CN110766910A - Sleeve type scaffold engineering safety early warning device applying double measurement means - Google Patents
Sleeve type scaffold engineering safety early warning device applying double measurement means Download PDFInfo
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- G08B21/02—Alarms for ensuring the safety of persons
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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Abstract
A telescopic scaffold engineering safety early warning device applying double measuring means, a transmission rod group is welded at the lower end of a scaffold connecting piece, an upper annular sleeve and a lower annular sleeve are wrapped outside the transmission rod group, a connecting soft sleeve connects the upper annular sleeve and the lower annular sleeve, a string type resistance wire group is arranged on a resistance wire mounting plate and placed in the upper annular sleeve and the lower annular sleeve, and a piezoelectric crystal is arranged on a piezoelectric crystal mounting plate and placed in the lower annular sleeve; open string formula resistance wire group and piezocrystal pass through the wire and link to each other with the signal input part of signal processing module, and the signal processing module is handled the back with the signal of telecommunication, gives the acousto-optic warning ware through signal output part transmission, and the acousto-optic warning ware is reported to the police when the alarm condition appears, and the protection bolt makes the device avoid the harm in the transportation installation.
Description
Technical Field
The invention belongs to the field of scaffold engineering, and particularly relates to a sleeve type scaffold engineering safety early warning device applying double measurement means, which is applied to scaffold compression straight rod yield safety early warning.
Background
The construction safety is the heaviest in the construction production, and with the appearance of more and more high-rise buildings, the usage amount of scaffolds is larger and larger, and the safety problem is more and more prominent. In 2013, 21 months 5, 6 dead people due to collapse accidents of the three-bridge bracket of the four-river Tuo river; in 2011, 1 dead person is caused by the jacking accident of the viaduct of the combined fertilization and chemical transformation road in 7-month and 24-day; 7 dead people due to the collapse accident of the Kunming airport bracket in 1 month and 12 days 2010; and 7 dead people are caused by the accident of the moving formwork of the temperature-rise railway in 27 days 6 months in 2008. These accidents seriously jeopardize people's life and property safety and engineering construction progress, so the research on scaffold safety early warning in the building construction process is not slow.
The main reason that the scaffold collapses is support unstability, joint strength is not enough, construction enterprise is at the scaffold, before the construction of template engineering, the scaffold is not carried out, template design and rigidity check out, only lean on experience to carry out the braced system and arrange, the scaffold that has enough to meet the need for a long time to use lacks inspection and maintenance, the steel pipe of scaffold belongs to construction turnover material, its life receives the corrosion, influence such as wearing and tearing is great, lead to scaffold steel pipe strength can not obtain the assurance, the easy unstability yield that takes place, the member is after the unstability, little pressure increase will cause the crooked show increase of member.
The string-type resistance wires can cause the resistance change of the string-type resistance wires when being pulled, and a Wheatstone bridge consisting of the string-type resistance wires can destroy the balance of the bridge when the resistance changes, so that the string-type resistance wires can be applied to the deformation monitoring of the bent and pulled part of the scaffold steel pipe; the piezoelectric crystal can produce the piezoelectric effect when the pressurized, and its crystal surface can produce the electric charge that the size is equal and the sign is opposite, restores to the uncharged state again after external force removes, and is sensitive to the pressure reaction, can be used in the deformation monitoring of scaffold steel pipe bending pressurized position.
At present, the domestic scaffold safety early warning device mainly comprises a scaffold safety early warning system such as an authorized publication number CN106840265A, and a scaffold settlement observation and settlement measurement safety early warning system such as an authorized publication number CN106705933A, and the like, wherein the invention mainly utilizes laser, infrared sensors and the like to monitor the stress deformation and the basic settlement condition of the scaffold, the installation and debugging process is complex, the influence of environmental conditions is large, such as dust, temperature and the like, and the use conditions are limited, but at present, the domestic scaffold safety early warning device is convenient to install and disassemble, directly monitors the deformation of scaffold steel pipes, and the development of devices with strong anti-interference capability is not many, so that the telescopic scaffold engineering safety early warning device applying double measurement means is necessary.
Disclosure of Invention
Due to the defects in the prior art, the technical problem to be solved by the invention is to provide the sleeve type scaffold engineering safety early warning device applying the double measurement means.
