CN219321208U - Switching-on/off indicating device - Google Patents
Switching-on/off indicating device Download PDFInfo
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- CN219321208U CN219321208U CN202320164523.4U CN202320164523U CN219321208U CN 219321208 U CN219321208 U CN 219321208U CN 202320164523 U CN202320164523 U CN 202320164523U CN 219321208 U CN219321208 U CN 219321208U
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Abstract
The utility model provides an opening and closing indicating device, which comprises: the shell is connected with the mechanism box and is provided with a closing observation port and a separating observation port which are sequentially spaced along a preset direction; the connecting shaft is parallel to the preset direction and is partially positioned in the shell, and one end of the connecting shaft is connected with the transmission shaft in the mechanism box; the indication part is provided with a closing mark and a separating mark on the outer peripheral surface in sequence; the indicating component is sleeved on a screw rod of the connecting shaft, and the screw rod is a ball screw; the guide rod is arranged in the shell and parallel to the connecting shaft, and the indicating component is sleeved on the guide rod in a sliding manner; the transmission shaft drives the connecting shaft to rotate so as to drive the indicating component to move along the screw rod, so that the closing identifier moves to the closing observation port or the opening identifier moves to the opening observation port, and the problem that the position indicated by the opening and closing indicator cannot completely correspond to the actual opening and closing position of the mechanism easily occurs in the side-phase opening and closing indicating device of the isolating switch in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of switching equipment, in particular to a switching-on/off indicating device.
Background
GIS (gas insulated metal enclosed switch) equipment is widely applied in the power system due to the advantages of small occupied area, stable performance and the like.
If the isolating switch in the GIS equipment is not in place, equipment accidents can be caused, when the GIS equipment has accidents, the processing difficulty is high, the power supply recovery is slow, and the required cost is high, so that hidden danger is brought to the use of the GIS equipment. Therefore, it is important to accurately judge whether the isolating switch in the GIS equipment is in place or not in the operation process.
Because GIS equipment is sealed type equipment, the external world can not directly observe the motion condition inside the equipment, so can only be indirectly known by means of external indication and operating mechanism indication boards.
At present, a side phase opening and closing indicating device of a three-phase linkage isolating switch in most engineering GIS equipment comprises an opening and closing indicator, an opening and closing indicating window, a connecting shell and a connecting shaft, wherein the connecting shaft is connected with a mechanism transmission shaft through a spline, an opening and closing indicating mark of the opening and closing indicator is arranged on the end face of one end of the opening and closing indicator far away from the connecting shaft, the opening and closing indicator is connected with one end of the connecting shaft far away from the mechanism transmission shaft through a transmission mechanism (such as a crank connecting rod mechanism, a gear assembly and the like) so as to realize synchronous movement of the opening and closing indicator and the mechanism, the opening and closing indicating window is an observation window with three transparent glass windows at intervals around the axis of the connecting shaft, and the opening and closing indicating window is connected with a connecting shell through bolts; the mechanism drives the mechanism transmission shaft to rotate through gear transmission so as to drive the connecting shaft to rotate, and then drives the opening and closing indicator to rotate through the transmission mechanism, and when the opening and closing indicator is installed, the opening and closing indicator is adjusted to be corresponding to the opening and closing positions of the mechanism in actual operation.
However, the above-described side-phase opening/closing indicator has the following drawbacks:
(1) When the indication opening and closing indicating device is arranged at a high position, the position of the opening and closing indicator is difficult to observe;
(2) Along with the continuous rotation of the transmission shaft, the accumulated motion error generated between the transmission shaft and the opening and closing indicator due to the transmission precision can cause that the position indicated by the opening and closing indicator cannot completely correspond to the actual opening and closing position of the mechanism, so that judgment of observers is affected.
Disclosure of Invention
The utility model mainly aims to provide a switching-on/off indicating device, which aims to solve the problem that in the prior art, the side phase switching-on/off indicating device of an isolating switch is easy to cause that the position indicated by a switching-on/off indicator cannot completely correspond to the actual switching-on/off position of a mechanism.
