of engineering structures such as boreholes, foundation pits, foundations, walls and dam slopes. Inclinometer is an in-situ monitoring instrument for measuring the inclination and azimuth of boreholes. In foreign countries, inclinometers were used to carry out in-situ monitoring of geotechnical engineering such as earth-rock dams, roadbeds, slopes and tunnels in the 1950s. Since the 1980s, my country has introduced inclinometers produced in the United States, Japan, Britain and other countries to carry out in-situ monitoring of some major geotechnical engineering projects, and achieved good results. Some related research institutions subsequently developed intelligent inclinometers such as resistance strain type, accelerometer type and electronic meter type. Various types of inclinometers are widely used in the fields of water conservancy and hydropower, mineral metallurgy, transportation and urban construction geotechnical engineering, ensuring the design, construction and use safety of geotechnical engineering.
[0003] When measuring the inclination of a building pile foundation, an inclinometer is needed. However, when assembling some existing inclinometers, an inclinometer rod is usually connected to a connector and a cable, and then the inclinometer rod is placed inside the pile foundation hole to measure the pile foundation hole. However, when the inclinometer rod is placed inside the pile foundation hole, water or soil inside the pile foundation hole may easily enter between the inclinometer rod and the connector, thereby interfering with the cable, and thus easily causing damage to the inclinometer. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a building pile foundation inclination measuring instrument which can solve the problems of the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a building pile foundation inclination measuring instrument, including a pile foundation inclinometer, a butt joint is fixedly installed on the top of the pile foundation inclinometer, a connector is threadedly connected on the surface of the butt joint, a connecting cable is fixedly connected to the top of the connector, a limiting hole is opened inside the lower end of the pile foundation inclinometer, a buffer sliding rod is slidably connected inside the limiting hole, the buffer sliding rod slides through the pile foundation inclinometer and extends to the outside of the pile foundation inclinometer, and a bottom protective plate is fixedly installed on one end of the buffer sliding rod extending to the outside of the pile foundation inclinometer.
[0006] Preferably, the buffer sliding rod extends to the surface of one end outside the pile foundation inclinometer rod and is movably sleeved with a buffer spring, the upper end of the buffer spring is fixedly installed on the bottom of the pile foundation inclinometer rod, and the lower end of the buffer spring is fixedly connected to the top of the bottom protective plate.
[0007] Preferably, the interior of the limiting hole is slidably connected to a limiting plate, and the lower side of the limiting plate is fixedly connected to the upper end of the buffer sliding rod.
[0008] Preferably, a movement-limiting slideway is provided on the surface of the pile foundation inclinometer rod, and a movement-limiting block is slidably connected inside the movement-limiting slideway.
[0009] Preferably, a movable sealing sleeve is fixedly mounted on the movement limiting block, and the movable sealing sleeve is slidably connected on the surface of the pile foundation inclinometer rod and the connecting head.
[0010] Preferably, a sealing rubber pad is fixedly installed on one side of the movable sealing sleeve close to the connecting head and the pile foundation inclinometer rod.
[0011] Preferably, a positioning rod is fixedly installed inside the limiting movement slide, the limiting movement block is slidably connected on the surface of the positioning rod, and a return spring is movably sleeved on the surface of the positioning rod, and the two ends of the return spring are respectively fixedly connected to the limiting movement block and the inner wall of the limiting movement slide.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] (1) When sealing, the building pile foundation inclination measuring instrument installs the connecting head onto the docking head, and then the movable sealing sleeve is no longer pushed, so that the limiting moving block and the movable sealing sleeve are reset by the elastic force of the reset spring, and then the movable sealing sleeve and the sealing rubber pad seal the connection between the connecting head and the pile foundation inclinometer rod, thereby preventing water or impurities from entering between the connecting head and the pile foundation inclinometer rod, improving the sealing effect of the connection between the connecting head and the pile foundation inclinometer rod, thereby increasing the service life of the pile foundation inclinometer rod and reducing the probability of damage to the pile foundation inclinometer rod.
