CN108375995B - On-off system controlled by floating body - Google Patents

On-off system controlled by floating body Download PDF

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CN108375995B
CN108375995B CN201810188541.XA CN201810188541A CN108375995B CN 108375995 B CN108375995 B CN 108375995B CN 201810188541 A CN201810188541 A CN 201810188541A CN 108375995 B CN108375995 B CN 108375995B
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contact
link
limiting
floating
floating body
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CN108375995A (en
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潘茜茜
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Shandong Hoh Xili Technology Co ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/02Level control, e.g. controlling quantity of material stored in vessel without auxiliary power

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention provides an on-off system, which comprises a connecting device, a link device and a limiting device, wherein the connecting device is assembled relative to the whole of the link device in a stationary manner, the whole of the link device is assembled relative to the connecting device in a movable manner, the limiting device is assembled relative to the whole of the link device in a stationary manner, the whole of the link device is assembled relative to the limiting device in a movable manner, the connecting device comprises a contact column, the link device is sequentially provided with a floating body, the utility model provides a contact post, contact body, the link body includes the spacing portion of the link body, stop device includes the effect end, the effect end is including effect end spacing portion, effect end spacing portion and the spacing cooperation of the spacing portion of the link body, link device includes contact body elastic component, connecting device includes the insulator butt piece, contact body elastic component and insulator butt piece between have the separation state, contact state and extrusion state, the minimum interval of contact body elastic component and insulator butt piece is less than the minimum interval of contact post and contact when being in the separation state between contact post and the contact.

Description

On-off system controlled by floating body
The application is the patent application number of the invention in China: 201610022189.3, filing date: 2016, 1, 14, name: the division application of the on-off system controlled by the floating body is applied.
Technical Field
The invention relates to a structure which can be switched on and off, in particular it is controlled by a floating body.
Background
Some devices need to accurately control on/off systems such as switches according to loaded liquid levels, and a common solution is to provide a timing function or a photoelectric liquid level monitoring function to realize the control, but the schemes are indirect liquid level processing, because on/off is performed through an actuator after feedback signals are processed, the defects of low accuracy and slow response exist, and errors can occur if the liquid levels fluctuate.
Disclosure of Invention
According to the on-off system provided by the invention, the floating body can be directly driven to complete on-off work by lifting of the liquid level, the effect is direct, and the action is accurate.
The invention provides an on-off system controlled by a floating body, which comprises a connecting device, a link device and a limiting device, wherein the connecting device is assembled relative to the whole of the link device in a static way, the whole of the link device is assembled relative to the connecting device in a movable way, the limiting device is assembled relative to the whole of the link device in a static way, the whole of the link device is assembled relative to the limiting device in a movable way, the connecting device comprises a contact column, the link device is sequentially provided with the floating body, a link body and a contact body, the link body comprises a link body limiting part, the limiting device comprises an action end, the action end comprises an action end limiting part, the action end limiting part is matched with the link body limiting part in a limiting way, and a separated.
According to the on-off system controlled by the floating body, when the liquid level rises, the whole of the link rod device rises in the same direction until the contact body is contacted with the contact column to form a contact state of the conducting structure, otherwise, when the liquid level falls, the whole of the link rod device falls in the same direction until the contact body is separated from the contact column to form a separation state of the off structure, the on-off structure directly controlled by the liquid level is realized, the on-off action is rapid and sensitive, the liquid level can directly act on the system, and the accuracy is higher.
The present invention will be described in further detail with reference to the following examples and the accompanying drawings.
Drawings
FIG. 1 is a schematic view of an assembly structure of a first embodiment of the on-off system controlled by a floating body.
Fig. 2 is a partial structural schematic diagram of a first embodiment of the on-off system controlled by the floating body.
Fig. 3 is a schematic diagram of a linkage 200 of a first embodiment of an on/off system using float control.
Fig. 4 is a modified structural view of a linkage 200 according to a first embodiment of the on/off system using float control.
Fig. 5 is a schematic view of the connection device 100 of the first embodiment of the on/off system using float control.
Fig. 6 is a partial structural schematic diagram of a second embodiment of the on-off system controlled by the floating body.
