CN112904196B

CN112904196B - Well-sealed attitude sensor assembly for isolating switch and using method thereof

Info

Publication number: CN112904196B
Application number: CN202110489477.0A
Authority: CN
Inventors: 王茂祥
Original assignee: CHANGZHOU AITE TECHNOLOGY CO LTD; Changzhou Engineering and Technology Institute of Jiangsu University
Current assignee: CHANGZHOU AITE TECHNOLOGY CO LTD; Changzhou Engineering and Technology Institute of Jiangsu University
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-07-23
Anticipated expiration: 2041-05-06
Also published as: CN112904196A

Abstract

The invention relates to measuring equipment, in particular to a well-sealed attitude sensor assembly for an isolating switch and a using method thereof, wherein the well-sealed attitude sensor assembly for the isolating switch comprises: the attitude sensor comprises an attitude sensor body, an outer sleeve ring positioned above the attitude sensor body, an inner sleeve ring sleeved in the outer sleeve ring, and a plurality of upper binding posts arranged on the upper end surface of the inner sleeve ring, wherein a plurality of lower binding posts are arranged on the lower end surface of the outer sleeve ring, and the lower binding posts are electrically connected with the attitude sensor body; the outer side wall of the inner lantern ring is in threaded connection with a water blocking sleeve; an annular plugging groove is formed in the upper end face of the outer sleeve ring, and a water plugging ring body is hinged in the plugging groove; when the water plugging sleeve is screwed, the outer side wall of the water plugging sleeve is attached to the outer ring of the plugging groove, the water plugging ring body is pushed to overturn to be abutted to the inner lantern ring, the rainwater is blocked from entering the contact area of the conductive outer ring and the conductive inner ring, and the working stability of the posture sensor body is guaranteed.

Description

Well-sealed attitude sensor assembly for isolating switch and using method thereof

Technical Field

The invention relates to measuring equipment, in particular to a well-sealed attitude sensor assembly for an isolating switch and a using method thereof.

Background

The isolating switch is a switching device, is mainly used for isolating a power supply and switching off operation, and is used for connecting and cutting off a small current circuit, and has no arc extinguishing function.

A switch (switch), namely, in a separated position, an insulation distance meeting the specified requirement and an obvious disconnection mark are arranged between contacts; a switching device capable of carrying current in normal loop conditions and current in abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The isolating switch (commonly called as "knife switch") generally refers to a high-voltage isolating switch, i.e. an isolating switch with a rated voltage of more than 1kV, usually referred to as an isolating switch for short, is the most used electrical appliance in high-voltage switching electrical appliances, and the working principle and structure of the isolating switch are simpler, but due to large usage amount, the requirement on working reliability is high, and the isolating switch has great influence on the design, establishment and safe operation of a substation and a power plant. The main characteristic of the isolating switch is that it has no arc-extinguishing capability, and can only open and close the circuit under the condition of no load current. The isolating switch is used for each stage of voltage, is used for changing circuit connection or isolating lines or equipment from a power supply, has no current-breaking capacity, and can be operated only after other equipment is used for disconnecting the lines. Typically with an interlock to prevent inadvertent operation of the switch when loaded, a pin is sometimes required to prevent opening of the switch under the magnetic force of a large fault.

In the prior art, a disconnecting switch which judges the switching-on/off state by using an attitude sensor appears. For example, the device for detecting the opening and closing of the disconnecting switch on line disclosed in the chinese utility model patent with the publication number CN203445023U includes an induction rotating member installed on a flange below a porcelain bottle corresponding to a conductive arm of the disconnecting switch and a detection alarm module forming a detection loop with the induction rotating member.

However, the conventional attitude sensor assembly for the disconnecting switch is arranged outdoors, and has the following defects that the assembly cannot play a role in preventing wind and rain, and rainwater can permeate along the gap between the outer sleeve ring and the inner sleeve ring to influence the electric connection between the conductive outer ring and the conductive inner ring.

In order to solve the above problems, it is necessary to design an attitude sensor assembly for a disconnector which is well sealed.

Disclosure of Invention

The invention aims to provide a well-sealed attitude sensor assembly for an isolating switch.

In order to solve the above-mentioned technical problem, the present invention provides an attitude sensor module for a disconnecting switch, which has a good sealing property, and includes: the attitude sensor comprises an attitude sensor body, an outer sleeve ring positioned above the attitude sensor body, an inner sleeve ring sleeved in the outer sleeve ring, and a plurality of upper binding posts arranged on the upper end surface of the inner sleeve ring, wherein a plurality of lower binding posts arranged on the lower end surface of the outer sleeve ring are electrically connected with the attitude sensor body; the outer side wall of the inner lantern ring is in threaded connection with a water blocking sleeve; an annular plugging groove is formed in the upper end face of the outer sleeve ring, and a water plugging ring body is hinged in the plugging groove; when the water plugging sleeve is screwed, the outer side wall of the water plugging sleeve is attached to the outer ring of the plugging groove, and the water plugging ring body is pushed to overturn to be abutted to the inner lantern ring.

Furthermore, two side walls of the water plugging ring body are respectively provided with an inclined plane, and the two inclined planes are arranged in parallel; after the water plugging ring body is turned over, one inclined plane is abutted to the inner lantern ring, and the other inclined plane is abutted to the inner bottom wall of the plugging groove.

Furthermore, a plurality of support columns are fixedly connected to the inner bottom wall of the plugging groove, and the support columns are annularly and equidistantly distributed; the height of the supporting column is smaller than the depth of the plugging groove, and the water plugging ring body is hinged to the top of the supporting column; wherein the water plugging ring body can turn around the top of the supporting column.

Further, the width of the water plugging ring body is equal to the opening width of the plugging groove; a plugging spring is arranged in the plugging groove, and two ends of the plugging spring are respectively and fixedly connected with the bottom end surface of the water plugging ring body and the inner bottom wall of the plugging groove; after the water plugging sleeve is unscrewed, the plugging spring pulls the water plugging ring body back to plug the opening of the plugging groove.

Furthermore, a pressing part is sleeved in the inner sleeve ring, the top of the pressing part protrudes out of the inner sleeve ring, the bottom of the pressing part can penetrate through the attitude sensor body, and an anti-falling part is sleeved at the bottom of the pressing part; the anti-falling part can block the pressing part from falling off from the attitude sensor body; the pressing part is internally provided with a drainage channel which extends to the bottom of the pressing part; wherein pressing the pressing part from the top can extrude rainwater in the inner collar out of the drainage channel; the pressing portion can be pressed until the coming-off prevention portion comes off from the pressing portion.

