CN113315067B - Suspension type drainage fastener for distribution lines - Google Patents

Suspension type drainage fastener for distribution lines Download PDF

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Publication number
CN113315067B
CN113315067B CN202110610573.6A CN202110610573A CN113315067B CN 113315067 B CN113315067 B CN 113315067B CN 202110610573 A CN202110610573 A CN 202110610573A CN 113315067 B CN113315067 B CN 113315067B
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Prior art keywords
pipe
threaded
bolt
limiting
threaded connection
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CN113315067A (en
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周政敏
朱砚
刘艳明
张勇
侯艳森
何文斌
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Guangdong Xinyuan Hengye Power Line Equipment Co ltd
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Guangzhou Xinyuan Hengye Power Transmission Device Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sink And Installation For Waste Water (AREA)

Abstract

The invention discloses a suspended type drainage wire clamp for a distribution line, which is used for connecting a strain clamp. This design passes through threaded connection at drainage fastener and drainage plate, and drainage fastener and drainage plate still set up fastening bolt and further fastening of nut, further prevents not hard up when guaranteeing compact structure, and the outer wall symmetry sets up the fastening plane on the drainage plate, provides convenience for the additional installation of fastening bolt and nut, has increased the practicality of design.

Description

Suspension type drainage fastener for distribution lines
Technical Field
The invention relates to the field of wire clamps, in particular to a suspension type drainage wire clamp for a power distribution circuit.
Background
With the rapid development of power application facilities of power distribution networks, strain clamps are required to anchor and tighten the two ends of carbon fiber composite core wires to telegraph poles or wire towers in high-voltage and extra-high voltage overhead power systems. The existing strain clamp is matched with the drainage clamp in the using process in a direct fixing mode, and the strain clamp cannot be disassembled and cannot be replaced.
Disclosure of Invention
The invention aims to provide a suspension type drainage wire clamp for a distribution line, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme that the suspended type drainage wire clamp for the distribution line is used for connecting a strain clamp, the strain clamp comprises a main body pipe and a drainage plate, the drainage plate is sleeved on the main body pipe, the drainage wire clamp is connected to the drainage plate through a fastening bolt, and the tail end of the fastening bolt is fastened through a nut.
Preferably, the drainage plate comprises a mounting hole position, a first connecting piece, a mounting pipe, a fastening plane, a first bolt hole and a wire clamp mounting hole;
the first connecting piece is of a bent plate-shaped structure, one end of the first connecting piece is provided with an installation hole position, the other end of the first connecting piece is fixed with the installation pipe, and the main body pipe is sleeved in the installation hole position;
the mounting pipe is of a hollow tubular structure, the wire clamp mounting hole is formed in the mounting pipe, the fastening plane is symmetrically arranged on the outer wall of the mounting pipe, a first bolt hole is formed in the fastening plane, and the first bolt hole penetrates through the mounting pipe;
and threads are arranged on the inner surface of the wire clamp mounting hole.
Preferably, the drainage wire clamp comprises a wire clamp main body, a threaded connection section and a second bolt hole;
the wire clamp main body is fixed with the threaded connecting section, a second bolt hole is formed in the threaded connecting section, and the second bolt hole penetrates through the threaded connecting section;
the surface of the threaded connection section is provided with threads.
Preferably, the threaded connection section is in threaded connection with the mounting pipe, the second bolt hole is aligned with the first bolt hole, the fastening bolt penetrates through the first bolt hole and the second bolt hole, and the head of the fastening bolt and the nut are both in contact with the fastening plane.
