CN210893508U - Bridge beam supports bias voltage detection device - Google Patents

Bridge beam supports bias voltage detection device Download PDF

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Publication number
CN210893508U
CN210893508U CN201922165834.9U CN201922165834U CN210893508U CN 210893508 U CN210893508 U CN 210893508U CN 201922165834 U CN201922165834 U CN 201922165834U CN 210893508 U CN210893508 U CN 210893508U
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CN
China
Prior art keywords
support
annular base
bridge
sliding rod
pressure sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201922165834.9U
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Chinese (zh)
Inventor
张雪松
宋文杰
曾万娟
施洪
桂永旺
薛刚
蒲成忠
张宝龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Huasheng Testing Technology Co ltd
Original Assignee
Chongqing Huasheng Testing Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Chongqing Huasheng Testing Technology Co ltd filed Critical Chongqing Huasheng Testing Technology Co ltd
Priority to CN201922165834.9U priority Critical patent/CN210893508U/en
Application granted granted Critical
Publication of CN210893508U publication Critical patent/CN210893508U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of bridge detection equipment, specifically discloses a bridge beam supports bias voltage detection device, including annular base, annular base is formed by splicing a plurality of circular arc sections that can dismantle the connection, is provided with a plurality of supports that evenly arrange along its circumference on the annular base, all is provided with bias voltage detection mechanism on the support; the bias detection mechanism comprises a shell, a pressure sensor and a sliding rod, a cylindrical cavity is arranged in the shell, the pressure sensor is located at the bottom of the cylindrical cavity, the lower end of the sliding rod extends into the cylindrical cavity and is in sliding connection with the cylindrical cavity, a spring is arranged between the sliding rod and the pressure sensor, and the upper end and the lower end of the spring are connected with the sliding rod and the pressure sensor respectively. The device has the advantages of simple structure, reasonable design, convenient installation, high universality and capability of simply, conveniently and quickly detecting the bias condition of the bridge bearing, and is suitable for detecting the bias voltage of the bridge bearing with various diameters and sizes.

