CN112820575A - Multi-gear change-over switch - Google Patents
Multi-gear change-over switch Download PDFInfo
- Publication number
- CN112820575A CN112820575A CN201911130096.2A CN201911130096A CN112820575A CN 112820575 A CN112820575 A CN 112820575A CN 201911130096 A CN201911130096 A CN 201911130096A CN 112820575 A CN112820575 A CN 112820575A
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- cover body
- limiting cover
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- groove
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- 238000003825 pressing Methods 0.000 claims description 39
- 238000009434 installation Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention belongs to the field of conversion switches, and provides a multi-gear conversion switch, which comprises: the switch comprises a switch body with a rotatable switching shaft capable of adjusting gears, a handle for enabling an operator to rotate so as to drive the rotatable switching shaft to rotate, a handle connecting piece for mounting the handle on the switch body and a limiting cover assembly; wherein, the handle connecting piece has the handle installation department that is used for fixed handle and the body connecting portion of being connected with rotatable switching axle, and the bottom of this body connecting portion has the flange, and spacing lid subassembly includes: spacing lid body and preforming, preforming and spacing lid body detachably are connected, have the boss on the spacing lid body, and the height of this boss equals with the height of flange, forms the space that holds the flange between preforming and the boss for the handle connecting piece can rotate. The multi-gear change-over switch is convenient to replace the handle connecting piece, does not change the structure of the switch body, does not need to be connected with equipment for debugging, and is time-saving and labor-saving.
Description
Technical Field
The invention belongs to the field of change-over switches, and particularly relates to a multi-gear change-over switch.
Background
The multi-gear change-over switch is a switch which can be used for the change-over connection of two or more power sources or loads and controls the operation of various devices, and is widely used in daily life and industrial production, such as power stations, track-changing stations, high-speed rail locomotives, subway locomotives, ships and warships and the like. The multi-gear change-over switch mainly comprises a switch body and a handle. When installing many gears change over switch, install the handle and supply operating personnel rotatory in control panel's the outside, the rotatory switching axle that drives in the switch body through the rotation of handle is rotatory, realizes the switching of corresponding equipment, and other parts are encapsulated in control panel's inboard.
The handle is divided into a common handle and a handle with a locking function. The common handle can be rotated at any time when needed. The mounting mode of a common handle is generally as follows: the rotatable switching shaft passes through the small hole limiting cover of the switch body closest to the control panel and then is directly connected with the handle. Thus, the length of the protruding end of the rotatable switching shaft, i.e. the protruding small hole limiting cover, needs to be longer. The lock handle with a locking function connects the handle and the rotatable switching shaft by means of the lock, and when it is required to rotate, the key can be inserted into the keyhole of the lock. The installation mode of the locking handle is different from that of a common handle, the small hole limiting cover needs to be replaced by the large hole limiting cover, the lock penetrates through the large hole limiting cover, the handle is installed at the top end of the lock, and the bottom end of the lock is connected with the extending end of the rotatable switching shaft, so that the extending end of the rotatable switching shaft does not need to be too long.
The lock core is very easy to be lost due to frequent rotation, and needs to be replaced from time to time. Present lock core and switch body lug connection together, during the change, need pull down the handle earlier, take out the switch body from control panel's rear again, then just can take out the lock core after dismantling the switch body and change. Thus, after the switch body is assembled again, the switch body needs to be reinstalled and the device needs to be connected for debugging. The commissioning of the equipment generally requires a day, which is both cumbersome and time consuming for the field conditions. In addition, when the common handle needs to be replaced by the lock cylinder handle, the type of the limiting cover needs to be replaced, and the rotatable switching shaft in the switch body also needs to be replaced. Therefore, not only is the parts required to be found and reassembled, but also the parts are required to be debugged again, and time and labor are wasted.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-position change-over switch that can complete the replacement of a key cylinder in front of a control panel without detaching a switch body.
