阅读说明：本技术 断路器充气头快速固定工具 (Quick fixing tool for inflating head of circuit breaker ) 是由 任涛 陈曙东 吴昊 李娟� 姚伟 陈忠伟 杨新增 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种断路器充气头快速固定工具,包括第一夹紧机构、第二夹紧机构、第一伸缩机构、第二伸缩机构和手柄,所述第一伸缩机构与第二伸缩机构相对设置,且第一伸缩机构的活动端与第一夹紧机构的中部固定连接,第一伸缩机构的固定端与手柄的一侧固定连接,第二伸缩机构的活动端与第二夹紧机构的中部固定连接,第二伸缩机构的固定端与手柄的另一侧固定连接；第一夹紧机构和第二夹紧机构相配合,且第一夹紧机构和第二夹紧机构分别与断路器充气头的两侧相配合。本发明可大幅缩短安装充气头的工作时间,提高了工作效率；卤素气体传感器实现了对充气过程中SF6气体泄漏状况的实时监测,保障了作业人员的安全。(The invention discloses a quick fixing tool for an inflation head of a circuit breaker, which comprises a first clamping mechanism, a second clamping mechanism, a first telescopic mechanism, a second telescopic mechanism and a handle, wherein the first telescopic mechanism and the second telescopic mechanism are oppositely arranged, the movable end of the first telescopic mechanism is fixedly connected with the middle part of the first clamping mechanism, the fixed end of the first telescopic mechanism is fixedly connected with one side of the handle, the movable end of the second telescopic mechanism is fixedly connected with the middle part of the second clamping mechanism, and the fixed end of the second telescopic mechanism is fixedly connected with the other side of the handle; the first clamping mechanism is matched with the second clamping mechanism, and the first clamping mechanism and the second clamping mechanism are respectively matched with two sides of the inflating head of the circuit breaker. The invention can greatly shorten the working time for installing the inflation head and improve the working efficiency; the halogen gas sensor realizes real-time monitoring of SF6 gas leakage in the inflation process, and ensures the safety of operators.)

1. A quick fixing tool for an inflating head of a circuit breaker is characterized by comprising a first clamping mechanism (3), a second clamping mechanism (4), a first telescopic mechanism (1), a second telescopic mechanism (2) and a handle (5), wherein the first telescopic mechanism (1) and the second telescopic mechanism (2) are arranged oppositely, the movable end of the first telescopic mechanism (1) is fixedly connected with the middle of the first clamping mechanism (3), the fixed end of the first telescopic mechanism (1) is fixedly connected with one side of the handle (5), the movable end of the second telescopic mechanism (2) is fixedly connected with the middle of the second clamping mechanism (4), and the fixed end of the second telescopic mechanism (2) is fixedly connected with the other side of the handle (5); the first clamping mechanism (3) is matched with the second clamping mechanism (4), and the first clamping mechanism (3) and the second clamping mechanism (4) are respectively matched with the inflating head and an inflating opening of the circuit breaker.

2. The quick fixing tool for the inflating head of the circuit breaker according to claim 1, wherein the first clamping mechanism (3) and the second clamping mechanism (4) are both semi-circular, and a placing groove is formed in the middle of each semi-circular; the upper end surface of the first clamping mechanism (3) is matched with the upper end surface of the second clamping mechanism (4), and the lower end surface of the first clamping mechanism (3) is matched with the lower end surface of the second clamping mechanism (4); and an inner inclined plane (8) or an outer inclined plane (9) is correspondingly arranged on the upper end surface and the lower end surface of the first clamping mechanism (3) and the upper end surface and the lower end surface of the second clamping mechanism (4), and the inner inclined plane (8) is matched with the outer inclined plane (9).

3. The quick fixing tool of the inflating head of the circuit breaker according to claim 2, characterized in that the first clamping mechanism (3) is detachably connected with the second clamping mechanism (4) through an automatic locking assembly; the automatic locking assembly comprises a clamping groove (10) and a clamping piece (11), the clamping groove (10) and the clamping piece (11) are correspondingly arranged on an inner inclined surface (8) and an outer inclined surface (9) respectively, and the corresponding clamping groove (10) is matched with the clamping piece (11).

4. The quick fixing tool for the inflating head of the circuit breaker according to claim 3, wherein the clamping member (11) comprises a clamping block and a spring, the spring is vertically arranged in the inner inclined surface (8) or the outer inclined surface (9), one end of the spring is fixedly connected with the bottom edge of the inner inclined surface (8) or the outer inclined surface (9), and the other end of the spring is fixedly connected with one side of the clamping block; the clamping block is arranged outside the inner inclined plane (8) or the outer inclined plane (9), and the other side of the clamping block is clamped with the clamping groove (10).