Description

Bridge beam supports bias voltage detection device
Technical Field
The utility model relates to a bridge check out test set technical field especially relates to a bridge beam supports bias voltage detection device.
Background
The bridge bearing is an important structural component for connecting an upper bridge structure and a lower bridge structure, and can reliably transmit the counter force and the deformation (displacement and corner) of the upper bridge structure to the lower bridge structure, so that the actual stress condition of the structure conforms to a calculated theoretical diagram. The bridge support is erected on the pier and the top surface of the bridge support supports the upper structure of the bridge. The bridge support is divided into a steel support, a polytetrafluoroethylene support (a sliding support), a rubber support, a concrete support, a lead support and the like according to different materials. The bridge rubber support is formed by vulcanizing and bonding a plurality of layers of rubber sheets and thin steel plates, has enough vertical rigidity, and can reliably transmit the counter force of an upper structure (namely the upper structure of the bridge) to the abutment; meanwhile, the beam end has good elasticity so as to adapt to the rotation of the beam end; but also has the ability of teaching large shear deformation to meet the horizontal displacement of the superstructure. The bridge rubber support has the advantages of being good in technical performance, simple in structure, low in price, free of maintenance, easy to replace, capable of achieving buffering and shock isolation, low in building height and the like. Therefore, the rubber bearing is one of the most widely used bearings in current bridge structures.
In the installation process of a bridge support (particularly a rubber support), due to the fact that local height control is not in place, installation errors are too large, and therefore the support is biased; along with the continuous effect of dynamic loads such as vehicles, when the corner that the bridge beam supports bore surpassed the allowable corner of support itself and allowed, the bias phenomenon can be more and more serious, not only can make the support atress uneven, local coming to nothing appears, still can cause the damage to the support, reduces the life of support, can make roof beam body atress unreasonable and the fracture appears moreover, seriously influences traffic safety. Therefore, during bridge installation and subsequent use, the bridge supports must be subjected to a bias test.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcoming of prior art, the utility model aims to provide a bridge beam supports bias voltage detection device, its simple structure, reasonable in design and dismouting are simple and convenient, excellent in use effect, can detect out bridge beam supports's bias voltage situation portably, fast.
To achieve the above and other related objects, the basic solution of the present invention is: a bridge support bias voltage detection device comprises an annular base, wherein the annular base is formed by splicing a plurality of detachably connected arc sections, a plurality of supports which are uniformly distributed along the circumferential direction of the annular base are arranged on the annular base, the supports are detachably connected to the annular base, and bias voltage detection mechanisms are arranged on the supports; the bias detection mechanism comprises a shell, a pressure sensor and a sliding rod, a cylindrical cavity is arranged inside the shell, the pressure sensor is located at the bottom of the cylindrical cavity, the lower end of the sliding rod extends into the cylindrical cavity and is in sliding connection with the cylindrical cavity, a spring is arranged between the sliding rod and the pressure sensor, the upper end of the spring is connected with the lower end of the sliding rod, and the lower end of the spring is connected with the pressure sensor.
The working principle and the beneficial effects of the basic scheme are as follows: when the device is used, the annular base is placed on the support base cushion, the annular base is spliced and assembled around the bridge support, then the support is installed on the annular base, the position of the annular base is adjusted to be concentric with the bridge support, and then the bias detection mechanism is used for carrying out bias detection on the bridge support; when the spring is in an original state, the lower end of the sliding rod is located at the topmost end of the cylindrical cavity, during detection, the upper end of the sliding rod is abutted against the bottom of the upper steel plate of the support, the sliding rod slides downwards to compress the spring, the spring transmits force to the pressure sensors, pressure data obtained by measurement of the pressure sensors are compared, and the bias condition of the bridge support is judged.
Furthermore, the support is a strip-shaped adjustable support, the axial direction of the support is parallel to the radial direction of the annular base, and one end of the support, which is close to the center of the annular base, is in contact with the bridge support; the annular base is provided with a plurality of threaded holes, and the support is installed on the annular base through bolts or screws. During installation, when the position of the annular base is determined, each support is in contact with the bridge support through adjusting the position of the support on the annular base, and therefore the annular base is concentric with the bridge support.
Further, the one side that support and bridge beam support contacted is the arc, can make the support more laminate bridge beam support, and then guarantees the accuracy nature of position.
Furthermore, a waist-shaped hole is formed in the support along the length direction of the support, the length direction of the waist-shaped hole is the same as that of the support, and a graduated scale is arranged on the edge of the waist-shaped hole. The waist-shaped hole is arranged, so that the installation position of the support on the base can be conveniently adjusted; the position of how to adjust the support can be known clearly and directly perceived to the setting of scale, makes the position after every support is adjusted keep unanimous, guarantees that annular base and bridge beam supports are concentric, and then guarantees that the interval between the bias voltage detection mechanism of installing on the support and the bridge beam supports equals, guarantees measuring result's accuracy nature.
