CN111077393A - Analog switch - Google Patents
Analog switch Download PDFInfo
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- CN111077393A CN111077393A CN201911349614.XA CN201911349614A CN111077393A CN 111077393 A CN111077393 A CN 111077393A CN 201911349614 A CN201911349614 A CN 201911349614A CN 111077393 A CN111077393 A CN 111077393A
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- sleeve
- inner cylinder
- cylinder body
- wall
- analog switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The application discloses analog switch ware includes: an avionic pod analog switch assembly; the aviation plug-in comprises an inner cylinder, a sealing sleeve, a limiting sleeve and a connecting sleeve; the sealing sleeve is fixedly sleeved on the first end of the inner cylinder body; the connecting sleeve is movably sleeved outside the inner cylinder body and is close to the second end of the inner cylinder body; the outer peripheral wall of the inner cylinder body is provided with a first annular flange distributed around the circumference of the inner cylinder body; the limiting sleeve is sleeved outside the inner cylinder body and positioned between the sealing sleeve and the connecting sleeve, the first end of the limiting sleeve is connected with the sealing sleeve, and a limiting gap for the connecting sleeve to move along the axial direction of the inner cylinder body is formed between the second end of the limiting sleeve and the first annular flange; an insulating seat is arranged in the inner cylinder body and close to the second end of the inner cylinder body; an installation cavity for accommodating the analog switch assembly is enclosed among the inner end wall of the insulating seat, the inner side wall of the inner cylinder body and the inner end wall of the sealing sleeve, and a plurality of contact pins electrically connected with the analog switch assembly penetrate through the insulating seat. The test operation under the condition of uninterrupted power supply is realized, the power failure time is reduced, the test cost is low, and the efficiency is high.
Description
Technical Field
The application relates to the technical field of power devices, in particular to an analog switch.
Background
Distribution automation switch terminal equipment is one of important control terminal equipment in power equipment, and in order to ensure that the distribution automation switch terminal equipment which has been put into operation can correctly operate for a long time, periodic tests are required. The traditional test usually needs to be carried out after power failure, and the test process consumes power failure time, and has high test cost and low efficiency.
Disclosure of Invention
In view of this, the present application provides an analog switch, which can be applied to a test of a distribution automation switch terminal device to implement a test operation under a condition of no power failure, reduce power failure time, and have low test cost and high efficiency.
In order to achieve the above technical object, the present application provides an analog switch, including: an avionic pod analog switch assembly;
the aviation plug-in comprises an inner cylinder, a sealing sleeve, a limiting sleeve and a connecting sleeve;
the sealing sleeve is fixedly sleeved on the first end of the inner cylinder body;
the connecting sleeve is movably sleeved outside the inner cylinder body and is close to the second end of the inner cylinder body;
the outer peripheral wall of the inner cylinder body is provided with a first annular flange distributed around the circumference of the inner cylinder body;
the limiting sleeve is sleeved outside the inner cylinder body and positioned between the sealing sleeve and the connecting sleeve, a first end of the limiting sleeve is connected with the sealing sleeve, and a limiting gap for the connecting sleeve to move along the axial direction of the inner cylinder body is formed between a second end of the limiting sleeve and the first annular flange;
an insulating seat is arranged in the inner cylinder body and close to the second end of the inner cylinder body;
and an installation cavity for accommodating the analog switch assembly is enclosed among the inner end wall of the insulating seat, the inner side wall of the inner barrel and the inner end wall of the sealing sleeve, and a plurality of contact pins electrically connected with the analog switch assembly are arranged on the insulating seat in a penetrating manner.
Furthermore, the inner wall of the connecting sleeve is provided with a second annular flange which is distributed around the circumference of the connecting sleeve and movably abutted against the first annular flange, and the first end of the connecting sleeve is movably abutted against the second end of the limiting sleeve.
Further, a first internal thread wall section is arranged on the inner wall of the connecting sleeve between the second annular flange and the second end of the connecting sleeve;
and a fit clearance is formed between the first inner thread wall section and the outer peripheral wall of the inner cylinder body.
Furthermore, the first end of the sealing sleeve is of a closed structure, the second end of the sealing sleeve is provided with an opening into which the first end of the inner cylinder extends, and the inner wall of the sealing sleeve is provided with a second inner thread wall section;
and a first external thread wall section in threaded fit with the second internal thread wall section is arranged on the inner cylinder body.