Fig. 7 is a schematic structural view of a link device 200 of a second embodiment of the on-off system using float control.
Fig. 8 is a schematic projection diagram of two limit rings 360 and the central line 221 of the link body in the second embodiment of the on-off system controlled by the floating body.
Fig. 9 is a modified structural view of the link device 200 of the second embodiment of the on-off system using the floating body control.
FIG. 10 is a partial schematic view of a third embodiment of the on-off system using float control.
Fig. 11 is a schematic structural view of a linkage 200 of a third embodiment of an on-off system using float control.
Fig. 12 is a projection diagram of three limit rings 360 and the central line 221 of the link body in the third embodiment of the on-off system controlled by the floating body.
Fig. 13 is a schematic structural diagram of a limit unit 301 of a third embodiment of the on-off system controlled by a floating body.
The designations in the figures are respectively:
the connecting device 100, the insulator 110, the curved surface 111 of the insulator, the spacing surface 112 of the insulator, the contact post 120, the elastic member 121 of the contact post, the abutting member 170 of the insulator and the abutting surface 180 of the insulator;
the linkage device 200, the floating body 210, the floating body floating surface 211, the floating body mounting surface 212, the linkage body 220, the linkage body center line 221, the linkage body limiting part 230, the contact body 240, the contact body curved surface 241, the contact body limiting surface 242, the linkage rod inclined surface 250, the contact body elastic part 270, the buffer ring 280 and the buffer ring abutting surface 281;
the device comprises a limiting device 300, a limiting unit 301, an assembling end 310, an acting end 320, an acting end limiting part 330, a limiting ring 350, a limiting circular ring 360 and a limiting spherical body 351;
an application carrier 900, a first mounting portion 910, a second mounting portion 920;
the link device 200 moves in a predetermined direction a,
A projection connecting line s1 between the center of the limit ring 360 and the central line 221 of the link body,
A projection connecting line s2 between the center of the limit ring 360 and the central line 221 of the link body,
The central projection s3 of the retaining ring 360.
Detailed Description
Referring to fig. 1 to 3 and 5, a first embodiment of the switching system using float control according to the present invention includes a connecting device 100, a link device 200, and a limiting device 300, wherein the connecting device 100 is assembled with respect to the link device 200 in a stationary manner, the link device 200 is assembled with respect to the connecting device 100 in a movable manner, the limiting device 300 is assembled with respect to the link device 200 in a stationary manner, the link device 200 is assembled with respect to the limiting device 300 in a movable manner, the connecting device 100 includes a contact post 120, the link device 200 sequentially includes a float 210, a link body 220, and a contact body 240, the link body 220 includes a link body limiting portion 230, the limiting device 300 includes an action end 320, the action end 320 includes an action end limiting portion 330, the action end limiting portion 330 is in limiting engagement with the link body limiting portion 230, and the contact post 120 and the contact body 240 have a separated state and a contacted state.
The whole of the connecting device 100 is used for being fixedly installed on the first installation part 910 of the application carrier 900 thereof, the whole of the limiting device 300 can promote the smooth ascending and descending movement of the link device 200, the limiting device 300 comprises a mounting end 310, the mounting end 310 is used for being fixedly installed on the second installation part 920 of the application carrier 900 thereof, the acting end 320 is fixedly installed on the mounting end 310, and the link device 200 can move relative to the connecting device 100 or the limiting device 300, but the relative movement is aimed at the whole, and the movement of individual parts relative to the whole of the connecting device 100 or the limiting device 300 is not excluded.
The limit cooperation between the action end limiting part 330 and the link body limiting part 230 is a result of interaction between the two, so that the whole link device 200 can move along a predetermined direction and path, and is limited and stopped by the limiting device 300 after a certain travel, in other words, the limiting device of the present invention has the above-mentioned dual functions of guiding and blocking.
Since the forward and reverse movements of the linkage 200 allow the contact post 120 and the contact body 240 to be in contact with each other or separated from each other, the switching between the separated state and the contact state between the contact post 120 and the contact body 240 is performed by the bidirectional movement of the linkage 200.