Preferably, the nut is provided with an anti-loosening device, the anti-loosening device is fixed on the fastening plane, and the anti-loosening device comprises:
the adjusting device comprises an adjusting bolt, a first balance plate, an adjusting cavity, a spring, a second balance plate, a first limiting tooth, a second limiting tooth, a through hole, a fixing plate, a limiting fixing shell, a clamping section, a ratchet wheel, a bolt limiting part, a bolt limiting cavity, a spring pipe and a ratchet;
the adjusting cavity is fixed on the fastening plane, the adjusting bolt is arranged on one side of the adjusting cavity and is in threaded connection with the wall of the adjusting cavity, and the tail end of the adjusting bolt penetrates through the wall of the adjusting cavity and is hinged to one side of the first balance plate;
one end of the spring is fixed to the other side of the first balance plate, the other end of the spring is fixed to one side of the second balance plate, the other side of the second balance plate is fixed with the first limiting tooth, and the first limiting tooth is meshed with the second limiting tooth fixed on the fixing plate;
the first balance plate, the spring, the second balance plate, the first limiting tooth and the second limiting tooth are all positioned in the adjusting cavity;
the fixing plate penetrates through the adjusting cavity and is fixed on the limiting fixing shell, a through hole is formed in the upper surface of the limiting fixing shell, the clamping section is hinged to the inner side of the limiting fixing shell, and two ends of the spring tube are hinged to the middle position of the clamping section and the inner side of the limiting fixing shell respectively;
the bolt limiting part is arranged in the limiting fixed shell, the periphery of the bolt limiting part is fixed with the ratchet wheel, the ratchet wheel is arranged on the periphery of the ratchet wheel, the ratchet wheel is meshed with the clamping section, the inner periphery of the bolt limiting part is the bolt limiting cavity, and the bolt limiting cavity is communicated with the through hole.
Preferably, still be provided with stop device on the main part pipe, stop device is located the drainage plate both sides, stop device includes:
the first threaded pipe, the first limiting block, the first linkage piece, the second threaded pipe, the second limiting block, the second linkage piece and the second connecting piece are arranged on the first connecting piece;
the first threaded pipe and the second threaded pipe are sleeved outside the main body pipe and are fixed with the main body pipe, threads are arranged on the peripheries of the first threaded pipe and the second threaded pipe, and the first threaded pipe and the second threaded pipe are positioned on two sides of the drainage plate;
a first limiting block is fixed on the periphery of one end, away from the drainage plate, of the first threaded pipe, a first linkage piece is arranged between the first limiting block and the drainage plate, the first linkage piece is in threaded connection with the first threaded pipe, and the first linkage piece is fixed on one side of the drainage plate;
a second limiting block is fixed on the periphery of one end, away from the drainage plate, of the second threaded pipe, a second linkage piece is arranged between the second limiting block and the drainage plate, the second linkage piece is in threaded connection with the second threaded pipe, the second linkage piece is fixed on the other side of the drainage plate, and the thread directions of the periphery of the second threaded pipe and the periphery of the first threaded pipe are opposite;
and the lower ends of the first linkage part and the second linkage part are fixedly provided with a second connecting part, and the second connecting part, the first linkage part and the second linkage part surround the drainage plate.
Preferably, the thinnest wall thickness of the main tube can be calculated by the following formula:
Figure GDA0003320294090000031
wherein D isminThe method comprises the steps of designing and determining the thinnest wall thickness of a main body pipe, L and S of the main body pipe, wherein omega is the Poisson's ratio of the main body pipe material, gamma is the elastic modulus of the main body pipe material, W is the weight of an object at the lower end of the main body pipe, and s is the stressed area of the main body pipe.
Preferably, the device further comprises a threaded connection section connection state detection device, and the threaded connection section connection state detection device comprises:
the temperature sensor is arranged on the drainage plate and used for detecting the temperature of the environment around the drainage plate;
the humidity sensor is arranged on the drainage plate and used for detecting the relative humidity of the environment around the drainage plate;
the force sensor is arranged at the lower end of the wire clamp main body and used for detecting the force of a wire rod suspended at the lower end of the wire clamp main body on the wire clamp main body;
the timer is arranged on the drainage plate and used for detecting the service time of the threaded connection section in a working environment;
the signal transmitter is positioned on the drainage plate and connected with a signal receiver of the monitoring terminal;
the controller, the controller respectively with temperature sensor, humidity transducer, force sensor and signal transmitter electric connection, the controller is based on temperature sensor, humidity transducer, force sensor control signal transmitter work includes:
step 1: the controller obtains an environmental influence index of the connection state of the threaded connection section based on the temperature sensor, the humidity sensor and a formula (1):
