An intelligent support with height adjustment function

Abstract

The present invention discloses an intelligent support with height adjustment function, including an embedded plate, a height adjustment pad, an upper seat plate, a sliding seat, a base and a lower seat plate, wherein the base is located on the top surface of the lower seat plate and the upper surface of the base is inwardly recessed to form a cavity, the lower part of the sliding seat is sleeved in the cavity, the top surface of the sliding seat is slidably connected with the bottom surface of the upper seat plate, the height adjustment pad is located between the bottom surface of the embedded plate and the top surface of the upper seat plate, the bottom surface of the embedded plate is provided with a positioning plate distributed in a herringbone shape, the positioning plate is located outside the upper seat plate and is tightly fitted with the sides of the upper seat plate and the height adjustment pad. The present invention is simple and reliable in height adjustment and has a force measurement function.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to an intelligent bearing with a height adjustment function. Background Art

[0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It can reliably transmit the reaction force and deformation (displacement and rotation) of the superstructure of the bridge to the substructure of the bridge. The spherical bearing has large bearing capacity, large displacement, flexible rotation angle, consistent rotation performance in all directions, and a wide temperature range; therefore, the spherical bearing is widely used in various types of highway, municipal and railway bridges.

[0003] However, the traditional spherical bearing has no force measurement function. It is impossible to detect the stress condition of the bearing, read the vertical bearing capacity of the bearing, accurately understand the internal force distribution of each section of the structure, and verify the reliability of the bridge design theory and the rationality of the design method, which brings great inconvenience to the maintenance and structural monitoring of the bearing. When the spherical bearing is abnormal during operation, the stress condition of the bearing cannot be detected intuitively, so the operation status of the bridge superstructure cannot be judged, which is not conducive to timely monitoring and evaluation of the health status of the bridge structure. In addition, when the uneven settlement of the pier foundation on the soft soil foundation, the slight deformation of various prefabricated beams and continuous structures after tensioning, and the inevitable construction error of the beam structure support pad stone elevation, the bridge bearing is unevenly loaded or even the "three-legged" phenomenon occurs, which will change the stress state of the upper and lower structures of the bridge, posing a hidden danger to the safety of the structure. In addition, the traditional spherical bearing does not have a stepless height adjustment function, and cannot be steplessly adjusted for the construction height error and the bridge height difference generated during use, so as to adjust the stress of each bearing.

[0004] Therefore, it is necessary to understand the stress condition of the bridge bearings in time and to adjust them in time when the bearings are unloaded and become empty, so as to avoid three-point support when vehicles pass the bridge. This is an economical and effective solution to avoid catastrophic accidents on bridges. In addition, the internal sensors of existing force measuring bearings are not easy to replace. Summary of the invention

[0005] The purpose of the present invention is to provide a simple, economical and practical height-adjustable force measuring support, which can accurately, continuously and effectively monitor the vertical bearing capacity of the support and can adjust the height to achieve uniform pressure bearing. The height-adjusting pad is easy to install, and the sensor is easy to install and remove. During installation, it can be accurately known whether the sensor is installed in place.

[0006] In order to solve the above technical problems, the present invention adopts the following solutions:

[0007] The invention discloses an intelligent support with a height adjustment function, comprising an embedded plate, a height-adjusting pad, an upper seat plate, a sliding seat, a base and a lower seat plate, wherein the base is located on the top surface of the lower seat plate and the upper surface of the base is recessed inward to form a cavity, the lower portion of the sliding seat is sleeved in the cavity, the top surface of the sliding seat is slidably connected to the bottom surface of the upper seat plate, the height-adjusting pad is located between the bottom surface of the embedded plate and the top surface of the upper seat plate, the bottom surface of the embedded plate is provided with a positioning plate distributed in a herringbone shape, the positioning plate is located on the outer side of the upper seat plate and is tightly fitted to the sides of the upper seat plate and the height-adjusting pad.