In the first embodiment, the whole of the link assembly 200 is raised or lowered along the predetermined direction a, i.e. the up-down direction, but it is not necessarily straight during the raising or lowering process, and there may be an offset, so that the direction a is only the target direction, and it can be regarded as the most desirable effect of the effort of the limit cooperation of the active end limit portion 330 and the link body limit portion 230.
The first embodiment of the limiting device 300 can promote smooth ascending and descending activities of the link device 200, the limiting device 300 includes a mounting end 310 and a limiting ring 350, the limiting ring 350 and the mounting end 310 are fixedly assembled, the link body limiting portion 230 of the link device 200 includes a link rod inclined surface 250, the link rod inclined surface 250 and the link body 220 are fixedly assembled, and the link rod inclined surface 250 and the limiting ring 350 are in abutting fit. It should be noted that the spacing ring 350 is not limited to a circular ring, and the spacing ring 350 of the present invention is not equivalent to the spacing ring 360, and the inner ring thereof may be various regular or irregular closed rings, and the link inclined plane 250 may be understood as a plane inclined with respect to the longitudinal direction, i.e. the up-down direction a, so that the two may abut or even frictionally engage when the link assembly 200 is lifted, and finally the link assembly 200 is clamped by the spacing ring 350 to terminate the lifting process. It is further added that the action end limiting part 330 may not be shaped like a ring, in the limit, it may be only two limiting points at the same height with respect to the link body 220, but the increased abutting area of the limiting part is beneficial to the improvement of the limiting performance.
The preferred embodiment of the linkage assembly 200 includes two link ramps 250, wherein the two link ramps 250 are mirror images of each other about a stop collar 350. The limiting action is configured to be bi-directional, i.e., the limiting and ultimately terminating effect is achieved upon either forward or reverse movement of the linkage 200.
The floating body 210 comprises a floating body floating surface 211 and a floating body mounting surface 212, the floating body mounting surface 212 and the link body 220 are fixedly assembled, the floating body floating surface 211 and the floating body mounting surface 212 are two planes which are parallel to each other, and the area of the floating body floating surface 211 is larger than that of the floating body mounting surface 212. The floating body 210 is a part that can float on the liquid, and the floating body floating surface 211 directly contacts with the buoyancy medium to generate buoyancy for raising the whole link device 200, and the increased floating body floating surface 211 is more favorable for smooth buoyancy.
The contact post 120 includes a contact post spring 121, and the contact post spring 121 and the contact body 240 have a separated state, a contact state, and a pressed state therebetween. The contact post elastic member 121 of the first embodiment is shaped as an arched spring, the contact body 240 is first in a contact state contacting the contact post elastic member 121, allowing the link mechanism 200 to continue to move under the action of buoyancy, the contact body 240 presses the contact post elastic member 121 to elastically deform and store energy in a pressing state, and when the link mechanism 200 moves in a reverse direction, the contact post elastic member 121 and the contact body 240 return to the contact state from the pressing state and then separate into separate states. This provides additional cushioning for protecting the fragile contact post 120.
Also in the supplementary cushioning described in the preceding paragraph, the link apparatus 200 includes a contact spring 270, the connecting apparatus 100 includes an insulator abutment member 170, the contact spring 270 and the insulator abutment member 170 have a separated state, a contact state and a pressed state therebetween, and the minimum distance between the contact spring 270 and the insulator abutment member 170 in the separated state between the contact post 120 and the contact body 240 is smaller than the minimum distance between the contact post 120 and the contact body 240. The contact elastic member 270 and the spacer abutting member 170 will complete the contact state before the contact column 120 and the contact 240 are contacted, and then the contact elastic member 270 is pressed by the spacer abutting member 170 to be deformed to be in the pressed state for energy storage, otherwise, the pressed state, the contact state and the separated state are switched in sequence, of course, the minimum distance between the contact elastic member 270 and the spacer abutting member 170 should not be too large compared with the minimum distance between the contact column 120 and the contact 240, otherwise, the contact column 120 and the contact 240 will not complete the contact.