In order to achieve the above object, according to one aspect of the present utility model, there is provided an opening/closing indicating device for displaying an opening/closing state inside a mechanism case of an isolating switch, the opening/closing indicating device including: the shell is connected with the mechanism box and is provided with a closing observation port and a separating observation port which are sequentially spaced along a preset direction; the connecting shaft is parallel to the preset direction and is partially positioned in the shell, and one end of the connecting shaft, which is close to the mechanism box, is connected with the transmission shaft in the mechanism box; the outer peripheral surface of the indicating component is sequentially provided with a closing mark and a separating mark at intervals; the indicating component is sleeved on a screw rod of the connecting shaft, and the screw rod is a ball screw; the guide rod is arranged in the shell, is parallel to the connecting shaft and is arranged at intervals with the connecting shaft, and the indicating component is slidably sleeved on the guide rod; the transmission shaft drives the connecting shaft to rotate so as to drive the indicating component to linearly move along the screw rod, so that the closing mark moves to the closing observation port or the opening mark moves to the opening observation port.
Further, a plurality of closing observation ports are formed, and the plurality of closing observation ports are arranged at intervals around the outer peripheral surface of the shell; and/or a plurality of opening observation ports are arranged at intervals around the outer peripheral surface of the shell.
Further, a plurality of closing marks are arranged at intervals around the outer peripheral surface of the indicating component, and the closing marks are arranged in one-to-one correspondence with the closing observation ports; and/or the plurality of brake separating marks are arranged at intervals around the peripheral surface of the indicating component, and the plurality of brake separating marks are arranged in one-to-one correspondence with the plurality of brake separating observation ports.
Further, the quantity of guide bar is a plurality of, and a plurality of guide bars are set up around the axis interval of connecting axle, and each guide bar all is fixed connection with the shell, and each guide bar all wears to establish on instructing the part and with instructing the part clearance fit.
Further, the connecting shaft comprises a first connecting section and a second connecting section, the first connecting section comprises a screw rod and a sleeve, and the screw rod is positioned at one end of the sleeve far away from the mechanism box; the second connecting section comprises a plug-in section and a transmission shaft connecting section, and the transmission shaft connecting section is positioned at one end of the plug-in section, which is close to the mechanism box; the connecting section of the transmission shaft is connected with the transmission shaft, and the inserting section is inserted in the sleeve and fixedly connected with the sleeve.
Further, the opening and closing indicating device further comprises a transparent tube arranged in the shell, and the indicating component, the screw rod and the guide rod are all positioned in the transparent tube so as to separate the inside and the outside of the shell through the transparent tube.
Further, the housing includes a shell and an end cap located at an end of the shell remote from the mechanism case, the shell including a receiving cavity, the transparent tube being located in the receiving cavity.
Further, an annular baffle is arranged in the accommodating cavity and is positioned at one end of the transparent tube far away from the end cover, and the annular baffle and the end cover jointly stop the movement of the transparent tube.
Further, a first sealing ring is clamped between the first end of the transparent pipe and the end cover, a first annular groove for installing the first sealing ring is formed in one side, close to the shell, of the end cover, one side of the first sealing ring is abutted to the bottom surface of the groove, and the other side of the first sealing ring is abutted to the transparent pipe; a second sealing ring is clamped between the second end of the transparent pipe and the shell, a second annular groove for installing the second sealing ring is formed in one side, close to the end cover, of the annular baffle plate, one side of the second sealing ring is abutted to the bottom surface of the second annular groove, and the other side of the second sealing ring is abutted to the transparent pipe.
Further, a third sealing ring is clamped between the shell and the mechanism box, a third annular groove for installing the third sealing ring is arranged on one side of the shell close to the mechanism box, one side of the third sealing ring is abutted with the groove bottom surface of the third annular groove, and the other side of the third sealing ring is abutted with the mechanism box.
