CN218101713U

CN218101713U - Temperature warning structure for splicing fitting of power transmission and distribution line

Info

Publication number: CN218101713U
Application number: CN202222131693.0U
Authority: CN
Inventors: 吴锐志
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-20
Anticipated expiration: 2032-08-12

Abstract

The utility model provides a temperature warning structure used at the connection hardware of a power transmission and distribution line, which comprises a temperature warning nut and a connecting steel belt; the bottom surface of the nut body of the temperature warning nut is provided with an insertion hole and a through hole, the insertion hole and the through hole are symmetrically arranged relative to the axis of the nut body, the top end of the insertion hole is blocked, and the top end of the through hole extends to the top surface of the nut body; the nut body is provided with countersunk holes corresponding to the jack and the side wall of the through hole, one end of the connecting steel strip is inserted into the jack and is fixed through the screw, and the other end of the connecting steel strip can be bent to penetrate through the through hole and is fixed through the screw, so that the connecting steel strip is bent to form a binding part for binding at a splicing fitting; its novel structure, accessible threaded connection complex mode is applied to the gold utensil department that continues of taking bolted construction, also can be applied to the gold utensil department that continues of not taking bolted construction through the mode of ligature, and the adaptation effectively improves suitability and practicality in the different gold utensil structures that continues.

Description

Temperature warning structure for splicing fitting of power transmission and distribution line

Technical Field

The utility model relates to a power transmission and distribution lines temperature warning structure field, more specifically relates to a temperature warning structure that is used for power transmission and distribution lines gold utensil department of continuing.

Background

Along with the increase of social electricity demand, the operation load of the power line is larger and larger, and due to the construction process, atmospheric corrosion, vibration and the like of the power line, the temperature rise abnormality is easily generated at the joint of the splicing hardware because the contact resistance is increased due to the loosening of bolts, insufficient contact pressure, oxidation corrosion of contact surfaces and the like; the long-term abnormal operation of temperature rise can cause the oxidative corrosion of the contact surface to be aggravated, the contact pressure can be further released after the temperature reaches a metal soft point, and the contact resistance is rapidly increased to finally ablate and blow an electrical connection point; the faults caused by the splicing fittings are often unrepairable, and a large amount of time and labor cost are required to be invested for rush repair, so that the faults are key factors influencing the safe and stable operation of the power grid; therefore, it is necessary to monitor the operating temperature of the power line connection fitting for a long time.

At present, an unmanned helicopter, a multi-rotor unmanned aerial vehicle and a handheld infrared thermometer with an infrared temperature measurement function are mainly used for monitoring the running temperature state of the power line connecting hardware fitting, the temperature measurement needs to be carried out at high line load and at night, but the temperature measurement of an infrared thermal imager is greatly influenced by the environment, cannot be carried out under various meteorological conditions, is relatively troublesome to operate and is inconvenient for practical application;

a patent (CN 108917975A) discloses an overtemperature warning nut, which comprises a nut, a temperature sensing glass ball fixed at the top end of the nut, a terminal whose bottom end is fixedly connected with the top end of the temperature sensing glass ball, a spring cover, a pull rod, a pressure spring and a warning belt; the terminal is in a cylindrical shape with an open top end and a closed bottom end, and a through hole is formed in the bottom end of the terminal; the spring cover covers the opening at the top end of the terminal and penetrates through the through hole through the pull rod to be fixedly connected with the temperature sensing glass ball; the pressure spring is arranged in the terminal, and two ends of the pressure spring are respectively connected/contacted with the spring cover and the bottom end of the terminal; two ends of the warning belt are respectively connected with the spring cover and the inner wall of the terminal; the overtemperature warning nut disclosed by the invention can play a role in fastening a bolt and overtemperature warning at the same time, has no influence on equipment, eliminates potential safety hazards and has strong applicability.