Further, the pressing part comprises a button, a pressing shaft and a linkage piece, wherein the button is arranged in the inner sleeve ring in an inner sleeve mode, the pressing shaft is positioned on the central axis of the button, and the linkage piece is positioned between the button and the pressing shaft; the button can slide along the inner side wall of the inner lantern ring; the pressing shaft penetrates through the attitude sensor body, the anti-falling part is fixed at the bottom of the pressing shaft, and the water drainage channel extends to the bottom of the pressing shaft; wherein press the button, through the linkage piece linkage press the axle lifting and with anticreep portion breaks away from.

Furthermore, a guide groove which penetrates through the top of the pressing shaft in the radial direction is formed in the top of the pressing shaft, and the guide groove is obliquely arranged; a supporting sleeve is fixedly connected in the inner sleeve ring, and the supporting sleeve is sleeved on the pressing shaft; the supporting sleeve is provided with a guide groove which penetrates in the radial direction; the linkage piece comprises a linkage block sliding along the guide groove and a guide block arranged on the inner side wall of the button in a mirror image manner; the linkage block penetrates through the guide groove; two opposite side walls of the two linkage blocks are obliquely arranged and are parallel to each other, and the two side walls of the linkage blocks are respectively attached to the two guide blocks; wherein pressing the button can push the linkage block to slide along the guide slot through the guide block, and push the pressing shaft to lift along the support sleeve through the linkage block.

Furthermore, the inner side wall of the inner sleeve ring is fixedly connected with a sealing disc penetrated by the pressing shaft, the outer side wall of the sealing disc is sealed with the inner side wall of the inner sleeve ring, and the inner side wall of the sealing disc is sealed with the pressing shaft; rainwater flowing in from between the button and the inner collar can be stored above the sealing disc; the supporting sleeve is fixed in the center of the upper top surface of the sealing disc; a water outlet is formed in the top of the pressing shaft and is communicated with the water drainage channel, and the water outlet is positioned below the sealing disc; after the button is pressed until the water outlet is positioned above the sealing disc, rainwater can be discharged through the water drainage channel.

Furthermore, a water outlet is formed in the bottom of the pressing shaft and is communicated with the water drainage channel; the anti-falling part comprises an anti-falling ring sleeved at the bottom of the pressing shaft and an anti-falling sleeve fixed at the top of the anti-falling ring, and the water outlet is positioned in the anti-falling sleeve; the diameter of the upper end face of the anti-falling sleeve is larger than that of the lower end face of the anti-falling sleeve, and the anti-falling sleeve is suitable for containing rainwater flowing out of the water drainage channel; and when the button is pressed, the anti-falling sleeve abuts against the bottom of the attitude sensor body.

The invention also provides a using method of the attitude sensor component for the isolating switch with good sealing performance, which comprises the steps of providing the attitude sensor component for the isolating switch with good sealing performance; after the inner lantern ring is installed on the outer lantern ring, the water plugging sleeve is screwed tightly so that the water plugging ring body is overturned to be abutted against the inner lantern ring; pressing the button for the first time to lift the pressing shaft upwards; when the pressing shaft is lifted to the water outlet and positioned above the sealing disc, rainwater is discharged into the anti-falling sleeve through the water discharge channel; when the pressing shaft is lifted until the anti-falling sleeve abuts against the attitude sensor body, rainwater in the anti-falling sleeve is sprayed to the bottom of the attitude sensor body; and pressing the button for the second time to separate the anti-drop ring from the pressing shaft.

The attitude sensor component for the isolating switch has the beneficial effects that the attitude sensor component for the isolating switch with good sealing performance is provided, and the outer side wall of the inner lantern ring is in threaded connection with a water blocking sleeve; the upper end surface of the outer sleeve ring is provided with an annular plugging groove which is communicated with the outer side of the water plugging sleeve, so that rainwater falling into the plugging groove can be discharged from inside to outside, the rainwater is prevented from flowing between the inner sleeve ring and the outer sleeve ring, the water plugging sleeve and the plugging groove are spliced to realize primary sealing between the inner sleeve ring and the outer sleeve ring, and particularly, after the inner sleeve ring is installed on the outer sleeve ring, the outer side wall of the water plugging sleeve is mutually attached to the outer side wall of the plugging groove by screwing the water plugging sleeve, so that the effect of blocking rainwater from entering the plugging groove is realized, and the rainwater is further blocked from entering the contact area of the conductive outer ring and the conductive inner ring; the working stability of the attitude sensor body is greatly ensured;

the shutoff inslot articulates there is a water shutoff ring body, through water shutoff ring body and interior lantern ring cooperation in order to realize the second grade between the lantern ring and the outer lantern ring sealed, specifically, screws during water shutoff sleeve, water shutoff sleeve can promote water shutoff ring body upset, and water shutoff ring body overturn at most in the upset process to with interior lantern ring offsets, water shutoff ring body still offsets with the interior diapire in shutoff groove this moment, blocks through water shutoff ring body that the rainwater enters into the region of electrically conductive outer loop and electrically conductive inner ring contact, has further guaranteed the job stabilization nature of attitude sensor body.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a perspective view of a preferred embodiment of a well-sealed attitude sensor assembly for a disconnector, according to the invention;

FIG. 2 is a schematic structural diagram of a preferred embodiment of an initial state of a well-sealed attitude sensor assembly for a disconnector according to the invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a cross-sectional view of a preferred embodiment of the upper terminal stud and electrical coupling mounting of the present invention;

FIG. 5 is a cross-sectional view of a preferred embodiment of the present invention lower terminal stud and electrical coupling installation;

FIG. 6 is a perspective view of a preferred embodiment of the electric union of the present invention;

FIG. 7 is a schematic structural diagram of a preferred embodiment of an initial state of a well-sealed attitude sensor assembly for a disconnector according to the invention;

FIG. 8 is a schematic structural diagram of a preferred embodiment of an initial state of a well-sealed attitude sensor assembly for a disconnector according to the invention;

FIG. 9 is a schematic structural view of a preferred embodiment of the linkage mounting of the present invention;

FIG. 10 is a schematic structural view of a preferred embodiment of the linkage block of the present invention shown separated from the pressing shaft;

FIG. 11 is a schematic structural view of a preferred embodiment of an outer collar of the present invention;

fig. 12 is a schematic structural view of a preferred embodiment of the inner collar of the present invention.