By applying the technical scheme of the utility model, the opening and closing indicating device is used for displaying the opening and closing state in the mechanism box of the isolating switch, and comprises: the shell is connected with the mechanism box and is provided with a closing observation port and a separating observation port which are sequentially spaced along a preset direction; the connecting shaft is parallel to the preset direction and is partially positioned in the shell, and one end of the connecting shaft, which is close to the mechanism box, is connected with the transmission shaft in the mechanism box; the outer peripheral surface of the indicating component is sequentially provided with a closing mark and a separating mark at intervals; the indicating component is sleeved on the screw rod of the connecting shaft, and the screw rod is a ball screw; the guide rod is arranged in the shell, is parallel to the connecting shaft and is arranged at intervals with the connecting shaft, and the indicating component is slidably sleeved on the guide rod; the transmission shaft drives the connecting shaft to rotate so as to drive the indicating component to linearly move along the screw rod, so that the closing mark moves to the closing observation port or the opening mark moves to the opening observation port. In this way, the rotary display opening and closing indicating device in the prior art is converted into the movable display opening and closing indicating device through the screw pair between the screw rod of the connecting shaft and the indicating component, and the side phase opening and closing indicating device of the isolating switch in the gas insulated metal closed switch equipment can accurately display opening and closing of the side phase of the three-phase isolating switch in the gas insulated metal closed switch equipment in the direction parallel to the connecting shaft due to high transmission precision, high sensitivity and good synchronism of screw transmission, so that the accuracy, reliability and convenience of indication of opening and closing positions of the isolating switch in the GIS equipment and daily inspection of the GIS equipment are improved, the judgment accuracy of observers is improved, the occurrence of electric safety accidents is reduced, the power supply reliability of the GIS equipment is improved, and the problem that the position indicated by the side phase opening and closing indicator of the isolating switch in the prior art cannot completely correspond to the actual opening and closing position of the mechanism is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a cross-sectional view of an embodiment of a switching on/off indicating device according to the present utility model;
FIG. 2 is a cross-sectional view showing the opening and closing indicating device shown in FIG. 1 mounted on a mechanism housing;
FIG. 3 shows an enlarged partial view of the cross-sectional view of FIG. 2 at A;
FIG. 4 is a top view of the opening and closing indicating device of FIG. 1 shown in a closed position;
FIG. 5 is a top view of the opening and closing indicating device of FIG. 1 shown in a position showing an opening;
fig. 6 is a cross-sectional view showing a connection shaft of the opening/closing indicating device shown in fig. 1.
Wherein the above figures include the following reference numerals:
1. an end cap; 2. a first seal ring; 3. a transparent tube; 4. an indication member; 5. a housing; 51. a receiving chamber; 52. an annular baffle; 6. a connecting shaft; 61. a first connection section; 611. a screw; 612. a sleeve; 62. a second connection section; 621. a transmission shaft connecting section; 622. a plug section; 7. a second seal ring; 8. a third seal ring; 9. a mechanism box; 91. a transmission shaft; 10. closing a switch mark; 11. a brake separating mark; 12. a closing observation port; 13. a brake opening observation port; 14. a guide rod.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 6, the present utility model provides an opening/closing indicating device for displaying an opening/closing state inside a mechanism case 9 of an isolating switch, the opening/closing indicating device comprising: the shell is connected with the mechanism box 9, and is provided with a closing observation port 12 and a separating observation port 13 which are sequentially spaced along a preset direction; a connecting shaft 6, the connecting shaft 6 being parallel to a predetermined direction and partially located in the housing, one end of the connecting shaft 6 near the mechanism case 9 being connected to a transmission shaft 91 in the mechanism case 9; the indicating component 4 is provided with a closing identifier 10 and a separating identifier 11 at intervals in sequence on the outer peripheral surface of the indicating component 4; the indicating component 4 is sleeved on a screw 611 of the connecting shaft 6, and the screw 611 is a ball screw; the guide rod 14 is arranged in the shell, the guide rod 14 is parallel to the connecting shaft 6 and is arranged at intervals with the connecting shaft 6, and the indicating component 4 is slidably sleeved on the guide rod 14; the transmission shaft 91 drives the connection shaft 6 to rotate, so as to drive the indicating component 4 to linearly move along the screw 611, so that the closing sign 10 moves to the closing observation port 12 or the opening sign 11 moves to the opening observation port 13.
