CN111999169A - Wooden bridge safety detection device - Google Patents

Abstract

The invention discloses a safety detection device for a wooden bridge, which comprises bridge handrails, wherein the bridge handrails are fixedly connected to two ends of a bridge floor, the two bridge handrails are bilaterally symmetrical by taking the center line of the bridge floor as the center, the upper end of each bridge handrail is provided with three clamping driving mechanisms, each clamping driving mechanism comprises two clamping wheels, the two clamping wheels are bilaterally symmetrical by taking the center line of the bridge handrail as the center, and the clamping wheels are fixedly connected to a clamping shaft. The safety of the bridge in normal use is ensured, or the dangerous bridge is forbidden to pass.

Description

Wooden bridge safety detection device

The invention relates to the field of bridge engineering, in particular to a safety detection device for a wooden bridge.

Background

With the continuous improvement of the comprehensive strength of China, the scientific and technological level and the construction level of China are continuously improved, the bridge construction level of China is also arranged at the first position in the world, the bridge has the first world and the longest world, although the average quality of the bridge of China is very high, a plurality of old bridges which are overhauled for a long time still exist, particularly old wooden bridges, the bearing capacity of the old bridges cannot be accurately judged, and if people walk on the wooden bridges which are overhauled for a long time blindly or pedestrians are allowed to pass through, the old bridges are dangerous behaviors.

Disclosure of Invention

The invention aims to provide a safety detection device for a wooden bridge, which overcomes the problem that the safety of the wooden bridge cannot be detected.

The invention is realized by the following technical scheme.

The invention relates to a safety detection device for a wooden bridge, which comprises bridge handrails, wherein the bridge handrails are fixedly connected to two ends of a bridge floor, the two bridge handrails are bilaterally symmetrical by taking the center line of the bridge floor as the center, the upper end of each bridge handrail is provided with three clamping driving mechanisms, each clamping driving mechanism comprises two clamping wheels, the two clamping wheels are bilaterally symmetrical by taking the center line of the bridge handrail as the center, the clamping wheels are fixedly connected to clamping shafts, the clamping shafts are rotatably connected with the inner walls on the upper side and the lower side of each clamping bin, the clamping bins are arranged in the bridge floor, the two bridge floors are rotatably connected with driving shafts, the driving shafts are provided with threads in contact with the bridge floor, the driving shafts are rotatably connected with supporting rods, the supporting rods are provided with moving bins with backward openings, second electromagnets are arranged in the moving bins, and moving springs are fixedly connected to the rear end faces of the, the rear end of the moving spring is fixedly connected with an iron touch rod, the iron touch rod is connected with the inner wall of the moving bin in a sliding manner, the iron touch rod is connected with a touch shaft in a rotating manner, the touch shaft is fixedly connected with the iron touch rod, the support rod is connected with a connecting block in a rotating manner, the support block is fixedly connected with a support block, the support block is connected with the moving bin in a sliding manner, the moving bin is arranged in the connecting block, a first electromagnet is also arranged in the moving bin and is fixedly connected with the inner wall of the moving bin, a movable spring is fixedly connected on the end face of the first electromagnet far away from the central line of the bridge floor, an iron moving block is fixedly connected with the other end of the movable spring, the lower end of the iron moving block is connected with a roller, a support spring is fixedly connected with the upper end face of the support block, and the upper end of, the upper end surface of the bridge handrail is connected with an ornament in a rolling way; the lower end surface of the connecting plate is contacted with a test box, a test bin is arranged in the test box, a pressure test mechanism is arranged in the test bin, the pressure test mechanism comprises a hydraulic press, the hydraulic press is fixedly connected with the inner wall of the upper side of the test bin, the lower end surface of the first electromagnet is connected with a hydraulic rod in a sliding manner, the lower end of the hydraulic rod is fixedly connected with a pressure rod, a rolling wheel lifting box is connected with the upper rail of the stabilizer bar, a rolling wheel is rotatably connected with the connecting rod, the rolling wheel is rotatably connected with the bridge floor, a second rack is fixedly connected with the right end surface of the stabilizer bar, the second rack is meshed with a transfer wheel, the transfer wheel is fixedly connected with a middle rotating shaft, the middle rotating shaft is rotatably connected with the inner wall of the rear side of the test bin, the middle rotating wheel is meshed with the first rack, and the first rack is fixedly connected, the lifting plate is connected with the inner wall of the lifting bin in a sliding way, the lifting bin is arranged in a lifting box, the lifting box is fixedly connected on the inner wall of the lower side of the testing bin, a lifting spring is arranged in the lifting bin, the lower end of the lifting spring is fixedly connected on the inner wall of the lower side of the lifting bin, the upper end of the lifting spring is fixedly connected to the lifting plate, an iron piston plate is arranged above the lifting plate, the iron piston plate is connected with the inner wall of the piston bin in a sliding way, the piston bin is arranged in the fixed plate, the fixed plate is fixedly connected with the inner wall of the right side of the test bin, a third electromagnet is also arranged in the piston bin and is fixedly connected on the inner wall of the upper side of the piston bin, and a piston spring is fixedly connected to the lower end face of the third electromagnet, and the lower end of the piston spring is fixedly connected to the iron piston plate.

