CN218726121U

CN218726121U - Bridge railing strength test device

Info

Publication number: CN218726121U
Application number: CN202223257739.XU
Authority: CN
Inventors: 张馨媛; 刘芹
Original assignee: Shandong Transport Vocational College
Current assignee: Shandong Transport Vocational College
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-24
Anticipated expiration: 2032-12-06

Abstract

The utility model is suitable for the technical field of bridge railing detection, and provides a bridge railing strength testing device, which comprises a frame, wherein a fastener is arranged in the middle of one side of the frame; the tail part of the fastener extends to the inner groove of the frame and then is rotatably connected with the fixing plate; the middle part of one side, far away from the fastening piece, of the frame is fixedly connected with a bearing rod, a first telescopic rod is detachably arranged on the bearing rod, and a pressure gauge is arranged at the top end of the first telescopic rod; a second telescopic rod is arranged at a position with a certain distance from the frame, and a vacuum sucker is detachably arranged at the bottom of the second telescopic rod; a driving piece is arranged at the top of the second telescopic rod, and a push plate is detachably arranged on an output shaft of the driving piece; connecting rods are fixedly arranged on two sides of the bottom surface of the frame, and vacuum suckers are detachably arranged on the connecting rods; therefore, the utility model discloses can carry out pressure test to bridge railing top, atress when anthropomorphic dummy supports the bridge railing, the test is more true.

Description

Bridge railing strength test device

Technical Field

The utility model relates to a bridge railing detects technical field, especially relates to a bridge railing strength test device.

Background

The rapid development of the construction industry provides great convenience for people to go out, and in order to ensure the safety of people when passing through a bridge, bridge railings are arranged on two sides of the bridge for protection; particularly, whether the strength of the bridge and the strength of the bridge railing determine that people can safely pass through the bridge, collapse rarely occurs after the bridge is built, people supported on the bridge railing frequently fall into a river due to the fact that the bridge railing is not firm, and therefore it is very important to detect the safety and the firmness of the bridge railing.

In the prior art, when the bending strength of the bridge railing is detected, a special testing device is lacked, and the specific numerical value of thrust applied to the bridge railing when the bridge railing is bent to different degrees cannot be detected; for this case, a solution is proposed in application No. 201921753341.0; the bridge railing is clamped by two limiting cylinders, and the limiting cylinders with the upper sides capable of vertically moving are used for fixing the bridge railings at different heights; the electric push rod and the dial indicator which can be lifted are arranged on two sides of the bridge railing, and the height center of the bridge railing with different heights is subjected to pushing test by adjusting the lifting heights of the electric push rod and the dial indicator.

Although above-mentioned technical scheme can carry out the strength test to the high center department of the bridge railing of co-altitude not, but people are when supporting the bridge railing, and the top position of bridge railing is used as the support more to the angle of slope extrudees the bridge railing, and above-mentioned technical scheme only tests the co-altitude center department of co-altitude bridge railing and pushes pressure, can't test the pressurized condition at bridge railing top.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

To the above defect, an object of the utility model is to provide a bridge railing intensity testing arrangement, it can carry out pressure test to the top of bridge railing, and the human support bridge railing atress condition of simulation, the test result is more true, and supports to test a plurality of bridge railing combinations.

In order to achieve the purpose, the utility model provides a bridge railing strength testing device, which comprises a frame, wherein a fastener is arranged in the middle of one side of the frame; the tail part of the fastener extends to the inner groove of the frame and then is rotatably connected with the fixing plate; the middle part of one side, far away from the fastening piece, of the frame is fixedly connected with a bearing rod, a first telescopic rod is detachably arranged on the bearing rod, and a pressure gauge is arranged at the top end of the first telescopic rod; a second telescopic rod is arranged at a position with a certain distance from the frame, the second telescopic rod is positioned at the opposite side of the first telescopic rod, and a vacuum sucker is detachably arranged at the bottom of the second telescopic rod; a driving piece is arranged at the top of the second telescopic rod, a push plate is detachably arranged on an output shaft of the driving piece, and the driving piece drives the push plate to do telescopic motion; the angle between the output shaft of the driving piece and the pressure gauge is complementary; the bottom surface both sides of frame are fixed and are equipped with the connecting rod, the connecting rod can be dismantled and be equipped with vacuum chuck.

