CN112820575B - Multi-gear change-over switch - Google Patents
Multi-gear change-over switch Download PDFInfo
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- CN112820575B CN112820575B CN201911130096.2A CN201911130096A CN112820575B CN 112820575 B CN112820575 B CN 112820575B CN 201911130096 A CN201911130096 A CN 201911130096A CN 112820575 B CN112820575 B CN 112820575B
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- 238000003825 pressing Methods 0.000 claims description 51
- 238000009434 installation Methods 0.000 abstract description 9
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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
-
- 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 transfer switches, and provides a multi-gear transfer 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 limit cover assembly; wherein, the handle connecting piece has the handle installation department that is used for fixed handle and with rotatable switching shaft connection's body coupling portion, the bottom of this body coupling portion has the flange, 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 change the handle connecting piece, meanwhile, the structure of the switch body is not changed, and the connection equipment is not required to debug, so that time and labor are saved.
Description
Technical Field
The invention belongs to the field of transfer switches, and particularly relates to a multi-gear transfer switch.
Background
The multi-gear change-over switch is a switch which can be used for switching and connecting two or more power supplies or loads and controlling the operation of various devices, and is widely used in daily life and industrial production, such as power stations, rail transfer stations, high-speed rail locomotives, subway locomotives, ships and the like. The multi-gear change-over switch mainly comprises a switch body and a handle. When the multi-gear change-over switch is installed, the handle is installed on the outer side of the control panel for an operator to rotate, the rotatable change-over shaft in the switch body is driven to rotate through the rotation of the handle, the corresponding equipment is opened and closed, and other parts are packaged on the inner side of the control panel.
The handle is divided into a general handle and a handle having a locking function. The common handle can be rotated at any time when needed. The common handle is generally installed in the following way: the rotatable switching shaft passes through the small hole limit cover of the switch body closest to the control panel and then is directly connected with the handle. Thus, the length of the extending end of the rotatable switching shaft, i.e. the extending small hole limit cover, is required to be longer. The locking handle with locking function connects the handle and the rotatable switching shaft by means of the lock, and when rotation is required, the key can be inserted into the key hole in the lock to rotate. The installation mode of the locking handle is different from that of a common handle, the small hole limit cover is required to be replaced by the large hole limit cover, the lock penetrates through the large hole limit cover, the handle is installed on 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 cylinder is extremely easy to consume due to frequent rotation, and needs to be replaced from time to time. The existing lock core is directly connected with the switch body, when the lock core is replaced, the handle is required to be detached firstly, then the switch body is taken out from the rear of the control panel, and then the lock core can be taken out for replacement after the switch body is detached. Thus, after the switch body is assembled again, the switch body needs to be reinstalled and the connection equipment is debugged. Commissioning a device typically requires a day of time, which is both cumbersome and time consuming for the operating conditions on site. In addition, when the common handle is replaced by the lock core handle, not only the type of the limit cover, but also the rotatable switching shaft in the switch body are required to be replaced. Therefore, the parts are required to be found and reassembled, and the debugging is required, so that time and labor are wasted.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a multi-gear change-over switch capable of completing replacement of a lock cylinder before a control panel without disassembling a switch body.