Preferably, the clamping driving mechanism further comprises a first motor, the first motor is fixedly connected to one end, close to the center line of the bridge deck, of the driving shaft, the second motor is fixedly connected to the other end of the driving shaft, a third motor is fixedly connected to the inside of the supporting rod, a driving rotating shaft is rotatably connected to the third motor, the driving rotating shaft is fixedly connected to the driving wheel, the driving wheel is connected with the end face of the bridge handrail in a rolling mode, and the connecting block is connected with the connecting plate in a sliding mode.

Preferably, pressure test mechanism still includes the stabilizer bar, stabilizer bar fixed connection be in on the downside inner wall of test bin, the upper end wall of test box rotates and is connected with two axis of rotation, two the axis of rotation uses the central line of test bin is central bilateral symmetry, the axis of rotation with the place of test box upper end wall contact is equipped with the screw thread, the axis of rotation equally with the connecting plate rotates and connects, the upper end fixedly connected with test box of axis of rotation, the lower extreme fixedly connected with of axis of rotation restricts the piece, fixedly connected with warning light on the up end of connecting plate.

The invention has the beneficial effects that: the invention mainly has the advantages that equipment is used for wooden bridges which are repaired for a long time, when people cannot accurately judge the bearing capacity of some wooden bridges, the equipment can be used for carrying out a first round of test on the wooden bridges instead of the traditional personal dangerous behaviors, the equipment can apply pressure similar to that of human beings to test whether the safety of the wooden bridges is even far greater than that of the human beings to test the limit of the wooden bridges, the safety of the wooden bridges in normal use is ensured, or the dangerous bridges are forbidden to pass.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of the present invention taken along the line A-A in FIG. 1;

FIG. 3 is a schematic view of the embodiment of the present invention in the direction B-B in FIG. 1;

