CN114575241A - Bridge load monitoring support - Google Patents

Abstract

The invention discloses a bridge load monitoring support which comprises an anchoring assembly, an upper seat, a lower seat, a force measuring part, a middle seat pull ring and an elastic basin block, wherein an upper basin ring is formed on one of the lower part of the upper seat and the upper part of the middle seat, an upper plug head is formed on the other one of the lower part of the upper seat and the upper part of the middle seat, a lower basin ring is formed on the other one of the lower part of the middle seat and the upper part of the lower seat, a lower plug head is formed on the other one of the lower part of the middle seat and the upper part of the lower seat, the upper plug head is matched with the inner wall and/or the outer wall of the upper basin ring to form an upper cavity, the lower plug head is matched with the inner wall and/or the outer wall of the lower basin ring to form a lower cavity, one of a spoke type force measuring sensor and the elastic basin block is positioned in the upper cavity, and the other one of the spoke type force measuring sensor and the elastic basin block is positioned in the lower cavity. The invention not only can realize the requirements of the bridge support on bearing, displacement and rotation angle, but also can ensure that the load cell can accurately measure the upper load of the bridge structure under the condition of only receiving vertical pressure, and meanwhile, the invention has wide applicable temperature range and does not need field calibration by the spoke type load cell which can directly read data.

Description

Bridge load monitoring support

Technical Field

The invention belongs to the technical field of bridges, and particularly relates to a bridge load monitoring support.

Background

As is well known, the rapid development of bridge engineering strongly promotes the coordinated development of regional economy and the integration of human communication. In the bridge construction and operation process, the accurate load of obtaining the bridge supporting position has very important meaning to the operation safety and the maintenance of bridge. In the construction process, the stress state of the bridge structure in the construction stage can be monitored by measuring the load of the upper structure, and the deviation can be adjusted and corrected in time when the unbalance loading or overload condition occurs, so that the construction safety and progress are guaranteed. In the operation process, the bridge load is monitored for a long time, an early warning signal can be sent out when the bridge is abnormal in special climate, traffic conditions or operation conditions, and basis and guidance are provided for decision making of bridge maintenance, maintenance and management.

However, most of the existing bridge dynamometric supports are basin-type dynamometric supports, lateral pressures of rubber plates arranged in the supports under different vertical pressures are measured, and then the pressure stress is converted into an electric signal by a pressure transmitter to be output, so that the problems in the following aspects can be caused by a dynamometric scheme of the dynamometric supports:

(1) the same pressure-bearing rubber plate is pressed at different temperatures, and the lateral pressure stress of the same pressure-bearing rubber plate can be greatly different. The method is greatly influenced by temperature, and the accuracy of the measured force value is not enough.

(2) The method needs to carry out field calibration, and the difference between the laboratory environment and the project field environment is large, so that the error of the pot type force measuring support after the laboratory calibration is still large during field measurement.

(3) The dynamometry support only needs to measure the vertical pressure, but in the actual operation process, the functions of displacement, corner, horizontal shearing resistance, vertical tensile strength and the like of the support need to be considered, so that the defects of complicated structure, high cost and the like of the dynamometry support are caused.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an improved bridge load monitoring support which is simple in structure, clear in force transmission, accurate in force measurement and cost-saving.

In order to solve the technical problems, the invention adopts the following technical scheme: a bridge load monitoring support comprises an anchoring assembly, an upper seat, a lower seat, a force measuring part, a middle seat pull ring and an elastic basin block, wherein an upper basin ring is formed on one of the lower part of the upper seat and the upper part of the middle seat, an upper plug head is formed on the other one of the lower part of the middle seat and the upper part of the lower seat, a lower basin ring is formed on the other one of the lower part of the middle seat and the upper part of the lower seat, a lower plug head is formed on the other one of the lower seat and the lower seat, the upper plug head is matched with the inner wall and/or the outer wall of the upper basin ring to form an upper cavity, the lower plug head is matched with the inner wall and/or the outer wall of the lower basin ring to form a lower cavity, the force measuring part is a spoke type force measuring sensor, one of the spoke type force measuring sensor and the elastic basin block is located in the upper cavity, the other one of the spoke type force measuring sensor and the upper seat or the lower seat are connected through the middle seat pull ring.

