CN115527793A - Operating mechanism for rotary switch - Google Patents
Operating mechanism for rotary switch Download PDFInfo
- Publication number
- CN115527793A CN115527793A CN202211264926.2A CN202211264926A CN115527793A CN 115527793 A CN115527793 A CN 115527793A CN 202211264926 A CN202211264926 A CN 202211264926A CN 115527793 A CN115527793 A CN 115527793A
- Authority
- CN
- China
- Prior art keywords
- knob
- rotary switch
- ratchet wheel
- piece
- operating mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
An operating mechanism for a rotary switch. The main rotary switch who solves at present needs extra to set up manual reset button just can carry out the problem of separating brake. The method is characterized in that: the base is provided with a transmission shaft (3) which is driven by the knob to rotate; the ratchet wheel (4) is connected with the transmission shaft and is driven by the transmission shaft to rotate; a locking plate (5), wherein a pawl (51) matched with the ratchet wheel is arranged on the locking plate and is used for locking after the knob is rotated in place; the first reset piece (6) is matched with the locking plate to provide force for driving the pawl to contact the ratchet wheel, and the unlocking piece (7) is used for pushing the locking plate and enabling the pawl to be separated from the ratchet wheel to realize unlocking under the driving of a manual brake separating mechanism or an electric brake separating mechanism when the switch is disconnected. The invention provides an operating mechanism for a rotary switch, which can reset a tripping mechanism by directly rotating a handle without additionally arranging a manual reset button, and has a compact, safe and simple structure.
Description
Technical Field
The invention relates to the field of rotary switches, in particular to an operating mechanism for a rotary switch.
Background
The rotary switch is a switch which controls the on-off of a main contact by rotating a handle. The rotary switch has two structural forms, namely a single-pole unit structure and a multi-pole multi-bit structure. The single-pole single-position rotary switch is commonly used with a rotary shaft potentiometer in application, and the multi-pole multi-position rotary switch is mainly used for switching working state lines.
On a rotary switch which adopts a ratchet wheel and ratchet structure for positioning, the reset of the rotary switch needs to press a clutch mechanism to separate a ratchet wheel and a ratchet, and the circuit can not be cut off by directly reversing.
Disclosure of Invention
In order to overcome the defects of the background art, the invention provides an operating mechanism for a rotary switch, which mainly solves the problem that the existing rotary switch can be switched off only by additionally arranging a manual reset key.
The technical scheme adopted by the invention is as follows:
the operating mechanism for the rotary switch comprises a base and a knob, wherein the base is provided with
The transmission shaft is driven by the knob to rotate;
the ratchet wheel is connected with the transmission shaft and is driven by the transmission shaft to rotate;
the locking plate is provided with a pawl matched with the ratchet wheel and used for locking after the knob rotates in place;
a first reset member cooperating with the locking plate to provide a force urging the pawl into contact with the ratchet wheel,
and the unlocking piece is used for unlocking by pushing the locking plate and enabling the pawl to leave the ratchet wheel under the drive of a manual brake separating mechanism or an electric brake separating mechanism when the switch is switched off.
The manual brake separating mechanism comprises a pushing part, a neutral part and a driving part which are arranged on the knob; the promotion portion is used for driving the transmission shaft rotates, just through the cooperation of idle stop portion and transmission shaft when knob reversing switch disconnection the drive division orders about the deblocking piece rotates and passes through the deblocking piece drives the lockplate and rotates and realize the unblock.
The base is internally provided with a second resetting piece, and the second resetting piece is used for providing the force for resetting the ratchet wheel.
The transmission shaft comprises an input shaft and an output shaft, a sunk groove used for installing the input shaft is formed in the output shaft, a first surface used for transmitting torque during forward rotation of the knob and a second surface used for transmitting torque during reverse rotation of the knob are arranged on the circumferential wall of the input shaft, the first surface is in contact with the inner wall of the sunk groove, and a gap is formed between the second surface and the inner wall of the sunk groove.
The hollow portion is an arc-shaped groove formed in the knob, the pushing portion is a pushing surface arranged in the arc-shaped groove, and a boss arranged in the arc-shaped groove is arranged on the outer circumferential wall of the transmission shaft.
The unlocking piece comprises a bottom plate, the front end of the bottom plate is provided with a top used for abutting against the locking piece, the bottom plate is further provided with a supporting column, the supporting column is provided with transmission teeth, and the driving part is driving teeth meshed with the transmission teeth.