In the figure:

the attitude sensor body 1, the through hole 11;

the outer collar 2, the lower connecting post 21, the conductive inner ring 22, the plugging groove 23, the water plugging ring body 24, the inclined plane 25, the supporting post 26, the plugging spring 27 and the plugging block 28;

the water plugging device comprises an inner lantern ring 3, an upper binding post 31, a conductive outer ring 32 and a water plugging sleeve 33;

the pressing part 4, the drainage channel 41, the drainage opening 411, the water outlet 412, the button 42, the dome 421, the pressing shaft 43, the guide groove 431, the limit ring 432, the linkage 44, the linkage block 441, the slider 4411, the guide block 4412, the guide block 442, the support sleeve 45, the guide groove 451, the seal disc 46 and the pressing spring 47;

a retaining part 5, a retaining ring 51, a retaining sleeve 52;

waterproof sleeve 61, water guide opening 611, electric union sleeve 62, electric union body 63, go up electric union piece 631, lower electric union piece 632, waterproof head 64, stretch out seam 641.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Example one

As shown in fig. 1 to 12, the conventional attitude sensor assembly for a disconnector is placed outdoors, and includes: the attitude sensor comprises an attitude sensor body 1, an outer sleeve ring 2 positioned above the attitude sensor body 1, and an inner sleeve ring 3 sleeved in the outer sleeve ring 2, wherein the upper end face of the inner sleeve ring 3 is provided with a plurality of upper wiring posts 31, the lower end face of the outer sleeve ring 2 is provided with a plurality of lower wiring posts 21, the lower wiring posts 21 are electrically connected with the attitude sensor body 1, the upper wiring posts 31 and the lower wiring posts 21 are also electrically connected, when the inner sleeve ring 3 rotates relative to the outer sleeve ring 2, the upper wiring posts 31 and the lower wiring posts 21 are kept electrified, the specific electrical connection mode is as follows, the outer wall of the inner sleeve ring 3 is provided with a plurality of conductive outer rings 32, each upper wiring post 31 is matched with one conductive outer ring 32, and the conductive outer rings 32 are electrically connected with the upper wiring posts 31; the inner wall of the outer collar 2 is provided with a plurality of conductive inner rings 22, each lower wiring column 21 is matched with one conductive inner ring 22, and the conductive inner rings 22 are electrically connected with the lower wiring columns 21; however, there is a disadvantage that it cannot play a role of wind and rain protection by itself, and rainwater can infiltrate along the gap between the outer collar 2 and the inner collar 3 to affect the electrical connection between the conductive outer ring 32 and the conductive inner ring 22. In order to solve the above problems, the following schemes need to be designed:

the embodiment provides a well-sealed attitude sensor assembly for a disconnecting switch, wherein a water blocking sleeve 33 is connected to the outer side wall of an inner lantern ring 3 in a threaded mode; an annular plugging groove 23 is formed in the upper end face of the outer sleeve 2, the plugging groove 23 is communicated with the outer side of the water plugging sleeve 33, rainwater falling into the plugging groove 23 can be discharged from inside to outside, the rainwater is prevented from flowing between the inner sleeve 3 and the outer sleeve 2, the water plugging sleeve 33 is spliced with the plugging groove 23 to realize primary sealing between the inner sleeve 3 and the outer sleeve 2, specifically, after the inner sleeve 3 is installed on the outer sleeve 2, the water plugging sleeve 33 is screwed, the outer side wall of the water plugging sleeve 33 is mutually attached to the outer side wall of the plugging groove 23 to realize the effect of blocking rainwater from entering the plugging groove 23, and further, the rainwater enters an area where the conductive outer ring 32 is in contact with the conductive inner ring 22; the working stability of the attitude sensor body 1 is greatly ensured.

In order to further prevent rainwater from entering a contact area between the conductive outer ring 32 and the conductive inner ring 22, a water plugging ring body 24 is hinged in the plugging groove 23, the water plugging ring body 24 is matched with the inner sleeve ring 3 to realize secondary sealing between the inner sleeve ring 3 and the outer sleeve ring 2, specifically, when the water plugging sleeve 33 is screwed, the water plugging sleeve 33 can push the water plugging ring body 24 to turn over, the water plugging ring body 24 turns over at most to abut against the inner sleeve ring 3 in the turning process, at this moment, the water plugging ring body 24 also abuts against the inner bottom wall of the plugging groove 23, the water plugging ring body 24 blocks rainwater from entering an area where the conductive outer ring 32 is in contact with the conductive inner ring 22, and the working stability of the attitude sensor body 1 is further ensured.

In order to improve the secondary sealing effect among the water plugging ring body 24, the inner sleeve ring 3 and the outer sleeve ring 2, two inclined planes 25 are respectively arranged on two side walls of the water plugging ring body 24, and the two inclined planes 25 are arranged in parallel; wherein after 24 upset of water shutoff ring body, an inclined plane 25 with interior lantern ring 3 offsets, and is concrete, and an inclined plane 25 that is located 24 inner circles of water shutoff ring body offsets with interior lantern ring 3, another inclined plane 25 with the inner bottom wall of shutoff groove 23 offsets, and another inclined plane 25 that is located 24 outer circles of water shutoff ring body offsets with the inner bottom wall of shutoff groove 23, through setting up inclined plane 25 for between water shutoff ring body 24 and the interior lantern ring 3, all through face and surface contact between the inner bottom wall of water shutoff ring body 24 and shutoff groove 23, increased area of contact, thereby improved sealed effect.

Specifically, the mode of installing the water plugging ring body 24 is as follows, a plurality of support columns 26 are fixedly connected to the inner bottom wall of the plugging groove 23, the support columns 26 are distributed in an annular and equidistant mode, the water plugging ring body 24 is hinged to the top of the support columns 26, the water plugging ring body 24 is further installed, the installation stability of the water plugging ring body 24 is improved due to the design of the support columns 26, and the situation of water leakage between the water plugging ring body 24 and the inner sleeve ring 3 or between the water plugging ring body 24 and the inner bottom wall of the plugging groove 23 is avoided. The outer ring of the water plugging ring body 24 extends to the lower part of the water plugging sleeve 33, and when the water plugging sleeve 33 is screwed, the water plugging sleeve 33 can push the water plugging ring body 24 to turn around the hinge point between the water plugging ring body 24 and the support column 26.