Although the overtemperature warning nut can monitor the temperature and warn the overtemperature condition, the overtemperature warning nut has an obvious limitation that the overtemperature warning nut needs to be fastened by bolts; however, in the practical application process, such as a wire splicing sleeve, a cable middle head or on a running wire, the installation condition of the overtemperature warning nut is not met, and the splicing fitting part cannot be monitored, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect of the prior art, the utility model aims to solve the technical problem that a temperature warning structure for transmission and distribution lines gold utensil department that continues is proposed, its novel structure, accessible threaded connection complex mode is applied to the gold utensil department that continues of taking bolt structure, and the gold utensil department that continues of not taking bolt structure is applied to the mode that also can pass through the ligature, and the adaptation effectively improves suitability and practicality in the different gold utensil structure that continues.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a temperature warning structure for the connection hardware fitting of a power transmission and distribution line, which comprises a temperature warning nut and a connecting steel belt; the bottom surface of the nut body of the temperature warning nut is provided with an insertion hole and a through hole, the insertion hole and the through hole are symmetrically arranged relative to the axis of the nut body, the top end of the insertion hole is blocked, and the top end of the through hole extends through the top surface of the nut body; the nut body corresponds jack and fenestrate lateral wall and has all seted up the counter bore, and the one end of connecting the steel band inserts in the jack, and passes through the fix with screw, and the other end of connecting the steel band can be buckled to running through the perforation, and pass through the fix with screw for it is crooked formation ligature portion, is used for the ligature to be in the gold utensil department of continuing to connect the steel band.

In the preferred technical scheme of the utility model, one end of the connecting steel belt is provided with a group of first through holes, and the region from the other end of the connecting steel belt to the central position is provided with a plurality of groups of second through holes; when one end of the connecting steel belt is inserted into the jack, the first through hole corresponds to the countersunk hole, and the connecting steel belt is fixed through a screw penetrating through the first through hole; the multiple groups of second through holes are distributed in a linear array along the length direction of the connecting steel belt, and when the other end of the connecting steel belt is inserted into the through hole, the second through holes correspond to the counter sink and the connecting steel belt can be fixed through screws penetrating through the second through holes.

In the preferred technical solution of the present invention, the group of first through holes includes two first through holes, the group of second through holes includes two second through holes, and the distance between the two first through holes is the same as the distance between the two second through holes of the same group; the number of the counter bores on the same side wall of the nut body is 2, and the positions of the two counter bores correspond to the positions of the two first through holes.

The utility model discloses among the technical scheme of preferred, the distance length of the axis of counter sink to the perforation top is the integral multiple of the array interval length of second through-hole.

The utility model discloses among the technical scheme of preferred, the tip that first through-hole was kept away from to the steel band is equipped with many identification strips in the region that central point put, and the identification strip extends along the width direction who connects the steel band, and many identification strips set up along the even interval of length direction who connects the steel band, and the position of identification strip corresponds with the position of multiunit second through-hole, the identification strip runs through from the centre of a circle department of two second through-holes that correspond.

In the preferred technical scheme of the utility model, the temperature warning nut comprises a nut body, a spring, a pressing sheet and a warning strip; a partition board is fixedly arranged in the hole of the nut, the partition board divides the inner hole of the nut into an accommodating hole and a threaded hole, the spring is arranged in the accommodating hole, the bottom end of the spring is fixedly welded with the top surface of the partition board, and the natural extension length of the spring is greater than the depth of the accommodating hole under the condition that the spring is not subjected to external force; an inserting rod is fixedly arranged in the middle of the bottom surface of the pressing piece, a third through hole is formed in the middle of the partition plate, the diameter of the third through hole is matched with that of the inserting rod, the bottom end of the inserting rod penetrates through the partition plate through the through hole and is welded at the joint through melting point constant value alloy, and the pressing piece abuts against the top surface of the nut at the moment to enable the spring to be compressed and accommodated in the accommodating hole; one end of the warning strip is fixedly connected to the top surface of the partition plate, and the other end of the warning strip is connected to the bottom surface of the pressing sheet.

The utility model has the advantages that:

the utility model provides a temperature warning structure for the connection hardware fitting of a power transmission and distribution line, which has novel structure and comprises a temperature warning nut and a connecting steel belt; the temperature warning nut can be applied to a splicing fitting with a bolt structure in a threaded connection matching mode and is suitable for a structure for fixing the splicing fitting through a bolt;

also can all fix on the temperature warning nut through the both ends of buckling connection steel band, messenger's connection steel band to, form ligature portion, be applied to the gold utensil department that continues that does not take bolt construction through the mode of ligature, be applicable to the structure that does not pass through bolt fastening of gold utensil department that continues, but the adaptation effectively improves suitability and practicality in the different gold utensil structure that continues.