The invention provides a multi-gear change-over switch, which is characterized by comprising the following components: a switch body having a rotatable switching shaft capable of performing gear adjustment; a handle for allowing an operator to rotate so as to drive the rotatable switching shaft to rotate; a handle connector for mounting the handle to the switch body; and a limit cap assembly, wherein the handle connecting piece has a handle mounting part for fixing the handle and a body connecting part connected with the rotatable switching shaft, the bottom end of the body connecting part has a flange, and the limit cap assembly comprises: the limiting cover body is fixed on the switch body and is provided with a switching shaft through hole for the rotatable switching shaft to penetrate through; and the pressing sheet is detachably connected with the limiting cover body, the limiting cover body is provided with a boss, the height of the boss is equal to that of the flange, and a space for accommodating the flange is formed between the pressing sheet and the boss, so that the handle connecting piece can rotate.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: wherein, be equipped with on the spacing lid body with the shape assorted lid groove of preforming for the lid inslot can be put into to the preforming, and the bottom in lid groove has the switching axle through-hole, is equipped with the boss around the switching axle through-hole, and the preforming has the preforming hole, thereby can be passed by the handle installation department and make the handle fixed on the handle installation department.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: wherein, still be equipped with the recess and the protruding piece of outside extension on the lid groove, the protruding piece inwards extends along the surface of the spacing lid body that is close to one side of handle to and the bottom surface in lid groove between form the draw-in groove that is linked together with the recess, the preforming has the preforming flange, the shape and the recess phase-match of this preforming flange, be equipped with the fixture block on the preforming flange, this fixture block can block in the draw-in groove, make preforming and spacing lid body detachably be connected.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: the cover body groove is also provided with a stop block, the stop block is arranged at the bottom of the cover body groove and is connected with the protruding block, and the pressing sheet stops moving after moving to the position of the stop block when being clamped into the clamping groove.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: the handle connecting piece is a multi-angle rotating shaft, the multi-angle rotating shaft is provided with an insulating base and a connecting rotating shaft, the insulating base is fixedly embedded together, an insulating hole is formed in the bottom of the insulating base, the rotatable switching shaft is inserted into the insulating hole, so that the multi-angle rotating shaft is connected with the rotatable switching shaft, the connecting rotating shaft is used for installing the handle, and when the handle is rotated, the multi-angle rotating shaft drives the rotatable switching shaft to rotate together.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: the insulating base is cylindrical, and the side face of the insulating base is provided with a plurality of protruding edges extending along the axial direction.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: the middle of the handle connecting piece is provided with a lock cylinder, the bottom of the lock cylinder is provided with a lock cylinder hole, the rotatable switching shaft is inserted into the lock cylinder hole so that the handle connecting piece is connected with the rotatable switching shaft, and the top end of the lock cylinder is provided with a key hole for a key to be inserted into the key hole to control the rotation of the handle connecting piece.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: wherein, evenly be equipped with four bosss on the spacing lid body, be equipped with the mounting hole on every boss.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: wherein, evenly be equipped with four preforming through-holes on the preforming for thereby with the mounting hole cooperation with the preforming with spacing lid body installation together.
In the multi-step selector switch provided by the present invention, the multi-step selector switch may further have the following features: wherein, be equipped with four panel mounting holes on the spacing lid body for install the spacing lid body on the panel.
Action and Effect of the invention
The multi-gear change-over switch comprises a switch body, a handle connecting piece and a limiting cover assembly, wherein the limiting cover assembly comprises a limiting cover body and a pressing piece which are detachably connected, and the limiting cover body is connected with the switch body. Be equipped with the boss on the spacing lid body, when the preforming was placed on the spacing lid body, formed accommodation space between spacing lid body and the preforming, and the height of the flange of the bottom of handle connecting piece equals with the height of boss for the handle connecting piece can be installed and can rotate between spacing lid body and preforming. One end of the handle connecting piece is connected with the rotatable switching shaft of the switch body, the other end of the handle connecting piece is connected with the handle, and when the handle is rotated, the handle connecting piece drives the rotatable switching shaft to rotate together, so that gear control is carried out on a plurality of devices connected with the switch body. Consequently, because can dismantle between spacing lid body and the preforming and be connected, when needing to change the handle connecting piece, need not unpack the switch body apart, only need take off the preforming, with regard to the old handle connecting piece of detachable, install new handle connecting piece again, the structure of switch body does not change like this, just need not jointing equipment to debug labour saving and time saving.