fig. 4 is an enlarged schematic view at C in fig. 1 according to the embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The safety detection device for wooden bridges, which is described in conjunction with fig. 1-4, includes two bridge handrails 11, the bridge handrails 11 are fixedly connected to two ends of a bridge deck 12, the two bridge handrails 11 are bilaterally symmetrical about a center line of the bridge deck 12, three clamping driving mechanisms 101 are disposed at upper ends of each bridge handrail 11, each clamping driving mechanism 101 includes two clamping wheels 15, the two clamping wheels 15 are bilaterally symmetrical about the center line of the bridge handrail 11, the clamping wheels 15 are fixedly connected to a clamping shaft 14, the clamping shaft 14 is rotatably connected to upper and lower inner walls of a clamping bin 13, the clamping bin 13 is disposed in the bridge deck 12, the two bridge decks 12 are rotatably connected to a driving shaft 17, a screw thread is disposed at a position where the driving shaft 17 contacts the bridge deck 12, and the driving shaft 17 is rotatably connected to a support rod 19, the movable bridge deck is characterized in that a movable bin 59 with a backward opening is arranged on the supporting rod 19, a second electromagnet 61 is arranged in the movable bin 59, a movable spring 60 is fixedly connected to the rear end face of the second electromagnet 61, an iron touch rod 58 is fixedly connected to the rear end of the movable spring 60, the iron touch rod 58 is connected to the inner wall of the movable bin 59 in a sliding manner, a touch shaft 56 is connected to the iron touch rod 58 in a rotating manner, an iron touch rod 57 is fixedly connected to the touch shaft 56, the supporting rod 19 is connected to the connecting block 23 in a rotating manner, a supporting block 29 is fixedly connected to the supporting rod 19, the supporting block 29 is connected to the movable bin 24 in a sliding manner, the movable bin 24 is arranged in the connecting block 23, a first electromagnet 25 is further arranged in the movable bin 24, the first electromagnet 25 is fixedly connected to the inner wall of the movable bin 24, and the first electromagnet 25 is far away from a movable spring 26 fixedly, the other end of the movable spring 26 is fixedly connected with an iron movable block 27, the lower end of the iron movable block 27 is connected with a roller, the upper end face of the supporting block 29 is fixedly connected with a supporting spring 28, the upper end of the supporting spring 28 is fixedly connected to the inner wall of the upper side of the movable cabin 24, the upper end face of the bridge handrail 11 is connected with an ornament 30 in a rolling manner, two bridge decks 12 face the supporting rod 19 to adapt to the width of the bridge handrail 11 and clamp the bridge handrail 11, when the iron touch rod 57 senses the ornament 30, the supporting rod 19 rotates to pass over the ornament 30, and the other two supporting rods 19 play a supporting role; a test box 34 is contacted on the lower end surface of the connecting plate 31, a test chamber 38 is arranged in the test box 34, a pressure test mechanism 102 is arranged in the test chamber 38, the pressure test mechanism 102 comprises a hydraulic press 35, the hydraulic press 35 is fixedly connected to the inner wall of the upper side of the test chamber 38, the lower end surface of the first electromagnet 25 is slidably connected with a hydraulic rod 39, the lower end of the hydraulic rod 39 is fixedly connected with a pressure rod 40, a rolling wheel 55 lifting box 47 is connected on the upper track of the stabilizer bar 41, a rolling wheel 55 is rotatably connected on the connecting rod 54, the rolling wheel 55 is rotatably connected with the bridge deck 12, a second rack 53 is fixedly connected on the right end surface of the stabilizer bar 41, the second rack 53 is meshed with a transfer wheel 52, the transfer wheel 52 is fixedly connected on the transfer shaft 51, and the transfer shaft 51 is rotatably connected with the inner wall of the rear side of the test chamber 38, well runner 52 and the meshing of first rack 50, first rack 50 fixed connection is on the left side terminal surface of lifter plate 61, lifter plate 61 and 48 inner wall sliding connection in lift storehouse, lift storehouse 48 is established in lift case 47, lift case 47 fixed connection is in on the downside inner wall of test chamber 38, still be equipped with lifting spring 49 in the lift storehouse 48, lifting spring 49's lower extreme fixed connection is in on the downside inner wall of lift storehouse 48, lifting spring 49's upper end fixed connection is in on the lifter plate 61, be equipped with iron piston plate 46 above the lifter plate 61, iron piston plate 46 and piston chamber 43 inner wall sliding connection, piston chamber 43 is established in fixed plate 42, fixed plate 42 with the right side inner wall fixed connection in test chamber 38, still be equipped with third electro-magnet 44 in piston chamber 43, third electro-magnet 44 fixed connection is in on the upside inner wall in piston chamber 43, the lower end face of the third electromagnet 44 is fixedly connected with a piston spring 45, the lower end of the piston spring 45 is fixedly connected to an iron piston plate 46 and the iron piston plate 46, the hydraulic machine 35 works to push the rolling wheel 55 to apply pressure to the wooden bridge floor, so that the strength of the bridge is detected, if the equipment does not respond, the bridge is safe, and if the rolling wheel 55 sinks, the quality of the wooden bridge is unqualified, the bridge cannot be continuously used.

Advantageously, the clamping driving mechanism 101 further comprises a first motor 16, the first motor 16 is fixedly connected to one end of the driving shaft 17 close to the center line of the bridge deck 12, the other end of the driving shaft 17 is fixedly connected with a second motor 18, a third motor 20 is fixedly connected to the inside of the supporting rod 19, a driving rotating shaft 21 is rotatably connected to the third motor 20, the driving rotating shaft 21 is fixedly connected to the driving wheel 22, the driving wheel 22 is in rolling connection with the end surface of the bridge handrail 11, and the connecting block 23 is slidably connected to the connecting plate 31.

Beneficially, the pressure testing mechanism 102 further includes a stabilizer bar 41, the stabilizer bar 41 is fixedly connected to the lower inner wall of the testing chamber 38, the upper end wall of the testing box 34 is rotatably connected with two rotating shafts 36, the two rotating shafts 36 are bilaterally symmetrical around the center line of the testing chamber 38, a screw thread is arranged at a position where the rotating shaft 36 contacts with the upper end wall of the testing box 34, the rotating shaft 36 is also rotatably connected with the connecting plate 31, the upper end of the rotating shaft 36 is fixedly connected with the testing box 33, the lower end of the rotating shaft 36 is fixedly connected with the limiting block 37, and the upper end surface of the connecting plate 31 is fixedly connected with the warning light 32.