Drawings

Fig. 1 is a front view of a temperature warning structure for a connection fitting of a power transmission and distribution line provided in an embodiment of the present invention;

fig. 2 is a side view of a temperature warning structure for a power transmission and distribution line splicing fitting provided in an embodiment of the present invention;

fig. 3 is a front cross-sectional view of a temperature warning structure for a connection fitting of a power transmission and distribution line provided in an embodiment of the present invention;

fig. 4 is a front cross-sectional view of a temperature warning nut provided in an embodiment of the present invention;

fig. 5 is a first cross-sectional view of a temperature warning structure for a power transmission and distribution line splicing fitting provided in an embodiment of the present invention in a binding state;

fig. 6 is a first cross-sectional view of a temperature warning structure for a power transmission and distribution line splicing fitting provided in an embodiment of the present invention in a binding state;

fig. 7 is a schematic diagram of the temperature warning structure for the power transmission and distribution line splicing fitting provided in the embodiment of the present invention after triggering warning in the binding state;

in the figure:

100. a temperature warning nut; 110. a nut body; 111. a jack; 112. perforating; 113. a countersunk hole; 120. a spring; 130. tabletting; 131. a rod is inserted; 140. a warning strip; 141. color cloth strips; 142. an iron ring; 150. a partition plate; 160. a constant melting point alloy; 200. connecting the steel belts; 210. a marking strip; 220. a second via.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

As shown in fig. 1 to 7, an embodiment of the present invention discloses a temperature warning structure for a power transmission and distribution line splicing fitting, which includes a temperature warning nut 100 and a connecting steel band 200; the bottom surface of the nut body 110 of the temperature warning nut 100 is provided with an insertion hole 111 and a through hole 112, the insertion hole 111 and the through hole 112 are symmetrically arranged about the axis of the nut body 110, the top end of the insertion hole 111 is sealed, and the top end of the through hole 112 extends through to the top surface of the nut body 110; the nut body 110 is provided with countersunk holes 113 corresponding to the side walls of the insertion holes 111 and the through holes 112, one end of the connecting steel strip 200 is inserted into the insertion holes 111 and fixed through screws, and the other end of the connecting steel strip 200 can be bent to penetrate through the through holes 112 and fixed through screws, so that the connecting steel strip is bent to form a binding part for binding at a splicing fitting.

The temperature warning structure for the power transmission and distribution line splicing fitting is novel in structure and comprises a temperature warning nut and a connecting steel strip; the temperature warning nut can be applied to a splicing fitting with a bolt structure in a threaded connection matching mode and is suitable for a structure which is fixed at the splicing fitting through a bolt; in addition, as the countersunk structure is adopted, the clamping of an external tool on the nut body is not influenced, so that the screwing and the fixing are convenient;

as shown in fig. 5 to 6, also can be through buckling the connection steel band, make the both ends of connecting the steel band all fix on the temperature warning nut to, form ligature portion, be applied to the gold utensil department that continues who does not take bolt structure through the mode of ligature, be applicable to the structure that gold utensil department that continues does not pass through bolt fastening, but the adaptation effectively improves suitability and practicality in the different gold utensil structure that continues.

Further, as shown in fig. 4, chamfers are provided at the port edge of the insertion hole 111 and the port edges at both ends of the through hole 112, so that the insertion of the connecting steel strip is facilitated; the edge of the connecting steel belt is provided with a chamfer angle, so that the human body is prevented from being scratched when the connecting steel belt is used, and the connecting steel belt can be conveniently and smoothly inserted into the jack and the perforation.

Furthermore, the connecting steel belt is of a stainless steel belt structure, and can be applied to outdoor environment to prevent the connecting steel belt from being easily rusted and damaged; and the thickness is 0.8 mm-1.5 mm, thus ensuring certain structural strength and maintaining the required bending elasticity.

Further, one end of the connecting steel belt 200 is provided with a group of first through holes, and a plurality of groups of second through holes 220 are formed in the region from the other end of the connecting steel belt 200 to the central position; when one end of the connecting steel belt 200 is inserted into the jack 111, the first through hole corresponds to the countersunk hole, and the connecting steel belt is fixed through a screw penetrating through the first through hole; fixing one end of the connecting steel belt to be used as a basic fixing end;

the plurality of groups of second through holes 220 are distributed in a linear array along the length direction of the connecting steel strip 200, and when the other end of the connecting steel strip 200 is inserted into the through hole 112, the second through holes correspond to the counter sink in position and the connecting steel strip can be fixed by screws penetrating through the second through holes; the design of multiunit second through-hole can insert different degree of depth according to the demand and fix after to satisfy the requirement of different ligature position sizes, thereby form fixed erection joint, prevent to loosen and take off.

Furthermore, the group of first through holes comprises two first through holes, the group of second through holes comprises two second through holes, and the distance between the two first through holes is consistent with the distance between the two second through holes in the same group; the number of the counter bores 113 on the same side wall of the nut body 110 is 2, and the positions of the two counter bores correspond to the positions of the two first through holes; the group of second through holes comprises two second through holes, so that on one hand, the connection between the connecting steel belt and the nut body is strengthened, and the loosening is effectively prevented; on the other hand, the structural strength of the connecting steel strip can be weakened, and the connecting steel strip can be conveniently bent along the position of the second through hole.