Figure GDA0003320294090000041
wherein,
Figure GDA0003320294090000042
for the connection state of the threaded connection section is an environmental influence index, K is the temperature of the environment detected by the temperature sensor, K0Is absolute zero degree, N is the relative humidity of the environment detected by the humidity sensor, alpha is the thread opening angle of the threaded connection section, t is the service time of the threaded connection section in the working environment recorded by the timer, t is the service time of the threaded connection section in the working environment0Is a unit time, theta is a bending angle of the first connecting piece, omega is an elastic modulus of the material of the threaded connecting section,
Figure GDA0003320294090000043
the yield strength of the material of the threaded connection section;
step 2: the controller calculates the threaded connection section connection state index based on the force sensor and formula (2):
Figure GDA0003320294090000044
wherein, W is the connection state index of the threaded connection section, F is the force of a wire rod suspended at the lower end of the wire clamp main body detected by the force sensor on the wire clamp main body, m is the dead weight of the wire clamp main body, l is the thread pitch of the threaded connection section, D is the outer diameter of the threaded connection section, g is the gravitational acceleration, and pi is the circumferential rate;
when the connection state index of the threaded connection section is reduced to the lowest usable range, the drainage wire clamp can be overheated under the rated load or the conductivity and other problems are influenced, so the controller controls the signal transmitter to transmit an alarm signal to the signal receiver so as to inform related maintenance personnel of maintenance, and therefore greater potential safety hazards are avoided.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic view of a flow guide plate according to the present invention;
FIG. 3 is a schematic view of a drainage clip of the present invention;
FIG. 4 is a schematic view of the installation position of the anti-loosening device of the present invention;
FIG. 5 is a schematic structural view of the anti-loosening apparatus of the present invention;
FIG. 6 is a schematic top view of a portion of the anti-loosening apparatus of the present invention;
FIG. 7 is an enlarged schematic view of the anti-loosening apparatus of the present invention at position A;
FIG. 8 is a schematic view of the position of the stop device of the present invention;
fig. 9 is a schematic structural view of the limiting device of the present invention.
In the figure: 1. a main body tube; 2. a drainage plate; 3. a drainage wire clamp; 4. fastening a bolt; 5. a nut; 6. an anti-loosening device; 7. a limiting device; 201. mounting hole sites; 202. a first connecting member; 203. installing a pipe; 204. a fastening plane; 205. a first bolt hole; 206. a wire clamp mounting hole; 301. a wire clamp main body; 302. a threaded connection section; 303. a second bolt hole; 601. adjusting the bolt; 602. a first balance plate; 603. an adjustment chamber; 604. a spring; 605. a second balance plate; 606. a first limit tooth; 607. a second limit tooth; 608. a through hole; 609. a fixing plate; 610. limiting and fixing the shell; 611. a card section; 612. a ratchet wheel; 613. a bolt limit piece; 614. a bolt limiting cavity; 615. a spring tube; 616. a ratchet; 701. a first threaded pipe; 702. a first stopper; 703. a first linkage member; 704. a second threaded pipe; 705. a second threaded pipe; 706. a second linkage member; 707. a second connecting member.
Detailed Description
The description of the present invention as to "first", "second", etc. is for descriptive purposes only, and not for purposes of particular ordinal or sequential meaning, nor for limitations, and is intended to distinguish between components or operations that are described in the same technical language, and is not intended to indicate or imply relative importance or imply the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a suspension type drainage fastener for distribution lines, includes main part pipe 1, drainage plate 2, drainage fastener 3, drainage plate 2 cup joint in on the main part pipe 1, drainage fastener 3 through fastening bolt 4 connect in drainage plate 2, fastening bolt 4 is terminal to be fastened through nut 5.
Preferably, the drainage plate 2 comprises a mounting hole site 201, a first connector 202, a mounting tube 203, a fastening plane 204, a first bolt hole 205, and a wire clamp mounting hole 206;
the first connecting piece 202 is of a bent plate-shaped structure, one end of the first connecting piece 202 is provided with an installation hole 201, the other end of the first connecting piece 202 is fixed with the installation pipe 203, and the main pipe 1 is sleeved in the installation hole 201;
the mounting tube 203 is a hollow tubular structure, the wire clamp mounting hole 206 is formed in the mounting tube 203, the fastening plane 204 is symmetrically arranged on the outer wall of the mounting tube 203, the fastening plane 204 is provided with a first bolt hole 205, and the first bolt hole 205 penetrates through the mounting tube 203;
the inner surface of the wire clamp mounting hole 206 is provided with threads.
Preferably, the drainage clamp 3 comprises a clamp body 301, a threaded connection section 302 and a second bolt hole 303;
the wire clamp main body 301 is fixed with the threaded connection section 302, a second bolt hole 303 is arranged on the threaded connection section 302, and the second bolt hole 303 penetrates through the threaded connection section 302;
the surface of the threaded connection section 302 is provided with threads.
