CN215810621U

CN215810621U - Positioning protractor

Info

Publication number: CN215810621U
Application number: CN202121198598.1U
Authority: CN
Inventors: 谭李
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-02-11
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a positioning protractor, which comprises an indicating disc and a pointer, wherein scales are arranged on the indicating disc, a circumferential arc-shaped groove is formed in the indicating disc, a plurality of opening and closing slide blocks capable of sliding along the arc-shaped groove are arranged on the indicating disc, a locking device capable of locking the opening and closing slide blocks and the indicating disc is further arranged between the opening and closing slide blocks and the indicating disc, the indicating disc is provided with an arc-shaped edge, the opening and closing slide blocks are connected with opening and closing indicating plates, and at least two positioning convex parts abutted to the arc-shaped edge are arranged on the opening and closing indicating plates. The positioning protractor has the function of indicating the opening and closing positions of the disconnecting link, and the opening and closing position sliding block of the protractor is not easy to skew and has accurate indication.

Description

Positioning protractor

Technical Field

The utility model relates to the technical field of gas insulated switchgear, in particular to a positioning protractor.

Background

The gas insulated switchgear has the advantages of compact structure, small floor area, high reliability, small maintenance workload and the like, and is widely applied in society. In practical application, the judgment of the positions of the disconnecting switch and the grounding switch (hereinafter, collectively referred to as a disconnecting link) of the device is very important, and if the judgment is not accurate, great potential safety hazards can be brought to human bodies and the device. Traditionally, the opening and closing position indicating devices of the disconnecting link are divided into two types, one type is that opening and closing indication boards are arranged in an operating mechanism box, and the other type is that opening and closing position indicating devices are arranged at a transmission connecting rod. The two disconnecting link switching-on and switching-off position indicating devices have the problems of rough position indication and low accuracy, and can cause error judgment of workers in actual work and failure in timely and accurate disconnecting link fault finding, thereby causing accidents.

In order to solve the problem, the utility model with application number 201920897114.9 discloses a switch-off and switch-on position indicating device of disconnecting link, including fan ring indicating dial, switch-off and switch-on pointer, switch-off position slider, switch-on position slider, set screw, scale. When the position indicating device is installed on a gas insulated switchgear, a pointer is installed on a transmission shaft of the gas insulated switchgear, a sector ring indicating disc is fixedly installed on a fixed part on the gas insulated switchgear, and the opening and closing position indicating device with the structure has the following problems:

firstly, after the equipment is temporarily dismantled for maintenance, the opening and closing position indicating device needs to be dismantled, after the gas insulated switchgear is re-installed, the opening and closing position indicating device is re-installed, then the debugging is carried out again, the opening position sliding block and the closing position sliding block are adjusted to corresponding positions to continue to be used, and time and labor are wasted.

Secondly, every separating brake position slider, closing position slider are only through a nut locking, and the manual work installation is not standard or when receiving external forces such as strong wind, and is crooked easily, also produces the displacement easily when typhoon weather, and then leads to instructing the condition of inaccurate to appear.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a positioning protractor for a disconnecting link, which has a function of indicating a disconnecting link and a closing position of the disconnecting link, and a sliding block of the disconnecting link and the closing position of the protractor is not easy to be skewed, and the indication is accurate.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the utility model provides a location protractor, includes indicating dial and pointer, the indicating dial on be provided with the scale, be provided with the arc wall of circumference on the indicating dial, be provided with on the indicating dial a plurality of can along the gliding divide-shut brake slider of arc wall, still be provided with between divide-shut brake slider and the indicating dial and can be with the locking means of the two locking, the indicating dial has the arc limit, divide-shut brake slider is connected with the divide-shut brake indicator, be provided with on the divide-shut brake indicator at least two with the location convex part of arc limit butt.

Preferably, the opening and closing slider is a stud fixed on one side of the opening and closing indicating sheet and penetrating through the arc-shaped groove, and the locking device is a nut for locking the stud and the opening and closing indicating sheet on the indicating disc.

Preferably, the indicating disc is circular ring-shaped, and the outer side edge of the indicating disc forms the arc-shaped edge.

Preferably, a first hoop coaxial with the indicating plate is fixedly arranged on the indicating plate, and a first displacement observation point is arranged on the first hoop.

Preferably, a weather-resistant outdoor reflective film is arranged on the surface of the switching-on/off indicating sheet.

Preferably, a second displacement observation point is arranged on the switching-on/off indicating sheet.

Preferably, the indicating disc comprises two semi-circular ring pieces, and the two semi-circular ring pieces are detachably connected to form a circular ring structure.

Preferably, the first ferrule has two first end pieces, the two first end pieces are correspondingly provided with bolt holes respectively, and one side of at least one first end piece, which is deviated from the other first end piece, is provided with a square nut mounting groove.