5. The quick fixing tool for the inflating head of the circuit breaker according to claim 1 or 4, wherein the handle (5) comprises a support frame (6) and a hollow handle (7), fixed ends of the first telescoping mechanism (1) and the second telescoping mechanism (2) are respectively fixedly connected with two sides of the support frame (6), and the handle (7) is fixedly arranged at the lower part of the support frame (6); a switch (14) is movably arranged outside the handle (7), a power supply and a control unit are fixedly arranged in the middle of the handle (7), and the switch (14) is electrically connected with the power supply; a distance measuring sensor is fixedly arranged at the end part of the first clamping mechanism (3) or the second clamping mechanism (4); the distance measuring sensor is electrically connected with the control unit, and the control unit is electrically connected with the power supply; the first telescopic mechanism (1) and the second telescopic mechanism (2) are electrically connected with a power supply through a switch (14), and the first telescopic mechanism (1) and the second telescopic mechanism (2) are electrically connected with the control unit.

6. The quick fixing tool for the inflating head of the circuit breaker according to claim 5, wherein a halogen gas sensor and an alarm unit are fixedly arranged in the middle of the handle (7), and are electrically connected with the control unit; the lower part of the handle (7) is provided with an air outlet (13), the upper part of the handle (7) is provided with an air hole, and the air hole corresponds to the through hole (12) in the middle of the support frame (6); filter screens are fixedly arranged in the air holes and the through holes (12).

7. The tool for rapidly fixing the inflating head of the circuit breaker as claimed in claim 6, wherein the alarm unit comprises a buzzer, and the buzzer is electrically connected with a power supply through a control unit.

8. The quick fixing tool for the inflating head of the circuit breaker according to claim 6 or 7, wherein the first telescoping mechanism (1) and the second telescoping mechanism (2) comprise micro linear push rods, the push rods of the two micro linear push rods are respectively and fixedly connected with the middle parts of the first clamping mechanism (3) and the second clamping mechanism (4), and the fixing seats of the two micro linear push rods are respectively and fixedly connected with the two sides of the supporting frame (6).

Technical Field

The invention belongs to the technical field of circuit breaker connectors, and particularly relates to a quick fixing tool for an inflating head of a circuit breaker.

Background

The high-voltage circuit breaker is the most important control and protection equipment in power plants, substations and transformation equipment, and is used for controlling and ensuring the safe operation of a power system. Distribution, transmission, connection and disconnection of electric energy can be realized by controlling and switching a high voltage circuit breaker, and since SF6 gas has many excellent electrical insulation and arc extinguishing properties compared to other types of gas and transformer oil, SF6 puffer circuit breakers have been widely used in recent years.

However, when the sulfur hexafluoride gas in the SF6 circuit breaker is used up or used for a long time, the sulfur hexafluoride gas needs to be replaced by new sulfur hexafluoride gas, and therefore, the maintenance personnel need to perform activities on the circuit breaker charging frequently. Need demolish the inflation inlet protective cover when normally aerifing, connect and aerify the head and carry out the fixed back of bolt one by one, can aerify, and it is consuming time more to influence work efficiency. In addition, the pure SF6 has low toxicity and stable properties, but limbs are numb and slight excitation symptoms can appear after a person inhales the mixed gas of 80% SF6 and 20% O2. Therefore, the maintainer urgently needs a new tool, namely, the inflation head can be simply and conveniently connected, and the whole inflation process can be monitored.

Disclosure of Invention

Aiming at the problems that an SF6 circuit breaker is inconvenient to inflate, low in efficiency and SF6 gas possibly leaks in the inflation process, the invention provides a quick fixing tool for an inflation head of the circuit breaker, and solves the problems that bolts need to be locked one by one to fix the inflation joint when the inflation head is connected, and whether SF6 gas leaks or not needs to be continuously monitored in the inflation process.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

A quick fixing tool for an inflating head of a circuit breaker comprises a first clamping mechanism, a second clamping mechanism, a first telescopic mechanism, a second telescopic mechanism and a handle, wherein the first telescopic mechanism and the second telescopic mechanism are oppositely arranged, the movable end of the first telescopic mechanism is fixedly connected with the middle part of the first clamping mechanism, the fixed end of the first telescopic mechanism is fixedly connected with one side of the handle, the movable end of the second telescopic mechanism is fixedly connected with the middle part of the second clamping mechanism, and the fixed end of the second telescopic mechanism is fixedly connected with the other side of the handle; the movable ends of the first telescopic mechanism and the second telescopic mechanism push the first clamping mechanism and the second clamping mechanism to synchronously approach or depart from each other; the first clamping mechanism and the second clamping mechanism are matched, and the first clamping mechanism and the second clamping mechanism are respectively matched with the inflating port and the inflating head of the circuit breaker so as to fix the inflating port and the inflating head of the circuit breaker from two sides.