Furthermore, grooves which extend out of the opening and are distributed around the circumference of the sealing sleeve are formed in the inner wall of the sealing sleeve between the second inner thread wall section and the opening;
a third internal thread wall section is arranged on the side wall of the groove;
the first end of the limiting sleeve stretches into the groove, and the limiting sleeve is arranged on the sleeve section stretching into the groove and is provided with a second external thread wall section in threaded fit with the third internal thread wall section.
Further, a first sealing ring is arranged on the end wall of the groove;
when the limiting sleeve is in threaded connection with the sealing sleeve, the first end of the limiting sleeve and the end wall of the groove form clamping on the first sealing ring, so that the inner ring surface of the first sealing ring is in contact fit with the outer peripheral wall of the inner cylinder body.
Furthermore, a second sealing ring which is contacted and abutted against the first end of the inner cylinder body is arranged in the sealing sleeve.
Furthermore, a third annular flange distributed around the circumference of the inner cylinder body is further arranged on the outer circumferential wall of the inner cylinder body;
and a third sealing ring in contact fit with the inner wall of the limiting sleeve is sleeved on the third flange, and the outer diameter of the third annular flange is equal to the inner diameter of the second annular flange.
Furthermore, the stop collar and all be equipped with anti-skidding line on the adapter sleeve periphery wall.
Furthermore, a notch for indication is formed in the second end of the inner cylinder body.
According to the technical scheme, the aviation plug body structure convenient to insert is constructed by arranging the inner barrel body, the sealing sleeve fixedly sleeved on the first end of the inner barrel body, the connecting sleeve sleeved on the inner barrel body and used for connecting and fixing and the limiting sleeve sleeved on the inner barrel body and used for limiting the movement of the connecting sleeve; the analog switch assembly is arranged in the aviation plug and is electrically connected with a contact pin arranged on the insulating base, and secondary control output connection of the contact pin and disconnection of distribution automation switch terminal equipment is utilized to realize secondary loop current closed loop. Moreover, the analog switch assembly is combined with the inserted and established convenient aviation plug body structure, so that the use and operation are simpler and faster, and the test efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a cross-sectional view of an analog switch provided herein;
fig. 2 is a front view of an analog switch provided in the present application;
FIG. 3 is a side view of an analog switch provided herein;
in the figure: 1. an inner cylinder; 11. a first annular flange; 12. a third annular flange; 13. a notch; 14. an insulating base; 15. inserting a pin; 2. connecting sleeves; 21. a second annular flange; 3. a limiting sleeve; 4. sealing sleeves; 41. a groove; 42. anti-skid convex strips; 51. a first seal ring; 52. a second seal ring; 53. a third seal ring; 6. anti-skid lines; 100. fitting the clearance.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses an analog switch.
Referring to fig. 1 and fig. 2, an embodiment of an analog switch provided in an embodiment of the present application includes:
an avionic pod analog switch assembly; the aviation plug-in comprises an inner cylinder body 1, a sealing sleeve 4, a limiting sleeve 3 and a connecting sleeve 2; the sealing sleeve 4 is fixedly sleeved on the first end of the inner cylinder body 1; the connecting sleeve 2 is movably sleeved on the outer part of the inner cylinder body 1 and is close to the second end of the inner cylinder body 1; the outer peripheral wall of the inner cylinder body 1 is provided with a first annular flange 11 distributed around the circumference of the inner cylinder body 1; the limiting sleeve 3 is sleeved outside the inner cylinder body 1 and is positioned between the sealing sleeve 4 and the connecting sleeve 2, a first end of the limiting sleeve 3 is connected with the sealing sleeve 4, and a limiting gap for the connecting sleeve 2 to move along the axial direction of the inner cylinder body 1 is formed between a second end of the limiting sleeve 3 and the first annular flange 11; an insulating seat 14 is arranged in the inner cylinder body 1 and close to the second end of the inner cylinder body 1; an installation cavity for accommodating the analog switch assembly is defined by the inner end wall of the insulating seat 14, the inner side wall of the inner barrel 1 and the inner end wall of the sealing sleeve 4, and a plurality of contact pins 15 electrically connected with the analog switch assembly penetrate through the insulating seat 14.