Drawings
Fig. 1 is a schematic structural view of a multi-position selector switch and a control panel according to embodiment 1 of the present invention;
fig. 2 is an exploded view of the structure of the multi-position selector switch and the control panel in embodiment 1 of the present invention;
FIG. 3 is a schematic view showing a structure of a polygonal rotating shaft in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a position-restricting cover body in embodiment 1 of the present invention;
FIG. 5 is a schematic view of the structure of a tablet in example 1 of the present invention; and
fig. 6 is an exploded view of the structure of the multi-position selector switch and the control panel in embodiment 2 of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, a multi-gear change-over switch of the invention is specifically described below with reference to the embodiments and the accompanying drawings.
< example 1>
The present embodiment specifically explains the structure of the multi-position selector switch 100.
Fig. 1 is a schematic structural diagram of a multi-position selector switch and a control panel in embodiment 1 of the present invention.
Fig. 2 is an exploded view of the structure of the multi-position selector switch and the control panel in embodiment 1 of the present invention.
FIG. 3 is a schematic view showing a structure of a polygonal rotating shaft in embodiment 1 of the present invention;
as shown in fig. 1 to 3, the multi-stage switch 100 is mounted on the control panel 200. The multi-stage shift switch 100 includes: switch body 10, spacing lid subassembly 20, handle connecting piece, mounting panel 40 and handle 50.
The middle of the control panel 200 is provided with a panel mounting hole 201 and four panel fixing holes 202 uniformly distributed around the panel mounting hole 201. The panel mounting hole 201 has a diameter larger than the axial dimension of the handle attachment member to allow it to pass therethrough. The panel fixing holes 202 are used to mount the retaining cover assembly 20 and the mounting plate 40 to the control panel 200.
The switch body 10 comprises four coaxially stacked contact layers 11 and a rotatable switching shaft 12 extending through all contact layers. The four contact layers 11 are used for connecting a plurality of devices (not shown in the figure) according to a predetermined combination connection scheme. The rotatable switching shaft 12 is a square cylinder and extends out after being connected with the four contact layers 11a in a penetrating manner, so that gear adjustment of the four contact layers 11a can be synchronously performed by rotating the rotatable switching shaft 12, and gear control of a plurality of connected devices can be further performed according to a preset combined connection scheme.
The limit cover assembly 20 comprises a limit cover body 21 and a pressing sheet 22 which are detachably connected. The limit cover body 21 is mounted on the switch body 10, and a cover groove 211 is provided in the middle of the limit cover body 21. Four limit cover fixing holes 212 are uniformly formed around the limit cover body 21.
The pressing piece 22 is a circular plate having a hole in the middle, and is matched with the shape of the cover body groove 211, and can be placed in the cover body groove 211 to form a certain accommodating space between the cover body grooves 211. The diameter of the pressing piece 22 is smaller than that of the panel mounting hole 201.
The handle connector has a handle mounting portion for fixing the handle and a body connecting portion connected to the rotatable switching shaft 12, and a flange is provided at a bottom end of the body connecting portion. In this embodiment, the handle attachment is a polygonal shaft 30.
The polygonal rotating shaft 30 has an insulating base 31 and a connecting rotating shaft 32 fixedly fitted together. In this embodiment, the insulating base 31 is made of insulating plastic, and the connecting shaft 32 is made of metal, and they are fixedly embedded together by injection molding.
The insulating base 31 is cylindrical and has a diameter smaller than the circular hole in the middle of the pressing piece 22 and the panel mounting hole 201.
