CN112649126B - Safety monitoring device for cable construction - Google Patents
Safety monitoring device for cable construction Download PDFInfo
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- CN112649126B CN112649126B CN202010891164.3A CN202010891164A CN112649126B CN 112649126 B CN112649126 B CN 112649126B CN 202010891164 A CN202010891164 A CN 202010891164A CN 112649126 B CN112649126 B CN 112649126B
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- wheel
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 238000012806 monitoring device Methods 0.000 title claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electric Cable Installation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of cable construction, in particular to a safety monitoring device for cable construction, which comprises a wire sleeve, wherein a wire inlet wheel and a wire outlet wheel are fixedly arranged in the wire sleeve, a cable penetrates through the wire sleeve, a side box is fixedly arranged on the wire sleeve, a top plate is fixedly arranged on the side box, a limiting groove is formed in the top plate, a sliding block is slidably arranged in the limiting groove, a force release rod is fixedly arranged on the sliding block, a reset spring is fixedly connected to the force release rod, a pressing wheel is rotatably arranged on the force release rod, a limiting rod is fixedly arranged on the top plate, and a sliding sleeve is slidably arranged on the limiting rod; the force releasing rod is used for feeding back traction force in real time and playing a role of timely releasing force, when the monitored pressure is overlarge, the force releasing rod can slide in the limiting groove through the sliding block, so that the sliding sleeve is avoided, the damage to a cable caused by the reaction force of the guide wheel is prevented, and the pressure of the force releasing rod exceeds the detection threshold value of the pressure sensor.
Description
Technical Field
The invention relates to the technical field of cable construction, in particular to a safety monitoring device for cable construction.
Background
With the upgrading of the transformation of the urban power grid, the degree of the cabling of the urban power grid is higher and higher, and the role of the cable in the power grid is more and more important. When the cable is laid, the front end of the cable is pulled by a tractor through a rope, and the control of the traction force of the rope is a key link for ensuring the laying quality of the cable. In a conventional power cable laying construction method, a site constructor determines whether to add a conveyor, a plurality of conveyors, how to set a pay-off stand, how to handle a turn, and the like in the middle according to the length of a laid cable, whether a bend exists in the middle of a pipeline, and the like by combining with the conventional construction experience. When actually laying cables, the pulling traction rope has how large the traction force of the cables is, real-time change of the traction force cannot be accurately mastered, and human judgment inevitably has errors, if the traction force is too large, the traction rope can be directly reflected at a cable bending part, wrinkles and damage can possibly occur to the surface of an insulating sleeve of the cable, and potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a safety monitoring device for cable construction, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a safety monitoring device for cable construction comprises a wire sleeve, wherein a wire inlet wheel and a wire outlet wheel are fixedly installed in the wire sleeve, a cable penetrates through the wire sleeve, a side box is fixedly installed on the wire sleeve, a top plate is fixedly installed on the side box, a limiting groove is formed in the top plate, a sliding block is slidably installed in the limiting groove, a force release rod is fixedly installed on the sliding block, a reset spring is fixedly connected to the force release rod, a pressing wheel is rotatably installed on the force release rod, a limiting rod is fixedly installed on the top plate, a sliding sleeve is slidably installed on the limiting rod, a guide wheel is rotatably installed on the sliding sleeve, a sliding rail is fixedly installed on the side box, a jacking spring is fixedly connected in the sliding rail, a baffle is fixedly connected to the jacking spring, a pressure sensor is fixedly installed on the baffle, an electromagnet is fixedly installed in the side box, and the electromagnet is electrically connected to a power supply, the power supply is electrically connected with a signal processor and an alarm.
Preferably, the wire sleeve is in an arc sleeve shape, the wire inlet wheel and the wire outlet wheel are respectively installed at two ends of the wire sleeve, the cable is sequentially wound on the wire inlet wheel, the guide wheel and the wire outlet wheel, and the guide wheel is located in the middle of the wire sleeve.