[0008] Due to the adoption of the above-mentioned technical scheme, the present invention satisfies the normal buffering, energy dissipation and shock absorption function of the support through the sliding of the sliding seat, and achieves the effect of adjusting the height of the support by changing the number of height-adjusting pads between the upper seat plate and the embedded plate, thereby changing the stress conditions of each support. The height-adjusting pad is a steel pad with good flatness, which makes the vertical stress of the support uniform. After the stress of each support is changed, it is not easy for the entire beam to have three-point support, effectively protecting the safety of the bridge. Through the positioning plates distributed in a herringbone shape on the bottom surface of the upper seat plate, the height-adjusting pad can be quickly installed or removed from the notches of the three positioning plates, thereby improving the efficiency of the support height adjustment. The positioning plates limit the position of the height-adjusting pad from three directions, so that the height-adjusting pad can maintain a good integrity, and the height-adjusting pads are not easy to be misaligned with each other. In this way, the overall vertical stress of the support is better, and at the same time, it can prevent the height-adjusting pad from sliding out, resulting in the height of the support being affected, thereby affecting the safety of the bridge.

[0009] Preferably, it also includes a force measuring elastomer, which is installed at the bottom of the cavity. The force measuring elastomer is composed of an intermediate elastomer and an annular elastomer. The lower surface of the sliding seat is attached to the upper surface of the force measuring elastomer. A sensor is installed on the side of the base, and the measuring end of the sensor is in close contact with the side of the annular elastomer.

[0010] Due to the adoption of the above technical scheme, the force-measuring elastomer is a solid elastic material with properties and characteristics similar to those of a fluid and volume incompressibility under a certain pressure state. When subjected to compressive stress from the upper structure, the force-measuring elastomer can transmit the compressive stress in all directions without changing its magnitude. The force-measuring elastomer is composed of an intermediate elastomer and an annular elastomer. Since the force-measuring elastomer is easily damaged under long-term pressure, it needs to be completely replaced when replaced. The force-measuring elastomer is divided into two parts, the intermediate elastomer and the annular elastomer, which will not affect the transmission of force. The two parts of the elastomer can also be replaced separately to save material costs. A sensor is installed on the side of the base, and the measuring end of the sensor is in close contact with the side of the annular elastomer. The force measuring system uses a signal line to transmit the pressure wavelength signal output by the sensor to the demodulator after sensing the compressive stress change of the force-measuring elastomer. After the demodulator analyzes and processes the wavelength signal, it transmits it to the computer via a wireless network or a wired network for processing, and then intuitively displays the actual load of the support and compares it with the normal use load of the support. When an abnormality occurs, an alarm is issued to realize long-distance monitoring of the support load so that the support height can be adjusted in time.

[0011] Preferably, the base is provided with replacement holes for installing the sensor on its circumference, and there are four replacement holes distributed in a cross shape on the circumference of the base.

[0012] Due to the adoption of the above technical scheme, four replacement holes distributed in a cross shape are opened on the circumference of the base. The replacement holes are convenient for the operator's hands to pass through, and the sensor can be manually fixed to the side of the force measuring elastic body by bonding. In this way, the operator can accurately know whether the sensor is installed in place, ensure the normal operation of the support force measuring system, can directly feel the contact between the sensor and the side wall of the force measuring bearing body, and can also directly observe the installation position of the sensor through the replacement hole. When removing or replacing, it only needs to be manually removed and replaced directly through the replacement hole. There is no threaded connection between the sensor and the side wall of the base, so the thread will not rust, making the installation and disassembly of the sensor of the present invention faster, and can timely know whether the sensor is installed in place, greatly saving installation time, saving time and effort.

[0013] Preferably, a sealing plate fixed on the base is provided at the opening of the replacement hole, and the sealing plate is used to close the replacement hole to prevent impurities from entering and contaminating the sensor to affect its function, thereby ensuring the accuracy of the monitoring data.

[0014] Preferably, the sensor is an alloy thin film resistive pressure sensor, which has a compact appearance, high measurement accuracy (up to level 0.2 and above), strong corrosion resistance, strong vibration resistance, and can accurately measure in a wide temperature range (-200℃~100℃), which is suitable for the external environment of the support.

[0015] Preferably, the sliding seat includes a spherical crown lining and a bottom basin located on the bottom surface of the spherical crown lining, the bottom surface of the spherical crown lining is a convex spherical surface, the top surface of the bottom basin is provided with a concave spherical surface matching the spherical crown lining, and the bottom surface of the spherical crown lining and the top surface of the bottom basin form a spherical pair connection.

[0016] Preferably, a spherical skateboard is provided between the spherical crown lining and the base basin, and the spherical skateboard is embedded in the upper surface of the base basin. The spherical skateboard is a polytetrafluoroethylene skateboard or a modified polytetrafluoroethylene skateboard. The spherical skateboard is fastened and embedded in the groove of the concave spherical surface of the base basin by adhesive bonding in combination with screws or anchoring. The adhesive is insoluble and thermosetting. The convex spherical surface of the spherical crown lining can be coated with stainless steel plate or electroplated with hard chrome to enhance its smoothness and wear resistance.