The rotary knob is characterized in that a guide plate is arranged in the rotary knob, the driving teeth are arranged on the guide plate, a lock pin is arranged on the guide plate, a support for a strut to pass through is arranged on the base, and a clamping groove used for clamping and matching the lock pin when the switch is closed is formed in the support
The first reset piece is a first torsion spring, and one torsion pin of the first torsion spring is pressed on the locking plate and drives the locking plate to rotate towards the direction meshed with the ratchet wheel.
The second piece that resets is the second torsional spring, be equipped with the link plate on the ratchet, a turn round foot of second torsional spring with the link plate contact provides the ratchet and opens and close the rotatory power of breaking the direction towards the switch.
The electric brake separating mechanism is an electromagnet which comprises a push rod, and one end of the push rod is arranged opposite to the unlocking piece.
The invention has the beneficial effects that: the invention provides an operating mechanism for a rotary switch, which can reset a tripping mechanism by directly rotating a handle without additionally arranging a manual reset key, and has a compact, safe and simple structure.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is an internal perspective view of another embodiment of the present invention.
FIG. 3 is a perspective view of a knob according to one embodiment of the present invention.
Fig. 4 is an exploded view of a propeller shaft according to an embodiment of the present invention.
Fig. 5 is a partially sectional schematic view of a propeller shaft according to an embodiment of the present invention.
Fig. 6 is a partial perspective view of a propeller shaft according to an embodiment of the present invention.
Fig. 7 is a partially sectional schematic view of a propeller shaft according to an embodiment of the present invention.
Fig. 8 is a partial perspective view of a propeller shaft according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which: as shown in the figure, the operating mechanism for the rotary switch comprises a base 1 and a knob 2, wherein the base is provided with a transmission shaft 3 which is driven by the knob to rotate; the ratchet wheel 4 is connected with the transmission shaft and is driven by the transmission shaft to rotate; a locking plate 5, wherein a pawl 51 matched with the ratchet wheel is arranged on the locking plate and used for locking after the knob is rotated in place; the first reset piece 6 is matched with the locking plate to provide force for driving the pawl to contact the ratchet wheel, and the unlocking piece 7 is used for being driven by a manual brake separating mechanism or an electric brake separating mechanism to push the locking plate and enable the pawl to be separated from the ratchet wheel to realize unlocking when the switch is disconnected. The rotary switch is characterized in that when a knob rotates forwards, a transmission shaft is driven to rotate, the transmission shaft drives a ratchet wheel to rotate (can be driven through a key and the like), at the moment, a pawl of a locking plate is in one-way fit with the ratchet wheel under the action of a first resetting piece, when brake separation is needed, the two conditions are divided into two conditions, when the brake separation is needed, a knob is rotated backwards, a manual brake separation mechanism drives an unlocking piece to rotate, the unlocking piece drives the locking plate to rotate, the pawl of the locking plate is separated from the ratchet wheel by overcoming the elastic force of the first resetting piece, the ratchet wheel can be unlocked, when the brake separation is needed, the transmission shaft can be driven to rotate simultaneously by the reverse rotation of the ratchet wheel, when the rotary switch is powered, an electromagnet can be selected, when the electromagnet needs exist, a top head of the electromagnet stretches out to push the unlocking piece to rotate, the unlocking piece drives the locking plate to rotate, the unlocking piece enables the pawl of the locking plate to be separated from the ratchet wheel by overcoming the elastic force of the first resetting piece, the ratchet wheel can be unlocked, the ratchet wheel is preferably, the second resetting piece provides reverse rotation force of the ratchet wheel, the ratchet wheel can drive the transmission shaft to rotate simultaneously, and the effect of the ratchet wheel is achieved. When the mechanism performs switching-On operation, the input shaft synchronously drives the output shaft (the switch jumps when the knob does not reach the On indicating position), switching-On and locking are performed, and the input shaft does not interfere with the accelerated motion of the output shaft caused by the jump of the switch; when the mechanism is in opening operation, the knob reaches an indication ON position to trigger the ratchet mechanism to act, so that the output shaft is driven to rotate, and the switch jumps when the output shaft rotates to less than 90 degrees.