Preferably, the inboard at the arc line cover is installed to the side case, and roof and line cover inner chamber intercommunication, spacing groove and slider mirror image on the roof are provided with two sets ofly, and let out power pole slope and install on the slider, reset spring connects between two power poles of letting out, and the pinch roller is installed in the one end of letting out the power pole, the ball is installed through the sphere pair to the other end of letting out the power pole, the sliding sleeve is located two power poles of letting out, and the sliding sleeve is provided with the side of slope.
Preferably, the slide rail is provided with two, and the symmetry is installed in the roof both sides, baffle sliding connection is in the slide rail, and jacking spring coupling between baffle and slide rail bottom, pressure sensor connects in the inboard of baffle, and pinch roller and pressure sensor contact.
Preferably, the limiting rod is vertically connected to the top plate, a through groove is formed in the sliding sleeve, and the guide wheel is installed at the top of the sliding sleeve.
Preferably, pressure sensor and signal processor electric connection, and the power installation is in the middle part of side case, electro-magnet and alarm pass through the same on-off control of power, and the electro-magnet is installed in the bottom of slide rail.
Compared with the prior art, the invention has the beneficial effects that:
1. the cable is guided by installing the three rollers, namely the wire inlet wheel, the wire outlet wheel and the guide wheel, in the arc-shaped wire sleeve, the change of the traction force of the cable can be reflected to the guide wheel, the guide wheel generates pressure on the sliding sleeve and shares the pressure on the two force release rods through the sliding sleeve, and the force release rods can extrude the pressure sensor through the pressing wheel at the end part of the force release rods, so that the indirect measurement of the traction force is performed, the traction force can be visually represented, the method is not dependent on the experience of workers, and the cable construction process is safer;
2. according to the invention, the magnitude of the traction force is fed back in real time through the force release rod, the force release rod can play a role of timely releasing force, when the pressure is monitored to be overlarge, the signal processor controls the switch of the power supply, one side of the power supply gives an alarm through the alarm, the other side of the power supply generates suction through the electromagnet, the power supply acts on the jacking spring to contract, so that the baffle and the pressure sensor are driven to retract into the sliding rail, the space for the force release rod and the pressure roller to move is reserved, the force release rod can slide in the limiting groove through the sliding block to avoid the sliding sleeve, and the damage to a cable caused by the reaction force of the guide wheel and the fact that the pressure of the force release rod exceeds the detection threshold value of the pressure sensor are prevented.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a pressure relief structure according to the present invention;
FIG. 3 is a schematic view of an electrical connection structure according to the present invention.
In the figure: the wire sleeve comprises a wire sleeve 1, a wire inlet wheel 2, a wire outlet wheel 3, a cable 4, a side box 5, a top plate 6, a limiting groove 7, a sliding block 8, a force release rod 9, a reset spring 10, a pressing wheel 11, a limiting rod 12, a sliding sleeve 13, a guide wheel 14, a sliding rail 15, a jacking spring 16, a baffle 17, a pressure sensor 18, an electromagnet 19, a power supply 20, a signal processor 21 and an alarm 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: a safety monitoring device for cable construction comprises a wire sleeve 1, wherein a wire inlet wheel 2 and a wire outlet wheel 3 are fixedly installed in the wire sleeve 1, a cable 4 penetrates through the wire sleeve 1, a side box 5 is fixedly installed on the wire sleeve 1, a top plate 6 is fixedly installed on the side box 5, a limiting groove 7 is arranged on the top plate 6, a sliding block 8 is installed in the limiting groove 7 in a sliding mode, a force releasing rod 9 is fixedly installed on the sliding block 8, a reset spring 10 is fixedly connected onto the force releasing rod 9, a pressing wheel 11 is rotatably installed on the force releasing rod 9, a limiting rod 12 is fixedly installed on the top plate 6, a sliding sleeve 13 is installed on the limiting rod 12 in a sliding mode, a guide wheel 14 is rotatably installed on the sliding sleeve 13, a sliding rail 15 is fixedly installed on the side box 5, a jacking spring 16 is fixedly connected into the sliding rail 15, a baffle 17 is fixedly connected onto the jacking spring 16, and a pressure sensor 18 is fixedly installed onto the baffle 17, an electromagnet 19 is fixedly installed in the side box 5, the electromagnet 19 is electrically connected to a power source 20, and the power source 20 is electrically connected with a signal processor 21 and an alarm 22.