In order to avoid rainwater entering the blocking groove 23 when the inner sleeve ring 3 and the outer sleeve ring 2 are not installed, the height of the supporting column 26 is designed to be smaller than the depth of the blocking groove 23, the difference between the height of the supporting column 26 and the depth of the blocking groove 23 is equal to the thickness of the water blocking ring body 24, the width of the water blocking ring body 24 is equal to the opening width of the blocking groove 23, and then the water blocking ring body 24 can also play a role in blocking the blocking groove 23, so that rainwater is prevented from entering the blocking groove 23, and the rainwater is prevented from entering the area where the conductive outer ring 32 and the conductive inner ring 22 are contacted after the inner sleeve ring 3 and the outer sleeve ring 2 are installed.

In order to realize that the water plugging ring body 24 plugs the plugging groove 23, a plugging spring 27 is arranged in the plugging groove 23, and two ends of the plugging spring 27 are respectively fixedly connected with the bottom end surface of the water plugging ring body 24 and the inner bottom wall of the plugging groove 23; when the water plugging sleeve 33 is screwed, the water plugging sleeve 33 pushes the water plugging ring body 24 to turn over and stretches the plugging spring 27, and after the water plugging sleeve 33 is unscrewed, the plugging spring 27 rebounds and pulls the water plugging ring body 24 back to plug the opening of the plugging groove 23.

In order to further improve sealed effect, can set up a sprue 28 at water shutoff sleeve 33's lateral wall, this sprue 28's longitudinal section is isosceles right triangle, this right angled triangle's two right-angle sides laminate water shutoff sleeve 33's lateral wall and outer thimble 2's up end respectively, and then realize tertiary sealed, this right angled triangle's hypotenuse can also outwards guide the rainwater simultaneously, reduce rainwater infiltration, sprue 28 and water shutoff ring body 24 work of mutually supporting simultaneously, sprue 28 is as outermost sealing measure, water shutoff ring body 24 is as the sealing measure of inlayer, the biggest rainwater infiltration of avoiding of its work of mutually supporting.

Note that the rain water may cause a short circuit after contacting the upper contact terminal 31 or the lower contact terminal 21, which may affect the operation of the posture sensor body 1. In order to solve the above problems, the following schemes need to be designed: the waterproof sleeves 61 are sleeved outside the upper wiring column 31 and the lower wiring column 21, the inner wall of each waterproof sleeve 61 is provided with an electric connection part, when the lower wiring column 21 is electrically connected, the wiring is inserted into the corresponding waterproof sleeve 61 from bottom to top until the waterproof sleeve is contacted with the electric connection part, the wiring is continuously pushed until the electric connection part deforms, and the lower wiring column 21 is conducted with the wiring through the electric connection part; when the wiring is connected with the wiring terminal 31, the wiring is inserted into the corresponding waterproof sleeve 61 from top to bottom to contact with the electric connection part, the wiring is continuously pushed to deform to the electric connection part, and the wiring terminal 31 and the wiring are conducted through the electric connection part. Wrap up terminal 31 and terminal 21 down respectively through waterproof sleeve 61 in order to avoid terminal 31 and terminal 21 and the contact of rainwater down, and then guaranteed attitude sensor body 1's job stabilization nature.

The specific structure of the electric connection part is as follows, the electric connection part comprises two electric connection sleeves 62 which are arranged in an up-down back-to-back manner, the two electric connection sleeves 62 are respectively and fixedly connected with the waterproof sleeve 61, the electric connection sleeves 62 are bowl-shaped, the openings of the two electric connection sleeves 62 are oppositely arranged, a cavity is formed between the two electric connection sleeves 62, rainwater can flow into the waterproof sleeve 61 along the inner side wall of the waterproof sleeve 61, but due to the existence of the upper electric connection sleeve 62, the rainwater can be only collected between the upper electric connection sleeve 62 and the waterproof sleeve 61, when the rainwater is accumulated to the state that the rainwater does not pass through the electric connection sleeve 62, the rainwater can enter the cavity, an electric connection body 63 is arranged between the two electric connection sleeves 62, namely, the electric connection body 63 is positioned in the cavity, the electric connection body 63 is fixedly connected on the inner side wall of the waterproof sleeve 61, each electric connection sleeve 62 is provided with a waterproof head 64, and the waterproof head 64 is positioned at one side of the back-to-back of the electric connection sleeve 62, the waterproof head 64 plays a role of a one-way valve when not being conducted, namely the electric connector 63 can penetrate out of the waterproof head 64, and rainwater between the electric connecting sleeve 62 and the waterproof sleeve 61 cannot penetrate through the waterproof head 64; the utility model discloses a rainwater drainage device, including waterproof head 64, electric conjuncted body 63, waterproof head 64, the middle part of waterproof head 64 is seted up one and is stretched out seam 641 and realize stretching out of electric conjuncted body 63, stretch out the mutual laminating of lateral wall when not switching on of seam 641 and seal, stretch out seam 641 under the non-conducting state and be the closure state in order to block rainwater entering cavity promptly, and stretch out seam 641 and can be given the overhead-open by electric conjuncted body 63, and then electric conjuncted body 63 stretches out behind seam 641 and contact with wiring or upper terminal 31 or lower terminal 21 to the realization switches on.

In order to maintain the conduction stability, the electrical connector 63 may be divided into two parts, namely, an upper electrical connector 631 and a lower electrical connector 632, and the conduction achieved by the upper electrical connector 631 and the lower electrical connector 632 respectively can ensure more stable contact, and during the conduction, in order to avoid the upper electrical connector 631 and the lower electrical connector 632 being disconnected and conducted in a staggered manner, the upper electrical connector 631 and the lower electrical connector 632 may be vertically arranged, and the upper electrical connector 631 and the lower electrical connector 632 partially overlap each other, and the upper electrical connector 631 and the lower electrical connector 632 are fixed to the inner side wall of the waterproof sleeve 61 at the overlapping portion, so that the installation stability of the upper electrical connector 631 and the lower electrical connector 632 is better, and the conduction stability is better. In order to accommodate the extension of the upper and lower electric connecting

pieces

631 and 632, the extending slits 641 of the two waterproof heads 64 are also vertically disposed. In the present embodiment, the upper posts 31 are always in conduction with the corresponding lower electrical connection piece 632, and the lower posts 21 are adapted to be in conduction with the upper electrical connection piece 631.