In the initial state, the lift spring 49 is in a compressed state, the piston spring 45 is in a stretched state, and the movable spring 26, the support spring 28, and the movable spring 60 are in a normal state.

Application method

When an operator needs to detect a wooden bridge with uncertain quality, two connecting blocks 23 are moved to adapt to the width of the bridge, then bridge decks 12 on two sides are erected on bridge handrails 11 on two sides of the wooden bridge, a second motor 18 starts to work, a driving shaft 17 rotates to enable the two bridge decks 12 to get close to each other, two clamping wheels 15 get close to each other until the second motor 18 stops working after clamping the bridge handrails 11, at this time, a third motor 20 starts to work to drive a driving rotating shaft 21 to start to rotate, the driving rotating shaft 21 rotates to enable a driving wheel 22 to rotate and start to roll on the bridge handrails 11 to drive the whole equipment to advance, when an iron touch rod 57 touches ornaments 30 on the bridge handrails 11 in a strong process, the iron touch rod 57 moves forwards to slide relative to a moving bin 59 after the pressure of the ornaments 30 is received, a moving spring 60 is compressed, and after a second electromagnet 61 senses the pressure, the first motor 16 corresponding to the iron touch rod 57 touching the ornament 30 starts to work to separate the two bridge decks 12, the clamping of the bridge handrail 11 is lost, the first electromagnet 25 starts to work to give an attractive force to the iron movable block 27, the iron movable block 27 starts to move towards the first electromagnet 25, the movable spring 26 is compressed, the supporting block 29 loses the supporting force of the iron movable block 27, at this time, under the action of the ornament 30, the supporting rod 19 starts to rotate, the supporting block 29 is pushed into the movable cabin 24, the supporting spring 28 is compressed, when the supporting rod 19 rotates, the rest of the supporting rods 19 play a role of supporting equipment advancing, after the second electromagnet 61 does not sense the pressure, the second motor 18 starts to work, and the two bridge decks 12 approach each other to clamp the bridge handrail 11 and continue to advance.

Before the equipment advances, an operator rotates the test box 33 to rotate the rotating shaft 36, so that the test box 34 starts to move downwards and is separated from the connecting plate 31 until the rolling wheels 55 are contacted with the surface of the bridge deck 12, the hydraulic machine 35 starts to apply pressure set by an operator after the equipment advances, the hydraulic rod 39 transmits the pressure of the hydraulic machine 35 downwards, the hydraulic rod 39 gives the pressure to the pressure rod 40, the pressure rod 40 transmits the pressure to the rolling wheels 55, the rolling wheels 55 transmit the pressure to the bridge deck 12, if the quality of the wooden bridge reaches the operator expectation, the rolling wheels 55 do not push the bridge deck 12, and the bridge deck 12 bears the pressure and can be put into use.

If the rolling wheel 55 pushes and destroys the bridge deck 12, the quality of the bridge deck 12 does not reach the standard, then the rolling wheel 55 descends, the hydraulic rod 39 descends until being supported by the stabilizing rod 41 and does not descend any more, the pressure rod 40 moves downwards, the second rack 53 moves downwards to drive the middle rotating wheel 52 to rotate, the rotation of the middle rotating wheel 52 enables the first rack 50 to move upwards, so that the lifting plate 61 moves upwards until pushing the iron piston plate 46 to move upwards, after the third electromagnet 44 senses pressure, the warning lamp 32 is powered on to work to remind an operator that the bridge detection does not reach the standard, the third motor 20 stops working, the equipment does not continue to detect any more, and the work is completed.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (3)