The embodiment is an example of applying the technical concept of the present invention to a specific water bath body, and is used for controlling the on and off of the heating circuit, that is, when the liquid level rises, the link device 200 rises to connect the heating circuit, and otherwise, the link device is disconnected. Corresponding structural variations are therefore made: the connecting device 100 includes an isolator 110 and two contact posts 120, the isolator 110 is made of an insulating material, the contact posts 120 are made of a conductive material, the isolator 110 is located between the two contact posts 120, the floating body 210 and the link body 220 are made of an insulating material, and the contact body 240 is made of a conductive material. The whole movement of the link assembly 200 is conducted until the contact body 240 and the two contact posts 120 are contacted, thereby forming a conducting structure to connect the heating circuit, otherwise, the whole reverse movement of the link assembly 200 is conducted until the contact body 240 and the two contact posts 120 are separated, thereby forming a disconnecting structure to cut off the heating circuit, realizing automatic control of the heating circuit, and improving safety and guaranteeing functions.
The contact 240 of the first embodiment includes the curved contact surface 241, the isolator 110 includes the curved isolator surface 111, and the minimum distance between the contact post 120 and the curved contact surface 111 when the contact post 120 and the contact 240 are in the separated state is smaller than the minimum distance between the curved isolator surface 241 and the curved contact surface 111. This means that the contact post 120 protrudes from the curved surface 241 of the isolated body under the same condition, so that the contact post 120 and the curved surface 111 of the contact body will contact with each other before the curved surface 241 of the isolated body and the curved surface 111 of the contact body, and if the contact post elastic member 121 exists, the contact between the curved surface 241 of the isolated body and the curved surface 111 of the contact body is possible only when the contact post elastic member 121 is deformed to be completely flush with the curved surface 241 of the isolated body.
The structure that leads to of contact curved surface 241 and isolation body curved surface 111 of the first embodiment of the preceding paragraph is that contact 240 is the sphere shape, isolation body 110 is the semicircle ball cover shape, contact 240's surface includes spacing face 242 of contact, isolation body 110's internal surface includes spacing face 112 of isolation body, spacing face 241 of contact and the spacing cooperation of spacing face 112 of isolation body. Although the linkage 200 ensures that the lifting movement is smooth through the floating body 210 and the limiting device 300, the lifting process dominated by the buoyancy of the liquid cannot avoid direction randomness, and again, the solution can be improved by adding corresponding limiting functions to the contact body 240 and the insulating body 110, but the limiting of the two is not necessarily abutted, but only plays an additional role of supplementary limiting.
The specific fitting form of the contact body spring member 270 and the spacer abutment member 170 derived from the spherical shape fitting of the contact body 240 and the spacer 110 described in the preceding paragraph is: the link device 200 includes the buffering ring 280, the buffering ring 280 and the contact body 240 are sleeved and assembled, the buffering ring 280 and the contact body 240 are fixedly assembled, the buffering ring 280 includes the buffering ring abutting surface 281 that can elastically deform, the isolating body 110 includes the isolating body abutting surface 180, the isolating body abutting surface 180 and the buffering ring abutting surface 281 are in abutting cooperation, when the contact body 240 and two contact columns 120 are all separated, the minimum distance between the isolating body abutting surface 180 and the buffering ring abutting surface 281 is smaller than the minimum distance between the contact body abutting surface 241 and the isolating body abutting surface 112. This provides a cushioning effect, reducing the impact force to protect the relatively fragile contact post 120, while supplementing the minimum spacing between the isolator abutment surface 180 and the cushion ring abutment surface 281 that is less than the minimum spacing between the contact body 240 and the contact post 120. The minimum distance mentioned in the present invention is to be understood as the shortest straight distance between the most protruding portions of the two in space relative to each other. Therefore, when the link device 200 moves, the spacer contact surface 180 and the cushion ring contact surface 281 come into contact with each other first, and the elastic deformation of the cushion ring contact surface 281 absorbs the impact force. In the present embodiment, the minimum distance between the insulator abutment surface 180 and the buffer ring abutment surface 281, the minimum distance between the contact body 240 and the two contact posts 120, and the minimum distance between the contact body limiting surface 241 and the insulator limiting surface 112 are slightly different from each other, and after the insulator abutment surface 180 and the buffer ring abutment surface 281 are in contact, the contact body 240 and the two contact posts 120 will be in contact with each other to conduct a circuit if the link apparatus 200 moves further, but as mentioned above, the contact body limiting surface 241 and the insulator limiting surface 112 do not necessarily come into contact with each other, but the probability of contact between them is relatively high.