Preferably, the threaded connection section 302 is threaded to the mounting tube 203, the second bolt hole 303 is aligned with the first bolt hole 205, the fastening bolt 4 passes through the first bolt hole 205 and the second bolt hole 303, and the head of the fastening bolt 4 and the nut 5 are both in contact with the fastening plane 204.
The working principle and the beneficial effects of the technical scheme are as follows: this design sets up threaded connection section 302 on drainage fastener 3 and carries out threaded connection through the fastener mounting hole 206 with drainage plate 2 for this project organization is compact, first bolt hole 205 simultaneously, the setting of second bolt hole 303, and at first bolt hole 205, install fastening bolt 4 and nut 5 additional in second bolt hole 303, it is not hard up to have further prevented drainage fastener 3, this design sets up fastening plane 204 at installation pipe 203 outer wall symmetry, it is convenient to install additional for fastening bolt 4 and nut 5, the practicality of design has been increased.
And above-mentioned connection makes drainage fastener and drainage plate can dismantle, has solved current in strain clamp (including main part pipe 1, drainage plate 2 usually) and the collocation of drainage fastener in the use mostly adopt the direct mount mode, can not disassemble, the problem of unable replacement.
Example 2
Referring to fig. 4-7, on the basis of the above embodiment 1, the nut 5 is further provided with an anti-loosening device 6, the anti-loosening device 6 is fixed on the fastening plane 204, and the anti-loosening device 6 includes:
an adjusting bolt 601, a first balance plate 602, an adjusting cavity 603, a spring 604, a second balance plate 605, a first limit tooth 606, a second limit tooth 607, a through hole 608, a fixing plate 609, a limit fixing housing 610, a clamping section 611, a ratchet 612, a bolt limiting piece 613, a bolt limiting cavity 614, a spring tube 615 and a ratchet 616;
the adjusting cavity 603 is fixed on the fastening plane 204, the adjusting bolt 601 is arranged on one side of the adjusting cavity 603, the adjusting bolt 601 is connected with the wall of the adjusting cavity 603 through a thread, and the tail end of the adjusting bolt 601 passes through the wall of the adjusting cavity 603 and is hinged to one side of the first balance plate 602;
one end of the spring 604 is fixed on the other side of the first balance plate 602, the other end of the spring is fixed on one side of the second balance plate 605, the other side of the second balance plate 605 is fixed with the first limit tooth 606, and the first limit tooth 606 is meshed with the second limit tooth 607 fixed on the fixing plate 609;
the first balance plate 602, the spring 604, the second balance plate 605, the first limit tooth 606 and the second limit tooth 607 are all positioned in the adjusting cavity 603;
the fixing plate 609 penetrates through the adjusting cavity 603 and is fixed on the limiting fixing shell 610, a through hole 608 is formed in the upper surface of the limiting fixing shell 610, the clamping section 611 is hinged to the inner side of the limiting fixing shell 610, and two ends of the spring tube 615 are hinged to the middle position of the clamping section 611 and the inner side of the limiting fixing shell 610 respectively;
the bolt limiting piece 613 is arranged in the limit fixing housing 610, the outer periphery of the bolt limiting piece 613 is fixed to the ratchet 612, the ratchet 616 is arranged on the outer periphery of the ratchet 612, the ratchet 616 is engaged with the clamping section 611, the bolt limiting cavity 614 is arranged on the inner periphery of the bolt limiting piece 613, and the bolt limiting cavity 614 is communicated with the through hole 608.
The working principle and the beneficial effects of the technical scheme are as follows: the anti-loosening device 6 is additionally provided with a further anti-loosening drainage wire clamp 3, an adjusting cavity 603 is formed in the fastening plane 204, whether the limiting fixing shell 610 can move up and down is determined by adjusting the distance between the first limiting tooth 606 and the second limiting tooth 607 through an adjusting bolt 601 in the limiting fixing shell, the bolt limiting cavity 614 in the limiting fixing shell 610 is matched with the appearance of a bolt, the turning direction of the bolt is limited through the ratchet wheel 612, the clamping section 611 and the spring tube 615, the loosening of the bolt is prevented, the length of the bolt cannot be limited through a through hole 608 formed in the limiting fixing shell 610, and the design practicability is guaranteed.