Preferably, the middle seat comprises a middle seat plate, and the upper plug head and the lower plug head are respectively positioned at the top and the bottom of the middle seat plate and are integrally formed; the upper basin ring and the upper seat are integrally formed, and the lower basin ring and the lower seat are integrally formed. Therefore, the support is convenient to combine and form, and the production cost is reduced.

According to a specific implementation and preferable aspect of the invention, the upper plug head and the lower plug head are arranged symmetrically up and down and each comprises a first plug body and a second plug body which extend outwards from the surface of the middle base plate and are concentric, wherein the outer diameter of the second plug body is larger than that of the first plug body, and the outer diameter of the second plug body is smaller than that of the middle base plate, so that when the upper cavity and the lower cavity are formed, the second plug body is attached to the inner walls of the upper basin ring and the lower basin ring from the outer wall surface. The molding not only meets the requirement of stability of the formed upper and lower cavities, but also ensures that the horizontal force is limited by the basin ring and the plug head of the support when the support is acted by the horizontal force, so that the force measuring sensor arranged in the cavity of the support is only acted by the pressure and is not acted by the horizontal shearing force, thereby not only protecting the force measuring sensor, but also ensuring the measuring precision of the force measuring sensor.

Preferably, spoke formula force cell sensor installs at last die cavity and contradicts between the top and the bottom of last die cavity, and elasticity basin piece is filled at die cavity down and is contradicted between the top and the bottom of die cavity down, and wherein elasticity basin piece is from the top edge round self circumference formation unfilled corner, and the sealing washer is placed to unfilled corner department, and well bedplate is connected with the upper seat to well seat pull ring. In this example, the material of the seal ring is brass. Here, through the design of unfilled corner, the sealing washer of being convenient for is placed, so, after elasticity basin piece atress, effectively avoid leading to the card to go into between chock plug and the die cavity because of deformation, influence the motion of the relative die cavity of chock plug. Meanwhile, brass has a relatively long service life.

The spoke type force measuring sensor is placed in a cavity of the upper seat plate, the vertical bearing capacity is determined by the design load, and the design load range of a single force measuring sensor is 500 KN-10000 KN; the temperature range of the sensor is-30 to +70 ℃, and the comprehensive precision of the sensor is 0.5 percent FS; safety overload range 120% FS.

In this example, the upside of force cell sensor is provided with the bolt hole for with upper plate bolted connection, prevent to cause the sensor to produce horizontal displacement or rotation in the support in the bridge operation process.

The elasticity basin piece is the super elastomer, and after the radial constraint of support bedplate down to the rubber basin piece level, the vertical bearing capacity of basin piece obtained very big promotion, can satisfy the bridge simultaneously and warp the demand to corner and displacement. Therefore, the bearing and rotating functions of the support are exerted.

Preferably, an upper draw hook is formed on the periphery of the upper pelvic ring, a lower draw hook matched with the upper draw hook is formed on the middle seat draw ring, the upper draw hook and the lower draw hook are hooked, and the lower part of the middle seat draw ring is connected to the middle seat plate. The purpose is as follows: form a snap-fit arrangement to resist accidental overturning moments and protect the support and the internal load cell.

According to a further embodied and preferred aspect of the invention, the upper portion of the middle seat forms an upper basin ring and the lower portion of the middle seat forms a lower plug; the upper seat comprises an upper seat plate and an upper plug head; the lower seat comprises a lower seat plate and a lower basin ring, the elastic basin block is filled in the upper cavity, an unfilled corner is formed in the edge of the top of the elastic basin block around the periphery of the elastic basin block, a sealing ring is placed at the unfilled corner, and the spoke type force measuring sensor is installed in the lower cavity. Specifically, the sealing ring is made of brass. In this example, the material of the seal ring is brass. Here, through the design of unfilled corner, the sealing washer of being convenient for is placed, so, after elasticity basin piece atress, effectively avoid leading to the card to go into between chock plug and the die cavity because of deformation, influence the motion of the relative die cavity of chock plug. Meanwhile, brass has a relatively long service life.