Specifically, the whole structure of the aviation plug-in unit can be a cylindrical structure, and can be appropriately changed according to actual needs without limitation. Interior barrel 1 can inside be logical chamber structure, connects through setting up to be connected and can make things convenient for when the navigation inserts the body and peg graft and be connected with the bayonet joint that corresponds to realize more firm grafting cooperation. The limiting sleeve 3 can be connected with the sealing sleeve 4 under the action of the limiting sleeve, so that the limiting sleeve 3 can be relatively and fixedly connected with the inner cylinder body 1 through the sealing sleeve 4, and the integral connection and matching are more tight; simultaneously, set up first annular flange 11 on barrel 1 and can be used for backstop adapter sleeve 2 along the first end of barrel 1 to the excessive removal of second end direction in, simultaneously stop collar 3 can avoid adapter sleeve 2 to follow the excessive removal of the second end of barrel 1 to first end direction in to can enough provide the certain regulation removal space of adapter sleeve 2, guarantee adapter sleeve 2's use, can spacing fixed adapter sleeve 2 simultaneously. In this embodiment, the installation order of the navigation plug body may be that the connection sleeve 2 is firstly sleeved on the inner cylinder 1 along the first end of the inner cylinder 1 to the second end direction, then the position-limiting sleeve 3 is sleeved on the inner cylinder 1 along the first end of the inner cylinder 1 to the second end direction, then the sealing sleeve 4 is installed, and then the position-limiting sleeve 3 is connected with the sealing sleeve 4 after the sealing sleeve 4 is installed. In addition, the analog switch assembly in this embodiment can include the circuit board and install the analog switch chip on the circuit board, can realize customizing each contact pin 15 through the analog switch chip to conveniently satisfy the required needle number requirement of the secondary circuit of different terminal equipment, the suitability is better.
According to the technical scheme, the aviation plug body structure convenient to insert is constructed by arranging the inner barrel body 1, the sealing sleeve 4 fixedly sleeved on the first end of the inner barrel body 1, the connecting sleeve 2 sleeved on the inner barrel body 1 and used for connecting and fixing and the limiting sleeve 3 sleeved on the inner barrel body 1 and used for limiting the movement of the connecting sleeve 2; and then the analog switch assembly is arranged in the aviation plug and is electrically connected with a contact pin 15 arranged on the insulating base 14, and the contact pin 15 is connected with a secondary control output of a distribution automation switch terminal device to realize secondary loop current closed loop. Moreover, the analog switch assembly is combined with the inserted and established convenient aviation plug body structure, so that the use and operation are simpler and faster, and the test efficiency is improved.
An analog switch, comprising: an avionic pod analog switch assembly; the aviation plug-in comprises an inner cylinder body 1, a sealing sleeve 4, a limiting sleeve 3 and a connecting sleeve 2; the sealing sleeve 4 is fixedly sleeved on the first end of the inner cylinder body 1; the connecting sleeve 2 is movably sleeved on the outer part of the inner cylinder body 1 and is close to the second end of the inner cylinder body 1; the outer peripheral wall of the inner cylinder body 1 is provided with a first annular flange 11 distributed around the circumference of the inner cylinder body 1; the limiting sleeve 3 is sleeved outside the inner cylinder body 1 and is positioned between the sealing sleeve 4 and the connecting sleeve 2, a first end of the limiting sleeve 3 is connected with the sealing sleeve 4, and a limiting gap for the connecting sleeve 2 to move along the axial direction of the inner cylinder body 1 is formed between a second end of the limiting sleeve 3 and the first annular flange 11; an insulating seat 14 is arranged in the inner cylinder body 1 and close to the second end of the inner cylinder body 1; an installation cavity for accommodating the analog switch assembly is defined by the inner end wall of the insulating seat 14, the inner side wall of the inner barrel 1 and the inner end wall of the sealing sleeve 4, and a plurality of contact pins 15 electrically connected with the analog switch assembly penetrate through the insulating seat 14.