[0014] (2) The building pile foundation inclination measuring instrument moves the pile foundation inclinometer rod toward the inside of the pile foundation hole. When the pile foundation inclinometer rod moves to the bottom of the pile foundation hole, the bottom protective plate contacts the inside of the pile foundation hole, so that the bottom protective plate does not move. Gravity causes the pile foundation inclinometer rod to move downward, causing the limit plate to slide inside the limit hole, thereby squeezing the buffer spring, making it easier for the pile foundation inclinometer rod to enter the inside of the pile foundation hole for buffering, thereby preventing the lower end of the pile foundation inclinometer rod from causing damage to the pile foundation inside the pile foundation hole, thereby improving the protection of the pile foundation inclinometer rod and reducing the probability of damage to the pile foundation inclinometer rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0016] Figure 1 This is a structural schematic diagram of a building pile foundation inclination measuring instrument of the utility model;
[0017] Figure 2 For this utility model Figure 1 The enlarged schematic diagram at A in the middle;
[0018] Figure 3 This is an internal schematic diagram of the pile foundation deflection measuring rod of the utility model;
[0019] Figure 4 It is the internal schematic diagram of the movable sealing sleeve of the utility model.
[0020] Figure numerals: 1. Pile foundation inclinometer rod; 2. Movable sealing sleeve; 3. Connector; 4. Buffer sliding rod; 5. Bottom protection plate; 6. Buffer spring; 7. Limit hole; 8. Limit plate; 9. Sealing rubber pad; 10. Limit movement block; 11. Limit movement slide; 12. Reset spring; 13. Positioning rod; 14. Butt joint; 15. Connecting cable. DETAILED DESCRIPTION
[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0022] See also Figure 1-4 The utility model provides a technical solution: a building pile foundation inclination measuring instrument, including a pile foundation inclinometer 1, a butt joint 14 is fixedly installed on the top of the pile foundation inclinometer 1, a connector 3 is threadedly connected on the surface of the butt joint 14, and a connecting cable 15 is fixedly connected to the top of the connector 3.
[0023] The pile foundation inclinometer rod 1 is usually installed in a vertical borehole passing through an unstable soil layer to a lower stable stratum. A digital vertical movable inclinometer probe, a connecting cable 15, a pulley device and a readout instrument are used to observe the deformation of the inclinometer tube. The first observation can establish the initial section of the inclinometer tube displacement. Subsequent observations will show the change of the section displacement when the ground moves. During the observation, the probe moves from the bottom to the top of the inclinometer tube, pauses at a half-meter interval and measures the inclination. The inclination of the probe is measured by two force-balanced servo accelerometers, one of which measures the inclination of the probe. The longitudinal position of the inclined tube groove is the inclination of the measuring wheel on the inclinometer probe in the plane. Another accelerometer measures the inclination perpendicular to the measuring wheel plane. The inclination can be converted into lateral displacement. By comparing the current and initial observation data, the change in lateral offset can be determined, showing the movement displacement of the stratum. Drawing the change in offset can obtain a high-resolution displacement cross-section diagram. The cross-section diagram helps to determine the size, depth, direction and rate of ground movement displacement, which makes it easier to measure the inclination of building pile foundations and improves the convenience of measuring the inclination of building pile foundations.
[0024] A limiting hole 7 is provided inside the lower end of the pile foundation inclinometer rod 1, and a buffer sliding rod 4 is slidably connected inside the limiting hole 7. The buffer sliding rod 4 slides through the pile foundation inclinometer rod 1 and extends to the outside of the pile foundation inclinometer rod 1. A bottom protective plate 5 is fixedly installed on one end of the buffer sliding rod 4 extending to the outside of the pile foundation inclinometer rod 1. A buffer spring 6 is movably sleeved on the surface of one end of the buffer sliding rod 4 extending to the outside of the pile foundation inclinometer rod 1. The upper end of the buffer spring 6 is fixedly installed on the bottom of the pile foundation inclinometer rod 1, and the lower end of the buffer spring 6 is fixedly connected to the top of the bottom protective plate 5.