Preferably, the lower plug head comprises a first plug body extending downwards from the bottom of the upper basin ring and a second plug body extending downwards from the first plug body, wherein the outer diameter of the upper basin ring is larger than that of the second plug body, the outer diameter of the second plug body is larger than that of the first plug body, an upper hook is formed, the middle seat pull ring is installed at the top of the lower basin ring and forms a lower hook with the lower basin ring, and the upper hook is matched with the lower hook when the lower cavity is formed. Form a snap-fit arrangement to resist accidental overturning moments and protect the support and the internal load cell.

Further, the upper plug head comprises a third plug body and a fourth plug body which are concentric, wherein the outer diameter of the fourth plug body is larger than that of the third plug body, and the third plug body is fixedly connected to the bottom of the upper seat plate and is integrally formed; or the third plug body is in one-way or two-way sliding connection with the upper seat plate through the connecting piece which slides linearly, and when the upper cavity is formed, the fourth plug body is attached to the inner wall surface of the upper basin ring from the outer wall surface.

In addition, one spoke type force measuring sensor is arranged, and the center of the spoke type force measuring sensor is aligned with the center of the lower cavity or the upper cavity; or a plurality of spoke type force measuring sensors are uniformly distributed around the circumference of the lower cavity or the upper cavity by taking the center of the lower cavity or the upper cavity as a reference.

Preferably, the bridge load monitoring support further comprises a signal port communicated with the spoke type load cell and a data display instrument communicated with the signal port.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

the invention not only can realize the requirements of the bridge support on bearing, displacement and rotation angle, but also can accurately measure the upper load of the bridge structure under the condition of only vertical pressure, thereby providing basis and guidance for the decision of bridge maintenance, repair and management, and meanwhile, the invention has wide applicable temperature range, does not need field calibration and has strong practicability through the spoke type force transducer which can directly read data.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic front view of a bridge load monitoring mount according to embodiment 1;

FIG. 2 is a schematic top view of a part of embodiment 1;

FIG. 3 is an exploded view of the structure of example 1;

FIG. 4 is a schematic view of a plurality of spoke load cells distributed therein;

FIG. 5 is a schematic front view (fixed type) of a bridge load monitoring mount according to embodiment 2;

FIG. 6 is a schematic front view (one-way sliding type) of a bridge load monitoring mount according to embodiment 3;

FIG. 7 is a schematic front view (two-way sliding type) of a bridge load monitoring mount according to embodiment 4;

wherein: 1. an anchor assembly; 10. an anchor bolt; 11. embedding anchor bolts; 2. an upper seat; 20. an upper seat plate; 21. putting the pot on a pot ring; 210. pulling the hook; 3. a lower seat; 30. a lower seat plate; 31. a basin ring is arranged; 4. a force measuring component; 5. a middle seat; 50. a middle seat plate; 51. an upper chock plug; 511. a first plug body; 512. a second plug body; 52. a lower plug head; 521. a first plug body; 522. a second plug body; 6. a middle pull ring; 60. a lower drag hook; 7. an elastic basin block; 70. unfilled corners; 71. a seal ring; s1, an upper cavity; s2, a lower cavity; 8. a signal port; 9. h, a sliding part; h1, a sliding pair; h10, mirror surface stainless steel; h11, a slide plate; h2, guide bars.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Example 1

As shown in fig. 1 and 2, the bridge load monitoring support of the present embodiment includes an anchor assembly 1, an upper seat 2, a lower seat 3, a force measuring component 4, a middle seat 5, a middle seat pull ring 6, and an elastic basin block 7.

Specifically, the anchor assembly 1 comprises an anchor bolt 10 and an embedded anchor bolt 11, wherein the anchor assembly 1 is used for connecting the support with the bridge structure and the lower bridge abutment.

Referring to fig. 3, the upper seat 2 includes an upper seat plate 20, an upper basin ring 21 located at the bottom of the upper seat plate 20, wherein the upper seat plate 20 and the upper basin ring 21 are integrally formed.