In this way, the rotary display opening and closing indicating device in the prior art is set to be the movable display opening and closing indicating device through the spiral pair between the screw 611 of the connecting shaft 6 and the indicating component 4, and the side phase opening and closing indicating device of the isolating switch in the gas insulated metal enclosed switchgear can accurately display opening and closing of the side phase of the three-phase isolating switch in the gas insulated metal enclosed switchgear in the direction parallel to the connecting shaft 6 due to high transmission precision, high sensitivity and good synchronism of spiral transmission, so that the accuracy, reliability and convenience of the indication of opening and closing positions of the isolating switch in the GIS and the daily inspection of the GIS are improved, the judgment accuracy of observers is improved, the occurrence of electric safety accidents is reduced, the power supply reliability of the GIS is improved, and the problem that the position indicated by the opening and closing indicator cannot completely correspond to the actual opening and closing position of a mechanism easily occurs in the side phase opening and closing indicating device of the isolating switch in the prior art is solved.
Specifically, the indication member 4 is a nut that cooperates with the ball screw, the closing mark 10 may be a "closing" word that is directly processed on the outer peripheral surface of the nut, and the opening mark 11 may be a "opening" word that is directly processed on the outer peripheral surface of the nut.
In addition, the closing mark 10 and the opening mark 11 can be displayed by English words, pinyin, colors or the like.
Preferably, the number of the closing observation ports 12 is plural, and the plural closing observation ports 12 are arranged at intervals around the outer peripheral surface of the housing; and/or the opening observation ports 13 are a plurality of, and the opening observation ports 13 are arranged around the outer peripheral surface of the shell at intervals.
Specifically, the closing observation port 12 is a kidney-shaped through hole provided through the housing, and the length direction of the kidney-shaped through hole is parallel to the circumferential direction of the housing.
Preferably, the number of the closing marks 10 is multiple, the multiple closing marks 10 are arranged at intervals around the peripheral surface of the indicating part 4, and the multiple closing marks are arranged in one-to-one correspondence with the multiple closing observation ports 12; and/or the brake separating marks 11 are a plurality of, a plurality of brake separating marks 11 are arranged around the peripheral surface of the indicating component 4 at intervals, and a plurality of brake separating marks are arranged in a one-to-one correspondence with a plurality of brake separating observation ports 13.
Further preferably, the number of the switching-on observation ports 12 and the switching-on marks 10 is two, the two switching-on observation ports 12 are respectively positioned on two opposite sides of the central line of the shell and symmetrically arranged about the central line of the shell, the two switching-on marks 10 are respectively positioned on two opposite sides of the central line of the indicating part 4 and symmetrically arranged about the central line of the indicating part 4, and the two switching-on marks 10 are correspondingly arranged with the two switching-on observation ports 12; the two opening observation ports 13 and the two opening marks 11 are respectively positioned on two opposite sides of the center line of the shell and symmetrically arranged about the center line of the shell, the two opening marks 11 are respectively positioned on two opposite sides of the center line of the indicating component 4 and symmetrically arranged about the center line of the indicating component 4, and the two opening marks 11 are correspondingly arranged with the two opening observation ports 13.
Preferably, the number of the guide rods 14 is plural, the plurality of guide rods 14 are arranged at intervals around the axis of the connecting shaft 6, each guide rod 14 is fixedly connected with the shell, and each guide rod 14 is arranged on the indicating part 4 in a penetrating way and is in clearance fit with the indicating part 4.