Further, the distance length from the axis of the counter sink 113 to the top end of the through hole 112 is an integral multiple of the array pitch length of the second through holes 220; the structural design can facilitate the alignment of the second through holes and the counter bores, when the connecting steel belt exceeds the through holes and the top ends of the through holes correspond to one group of second through holes, the second through holes correspond to the counter bores, so that the insertion and the installation of screws are facilitated, and the installation of the connecting steel belt is further completed;

furthermore, a plurality of identification strips 210 are arranged in an area, far away from the end part of the first through hole, of the connecting steel strip 200 to the central position, extend along the width direction of the connecting steel strip, and are uniformly arranged at intervals along the length direction of the connecting steel strip, the positions of the identification strips correspond to the positions of the plurality of groups of second through holes, and the identification strips 210 penetrate through the centers of the corresponding two second through holes 220; the identification strip 210 is printed by dye, and can be used for identifying the inserted position and better displaying the corresponding position; specifically, when the end of the connecting steel strip exceeds the through hole and the identification strip corresponds to the edge of the top end of the through hole, the position of the second through hole corresponds to the position of the countersunk hole at the through hole, so that the screw can be conveniently installed and fixed, and the connecting steel strip can be stably installed;

more specifically, after the approximate position is matched, the excessive part can be bent, and due to the reset elasticity of the connecting steel strip, the force of pulling back can be formed, so that the bent part is abutted against the nut body, and the connecting steel strip can be conveniently loosened by a worker to be convenient to install and fix the screw.

Further, as shown in fig. 4, the temperature warning nut 100 includes a nut body 110, a spring 120, a pressing sheet 130, and a warning strip 140; a partition plate 150 is fixedly arranged in the hole of the nut 110, the partition plate divides the inner hole of the nut into a containing hole and a threaded hole, the spring 120 is arranged in the containing hole, the bottom end of the spring 120 is fixedly welded with the top surface of the partition plate 150, and the natural extension length of the spring is larger than the depth of the containing hole under the condition that the spring is not subjected to external force; an inserting rod 131 is fixedly arranged in the middle of the bottom surface of the pressing sheet 130, a third through hole is formed in the middle of the partition plate 150, the diameter of the third through hole is matched with that of the inserting rod, the bottom end of the inserting rod 131 penetrates through the partition plate through the through hole and is welded at the joint through a melting point constant value alloy 160, and the pressing sheet abuts against the top surface of the nut at the moment to enable the spring to be compressed and accommodated in the accommodating hole; one end of the warning strip 140 is fixedly connected to the top surface of the partition 150, and the other end is connected to the bottom surface of the pressing sheet 130;

the bottom end of the inserted rod penetrates through the partition plate and is fixed at the penetrating connection part through the melting point constant value alloy, so that pressure is applied to the spring, and the spring is accommodated in the accommodating hole; moreover, as the connection part is connected by adopting the melting point constant alloy, when the temperature of the outside rises, the temperature can be transmitted to the melting point constant alloy part, and the temperature of the melting point constant alloy part also rises to a constant temperature, the melting point constant alloy melts, the inserted link is separated from the jack, the force applied to the spring is removed, the spring resets and bounces, so that the warning strip is bounced out of the outside, and the temperature warning effect can be achieved through visual checking of the outside;

it should be noted that, multi-stage temperature warning can be performed according to the fixed value melting temperature of the melting point fixed value alloy, and the melting point fixed value alloys with different melting temperatures correspond to warning strips with different colors; if the temperature is 70 ℃ which is the general design operation temperature-blue, the temperature is 120 ℃ which is the yellow-color of the design operation temperature of a certain heat-resistant wire splicing fitting I, the temperature is 180 ℃ which is the danger threshold value-red which is close to the alloy soft point temperature, and the like, corresponding design and adjustment are carried out according to different use requirements;

moreover, the insert rod, the third through hole and the melting point constant alloy are matched to form a heating triggering mechanism, the heating triggering mechanism is arranged at the threaded hole, especially when the temperature warning nut is applied to a splicing fitting with a bolt structure, the bolt can be inserted into the threaded hole and can be abutted against the insert rod, the temperature can be better transmitted to the melting point constant alloy, and quick response is formed; when binding and fixing are carried out through the connecting steel strip, the temperature can be smoothly transmitted to the melting point constant value alloy part along the nut body and the partition plate, although the response is slow, the normal warning work is not influenced.