The first clamping mechanism and the second clamping mechanism are both in a semi-circular shape, a placing groove is arranged in the middle of the semi-circular shape, and the size of the placing groove is matched with the size of an inflating opening and an inflating head of the circuit breaker; the upper end face of the first clamping mechanism is matched with the upper end face of the second clamping mechanism, the lower end face of the first clamping mechanism is matched with the lower end face of the second clamping mechanism, and when the first clamping mechanism and the second clamping mechanism are close to each other, the placing groove of the first clamping mechanism and the placing groove of the second clamping mechanism are combined to form a placing cavity; the upper end face and the lower end face of the first clamping mechanism and the upper end face and the lower end face of the second clamping mechanism are correspondingly provided with inner inclined planes or outer inclined planes, and the inner inclined planes and the outer inclined planes are matched with each other to avoid SF6 gas leakage.

In order to better fix the first clamping mechanism and the second clamping mechanism, the first clamping mechanism is detachably connected with the second clamping mechanism through an automatic locking assembly; the automatic locking assembly comprises a clamping groove and a clamping piece, the clamping groove and the clamping piece are correspondingly arranged on the inner inclined surface and the outer inclined surface respectively, and the corresponding clamping groove and the clamping piece are matched.

The clamping piece comprises a clamping block and a spring, the spring is vertically arranged in the inner inclined plane or the outer inclined plane, one end of the spring is fixedly connected with the bottom edge of the inner inclined plane or the outer inclined plane, and the other end of the spring is fixedly connected with one side of the clamping block; the fixture block is arranged outside the inner inclined plane or the outer inclined plane, and the other side of the fixture block is clamped with the clamping groove.

The handle comprises a support frame and a hollow handle, the fixed ends of the first telescopic mechanism and the second telescopic mechanism are respectively and fixedly connected with the two sides of the support frame, and the handle is fixedly arranged at the lower part of the support frame; a switch is movably arranged outside the handle, a power supply and a control unit are fixedly arranged in the middle of the handle, and the switch is electrically connected with the power supply; a distance measuring sensor is fixedly arranged at the end part of the first clamping mechanism or the second clamping mechanism; the distance measuring sensor is electrically connected with the control unit, and the control unit is electrically connected with the power supply; the first telescopic mechanism and the second telescopic mechanism are electrically connected with the control unit, the first telescopic mechanism and the second telescopic mechanism are electrically connected with the power supply through the switch, and the control unit controls the first telescopic mechanism and the second telescopic mechanism to be opened simultaneously so as to control the first clamping mechanism and the second clamping mechanism to move synchronously.

The middle part of the handle is also fixedly provided with a halogen gas sensor for detecting SF6 gas leakage condition and an alarm unit for reminding, and the halogen gas sensor and the alarm unit are both electrically connected with the control unit; the lower part of the handle is provided with an air outlet, the upper part of the handle is provided with an air hole, and the air hole corresponds to the through hole in the middle part of the support frame; all fixedly being equipped with the filter screen in bleeder vent and the through-hole, the filter screen is arranged in carrying out impurity filtering to the air that gets into in the through-hole.

Alarm unit includes bee calling organ, bee calling organ passes through the control unit and is connected with the power electricity, and when the halogen gas sensor detected SF6 gas leakage, send signal and give the control unit, when the control unit was receiving leakage signal, the control unit opened bee calling organ promptly and warns the operating personnel.

The first telescopic mechanism and the second telescopic mechanism comprise miniature linear push rods, the push rods of the two miniature linear push rods are fixedly connected with the middle parts of the outer sides of the first clamping mechanism and the second clamping mechanism respectively, and the fixing seats of the two miniature linear push rods are fixedly connected with the two sides of the supporting frame respectively.

The invention has the beneficial effects that:

The first telescopic mechanism, the second telescopic mechanism, the first clamping mechanism and the second clamping mechanism are matched with each other to realize the quick fixation of the inflating head and the inflating port of the circuit breaker, thereby greatly shortening the working time, improving the working efficiency and reducing the working labor intensity of operators; the halogen gas sensor realizes real-time monitoring of SF6 gas leakage in the inflation process, not only ensures the safety of operators, but also avoids possible waste in the SF6 gas inflation process.