It should be noted that, when rainwater between the waterproof sleeve 61 and the electrical connection sleeve 62 cannot be drained, and rainwater that may infiltrate between the two electrical connection sleeves 62 accumulates for a long time, and it is usually necessary to manually suck out rainwater between the waterproof sleeve 61 and the electrical connection sleeve 62 during connection, so as to connect the wires, which is relatively troublesome and time-consuming, in order to solve the above problems, it is necessary to design a solution in which a water guide opening 611 is opened on a side wall of the waterproof sleeve 61, the water guide opening 611 extends inward from an outer side wall of the waterproof sleeve 61, and the water guide opening 611 is located above a connection point between the upper electrical connection sleeve 62 and the waterproof sleeve 61, so that rainwater that flows between the waterproof sleeve 61 and the electrical connection sleeve 62 can be drained through the water guide opening 611, and in order to avoid rainwater outside the waterproof sleeve 61 flowing back inward through the water guide opening 611, the water guide opening 611 may be obliquely disposed, and specifically, the opening height of the water guide opening 611 on the inner side wall of the waterproof sleeve 61 is greater than the opening height of the water guide opening 611 on the outer side wall of the waterproof sleeve 61, so that rainwater outside the waterproof sleeve 61 enters the waterproof sleeve 61 through the water guide opening 611 and needs to go through a climbing process.

It should be noted that, because the attitude sensor assembly cannot play the role of wind and rain protection, it is easy to be soaked in water and corroded; after the attitude sensor assembly enters water, the assembly and disassembly are troublesome, and time and labor are wasted. In order to solve the above problems, the following schemes need to be designed:

a pressing part 4 is sleeved in the inner sleeve ring 3, the pressing part 4 is composed of an upper part and a lower part, the upper half part of the pressing part 4 can slide downwards along the inner wall of the inner sleeve ring 3 after the pressing part 4 receives pressing force, the lower half part of the pressing part 4 can slide upwards, when the pressing part 4 is not pressed, the top of the pressing part 4 protrudes out of the top end surface of the inner sleeve ring 3, the area of the pressing part 4 protruding out of the inner sleeve ring 3 is the distance that the pressing part 4 can be pressed, meanwhile, the bottom of the pressing part 4 penetrates through the posture sensor body 1 and then protrudes out of the posture sensor body 1, an anti-falling part 5 is sleeved outside the bottom of the pressing part 4, and the anti-falling part 5 is fixed with the pressing part 4 through friction force, so that in the process that the lower half part of the pressing part 4 slides upwards, when the force pressing the pressing part 4 is small, the anti-falling part 5 can block the pressing part 4 from the posture sensor body 1, so that the detachment prevention portion 5 plays a role of reverse detachment; when the power of pressing splenium 4 is great when pressing down, anticreep portion 5 can be followed and pressed the bottom of splenium 4 and drop, thereby realize attitude sensor body 1 and outer thimble 2 quick dismantlement, and when installing again after the dismantlement, can adorn anticreep portion 5 earlier and press splenium 4 bottom, it is right to pass attitude sensor body 1 with 5 top-down of anticreep portion directly again, also can be earlier press splenium 4 top-down to pass attitude sensor body 1 after, again with 5 covers of anticreep portion in the bottom of pressing splenium 4, two kinds of modes are installed all more portably like this, and then realize quick assembly disassembly, time saving and labor saving.

Sealing processing between the inner sleeve ring 3 and the outer sleeve ring 2 can avoid electrical connection between the rainwater short circuit conductive outer ring 32 and the conductive inner ring 22, rainwater can still enter from the space between the inner sleeve ring 3 and the pressing part 4, the pressing part 4 needs to be detached from the posture sensor body 1 for cleaning, in order to realize cleaning of rainwater without detaching the posture sensor body 1, a scheme is needed to be designed, a water drainage channel 41 is arranged in the pressing part 4, the water drainage channel 41 extends to the bottom of the pressing part 4, when the pressing part 4 is pressed from the top to the anti-falling part 5 is detached from the pressing part 4, rainwater in the inner sleeve ring 3 is extruded from the water drainage channel 41, drainage is carried out in such a way, the pressing part 4 does not need to be detached, and convenience is provided for cleaning of rainwater.

The structure of the specific pressing part 4 is as follows, the pressing part 4 comprises a button 42 which is sleeved in the inner lantern ring 3, the button 42 is of a sleeve structure with a sealed top, the outer side wall of the button 42 is attached to the inner side wall of the inner lantern ring 3, the button 42 can slide along the inner side wall of the inner lantern ring 3, and the button 42 is the upper half part of the pressing part 4; a pressing shaft 43 is arranged on the central axis of the button 42, the pressing shaft 43 penetrates through the attitude sensor body 1, the anti-falling part 5 is fixed at the bottom of the pressing shaft 43, the drainage channel 41 is arranged in the pressing shaft 43 and extends to the bottom of the pressing shaft 43, and the pressing shaft 43 is the lower half part of the pressing part 4; a linkage piece 44 is further arranged between the button 42 and the pressing shaft 43, and through the arrangement of the linkage piece 44, when the button 42 is pressed for the first time, the button 42 is linked with the pressing shaft 43 to lift through the linkage piece 44; when the push button 42 is pushed twice, the push shaft 43 is disengaged from the retaining portion 5.