According to a bridge railing intensity test device, the head of fastener has the screw thread, and the afterbody does not have the screw thread.

According to a bridge railing intensity test device, one side of the minor axis of frame is equipped with the flange, and the opposite side is equipped with the recess, flange and recess adaptation, the flange passes through the connecting piece with the recess and is connected, the connecting piece is screw or double-screw bolt.

According to the device for testing the strength of the bridge railing, a second support frame is arranged at the top of a second telescopic rod, the second support frame is also provided with the fastener, blind holes matched with the tail of the fastener are symmetrically arranged on two sides of the driving piece, and the driving piece is installed in a groove of the second support frame by the tail of the fastener being tightly abutted against the bottom ends of the blind holes; the driving piece and the second support frame can be switched in the processes of rotary connection and fixed connection by adjusting whether the tail part of the fastener is in close contact with the bottom end of the blind hole or not; loosening the fasteners to prevent the tails of the fasteners from tightly abutting against the bottom ends of the blind holes, so that the driving part is not fixed by the fasteners at the two sides and can rotate; and tightening the fasteners to enable the tail parts of the fasteners to be tightly abutted against the bottom ends of the blind holes, and tightly clamping the driving piece by the fasteners on the two sides to form fixation.

According to the utility model discloses a bridge railing strength test device, the top of telescopic link one is equipped with first support frame, also be equipped with the fastener on the first support frame, the bilateral symmetry of manometer all is equipped with the blind hole of fastener afterbody adaptation, the afterbody of fastener closely abuts the bottom of blind hole and installs the manometer in the recess of first support frame; the pressure gauge and the first support frame can be switched in the processes of rotary connection and fixed connection by adjusting whether the tail part of the fastener is in close contact with the bottom end of the blind hole or not; loosening the fastening piece to ensure that the tail part of the fastening piece is not tightly abutted against the bottom end of the blind hole, and the pressure gauge is not fixed by the fastening pieces on the two sides and can rotate; and tightening the fasteners to enable the tail parts of the fasteners to be tightly abutted against the bottom ends of the blind holes, and tightly clamping the pressure gauge by the fasteners on two sides to form fixation.

According to a bridge railing intensity test device, the shape of push pedal is L shape, the driving piece is kept away from to the interior concave surface of push pedal.

According to a bridge railing intensity test device, the bilateral symmetry of fastener is equipped with two auxiliary fastening spare, auxiliary fastening spare is double-screw bolt or screw.

The utility model provides a bridge railing strength test device, its beneficial effect is:

1. after the bridge railing is placed in the inner groove of the frame, the fastener is screwed to push the fixing plate to move towards the bridge railing, and the fixing plate and the frame are matched to clamp the bridge railing so that the bridge railing is fixed in the inner groove of the frame; the head part of the fastener is provided with the threads, the tail part of the fastener is not provided with the threads, and the tail part of the fastener is rotationally connected with the fixed plate; the mode is used for fixing the bridge railing, the cost is low, the operation is simple and convenient, and the two sides of the fastening piece are symmetrically provided with the two auxiliary fastening pieces, so that the bridge railing is more firmly fixed.

2. Through the height adjustment of the first telescopic rod and the second telescopic rod and the angle adjustment of the driving piece and the pressure gauge, the output shaft of the driving piece and a sensitive element of the pressure gauge are in the same straight line, the output shaft of the driving piece drives the push plate to push the top of the bridge railing to deform the bridge railing, the bridge railing presses the sensitive element of the pressure gauge, and the pressure gauge displays the stress degree of the bridge railing on a display panel according to the compression condition of the sensitive element, so that the pressure bearing size of the bridge railing is obtained; and the output shaft of the driving piece and the sensitive element of the pressure gauge are on the same straight line, so that the pressure received by the pressure gauge is the maximum thrust of the push plate to the bridge railing, and the measuring result is more accurate.