In this example, an upper hook 210 is formed on the outer periphery of the upper pelvic ring 21, a lower hook 60 is formed on the middle seat pull ring 6 to be engaged with the upper hook 210, and the upper hook 210 and the lower hook 60 are engaged with each other. The purpose is as follows: form a snap-fit arrangement to resist accidental overturning moments and protect the support and the internal load cell.

The middle seat 5 includes a middle seat plate 50, and the top and bottom of the middle seat plate 50 form an upper plug 51 and a lower plug 52, respectively.

In this example, the middle seat plate 50, the upper plug 51, and the lower plug 52 are integrally formed.

Meanwhile, the upper plug 51 and the lower plug 52 are disposed up and down symmetrically.

Specifically, the upper plug 51 includes a first plug body 511 and a second plug body 512 extending outward from the surface of the middle seat plate 50 and being concentric, wherein the outer diameter of the second plug body 512 is larger than that of the first plug body 511, and the outer diameter of the second plug body 512 is smaller than that of the middle seat plate 50.

The structure of the lower plug 52 is also quite clear from symmetry.

The lower seat 3 comprises a lower seat plate 30 and a lower basin ring 31 formed on the lower seat plate 30, wherein the lower basin ring 31 and the lower seat plate 30 are integrally formed.

In this example, when the support is assembled, the upper basin ring 21 and the upper plug head 51 are matched to form an upper cavity S1, and the lower basin ring 31 and the lower plug head 52 are matched to form a lower cavity S2, wherein the force measuring part 4 is located in the upper cavity S1, the elastic basin block 7 is installed in the lower cavity S2, and when the upper cavity and the lower cavity are formed, the second plug body 512 is attached to the inner walls of the upper basin ring 21 and the lower basin ring 31 from the outer wall surface. The molding not only meets the requirement of stability of the formed upper and lower cavities, but also ensures that the horizontal force is limited by the basin ring and the plug head of the support when the support is acted by the horizontal force, so that the force measuring sensor arranged in the cavity of the support is only acted by the pressure and is not acted by the horizontal shearing force, thereby not only protecting the force measuring sensor, but also ensuring the measuring precision of the force measuring sensor.

The spoke load cell is mounted in the upper cavity S1 and interferes between the top and bottom of the upper cavity S1.

In this example, the upside of force cell sensor is provided with the bolt hole for with upper plate bolted connection, prevent to cause the sensor to produce horizontal displacement or rotation in the support in the bridge operation process.

One spoke type force measuring sensor is arranged, and the center of the spoke type force measuring sensor is aligned with the center of the cavity.

Of course, as shown in fig. 4, there may be a plurality of spoke-type load cells that are uniformly distributed around the circumference of the cavity with the center of the cavity as a reference. That is to say, when vertical design load is great, can dispose 2, 3, 4 or even many more force cell sensors in support inside, even symmetrical arrangement lets each force cell sensor bear in coordination.

Meanwhile, the spoke type force measuring sensor is placed in a cavity of the upper seat plate, the vertical bearing capacity is determined by the design load, and the design load range of a single force measuring sensor is 500 KN-10000 KN; the temperature range of the sensor is-30 to +70 ℃, and the comprehensive precision of the sensor is 0.5 percent FS; safety overload range 120% FS.

The elastic basin block 7 is filled in the lower cavity S2 and interfered between the top and the bottom of the lower cavity S2, wherein the elastic basin block 7 forms a notch 70 from the top edge around the circumference of the elastic basin block.

That is to say, elasticity basin piece 7 is the super elastomer, and when bedplate 20 is radially restrained the rubber basin piece level, the vertical bearing capacity of basin piece obtains greatly promoting, can satisfy the bridge simultaneously and warp the demand to corner and displacement, consequently, the bearing and the rotation function of performance support.

In this example, a seal ring 71 is placed at the unfilled corner 70, and the material of the seal ring 71 is brass. Here, through the design of unfilled corner 70, the sealing washer 71 of being convenient for is placed, so, after elasticity basin piece 7 atress, effectively avoid leading to the card to be gone into between chock plug and the die cavity because of the deformation, influence the motion of chock plug relative die cavity. Meanwhile, brass has a relatively long service life.