The technical scheme adopted by the invention for solving the technical problems is as follows: a telescopic scaffold engineering safety early warning device applying double measurement means comprises a scaffold connecting piece 1, a force transmission rod group 2, an upper annular sleeve 3, a lower annular sleeve 4, a connecting soft sleeve 5, a string type resistance wire group 6, a resistance wire mounting plate 7, a piezoelectric crystal 8, a piezoelectric crystal mounting plate 9, a signal processing module 10 and an acousto-optic alarm 11; the force transmission rod group 2 is welded at the lower end of the scaffold connecting piece 1, the upper annular sleeve 3 and the lower annular sleeve 4 are wrapped outside the force transmission rod group 2, the upper annular sleeve 3 and the lower annular sleeve 4 are connected by the connecting soft sleeve 5, the string-type resistance wire group 6 is installed on the resistance wire installation plate 7 and placed in the upper annular sleeve 3 and the lower annular sleeve 4, and the piezoelectric crystal 8 is installed on the piezoelectric crystal installation plate 9 and placed in the lower annular sleeve 4; the string-type resistance wire group 6 and the piezoelectric crystal 8 are connected with a signal input end of the signal processing module 10 through a lead 21, after electric signals are processed by the signal processing module 10, the electric signals are transmitted to the acousto-optic alarm 11 through a signal output end, the acousto-optic alarm 11 gives an alarm when an alarm condition occurs, and the protective bolt 18 prevents the device from being damaged in the transportation and installation processes.
The invention also has the following additional technical features:
the technical scheme of the invention is further specifically optimized as follows: the scaffold link 1 comprises a scaffold link a1a and a scaffold link b1 b; scaffold connecting piece a1a and scaffold connecting piece b1b are the semicircle ring-shaped of adaptation scaffold steel pipe appearance, and its two ports all set up the overhanging bolt mounting panel 1c of rectangle, and scaffold connecting piece a1a, scaffold connecting piece b1b make up through the overhanging bolt mounting panel 1c of rectangle through two construction bolt 1d, and scaffold connecting piece a1a and scaffold connecting piece b1b lower surface and transfer force pole group 2 welding.
The technical scheme of the invention is further specifically optimized as follows: the upper ring sleeve 3 includes an upper half ring sleeve a3a and an upper half ring sleeve b3 b; the main bodies of the upper half ring sleeve a3a and the upper half ring sleeve b3b are two half ring-shaped steel sheets; the left end and the right end of the upper half ring sleeve a3a and the upper half ring sleeve b3b are closed and are provided with a sleeve extending bolt opening a12a and a sleeve extending bolt opening b12 b; the upper ends of the upper half ring sleeve a3a and the upper half ring sleeve b3b are closed, a force transmission rod through hole 13 is formed in the upper top surface, the position of the force transmission rod through hole 13 is matched with the force transmission rod group 2, and the shape of the force transmission rod through hole is an oval with a circular long axis; the dowel bar through hole 13 and the dowel bar group 2 are sealed through a sealing rubber sleeve 14; the lower ends of the upper half ring sleeve a3a and the upper half ring sleeve b3b are open and are glued with the connecting soft sleeve 4; the upper ring half sleeve a3a and the upper ring half sleeve b3b are combined by 4 mounting bolts 15 through sleeve extension bolt openings a12a and sleeve extension bolt openings b12 b.
The technical scheme of the invention is further specifically optimized as follows: the lower annular sleeve 4 includes a lower half-ring sleeve a4a and a lower half-ring sleeve b4 b; the main bodies of the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are two semi-annular steel sheets, the two ends of the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are closed and are provided with a sleeve extending bolt opening a17a and a sleeve extending bolt opening b17b, and the lower ends of the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are closed; the upper ends of the lower semi-ring sleeve a4a and the lower semi-ring sleeve b4b are open and are glued with the connecting soft sleeve 4; the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are combined by 4 mounting bolts 16 through a sleeve extending bolt opening a17a and a sleeve extending bolt opening b17b, and the lower end of the outer half-ring steel sheet of the lower half-ring sleeve a4a is opened with a round opening to mount the audible and visual alarm 11
The technical scheme of the invention is further specifically optimized as follows: the connecting soft sleeve 5 comprises a connecting soft sleeve a5a and a connecting soft sleeve b5 b; the upper end of the connecting soft sleeve a5a is glued on the two semi-annular steel sheets of the upper semi-annular sleeve a3a by two PVC soft films, and forms an intercommunicated whole with the upper semi-annular sleeve a3 a; the lower end is formed by adhering two PVC soft films on two semi-annular steel sheets of the lower semi-annular sleeve a4a, the PVC soft films and the lower semi-annular sleeve a4a form an intercommunicated whole, and the left end and the right end are closed.