As shown in fig. 4, the alternative structure of contact 240 is: the link device 200 includes the buffering ring 280, the assembly is cup jointed to buffering ring 280 and contact body 240, buffering ring 280 and the fixed assembly of contact body 240, but buffering ring 280 includes elastic deformation's buffering ring butt face 281, isolation 110 includes isolation body butt face 180, isolation body butt face 180 and the cooperation of buffering ring butt face 281 butt, when contact body 240 and two contact posts 120 all separate, isolation body butt face 180 and buffering ring butt face 281 are parallel to each other, the minimum interval of isolation body butt face 180 and buffering ring butt face 281 is less than the minimum interval of contact post 120 and contact body 240. The buffer ring abutting surface 281 with the plane surface has wide application range and easy manufacture, only the minimum distance is required to be smaller than the minimum distance between the contact column 120 and the contact body 240 when the contact column 120 and the contact body 240 are separated, the contact body 240 and the isolating body 110 are not required to be matched in a spherical shape, and the buffer ring abutting surface 281 of the structure can elastically reset when the contact column 120 and the contact body 240 are separated and returns to a state parallel to the isolating body abutting surface 180.
Fig. 6 to 9 show a second embodiment, which is a specific application example in a water tank of a dehumidifier, and realizes automatic opening and closing of a drain valve by associating with the water level of the water tank.
The second embodiment can be understood by combining the first embodiment, and the same points are not described again, except that: stop device 300 includes two spacing units 301, and every spacing unit 301 includes assembly end 310 and spacing ring 360, and spacing ring 360 and assembly end 310 fixed mounting, the link body 220 are the cylinder shape, and the link body 220 includes link body central line 221, and the center of spacing ring 360 forms the contained angle with the projection line of link body central line 221, and the link body 220 cooperates with 360 butt cooperations of spacing ring.
In a side view, the two limit rings 360 are substantially staggered with the center line 221 of the link body as the center, and as can be seen in fig. 6 and 7, the upper limit ring 360 is shifted to the right and the lower limit ring is shifted to the left, so that an abutting or even frictional fit can be generated when the link device 200 moves, and finally the link device 200 is clamped by the two limit rings 360 to terminate the lifting process. Two variations can be derived at this time: firstly, the size of two spacing rings is equal, and secondly, the size of two spacing rings is different, but two spacing ring 360's distribution must satisfy and need provide the link body 220 abundant surplus of activity wherein, otherwise the link body 220 can't move about in two spacing rings 360, even the link body 220 can't assemble among two spacing rings 360.
Fig. 8 shows in detail the projected connection lines s1, s2 of the centers of the two limit rings 360 and the central line 221 of the linkage body, where the projection is the orthographic projection along the direction a, and the central line 221 of the linkage body is a point substantially the same as the centers of the two limit rings 360, and the projected connection lines of the centers of the two limit rings 360 and the central line 221 of the linkage body form an angle of 180 degrees as shown in fig. 8 for convenience of understanding. In other words, the two straight lines are located on the same straight line, and of course, the two straight lines may form an included angle of other angles, but an included angle of 180 degrees should be said to be the best scheme for limiting effect.
Fig. 10 to 13 show a third embodiment, which is a specific application example in the pond body of the culture pond drainage system, and the automatic opening and closing of the drainage valve is realized by being related to the water level of the pond body.