Example 3
Referring to fig. 8-9, on the basis of the embodiment 1, a limiting device 7 is further disposed on the main tube 1, the limiting device 7 is located on two sides of the drainage plate 2, and the limiting device 7 includes:
a first threaded pipe 701, a first limit block 702, a first linkage member 703, a second threaded pipe 704, a second limit block 705, a second linkage member 706 and a second connection member 707;
the first threaded pipe 701 and the second threaded pipe 704 are sleeved outside the main body pipe 1, the first threaded pipe 701 and the second threaded pipe 704 are fixed to the main body pipe 1, threads are arranged on the peripheries of the first threaded pipe 701 and the second threaded pipe 704, and the first threaded pipe 701 and the second threaded pipe 704 are located on two sides of the drainage plate 2;
a first limiting block 702 is fixed on the periphery of one end of the first threaded pipe 701, which is far away from the drainage plate 2, a first linkage part 703 is arranged between the first limiting block 702 and the drainage plate 2, the first linkage part 703 is in threaded connection with the first threaded pipe 701, and the first linkage part 703 is fixed on one side of the drainage plate 2;
a second limiting block 705 is fixed on the periphery of one end, away from the drainage plate 2, of the second threaded pipe 704, a second linkage member 706 is arranged between the second limiting block 705 and the drainage plate 2, the second linkage member 706 is in threaded connection with the second threaded pipe 704, the second linkage member 706 is fixed on the other side of the drainage plate 2, and the thread direction of the periphery of the second threaded pipe 704 is opposite to that of the first threaded pipe 701;
a second connecting member 707 is fixed at the lower ends of the first linking member 703 and the second linking member 706, and the second connecting member 707, the first linking member 703 and the second linking member 706 surround the flow-guiding plate 2.
The working principle and the beneficial effects of the technical scheme are as follows: the limiting devices 7 arranged on the two sides of the drainage plate 2 can effectively reduce the relative motion between the drainage plate 2 and the main body tube 1, the first threaded tube 701 and the second threaded tube 704 are fixed on the main body tube 1, and the first linkage part 703 and the second linkage part 706 sleeved on the first threaded tube 701 and the second threaded tube 704 are fixed on the drainage plate 2, so that the first linkage part 703 and the second linkage part 706 are driven to rotate when the drainage plate 2 rotates, and the first threaded tube 701 and the second threaded tube 704 are extruded with the first limiting block 702 or the second limiting block 705 under the action of surface threads to block the motion of the drainage plate 2, so that the relative motion between the drainage plate 2 and the main body tube 1 is reduced, the friction loss is reduced, and the main body tube 1 is protected.
Example 4
On the basis of the above example 1, the thinnest wall thickness of the main tube 1 can be calculated by the following formula:
Figure GDA0003320294090000101
wherein D isminThe method comprises the steps of designing and determining the thinnest wall thickness of a main body pipe 1, L the length of the main body pipe 1, omega the Poisson's ratio of a material of the main body pipe 1, gamma the elastic modulus of the material of the main body pipe 1, and according to experimental determination, W the weight of an object at the lower end of the main body pipe 1, designing and determining, and s the stress area of the main body pipe 1.
The working principle and the beneficial effects of the technical scheme are as follows: practice thrift the cost under the condition of guaranteeing safety, choose suitable main part pipe 1 for use to be ignorable, through design demand and experimental data, calculate main part pipe 1 thinnest wall thickness, and then suitably select main part pipe 1.