Furthermore, the inner wall of the connecting sleeve 2 is provided with a second annular flange 21 which is distributed around the circumference of the connecting sleeve 2 and movably abutted with the first annular flange 11, and the first end of the connecting sleeve 2 is movably abutted with the second end of the limiting sleeve 3. Specifically, a second annular flange 21 movably abutted against the first annular flange 11 may be provided on the inner wall of the connecting sleeve 2 at a position close to the first end, so as to realize the limiting effect of the first annular flange 11 on the connecting sleeve 2.
Further, a first internal thread wall section is arranged on the inner wall of the connecting sleeve 2 between the second annular flange 21 and the second end of the connecting sleeve 2; a fit clearance 100 is formed between the first inner threaded wall section and the outer peripheral wall of the inner cylinder body 1. Wherein, the inner wall of connecting sleeve 2 can set up first internal thread wall section, and during the grafting, fit clearance 100 can supply to be stretched into by the bayonet joint, and the rethread rotates connecting sleeve 2 and realize and by the threaded connection between the bayonet joint, connects more firmly.
Furthermore, the first end of the sealing sleeve 4 is of a closed structure, the second end of the sealing sleeve is provided with an opening into which the first end of the inner cylinder body 1 extends, and the inner wall of the sealing sleeve 4 is provided with a second inner thread wall section; and a first external thread wall section in thread fit with the second internal thread wall section is arranged on the inner cylinder body 1. Similarly, the sealing sleeve 4 can also be in threaded connection with the inner cylinder body 1 in a threaded connection mode, so that the disassembly and maintenance are more convenient.
Furthermore, grooves 41 which extend out of the opening and are distributed around the circumference of the sealing sleeve 4 are formed in the inner wall of the sealing sleeve 4 between the second inner thread wall section and the opening; a third internal thread wall section is arranged on the side wall of the groove 41; the first end of stop collar 3 stretches into in the recess 41, just stop collar 3 is in stretching into be equipped with on the cover section of recess 41 with third internal thread wall section screw thread fit's second external thread wall section. The purpose of the groove 41 is to facilitate connection and fixation with the position-limiting sleeve 3, wherein a sleeve section of the position-limiting sleeve 3 may be designed to have a matching size with the groove 41, so that the sleeve section of the position-limiting sleeve 3 can extend into the groove 41 and be fixedly connected with the sealing sleeve 4. The mounting process may be, for example, such that, after the sealing sleeve 4 has been mounted, the stop collar 3 can be rotated such that the sleeve section of the stop collar 3 projects into the recess 41 and is connected to the sealing sleeve 4. In order to improve the sealing performance of the connection, a sealant can be coated at the position of the connection gap.
Further, a first sealing ring 51 is arranged on the end wall of the groove 41; when the limiting sleeve 3 is in threaded connection with the sealing sleeve 4, the first end of the limiting sleeve 3 and the end wall of the groove 41 clamp the first sealing ring 51, so that the inner ring surface of the first sealing ring 51 is in contact fit with the outer peripheral wall of the inner cylinder 1. Because the stop collar 3 can rotate, a certain rotating gap can exist between the stop collar 3 and the inner barrel body 1, and the rotating gap is positioned between the stop collar 3 and the inner barrel body 1, so that the sealant coating operation is not good. Therefore, in this embodiment, the first sealing ring 51 is arranged on the end wall of the groove 41, and when the stop collar 3 is in threaded fit with the sealing sleeve 4, the first sealing ring 51 can be clamped and extruded between the first end of the stop collar 3 and the end wall of the groove 41, so that the first sealing ring 51 can extend to cling to the outer peripheral wall of the inner cylinder 1, and good sealing performance is achieved.
Furthermore, a second sealing ring 52 which is contacted and abutted against the first end of the inner cylinder body 1 is arranged in the sealing sleeve 4. Similarly, the second sealing ring 52 can further improve the overall sealing performance, and the use is safer.