[0017] Preferably, a plane slide plate is provided between the spherical crown lining plate and the upper seat plate, and the plane slide plate is embedded in the upper surface of the spherical crown lining plate. The upper seat plate and the spherical crown lining plate form a plane sliding friction pair. The plane slide plate is a polytetrafluoroethylene slide plate or a modified polytetrafluoroethylene slide plate. The plane friction pair meets the displacement requirements of the beam body during thermal expansion and contraction. The bottom surface of the upper seat plate may also be provided with a mirror stainless steel slide plate that cooperates with the plane slide plate to enhance its smoothness and wear resistance.

[0018] Preferably, a circle of limiting plates is provided around the bottom surface of the upper seat plate, the limiting plates are located outside the bottom basin, the limiting plates are close to the side of the bottom basin but not in contact with it, and the limiting plates and the upper seat plate are welded or integrally formed to prevent the bottom basin from slipping and avoid the risk of falling beams.

[0019] Preferably, the embedded plate is arranged on the bottom surface of the lower seat plate, and a height-adjusting pad is provided between the lower seat plate and the embedded plate. By setting the embedded plate on the bottom surface of the lower seat plate and changing the number of height-adjusting pads between the lower seat plate and the embedded plate, the height of the support is adjusted to change the force of the support. Other settings are the same as above.

[0020] The present invention has the beneficial effects:

[0021] 1. The present invention has a compact structure and a reasonable design. The vertical bearing capacity of the support can be detected by a force measuring elastic body. By changing the number of height-adjusting pads, the support can be infinitely height-adjusted. The force measuring and height-adjusting methods are simple and reliable.

[0022] 2. The support and the alloy thin film resistive pressure sensor are relatively independent, and the replacement holes around the base facilitate installation, maintenance and replacement in the future.

[0023] 3. By integrating multiple supports of the structure through network technology, real-time centralized detection and automatic monitoring of the forces on multiple supports can be achieved.

[0024] 4. Through the positioning plates distributed in a triangular shape on the bottom surface of the upper seat plate, the height adjustment pads can be quickly installed or removed from the gaps of the three positioning plates to improve the efficiency of the bearing height adjustment. The positioning plates limit the position of the height adjustment pads from three directions, so that the height adjustment pads can maintain good integrity and are not easily misaligned with each other. In this way, the overall vertical force of the bearing is better, and at the same time, it can prevent the height adjustment pads from sliding out, which will affect the bearing height and thus affect the safety of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a top view schematic diagram of the base and the lower seat plate;

[0027] Figure 3 This is a schematic diagram of the distribution of positioning plates on the embedded plates;

[0028] Figure 4 Another structural schematic diagram of the present invention;

[0029] Figure 5 This is a top view of the structure of the elastomer.