The bottom of the insulating base 31 has a square insulating hole 311, the side has a plurality of axially extending raised ribs 312, and the bottom has a plurality of radially extending flanges 313 flush with the bottom.
The shape of the insulation hole 311 matches the shape of the rotatable switching shaft 12, and the depth of the hole is greater than the length of the protruding end of the rotatable switching shaft 12, that is, the length of the rotatable switching shaft 12 protruding out of the position-limiting cover body 21.
The provision of the protruding ribs 312 helps to reduce stress during processing, so that cracks are not generated on the surface of the insulating base 31, thereby improving the appearance and prolonging the service life.
The bottom end of the insulating base 31 can be placed in the receiving space between the cover groove 211 and the pressing sheet 22, and the thickness of the flange 313 matches the height of the receiving space.
The connecting shaft 32 is in a square column shape, and the top end of the connecting shaft is connected with the handle 50 after passing through the mounting plate mounting hole 401 and the mounting plate pressing plate 403 in the middle of the mounting plate 40. The top end of the connecting shaft 32 has a screw hole (not shown in fig. 3) into which a bolt is screwed and then the handle 50 is preferably fixed to the top end of the connecting shaft 32.
When the multi-gear change-over switch is installed, the limit cover body 21 is fixed on the switch body 10 by screws, then the limit cover body 21, the polygonal rotating shaft 30, the pressing sheet 22, the control panel 200 and the mounting plate 40 are sequentially connected together, at this time, four limit cover fixing holes 212, four panel fixing holes 202 and four mounting plate fixing holes 402 uniformly arranged around the mounting plate 40 form four through holes, bolts are placed in the four through holes, so that the main part of the multi-gear change-over switch 100 is installed on the control panel 200, and finally the handle 50 is installed at the top end of the polygonal rotating shaft 30, so that the installation of the multi-gear change-over switch 100 on the control panel 200 is completed. When the operator rotates the handle 50 in front of the control panel 200, the polygonal rotation shaft 30 rotates the rotatable switching shaft 12 together, thereby implementing gear control of a plurality of devices.
Fig. 4 is a schematic structural view of a stopper cap body in embodiment 1 of the present invention.
As shown in fig. 4, the middle of the position-limiting cover body 21 is provided with a cover groove 211, and four corners are respectively provided with a position-limiting cover fixing hole 212.
The cover body groove 211 has a switching shaft through hole 213 at the bottom thereof, which is in clearance fit with the rotatable switching shaft 12 for the passage thereof.
Two first bosses 214a and two second bosses 214b are further provided on the cover body groove 211 with the switching shaft through hole 213 as a symmetry point, and the heights of the first bosses 214a and the second bosses 214b are equal to the height of the flange 313.
The first and second bosses 214a and 214b are each provided with an outwardly extending groove 215.
The groove 215 is an arc-shaped groove, the bottom surface of which is on the same horizontal plane as the upper surface of the first boss 214a or the second boss 214b, and the two axial surfaces and the circumferential surface of which are perpendicular to the upper surface of the first boss 214a or the second boss 214 b.
Four bumps 216 and four stops 217 are uniformly disposed at the bottom of the cover body groove 211.
The protrusions 216 respectively share a side surface with the grooves 215 at both sides, and extend inward along the surface of the position-limiting cover body 21 at a side close to the handle 50, and form a slot communicating with the grooves 215 with the bottom surface of the cover body slot 211. The stopper 217 is disposed at the bottom of the cover groove 211 and connected to the protrusion 216, so that the pressing sheet 22 is moved to the position of the stopper 217 when being engaged with the slot and then stops moving.
The first boss 214a has a first through hole 218a and a first hexagonal counterbore 219. The first through hole 218a is used for placing a bolt to connect the limit cap body 21 and the switch body 10 together, and the hexagonal counterbore 219 is used for accommodating a nut when the bolt is inserted into the through hole 218 a.