The button 42 and the pressing shaft 43 are linked in a specific manner that a guide groove 431 which penetrates through in the radial direction is formed in the top of the pressing shaft 43, the guide groove 431 is arranged in an inclined manner, and the height of the left side of the guide groove 431 is higher than that of the right side of the guide groove 431; a supporting sleeve 45 is fixedly connected in the inner lantern ring 3, the supporting sleeve 45 is sleeved on the pressing shaft 43 in a sleeved mode, the pressing shaft 43 slides along the supporting sleeve 45, the inner side wall of the supporting sleeve 45 is attached to the outer side wall of the pressing shaft 43, the supporting sleeve 45 further plays a role in guiding the pressing shaft 43, in order to avoid clamping when the pressing shaft 43 slides, a gap can exist between the pressing shaft 43 and the supporting sleeve 45, so that the contact area between the pressing shaft 43 and the supporting sleeve 45 is reduced, the friction force between the pressing shaft 43 and the supporting sleeve 45 is reduced, the sliding smoothness of the pressing shaft 43 is improved, meanwhile, the surface tension of rainwater between the supporting sleeve 45 and the pressing shaft 43 is reduced due to the arrangement of the gap, and the rainwater can be discharged through the drainage channel 41 more easily; the supporting sleeve 45 is provided with a guide groove 451 which penetrates through the supporting sleeve 45 in the radial direction, specifically, two side walls of the supporting sleeve 45 are respectively provided with a groove, the two grooves are oppositely arranged and are communicated with each other, and two ends of the guide groove 431 are respectively positioned in the area of the guide groove 451; the linkage piece 44 has a specific structure that the linkage piece 44 comprises a linkage block 441 sliding along the guide groove 451, the linkage block 441 is as high as the guide groove 451, the linkage block 441 is attached to the upper top wall and the lower bottom wall of the guide groove 451 during the sliding process of the linkage block 441, the guide groove 451 guides the linkage block 441, the linkage block 441 passes through the guide groove 431, the pressing shaft 43 can be driven to lift through the guide groove 431 during the sliding process of the linkage block 441 along the guide groove 451, specifically, when the linkage block 441 slides from left to right, the pressing shaft 43 slides upwards, and when the linkage block 441 slides from right to left, the pressing shaft 43 slides downwards; two guide blocks 442 are arranged on the inner side wall of the button 42 in a mirror image manner; the two opposite side walls of the two guide blocks 442 are obliquely arranged and are parallel to each other, the two side walls of the linkage block 441 are respectively attached to the two guide blocks 442, namely the two side walls of the linkage block 441 are obliquely arranged and are parallel to each other, the left-right sliding of the linkage block 441 is pushed by the left guide block 442 when the button 42 is pressed, and the right-left sliding of the linkage block 441 is pushed by the right guide block 442 when the button 42 is released; specifically, pressing the button 42 can bring the guide block 442 downward, and the linkage block 441 is pushed downward by the left guide block 442 to slide along the guide groove 451 from left to right, so that the linkage block 441 slides and pushes the pressing shaft 43 to lift along the support sleeve 45; after the button 42 is released, the button 42 is lifted to drive the guide block 442 to move upwards, the linkage block 441 is pushed upwards by the guide block 442 on the right side to slide along the guide groove 451 from right to left, and the linkage block 441 slides and pushes the pressing shaft 43 to descend and reset along the supporting sleeve 45.

The specific fixing mode of the supporting sleeve 45 is as follows, the inner side wall of the inner lantern ring 3 is fixedly connected with a sealing disc 46 penetrated by the pressing shaft 43, the outer side wall of the sealing disc 46 is sealed with the inner side wall of the inner lantern ring 3, and the inner side wall of the sealing disc 46 is sealed with the pressing shaft 43; rainwater flowing in from between the button 42 and the inner collar 3 can be stored above the sealing disc 46; the support sleeve 45 is fixed to the center of the upper top surface of the seal disk 46.

The specific structure of the linkage block 441 is as follows, the linkage block 441 includes two sliders 4411 and a guide block 4412, the two sliders 4411 are respectively fixed at two ends of the guide block 4412, the height of the sliders 4411, the guide block 4412 and the guide groove 451 is equal, the sliders 4411 can be attached to the inner top wall of the guide groove 451 and the upper end surface of the seal disc 46 to slide, specifically, when the guide block 4412 slides from left to right, the slider 4411 attaching guide groove 451 at the right side is changed into the slider 4411 attaching guide groove 451 at the left side, and when the guide block 4412 slides from right to left, the slider attaching guide groove 451 at the left side is changed into the slider 4411 attaching guide groove 451 at the right side; the opposite side walls of the two sliders 4411 are obliquely arranged and parallel to each other, the opposite side walls of the two sliders 4411 are respectively attached to the two guide blocks 442, and the guide blocks 4412 penetrate through the guide grooves 431 and push the pressing shaft 43 to ascend and descend when sliding through the guide blocks 4412.

It should be noted that, after the button 42 is pressed, the automatic reset of the button 42 cannot be realized, and the button 42 needs to be manually lifted, which is time-consuming and labor-consuming, and the button 42 does not have a good holding stress point, and the manual operation is difficult, in order to solve the above problems, it is necessary to design a solution in which the pressing portion 4 further includes a pressing spring 47, and both ends of the pressing spring 47 are respectively fixedly connected with the top wall of the pressing shaft 43 and the inner top wall of the button 42; when the push button 42 is pressed to lift the push shaft 43, the push spring 47 is compressed; after releasing the button 42, the pressing spring 47 rebounds to push the button 42 to return.

A specific rainwater discharging manner is that a water outlet 411 is formed at the top of the pressing shaft 43, the water outlet 411 extends along the radial direction of the pressing shaft 43, so that rainwater flows inwards from the outer ring of the pressing shaft 43, meanwhile, in order to ensure the uniformity of rainwater flow, a plurality of water outlets 411 can be formed, and the water outlets 411 are uniformly distributed in the circumferential direction, the water outlet 411 is communicated with the water drainage channel 41, the water outlet 411 is obliquely arranged, so that rainwater on the sealing disc 46 flows into the water drainage channel 41, rainwater remained in the water outlet 411 is reduced, rainwater backflow in the water drainage channel 41 is avoided, the water outlet 411 is positioned below the sealing disc 46, therefore, when the button 42 is pressed to lift the pressing shaft 43 to the position that the water outlet 411 is positioned above the sealing disc 46, rainwater can be discharged through the water drainage channel 41, namely when the button 42 is pressed for the first time, the rainwater in the inner lantern ring 3 is drained, the button 42 is automatically reset after the button 42 is loosened, and the button 42 is detached after being pressed for the second time.