In the present embodiment, as shown in the figure, the manual brake-separating mechanism includes a pushing portion 21, a neutral portion 22 and a driving portion 23, which are provided on the knob 2; the promotion portion is used for driving the transmission shaft rotates, just through the cooperation of blank portion and transmission shaft when knob reversal switch disconnection the drive division orders about the deblocking piece rotates and passes through the deblocking piece drives the lockplate and rotates the realization unblock. When the reverse rotation, the knob can pass through the idle rotation certain angle of neutral position portion, does not drive the transmission shaft this moment and rotates, then drive division drives the unblocking piece and rotates, and the knob no longer drives the transmission shaft in step, can not receive the influence that ratchet pawl locking and can't reverse rotation.
In this embodiment, as shown in the figure, a second resetting piece 61 is further disposed in the base, and the second resetting piece is used for providing a force for resetting the ratchet. The second reset piece can be a torsion spring which stores energy in the forward rotation process and releases the force for resetting in the unlocking process.
In this embodiment, as shown in the figure, the transmission shaft includes an input shaft 31 and an output shaft 32, a sunk groove 321 for mounting the input shaft is provided on the output shaft, a first surface 311 for transmitting torque when the knob rotates forward and a second surface 312 for transmitting torque when the knob rotates backward are provided on the circumferential wall of the input shaft, the first surface contacts with the inner wall of the sunk groove, and a gap 313 exists between the second surface and the inner wall of the sunk groove. When corotation the time input shaft and output shaft synchronous rotation, during the reversal, there is the clearance, and the input shaft need rotate certain position just can drive the output shaft and rotate, reduces because the possible reversal jamming phenomenon that machining precision brought, and rotatable the installing on the knob of input shaft, the output shaft can be installed on the base. A gap is reserved between the input shaft and the output shaft, so that the interference of the input shaft to the output shaft when the switch jumps is avoided, the switch is opened quickly and easily to the greatest extent, the generation of electric arcs is reduced as much as possible, and the duration of the electric arcs is shortened as much as possible.
In this embodiment, as shown in the figure, the hollow portion is an arc-shaped groove formed in the knob, the pushing portion is a pushing surface formed in the arc-shaped groove, and the circumferential outer wall of the transmission shaft is provided with a boss 30 formed in the arc-shaped groove. When the rotation is performed, the boss is arranged in the arc-shaped groove, the knob rotates, a certain angle is formed, torque cannot be transmitted, and the pushing surface in the arc-shaped groove can drive the boss to drive the transmission shaft to rotate when the rotation is performed.
In this embodiment, as shown in the figure, the unlocking member includes a bottom plate 71, a top 711 for pressing the locking member is disposed at the front end of the bottom plate, a pillar 712 is further disposed on the bottom plate, a transmission gear 713 is disposed on the pillar, and the driving portion is a driving gear engaged with the transmission gear. When the locking plate rotates reversely, the unlocking piece is driven to rotate through the driving teeth and the transmission teeth so as to achieve the unlocking effect by driving the locking plate to rotate through the unlocking piece, the unlocking piece can be reset through an independent torsion spring or a torsion spring of the locking plate, the locking plate and the unlocking piece can even be contacted from beginning to end because the rotation angle of the locking plate is small in essence, and therefore the first resetting piece can be stably adopted to achieve the resetting.
In this embodiment, as shown in the figure, a guide plate 25 is arranged in the knob, the driving teeth are arranged on the guide plate, a lock pin 251 is arranged on the guide plate, a support 11 for a strut to pass through is arranged on the base, and a clamping groove 111 for clamping and matching the lock pin when the switch is closed is arranged on the support. When the switch is closed, the knob can be locked to a certain extent, so that the knob cannot rotate randomly, and the electric brake-separating can not be influenced by the force.
In this embodiment, as shown in the drawings, the first resetting member is a first torsion spring, and a torsion leg of the first torsion spring abuts against the locking plate and drives the locking plate to rotate in a direction engaging with the ratchet. Providing a force with which the pawl remains in contact with the ratchet.
In this embodiment, as shown in the figure, the second reset member is a second torsion spring, the ratchet is provided with a hanging plate 41, and a torsion pin 611 of the second torsion spring contacts with the hanging plate to provide a force for rotating the ratchet in the switch breaking direction. The force for providing the rapid breaking of the switch after the ratchet wheel and the pawl are broken.