The cable sleeve 1 is in an arc sleeve shape, the wire inlet wheel 2 and the wire outlet wheel 3 are respectively installed at two ends of the cable sleeve 1, the cable 4 is sequentially wound on the wire inlet wheel 2, the guide wheel 14 and the wire outlet wheel 3, the guide wheel 14 is located in the middle of the cable sleeve 1, three points of the wire inlet wheel 2, the wire outlet wheel 3 and the guide wheel 14 form an arc track, the cable 4 passes through the three rollers, the arc state of the cable 4 can be kept when traction force is normal, and the friction force of the rollers is small, so that the cable 4 is not easy to wear;
the side box 5 is arranged on the inner side of the arc-shaped wire sleeve 1, the top plate 6 is communicated with the inner cavity of the wire sleeve 1, two groups of limiting grooves 7 and sliders 8 are arranged on the top plate 6 in a mirror image manner, the force release rods 9 are obliquely arranged on the sliders 8, the return spring 10 is connected between the two force release rods 9, the pinch roller 11 is arranged at one end of the force release rod 9, balls are arranged at the other end of the force release rod 9 through a spherical pair, the sliding sleeve 13 is positioned between the two force release rods 9 and is provided with an oblique side surface, when the cable 4 passes through the guide wheel 14, pressure is generated on the guide wheel 14, the pressure is increased along with the increase of traction force, the pressure received by the guide wheel 14 is reflected on the sliding sleeve 13, the sliding sleeve 13 has the tendency of sliding on the limiting rods 12, pressure is generated on the force release rods 9 at two sides, the indirect monitoring of the traction force of the cable 4 is carried out by detecting the pressure of the force release rods 9, when the traction force is too large, in order to prevent the cable 4 from being damaged due to the reaction force of the guide wheel 14 and prevent the pressure of the force release rod 9 from exceeding the detection threshold of the pressure sensor 18, the force release rod 9 can slide in the limiting groove 7 through the sliding block 8, so as to avoid the sliding sleeve 13;
the two slide rails 15 are symmetrically arranged on two sides of the top plate 6, the baffle 17 is connected in the slide rails 15 in a sliding manner, the jacking spring 16 is connected between the baffle 17 and the bottom of the slide rails 15, the pressure sensor 18 is connected on the inner side of the baffle 17, the press wheel 11 is in contact with the pressure sensor 18, the baffle 17 is lifted in a sliding manner through the elastic force of the jacking spring 16, the pressure sensor 18 is driven to block the press wheel 11 at the end part of the force release rod 9, the pressure generated by the press wheel 11 is detected, and therefore the traction force borne by the cable 4 is indirectly monitored;
the limiting rod 12 is vertically connected to the top plate 6, a through groove is formed in the sliding sleeve 13, the guide wheel 14 is installed at the top of the sliding sleeve 13, the guide wheel 14 is in contact with the cable 4 to bear force, and pressure is reflected on the force release rod 9 through the sliding sleeve 13;
the pressure sensor 18 is electrically connected with the signal processor 21, the power supply 20 is installed in the middle of the side box 5, the electromagnet 19 and the alarm 22 are controlled by the same switch of the power supply 20, the electromagnet 19 is installed at the bottom of the sliding rail 15, the pressure of the pressure wheel 11 is sensed by the pressure sensor 18, the pressure sensor 18 converts a pressure signal into an electric signal and transmits the electric signal to the signal processor 21, when the pressure is monitored to be overlarge, the signal processor 21 controls the switch of the power supply 20, the alarm 22 gives an alarm on one side, the electromagnet 19 generates suction on the other side, the suction acts on the jacking spring 16 to contract the jacking spring 16, so that the baffle 17 and the pressure sensor 18 are driven to retract into the sliding rail 15, and the space for the movement of the pressure release rod 9 and the pressure wheel 11 is reserved;