Drawings

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

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

Fig. 2 is a schematic diagram of the control principle of the present invention.

In the figure, 1 is a first telescopic mechanism, 2 is a second telescopic mechanism, 3 is a first clamping mechanism, 4 is a second clamping mechanism, 5 is a handle, 6 is a support frame, 7 is a handle, 8 is an inner inclined plane, 9 is an outer inclined plane, 10 is a clamping groove, 11 is a clamping piece, 12 is a through hole, 13 is an air outlet hole, and 14 is a switch.

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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

a quick fixing tool for an inflating head of a circuit breaker is shown in figure 1 and comprises a first clamping mechanism 3, a second clamping mechanism 4, a first telescopic mechanism 1, a second telescopic mechanism 2 and a handle 5, wherein the first telescopic mechanism 1 and the second telescopic mechanism 2 are oppositely arranged, the movable end of the first telescopic mechanism 1 is fixedly connected with the middle of the first clamping mechanism 3, the fixed end of the first telescopic mechanism 1 is fixedly connected with one side of the handle 5, the movable end of the second telescopic mechanism 2 is fixedly connected with the middle of the second clamping mechanism 4, and the fixed end of the second telescopic mechanism 2 is fixedly connected with the other side of the handle 5; the movable ends of the first telescopic mechanism 1 and the second telescopic mechanism 2 push the first clamping mechanism 3 and the second clamping mechanism 4 to synchronously approach or depart from each other; the first clamping mechanism 3 and the second clamping mechanism 4 are matched to form a cavity capable of fixing the first clamping mechanism 3 and the second clamping mechanism 4, and the first clamping mechanism 3 and the second clamping mechanism 4 are respectively matched with an inflation inlet and an inflation head of the circuit breaker to fix the inflation inlet and the inflation head of the circuit breaker from two sides.

The first clamping mechanism 3 and the second clamping mechanism 4 are both in a semi-circular shape, a placing groove is arranged in the middle of the semi-circular shape, and the size of the placing groove is matched with the size of an inflating opening and an inflating head of the circuit breaker; the upper end face of the first clamping mechanism 3 is matched with the upper end face of the second clamping mechanism 4, the lower end face of the first clamping mechanism 3 is matched with the lower end face of the second clamping mechanism 4, when the first clamping mechanism 3 and the second clamping mechanism 4 are close to each other, the placing groove of the first clamping mechanism 3 and the placing groove of the second clamping mechanism 4 are combined to form a placing cavity, and the inflating head and the inflating opening of the circuit breaker are fixed in the placing cavity; the upper end face and the lower end face of the first clamping mechanism 3 and the upper end face and the lower end face of the second clamping mechanism 4 are correspondingly provided with an inner inclined plane 8 or an outer inclined plane 9, and the inner inclined plane 8 and the outer inclined plane 9 are mutually matched to avoid SF6 gas from leaking from the connection position of the first clamping mechanism 3 and the second clamping mechanism 4.

In order to better fix the first clamping mechanism 3 and the second clamping mechanism 4, the first clamping mechanism 3 is detachably connected with the second clamping mechanism 4 through an automatic locking assembly; the automatic locking assembly comprises a clamping groove 10 and a clamping piece 11, the clamping groove 10 and the clamping piece 11 are correspondingly arranged on the inner inclined surface 8 or the outer inclined surface 9 respectively, and the corresponding clamping groove 10 is matched with the clamping piece 11. When the first clamping mechanism 3 and the second clamping mechanism 4 approach each other, the clamping member 44 automatically clamps with the clamping groove 10 to fix the first clamping mechanism 3 and the second clamping mechanism 4.

The clamping piece 11 comprises a clamping block and a spring, the spring is vertically arranged in the inner inclined surface 8 or the outer inclined surface 9, in order to prevent the spring from inclining, a positioning groove is arranged in the inner inclined surface 8 or the outer inclined surface 9, and the diameter of the positioning groove is slightly larger than the outer diameter of the spring; one end of the spring is fixedly connected with the bottom surface of the positioning groove, and the other end of the spring is fixedly connected with one side of the clamping block; the fixture block is arranged outside the inner inclined surface 8 or the outer inclined surface 9, and the other side of the fixture block is clamped with the clamping groove 10, so that the first clamping mechanism 3 and the second clamping mechanism 4 can be clamped better.