The technical scheme of the invention is further specifically optimized as follows: the string-stretching resistance wire group 6 consists of 8 string-stretching resistance wires which are arranged in a centrosymmetric way at an interval of about 45 degrees, 4 wires are arranged on each side, the upper ends of the string-stretching resistance wire group 6 are arranged on a resistance wire mounting plate a7a through an anchorage device 19, and the lower ends of the string-stretching resistance wire group are arranged on a resistance wire mounting plate b7 b; the resistance wire mounting plate a7a is formed by welding two semi-annular steel plates on the middle upper parts of an upper semi-annular sleeve a3a and an upper semi-annular sleeve b3b respectively, and the resistance wire mounting plate b7b is formed by welding two semi-annular steel plates on the lower part of the middle parts of a lower semi-annular sleeve a4a and a lower semi-annular sleeve b4b respectively; two lead through holes a20a are formed in the resistance wire mounting plate a7a, two lead through holes b20b are formed in the resistance wire mounting plate b7b, two ends of each resistance wire of the string-stretching resistance wire group 6 are connected with leads 21 to form a running circuit, the two ends of each resistance wire are connected and communicated with each other through the lead through holes a20a and the lead through holes b20b to transmit electric signals, and the string-stretching resistance wires of the string-stretching resistance wire group 6 are coated with insulating layers; the resistance wire mounting plate b7b is provided with 6 dowel bar through openings 22 corresponding to the dowel bar group 2.
The technical scheme of the invention is further specifically optimized as follows: the force transmission rod group 2 is formed by arranging 6 tension string type resistance wires other than 2 tension string type resistance wires of a middle axis in the tension string type resistance wire group 6 by pressing 6 force transmission rods 2a, the main body of the force transmission rod 2a is a cylindrical long rod, the lower end of the force transmission rod 2a is in a conical shape, the upper end of the force transmission rod 2a is welded on the scaffold connecting piece 1 through a force transmission rod through hole 13, and the lower end of the force transmission rod 2a is tightly propped on the piezoelectric crystal 8 through a force transmission rod through hole 22.
The technical scheme of the invention is further specifically optimized as follows: piezoelectric crystal 8 includes piezoelectric crystal a8a and piezoelectric crystal b8 b; the shapes of the piezoelectric crystal a8a and the piezoelectric crystal b8b are 160-degree circular rings; the surfaces of the piezoelectric crystal a8a and the piezoelectric crystal b8b are silver-plated electrodes, and the outer sides of the piezoelectric crystal a8a and the piezoelectric crystal b8b are coated with an insulating coating to be isolated from the force transmission rod group 2; the piezoelectric crystal 8 is pasted on the piezoelectric crystal mounting plate 9, and two poles of the piezoelectric crystal 8 are connected by a lead 21 and are converged into the main circuit.
The technical scheme of the invention is further specifically optimized as follows: the piezoelectric crystal mounting plate 9 comprises a piezoelectric crystal mounting plate a9a and a piezoelectric crystal mounting plate b9 b; the piezoelectric crystal mounting plate a9a is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve a4a and is provided with a lead through hole c23 a; the piezoelectric crystal mounting plate b9b is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve b4b, is provided with a lead through hole d23b, and is subjected to insulation treatment on the surface of the piezoelectric crystal mounting plate 9.
The technical scheme of the invention is further specifically optimized as follows: the lower end of the central axis of the upper annular sleeve 3 is provided with 2 protective bolt mounting openings a31a and 2 protective bolt mounting openings b31b, and the protective bolt mounting openings a31a and the protective bolt mounting openings b31b are rectangular; the upper end of the central axis of the lower annular sleeve 4 is provided with 2 protective bolt mounting openings c32a and 2 protective bolt mounting openings d32b, and the protective bolt mounting openings c32a and the protective bolt mounting openings d32b are rectangular; the protection bolt 18 is attached through the protection bolt attachment opening a31a, the protection bolt attachment opening b31b, the protection bolt attachment opening c32a, and the protection bolt attachment opening d32 b.
Compared with the prior art, the invention has the advantages that:
the detachable scaffold has the advantages that the detachable scaffold is detachable and can be recycled, the detachable scaffold is mounted on a scaffold steel pipe through bolts when in use, and the detachable scaffold is convenient to detach after use.
The invention adopts double measuring means to monitor, is sensitive to the deformation reaction of the steel pipe, and the combination of the scaffold connecting piece and the dowel bar transfers the deformation of the pressed part of the steel pipe and the reaction is carried out by the piezoelectric crystal; the tension part reacts through tension resistance change of the string type resistance wire. The monitoring mode is various, and the monitoring effect is sensitive.
Advantage 3. the invention can 360oThe deformation of the scaffold steel pipe is monitored and early warning is carried out, the scaffold steel pipe deformation early warning device is not limited to monitoring in a fixed plane, and the scaffold steel pipe deformation early warning device can adapt to the uncertainty of the deformation yield direction of the scaffold steel pipe.
The anti-interference device has the advantages that the anti-interference capability is high, and the vibration generated by activities such as building construction or installation can be filtered through the signal processing module, so that the alarm condition is prevented from being mistakenly reported.