Preferably, one end of the pointer is provided with a second hoop, the second hoop is provided with two second end pieces, the two second end pieces are correspondingly provided with bolt holes respectively, and one side of at least one second end piece, which is far away from the other second end piece, is provided with a square nut mounting groove.

Preferably, two third displacement observation points are symmetrically arranged on the second ferrule.

The utility model has the beneficial effects that:

1. the positioning convex parts on the opening and closing indicating sheet are arranged at intervals, when the opening and closing indicating sheet is locked, the at least two positioning convex parts are abutted to the arc-shaped edge of the indicating disc, the opening and closing indicating sheet can be positioned, and the condition that the opening and closing indicating sheet is inclined when manual installation is not standard or external forces such as strong wind are received is avoided. The switching-on and switching-off indicating sheet can be limited to generate displacement in typhoon weather, and the indicating precision is improved.

2. The first displacement observation point arranged on the first hoop can be used as a reference point, so that whether displacement is generated due to vibration and typhoon blowing in the using process can be observed conveniently. When the equipment needs to be overhauled and temporarily removed, the first displacement observation point can be used as a benchmark reference point for resetting.

3. The weather-resistant outdoor reflective film on the surface of the switching-on/off indicating sheet improves the visual observation capability in daytime and at night, can keep 70% of reflection coefficient after being used for 10 years, and has strong weather resistance.

Drawings

FIG. 1 is a front view of the present invention in use;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a rear view of the present invention with the pointer omitted;

fig. 4 is a perspective view of the present invention with the pointer omitted.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 4, an embodiment of the present invention provides a positioning protractor, including an indicating disc 1 and a pointer 2, where the indicating disc 1 is provided with scales 101, the indicating disc 1 is provided with a circumferential arc-shaped groove 102, the indicating disc 1 is provided with a plurality of opening and closing sliders 31 capable of sliding along the arc-shaped groove 102, a locking device capable of locking the opening and closing sliders 31 and the indicating disc 1 is further provided between the opening and closing sliders 31 and the indicating disc 1, the indicating disc 1 has an arc-shaped edge 103 parallel to the arc-shaped groove 102, the opening and closing sliders 31 are connected with an opening and closing indicating sheet 32, and the opening and closing indicating sheet 32 is provided with at least two positioning protrusions 322 abutting against the arc-shaped edge 103.

The switching-on and switching-off indicating sheet 32 can be set to 4 or 2 sheets as required, and when the switching-on and switching-off indicating sheet 32 is set to 2 sheets, the switching-on and switching-off indicating sheet is respectively used for indicating switching-on and switching-off; when the number of the switching indicator pieces 32 is 4, it is generally used to indicate 4 cases of disconnecting link switching, grounding disconnecting link switching and grounding disconnecting link switching.

The indicating plate 1 and the pointer 2 are generally respectively installed at different positions of the gas insulated switchgear, for example, the pointer 2 is installed on a transmission shaft of the gas insulated switchgear and rotates therewith, and accordingly the indicating plate 1 is fixedly installed on a fixed part on the gas insulated switchgear; or the indicating plate 1 is arranged on a transmission shaft of the gas insulated switchgear, and the pointer 2 is fixedly arranged on a fixed part of the gas insulated switchgear.

In a preferred embodiment of the present invention, the opening/closing slider 31 is a stud fixed to one side of the opening/closing indicator sheet 32 and passing through the arc-shaped groove 102, and the locking device is a nut 33 for locking the stud and the opening/closing indicator sheet 32 to the indicator panel 1. When the nut 33 is unscrewed, the opening and closing indicating sheet 32 can be pushed to move along the arc-shaped groove 102, positions corresponding to various opening and closing states are debugged, and the stud and the opening and closing indicating sheet 32 are locked through the nut 33 after debugging is completed. When the gas insulated switchgear works, the switching-on/off indicating sheet 32 aligned with the pointer 2 can indicate the state of the gas insulated switchgear.

The positioning convex parts 322 on the switching-on/off indication sheet 32 are arranged at intervals, when the switching-on/off indication sheet 32 is locked, at least two positioning convex parts 322 are abutted against the arc-shaped edge 103 of the indication plate 1, the switching-on/off indication sheet 32 can be positioned, and the condition that the switching-on/off indication sheet 32 is inclined caused when manual installation is irregular or external forces such as strong wind are applied is avoided. In typhoon weather, the switching-on/off indicating sheet 32 can be limited from generating displacement, and the indicating precision can be improved.

In a preferred embodiment of the present invention, the indicating plate 1 has a circular ring shape, and the outer side of the indicating plate 1 forms an arc-shaped edge 103. By adopting the annular indicating disc 1, the position of the switching-on indicating sheet 32 can be adjusted in 360 degrees without dead angles.