The present invention provides a multi-gear change-over switch having such features that it comprises: a switch body having a rotatable switching shaft capable of performing gear adjustment; the handle is used for enabling 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 cap assembly, wherein the handle connector has a handle mounting portion for fixing the handle and a body connecting portion connected with the rotatable switching shaft, the bottom end of the body connecting portion has a flange, the cap assembly includes: the limiting cover body is fixed on the switch body and provided with a switching shaft through hole for allowing the rotatable switching shaft to penetrate; and the pressing piece 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 piece and the boss, so that the handle connecting piece can rotate.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: wherein, be equipped with on the spacing lid body with the shape assorted lid groove of preforming for the preforming can be put into the lid inslot, and the bottom in lid groove has the switching shaft through-hole, is equipped with the boss around the switching shaft through-hole, and the preforming has the preforming hole, thereby can be passed by handle installation department and make the handle fixed on handle installation department.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: wherein, still be equipped with outwards extended recess and protruding piece on the lid groove, protruding piece is along the inwards extension of the surface of the spacing lid body of one side that is close to the handle to form the draw-in groove that is linked together with the recess between the bottom surface in lid groove, the preforming has the preforming flange, the shape and the recess assorted of this preforming flange are equipped with the fixture block on the preforming flange, in this fixture block can block into the draw-in groove for preforming and spacing lid body detachably are connected.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: the cover body groove is also provided with a baffle block, and the baffle block is arranged at the bottom of the cover body groove and connected with the convex block, so that the tablet stops moving after moving to the position of the baffle block when being clamped into the clamping groove.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: wherein, the handle connecting piece is the polygonal pivot, and this polygonal pivot has the insulating base and the connection pivot that the fixed gomphosis is in the same place, and insulating base's bottom has the insulating hole, thereby rotatable switching shaft inserts the insulating hole and makes polygonal pivot and rotatable switching shaft be connected, and the connection pivot is used for installing the handle, and when the twist grip, the polygonal pivot drives rotatable switching shaft and rotates together.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: the insulating base is cylindrical, and the side surface is provided with a plurality of convex ribs extending along the axial direction.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: the middle of the handle connecting piece is provided with a lock core, the bottom of the lock core is provided with a lock core hole, the rotatable switching shaft is inserted into the lock core hole, so that the handle connecting piece is connected with the rotatable switching shaft, and the top end of the lock core is provided with a key hole for a key to be inserted into to control the rotation of the handle connecting piece.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: wherein, evenly be equipped with four bosss on the spacing lid body, be equipped with the mounting hole on every boss.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: four pressing through holes are uniformly formed in the pressing sheet and are matched with the mounting holes so that the pressing sheet and the limiting cover body are mounted together.
In the multi-gear change-over switch provided by the invention, the characteristics can be as follows: wherein, be equipped with four panel mounting holes on the spacing lid body for install spacing lid body on the panel.
Effects and effects 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, form 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 between spacing lid body and preforming and can rotate. 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 connected devices connected with the switch body. Therefore, because the limiting cover body and the pressing piece are detachably connected, when the handle connecting piece is required to be replaced, the switch body is not required to be disassembled, the old handle connecting piece can be taken down only by taking down the pressing piece, and the new handle connecting piece is reinstalled.
Drawings
FIG. 1 is a schematic diagram of a multi-gear change-over switch and a control panel according to an embodiment 1 of the present invention;
FIG. 2 is an exploded view of the structure of the multi-gear change-over switch and the control panel in embodiment 1 of the present invention;
Fig. 3 is a schematic structural view of a polygonal shaft in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a stopper body in embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a tablet in example 1 of the present invention; and
Fig. 6 is an exploded view of the structure of the multi-gear change-over switch and the control panel in embodiment 2 of the present invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects of the present invention easy to understand, the present invention is specifically described below with reference to the embodiments and the accompanying drawings.
Example 1 ]
The present embodiment specifically describes the structure of the multi-speed change-over switch 100.
Fig. 1 is a schematic structural diagram of a multi-gear change-over switch and a control panel in embodiment 1 of the present invention.
Fig. 2 is an exploded view of the structure of the multi-gear change-over switch and the control panel in embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a polygonal shaft in embodiment 1 of the present invention;
As shown in fig. 1 to 3, the multi-stage shift switch 100 is mounted on a control panel 200. The multi-gear change-over switch 100 includes: switch body 10, limit cap assembly 20, handle connector, mounting plate 40 and handle 50.
The control panel 200 has a panel mounting hole 201 formed in the middle thereof and four panel fixing holes 202 uniformly distributed around the panel mounting hole 201. The diameter of the panel mounting hole 201 is greater than the axial dimension of the handle connector, allowing it to pass through. The panel securing holes 202 are used to mount the retention cap 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) according to a predetermined combined connection scheme. The rotatable switching shaft 12 is a square cylinder, and penetrates through and extends out of the four contact layers 11a, so that the four contact layers 11a can be synchronously adjusted by rotating the rotatable switching shaft 12, and gear control of a plurality of connected devices according to a preset combined connection scheme is further realized.
The limiting cap assembly 20 comprises a limiting cap body 21 and a pressing piece 22 which are detachably connected. The limit cover body 21 is mounted on the switch body 10, and a cover body 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 with a hole in the middle, is matched with the shape of the cover body groove 211, can be placed into the cover body groove 211 and forms a certain accommodating space between the cover body grooves 211. The diameter of the presser piece 22 is smaller than the diameter 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 connector is a polygonal shaft 30.