The third embodiment can be understood by combining the first embodiment, and the same parts are not described again, except for the following: stop device 300 includes three spacing unit 301, every spacing unit 301 includes assembly end 310 and spacing ring 360, spacing ring 360 and assembly end 310 fixed mounting, the interior circle diameter that is located the spacing ring 360 at both ends is the same, the interior circle diameter that is located the spacing ring 360 at both ends is greater than the interior circle diameter that is located the spacing ring 360 of central authorities, the central projection coincidence of spacing ring 360, the antithetical couplet body 220 and the cooperation of 360 butts of spacing ring. Therefore, the two-way limiting effect on the link body 220 is brought, the two-way movement of the link body can generate butt joint and even friction fit, and finally the link device 200 moving in the reverse direction is clamped by the upper middle two limiting circular rings 360 to stop the reverse movement process or finally the link device 200 moving in the forward direction is clamped by the middle lower two limiting circular rings 360 to stop the forward movement process. While the central projection s3 of the check ring 360 should be an orthographic projection along the direction a, the link body centerline 221 should be a point substantially the same as the centers s3 of the three check rings 360, and the four geometric points are enlarged for ease of understanding.
Another flexible structure of the position limiting device 300 in the third embodiment is a simplified one-way position limiting structure: stop device 300 includes two spacing units 301, and every spacing unit 301 includes assembly end 310 and spacing ring 360, and the interior circle diameter of 360 of one of them spacing ring is greater than the interior circle diameter of 360 of another spacing ring, and the central longitudinal projection coincidence of 360 of spacing ring, the antithetical couplet body 220 and the cooperation of 360 butt joints of spacing ring. Compared with bidirectional limiting, the structure is simple, and the limiting effect is inferior.
As can be seen from the above first, second and third embodiments, the variation of the position limiting device 300 is various: the link inclined surface 250 in the first embodiment may be applied to the second and third embodiments; or both of them are set to be one-way limiting; the action end limiting portion 330 may be in the form of a regular ring, an irregular ring, or even at least two or more action end limiting portions 330 that are not annular.
The connector 100 may also be in the form of a non-visible semi-spherical sleeve, which may be in the form of a flat plate, in which the contact post 120 is embedded, and the contact between the contact post 120 and the contact body 240 may be rigid or resilient.
Therefore, it can be said that the acting end limiting portion 330 and the link body limiting portion 230 have a one-way limiting effect therebetween.
Or the acting end limiting part 330 and the link body limiting part 230 have a bidirectional limiting function.
The projected connecting lines s1, s2 mentioned in the second embodiment may be any angle except for coincidence, but it is considered as a 180 degree optimal solution, and the size of the limit ring 360 itself may be different, that is, the large and small rings of the third embodiment are combined with the staggered rings of the second embodiment and combined with the inclined plane matching of the first embodiment, and the link body 220 may also be irregular column shape with different cross sections, but not necessarily regular cylinder shape.
Thus, a summary of example two and example three is: the limiting device 300 comprises at least two limiting units 301, each limiting unit 301 comprises an acting end 320, the acting end 320 comprises an acting end limiting part 330, the acting end limiting part 330 comprises limiting rings 360, and the projections of all the limiting rings 360 along the moving direction of the link device 200 have differences. Fig. 8 and 12 illustrate the difference between the projections of all the limit rings 360 along the moving direction of the link device 200, in other words, the projections in the same direction are not coincident, and the concentric circles and the non-concentric circles can achieve the guiding effect and the locking effect.
The action end limiting part 330 and the link body limiting part 230 have a point contact action therebetween, so as to reduce the contact or friction area, and the contact or friction area is designed to prevent the contact and the friction area from being blocked and matched, and the separation cannot be smoothly completed, and the structure is as follows: the limiting ring 350 or the limiting ring 360 includes a limiting spherical body 351, and the limiting spherical body 351 is arranged facing the link body 220. If the link slope 250 is present, the limit sphere 351 is disposed facing the link slope 250. Therefore, the abutting and even frictional point contact effect is generated between the limiting spherical body 351 and the link body 220, and the friction force is effectively reduced, so that the link body 220 is prevented from being blocked. Of course, the limiting portion 330 may be provided with a similar slope, and the outer wall of the link body 220 may be provided with a similar sphere, which also plays a role of point contact. The position-limiting sphere 351 may be a triangular block with its apex facing the link 220 or a bump facing the link 220.