As shown in fig. 6, the connecting shaft 6 includes a first connecting section 61 and a second connecting section 62, the first connecting section 61 includes a screw 611 and a sleeve 612, the screw 611 is located at an end of the sleeve 612 remote from the mechanism case 9; the second connecting section 62 comprises a plug section 622 and a transmission shaft connecting section 621, and the transmission shaft connecting section 621 is positioned at one end of the plug section 622 close to the mechanism box 9; wherein, the transmission shaft connecting section 621 is connected with the transmission shaft 91, and the plugging section 622 is inserted into the sleeve 612 and fixedly connected with the sleeve 612.
Specifically, the screw 611 is a trapezoidal external thread, the transmission shaft connecting section 621 is a precise external cylindrical shaft structure with a key slot machined inside, the transmission shaft 91 is a precise external cylindrical shaft structure with a key slot machined outside, and the transmission shaft connecting section 621 is connected with the transmission shaft 91 through a flat key, so that synchronous rotation of the connecting shaft 6 and the transmission shaft 91 is realized.
Alternatively, the drive connection between drive shaft segment 621 and drive shaft 91 may be accomplished by other connection structures besides a flat key connection, such as splines, etc.
As shown in fig. 1 and 2, the opening/closing indicating device further includes a transparent tube 3 provided in the housing, and the indicating member 4, the screw 611, and the guide rod 14 are all located in the transparent tube 3 to separate the inside and outside of the housing by the transparent tube 3.
Alternatively, the transparent tube 3 is made of glass or acryl or resin or PVC or the like.
Preferably, the transparent tube 3 is made of tempered glass.
As shown in fig. 1 and 2, the housing comprises a casing 5 and an end cap 1 at the end of the casing 5 remote from the mechanism box 9, the casing 5 comprising a receiving cavity 51, the transparent tube 3 being located within the receiving cavity 51.
Specifically, an annular baffle plate 52 is disposed in the accommodating cavity 51, the annular baffle plate 52 is located at one end of the transparent tube 3 away from the end cover 1, and the annular baffle plate 52 and the end cover 1 together stop the movement of the transparent tube 3.
Preferably, a first sealing ring 2 is clamped between the first end of the transparent tube 3 and the end cover 1, a first annular groove for installing the first sealing ring 2 is formed in one side, close to the shell 5, of the end cover 1, one side of the first sealing ring 2 is abutted with the bottom surface of the first annular groove, and the other side of the first sealing ring 2 is abutted with the first end of the transparent tube 3; a second sealing ring 7 is clamped between the second end of the transparent pipe 3 and the shell 5, a second annular groove for installing the second sealing ring 7 is formed in one side, close to the end cover 1, of the annular baffle plate 52, one side of the second sealing ring 7 is abutted to the bottom surface of the second annular groove, and the other side of the second sealing ring 7 is abutted to the second end of the transparent pipe 3 so as to prevent rainwater and the like from entering the structures of the corrosion indicating component 4, the connecting shaft 6 and the like in the transparent pipe.
Further preferably, a third sealing ring 8 is clamped between the shell and the mechanism box 9, a third annular groove for installing the third sealing ring 8 is arranged on one side of the shell close to the mechanism box 9, one side of the third sealing ring 8 is abutted with the bottom surface of the third annular groove, and the other side of the third sealing ring 8 is abutted with the mechanism box 9, so that rainwater and the like are further prevented from entering the shell to corrode the connecting shaft 6 and the like.
The operating principle of the opening and closing indicating device of the utility model is as follows:
before the housing is installed, when the mechanism in the mechanism box 9 is in a brake-off state, the position of the indicating component 4 on the screw 611 is adjusted so that the brake-off mark 11 of the indicating component 4 is aligned with the brake-off observation port 13; when the mechanism in the mechanism case 9 is in the closing state, the position of the indicating member 4 on the screw 611 is adjusted so that the closing logo 10 of the indicating member 4 is aligned with the closing observation port 12.