The invention has the advantages of direct installation on scaffold steel pipes, simple operation, small device volume and no occupation of excessive use space.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a left side view of the structure of FIG. 1;
FIG. 3 is a schematic diagram of the right side view of FIG. 1;
FIG. 4 is a right side view of the internal structure of FIG. 1;
FIG. 5 is a left side view schematic of the internal construction of FIG. 1;
FIG. 6 is a schematic top view of the structure of FIG. 1;
FIG. 7 is a schematic cross-sectional view taken along line 1-1 in FIG. 1;
FIG. 8 is a schematic cross-sectional view taken along line 2-2 of FIG. 1;
FIG. 9 is a schematic cross-sectional view taken along line 3-3 of FIG. 1;
FIG. 10 is a schematic view of the structure of FIG. 1 taken along the line 4-4;
fig. 11 is a schematic diagram of the internal schematic structure of the signal processing module.
In the figure: 1. a scaffold connector; 1a, a scaffold connecting piece a; 1b, scaffold connecting pieces b; 1c, installing a plate by using an overhanging bolt; 1d, installing a bolt; 2. a force transfer rod assembly; 2a, a dowel bar; 3. an upper annular sleeve; 3a, an upper half ring sleeve a; 3b, an upper half ring sleeve b; 4. a lower annular sleeve; 4a, a lower semi-ring sleeve a; 4b, a lower semi-ring sleeve b; 5. connecting a soft sleeve; 5a, connecting soft sleeves a; 5b, connecting a soft sleeve b; 6. a string-type resistance wire group; 7a, a resistance wire mounting plate a; 7b, a resistance wire mounting plate b; 8. a piezoelectric crystal; 8a, a piezoelectric crystal a; 8b, piezoelectric crystal b; 9. a piezoelectric crystal mounting plate; 9a, a piezoelectric crystal mounting plate a; 9b, a piezoelectric crystal mounting plate b; 10. a signal processing module; 11. an audible and visual alarm; 12a, a sleeve extending bolt port a; 12b, sleeve extending bolt port b; 13. a dowel bar through opening; 14. sealing the rubber sleeve; 15. installing a bolt; 16. installing a bolt; 17a, a sleeve extending bolt port a; 17b, sleeve extending bolt port b; 18. protecting the bolt; 19. an anchorage device; 20a, a wire through hole a; 20b, a wire through hole b; 21. a wire; 22. a dowel bar through opening; 23a, a wire through hole c; 23b, a wire through hole d; 24. a power amplifier module; 25. a filtering module; 26. a microcomputer processing module; 27. a data link; 28. a data interface; 29. a leveling button; 30. a battery compartment; 31a, a protective bolt mounting port a; 31b, a protective bolt mounting port b; 32a, a protective bolt mounting port c; 32b and a protective bolt mounting port d.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more fully understood and fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the invention is not limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 10, a sleeve type scaffold engineering safety early warning device applying double measurement means comprises a scaffold connecting piece 1, a force transmission rod group 2, an upper annular sleeve 3, a lower annular sleeve 4, a connecting soft sleeve 5, a string type resistance wire group 6, a resistance wire mounting plate 7, a piezoelectric crystal 8, a piezoelectric crystal mounting plate 9, a signal processing module 10 and an acousto-optic alarm 11; the force transmission rod group 2 is welded at the lower end of the scaffold connecting piece 1, the upper annular sleeve 3 and the lower annular sleeve 4 are wrapped outside the force transmission rod group 2, the upper annular sleeve 3 and the lower annular sleeve 4 are connected by the connecting soft sleeve 5, the string-type resistance wire group 6 is installed on the resistance wire installation plate 7 and placed in the upper annular sleeve 3 and the lower annular sleeve 4, and the piezoelectric crystal 8 is installed on the piezoelectric crystal installation plate 9 and placed in the lower annular sleeve 4; the string-type resistance wire group 6 and the piezoelectric crystal 8 are connected with a signal input end of the signal processing module 10 through a lead 21, after electric signals are processed by the signal processing module 10, the electric signals are transmitted to the acousto-optic alarm 11 through a signal output end, the acousto-optic alarm 11 gives an alarm when an alarm condition occurs, and the protective bolt 18 prevents the device from being damaged in the transportation and installation processes.
Scaffold connection spare 1 includes scaffold connection spare a1a, scaffold connection spare b1b, scaffold connection spare a1a, scaffold connection spare b1b is the semicircle ring-shaped of adaptation scaffold steel pipe appearance, its two ports all set up the overhanging bolt mounting panel 1c of rectangle, scaffold connection spare a1a, scaffold connection spare b1b makes up through the overhanging bolt mounting panel 1c of rectangle through two construction bolt 1d, scaffold connection spare a1a, scaffold connection spare b1b lower surface and the welding of driving force pole group 2, scaffold connection spare a1a, scaffold connection spare b1b material is the stainless steel.