3. The second telescopic rod and the frame are fixed through the vacuum chuck, the flexibility ratio is high, and the second telescopic rod and the frame can be moved for use according to different test places.

4. The short shaft of the frame is provided with a convex plate and a groove which are matched with each other, and the convex plate and the groove can be connected through a connecting piece; can make two sets of frame combinations together after the flange with two sets of frames is connected with the recess, can make up the frame according to the in service behavior, can test the longer bridge railing in groups of length.

Drawings

Fig. 1 is a schematic structural view of one side of the pressure gauge of the present invention;

FIG. 2 is a schematic view of a driving member of the present invention;

FIG. 3 is a schematic view of the position relationship structure of the push plate and the pressure gauge when the bridge railing of the present invention is tested;

FIG. 4 is a schematic view of the structure of the bridge railing of the present invention;

FIG. 5 is a schematic structural view of the two sets of frames of the present invention when they are connected;

FIG. 6 is a schematic view of a partial cross-sectional structure of the fastener of the present invention in connection with a fixed plate rotating bearing;

in the figure, 1-frame, 11-convex plate, 12-groove, 13-connecting piece, 14-fastening piece, 141-rotating bearing, 15-fixing plate, 16-connecting rod, 17-bearing rod, 18-auxiliary fastening piece, 2-bridge railing, 3-vacuum chuck, 4-driving piece, 41-push plate, 5-telescopic rod two, 6-first support frame, 7-pressure gauge, 8-telescopic rod one, 9-second support frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixed, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 4, the utility model provides a bridge railing strength testing device, which comprises a frame 1, wherein a fastener 14 is arranged in the middle of one side of the frame 1, and the tail of the fastener 14 extends to an inner groove of the frame 1 and then is rotatably connected with a fixing plate 15; by screwing the fastening piece 14, the fastening piece 14 pushes the fixing plate 15 to move towards the bridge railing 2, and the fixing plate 15 is matched with the frame 1 to clamp and fix the bridge railing 2 placed in the inner groove of the frame 1; the head part of the fastening piece 14 is provided with threads, the tail part of the fastening piece 14 is not provided with threads, and the tail part of the fastening piece 14 is rotatably connected with the fixing plate 15; when the fastener 14 is screwed, the fixing plate 15 cannot rotate along with the screwing of the fastener 14, and the fixing is simple and convenient; the middle part of one side, far away from the fastening piece 14, of the frame 1 is fixedly connected with a bearing rod 17, a first telescopic rod 8 is detachably arranged at the top of the bearing rod 17, and a pressure gauge 7 is arranged at the top end of the first telescopic rod 8; the pressure gauge 7 is the prior art, judges the pressure according to the contraction degree of the sensitive element, and displays the pressure on a display panel of the pressure gauge 7; a second telescopic rod 5 is installed at a position with a certain distance from the frame, the second telescopic rod 5 is located on the opposite side of the first telescopic rod 8, and a vacuum sucker 3 is detachably arranged at the bottom of the second telescopic rod 5; the vacuum chuck 3 is the prior art, the air in the vacuum chuck 3 is sucked through the air suction tube, so that negative air pressure is generated in the vacuum chuck 3, the telescopic rod two 5 is firmly sucked on the ground, the flexibility is high, the cost is low, and the vacuum chuck can be moved and used according to different test places; the top of the second telescopic rod 5 is provided with a driving piece 4, an output shaft of the driving piece 4 is detachably provided with a push plate 41, the driving piece 4 drives the push plate 41 to do telescopic motion, and the angle of the output shaft of the driving piece 4 is complementary with that of the pressure gauge 7; the output shaft of the driving piece 4 drives the push plate 41 to push the top of the bridge railing 2 to deform the bridge railing 2, the bridge railing 2 presses a sensitive element of the pressure gauge 7, the pressure gauge 7 displays the pressure bearing degree of the bridge railing 2 on a display panel according to the compression condition of the sensitive element, so that the pressure bearing degree of the bridge railing 2 is obtained, the push plate 41 and the pressure gauge 7 are in angle complementation, the output shaft of the driving piece 4 and the sensitive element of the pressure gauge 7 are on the same straight line, the pressure received by the pressure gauge 7 is the maximum thrust of the push plate 41 to the bridge railing 2, and the measurement result is more accurate; two sides of the bottom surface of the frame 1 are fixedly provided with connecting rods 16, and the connecting rods 16 are detachably provided with vacuum chucks 3; air in the vacuum chuck 3 is sucked through the suction tube, negative air pressure is generated in the vacuum chuck 3, the frame 1 is firmly sucked on the ground, flexibility is high, and cost is low.