1. The utility model provides a wooden bridge safety inspection device, includes the bridge handrail, its characterized in that: the bridge handrail is fixedly connected to two ends of a bridge deck, the two bridge handrails are bilaterally symmetrical by taking a center line of the bridge deck as a center, three clamping driving mechanisms are arranged at the upper ends of the bridge handrails, each clamping driving mechanism comprises two clamping wheels, the two clamping wheels are bilaterally symmetrical by taking the center line of the bridge handrail as the center, the clamping wheels are fixedly connected to clamping shafts, the clamping shafts are rotatably connected with the upper inner wall and the lower inner wall of each clamping bin, the clamping bins are arranged in the bridge deck, the two bridge decks are rotatably connected with a driving shaft, threads are arranged at positions where the driving shaft is contacted with the bridge decks, the driving shaft is rotatably connected with supporting rods, moving bins with backward openings are arranged on the supporting rods, second electromagnets are arranged in the moving bins, moving springs are fixedly connected to the rear end faces of the second electromagnets, and iron touch rods are fixedly connected to the rear ends of the, the iron touch rod is connected with the inner wall of the movable bin in a sliding manner, the iron touch rod is connected with a touch shaft in a rotating manner, the touch shaft is fixedly connected with the iron touch rod, the supporting rod is connected with a connecting block in a rotating manner, the supporting block is fixedly connected with the supporting block, the supporting block is connected with the movable bin in a sliding manner, the movable bin is arranged in the connecting block, a first electromagnet is further arranged in the movable bin and fixedly connected with the inner wall of the movable bin, a movable spring is fixedly connected onto the end face, away from the central line of the bridge floor, of the first electromagnet, the other end of the movable spring is fixedly connected with an iron movable block, the lower end of the iron movable block is connected with a roller, a supporting spring is fixedly connected onto the upper end face of the supporting block, and the upper end of the supporting spring is fixedly, the upper end surface of the bridge handrail is connected with an ornament in a rolling way; the lower end surface of the connecting plate is contacted with a test box, a test bin is arranged in the test box, a pressure test mechanism is arranged in the test bin, the pressure test mechanism comprises a hydraulic press, the hydraulic press is fixedly connected with the inner wall of the upper side of the test bin, the lower end surface of the first electromagnet is connected with a hydraulic rod in a sliding manner, the lower end of the hydraulic rod is fixedly connected with a pressure rod, a rolling wheel lifting box is connected with the upper rail of the stabilizer bar, a rolling wheel is rotatably connected with the connecting rod, the rolling wheel is rotatably connected with the bridge floor, a second rack is fixedly connected with the right end surface of the stabilizer bar, the second rack is meshed with a transfer wheel, the transfer wheel is fixedly connected with a middle rotating shaft, the middle rotating shaft is rotatably connected with the inner wall of the rear side of the test bin, the middle rotating wheel is meshed with the first rack, and the first rack is fixedly connected, the lifting plate is connected with the inner wall of the lifting bin in a sliding way, the lifting bin is arranged in a lifting box, the lifting box is fixedly connected on the inner wall of the lower side of the testing bin, a lifting spring is arranged in the lifting bin, the lower end of the lifting spring is fixedly connected on the inner wall of the lower side of the lifting bin, the upper end of the lifting spring is fixedly connected to the lifting plate, an iron piston plate is arranged above the lifting plate, the iron piston plate is connected with the inner wall of the piston bin in a sliding way, the piston bin is arranged in the fixed plate, the fixed plate is fixedly connected with the inner wall of the right side of the test bin, a third electromagnet is also arranged in the piston bin and is fixedly connected on the inner wall of the upper side of the piston bin, and a piston spring is fixedly connected to the lower end face of the third electromagnet, and the lower end of the piston spring is fixedly connected to the iron piston plate.

2. The wooden bridge safety detection device of claim 1, characterized in that: the clamping driving mechanism further comprises a first motor, the first motor is fixedly connected to the driving shaft close to one end of the middle line of the bridge floor, the other end of the driving shaft is fixedly connected with a second motor, a third motor is fixedly connected to the inside of the supporting rod, a driving rotating shaft is rotatably connected to the third motor, the driving rotating shaft is fixedly connected with the driving wheel, the driving wheel is connected with the end face of the bridge handrail in a rolling mode, and the connecting block is connected with the connecting plate in a sliding mode.

3. The wooden bridge safety detection device of claim 1, characterized in that: pressure test mechanism still includes the stabilizer bar, stabilizer bar fixed connection be in on the downside inner wall of test bin, the upper end wall of test box rotates and is connected with two axis of rotation, two the axis of rotation uses the central line of test bin is central bilateral symmetry, the axis of rotation with the place of test box upper end wall contact is equipped with the screw thread, the axis of rotation equally with the connecting plate rotates and connects, the upper end fixedly connected with test box of axis of rotation, the lower extreme fixedly connected with of axis of rotation limits the piece, fixedly connected with warning light on the up end of connecting plate.

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