In this embodiment, as shown in the figure, the electric brake separating mechanism is an electromagnet 8, the electromagnet includes a push rod 81, and one end of the push rod is opposite to the unlocking member.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The embodiments described with reference to the figures are illustrative and are intended to be illustrative of the invention and should not be construed as limiting the invention. The examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims (10)
1. Operating device for rotary switch, including base (1) and knob (2), its characterized in that: the base is provided with
The transmission shaft (3) is driven by the knob to rotate;
the ratchet wheel (4) is connected with the transmission shaft and is driven by the transmission shaft to rotate;
a locking plate (5), wherein a pawl (51) matched with the ratchet wheel is arranged on the locking plate and is used for locking after the knob is rotated in place;
a first reset member (6) cooperating with the locking plate to provide a force urging the pawl into contact with the ratchet wheel,
and the unlocking piece (7) is used for unlocking by pushing the locking plate and enabling the pawl to be separated from the ratchet wheel under the driving of a manual brake separating mechanism or an electric brake separating mechanism when the switch is switched off.
2. An operating mechanism for a rotary switch according to claim 1, characterized in that: the manual brake separating mechanism comprises a pushing part (21), a neutral part (22) and a driving part (23) which are arranged on the knob (2); the promotion portion is used for driving the transmission shaft rotates, just through the cooperation of blank portion and transmission shaft when knob reversal switch disconnection the drive division orders about the deblocking piece rotates and passes through the deblocking piece drives the lockplate and rotates the realization unblock.
3. The operating mechanism for a rotary switch according to claim 2, characterized in that: and a second resetting piece (61) is further arranged in the base and is used for providing the force for resetting the ratchet wheel.
4. The operating mechanism for a rotary switch according to claim 3, characterized in that: the transmission shaft comprises an input shaft (31) and an output shaft (32), a sunk groove (321) for mounting the input shaft is formed in the output shaft, a first surface (311) for transmitting torque in the forward rotation process of the knob and a second surface (312) for transmitting torque in the reverse rotation process of the knob are arranged on the circumferential wall of the input shaft, the first surface is in contact with the inner wall of the sunk groove, and a gap (313) exists between the second surface and the inner wall of the sunk groove.
5. The operating mechanism for a rotary switch according to claim 4, wherein: the hollow part is an arc-shaped groove arranged on the knob, the pushing part is a pushing surface arranged in the arc-shaped groove, and a boss (30) arranged in the arc-shaped groove is arranged on the circumferential outer wall of the transmission shaft.
6. The operating mechanism for a rotary switch according to claim 5, characterized in that: the unlocking piece comprises a bottom plate (71), the front end of the bottom plate is provided with a top (711) used for abutting against the locking piece, the bottom plate is further provided with a support column (712), the support column is provided with transmission teeth (713), and the driving part is driving teeth meshed with the transmission teeth.
7. The operating mechanism for a rotary switch according to claim 6, wherein: the novel switch is characterized in that a guide plate (25) is arranged in the knob, the driving teeth are arranged on the guide plate, a lock pin (251) is arranged on the guide plate, a support (11) for a support column to penetrate through is arranged on the base, and a clamping groove (111) used for clamping and matching the lock pin when the switch is closed is arranged on the support.
8. The operating mechanism for a rotary switch according to claim 7, wherein: the first reset piece is a first torsion spring, and one torsion pin of the first torsion spring is pressed on the locking plate and drives the locking plate to rotate towards the direction meshed with the ratchet wheel.
9. The operating mechanism for a rotary switch according to claim 8, wherein: the second piece that resets is the second torsional spring, be equipped with link plate (41) on the ratchet, a torsion foot (611) of second torsional spring with the link plate contact provides the ratchet and divides the rotatory power of direction towards the switch.
10. An operating mechanism for a rotary switch according to claim 1, characterized in that: the electric brake separating mechanism is an electromagnet (8) which comprises a push rod (81), and one end of the push rod is opposite to the unlocking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264926.2A CN115527793A (en) | 2022-10-17 | 2022-10-17 | Operating mechanism for rotary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264926.2A CN115527793A (en) | 2022-10-17 | 2022-10-17 | Operating mechanism for rotary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115527793A true CN115527793A (en) | 2022-12-27 |
Family
ID=84701426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211264926.2A Pending CN115527793A (en) | 2022-10-17 | 2022-10-17 | Operating mechanism for rotary switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115527793A (en) |
-
2022
- 2022-10-17 CN CN202211264926.2A patent/CN115527793A/en active Pending
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