[0030] Figure numerals: 1-embedded plate, 2-upper seat plate, 3-lower seat plate, 4-force measuring elastomer, 41-middle elastomer, 42-annular elastomer, 5-height adjustment pad, 6-spherical crown lining plate, 7-bottom basin, 8-plane slide plate, 9-spherical slide plate, 10-sensor, 11-positioning plate, 12-limiting plate, 13-sealing plate, 14-base, 15-replacement hole. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1 , 3, an intelligent support with height adjustment function, including an embedded plate 1, a height adjustment pad 5, an upper seat plate 2, a sliding seat, a base 14 and a lower seat plate 3, the embedded plate 1 is directly embedded in the bottom surface of the beam body, the embedded plate 1 is fixedly connected to the upper seat plate 2 by bolts, the lower seat plate 3 is fixed to the pier by bolts, the sliding seat and the base 14 are arranged between the upper and lower seat plates, and then the entire support is fixed between the beam body and the pier, the base 14 is located on the top surface of the lower seat plate 3 and the upper surface of the base 14 is concave inward to form a cavity, and the lower sleeve of the sliding seat It is arranged in the cavity, and the top surface of the sliding seat is slidably connected with the bottom surface of the upper seat plate 2. The sliding of the sliding seat satisfies the normal buffering energy dissipation and shock absorption function of the support. The height-adjusting support of this design has all the functions of conventional spherical support bearing capacity, displacement or limit, rotation and other flexibility. The height-adjusting pad 5 is located between the bottom surface of the embedded plate 1 and the top surface of the upper seat plate 2. The bottom surface of the embedded plate 1 is provided with a positioning plate 11 distributed in a herringbone shape. The positioning plate 11 is located on the outer side of the upper seat plate 2 and is tightly fitted with the sides of the upper seat plate 2 and the height-adjusting pad 5. When the support needs to adjust the height By changing the number of height-adjusting pads 5 between the upper seat plate 2 and the embedded plate 1, the height of the support can be adjusted, thereby changing the stress condition of each support. The height-adjusting pads 5 are steel pads with good flatness, so that the vertical stress of the support is uniform. After the stress of each support is changed, it is not easy for the entire beam to have three-point support, which effectively protects the safety of the bridge. Through the positioning plates 11 distributed in a herringbone shape on the bottom surface of the upper seat plate 2, the height-adjusting pads 5 can be quickly installed or removed from the notches of the three positioning plates 11, thereby improving the efficiency of the height adjustment of the support. The positioning plates 1 The position of the height-adjusting pad 5 is restricted from three directions, so that the height-adjusting pad 5 can maintain good integrity. The centers of gravity of all the height-adjusting pads 5 are on the same straight line, and the height-adjusting pads 5 are not easily misaligned with each other. In this way, the overall vertical force of the support is better. The positioning plate 11 is located on the outer side of the upper seat plate 2 and is tightly fitted with the upper seat plate 2 and the side of the height-adjusting pad 5. The bottom end of the positioning plate 11 extends to the side of the upper seat plate 2. In this way, the positioning plate 11 can also prevent the height-adjusting pad 5 from sliding out, which affects the height of the support and further affects the safety of the bridge.

[0036] Example 2

[0037] like Figure 1 and 5 As shown, by installing the force-measuring elastic body 4 at the bottom of the cavity, the lower surface of the sliding seat is fitted to the upper surface of the force-measuring elastic body 4, and the sensor 10 is installed on the side of the base 14. The measuring end of the sensor 10 is in close contact with the side of the force-measuring elastic body 4. The force-measuring elastic body 4 is a solid elastic material with properties and volume incompressibility that are similar to fluids under a certain pressure state. When subjected to compressive stress from the upper structure, the force-measuring elastic body 4 can transmit the compressive stress in all directions without changing its magnitude; the force-measuring elastic body 4 is designed to be composed of an intermediate elastomer 41 and an annular elastomer 42. Since the force-measuring elastomer 4 is easily damaged when subjected to long-term pressure, it needs to be completely replaced when replaced. Therefore, the force-measuring elastomer 4 is divided into two parts: an intermediate elastomer 41 and an annular elastomer 42. The annular elastomer 42 is arranged circumferentially of the intermediate elastomer 41 and fits with the side of the intermediate elastomer 41, so that it will not affect the transmission of the force on the intermediate elastomer 41. , and the two parts of the elastomer can be replaced separately when they are damaged in the later stage, without replacing all of them, saving material costs. A sensor 10 is installed on the side of the base 14, and the measuring end of the sensor 10 is in close contact with the side of the annular elastomer 42; the sensor 10 is an alloy thin film resistive pressure sensor, which has a small appearance, high measurement accuracy (up to level 0.2 and above), strong corrosion resistance, strong vibration resistance, and can accurately measure in a wide temperature range (-200℃~100℃), which is in line with the external environment of the support. The force measuring system uses a signal line to transmit the sensor 10 to sense the compressive stress change of the force measuring elastomer 4 and output a pressure wavelength signal to the demodulator. After the demodulator analyzes and processes the wavelength signal, it transmits it to the computer via a wireless network or a wired network for processing, and then intuitively displays the actual load of the support and compares it with the normal use load of the support. When an abnormality occurs, an alarm is issued to realize long-distance monitoring of the support load so that the support height can be adjusted in time.