Spacing spheroid 351 and spacing ring 350 or spacing ring 360 have two kinds of assembly methods: firstly, the limiting spherical body 351 and the limiting ring 350 are fixedly assembled, and the limiting spherical body 351 and the limiting ring 350 are assembled in a relatively static manner, which means that sliding friction may occur between the limiting spherical body 351 and the link body 220, the limiting effect is obvious, but the probability of jamming and unsmooth lifting is high; secondly, spacing spheroid 351 and spacing ring 350 fixed assembly, spacing spheroid 351 and spacing ring 350 are the relative activity assembly, mean that spacing spheroid 351 can be assembled in spacing ring 350 with rolling, spacing spheroid 351 and link body 220 probably appear rolling friction then, compare both are relative static assembly, frictional force reduces but difficult card is died. Therefore, the above-mentioned extension can be made such that there is sliding friction between the working end stopper portion 330 and the link body stopper portion 230 or rolling friction between the working end stopper portion 330 and the link body stopper portion 230.

Claims (5)

1. The on-off system controlled by the floating body is adopted,
comprises a connecting device (100), a link device (200) and a limiting device (300),
the connecting device (100) is assembled in a stationary manner with respect to the entirety of the link device (200), the entirety of the link device (200) is assembled in a movable manner with respect to the connecting device (100),
the limiting device (300) is assembled in a stationary way relative to the whole of the link device (200), the whole of the link device (200) is assembled in a movable way relative to the limiting device (300),
the connecting device (100) comprises a contact column (120),
the link rod device (200) is sequentially provided with a floating body (210), a link rod body (220) and a contact body (240), the link rod body (220) comprises a link rod body limiting part (230),
the limiting device (300) comprises an action end (320), the action end (320) comprises an action end limiting part (330),
the action end limiting part (330) is in limit fit with the connecting rod body limiting part (230),
the contact column (120) and the contact body (240) have a separated state and a contact state,
the link device (200) comprises a contact body elastic member (270), the connecting device (100) comprises an insulator abutting member (170), the contact body elastic member (270) and the insulator abutting member (170) have a separated state, a contact state and a squeezing state, the minimum distance between the contact body elastic member (270) and the insulator abutting member (170) is smaller than the minimum distance between the contact column (120) and the contact body (240) when the contact column (120) and the contact body (240) are in the separated state,
the method is characterized in that: the connecting device (100) comprises an isolating body (110) and two contact columns (120), wherein the isolating body (110) is made of an insulating material, the contact columns (120) are made of a conductive material, the isolating body (110) is located between the two contact columns (120), the floating body (210) and the link body (220) are made of an insulating material, and the contact body (240) is made of a conductive material.
2. The on-off system controlled by the floating body according to claim 1, wherein: the contact column (120) comprises a contact column elastic member (121), and the contact column elastic member (121) and the contact body (240) have a separation state, a contact state and a compression state.
3. The on-off system controlled by the floating body according to claim 1, wherein: the floating body (210) comprises a floating body floating surface (211) and a floating body mounting surface (212), the floating body mounting surface (212) and the link body (220) are fixedly assembled, the floating body floating surface (211) and the floating body mounting surface (212) are two planes which are parallel to each other, and the area of the floating body floating surface (211) is larger than that of the floating body mounting surface (212).
4. The on-off system controlled by the floating body according to claim 1, wherein: the limiting device (300) comprises at least two limiting units (301), each limiting unit (301) comprises an acting end (320), each acting end (320) comprises an acting end limiting part (330), each acting end limiting part (330) comprises a limiting circular ring (360), and projections of all the limiting circular rings (360) along the moving direction of the link device (200) have differences.
5. The on-off system controlled by the floating body according to claim 4, wherein: the contact body (240) comprises a contact body curved surface (241), the isolation body (110) comprises an isolation body curved surface (111), and the minimum distance between the contact column (120) and the contact body curved surface (111) is smaller than that between the isolation body curved surface (241) and the contact body curved surface (111) when the contact column (120) and the contact body (240) are in a separated state.
CN201810188541.XA 2016-01-14 2016-01-14 On-off system controlled by floating body Active CN108375995B (en)

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Application Number Priority Date Filing Date Title
CN201610022189.3A CN105676889B (en) 2016-01-14 2016-01-14 The break-make system controlled using floating body
CN201810188541.XA CN108375995B (en) 2016-01-14 2016-01-14 On-off system controlled by floating body

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