The upper annular sleeve 3 comprises an upper half annular sleeve a3a and an upper half annular sleeve b3b, the main bodies of the upper half annular sleeve a3a and the upper half annular sleeve b3b are two semi-annular steel sheets, the left end and the right end of the upper half annular sleeve b3b are closed and are provided with a sleeve extending bolt port a12a and a sleeve extending bolt port b12b, the upper end of the upper half annular sleeve is closed, a force transmission rod through port 13 is arranged on the upper top surface of the upper half annular sleeve, the position of the force transmission rod through port 13 is matched with the force transmission rod group 2, the shape of the force transmission rod through port 13; the dowel bar through hole 13 and the dowel bar group 2 are sealed through a sealing rubber sleeve 14; the lower ends of the upper half ring sleeve a3a and the upper half ring sleeve b3b are open and are glued with the connecting soft sleeve 4; the upper ring half sleeve a3a and the upper ring half sleeve b3b are assembled by 4 mounting bolts 15 through sleeve extension bolt openings a12a and sleeve extension bolt openings b12 b.
The lower annular sleeve 4 comprises a lower half-ring sleeve a4a and a lower half-ring sleeve b4b, the main bodies of the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are two semi-annular steel sheets, two ends of the lower half-ring sleeve are closed, the lower half-ring sleeve is provided with a sleeve extending bolt port a17a and a sleeve extending bolt port b17b, and the lower end of the lower half-ring sleeve is closed; the upper ends of the lower semi-ring sleeve a4a and the lower semi-ring sleeve b4b are open and are glued with the connecting soft sleeve 4; the lower half-ring sleeve a4a and the lower half-ring sleeve b4b are combined by 4 mounting bolts 16 through a sleeve extending bolt opening a17a and a sleeve extending bolt opening b17b, and the lower end of the outer half-ring steel sheet of the lower half-ring sleeve a4a is opened with a round opening to mount the audible and visual alarm 11.
The connecting soft sleeve 5 comprises a connecting soft sleeve a5a and a connecting soft sleeve b5b, the upper end of the connecting soft sleeve a5a is glued on two semi-annular steel sheets of the upper semi-annular sleeve a3a by two PVC soft films, and forms an intercommunicated whole with the upper semi-annular sleeve a3 a; the lower end of the semi-annular sleeve is formed by adhering two PVC soft films on two semi-annular steel sheets of the lower semi-annular sleeve a4a and forming an intercommunicated whole with the lower semi-annular sleeve a4 a; the left and right ends are closed.
The string-stretching resistance wire group 6 consists of 8 string-stretching resistance wires with the spacing of about 45oThe resistance wire groups 6 are arranged in a centrosymmetric way, 4 resistance wire groups are arranged on each side, the upper ends of the resistance wire groups are arranged on the resistance wire mounting plates a7a through the anchorage devices 19, and the lower ends of the resistance wire groups are arranged on the resistance wire mounting plates b7 b; the resistance wire mounting plate a7a is composed of two semi-annular steel plates welded on the middle upper part of the upper semi-annular sleeve a3a and the upper semi-annular sleeve b3b respectively, and the resistance wire mounting plate b7b is composed of two semi-annular steel plates welded on the lower semi-annular sleeve a4a and the lower semi-annular sleeve a4a respectivelyThe middle part of the sleeve b4b is lower; two lead through holes a20a are formed in the resistance wire mounting plate a7a, two lead through holes b20b are formed in the resistance wire mounting plate b7b, two ends of each resistance wire of the string-stretching resistance wire group 6 are connected with leads 21 to form a running circuit, the two ends of each resistance wire are connected and communicated with each other through the lead through holes a20a and the lead through holes b20b to transmit electric signals, and the string-stretching resistance wires of the string-stretching resistance wire group 6 are coated with insulating layers; the resistance wire mounting plate b7b is provided with 6 dowel bar through openings 22 corresponding to the dowel bar group 2.
The force transmission rod group 2 is formed by arranging 6 tension string type resistance wires other than 2 tension string type resistance wires of a middle axis in the tension string type resistance wire group 6 by pressing 6 force transmission rods 2a, the main body of the force transmission rod 2a is a cylindrical long rod, the lower end of the force transmission rod 2a is in a conical shape, the upper end of the force transmission rod 2a is welded on the scaffold connecting piece 1 through a force transmission rod through hole 13, and the lower end of the force transmission rod 2a is tightly propped on the piezoelectric crystal 8 through a force transmission rod through hole 22.