Meanwhile, the upper part of the middle seat pull ring 6 is hooked with the upper basin ring 21, and the lower part is fixedly connected with the middle seat plate 50 through a connecting bolt.

In addition, a through hole is formed in one side of the upper basin ring 21, and the bridge load monitoring support further comprises a signal port 8 communicated with the spoke type force measuring sensor and a data display instrument 9 communicated with the signal port 8.

Specifically, the signal port 8 is installed in the through hole and is communicated with the data display instrument 9 through a data transmission line.

In this example, the data display 9 is used to visually feed back the measured load data. The data display instrument 9 can be designed to be in a battery power supply mode by adopting a direct current power supply mode, and is convenient for field operation.

In summary, the present embodiment has the following advantages:

1. compared with the traditional basin-type force measuring support, the force measuring support has the advantages of simple structure, direct force transmission, definite functions of all parts and no mutual interference. The force measuring system is only acted by vertical pressure, and the requirements of displacement and corner of the support are met by the traditional basin-type support.

2. Through structural design, the sensor is only acted by vertical pressure under the support operation condition, and can not be acted by horizontal shear force, rotation and bending moment, so that the measurement accuracy and the safe operation of the sensor are guaranteed.

3. The force measuring sensor does not need to sense the performance change of the rubber material, the applicable temperature range is wide, the field calibration is not needed, and after the calibration is finished when the sensor leaves a factory, the project field can realize accurate force measurement.

Example 2

As shown in fig. 5, the bridge load monitoring mount in this example is substantially the same in construction as in example 1, except that it is a fixed load cell.

Specifically, the upper seat 2 includes an upper seat plate 20 and an upper plug 51 located at the bottom of the upper seat plate 20, wherein the upper seat plate 20 and the upper plug 51 are integrally formed.

The upper part of the middle seat 5 is formed with an upper basin ring 21, the lower part of the middle seat 5 is formed with a lower plug head 52, wherein the lower plug head 52 comprises a first plug body 521 extending downwards from the bottom of the upper basin ring, and a second plug body 522 continuing to extend downwards from the first plug body 521, wherein the outer diameter of the upper basin ring 21 is larger than that of the second plug body 522, and the outer diameter of the second plug body 522 is larger than that of the first plug body 521 and forms an upper hook.

The lower seat 3 comprises a lower seat plate 30 and a lower basin ring 31 positioned on the lower seat plate 30.

In this example, the upper plug 51 is inserted into the upper basin 21 to form an upper cavity S1, and the lower plug 52 is inserted into the lower basin 31 to form a lower cavity S2. When the support is acted by horizontal force, the horizontal force is transmitted through the support outer frame and the piston. The force sensor arranged in the support cavity is only under the action of pressure and is not under the action of horizontal shear force, the force sensor is protected, and the measurement precision of the force sensor is ensured. The plane of the bottom of the plug head is in vertical hard contact with the force measuring sensor, and the contact surface can be separated.

The elastic basin block 7 is arranged in the upper cavity S1 and plays the bearing and rotating functions of the support.

The spoke-type load cell is mounted in the lower cavity S2 in alignment from the center.

The middle seat pull ring 6 is positioned on the lower basin ring 31 through a bolt piece and forms a lower hook, when the lower cavity S2 is formed, the upper hook and the lower hook are matched to form a mutually buckled mode so as to resist the accidental overturning moment and protect the support and the internal force measuring sensor.

Meanwhile, in this example, a through hole is formed in the lower basin ring 31, the signal port 8 is installed in the through hole, and the data transmission wire connects the signal port 8 and the data display 9.

Example 3

As shown in fig. 6, the bridge load monitoring mount in this example is substantially the same in structure as in example 2, except that it is a one-way sliding load cell.

Specifically, a sliding member h is formed between the upper seat plate 20 and the upper plug 51.