The handle 5 comprises a support frame 6 and a hollow handle 7, the fixed ends of the first telescopic mechanism 1 and the second telescopic mechanism 2 are respectively fixedly connected with the two sides of the support frame 6, and the handle is fixedly arranged at the lower part of the support frame 6 so as to be convenient for an operator to hold; a switch 14 is movably arranged outside the handle 7, the switch 14 is a three-section electronic switch, a power supply and a control unit are fixedly arranged in the middle of the handle 7, and the switch 14 is electrically connected with the power supply; a distance measuring sensor is fixedly arranged at the end part of the first clamping mechanism 3 or the second clamping mechanism 4 and is used for measuring the distance between the first clamping mechanism 3 and the second clamping mechanism 4 which are symmetrically arranged; the distance measuring sensor is electrically connected with the control unit, and the control unit is electrically connected with the power supply; the first telescopic mechanism 1 and the second telescopic mechanism 2 are both electrically connected with the control unit, and the first telescopic mechanism 1 and the second telescopic mechanism 2 are both electrically connected with a power supply through a switch 14; the switch 14 is turned on, the control unit controls the movable ends of the first telescopic mechanism 1 and the second telescopic mechanism 2 to retract simultaneously, so that the first clamping mechanism 3 and the second clamping mechanism 4 are controlled to deviate synchronously, the handheld handle 5 places the first clamping mechanism 3 and the second clamping mechanism 4 at the outer sides of an inflation inlet and an inflation head of a connected circuit breaker, the control unit controls the movable ends of the first telescopic mechanism 1 and the second telescopic mechanism 2 to approach each other, so that the first clamping mechanism 3 and the second clamping mechanism 4 clamp the inflation inlet and the inflation head of the circuit breaker, when the distance measuring sensor senses that the distance between the first clamping mechanism 3 and the second clamping mechanism 4 is zero, the distance measuring sensor sends a signal to the control unit, and the control unit controls the first telescopic mechanism 1 and the second telescopic mechanism 2 to keep pressure; after the inflation is finished, the switch 14 is pressed, the control unit controls the first telescopic mechanism 1 and the second telescopic mechanism 2 to release, the first clamping mechanism 3 and the second clamping mechanism 4 deviate from each other, and finally the switch 14 is pressed to turn off the power supply.

A halogen gas sensor for detecting SF6 gas leakage and an alarm unit for reminding are fixedly arranged in the middle of the handle 7, as shown in FIG. 2, the halogen gas sensor and the alarm unit are electrically connected with the control unit, and when the halogen gas sensor detects SF6 gas leakage, the control unit starts the alarm unit to give an alarm to an operator; the lower part of the handle 7 is provided with an air outlet 13 so as to facilitate the outflow of the tested gas and avoid influencing the next detection result; the upper part of the handle 7 is provided with an air hole, the air hole corresponds to the through hole 12 in the middle of the support frame 6, and air enters the middle of the handle 7 from the through hole 12 and the air hole, so that the halogen gas sensor can conveniently monitor the air around the first clamping mechanism 3 and the second clamping mechanism 4; all fixedly in bleeder vent and the through-hole 12 be equipped with the filter screen, the filter screen is arranged in carrying out the filtration of solid particle impurity to the air that gets into in the through-hole 12.

The alarm unit comprises a buzzer, as shown in fig. 2, the buzzer is electrically connected with the power supply through the control unit, when the halogen gas sensor detects that SF6 gas leaks, a signal is sent to the control unit, and when the control unit receives the leakage signal, the control unit immediately starts the buzzer to warn operators.

First telescopic machanism 1 and second telescopic machanism 2 include miniature sharp push rod, the push rod of two miniature sharp push rods respectively with the middle part fixed connection in the first clamping mechanism 3 and the 4 outsides of second clamping mechanism, the fixing base of two miniature sharp push rods respectively with the both sides fixed connection of support frame 6, support frame 6 plays the effect of fixing and supporting miniature sharp push rod.

The supporting frame 6 comprises an upper annular frame and a lower base, the two miniature linear push rods are relatively and fixedly arranged on the upper portion of the annular frame, the lower portion of the annular frame is welded with the base, and in order to avoid interference of the base with the first clamping mechanism and the second clamping mechanism, the height of the annular frame is larger than the radius of the first clamping mechanism 3 and the radius of the second clamping mechanism 4; the base is provided with a through hole 12, and the middle part of the base is fixedly provided with a handle 7; the handle 7 is arranged below the base.

in the embodiment, the model of the halogen gas sensor is TGS832-A00, the model of the control unit is STC89C52RC, the model of the buzzer is HRB-P80, and the model of the micro linear push rod is HB-DJ 806; the power supply can adopt a storage battery.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.