Furthermore, the bottom end side wall of the insertion rod is provided with an embedded groove, the embedded groove is of a closed ring structure around the axis of the insertion rod, and the melting point constant alloy is clamped into the embedded groove to form stable connection.

Further, the warning strip 140 comprises a colored cloth strip 141, two ends of the colored cloth strip are sewn and coated with iron rings 142, one end of the warning strip is fixed on the top surface of the partition plate through screws penetrating through the iron rings, and the other end of the warning strip is fixed on the bottom surface of the pressing sheet through screws penetrating through the iron rings; and the assembled structure is adopted, so that the processing and production of each part are facilitated, and the subsequent assembly can be facilitated.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not intended to be limited to the specific embodiments disclosed herein, and other embodiments that are within the scope of the present invention are intended to be within the claims of this application.

Claims

1. The utility model provides a temperature warning structure that is used for transmission and distribution lines gold utensil department of continuing which characterized in that:

comprises a temperature warning nut and a connecting steel belt;

the bottom surface of the nut body of the temperature warning nut is provided with an insertion hole and a through hole, the insertion hole and the through hole are symmetrically arranged relative to the axis of the nut body, the top end of the insertion hole is blocked, and the top end of the through hole extends through the top surface of the nut body; the nut body corresponds jack and fenestrate lateral wall and has all seted up the counter bore, and the one end of connecting the steel band inserts in the jack, and passes through the fix with screw, and the other end of connecting the steel band can be buckled to running through the perforation, and pass through the fix with screw for it is crooked formation ligature portion, is used for the ligature to be in the gold utensil department of continuing to connect the steel band.

2. The temperature warning structure for the power transmission and distribution line splicing fitting according to claim 1, wherein:

one end of the connecting steel belt is provided with a group of first through holes, and the area from the other end of the connecting steel belt to the central position is provided with a plurality of groups of second through holes;

when one end of the connecting steel belt is inserted into the jack, the first through hole corresponds to the countersunk hole, and the connecting steel belt is fixed through a screw penetrating through the first through hole;

the multiple groups of second through holes are distributed in a linear array along the length direction of the connecting steel belt, and when the other end of the connecting steel belt is inserted into the through hole, the second through holes correspond to the counter sink and the connecting steel belt can be fixed through screws penetrating through the second through holes.

3. The temperature warning structure for the power transmission and distribution line splicing fitting according to claim 2, characterized in that:

the group of first through holes comprises two first through holes, the group of second through holes comprises two second through holes, and the distance between the two first through holes is consistent with the distance between the two second through holes in the same group;

the number of the counter bores on the same side wall of the nut body is 2, and the positions of the two counter bores correspond to the positions of the two first through holes.

4. The temperature warning structure for the power transmission and distribution line splicing fitting according to claim 3, wherein:

the distance length from the axis of the counter bore to the top end of the through hole is integral multiple of the array pitch length of the second through hole.

5. The temperature warning structure for the power transmission and distribution line splicing fitting according to claim 4, wherein:

the tip that first through-hole was kept away from to the steel band is equipped with many sign strips in the region that central point put, and the sign strip extends along the width direction who connects the steel band, and many sign strips set up along the even interval of length direction who connects the steel band, and the position of sign strip corresponds with the position of multiunit second through-hole, the centre of a circle department of sign strip from two second through-holes that correspond runs through.

6. The temperature warning structure for the power transmission and distribution line splicing fitting according to claim 1, wherein:

the temperature warning nut comprises a nut body, a spring, a pressing sheet and a warning strip;

a partition plate is fixedly arranged in a hole of the nut, the partition plate divides the inner hole of the nut into a containing hole and a threaded hole, the spring is arranged in the containing hole, the bottom end of the spring is fixedly welded with the top surface of the partition plate, and the natural telescopic length of the spring is larger than the depth of the containing hole under the condition that the spring is not subjected to external force;

an insert rod is fixedly arranged in the middle of the bottom surface of the pressing piece, a third through hole is formed in the middle of the partition plate, the diameter of the third through hole is matched with that of the insert rod, the bottom end of the insert rod penetrates through the partition plate through the through hole and is welded at the joint through melting point fixed value alloy, and the pressing piece abuts against the top surface of the nut at the moment to enable the spring to be compressed and accommodated in the accommodating hole;

one end of the warning strip is fixedly connected to the top surface of the partition plate, and the other end of the warning strip is connected to the bottom surface of the pressing sheet.