Specifically, the fastener 14 of the present invention is a fastener with a thread on the top and a thread on the tail; if a full-thread fixing member such as a stud or a screw is used, when the stud or the screw is rotatably connected to the fixing plate 15, threads at the tail of the stud or the screw rub against the fixing plate 15, so that rotation is hindered, and frequent rubbing causes a reduction in the service life of the fixing plate 15 and the stud or the screw, which increases the cost.

Specifically, the vacuum chuck 3, the second expansion link 5 and the connecting rod 16 are connected by screwing in a thread manner.

Specifically, the push plate 41 is screwed to the output shaft of the driving member 4, and the receiving rod 17 is screwed to the first telescopic rod 8.

Referring to fig. 6, according to an embodiment of the present invention: the connection mode of the tail part of the fastening piece 14 and the fixed plate 15 is that the fastening piece is connected with a rotating bearing, and a rotating bearing 141 is arranged at the connection position of the tail part of the fastening piece 14 and the fixed plate 15; when the fastener 14 is screwed, since the tail of the fastener 14 is only connected with the inner shaft of the rotating bearing 141, the fastener 14 does not affect the fixing plate 15 connected with the outer shaft of the rotating bearing 141 when rotating; however, when the fastening member 14 moves towards the bridge rail 2, the fixing plate 15 is pushed by the fastening member 14 to move towards the bridge rail 2, and cooperates with the frame 1 to clamp and fix the bridge rail 2.

Preferably, the top of the second telescopic rod 5 of the present invention is provided with a second support frame 9, the second support frame 9 is also provided with a fastener 14, the two sides of the driving member 4 are symmetrically provided with blind holes adapted to the tail of the fastener 14, and the tail of the fastener 14 is tightly abutted against the bottom end of the blind hole to install the driving member 4 in the groove of the second support frame 9; through not hard up fastener 14 makes the afterbody of fastener 14 not closely butt with the bottom of blind hole, and driving piece 4 no longer receives the fixed of both sides fastener 14, adjusts the turned angle of driving piece 4 and makes its angle complementary with manometer 7, will again fastener 14 screws up and makes the afterbody of fastener 14 closely butt with the bottom of blind hole, makes driving piece 4 and manometer 7's angle form fixedly.

Preferably, the top end of the first telescopic rod 8 of the utility model is provided with a first support frame 6, the first support frame 6 is also provided with a fastener 14, the bilateral symmetry of the pressure gauge 7 is provided with blind holes matched with the tail parts of the fastener 14, and the tail parts of the fastener 14 are tightly abutted against the bottom ends of the blind holes to install the pressure gauge 7 in the groove of the first support frame 6; through not hard up fastener 14 makes the afterbody of fastener 14 not closely butt with the bottom of blind hole, and manometer 7 no longer receives the fixed of both sides fastener 14, adjusts the turned angle of manometer 7 and makes its angle complementary with driving piece 4, will again fastener 14 screws up and makes the afterbody of fastener 14 closely butt with the bottom of blind hole, makes manometer 7 and driving piece 4 angle form fixedly.