Furthermore, a first ferrule 4 coaxial with the indicator panel 1 is fixedly arranged on the indicator panel 1, the first ferrule 4 can be fixed with the indicator panel 1 by welding, and a first displacement observation point 41 is arranged on the first ferrule 4. After the positioning protractor is installed on equipment, a punch is used for punching or smashing out a concave point to serve as the first displacement observation point 41, the first displacement observation point 41 serves as a reference point, and whether the indicating disc 1 is displaced due to vibration and typhoon blowing in the using process can be conveniently observed. When the equipment needs to be overhauled and temporarily removed, the first displacement observation point 41 can be used as a benchmark reference point for resetting.

Preferably, the number of the first displacement observation points 41 is two, and two first displacement observation points 41 are symmetrically arranged on the left and right sides of the first cuff 4.

Further, a weather-resistant outdoor reflective film is arranged on the surface of the switching-on/off indicating sheet 32. The weather-resistant outdoor reflective film improves the visual observation capability in daytime and at night, can keep 70 percent of reflection coefficient after being used for 10 years, and has strong weather resistance.

Further, a second displacement observation point 321 is provided on the switching-on/off indicating sheet 32. And a second displacement observation point 321 for observing whether the opening and closing indicating piece 32 is displaced due to vibration and blowing of typhoon during use.

Preferably, the indicator panel 1 comprises two semi-circular ring pieces, and the two semi-circular ring pieces are connected by a detachably connected device such as a screw, a bolt and the like to form a circular ring structure.

Further, the first ferrule 4 has two first end pieces 42, the two first end pieces 42 are correspondingly provided with bolt holes, and one side of at least one first end piece 42 departing from the other first end piece 42 is provided with a square nut mounting groove 5. The two first end pieces 42 are connected through bolts and nuts, the nuts are installed in the square nut installation grooves 5, the rotation of the nuts is limited in the process of locking the bolts, the fastening can be completed by one hand, and the device is suitable for narrow space operation.

Further, one end of the pointer 2 is provided with a second ferrule 6, the second ferrule 6 has two second end pieces 62, the two second end pieces 62 are correspondingly provided with bolt holes, and one side of at least one second end piece 62 departing from the other second end piece 62 is provided with a square nut mounting groove 5. The two second end pieces 62 are connected through bolts and nuts, the nuts are installed in the square nut installation grooves 5, the rotation of the nuts is limited in the process of locking the bolts, the fastening can be completed by one hand, and the device is suitable for narrow space operation.

Further, two third displacement observation points 61 are symmetrically arranged on the second ferrule 6. And a third displacement observation point 61 for observing whether the pointer 2 is displaced by vibration and blowing of typhoon during use.

The characters and the scales 101 are formed by etching process, and the content is still clear and visible after long-term use.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical scope of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a location protractor, includes indicating disc (1) and pointer (2), indicating disc (1) on be provided with scale (101), its characterized in that, be provided with circumferential arc wall (102) on indicating disc (1), be provided with on indicating disc (1) a plurality of can along gliding divide-shut brake slider (31) of arc wall (102), still be provided with the locking means that can lock the two between divide-shut brake slider (31) and indicating disc (1), indicating disc (1) has arc limit (103), divide-shut brake slider (31) are connected with divide-shut brake indicator (32), be provided with on divide-shut brake indicator (32) at least two with location convex part (322) of arc limit (103) butt.

2. The positioning protractor according to claim 1, wherein the switching slider (31) is a stud fixed on one side of the switching indicating plate (32) and penetrating through the arc-shaped groove (102), and the locking device is a nut (33) for locking the stud and the switching indicating plate (32) to the indicating disc (1).

3. A positioning protractor in accordance with claim 1, characterized in that the indicator disc (1) is circular in shape, the outer side of the indicator disc (1) forming the curved side (103).

4. A positioning protractor as claimed in claim 3, characterized in that the indicator disc (1) is fixedly provided with a first collar (4) coaxial therewith, the first collar (4) being provided with a first displacement observation point (41).

5. The positioning protractor of claim 1, characterized in that the surface of the opening and closing indicating plate (32) is provided with a weather-resistant outdoor reflective film.

6. A positioning protractor as claimed in claim 1, characterized in that the switching-closing indicating plate (32) is provided with a second displacement observation point (321).

7. A positioning protractor according to claim 3, characterized in that the indicator disc (1) comprises two semi-circular ring segments, which are detachably connected to form a circular ring structure.

8. The positioning protractor according to claim 4, characterized in that the first hoop (4) has two first end pieces (42), the two first end pieces (42) are respectively and correspondingly provided with bolt holes, and one side of at least one first end piece (42) facing away from the other first end piece (42) is provided with a square nut mounting groove (5).

9. A positioning protractor according to claim 1, characterized in that one end of the pointer (2) is provided with a second hoop (6), the second hoop (6) has two second end pieces (62), the two second end pieces (62) are respectively and correspondingly provided with bolt holes, and one side of at least one second end piece (62) which is far away from the other second end piece (62) is provided with a square nut mounting groove (5).

10. A positioning protractor as claimed in claim 9, characterized in that two third observation points of displacement (61) are symmetrically arranged on the second ferrule (6).