After the opening and closing indicating device is installed, when the mechanism in the mechanism box 9 moves, the transmission shaft 91 in the mechanism box 9 rotates to drive the connecting shaft 6 to rotate, and the indicating component 4 moves linearly along the screw 611 of the connecting shaft 6 due to the guiding limit of the guiding rod 14.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the opening and closing indicating device of the present utility model is used for displaying the opening and closing state in the mechanism box 9 of the isolating switch, and the opening and closing indicating device comprises: the shell is connected with the mechanism box 9, and is provided with a closing observation port 12 and a separating observation port 13 which are sequentially spaced along a preset direction; a connecting shaft 6, the connecting shaft 6 being parallel to a predetermined direction and partially located in the housing, one end of the connecting shaft 6 near the mechanism case 9 being connected to a transmission shaft 91 in the mechanism case 9; the indicating component 4 is provided with a closing identifier 10 and a separating identifier 11 at intervals in sequence on the outer peripheral surface of the indicating component 4; the indicating component 4 is sleeved on the screw 611 of the connecting shaft 6, and the screw 611 is a ball screw; the guide rod 14 is arranged in the shell, the guide rod 14 is parallel to the connecting shaft 6 and is arranged at intervals with the connecting shaft 6, and the indicating component 4 is slidably sleeved on the guide rod 14; the transmission shaft 91 drives the connection shaft 6 to rotate, so as to drive the indicating component 4 to linearly move along the screw 611, so that the closing sign 10 moves to the closing observation port 12 or the opening sign 11 moves to the opening observation port 13. In this way, the rotary display opening and closing indicating device in the prior art is set to be the movable display opening and closing indicating device through the spiral pair between the screw 611 of the connecting shaft 6 and the indicating component 4, and the side phase opening and closing indicating device of the isolating switch in the gas insulated metal enclosed switchgear can accurately display opening and closing of the side phase of the three-phase isolating switch in the gas insulated metal enclosed switchgear in the direction parallel to the connecting shaft 6 due to high transmission precision, high sensitivity and good synchronism of spiral transmission, so that the accuracy, reliability and convenience of the indication of opening and closing positions of the isolating switch in the GIS and the daily inspection of the GIS are improved, the judgment accuracy of observers is improved, the occurrence of electric safety accidents is reduced, the power supply reliability of the GIS is improved, and the problem that the position indicated by the opening and closing indicator cannot completely correspond to the actual opening and closing position of a mechanism easily occurs in the side phase opening and closing indicating device of the isolating switch in the prior art is solved.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An opening and closing indicating device for displaying an opening and closing state inside a mechanism box (9) of an isolating switch, the opening and closing indicating device comprising:
the shell is connected with the mechanism box (9), and a closing observation port (12) and a separating observation port (13) which are sequentially spaced along a preset direction are arranged on the shell;
a connecting shaft (6), wherein the connecting shaft (6) is parallel to the preset direction and is partially positioned in the shell, and one end of the connecting shaft (6) close to the mechanism box (9) is connected with a transmission shaft (91) in the mechanism box (9);
the indicating component (4), the peripheral surface of the indicating component (4) is sequentially provided with a closing mark (10) and a separating mark (11) at intervals; the indicating component (4) is sleeved on a screw rod (611) of the connecting shaft (6), and the screw rod (611) is a ball screw;
the guide rod (14) is arranged in the shell, the guide rod (14) is parallel to the connecting shaft (6) and is arranged at intervals with the connecting shaft (6), and the indication part (4) is slidably sleeved on the guide rod (14);
the transmission shaft (91) drives the connecting shaft (6) to rotate, so that the indicating component (4) is driven to linearly move along the screw rod (611), so that the closing sign (10) moves to a closing observation port (12) or the opening sign (11) moves to a opening observation port (13).
2. The opening/closing indicating device according to claim 1, wherein,
the plurality of closing observation ports (12) are arranged at intervals around the outer peripheral surface of the shell; and/or
The number of the opening observation ports (13) is multiple, and the opening observation ports (13) are arranged around the outer circumferential surface of the shell at intervals.