Example 5
On the basis of the above embodiment 1, the present invention further includes a connection state detection device for the threaded connection section 302, where the connection state detection device for the threaded connection section 302 includes:
the temperature sensor is arranged on the drainage plate 2 and used for detecting the temperature of the environment around the drainage plate 2;
the humidity sensor is arranged on the drainage plate 2 and used for detecting the relative humidity of the environment around the drainage plate 2;
the force sensor is arranged at the lower end of the wire clamp main body 301 and used for detecting the force of a wire rod suspended at the lower end of the wire clamp main body 301 on the wire clamp main body 301;
the timer is arranged on the drainage plate 2 and used for detecting the service time of the threaded connection section 302 in a working environment;
the signal transmitter is positioned on the drainage plate 2 and is connected with a signal receiver of the monitoring terminal;
the controller, the controller respectively with temperature sensor, humidity transducer, force sensor and signal transmitter electric connection, the controller is based on temperature sensor, humidity transducer, force sensor control signal transmitter work includes:
step 1: the controller obtains an index of the connection state of the threaded connection section 302 affected by the environment based on the temperature sensor, the humidity sensor and a formula (1):
Figure GDA0003320294090000111
wherein,
Figure GDA0003320294090000112
the connection state of the threaded connection section 302 is subjected to an environmental influence index, K is the temperature of the environment detected by the temperature sensor, K0Is absolute zero degree, N is the relative humidity of the environment detected by the humidity sensor, alpha is the opening angle of the thread of the threaded connection section 302, t is the service time of the threaded connection section 302 in the working environment recorded by the timer, t is the service time of the threaded connection section 302 in the working environment0Is a unit time, θThe bending angle of the first connection member 202, ω is the modulus of elasticity of the material of the threaded connection section 302,
Figure GDA0003320294090000113
is the yield strength of the material of the threaded connection section 302;
step 2: the controller calculates the threaded connection section 302 connection state index based on the force sensor and equation (2):
Figure GDA0003320294090000114
wherein W is an index of a connection state of the threaded connection section 302, F is a force of a wire suspended at the lower end of the wire clamp body 301 detected by the force sensor to the wire clamp body 301, m is a self weight of the wire clamp body 301, l is a thread pitch of the threaded connection section 302, D is an outer diameter of the threaded connection section 302, g is a gravitational acceleration, and pi is a circumferential rate;
when the connection state index of the threaded connection section 302 is reduced to the lowest usable range, the drainage wire clamp can be overheated under the rated load or the conductivity is influenced, so the controller controls the signal transmitter to transmit an alarm signal to the signal receiver so as to inform relevant maintenance personnel of maintenance, so that greater potential safety hazards are avoided.
The working principle and the beneficial effects of the technical scheme are as follows: a temperature sensor and a humidity sensor are provided on the flow guide plate 2 for detecting the temperature and humidity of the environment around the flow guide plate 2, an index of the connection state of the screw connection section 302 due to environmental influence is calculated by detecting the temperature and humidity of the environment around the flow guide plate 2 and equation (1), and at the same time, a force sensor is provided at the lower end of the clamp body 301 for detecting the force of the wire suspended at the lower end of the clamp body 301 against the clamp body 301, and then the index of the connection state of the screw connection section 302 is calculated according to the calculation result of equation (1), the force of the wire suspended at the lower end of the clamp body 301 against the clamp body 301 and equation (2), and when the index of the connection state of the screw connection section 302 falls to the lowest usable range, the controller controls a signal transmitter to transmit an alarm signal to the signal receiver, the device is used for informing relevant maintainers to overhaul, and the controller is arranged to control the signal transmitter to send an alarm signal, so that the relevant maintainers are reminded of overhauling, replacing and processing abnormity in time, and the safety of the device is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a suspension type drainage fastener for distribution lines for connect strain clamp, strain clamp includes main part pipe (1), drainage plate (2), its characterized in that: the drainage plate (2) is sleeved on the main body pipe (1), the drainage wire clamp (3) is connected to the drainage plate (2) through a fastening bolt (4), and the tail end of the fastening bolt (4) is fastened through a nut (5);
the drainage plate (2) comprises a mounting hole position (201), a first connecting piece (202), a mounting pipe (203), a fastening plane (204), a first bolt hole (205) and a wire clamp mounting hole (206);
the first connecting piece (202) is of a bent plate-shaped structure, one end of the first connecting piece (202) is provided with an installation hole (201), the other end of the first connecting piece is fixed with the installation pipe (203), and the main pipe (1) is sleeved in the installation hole (201);