The second boss 214b is provided with a second through hole 218 b. At the side of the cover groove 211 close to the switch body 10, the second through hole 218b is provided with a second hexagonal counterbore (not shown) for receiving a hexagonal nut when the bolt is inserted into the through hole 218 b.
Fig. 5 is a schematic view of the structure of a tablet in example 1 of the present invention.
As shown in fig. 5, the pressing plate 22 is a circular plate, and matches with the shape of the cover body groove 211, and has a pressing plate hole 221 in the middle, four annular grooves 222 are uniformly arranged around the pressing plate hole 221, and four arc-shaped pressing plate flanges 223 are uniformly distributed along the radial direction on the edge.
The diameter of the pressing piece hole 221 is larger than the diameter of the cylindrical portion of the insulating base 31 and smaller than the diameter of the bottom end, so that the cylindrical portion of the insulating base 31 can pass through while ensuring that the flange 313 cannot pass through, thereby enabling the flange 313 to be fitted between the pressing piece 22 and the cover body groove 211.
The provision of the annular groove 222 helps to reduce machining stresses so that the overall shape of the preform 22 is flat and crack-free.
The shape of the press flange 223 matches the groove 215 and consists of a press through hole flange 224 and a latch 225 that are connected together. The wafer through hole flange 224 has a wafer through hole 226 formed therein. The shape of the fixture block 225 matches the shape of the fixture slot, and the thickness is smaller than that of the tabletting through hole flange 224, and the two are connected together to form a step.
When the pressing sheet 22 is placed in the cover body groove 211, the pressing sheet flange 223 is just placed in the groove 215, the pressing sheet 22 is rotated clockwise, the fixture block 225 slides into the fixture groove, and the pressing sheet stops after moving to the position of the stop block 217. At this time, the two pressing piece through holes 226 are vertically penetrated through the two second through holes 218b, respectively, to form through holes for inserting bolts to fix the pressing pieces 22 and the position-limiting cover body 21 together.
Effects and Effect of example 1
According to the many gears change over switch that this embodiment provided, including switch body, handle connecting piece and spacing lid subassembly, spacing lid subassembly is including dismantling spacing lid body and the preforming of connecting, with this body coupling of switch on the spacing lid body. Be equipped with the boss on the spacing lid body, when the preforming was placed on the spacing lid body, formed accommodation space between spacing lid body and the preforming, and the height of the flange of the bottom of handle connecting piece equals with the height of boss for the handle connecting piece can be installed and can rotate between spacing lid body and preforming. One end of the handle connecting piece is connected with the rotatable switching shaft of the switch body, the other end of the handle connecting piece is connected with the handle, and when the handle is rotated, the handle connecting piece drives the rotatable switching shaft to rotate together, so that gear control is carried out on a plurality of devices connected with the switch body. Consequently, because can dismantle between spacing lid body and the preforming and be connected, when needing to change the handle connecting piece, need not unpack the switch body apart, only need take off the preforming, with regard to the old handle connecting piece of detachable, install new handle connecting piece again, the structure of switch body does not change like this, just need not jointing equipment to debug labour saving and time saving.
In addition, the diameter of control panel's panel mounting hole is greater than the diameter of handle connecting piece, also is greater than the diameter of preforming, though the switch body is installed behind control panel, thereby can take out preforming and handle connecting piece before control panel and carry out the change of handle connecting piece, convenient and fast.
In addition, the shape and the preforming in lid groove cooperate, are equipped with outside extension's recess, protruding piece and dog in the lid groove, are equipped with on the preforming with recess matched with preforming flange, are equipped with the fixture block on the preforming flange, the shape and the draw-in groove of fixture block cooperate, consequently, can put into the lid inslot when the preforming, and the preforming is after lid inslot clockwise rotation certain angle, and the draw-in groove is gone into to preforming flange card to make preforming and lid groove block together well. The clamping of the pressing sheet and the cover body groove not only enables the pressing sheet and the cover body groove to be conveniently detached, but also is not easy to fall off, and vertical installation is facilitated.