The piezoelectric crystal 8 comprises a piezoelectric crystal a8a and a piezoelectric crystal b8b, wherein the shapes of the piezoelectric crystal a8a and the piezoelectric crystal b8b are 160oThe material of the circular ring can be quartz wafers or piezoelectric ceramics; the surfaces of the piezoelectric crystal a8a and the piezoelectric crystal b8b are silver-plated electrodes, and the outer sides of the piezoelectric crystal a8a and the piezoelectric crystal b8b are coated with an insulating coating to be isolated from the force transmission rod group 2; the piezoelectric crystal 8 is pasted on the piezoelectric crystal mounting plate 9, and two poles of the piezoelectric crystal 8 are connected by a lead 21 and are converged into the main circuit.
The piezoelectric crystal mounting plate 9 comprises a piezoelectric crystal mounting plate a9a and a piezoelectric crystal mounting plate b9b, wherein the piezoelectric crystal mounting plate a9a is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve a4a, and is provided with a lead through hole c23 a; the piezoelectric crystal mounting plate b9b is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve b4b, is provided with a lead through hole d23b, and is subjected to insulation treatment on the surface of the piezoelectric crystal mounting plate 9.
The processing module 10 comprises a power amplifier module 24, a filtering module 25 and a microcomputer processing module 26, the left and right wires of the device are connected through a data connecting wire 27 arranged at the bottom of the lower annular sleeve 4, when the device is used, the data connecting wire 27 is inserted into a data interface 28 arranged at the bottom of the lower annular sleeve 4 to realize data intercommunication, and when the device is dismounted, the data connecting wire is pulled down to dismount the device; the electric signal is transmitted to the power amplifier module 24 by the wire 21, the output end of the power amplifier module 24 is connected with the input end of the filter module 25, the output end of the filter module 25 is connected with the input end of the microcomputer processing module 26, the microcomputer processing module 26 transmits the processing signal to the acousto-optic alarm 11, and the acousto-optic alarm 11 gives an alarm when encountering an alarm condition; the power amplifier module 24 adopts an instrument amplifier AD620, and has the characteristics of high accuracy, high performance and low cost; the filtering module 25 adopts an OP07 high-precision operational amplifier, so that high-frequency interference in the environment can be suppressed; the microcomputer processing module 26 adopts an AT89C51 chip, and can process signals and send out an alarm instruction through assembly language; the microcomputer processing module 26 is provided with a leveling button 29 at the bottom of the lower annular sleeve 4, and when the device is used, the device is leveled to balance initial errors; the acousto-optic alarm 11 is provided with a power switch, and the bottom of the lower annular sleeve 4 is provided with a battery bin 30 for supplying power to the device.
The lower end of the central axis of the upper annular sleeve 3 is provided with 2 protective bolt mounting ports a31a and 2 protective bolt mounting ports b31b which are rectangular; the upper end of the central axis of the lower annular sleeve 4 is provided with 2 protecting bolt mounting openings c32a and 2 protecting bolt mounting openings d32b which are rectangular; the protective bolts 18 are installed through the protective bolt installation openings a31a, the protective bolt installation openings b31b, the protective bolt installation openings c32a and the protective bolt installation openings d32b, the number of the protective bolts is 4, when the device is used, the protective bolts are disassembled, the device starts to work, when the device is disassembled, the protective bolts 18 are installed firstly, then the device is disassembled, and the internal tension string type resistance wire group 6 and the piezoelectric crystal 8 are prevented from being damaged.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that these embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that can be used in the present specification and drawings, or used directly or indirectly in other related fields are encompassed by the present invention.
Claims (10)
1. A telescopic scaffold engineering safety early warning device applying double measuring means is characterized by comprising a scaffold connecting piece (1), a force transmission rod group (2), an upper annular sleeve (3), a lower annular sleeve (4), a connecting soft sleeve (5), a string type resistance wire group (6), a resistance wire mounting plate (7), a piezoelectric crystal (8), a piezoelectric crystal mounting plate (9), a signal processing module (10) and a sound-light alarm (11); the force transmission rod group (2) is welded at the lower end of the scaffold connecting piece (1), the upper annular sleeve (3) and the lower annular sleeve (4) are wrapped outside the force transmission rod group (2), the connecting soft sleeve (5) connects the upper annular sleeve (3) and the lower annular sleeve (4), the string-stretching type resistance wire group (6) is installed on the resistance wire installation plate (7) and placed in the upper annular sleeve (3) and the lower annular sleeve (4), and the piezoelectric crystal (8) is installed on the piezoelectric crystal installation plate (9) and placed in the lower annular sleeve (4); open string formula resistance wire group (6) and piezocrystal (8) and pass through wire (21) and link to each other with the signal input part of signal processing module (10), and signal processing module (10) are handled the back with the signal of telecommunication, transmit for reputation siren (11) through signal output part, and reputation siren (11) report to the police when the alarm condition appears, and protection bolt (18) make the device avoid damaging in the transportation installation.