[0038] Example 3

[0039] like Figure 2As shown, a replacement hole 15 for installing the sensor 10 is opened on the circumference of the base 14, and there are four replacement holes 15 and they are distributed in a cross shape on the circumference of the base 14. Four replacement holes 15 distributed in a cross shape are opened on the circumference of the base 14, and the replacement holes 15 are convenient for the operator's hand to pass through, and the sensor 10 can be directly fixed to the side of the force measuring elastomer 4 by bonding manually. In this way, the operator can accurately know whether the sensor 10 is installed in place, ensure the normal operation of the support force measuring system, can directly feel the contact between the sensor 10 and the side wall of the force measuring bearing body 4, and can also directly observe the installation position of the sensor 10 through the replacement hole 15. When removing or replacing, it only needs to be manually removed and replaced directly through the replacement hole 15. There is no threaded connection between the sensor 10 and the side wall of the base 14, so the thread will not be rusted, which makes the installation and disassembly of the sensor 10 of the present invention faster, and can timely know whether the sensor 10 is installed in place, which greatly saves installation time and saves time and effort.

[0040] A sealing plate fixed on the base 14 is provided at the opening of the replacement hole 15. The sealing plate 13 is used to seal the replacement hole 15 to prevent impurities from entering and contaminating the sensor 10 to affect its function, thereby ensuring the accuracy of the monitoring data.

[0041] Example 4

[0042] like Figure 1 As shown, the sliding seat includes a spherical crown lining plate 6 and a bottom basin 7 located on the bottom surface of the spherical crown lining plate 6, the bottom surface of the spherical crown lining plate 6 is a convex spherical surface, and the top surface of the bottom basin 7 is provided with a concave spherical surface matching the spherical crown lining plate 6, and the bottom surface of the spherical crown lining plate 6 and the top surface of the bottom basin 7 form a spherical pair connection.

[0043] A spherical skateboard 9 is provided between the spherical crown lining 6 and the bottom basin 7. The spherical skateboard 9 is embedded in the upper surface of the bottom basin 7. The spherical skateboard 9 is a polytetrafluoroethylene skateboard or a modified polytetrafluoroethylene skateboard. The spherical skateboard 9 is fastened and embedded in the groove of the concave spherical surface of the bottom basin 7 by adhesive bonding, screws or anchoring. The adhesive is insoluble and thermosetting. The convex spherical surface of the spherical crown lining 6 can be coated with stainless steel plate or electroplated with hard chrome to enhance its smoothness and wear resistance.

[0044] A flat slide plate 8 is provided between the spherical crown lining plate 6 and the upper seat plate 2. The flat slide plate 8 is embedded in the upper surface of the spherical crown lining plate 6. The upper seat plate 2 and the spherical crown lining plate 6 form a flat sliding friction pair. The flat slide plate 8 is a polytetrafluoroethylene slide plate or a modified polytetrafluoroethylene slide plate. The flat friction pair meets the displacement requirements of the beam body during thermal expansion and contraction. The bottom surface of the upper seat plate 2 can also be provided with a mirror stainless steel slide plate that cooperates with the flat slide plate 8 to enhance its smoothness and wear resistance.

[0045] Example 5

[0046] like Figure 1 As shown, a circle of limiting plates 12 are provided circumferentially on the bottom surface of the upper seat plate 2. The limiting plates 12 are located outside the bottom basin 14. The limiting plates 12 are close to the side of the bottom basin 14 and do not touch it. The limiting plates 12 and the upper seat plate 2 are welded or integrally formed to prevent the bottom basin 14 from sliding off and avoid the risk of falling beams.

[0047] Example 6

[0048] like Figure 4 As shown, another scheme of the present invention is to set the embedded plate 1 on the bottom surface of the lower seat plate 3, and the embedded plate 1 is connected to the pier by anchor bolts. A height-adjusting pad 5 is provided between the lower seat plate 3 and the embedded plate 2. By setting the embedded plate 1 on the bottom surface of the lower seat plate 3 and changing the number of height-adjusting pads 5 between the lower seat plate 3 and the embedded plate 1, the height of the support is adjusted to change the force on the support. Other force measurement, limit and other settings are the same as the above-mentioned embodiment.