In order to further ensure that rainwater is completely squeezed out, the top of the button 42 is provided with a dome 421, and the dome 421 has flexibility; the pressing spring 47 is fixed at the bottom of the dome 421, and after the pressing button 42 is exposed to the water outlet 411, the pressing dome 421 compresses air in the button 42, rainwater in the water drainage channel 41 is drained through air pressure, so that rainwater retention is avoided, and the anti-falling part 5 plays a role in avoiding separation of the outer collar 2 and the attitude sensor body 1 in the drainage process.

In this embodiment, the dome 421 is pressed when the water outlet 411 does not expose the sealing disc 46, at this time, the area between the sealing disc 46 and the button 42 is a sealing structure, the effect of pressing the button 42 is achieved by pressing the dome 421, and after the water outlet 411 exposes the sealing disc 46, the dome 421 can be pressed to be downwards sunken to compress air, so that the whole operation can achieve the effects of lifting the pressing shaft 43 and discharging rainwater only by pressing the dome 421, which greatly facilitates the disassembly and cleaning of the attitude sensor body 1, and due to the existence of air pressure in the inner collar 3, the dome 421 has certain damping when being pressed, and the use comfort is better compared with the mode of directly pressing the button 42.

Specifically, a plurality of water outlets 412 are formed in the bottom of the pressing shaft 43, the water outlets 412 are communicated with the water drainage channel 41, the water outlets 412 extend in the radial direction of the pressing shaft 43, so that rainwater flows outwards from the center of the pressing shaft 43 and flows into the anti-falling part 5, and the water outlets 412 are uniformly distributed in the circumferential direction to ensure the uniform flowing of rainwater.

The anti-drop part 5 comprises an anti-drop ring 51 sleeved at the bottom of the pressing shaft 43 and an anti-drop sleeve 52 fixed at the top of the anti-drop ring 51, and the water outlet 412 is located in the anti-drop sleeve 52, so that the anti-drop sleeve 52 is suitable for containing rainwater flowing out of the drainage channel 41; the up end diameter of anticreep sleeve 52 is greater than down the terminal surface diameter, and anticreep sleeve 52 is the infundibulate promptly to make anticreep sleeve 52 can connect more rainwater greatly, press during the button 42, the anticreep sleeve 52 of big bore end with attitude sensor body 1 bottom offsets, and the design of anticreep sleeve 52 infundibulate makes the area of contact of anticreep sleeve 52 and attitude sensor body 1 bottom bigger, and is better to attitude sensor body 1's anti-dismantlement effect like this, the condition that attitude sensor body 1 was unexpected to deviate from when avoiding pressing vault 421, presses button 42 the back at the secondary, anticreep ring 51 with press axle 43 and break away from, thereby can dismantle attitude sensor body 1 fast.

In this embodiment, waterproof treatment need be done to the bottom of attitude sensor body 1, and after anticreep sleeve 52 and attitude sensor body 1 offseted, the rainwater in the anticreep sleeve 52 can play the cooling effect to attitude sensor body 1 after contacting with the bottom of attitude sensor body 1, and then absorbs the heat that the during operation of attitude sensor produced to guarantee the stability of attitude sensor body 1 work.

In this embodiment, anticreep sleeve 52 is flexible material, continues to press down button 42 after anticreep sleeve 52 offsets with attitude sensor body 1, and anticreep sleeve 52 can take place deformation this moment to the volume of anticreep sleeve 52 inner chamber reduces, and the inside rainwater of anticreep sleeve 52 spouts to attitude sensor body 1 bottom, and then the contact area of rainwater and attitude sensor body 1 bottom is bigger, and is better to attitude sensor body 1's cooling effect.

In the present embodiment, a through hole 11 is formed on the posture sensor body 1, the through hole 11 is used for being penetrated by the pressing shaft 43, the diameter of the through hole 11 is slightly larger than the diameter of the pressing shaft 43, but the diameter of the through hole 11 is smaller than the maximum diameter of the anti-separation sleeve 52, so that the anti-separation sleeve 52 can play a role of anti-disassembly, such a design can satisfy the first mode of installing the posture sensor body 1, the anti-separation sleeve 52 penetrates the through hole 11 after being deformed, and then the deformation is recovered to play a role of anti-disassembly, when the posture sensor body 1 is installed by using the first mode, the anti-separation sleeve 52 can penetrate the through hole 11 by the friction force between the anti-separation ring 51 and the pressing shaft 43, but when the friction force between the anti-separation ring 51 and the pressing shaft 43 is too large, the quick disassembly of the posture sensor body 1 is not facilitated, therefore, a limit ring 432 can be integrally arranged on the outer side wall of the pressing shaft 43, when the anti-slip ring 51 is inserted into the pressing shaft 43, the anti-slip ring 51 can only be inserted until the anti-slip ring 51 abuts against the limiting ring 432, so that the anti-slip ring 51 cannot slide relative to the pressing shaft 43 when the anti-slip sleeve 52 passes through the through hole 11.

Example two

On the basis of the first embodiment, the second embodiment further provides a using method of the attitude sensor assembly for the well-sealed isolating switch, wherein the attitude sensor assembly for the well-sealed isolating switch is the same as the first embodiment, and is not described herein again.

The specific use method of the attitude sensor assembly for the disconnecting switch is as follows, a wiring is inserted into the waterproof sleeve 61 until the wiring is contacted with the waterproof head 64; continuing to insert the wiring until the electric coupler 63 extends out of the protruding slit 641, so that the upper wiring terminal 31 is conducted with the wiring or the lower wiring terminal 21 is conducted with the wiring; the button 42 is pressed for the first time, and the pressing shaft 43 is pushed by the guide block 4412 to be lifted upwards; when the pressing shaft 43 is lifted to the drain opening 411 above the sealing disc 46, the rainwater is drained into the anti-falling sleeve 52 through the drainage channel 41; when the pressing shaft 43 is lifted until the anti-drop sleeve 52 abuts against the attitude sensor body 1, rainwater in the anti-drop sleeve 52 is sprayed to the bottom of the attitude sensor body; pressing the dome 421 to form air pressure to discharge rainwater in the drainage channel 41; the button 42 is pressed twice, and the anti-slip ring 51 is disengaged from the pressing shaft 43. Through the mode, quick drainage of the attitude sensor assembly can be realized, and meanwhile, the attitude sensor body 1 can be quickly disassembled and assembled.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A well-sealed attitude sensor assembly for a disconnector, comprising:

an attitude sensor body, an outer collar positioned above the attitude sensor body, an inner collar sleeved in the outer collar, and

the upper end face of the inner sleeve ring is provided with a plurality of upper binding posts, the lower end face of the outer sleeve ring is provided with a plurality of lower binding posts, and the lower binding posts are electrically connected with the attitude sensor body;

the outer side wall of the inner lantern ring is in threaded connection with a water blocking sleeve;

an annular plugging groove is formed in the upper end face of the outer sleeve ring, and a water plugging ring body is hinged in the plugging groove; wherein

When the water plugging sleeve is screwed, the outer side wall of the water plugging sleeve is attached to the outer ring of the plugging groove, and the water plugging ring body is pushed to overturn to be abutted to the inner lantern ring.