the working principle is as follows: firstly, an arc track is formed by three points of a wire inlet wheel 2, a wire outlet wheel 3 and a guide wheel 14, a cable 4 passes through three rollers and passes through a wire sleeve 1 to be laid when being dragged, the arc state of the cable 4 can be kept when the traction force is normal, the friction force of the rollers is small, the abrasion of the cable 4 is not easy to cause, meanwhile, when the cable 4 passes through the guide wheel 14, pressure can be generated on the guide wheel 14, the pressure is increased along with the increase of the traction force, the pressure received by the guide wheel 14 is reflected on a sliding sleeve 13, the sliding sleeve 13 has the tendency of sliding on a limiting rod 12 to generate pressure on force release rods 9 at two sides, a pinch roller 11 is installed at the end part of the force release rod 9, a baffle 17 is lifted in a sliding manner through the elastic force of a jacking spring 16, a pressure sensor 18 is driven to block on the pinch roller 11 at the end part of the force release rod 9, and the pressure generated by the pinch roller 11 is detected, therefore, the traction force borne by the cable 4 is indirectly monitored in real time, the pressure sensor 18 converts the pressure signal into an electric signal and transmits the electric signal to the signal processor 21, when the pressure is monitored to be overlarge, the signal processor 21 controls the switch of the power supply 20, the alarm 22 alarms on one side, the electromagnet 19 generates suction on the other side, the suction acts on the jacking spring 16 to enable the jacking spring to contract, the baffle 17 and the pressure sensor 18 are driven to retract into the sliding rail 15, the space for moving the pressure release rod 9 and the pressure wheel 11 is reserved, the pressure release rod 9 can slide in the limiting groove 7 through the sliding block 8, the sliding sleeve 13 is avoided, and the damage to the cable 4 caused by the reaction force of the guide wheel 14 and the pressure of the pressure release rod 9 exceeding the detection threshold value of the pressure sensor 18 are prevented.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a safety monitoring device of cable construction, includes wire cover (1), its characterized in that: the cable comprises a cable sleeve (1), a wire inlet wheel (2) and a wire outlet wheel (3) are fixedly installed in the cable sleeve (1), a cable (4) penetrates through the cable sleeve (1), a side box (5) is fixedly installed on the cable sleeve (1), a top plate (6) is fixedly installed on the side box (5), a limiting groove (7) is formed in the top plate (6), a sliding block (8) is installed in the limiting groove (7) in a sliding mode, a force releasing rod (9) is fixedly installed on the sliding block (8), a reset spring (10) is fixedly connected to the force releasing rod (9), a pressing wheel (11) is rotatably installed on the force releasing rod (9), a limiting rod (12) is fixedly installed on the top plate (6), a sliding sleeve (13) is installed on the limiting rod (12), a guide wheel (14) is rotatably installed on the sliding sleeve (13), a sliding rail (15) is fixedly installed on the side box (5), and a jacking spring (16) is fixedly connected to the sliding rail (15), a baffle plate (17) is fixedly connected to the jacking spring (16), a pressure sensor (18) is fixedly mounted on the baffle plate (17), an electromagnet (19) is fixedly mounted in the side box (5), the electromagnet (19) is electrically connected to a power supply (20), and the power supply (20) is electrically connected with a signal processor (21) and an alarm (22);
the cable sleeve (1) is in an arc sleeve shape, the wire inlet wheel (2) and the wire outlet wheel (3) are respectively installed at two ends of the wire sleeve (1), the cable (4) is sequentially wound on the wire inlet wheel (2), the guide wheel (14) and the wire outlet wheel (3), and the guide wheel (14) is located in the middle of the wire sleeve (1);