[0049] The principle of the present invention is as follows: first, the support is installed between the beam body and the pier, and the force measuring elastic body 4 is isotropic when subjected to pressure in the cavity, and the pressure of each part inside is uniform, and the positive pressure is basically the same as the pressure of the force measuring elastic body 4 on the base side. The sensor 10 end arranged on the outer side of the force measuring elastic body 4 senses the change of the compressive stress of the force measuring elastic body 4 and outputs a pressure wavelength signal to the demodulator. After the demodulator analyzes and processes the wavelength signal, it transmits it to the computer through a wireless network or a wired network for processing, and then intuitively displays the actual load of the support and compares it with the normal use load of the support. When an abnormality occurs, an alarm is issued to achieve The support load is monitored remotely, and then the height of the support with abnormal force is adjusted. The beam is lifted for a certain distance, the anchor bolts of the support are loosened, and the height adjustment pad 5 is inserted or removed from the gaps of the three positioning plates 11 according to the requirements of the support being empty or overloaded, so that the force on each support is uniform, and then the anchor bolts are tightened to complete the support height adjustment. If the sensor 10 needs to be replaced, the sealing plate 13 is directly opened, and the operator reaches in from the replacement hole 15 with one hand, takes out the sensor 10 to be replaced, installs the new sensor 10, and restores the sealing plate 13 to its original state. The replacement of the sensor 10 is convenient, fast and efficient.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. According to the technical essence of the present invention, within the spirit and principles of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. An intelligent support with height adjustment function, comprising an embedded plate (1), a height adjustment pad (5), an upper seat plate (2), a sliding seat, a base (14) and a lower seat plate (3), characterized in that: The base (14) is located on the top surface of the lower seat plate (3) and the upper surface of the base (14) is recessed inward to form a cavity. The lower part of the sliding seat is sleeved in the cavity. The top surface of the sliding seat is slidably connected to the bottom surface of the upper seat plate (2). The height adjustment pad (5) is located between the bottom surface of the embedded plate (1) and the top surface of the upper seat plate (2). The bottom surface of the embedded plate (1) is provided with a positioning plate (11) distributed in a herringbone shape. The positioning plate (11) is located on the outer side of the upper seat plate (2) and is tightly fitted with the side surfaces of the upper seat plate (2) and the height adjustment pad (5). It also includes a force measuring elastic body (4), which is installed at the bottom of the cavity. The force measuring elastic body is composed of an intermediate elastic body (41) and an annular elastic body (42). The lower surface of the sliding seat is in contact with the upper surface of the force measuring elastic body (4). A sensor (10) is installed on the side of the base (14), and the measuring end of the sensor (10) is in close contact with the side of the annular elastic body (42).

2. The intelligent support with height adjustment function according to claim 1, characterized in that: The base (14) is provided with replacement holes (15) for installing the sensor (10) in the circumference thereof, and there are four replacement holes (15) distributed in a cross shape in the circumference of the base (14).

3. The intelligent support with height adjustment function according to claim 2, characterized in that: A sealing plate (13) fixed on the base (14) is provided at the opening of the replacement hole (15).

4. The intelligent support with height adjustment function according to claim 1, characterized in that: The sensor (10) is an alloy thin film resistance pressure sensor.

5. The intelligent support with height adjustment function according to claim 1, characterized in that: The sliding seat comprises a spherical crown lining plate (6) and a bottom basin (7) located on the bottom surface of the spherical crown lining plate (6); the bottom surface of the spherical crown lining plate (6) is a convex spherical surface, and the top surface of the bottom basin (7) is provided with a concave spherical surface matching the spherical crown lining plate (6); the bottom surface of the spherical crown lining plate (6) and the top surface of the bottom basin (7) form a spherical pair connection.

6. The intelligent support with height adjustment function according to claim 5, characterized in that: A spherical slide plate (9) is provided between the spherical crown lining plate (6) and the bottom basin (7). The spherical slide plate (9) is embedded in the upper surface of the bottom basin (7). The spherical slide plate (9) is a polytetrafluoroethylene slide plate or a modified polytetrafluoroethylene slide plate.

7. The intelligent support with height adjustment function according to claim 5, characterized in that: A plane slide plate (8) is provided between the spherical crown lining plate (6) and the upper seat plate (2); the plane slide plate (8) is embedded in the upper surface of the spherical crown lining plate (6); the upper seat plate (2) and the spherical crown lining plate (6) form a plane sliding friction pair; the plane slide plate (8) is a polytetrafluoroethylene slide plate or a modified polytetrafluoroethylene slide plate.

8. The intelligent support with height adjustment function according to claim 1, characterized in that: A circle of limiting plates (12) are provided around the bottom surface of the upper seat plate (2), the limiting plates (12) are located outside the bottom basin (7), and the limiting plates (12) are adjacent to and not in contact with the side surface of the bottom basin (7).

9. The intelligent support with height adjustment function according to claim 1, characterized in that: The embedded plate (1) is arranged on the bottom surface of the lower seat plate (3), and a height-adjusting pad (5) is provided between the lower seat plate (3) and the embedded plate (1).

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