The polygonal shaft 30 has an insulating base 31 and a connecting shaft 32 fixedly fitted together. In this embodiment, the insulating base 31 is made of insulating plastic, the connecting shaft 32 is made of metal, and the two are fixedly embedded together by injection molding technology.
The insulating base 31 has a cylindrical shape with a diameter smaller than the circular hole in the middle of the pressing piece 22 and the panel mounting hole 201.
The insulating base 31 has a square insulating hole 311 at its bottom, a plurality of axially extending raised ribs 312 on its side, and a plurality of radially extending flanges 313 flush with the bottom.
The shape of the insulating hole 311 is matched with the shape of the rotatable switching shaft 12, and the hole depth is larger than the length of the extending end of the rotatable switching shaft 12, i.e. the length of the rotatable switching shaft 12 extending out of the limit cover body 21.
The provision of the protruding ribs 312 helps to reduce stress during processing so that cracks do not occur on the surface of the insulating base 31, thereby improving the aesthetic appearance and the service life.
The bottom end of the insulating base 31 can be placed into the receiving space between the cover groove 211 and the pressing piece 22, and the thickness of the flange 313 matches the height of the receiving space.
The connecting shaft 32 is square and columnar, passes through a mounting plate mounting hole 401 and a mounting plate pressing plate 403 in the middle of the mounting plate 40, and then is connected to the handle 50 at the top end. The top end of the connection shaft 32 has a screw hole (not shown in fig. 3) into which a bolt is screwed and then the handle 50 is better fixed to the top end of the connection shaft 32.
During installation, the limiting cover body 21 is fixed onto the switch body 10 by using screws, then the limiting 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 limiting cover fixing holes 212, four panel fixing holes 202 and four mounting plate fixing holes 402 uniformly formed in the periphery of 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 mounted onto the control panel 200, and finally the handle 50 is mounted onto the top end of the polygonal rotating shaft 30, so that the multi-gear change-over switch 100 is mounted on the control panel 200. When the operator rotates the handle 50 in front of the control panel 200, the polygonal shaft 30 drives the rotatable switching shaft 12 to rotate together, thereby achieving gear control of a plurality of devices.
Fig. 4 is a schematic structural view of a stopper body in embodiment 1 of the present invention.
As shown in fig. 4, the middle of the limiting cover body 21 is provided with a cover body groove 211, and four corners are respectively provided with a limiting cover fixing hole 212.
The bottom of the cover slot 211 has a switching shaft through hole 213 that is clearance fit with the rotatable switching shaft 12 for passage therethrough.
With the switching shaft through hole 213 as a symmetry point, the cover body groove 211 is further provided with two first bosses 214a and two second bosses 214b, and the heights of the first bosses 214a and the second bosses 214b are equal to the height of the flange 313.
The first boss 214a and the second boss 214b are provided with grooves 215 extending outwards.
The groove 215 is an arc-shaped groove, the bottom surface of the groove is on the same horizontal plane with the upper surface of the first boss 214a or the second boss 214b, and the two axial surfaces and the circumferential surface of the groove are perpendicular to the upper surface of the first boss 214a or the second boss 214 b.
Four protruding blocks 216 and four stoppers 217 are also uniformly arranged at the bottom of the cover body groove 211.
The protruding blocks 216 respectively share one side with the grooves 215 on both sides, extend inward along the surface of the limit cap body 21 near one side of the handle 50, and form a clamping groove communicating with the grooves 215 with the bottom surface of the cap body groove 211. The stop 217 is disposed at the bottom of the cover slot 211 and connected to the protruding block 216, so that the pressing piece 22 stops moving after moving to the stop 217 when being clamped into the clamping slot.
The first boss 214a has a first through hole 218a and a first hex 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 218b. A second hexagonal counterbore (not shown) is provided in the cover slot 211 adjacent one side of the switch body 10 at the location of the second through hole 218b for receiving a hex nut when the bolt is inserted into the through hole 218b.
Fig. 5 is a schematic structural view of a tablet in example 1 of the present invention.