Furthermore, a third annular flange 12 distributed around the circumference of the inner cylinder 1 is also arranged on the outer circumferential wall of the inner cylinder 1; the third flange is sleeved with a third sealing ring 52 which is in contact fit with the inner wall of the limiting sleeve 3, and the outer diameter of the third annular flange 12 is equal to the inner diameter of the second annular flange 21. The purpose of providing the third annular flange 12 on the outer peripheral wall of the inner cylinder 1 is to provide support for the stopper 3, and at the same time, the overall sealing performance can be further improved by the third seal ring 52 provided on the third annular flange 12. The first sealing ring 51, the second sealing ring 52 and the third sealing ring 52 in this application may be made of conventional rubber/silicone materials, and are not limited in particular. In addition, in the embodiment, the outer diameter of the third annular flange 12 is equal to the inner diameter of the second annular flange 21, so that the third limit flange is prevented from influencing the sleeved installation of the connecting sleeve 2. The outer diameter of the third position-limiting flange may also be smaller than the inner diameter of the second annular flange 21, which is not limited in particular.
Furthermore, stop collar 3 and all be equipped with anti-skidding line 6 on the adapter sleeve 2 periphery wall. The anti-skid grains 6 are arranged to facilitate rotation and installation. Correspondingly, a plurality of anti-skid convex strips 42 can be arranged on the sealing sleeve 4, and the sealing sleeve 4 is convenient to rotate and install.
Further, a notch 13 for indication is formed on the second end of the inner cylinder 1. The notch 13 for indication can prompt the plugging direction for an operator, so that the situation of mistaken plugging is reduced.
In this application, the appearance structure of seal cover 4, adapter sleeve 2 and stop collar 3 can design according to actual need, specifically does not do the restriction.
According to the technical scheme, the aviation plug body structure convenient to insert is constructed by arranging the inner barrel body 1, the sealing sleeve 4 fixedly sleeved on the first end of the inner barrel body 1, the connecting sleeve 2 sleeved on the inner barrel body 1 and used for connecting and fixing and the limiting sleeve 3 sleeved on the inner barrel body 1 and used for limiting the movement of the connecting sleeve 2; and then the analog switch assembly is arranged in the aviation plug and is electrically connected with a contact pin 15 arranged on the insulating base 14, and the contact pin 15 is connected with a secondary control output of a distribution automation switch terminal device to realize secondary loop current closed loop. Moreover, the analog switch assembly is combined with the inserted and established convenient aviation plug body structure, so that the use and operation are simpler and faster, and the test efficiency is improved.
In summary, the content of the present disclosure should not be construed as limiting the present disclosure, and those skilled in the art will readily appreciate that the scope of the present disclosure may be varied according to the concept of the present disclosure.
Claims (10)
1. An analog switch, comprising: an avionic pod analog switch assembly;
the aviation plug-in comprises an inner cylinder, a sealing sleeve, a limiting sleeve and a connecting sleeve;
the sealing sleeve is fixedly sleeved on the first end of the inner cylinder body;
the connecting sleeve is movably sleeved outside the inner cylinder body and is close to the second end of the inner cylinder body;
the outer peripheral wall of the inner cylinder body is provided with a first annular flange distributed around the circumference of the inner cylinder body;
the limiting sleeve is sleeved outside the inner cylinder body and positioned between the sealing sleeve and the connecting sleeve, a first end of the limiting sleeve is connected with the sealing sleeve, and a limiting gap for the connecting sleeve to move along the axial direction of the inner cylinder body is formed between a second end of the limiting sleeve and the first annular flange;
an insulating seat is arranged in the inner cylinder body and close to the second end of the inner cylinder body;
and an installation cavity for accommodating the analog switch assembly is enclosed among the inner end wall of the insulating seat, the inner side wall of the inner barrel and the inner end wall of the sealing sleeve, and a plurality of contact pins electrically connected with the analog switch assembly are arranged on the insulating seat in a penetrating manner.
2. An analog switch according to claim 1, wherein the inner wall of the connecting sleeve is provided with a second annular flange which is distributed around the circumference of the connecting sleeve and is movably abutted against the first annular flange, and the first end of the connecting sleeve is movably abutted against the second end of the limiting sleeve.
3. An analog switch according to claim 2, characterised in that the inner wall of the connecting sleeve is provided with a first internally threaded wall section between the second annular flange and the second end of the connecting sleeve;
and a fit clearance is formed between the first inner thread wall section and the outer peripheral wall of the inner cylinder body.
4. An analog switch according to claim 1, characterized in that the first end of the sealing sleeve is of a closed structure, the second end is provided with an opening into which the first end of the inner cylinder extends, and the inner wall of the sealing sleeve is provided with a second inner threaded wall section;
and a first external thread wall section in threaded fit with the second internal thread wall section is arranged on the inner cylinder body.