In addition, evenly be equipped with four recesses, four protruding pieces and four shelves on the lid groove, evenly be equipped with four preforming flanges on the preforming, this makes the preforming can put into the lid groove at will and can both use.
< example 2>
The present embodiment specifically explains the structure of the multi-position selector switch 300. In this embodiment, the same components as those in embodiment 1 are given the same reference numerals, and the corresponding descriptions are omitted.
Fig. 6 is an exploded view of the structure of the multi-position selector switch and the control panel in embodiment 2 of the present invention.
As shown in fig. 6, the multi-stage changeover switch 300 is mounted on the control panel 200. The multi-stage shift switch 300 includes: switch body 10, spacing lid subassembly 20, handle connecting piece, mounting panel 40 and handle 50.
The handle connector has a handle mounting portion for fixing the handle and a body connecting portion connected to the rotatable switching shaft 12, and a flange is provided at a bottom end of the body connecting portion. In this embodiment, the handle attachment is attachment lock 60.
The connecting lock 60 is cylindrical, a lock core is arranged in the middle, and a plurality of lock flanges 61 are arranged at the bottom end along the radial direction.
The bottom end of the coupling lock 60 has an axial dimension smaller than the diameter of the panel mounting hole 201, and can pass through the panel mounting hole 201.
The top end of the connecting lock 60 is fixedly connected with the handle 50, the bottom end is placed into the accommodating space between the cover body groove 211 and the pressing sheet 22, and the thickness of the lock flange 61 is matched with the height of the accommodating space.
The bottom of the key cylinder has a cylinder hole (not shown in fig. 6) into which the rotatable switching shaft 12 is inserted so that the connecting lock 60 is connected with the rotatable switching shaft 12. The top end of the key cylinder has a key hole for inserting a key therein to control the rotation of the connecting lock 60. When the key is pulled out and the handle 50 is rotated, the connecting lock 60 cannot be rotated.
During installation, firstly, the limiting cover body 21 is fixedly installed on the switch body 10, then the limiting cover body 21, the connecting lock 60, the pressing sheet 22, the control panel 200 and the mounting plate 40 are sequentially connected together, at the moment, four limiting cover fixing holes 212, four mounting plate fixing holes 402 uniformly arranged around the four panel fixing holes 202 and the mounting plate 40 form four through holes, bolts are placed in the four through holes, so that the main part of the multi-gear change-over switch 300 is installed on the control panel 200, finally, the handle 50 is installed at the top end of the connecting lock 60, and the installation of the multi-gear change-over switch 300 on the control panel 200 is completed. After the key is inserted into the key hole, when the operator rotates the handle 50 in front of the control panel 200, the connecting lock 60 drives the rotatable switching shaft 12 to rotate together, thereby implementing gear control of a plurality of devices.
Effects and Effect of example 2
The same structure as that of embodiment 1 has the same action and effect as those of embodiment 1, and will not be described again.
The connecting lock is provided with a key hole, so that the rotatable switching shaft can be driven to rotate by rotating the selection handle when a key is inserted, the safety is higher, and irrelevant personnel can not unauthorized rotate the handle except for an operator who holds the key.
Further, in this embodiment, since it is the same as embodiment 1 except for the structure of the handle connecting member, the polygonal rotating shaft in embodiment 1 can be interchanged therewith. When the key is needed to control rotation, the connecting lock of the embodiment can be conveniently replaced by the multi-angle rotating shaft when not needed. Like this, the producer can produce the same switch body, according to customer's needs nimble equipment can, and the user is installed the back and need change the time also very convenient. In the prior art, when the connecting lock is used or not used, the limiting cover has different structures and cannot be freely replaced, so that different switch bodies need to be matched. For the manufacturer, different switch bodies need to be stocked, and for the user, the cost of replacement after installation is increased.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
The connection mode of the cover body groove and the pressing sheet can be other detachable connection modes, such as screw connection, besides the clamping structure.