3. The opening/closing indicating device according to claim 2, wherein,
the plurality of closing marks (10) are arranged at intervals around the outer peripheral surface of the indicating component (4), and the plurality of closing marks are arranged in one-to-one correspondence with the plurality of closing observation ports (12); and/or
The number of the opening marks (11) is multiple, the opening marks (11) are arranged around the outer circumferential surface of the indicating component (4) at intervals, and the opening marks are arranged in one-to-one correspondence with the opening observation ports (13).
4. The opening and closing indicating device according to claim 1, wherein the number of the guide rods (14) is plural, the plural guide rods (14) are arranged at intervals around the axis of the connecting shaft (6), each guide rod (14) is fixedly connected with the housing, and each guide rod (14) is arranged on the indicating component (4) in a penetrating manner and is in clearance fit with the indicating component (4).
5. The opening/closing indicating device according to claim 1, characterized in that the connecting shaft (6) comprises a first connecting section (61) and a second connecting section (62),
the first connection section (61) comprises the screw (611) and a sleeve (612), the screw (611) being located at an end of the sleeve (612) remote from the mechanism box (9);
the second connecting section (62) comprises a plug section (622) and a transmission shaft connecting section (621), and the transmission shaft connecting section (621) is positioned at one end of the plug section (622) close to the mechanism box (9);
the transmission shaft connecting section (621) is connected with the transmission shaft (91), and the inserting section (622) is inserted into the sleeve (612) and fixedly connected with the sleeve (612).
6. The opening/closing indicating device according to claim 1, further comprising a transparent tube (3) provided in the housing, the indicating member (4), the screw (611) and the guide rod (14) being all located in the transparent tube (3) to separate the inside and outside of the housing by the transparent tube (3).
7. The opening/closing indicating device according to claim 6, characterized in that the housing comprises a housing (5) and an end cap (1) at an end of the housing (5) remote from the mechanism box (9), the housing (5) comprising a receiving cavity (51), the transparent tube (3) being located within the receiving cavity (51).
8. The opening and closing indicating device according to claim 7, characterized in that an annular baffle plate (52) is arranged in the accommodating cavity (51), the annular baffle plate (52) is positioned at one end of the transparent tube (3) far away from the end cover (1), and the annular baffle plate (52) and the end cover (1) jointly stop the movement of the transparent tube (3).
9. The opening/closing indicating device according to claim 8, wherein,
a first sealing ring (2) is clamped between the first end of the transparent pipe (3) and the end cover (1), a first annular groove for installing the first sealing ring (2) is formed in one side, close to the shell (5), of the end cover (1), one side of the first sealing ring (2) is abutted to the bottom surface of the first annular groove, and the other side of the first sealing ring (2) is abutted to the transparent pipe (3);
the second end of the transparent pipe (3) and the shell (5) are clamped with a second sealing ring (7), one side, close to the end cover (1), of the annular baffle (52) is provided with a second annular groove used for installing the second sealing ring (7), one side of the second sealing ring (7) is abutted to the bottom surface of the second annular groove, and the other side of the second sealing ring (7) is abutted to the transparent pipe (3).
10. The opening and closing indicating device according to claim 1, characterized in that a third sealing ring (8) is clamped between the housing and the mechanism box (9), a third annular groove for installing the third sealing ring (8) is arranged on one side of the housing, which is close to the mechanism box (9), one side of the third sealing ring (8) is abutted with the bottom surface of the third annular groove, and the other side of the third sealing ring (8) is abutted with the mechanism box (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320164523.4U CN219321208U (en) | 2023-01-28 | 2023-01-28 | Switching-on/off indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320164523.4U CN219321208U (en) | 2023-01-28 | 2023-01-28 | Switching-on/off indicating device |
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| CN202320164523.4U Active CN219321208U (en) | 2023-01-28 | 2023-01-28 | Switching-on/off indicating device |
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