2. The telescopic scaffold engineering safety precaution device of applying dual measurement means according to claim 1, characterized in that the scaffold connection (1) comprises a scaffold connection a (1 a) and a scaffold connection b (1 b); scaffold connection spare a (1 a) and scaffold connection spare b (1 b) are the semicircle ring-shaped of adaptation scaffold steel pipe appearance, and its two ports all set up overhanging bolt mounting panel of rectangle (1 c), and scaffold connection spare a (1 a), scaffold connection spare b (1 b) are made up through overhanging bolt mounting panel of rectangle (1 c) through two construction bolt (1 d), and scaffold connection spare a (1 a) and scaffold connection spare b (1 b) lower surface and biography power pole group (2) welding.
3. The telescopic scaffolding engineering safety precaution device to apply double measure means according to claim 1, characterized in that the upper annular sleeve (3) comprises an upper half-collar a (3 a) and an upper half-collar b (3 b); the main bodies of the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) are two half ring-shaped steel sheets; the left end and the right end of the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) are closed and are provided with a sleeve extending bolt port a (12 a) and a sleeve extending bolt port b (12 b); the upper ends of the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) are closed, a force transmission rod through hole (13) is formed in the upper top surface, the position of the force transmission rod through hole (13) is matched with that of the force transmission rod group (2), and the shape of the force transmission rod through hole is an ellipse with a circular long axis; the dowel bar through hole (13) and the dowel bar group (2) are sealed through a sealing rubber sleeve (14); the lower ends of the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) are open and are glued with the connecting soft sleeve (4); the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) are combined by 4 mounting bolts (15) through a sleeve outward bolt opening a (12 a) and a sleeve outward bolt opening b (12 b).
4. The telescopic scaffolding engineering safety precaution device applying double measuring means according to claim 1, characterized in that the lower annular sleeve (4) comprises a lower semi-ring sleeve a (4 a) and a lower semi-ring sleeve b (4 b); the main bodies of the lower semi-ring sleeve a (4 a) and the lower semi-ring sleeve b (4 b) are two semi-annular steel sheets, two ends of the lower semi-ring sleeve a (4 a) and the lower semi-ring sleeve b (4 b) are closed and are provided with a sleeve external bolt opening a (17 a) and a sleeve external bolt opening b (17 b), and the lower ends of the lower semi-ring sleeve a (4 a) and the lower semi-ring sleeve b (4 b) are closed; the upper ends of the lower semi-ring sleeve a (4 a) and the lower semi-ring sleeve b (4 b) are open and are glued with the connecting soft sleeve (4); the lower half ring sleeve a (4 a) and the lower half ring sleeve b (4 b) are combined through a sleeve external bolt opening a (17 a) and a sleeve external bolt opening b (17 b) by 4 mounting bolts (16), and the lower end of the outer half ring steel sheet of the lower half ring sleeve a (4 a) is provided with a round opening for mounting an audible and visual alarm (11).
5. The telescopic scaffold engineering safety precaution device applying dual measurement means as claimed in claim 1, characterized in that said connecting soft sleeve (5) comprises a connecting soft sleeve a (5 a) and a connecting soft sleeve b (5 b); the upper end of the connecting soft sleeve a (5 a) is glued on two semi-annular steel sheets of the upper half-ring sleeve a (3 a) by two PVC soft films, and forms an intercommunicated whole with the upper half-ring sleeve a (3 a); the lower end is formed by adhering two PVC soft films on two semi-annular steel sheets of the lower semi-annular sleeve a (4 a) for gluing, and the lower semi-annular sleeve a (4 a) and the lower semi-annular sleeve form an intercommunicated whole, and the left end and the right end are closed.