2. A well-sealed attitude sensor assembly for disconnectors according to claim 1,

two side walls of the water plugging ring body are respectively provided with an inclined plane, and the two inclined planes are arranged in parallel; wherein

After the water plugging ring body is turned over, one inclined plane is abutted to the inner lantern ring, and the other inclined plane is abutted to the inner bottom wall of the plugging groove.

3. A well-sealed attitude sensor assembly for disconnectors according to claim 2,

the inner bottom wall of the plugging groove is fixedly connected with a plurality of supporting columns, and the supporting columns are annularly and equidistantly distributed;

the height of the supporting column is smaller than the depth of the plugging groove, and the water plugging ring body is hinged to the top of the supporting column; wherein

The water plugging ring body can turn around the top of the supporting column.

4. A well-sealed attitude sensor assembly for disconnectors according to claim 3,

the width of the water plugging ring body is equal to the opening width of the plugging groove;

a plugging spring is arranged in the plugging groove, and two ends of the plugging spring are respectively and fixedly connected with the bottom end surface of the water plugging ring body and the inner bottom wall of the plugging groove; wherein

And after the water plugging sleeve is unscrewed, the plugging spring pulls the water plugging ring body back to plug the opening of the plugging groove.

5. A well-sealed attitude sensor assembly for disconnectors according to claim 3,

the inner sleeve is internally sleeved with a pressing part, an

The top of the pressing part protrudes out of the inner sleeve ring, the bottom of the pressing part can penetrate through the attitude sensor body, and the bottom of the pressing part is sleeved with an anti-falling part;

the anti-falling part can block the pressing part from falling off from the attitude sensor body;

the pressing part is internally provided with a drainage channel which extends to the bottom of the pressing part; wherein

The rainwater in the inner sleeve ring can be extruded out of the drainage channel by pressing the pressing part from the top;

the pressing portion can be pressed until the coming-off prevention portion comes off from the pressing portion.

6. A well-sealed attitude sensor assembly for disconnectors according to claim 5,

the pressing part comprises a button of the inner sleeve in the inner sleeve ring, a pressing shaft positioned on the central axis of the button and a linkage piece positioned between the button and the pressing shaft;

the button can slide along the inner side wall of the inner lantern ring;

the pressing shaft penetrates through the attitude sensor body, the anti-falling part is fixed at the bottom of the pressing shaft, and the water drainage channel extends to the bottom of the pressing shaft; wherein

And pressing the button, and linking the pressing shaft to lift and separate from the anti-falling part through the linkage piece.

7. A well-sealed attitude sensor assembly for disconnectors according to claim 6,

the top of the pressing shaft is provided with a guide groove which penetrates through the pressing shaft in the radial direction, and the guide groove is obliquely arranged;

a supporting sleeve is fixedly connected in the inner sleeve ring, and the supporting sleeve is sleeved on the pressing shaft;

the supporting sleeve is provided with a guide groove which penetrates in the radial direction;

the linkage piece comprises a linkage block sliding along the guide groove and a guide block arranged on the inner side wall of the button in a mirror image manner;

the linkage block penetrates through the guide groove;

two opposite side walls of the two guide blocks are obliquely arranged and are parallel to each other, and two side walls of the linkage block are respectively attached to the two guide blocks; wherein

The button can be pressed by pushing the linkage block along the guide groove to slide through the guide block, and the pressing shaft is pushed by the linkage block to lift along the supporting sleeve.

8. A well-sealed attitude sensor assembly for disconnectors according to claim 7,

the inner side wall of the inner sleeve ring is fixedly connected with a sealing disc penetrated by the pressing shaft, the outer side wall of the sealing disc is sealed with the inner side wall of the inner sleeve ring, and the inner side wall of the sealing disc is sealed with the pressing shaft;

rainwater flowing in from between the button and the inner collar can be stored above the sealing disc;

the supporting sleeve is fixed in the center of the upper top surface of the sealing disc;

a water outlet is formed in the top of the pressing shaft and is communicated with the water drainage channel, and the water outlet is positioned below the sealing disc; wherein

After the button is pressed to the drainage port and the sealing disc is located above the sealing disc, rainwater can be discharged through the drainage channel.

9. A well-sealed attitude sensor assembly for disconnectors according to claim 8,

a water outlet is formed in the bottom of the pressing shaft and is communicated with the water drainage channel;

the anti-falling part comprises an anti-falling ring sleeved at the bottom of the pressing shaft and an anti-falling sleeve fixed at the top of the anti-falling ring, and the water outlet is positioned in the anti-falling sleeve;

the diameter of the upper end face of the anti-falling sleeve is larger than that of the lower end face of the anti-falling sleeve, and the anti-falling sleeve is suitable for containing rainwater flowing out of the water drainage channel; wherein

And pressing the button, wherein the anti-falling sleeve abuts against the bottom of the attitude sensor body.

10. A method of using a well-sealed attitude sensor assembly for a disconnector, comprising the well-sealed attitude sensor assembly for a disconnector according to claim 9;

after the inner lantern ring is installed on the outer lantern ring, the water plugging sleeve is screwed tightly so that the water plugging ring body is overturned to be abutted against the inner lantern ring;

pressing the button for the first time to lift the pressing shaft upwards;

when the pressing shaft is lifted to the water outlet and positioned above the sealing disc, rainwater is discharged into the anti-falling sleeve through the water discharge channel;

when the pressing shaft is lifted until the anti-falling sleeve abuts against the attitude sensor body, rainwater in the anti-falling sleeve is sprayed to the bottom of the attitude sensor body;

and pressing the button for the second time to separate the anti-drop ring from the pressing shaft.