Furthermore, two waist-shaped holes which are arranged in parallel are formed in the support, and the bias voltage detection mechanism is located between the two waist-shaped holes. Two waist-shaped holes are formed, so that the stability of the support can be improved, and the measurement accuracy is guaranteed.
Furthermore, a cushion block is arranged above the pressure sensor, and the lower end of the spring is fixedly connected to the cushion block. The setting of cushion avoids spring and pressure sensor direct contact and causes the damage to pressure sensor to guarantee pressure sensor's accuracy, extension pressure sensor's life.
Furthermore, a fixing rod is arranged in the cylindrical cavity, a central hole with a downward opening and coaxial with the sliding rod is formed in the sliding rod, the upper end of the fixing rod is inserted into the central hole, the lower end of the fixing rod is fixedly connected with the cushion block, and the spring is sleeved on the fixing rod. The spring is sleeved on the fixed rod, and when the spring is compressed, the spring is not easy to shake, so that the pressure transmission linearity is ensured.
Further, the number of the bias detection mechanisms is at least three.
Furthermore, a supporting block is arranged at the upper end of the sliding rod. During detection, the supporting block abuts against the bottom of the beam body to increase the contact area, avoid sliding deviation of the sliding rod and keep the linearity of pressure transmission.
As described above, the utility model discloses a bridge beam supports bias voltage detection device has following beneficial effect: this device simple structure, reasonable in design, simple to operate is applicable to the bias voltage that detects the bridge beam supports of multiple diameter size of a dimension and detects, and the commonality is high, can portably, short-term test out bridge beam supports's bias voltage situation, and the engineer of being convenient for in time carries out the bias voltage adjustment, avoids support bias voltage and influences the normal use and the security performance of bridge.
Drawings
Fig. 1 is a front view of a bridge support bias detection device in embodiment 1 of the present invention.
Fig. 2 is a top view of the device for detecting the bias voltage of the bridge support in embodiment 1 of the present invention.
Fig. 3 is a top view of the base of fig. 2.
Fig. 4 is a longitudinal sectional view of the bias detecting mechanism in fig. 1.
Fig. 5 is a longitudinal sectional view of a bias detection mechanism of a bridge support bias detection device according to embodiment 2 of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated. The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Description of reference numerals:
the device comprises an annular base 1, an arc section 11, a threaded hole 12, a support 2, a kidney-shaped hole 21, a graduated scale 22, a bias voltage detection mechanism 3, a shell 31, a pressure sensor 32, a sliding rod 33, a central hole 331, a spring 34, a cushion block 35, a fixing rod 36, a supporting block 37, a beam body 4, a support upper steel plate 5, a rubber support 6, a support cushion 7, an abutment 8 and a data transmission line 9.
Example 1
The utility model provides a 2 bias voltage detection devices of bridge beam supports, as shown in fig. 1, fig. 2 and fig. 3, this device includes annular base 1, and annular base 1 can dismantle the circular arc section 11 concatenation of connection by a plurality of and form, and is three in this embodiment, also can be two or more than three circular arc section 11 and constitute, and accessible joint or bolt connection modes such as bolt connect between the circular arc section 11.
The annular base 1 is provided with a plurality of supports 2 evenly arranged along the circumferential direction of the annular base, the supports 2 are detachably connected to the annular base 1, and the supports 2 are provided with bias detection mechanisms 3.
As shown in figure 2, support 2 is adjustable support 2 of bar, and the axial direction of support 2 is on a parallel with annular base 1's radial direction, and support 2 is close to the one end at annular base 1 center and contacts with bridge beam supports 2, and the one side that support 2 and bridge beam supports 2 contacted is the arc, can make support 2 more laminate bridge beam supports 2, and then guarantees the accuracy nature of position. A plurality of threaded holes 12 are formed in the annular base 1, and the support 2 is installed on the annular base 1 through bolts or screws.
Specifically, two waist-shaped holes 21 which are arranged in parallel are formed in the support 2 along the length direction of the support, the length direction of each waist-shaped hole 21 is the same as that of the support 2, a graduated scale 22 is arranged on the edge of each waist-shaped hole 21, and the bias voltage detection mechanism 3 is located between the two waist-shaped holes 21. Set up waist shape hole 21, be convenient for adjust the mounted position of support 2 on the base, the setting of scale 22 can be directly perceived clearly and definitely know how to adjust the position of support 2.
As shown in fig. 4, the bias detection mechanism 3 includes a housing 31, a pressure sensor 32 and a sliding rod 33, wherein a cylindrical cavity is provided inside the housing 31, the pressure sensor 32 is located at the bottom of the cylindrical cavity and is fixedly connected in the cylindrical cavity, and a welding, bolting or bonding manner can be specifically adopted; the sliding rod 33 is an inverted T-shaped rod, the lower end of the sliding rod 33 is located in the cylindrical cavity and is in sliding connection with the cylindrical cavity, a spring 34 is arranged between the sliding rod 33 and the pressure sensor 32, and the upper end of the spring 34 is fixedly connected with the lower end of the sliding rod 33.
A cushion block 35 is arranged above the pressure sensor 32, the lower end of the spring 34 is fixedly connected to the cushion block 35, and the cushion block 35 is fixedly connected to the pressure sensor 32, and can be welded, bolted or bonded. The arrangement of the cushion block 35 avoids the spring 34 from directly contacting the pressure sensor 32 to damage the pressure sensor 32, thereby ensuring the accuracy of the pressure sensor 32 and prolonging the service life of the pressure sensor 32.
The upper end of the sliding rod 33 is fixedly connected with a supporting block 37, and the concrete connection mode can adopt welding, clamping or bolt connection.
The data transmission line 9 of each pressure sensor 32 is connected to a data receiving terminal.