the mounting pipe (203) is of a hollow tubular structure, the wire clamp mounting hole (206) is formed in the mounting pipe, the fastening plane (204) is symmetrically arranged on the outer wall of the mounting pipe (203), a first bolt hole (205) is formed in the fastening plane (204), and the first bolt hole (205) penetrates through the mounting pipe (203);
the inner surface of the wire clamp mounting hole (206) is provided with threads;
still be provided with locking device (6) outward in nut (5), locking device (6) are fixed in fastening plane (204), locking device (6) include:
the device comprises an adjusting bolt (601), a first balance plate (602), an adjusting cavity (603), a spring (604), a second balance plate (605), a first limiting tooth (606), a second limiting tooth (607), a through hole (608), a fixing plate (609), a limiting fixing shell (610), a clamping section (611), a ratchet wheel (612), a bolt limiting piece (613), a bolt limiting cavity (614), a spring tube (615) and a ratchet (616);
the adjusting cavity (603) is fixed on the fastening plane (204), one side of the adjusting cavity (603) is provided with the adjusting bolt (601), the adjusting bolt (601) is connected with the wall of the adjusting cavity (603) through threads, and the tail end of the adjusting bolt (601) penetrates through the wall of the adjusting cavity (603) and is hinged to one side of the first balance plate (602);
one end of the spring (604) is fixed to the other side of the first balance plate (602), the other end of the spring is fixed to one side of the second balance plate (605), the other side of the second balance plate (605) is fixed with the first limiting tooth (606), and the first limiting tooth (606) is meshed with the second limiting tooth (607) fixed to the fixing plate (609);
the first balance plate (602), the spring (604), the second balance plate (605), the first limit tooth (606) and the second limit tooth (607) are all positioned in the adjusting cavity (603);
the fixing plate (609) penetrates through the adjusting cavity (603) and is fixed on the limiting fixing shell (610), a through hole (608) is formed in the upper surface of the limiting fixing shell (610), the clamping section (611) is hinged to the inner side of the limiting fixing shell (610), and two ends of the spring tube (615) are hinged to the middle position of the clamping section (611) and the inner side of the limiting fixing shell (610) respectively;
the bolt limiting piece (613) is arranged in the limiting and fixing shell (610), the outer periphery of the bolt limiting piece (613) is fixed to the ratchet wheel (612), the ratchet teeth (616) are arranged on the outer periphery of the ratchet wheel (612), the ratchet teeth (616) are meshed with the clamping section (611), the inner periphery of the bolt limiting piece (613) is provided with the bolt limiting cavity (614), and the bolt limiting cavity (614) is communicated with the through hole (608).
2. The suspended current-conducting clamp for distribution lines of claim 1, wherein: the drainage wire clamp (3) comprises a wire clamp main body (301), a threaded connecting section (302) and a second bolt hole (303);
the wire clamp main body (301) is fixed with the threaded connecting section (302), a second bolt hole (303) is formed in the threaded connecting section (302), and the second bolt hole (303) penetrates through the threaded connecting section (302);
the surface of the threaded connection section (302) is provided with threads.
3. The suspended current-conducting clamp for distribution lines of claim 2, wherein: the threaded connection section (302) is in threaded connection with the mounting pipe (203), the second bolt hole (303) is aligned with the first bolt hole (205), the fastening bolt (4) penetrates through the first bolt hole (205) and the second bolt hole (303), and the head of the fastening bolt (4) and the nut (5) are both in contact with the fastening plane (204).
4. The suspended current-conducting clamp for distribution lines of claim 1, wherein: still be provided with stop device (7) on main part pipe (1), stop device (7) are located drainage plate (2) both sides, stop device (7) include:
the device comprises a first threaded pipe (701), a first limiting block (702), a first linkage piece (703), a second threaded pipe (704), a second limiting block (705), a second linkage piece (706) and a second connecting piece (707);
the first threaded pipe (701) and the second threaded pipe (704) are sleeved outside the main body pipe (1), the first threaded pipe (701) and the second threaded pipe (704) are fixed with the main body pipe (1), threads are arranged on the peripheries of the first threaded pipe (701) and the second threaded pipe (704), and the first threaded pipe (701) and the second threaded pipe (704) are located on two sides of the drainage plate (2);
a first limiting block (702) is fixed on the periphery of one end, away from the drainage plate (2), of the first threaded pipe (701), a first linkage piece (703) is arranged between the first limiting block (702) and the drainage plate (2), the first linkage piece (703) is in threaded connection with the first threaded pipe (701), and the first linkage piece (703) is fixed on one side of the drainage plate (2);
a second limiting block (705) is fixed on the periphery of one end, away from the drainage plate (2), of the second threaded pipe (704), a second linkage piece (706) is arranged between the second limiting block (705) and the drainage plate (2), the second linkage piece (706) is in threaded connection with the second threaded pipe (704), the second linkage piece (706) is fixed on the other side of the drainage plate (2), and the thread direction of the periphery of the second threaded pipe (704) is opposite to that of the first threaded pipe (701);
and a second connecting piece (707) is fixed at the lower ends of the first linking piece (703) and the second linking piece (706), and the second connecting piece (707), the first linking piece (703) and the second linking piece (706) surround the drainage plate (2).