Claims (10)
1. A multi-position change-over switch, comprising:
a switch body having a rotatable switching shaft capable of performing gear adjustment;
a handle for allowing an operator to rotate so as to drive the rotatable switching shaft to rotate;
a handle connector for mounting the handle to the switch body; and
a cover component is limited in position,
wherein the handle connecting piece is provided with a handle mounting part for fixing the handle and a body connecting part connected with the rotatable switching shaft, the bottom end of the body connecting part is provided with a flange,
spacing lid subassembly includes:
the limiting cover body is fixed on the switch body and is provided with a switching shaft through hole for the rotatable switching shaft to penetrate through; and
a pressing sheet detachably connected with the limiting cover body,
the limiting cover body is provided with a boss, the height of the boss is equal to that of the flange, and a space for accommodating the flange is formed between the pressing sheet and the boss, so that the handle connecting piece can rotate.
2. The multi-position selector switch according to claim 1, wherein:
wherein, the limiting cover body is provided with a cover body groove matched with the pressing sheet in shape, so that the pressing sheet can be placed in the cover body groove,
the bottom of the cover body groove is provided with the switching shaft through hole, the boss is arranged around the switching shaft through hole,
the pressure plate has a pressure plate hole which can be penetrated by the handle mounting part so that the handle is fixed on the handle mounting part.
3. The multi-position selector switch according to claim 2, wherein:
wherein, the groove of the cover body is also provided with a groove and a convex block which extend outwards,
the convex block extends inwards along the surface of the limiting cover body at one side close to the handle, and a clamping groove communicated with the groove is formed between the convex block and the bottom surface of the cover body groove,
the pressing sheet is provided with a pressing sheet flange, the shape of the pressing sheet flange is matched with the groove,
the pressing sheet flange is provided with a clamping block which can be clamped into the clamping groove, so that the pressing sheet is detachably connected with the limiting cover body.
4. The multi-position selector switch according to claim 3, wherein:
the cover body groove is provided with a protruding block, the protruding block is arranged at the bottom of the cover body groove, and the protruding block is connected with the protruding block.
5. The multi-position selector switch according to claim 1, wherein:
wherein the handle connecting piece is a multi-angle rotating shaft,
the multi-angle rotating shaft is provided with an insulating base and a connecting rotating shaft which are fixedly embedded together,
the insulating base has an insulating hole at a bottom thereof, the rotatable switching shaft is inserted into the insulating hole so that the polygonal rotation shaft is connected with the rotatable switching shaft,
the connecting rotating shaft is used for installing the handle, and when the handle is rotated, the multi-angle rotating shaft drives the rotatable switching shaft to rotate together.
6. The multi-position selector switch according to claim 5, wherein:
the insulating base is cylindrical, and the side face of the insulating base is provided with a plurality of protruding edges extending along the axial direction.
7. The multi-position selector switch according to claim 1, wherein:
wherein the middle of the handle connecting piece is provided with a lock core,
the bottom of the key cylinder has a key cylinder hole into which the rotatable switching shaft is inserted so that the handle link is connected with the rotatable switching shaft,
the top end of the lock cylinder is provided with a key hole for inserting a key into the key hole to control the rotation of the handle connecting piece.
8. The multi-position selector switch according to claim 1, wherein:
the limiting cover comprises a limiting cover body and is characterized in that four bosses are evenly arranged on the limiting cover body, and each boss is provided with a mounting hole.
9. The multi-position selector switch of claim 8, wherein:
the limiting cover body is provided with a limiting cover body, and the limiting cover body is provided with a mounting hole for mounting the limiting cover body on the pressing sheet.
10. The multi-position selector switch according to claim 1, wherein:
the limiting cover comprises a limiting cover body and is characterized in that four limiting cover fixing holes are formed in the limiting cover body and used for installing the limiting cover body on a panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112820575B (en) | 2024-04-26 |
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