the side box (5) is arranged on the inner side of the arc-shaped wire sleeve (1), the top plate (6) is communicated with the inner cavity of the wire sleeve (1), two groups of limiting grooves (7) and sliding blocks (8) are arranged on the top plate (6) in a mirror image manner, the force release rods (9) are obliquely arranged on the sliding blocks (8), the reset spring (10) is connected between the two force release rods (9), the pressing wheel (11) is arranged at one end of the force release rods (9), the other end of the force release rods (9) is provided with a ball through a spherical pair, the sliding sleeve (13) is positioned between the two force release rods (9), and the sliding sleeve (13) is provided with an oblique side face;
the two sliding rails (15) are symmetrically arranged on two sides of the top plate (6), the baffle (17) is connected in the sliding rails (15) in a sliding mode, the jacking spring (16) is connected between the baffle (17) and the bottoms of the sliding rails (15), the pressure sensor (18) is connected to the inner side of the baffle (17), and the pinch roller (11) is in contact with the pressure sensor (18); the limiting rod (12) is vertically connected to the top plate (6), a through groove is formed in the sliding sleeve (13), and the guide wheel (14) is installed at the top of the sliding sleeve (13).
2. The safety monitoring device for cable construction according to claim 1, wherein: pressure sensor (18) and signal processor (21) electric connection, and power (20) install the middle part in side case (5), electro-magnet (19) and alarm (22) pass through the same on-off control of power (20), and electro-magnet (19) install the bottom at slide rail (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891164.3A CN112649126B (en) | 2020-08-30 | 2020-08-30 | Safety monitoring device for cable construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891164.3A CN112649126B (en) | 2020-08-30 | 2020-08-30 | Safety monitoring device for cable construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112649126A CN112649126A (en) | 2021-04-13 |
| CN112649126B true CN112649126B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010891164.3A Active CN112649126B (en) | 2020-08-30 | 2020-08-30 | Safety monitoring device for cable construction |
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| Country | Link |
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| CN (1) | CN112649126B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116785043B (en) * | 2023-06-08 | 2024-04-16 | 温州医科大学附属第一医院 | Orthopedics draw gear |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH461139A (en) * | 1968-02-06 | 1968-08-15 | C Schachenmann & Co Dr | Device for measuring tensile stress in a flexible part |
| BE1006616A3 (en) * | 1993-01-26 | 1994-11-03 | Fernand Humblet | Force sensor. |
| US6901818B1 (en) * | 2002-12-05 | 2005-06-07 | Maxwell C. Cheung | Tension measuring device for mooring line |
| CN102914399B (en) * | 2012-11-09 | 2015-12-16 | 广州供电局有限公司 | Cable laying wall pressure monitor and turning of cable laying apparatus |
| CN103542970A (en) * | 2013-09-23 | 2014-01-29 | 广州岭南电缆股份有限公司 | Lateral pressure detecting device during cable laying |
| CN204167800U (en) * | 2014-09-09 | 2015-02-18 | 中国三冶集团有限公司 | A kind of cable laying draw-gear |
| CN105186388A (en) * | 2015-10-13 | 2015-12-23 | 国网天津市电力公司 | Cable laying turning drive wheel with function of side pressure measurement |
| CN207730361U (en) * | 2018-01-30 | 2018-08-14 | 惠州市日月明实业有限公司 | A kind of distribution stringing pressure-detecting device |
| CN208508396U (en) * | 2018-07-30 | 2019-02-15 | 广东顺德电力设计院有限公司 | A kind of electric power cable laying apparatu |
| CN210291830U (en) * | 2019-03-21 | 2020-04-10 | 谭荣华 | Boiler explosion-proof safety device |
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2020
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