5. The suspended current-conducting clamp for distribution lines of claim 1, wherein: the thinnest wall thickness of the main pipe (1) can be calculated by the following formula:
Figure FDA0003320294080000041
wherein D isminThe method is characterized in that the thickness of the thinnest wall of the main body pipe (1) is defined, L is the length of the main body pipe (1), the design is determined, omega is the Poisson's ratio of the material of the main body pipe (1), gamma is the elastic modulus of the material of the main body pipe (1), the experiment is determined, W is the weight of an object at the lower end of the main body pipe (1), the design is determined, and s is the stressed area of the main body pipe (1).
6. The suspended current-conducting clamp for distribution lines of claim 2, wherein: still include threaded connection section (302) connection status detection device, threaded connection section (302) connection status detection device includes:
the temperature sensor is arranged on the drainage plate (2) and used for detecting the temperature of the environment around the drainage plate (2);
the humidity sensor is arranged on the drainage plate (2) and used for detecting the relative humidity of the environment around the drainage plate (2);
a force sensor arranged at the lower end of the clamp body (301) and used for detecting the force of a wire rod suspended at the lower end of the clamp body (301) on the clamp body (301);
the timer is arranged on the drainage plate (2) and used for detecting the service time of the threaded connection section (302) in a working environment;
the signal transmitter is positioned on the drainage plate (2) and is connected with a signal receiver of the monitoring terminal;
the controller, the controller respectively with temperature sensor, humidity transducer, force sensor and signal transmitter electric connection, the controller is based on temperature sensor, humidity transducer, force sensor control signal transmitter work includes:
step 1: the controller obtains an index of the connection state of the threaded connection section (302) affected by the environment based on the temperature sensor, the humidity sensor and a formula (1):
Figure FDA0003320294080000051
wherein,
Figure FDA0003320294080000052
the connection state of the threaded connection section (302) is subjected to an environmental influence index, K is the temperature of the environment detected by the temperature sensor, K0Is absolute zero degree, N is the relative humidity of the environment detected by the humidity sensor, alpha is the opening angle of the thread of the threaded connection section (302), and t is the use of the threaded connection section (302) in the working environment recorded by the timerTime, t0-theta is the bending angle of the first connection (202) per unit time, -omega is the modulus of elasticity of the material of the threaded connection section (302),
Figure FDA0003320294080000054
is the yield strength of the material of the threaded connection section (302);
step 2: the controller calculates the threaded connection segment (302) connection state index based on the force sensor and equation (2):
Figure FDA0003320294080000053
wherein W is the connection state index of the threaded connection section (302), F is the force of a wire rod suspended at the lower end of the wire clamp main body (301) on the wire clamp main body (301) detected by the force sensor, m is the self weight of the wire clamp main body (301), l is the thread pitch of the threaded connection section (302), D is the outer diameter of the threaded connection section (302), g is the gravity acceleration, and pi is the circumferential rate;
when the connection state index of the threaded connection section (302) is reduced to the lowest usable range, the drainage wire clamp can be overheated under the rated load or the conductivity problem is influenced, so the controller controls the signal transmitter to transmit an alarm signal to the signal receiver so as to inform related maintenance personnel of maintenance, so that the larger potential safety hazard is avoided.
CN202110610573.6A 2021-06-01 2021-06-01 Suspension type drainage fastener for distribution lines Active CN113315067B (en)

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CN115102120A (en) * 2022-08-10 2022-09-23 福建永福电力设计股份有限公司 Novel insulated wire fixing clamp

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN207098537U (en) * 2017-06-07 2018-03-13 浙江至简电气科技有限公司 A kind of non-maintaining strain clamp
CN108631245A (en) * 2017-03-16 2018-10-09 徐州宇飞电力科技有限公司 A kind of power transmission line intelligent thermometric strain clamp
CN112573284A (en) * 2020-12-18 2021-03-30 国网河南省电力公司方城县供电公司 Power cable laying device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108631245A (en) * 2017-03-16 2018-10-09 徐州宇飞电力科技有限公司 A kind of power transmission line intelligent thermometric strain clamp
CN207098537U (en) * 2017-06-07 2018-03-13 浙江至简电气科技有限公司 A kind of non-maintaining strain clamp
CN112573284A (en) * 2020-12-18 2021-03-30 国网河南省电力公司方城县供电公司 Power cable laying device

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Effective date of registration: 20220308

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Denomination of invention: A hanging drain clamp for distribution line

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