Referring to fig. 5, preferably, a protruding plate 11 is disposed on one side of the short shaft of the frame 1 of the present invention, and a groove 12 is disposed on the other side of the short shaft, and the protruding plate 11 is connected to the groove 12 through a connecting member 13; can make two sets of frames 1 to combine together after being connected the flange 11 and the recess 12 of two sets of frames 1, can make frame 1 make up according to the in service behavior, can test the longer bridge railing in groups of length.

Specifically, the connecting member 13 connecting the convex plate 11 and the concave groove 12 is a stud.

Referring to fig. 1 to 3, preferably, the shape of the push plate 41 of the present invention is L-shaped, and the concave surface of the push plate 41 contacts with the bridge rail 2, so that the stability of the push plate 41 pushing the bridge rail 2 can be increased, and the push plate 41 and the bridge rail 2 will not be rubbed and slid; and the push plate 41 is screwed with the output shaft of the driving part 4, the push plate can be screwed and replaced according to different use conditions, for example, the central part of the bridge railing 2 needs to be tested, after the straight push plate is screwed and replaced, the first telescopic rod 8 and the second telescopic rod 5 are adjusted to be consistent in height, then the angles of the driving part 4 and the pressure gauge 7 are adjusted to be complementary, and the pressed condition of the central part of the bridge railing 2 can be tested by starting the driving part 4.

Referring to fig. 2 and 5, preferably, two auxiliary fastening members 18 are symmetrically arranged on both sides of the fastening member 14 of the present invention, and the auxiliary fastening members 18 are screwed to make the tail ends of the auxiliary fastening members 18 closely contact with the fixing plate 15, so as to assist the fixing plate 15 to fix the bridge rail 2, increase the stability and make the fixing plate 15 have stronger fixity to the bridge rail 2; the beneficial fixing effect caused by the excessive auxiliary fastening pieces 18 is continuously reduced, and the manual frequent operation is required, so that the practicability is reduced.

The utility model discloses a concrete implementation process does:

after the relative position of the second telescopic rod 5 and the frame 1 is selected, air in the vacuum sucker 3 is sucked through the air suction tube, negative air pressure is generated in the vacuum sucker 3, and the second telescopic rod 5 and the frame 1 are firmly sucked on the ground; placing the bridge railing 2 into an inner groove of the frame 1, screwing the fastener 14 to drive the fixing plate 15 to move towards the bridge railing 2, matching the fixing plate 15 and the frame 1 to clamp the bridge railing 2 tightly so as to fix the bridge railing 2, and then screwing the auxiliary fasteners 18 on the two sides tightly; adjusting the positions of the driving piece 4 and the pressure gauge 7 according to the height of the bridge railing 2, loosening the fastening piece 14 of the second support frame 9 to adjust the driving piece 4 to a proper angle, enabling the inner concave surface of the push plate 41 to contact the top of the bridge railing 2, loosening the fastening piece 14 of the first support frame 6 to adjust the pressure gauge 7 to enable the pressure gauge 7 to be complementary with the push plate 41 in angle, and screwing the fastening pieces 14 of the second support frame 9 and the first support frame 6 after the angle is adjusted to enable the driving piece 4 and the pressure gauge 7 not to rotate; start driving piece 4, the output shaft of driving piece 4 drives push pedal 41 and pushes away to bridge railing 2 top and exert pressure to bridge railing 2, and bridge railing 2 pressurized takes place to deform and presses the sensing element who moves manometer 7, and pressure numerical value shows on manometer 7's display panel, borrows this testable bridge railing 2 and bears the size of pressure.