In this example, the sliding member h comprises a sliding pair h1 and a guiding bar h2, wherein the sliding pair h1 comprises a mirror surface stainless steel h10 positioned on the bottom surface of the upper seat plate 20 and a sliding plate h11 arranged on the upper chock plug 51.

The guide bars h2 have two and are correspondingly disposed on the bottom surface of the seat plate 20 on opposite sides in the sliding direction.

Meanwhile, the mirror surface stainless steel h10 and the sliding plate h11 are correspondingly arranged on the upper plug head 51 and the contacted guide barrier h 2. The purpose of which is to achieve a smooth sliding of the support.

That is, in this example, the sliding pair is composed of a sliding plate and mirror surface stainless steel, the material of the sliding plate is usually polytetrafluoroethylene, ultra-high molecular weight polyethylene, etc., the surface of the sliding plate is usually provided with an oil reservoir, and the inside of the oil reservoir is coated with lubricating silicone grease. The mirror surface stainless steel is connected with the support component in a welding mode, and the sliding plate material is connected with the support component in an embedded anchoring mode.

Specifically, the upper seat plate 20 is provided with a guide barrier along the direction of the designed displacement of the support, a sliding plate material is embedded on the inner side, and the side wall of the piston head on the piston is welded with mirror surface stainless steel, which is a sliding pair arranged along the direction of the designed displacement of the support. The purpose of which is to achieve a smooth sliding of the support.

The lower plug head 52 of the middle seat 5 is arranged in the lower basin ring 31 on the lower seat plate 30. When the support is acted by horizontal force, the horizontal force is transmitted through the support outer frame and the piston. The force sensor arranged in the support cavity is only under the action of pressure and is not under the action of horizontal shear force, the force sensor is protected, and the measurement precision of the force sensor is ensured. The bottom plane of the piston head is in vertical hard contact with the load cell, and the contact surfaces can be separated.

The lower plug 52 of the middle seat 5 has the function of a tension resisting plate, and forms a mutual buckling mode with the inner lifting tension resisting plate of the lower basin ring 31 on the lower seat plate 30 to resist the accidental overturning moment and protect the support and the internal force measuring sensor.

The force measuring sensor can transmit vertical force and can feed back the vertical load at the support in real time.

The lower surface of the lower seat plate 30 is provided with a counter bore type bolt through hole for anchoring the force sensor inside the support, and the force sensor is prevented from generating horizontal displacement or rotation inside the support in the bridge operation process.

The side wall of the lower basin ring 31 is provided with a through hole for routing a data transmission wire.

Example 4

As shown in fig. 7, the bridge load monitoring mount in this example is substantially the same in construction as in example 3, except that it is a bi-directional sliding load cell.

The sliding pair h1 adopted by the bidirectional sliding force measuring support plays the displacement function of the support.

Specifically, the sliding pair h1 is composed of a sliding plate h11 and mirror surface stainless steel h10, the sliding plate h11 is usually made of polytetrafluoroethylene, ultrahigh molecular weight polyethylene and the like, an oil storage tank is usually arranged on the surface of the sliding plate, and lubricating silicone grease is coated in the oil storage tank. The mirror surface stainless steel h10 is welded with the support component, and the sliding plate material is connected with the support component in an embedded anchoring mode.

In this example, a mirror surface stainless steel h10 is fixed to the bottom surface of the upper seat plate 20, and a slide plate h11 is attached to the top surface of the upper plug 51.

The present invention has been described in detail above, but the present invention is not limited to the above-described embodiments. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a bridge load monitoring support, its includes anchor assembly, seat of honour, lower, dynamometry part, its characterized in that: the bridge load monitoring support also comprises a middle seat, a middle seat pull ring and an elastic basin block, wherein one of the lower part of the upper seat and the upper part of the middle seat is provided with an upper basin ring, the other is provided with an upper chock plug, a lower basin ring is formed on one of the lower part of the middle seat and the upper part of the lower seat, a lower choke plug is formed on the other, the upper chock plug is matched with the inner wall and/or the outer wall of the upper basin ring to form an upper cavity, the lower chock plug is matched with the inner wall and/or the outer wall of the lower basin ring to form a lower cavity, the force measuring part is a spoke type force measuring sensor, one of the spoke type force measuring sensor and the elastic basin block is positioned in the upper cavity, the other one is positioned in the lower cavity, the middle seat pull ring connects the middle seat with the upper seat or the lower seat provided with the spoke type force measuring sensor.