[0025] The interior of the limiting hole 7 is slidably connected to a limiting plate 8, and the lower side of the limiting plate 8 is fixedly connected to the upper end of the buffer sliding rod 4.
[0026] The pile foundation inclinometer 1 is inserted into the pile foundation hole, and then the pile foundation inclinometer 1 moves toward the inside of the pile foundation hole. When it moves to the bottom of the pile foundation hole, the bottom protection plate 5 contacts the inside of the pile foundation hole, so that the bottom protection plate 5 will not move. Gravity will cause the pile foundation inclinometer 1 to move downward, so that the limit plate 8 slides inside the limit hole 7, and then the buffer spring 6 is squeezed, so that it is convenient for the pile foundation inclinometer 1 to enter the inside of the pile foundation hole for buffering, thereby preventing the lower end of the pile foundation inclinometer 1 from causing damage to the pile foundation inside the pile foundation hole, thereby improving the protection of the pile foundation inclinometer 1 and reducing the probability of damage to the pile foundation inclinometer 1.
[0027] A movement limiting slide 11 is provided on the surface of the pile foundation inclinometer rod 1, and a movement limiting block 10 is slidably connected inside the movement limiting slide 11. A movable sealing sleeve 2 is fixedly installed on the movement limiting block 10. The movable sealing sleeve 2 is slidably connected on the surface of the pile foundation inclinometer rod 1 and the connecting head 3. A sealing rubber pad 9 is fixedly installed on one side of the movable sealing sleeve 2 close to the connecting head 3 and the pile foundation inclinometer rod 1. A positioning rod 13 is fixedly installed inside the movement limiting slide 11, and the movement limiting block 10 is slidably connected on the surface of the positioning rod 13. A return spring 12 is movably sleeved on the surface of the positioning rod 13, and both ends of the return spring 12 are fixedly connected to the movement limiting block 10 and the inner wall of the movement limiting slide 11 respectively.
[0028] When the connector 3 is removed from the butt joint 14, the movable sealing sleeve 2 is pushed downward, so that the movable sealing sleeve 2 and the sealing rubber pad 9 slide on the surface of the connector 3 and the pile foundation inclinometer rod 1, so that the limiting movement block 10 slides inside the limiting movement slideway 11 and on the surface of the positioning rod 13, so that the limiting movement block 10 squeezes the reset spring 12, so that the sealing rubber pad 9 and the movable sealing sleeve 2 do not seal the connection between the connector 3 and the pile foundation inclinometer rod 1, and then the connector 3 is removed from the butt joint 14, and the sealing is removed. When the connector 3 is installed on the docking joint 14, the movable sealing sleeve 2 is no longer pushed, so that the limiting movement block 10 and the movable sealing sleeve 2 are reset by the elastic force of the reset spring 12, so that the movable sealing sleeve 2 and the sealing rubber pad 9 seal the connection between the connector 3 and the pile foundation inclinometer rod 1, thereby preventing water or impurities from entering between the connector 3 and the pile foundation inclinometer rod 1, improving the sealing effect of the connection between the connector 3 and the pile foundation inclinometer rod 1, thereby increasing the service life of the pile foundation inclinometer rod 1 and reducing the probability of damage to the pile foundation inclinometer rod 1.
[0029] Working principle:
[0030] Inserting the pile foundation inclinometer 1 into the pile foundation hole will cause the pile foundation inclinometer 1 to move toward the inside of the pile foundation hole. When it moves to the bottom of the pile foundation hole, the bottom protection plate 5 will contact the inside of the pile foundation hole, so that the bottom protection plate 5 will not move. Gravity will cause the pile foundation inclinometer 1 to move downward, causing the limit plate 8 to slide inside the limit hole 7, thereby squeezing the buffer spring 6, making it easier for the pile foundation inclinometer 1 to enter the pile foundation hole for buffering.