6. The telescopic scaffold engineering safety early warning device applying the double measurement means as claimed in claim 1, wherein the string-stretching type resistance wire group (6) is composed of 8 string-stretching type resistance wires which are arranged in centrosymmetric mode at an interval of about 45 degrees, 4 wires are arranged on each side, the upper end of the string-stretching type resistance wire group (6) is installed on a resistance wire installation plate a (7 a) through an anchorage device (19), and the lower end of the string-stretching type resistance wire group is installed on a resistance wire installation plate b (7 b); the resistance wire mounting plate a (7 a) is formed by welding two semi-annular steel plates on the middle upper parts of the upper half ring sleeve a (3 a) and the upper half ring sleeve b (3 b) respectively, and the resistance wire mounting plate b (7 b) is formed by welding two semi-annular steel plates on the middle lower parts of the lower half ring sleeve a (4 a) and the lower half ring sleeve b (4 b) respectively; two lead through holes a (20 a) are formed in the resistance wire mounting plate a (7 a), two lead through holes b (20 b) are formed in the resistance wire mounting plate b (7 b), two ends of each resistance wire of the string-stretching resistance wire group (6) are connected with leads (21) to form an operating circuit, the two ends are connected and communicated with each other through the lead through holes a (20 a) and the lead through holes b (20 b) to transmit electric signals, and the string-stretching resistance wires of the string-stretching resistance wire group (6) are coated with insulating layers; and 6 dowel bar through openings (22) which are matched with the dowel bar group (2) are arranged on the resistance wire mounting plate b (7 b).
7. The telescopic scaffold engineering safety early warning device applying the double measuring means as claimed in claim 1, characterized in that the force transmission rod group (2) is composed of 6 force transmission rods (2 a) arranged in a row except for the (2) string-type resistance wires of the central axis in the string-type resistance wire group (6), the main body of the force transmission rods (2 a) is a cylindrical long rod, the lower end of the force transmission rods (2 a) is conical, the upper ends of the force transmission rods (2 a) are welded on the scaffold connecting piece (1) through force transmission rod through holes (13), and the lower ends of the force transmission rods (2 a) are tightly pressed on the piezoelectric crystal (8) through force transmission rod through holes (22).
8. The telescopic scaffold engineering safety precaution device applying dual measurement means according to claim 1, characterized in that the piezoelectric crystal (8) comprises a piezoelectric crystal a (8 a) and a piezoelectric crystal b (8 b); the shapes of the piezoelectric crystal a (8 a) and the piezoelectric crystal b (8 b) are 160-degree circular rings; the surfaces of the piezoelectric crystal a (8 a) and the piezoelectric crystal b (8 b) are silver-plated electrodes, and the outer sides of the piezoelectric crystal a (8 a) and the piezoelectric crystal b (8 b) are coated with an insulating coating layer to be isolated from the force transmission rod group (2); the piezoelectric crystal (8) is pasted on the piezoelectric crystal mounting plate (9), and the two poles of the piezoelectric crystal (8) are connected by a lead (21) and are converged into the main circuit.
9. The telescopic scaffold engineering safety precaution device of application two measurement means of claim 1, characterized by that, the said piezoelectric crystal mounting plate (9) includes piezoelectric crystal mounting plate a (9 a) and piezoelectric crystal mounting plate b (9 b); the piezoelectric crystal mounting plate a (9 a) is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve a (4 a), and is provided with a lead through hole c (23 a); the piezoelectric crystal mounting plate b (9 b) is a semi-annular steel plate, is welded at the middle lower part of the lower semi-annular sleeve b (4 b) and is provided with a lead through hole d (23 b), and the surface of the piezoelectric crystal mounting plate (9) is subjected to insulation treatment.
10. The telescopic scaffold engineering safety precaution device of application two measurement means of claim 1, characterized by, the said upper ring sleeve (3) middle axis lower extreme sets up and protects 2 protective bolt installing ports a (31 a) and 2 protective bolt installing ports b (31 b), the shape of protective bolt installing port a (31 a) and protective bolt installing port b (31 b) is rectangle; 2 protection bolt mounting openings c (32 a) and 2 protection bolt mounting openings d (32 b) are formed in the upper end of the central axis of the lower annular sleeve (4), and the protection bolt mounting openings c (32 a) and the protection bolt mounting openings d (32 b) are rectangular; the protection bolt (18) is attached through a protection bolt attachment opening a (31 a), a protection bolt attachment opening b (31 b), a protection bolt attachment opening c (32 a), and a protection bolt attachment opening d (32 b).
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| CN201911075189.XA CN110766910B (en) | 2019-11-06 | 2019-11-06 | Sleeve type scaffold engineering safety early warning device applying double measurement means |
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| CN201911075189.XA CN110766910B (en) | 2019-11-06 | 2019-11-06 | Sleeve type scaffold engineering safety early warning device applying double measurement means |
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| CN108775144A (en) * | 2018-06-27 | 2018-11-09 | 山东亲橙里教学用品有限公司 | A kind of special external telescopic scaffold of building |
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| CN203403665U (en) * | 2013-05-15 | 2014-01-22 | 贵州群力发科技开发有限公司 | Anti-falling scaffold with annular sleeve |
| US20160060980A1 (en) * | 2014-08-28 | 2016-03-03 | Nabors Industries, Inc. | Methods and systems for tubular validation |
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