As shown in fig. 5, the pressing piece 22 is a circular plate, and is matched with the shape of the cover body groove 211, a pressing piece hole 221 is arranged in the middle, four annular grooves 222 are uniformly arranged around the periphery of the pressing piece hole 221, and four arc-shaped pressing piece flanges 223 are uniformly distributed along the radial direction on the edge.
The diameter of the tab 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 installed between the tab 22 and the cover groove 211.
The provision of the annular recess 222 helps to reduce the machining stresses so that the overall morphology of the preform 22 is flat and crack-free.
The shape of the pressing flange 223 is matched with that of the groove 215, and the pressing flange consists of a pressing through hole flange 224 and a clamping block 225 which are connected together. The tab through hole flange 224 has a tab through hole 226 thereon. The shape of the clamping block 225 is matched with the shape of the clamping groove, the thickness of the clamping block is smaller than that of the flange 224 of the pressing piece through hole, and the clamping block and the clamping groove are connected together to form a step.
When the pressing piece 22 is placed in the cover body groove 211, the pressing piece flange 223 is just placed in the groove 215, the pressing piece 22 is rotated clockwise, the clamping block 225 slides into the clamping groove, and the pressing piece stops after moving to the position of the stop block 217. At this time, the two pressing piece through holes 226 are respectively penetrated up and down with the two second through holes 218b to form through holes for inserting bolts to fix the pressing piece 22 with the cap body 21.
Example 1 operation and Effect
According to the multi-gear change-over switch provided by the embodiment, 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, form 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 between spacing lid body and preforming and can rotate. 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 connected devices connected with the switch body. Therefore, because the limiting cover body and the pressing piece are detachably connected, when the handle connecting piece is required to be replaced, the switch body is not required to be disassembled, the old handle connecting piece can be taken down only by taking down the pressing piece, and the new handle connecting piece is reinstalled.
In addition, the diameter of the panel mounting hole of the control panel is larger than that of the handle connecting piece and also larger than that of the pressing piece, and the pressing piece and the handle connecting piece can be taken out before the control panel to replace the handle connecting piece, so that the switch is convenient and quick.
In addition, the shape in lid groove cooperatees with the preforming, is equipped with recess, protruding piece and the dog that outwards extends on the lid groove, is equipped with on the preforming with recess matched with preforming flange, is equipped with the fixture block on the preforming flange, and 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 at the lid inslot after clockwise rotation certain angle, the draw-in groove is gone into to the 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 ensures that the pressing sheet and the cover body groove are convenient to detach, but also are not easy to fall off, and the vertical installation is convenient.
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 both use in the lid groove of putting into at will.
Example 2]
The present embodiment specifically describes the structure of the multi-speed change-over switch 300. In this embodiment, the same structures as those in embodiment 1 are given the same reference numerals, and the corresponding description is omitted.
Fig. 6 is an exploded view of the structure of the multi-gear change-over switch and the control panel in embodiment 2 of the present invention.
As shown in fig. 6, the multi-gear change-over switch 300 is mounted on the control panel 200. The multi-gear change-over switch 300 includes: switch body 10, limit cap assembly 20, handle connector, mounting plate 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 connector is a connector lock 60.
The connecting lock 60 is cylindrical, with a lock cylinder in the middle and a plurality of lock flanges 61 in the radial direction at the bottom end.
The bottom end of the connection lock 60 has an axial dimension smaller than the diameter of the panel mounting hole 201 and is capable of passing through the panel mounting hole 201.
The top end of the connection lock 60 is fixedly connected with the handle 50, the bottom end is placed in the accommodating space between the cover body groove 211 and the pressing piece 22, and the thickness of the lock flange 61 is matched with the height of the accommodating space.
The bottom of the lock cylinder has a cylinder bore (not shown in fig. 6) into which the rotatable switching shaft 12 is inserted to connect the connection lock 60 with the rotatable switching shaft 12. The top end of the lock cylinder has a key hole for a key to be inserted therein to control the rotation of the coupling lock 60. If the key is pulled out, the connection lock 60 cannot be turned when the handle 50 is 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 this time, four limiting cover fixing holes 212, four panel fixing holes 202 and four mounting plate fixing holes 402 uniformly formed in the periphery of 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, and finally, the handle 50 is installed on the top end of the connecting lock 60, so that 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 an operator rotates the handle 50 in front of the control panel 200, the connection lock 60 drives the rotatable switching shaft 12 to rotate together, thereby realizing gear control of a plurality of devices.