To sum up, the utility model provides a bridge railing strength testing device, after placing the bridge railing in the inner groove of the frame, the fastener pushes the fixed plate to move towards the bridge railing by screwing the fastener, the fixed plate and the frame are matched to clamp the bridge railing, so that the bridge railing is fixed in the inner groove of the frame; the head part of the fastener is provided with the threads, the tail part of the fastener is not provided with the threads, and the tail part of the fastener is rotationally connected with the fixed plate; the bridge railing is fixed by the method, the cost is low, the method is simple and convenient, and two auxiliary fastening pieces are symmetrically arranged on two sides of each fastening piece, so that the bridge railing is fixed more firmly; through the height adjustment of the first telescopic rod and the second telescopic rod and the angle adjustment of the driving piece and the pressure gauge, the output shaft of the driving piece and a sensitive element of the pressure gauge are in the same straight line, the output shaft of the driving piece drives the push plate to push the top of the bridge railing to deform the bridge railing, the bridge railing presses the sensitive element of the pressure gauge, and the pressure gauge displays the stress degree of the bridge railing on a display panel according to the compression condition of the sensitive element, so that the pressure bearing size of the bridge railing is obtained; the output shaft of the driving piece and the sensitive element of the pressure gauge are on the same straight line, so that the pressure received by the pressure gauge is the maximum thrust of the push plate to the bridge railing, and the measurement result is more accurate; the second telescopic rod and the frame are fixed through the vacuum chuck, so that the flexibility is high, and the second telescopic rod and the frame can be moved for use according to different test places; the short shaft of the frame is provided with a convex plate and a groove which are matched with each other, and the convex plate and the groove can be connected through a connecting piece; can make two sets of frame combinations together after the flange with two sets of frames and groove connection, can make the frame according to the in service behavior, can test the longer bridge railing in groups of length.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. The bridge railing strength testing device is characterized by comprising a frame, wherein a fastening piece is arranged in the middle of one side of the frame; the tail part of the fastener extends to the inner groove of the frame and then is rotatably connected with the fixing plate; the middle part of one side, far away from the fastening piece, of the frame is fixedly connected with a bearing rod, a first telescopic rod is detachably arranged on the bearing rod, and a pressure gauge is arranged at the top end of the first telescopic rod; a second telescopic rod is arranged at a position with a certain distance from the frame, and a vacuum sucker is detachably arranged at the bottom of the second telescopic rod; a driving piece is arranged at the top of the second telescopic rod, and a push plate is detachably arranged on an output shaft of the driving piece; the angle between the output shaft of the driving piece and the pressure gauge is complementary; the bottom surface both sides of frame are fixed and are equipped with the connecting rod, the connecting rod can be dismantled and be equipped with vacuum chuck.

2. The bridge railing strength testing device of claim 1, wherein the head of the fastener is provided with threads and the tail is not provided with threads.

3. The bridge railing strength testing device according to claim 1, wherein one side of the short shaft of the frame is provided with a convex plate, the other side of the short shaft of the frame is provided with a groove, the convex plate is matched with the groove, the convex plate is connected with the groove through a connecting piece, and the connecting piece is a screw or a stud.

4. The bridge railing strength testing device according to claim 2, wherein a second supporting frame is arranged at the top of the second telescopic rod, the second supporting frame is also provided with the fasteners, blind holes matched with the tails of the fasteners are symmetrically formed in two sides of the driving piece, and the tails of the fasteners are tightly abutted against the bottom ends of the blind holes so that the driving piece is installed in a groove of the second supporting frame.

5. The strength testing device for the bridge railing according to claim 2, wherein a first support frame is arranged at the top end of the first telescopic rod, the first support frame is also provided with the fastening piece, blind holes matched with the tail of the fastening piece are symmetrically arranged on two sides of the pressure gauge, and the tail of the fastening piece is tightly abutted against the bottom end of the blind holes so as to install the pressure gauge in the groove of the first support frame.

6. The bridge railing strength testing device of claim 1, wherein the push plate is L-shaped, and the concave surface of the push plate is far away from the driving member.

7. The bridge railing strength testing device of claim 1, wherein two auxiliary fasteners are symmetrically arranged on two sides of the fastener, and the auxiliary fasteners are studs or screws.