[0031] Push the movable sealing sleeve 2 downward, so that the movable sealing sleeve 2 and the sealing rubber pad 9 slide on the surface of the connecting head 3 and the pile foundation inclinometer rod 1, and then the limiting movement block 10 slides on the inside of the limiting movement slide 11 and the surface of the positioning rod 13, so that the limiting movement block 10 squeezes the reset spring 12, so that the sealing rubber pad 9 and the movable sealing sleeve 2 do not seal the connection between the connecting head 3 and the pile foundation inclinometer rod 1, and then the connecting head 3 is removed from the docking head 14. When sealing, the connecting head 3 is installed on the docking head 14, and then the movable sealing sleeve 2 is no longer pushed, so that the limiting movement block 10 and the movable sealing sleeve 2 are reset by the elastic force of the reset spring 12, and then the movable sealing sleeve 2 and the sealing rubber pad 9 seal the connection between the connecting head 3 and the pile foundation inclinometer rod 1, thereby preventing water or impurities from entering between the connecting head 3 and the pile foundation inclinometer rod 1.
[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A building pile foundation inclination measuring instrument, comprising a pile foundation inclinometer (1), characterized in that: A butt joint (14) is fixedly installed on the top of the pile foundation inclinometer rod (1), a connector (3) is threadedly connected to the surface of the butt joint (14), a connecting cable (15) is fixedly connected to the top of the connector (3), a limit hole (7) is provided inside the lower end of the pile foundation inclinometer rod (1), a buffer sliding rod (4) is slidably connected inside the limit hole (7), the buffer sliding rod (4) slides through the pile foundation inclinometer rod (1) and extends to the outside of the pile foundation inclinometer rod (1), and a bottom protective plate (5) is fixedly installed on one end of the buffer sliding rod (4) extending to the outside of the pile foundation inclinometer rod (1).
2. The building pile foundation inclination measuring instrument according to claim 1, characterized in that: The buffer sliding rod (4) extends to the surface of one end outside the pile foundation inclinometer rod (1), and a buffer spring (6) is movably sleeved thereon; the upper end of the buffer spring (6) is fixedly mounted on the bottom of the pile foundation inclinometer rod (1), and the lower end of the buffer spring (6) is fixedly connected to the top of the bottom protection plate (5).
3. The building pile foundation inclination measuring instrument according to claim 2, characterized in that: The interior of the limiting hole (7) is slidably connected to a limiting plate (8), and the lower side of the limiting plate (8) is fixedly connected to the upper end of the buffer sliding rod (4).
4. The building pile foundation inclination measuring instrument according to claim 3, characterized in that: A movement-limiting slideway (11) is provided on the surface of the pile foundation inclinometer rod (1), and a movement-limiting block (10) is slidably connected inside the movement-limiting slideway (11).
5. The building pile foundation inclination measuring instrument according to claim 4, characterized in that: A movable sealing sleeve (2) is fixedly mounted on the movement limiting block (10), and the movable sealing sleeve (2) is slidably connected on the surface of the pile foundation inclinometer rod (1) and the connecting head (3).
6. The building pile foundation inclination measuring instrument according to claim 5, characterized in that: A sealing rubber pad (9) is fixedly mounted on one side of the movable sealing sleeve (2) close to the connecting head (3) and the pile foundation inclinometer rod (1).
7. The building pile foundation inclination measuring instrument according to claim 6, characterized in that: A positioning rod (13) is fixedly installed inside the movement limiting slideway (11); the movement limiting block (10) is slidably connected on the surface of the positioning rod (13); a return spring (12) is movably sleeved on the surface of the positioning rod (13); and two ends of the return spring (12) are respectively fixedly connected to the movement limiting block (10) and the inner wall of the movement limiting slideway (11).