2. The bridge load monitoring support according to claim 1, wherein: the middle seat comprises a middle seat plate, and the upper plug head and the lower plug head are respectively positioned at the top and the bottom of the middle seat plate and are integrally formed; the upper basin ring and the upper seat are integrally formed, and the lower basin ring and the lower seat are integrally formed.

3. The bridge load monitoring support according to claim 2, wherein: go up the chock plug and the upper and lower symmetry setting of lower chock plug, and all include certainly well bedplate surface outwards extends and concentric first cock body and second cock body, wherein second cock body external diameter is greater than first cock body external diameter, just second cock body external diameter is less than the external diameter of well bedplate forms go up the die cavity with during the die cavity down, the second cock body is in from the laminating of outer wall go up the basin ring with the inner wall of basin ring down.

4. The bridge load monitoring support according to claim 3, wherein: the spoke type force measuring sensor is installed in the upper cavity and abutted between the top and the bottom of the upper cavity, the elastic basin block is filled in the lower cavity and abutted between the top and the bottom of the lower cavity, an unfilled corner is formed on the edge of the top of the elastic basin block around the circumference of the elastic basin block, a sealing ring is placed at the unfilled corner, and the middle seat plate is connected with the upper seat through the middle seat pull ring.

5. The bridge load monitoring support according to claim 4, wherein: an upper draw hook is formed on the periphery of the upper basin ring, a lower draw hook matched with the upper draw hook is formed on the middle seat draw ring, the upper draw hook and the lower draw hook are hooked, and the lower part of the middle seat draw ring is connected to the middle seat plate.

6. The bridge load monitoring support according to claim 1, wherein: the upper part of the middle seat forms the upper basin ring, and the lower part of the middle seat forms the lower chock plug; the upper seat comprises an upper seat plate and an upper plug head; the lower seat comprises a lower seat plate and a lower basin ring, the elastic basin block is filled in the upper cavity, an unfilled corner is formed in the edge of the top of the elastic basin block around the periphery of the elastic basin block, a sealing ring is placed at the unfilled corner, and the spoke type force measuring sensor is installed in the lower cavity.

7. The bridge load monitoring support according to claim 6, wherein: lower stopper head include certainly go up the first stopper body of the bottom downwardly extending of basin ring, certainly first stopper body continues downwardly extending's second stopper body, wherein the external diameter of going up the basin ring is greater than the external diameter of second stopper body, the external diameter of second stopper body is greater than the external diameter of first stopper body, and form the upper hook, well seat pull ring is installed the top of basin ring down and with the basin ring constitutes down the hook down, forms during the die cavity down, the upper hook with down the hook cooperatees.

8. The bridge load monitoring support according to claim 6, wherein: the upper plug head comprises a third plug body and a fourth plug body which are concentric, wherein the outer diameter of the fourth plug body is larger than that of the third plug body, and the third plug body is fixedly connected to the bottom of the upper seat plate and is integrally formed; or the third plug body is connected with the upper seat plate in a one-way or two-way sliding manner through a connecting piece which slides linearly, and when the upper cavity is formed, the fourth plug body is attached to the inner wall surface of the upper basin ring from the outer wall surface.

9. The bridge load monitoring support according to claim 1, wherein: one spoke type force measuring sensor is arranged, and the center of the spoke type force measuring sensor is aligned with the center of the lower cavity or the upper cavity; or a plurality of spoke type force measuring sensors are arranged and are uniformly distributed around the circumference of the lower cavity or the upper cavity by taking the center of the lower cavity or the upper cavity as a reference.

10. The bridge load monitoring support according to claim 1, wherein: the bridge load monitoring support also comprises a signal port communicated with the spoke type force measuring sensor and a data display instrument communicated with the signal port.

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