5. An analogue switch according to claim 4, characterised in that grooves extending out of the opening and distributed around the circumference of the sealing sleeve are provided in the inner wall of the sealing sleeve between the second internally threaded wall section and the opening;
a third internal thread wall section is arranged on the side wall of the groove;
the first end of the limiting sleeve stretches into the groove, and the limiting sleeve is arranged on the sleeve section stretching into the groove and is provided with a second external thread wall section in threaded fit with the third internal thread wall section.
6. An analog switch according to claim 5, characterised in that a first sealing ring is provided on the end wall of the recess;
when the limiting sleeve is in threaded connection with the sealing sleeve, the first end of the limiting sleeve and the end wall of the groove form clamping on the first sealing ring, so that the inner ring surface of the first sealing ring is in contact fit with the outer peripheral wall of the inner cylinder body.
7. An analog switch according to claim 1, characterised in that a second sealing ring is provided in said sealing sleeve, which abuts against the first end of said inner cylinder.
8. An analog switch according to claim 2, characterised in that the outer peripheral wall of the inner cylinder is provided with a third annular flange circumferentially distributed around the inner cylinder;
and a third sealing ring in contact fit with the inner wall of the limiting sleeve is sleeved on the third flange, and the outer diameter of the third annular flange is equal to the inner diameter of the second annular flange.
9. An analog switch according to claim 1, characterised in that the stop collar and the peripheral wall of the connecting sleeve are provided with anti-slip threads.
10. The analog switch according to claim 1, wherein the second end of the inner cylinder is provided with a notch for indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349614.XA CN111077393B (en) | 2019-12-24 | 2019-12-24 | Analog switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911349614.XA CN111077393B (en) | 2019-12-24 | 2019-12-24 | Analog switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111077393A true CN111077393A (en) | 2020-04-28 |
| CN111077393B CN111077393B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911349614.XA Active CN111077393B (en) | 2019-12-24 | 2019-12-24 | Analog switch |
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| CN (1) | CN111077393B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030030194A1 (en) * | 2001-07-20 | 2003-02-13 | Compagnie Generale Des Matieres Nucleaires | Powder homogenizing apparatus, its use, and a homogenizing method using said apparatus |
| CN202796525U (en) * | 2012-06-06 | 2013-03-13 | 武汉泰普变压器开关有限公司 | Protective cover structure for off-circuit tap-changer |
| CN205638307U (en) * | 2016-05-20 | 2016-10-12 | 重庆前卫海洋石油工程设备有限责任公司 | Tubing hanger's running tool |
| CN206351432U (en) * | 2016-12-30 | 2017-07-25 | 宜宾三江机械有限责任公司 | A kind of flexible clamp coupling sleeve extracting tool |
| CN206615884U (en) * | 2017-03-14 | 2017-11-07 | 广州日滨科技发展有限公司 | Switching device and elevator fire-fighting switch |
| CN208140873U (en) * | 2018-05-16 | 2018-11-23 | 广东电网有限责任公司 | A kind of insulating sleeve |
-
2019
- 2019-12-24 CN CN201911349614.XA patent/CN111077393B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030194A1 (en) * | 2001-07-20 | 2003-02-13 | Compagnie Generale Des Matieres Nucleaires | Powder homogenizing apparatus, its use, and a homogenizing method using said apparatus |
| CN202796525U (en) * | 2012-06-06 | 2013-03-13 | 武汉泰普变压器开关有限公司 | Protective cover structure for off-circuit tap-changer |
| CN205638307U (en) * | 2016-05-20 | 2016-10-12 | 重庆前卫海洋石油工程设备有限责任公司 | Tubing hanger's running tool |
| CN206351432U (en) * | 2016-12-30 | 2017-07-25 | 宜宾三江机械有限责任公司 | A kind of flexible clamp coupling sleeve extracting tool |
| CN206615884U (en) * | 2017-03-14 | 2017-11-07 | 广州日滨科技发展有限公司 | Switching device and elevator fire-fighting switch |
| CN208140873U (en) * | 2018-05-16 | 2018-11-23 | 广东电网有限责任公司 | A kind of insulating sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111077393B (en) | 2022-03-01 |
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