Example 2 actions and Effect
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 here.
The connecting lock is provided with a key hole, and the rotatable switching shaft can be driven to rotate by the rotation of the selection handle when the key is inserted, so that the safety is higher, and an irrelevant person can not unauthorized rotate the handle except an operator who holds the key.
In addition, in this embodiment, since the structure of the handle connector is the same as that of embodiment 1, the polygonal shaft of embodiment 1 can be used interchangeably therewith. When the key is needed to control rotation, the connecting lock of the embodiment can be conveniently replaced by a polygonal rotating shaft when not needed. Therefore, the same switch body can be produced by a manufacturer, the switch body can be flexibly assembled according to the needs of customers, and the switch body is convenient to replace after being installed by the customers. In the prior art, as the structure of the limit cover is different between the use of the connection lock and the non-use of the connection lock, the limit cover cannot be freely replaced, and different switch bodies are needed to be matched. For manufacturers, it is necessary to store different switch bodies, and for users, the cost of replacement after installation increases.
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 (8)
1. A multi-gear change-over switch, comprising:
a switch body having a rotatable switching shaft capable of performing gear adjustment;
the handle is used for enabling 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 cover component is arranged on the upper surface of the base,
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,
The limit cap assembly includes:
the limit cover body is fixed on the switch body and provided with a switching shaft through hole for the rotatable switching shaft to penetrate through; and
A pressing sheet detachably connected with the limit cover body,
The limiting cover body is provided with a boss, the height of the boss is equal to that of the flange, a space for accommodating the flange is formed between the pressing piece and the boss, so that the handle connecting piece can rotate,
Wherein the limit cover body is provided with a cover body groove matched with the shape of the pressing sheet, 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 pressing piece is provided with a pressing piece hole which can be penetrated by the handle mounting part so as to fix the handle on the handle mounting part, the cover body groove is also provided with a groove and a protruding block which extend outwards,
The protruding block extends inwards along the surface of the limit cover body close to one side of the handle, a clamping groove communicated with the groove is formed between the protruding block and the bottom surface of the cover body groove,
The press sheet has a press sheet flange, the shape of which matches the groove,
The pressing piece flange is provided with a clamping block which can be clamped into the clamping groove, so that the pressing piece is detachably connected with the limiting cover body.
2. The multi-speed change-over switch of claim 1, wherein:
And the cover body groove is also provided with a baffle block which is arranged at the bottom of the cover body groove and connected with the convex block, so that the pressing sheet stops moving after moving to the position of the baffle block when being clamped into the clamping groove.
3. The multi-speed change-over switch of claim 1, wherein:
wherein the handle connecting piece is a polygonal rotating shaft,
The polygonal rotating shaft is provided with an insulating base and a connecting rotating shaft which are fixedly embedded together,
The bottom of the insulating base is provided with an insulating hole, the rotatable switching shaft is inserted into the insulating hole so that the polygonal 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 polygonal rotating shaft drives the rotatable switching shaft to rotate together.
4. A multi-gear change-over switch according to claim 3, wherein:
The insulating base is cylindrical, and the side face is provided with a plurality of protruding ribs extending along the axial direction.
5. The multi-speed change-over switch of claim 1, wherein:
Wherein, a lock core is arranged in the middle of the handle connecting piece,
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,
The top end of the lock cylinder is provided with a key hole for controlling the rotation of the handle connecting piece when a key is inserted into the key hole.
6. The multi-speed change-over switch of claim 1, wherein:
Four bosses are uniformly arranged on the limiting cover body, and each boss is provided with a mounting hole.
7. The multi-position switch of claim 6, wherein:
Four pressing sheet through holes are uniformly formed in the pressing sheet and are used for being matched with the mounting holes so that the pressing sheet and the limiting cover body are mounted together.
8. The multi-speed change-over switch of claim 1, wherein:
The limiting cover body is provided with four limiting cover fixing holes, and the four limiting cover fixing holes are used for installing the limiting cover body on the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130096.2A CN112820575B (en) | 2019-11-18 | 2019-11-18 | Multi-gear change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130096.2A CN112820575B (en) | 2019-11-18 | 2019-11-18 | Multi-gear change-over switch |
Publications (2)
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|---|---|
| CN112820575A (en) | 2021-05-18 |
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