As shown in figure 1, the bridge structure comprises a beam body 4, a support upper steel plate 5, a rubber support 6, a support cushion 7 and an abutment 8 from top to bottom in sequence. In this embodiment, the overall height of the device is greater than the height difference between the support upper steel plate 5 and the support cushion 7. Of course, if the height is not enough, the height difference can be compensated by placing a base plate below the annular base 1.
When the device is used, the annular base 1 is placed on the support base cushion 7, the annular base 1 is spliced and assembled around the bridge support 2, then the support 2 is installed on the annular base 1, the position of the annular base 1 is adjusted, each support 2 is in contact with the bridge support 2 by adjusting the position of the support 2 on the annular base 1, the annular base 1 is concentric with the bridge support 2, and then the bias detection mechanism 3 is used for performing bias detection on the bridge support 2; when the spring 34 is in an original state, the lower end of the sliding rod 33 is located at the topmost end of the cylindrical cavity, during detection, the supporting block 37 is abutted against the bottom of the beam body 4, the sliding rod 33 slides downwards, the spring 34 is compressed, the spring 34 transmits force to the pressure sensors 32, and then pressure data measured by each pressure sensor 32 are compared to judge the bias condition of the bridge bearing 2.
Example 2
The structure of the bias detection device for bridge beam supports 2 in this embodiment is basically the same as that in embodiment 1, except that: as shown in fig. 5, in the embodiment, a fixing rod 36 is further disposed in the cylindrical cavity of the housing 31 of the bias detection mechanism 3, a central hole 331 which is opened downward and is disposed coaxially with the sliding rod 33 is formed in the inside of the sliding rod 33, an upper end of the fixing rod 36 is inserted into the central hole 331 and is slidably connected with the central hole 331, a lower end of the fixing rod 36 is fixedly connected to the pad 35, specifically, a welding manner may be adopted, the spring 34 is sleeved on the fixing rod 36, an upper end of the spring 34 is fixedly connected with a lower end of the sliding rod 33, and a lower end of the spring 34 is fixedly connected with the pad 35.
The using mode and the principle of the device are the same as those of the embodiment 1, the spring 34 is sleeved on the fixing rod 36, and therefore when the spring 34 is compressed, the spring 34 is not prone to shaking, the pressure transmission linearity is guaranteed, and the accuracy of a measuring result is further guaranteed.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. The bridge support bias voltage detection device is characterized by comprising an annular base, wherein the annular base is formed by splicing a plurality of detachably connected arc sections, a plurality of supports uniformly distributed along the circumferential direction of the annular base are arranged on the annular base, the supports are detachably connected to the annular base, and bias voltage detection mechanisms are arranged on the supports; the bias detection mechanism comprises a shell, a pressure sensor and a sliding rod, a cylindrical cavity is arranged inside the shell, the pressure sensor is located at the bottom of the cylindrical cavity, the lower end of the sliding rod extends into the cylindrical cavity and is in sliding connection with the cylindrical cavity, a spring is arranged between the sliding rod and the pressure sensor, the upper end of the spring is connected with the lower end of the sliding rod, and the lower end of the spring is connected with the pressure sensor.
2. The apparatus of claim 1, wherein: the support is a strip-shaped adjustable support, the axial direction of the support is parallel to the radial direction of the annular base, and one end of the support, which is close to the center of the annular base, is in contact with the bridge support; the annular base is provided with a plurality of threaded holes, and the support is installed on the annular base through bolts or screws.
3. The apparatus of claim 2, wherein: the one side that the support contacts with bridge beam supports is the arc.
4. The apparatus of claim 2, wherein: the support is provided with a waist-shaped hole along the length direction of the support, the length direction of the waist-shaped hole is the same as that of the support, and the edge of the waist-shaped hole is provided with a graduated scale.
5. The apparatus of claim 4, wherein: two waist-shaped holes which are arranged in parallel are formed in the support, and the bias voltage detection mechanism is located between the two waist-shaped holes.
6. The apparatus of claim 1, wherein: and a cushion block is arranged above the pressure sensor, and the lower end of the spring is fixedly connected to the cushion block.
7. The apparatus of claim 6, wherein: the fixing rod is arranged in the cylindrical cavity, a center hole with a downward opening and coaxial with the sliding rod is formed in the sliding rod, the upper end of the fixing rod is inserted into the center hole, the lower end of the fixing rod is fixedly connected with the cushion block, and the spring is sleeved on the fixing rod.
8. The apparatus of claim 1, wherein: the number of the bias detection mechanisms is at least three.
9. The apparatus of claim 1, wherein: the upper end of the sliding rod is provided with a supporting block.
CN201922165834.9U 2019-12-06 2019-12-06 Bridge beam supports bias voltage detection device Expired - Fee Related CN210893508U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922165834.9U CN210893508U (en) 2019-12-06 2019-12-06 Bridge beam supports bias voltage detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922165834.9U CN210893508U (en) 2019-12-06 2019-12-06 Bridge beam supports bias voltage detection device

Publications (1)

Publication Number Publication Date
CN210893508U true CN210893508U (en) 2020-06-30

Family

ID=71313410

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922165834.9U Expired - Fee Related CN210893508U (en) 2019-12-06 2019-12-06 Bridge beam supports bias voltage detection device

Country Status (1)

Country Link
CN (1) CN210893508U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Zhang Xuesong

Inventor after: Wu Yihui

Inventor after: Song Wenjie

Inventor after: Zeng Wanjuan

Inventor after: Shi Hong

Inventor after: Gui Yongwang

Inventor after: Xue Gang

Inventor after: Pu Chengzhong

Inventor after: Zhang Baolong

Inventor before: Zhang Xuesong

Inventor before: Song Wenjie

Inventor before: Zeng Wanjuan

Inventor before: Shi Hong

Inventor before: Gui Yongwang

Inventor before: Xue Gang

Inventor before: Pu Chengzhong

Inventor before: Zhang Baolong

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200630

Termination date: 20201206