CN109728506B - Pressing plate locking device - Google Patents
Pressing plate locking device Download PDFInfo
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- CN109728506B CN109728506B CN201811385099.6A CN201811385099A CN109728506B CN 109728506 B CN109728506 B CN 109728506B CN 201811385099 A CN201811385099 A CN 201811385099A CN 109728506 B CN109728506 B CN 109728506B
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- platen
- locking
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- 230000004308 accommodation Effects 0.000 description 4
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- 238000010276 construction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
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Abstract
The invention provides a pressing plate locking device, which comprises: a housing, a portion of which serves as a positioning holding portion and has a handle accommodating chamber for accommodating the platen handle, the positioning holding portion being located between the platen handle and the platen base when the platen handle is in the handle accommodating chamber so as to keep a plug of the platen handle in a separated state from a conductive insertion hole of the platen base; an extension structure having an extended position and a retracted position relative to the housing and capable of locking the platen handle with the positioning retention portion when the platen handle is in the handle receiving cavity; the lock body component is used for locking the extending structure and is arranged in the lock body accommodating cavity of the shell, the lock body component is in a locking state and an unlocking state, and when the lock body component is in the locking state, the lock body component locks the extending structure; when the lock body assembly is in an unlocked state, the lock body assembly unlocks the extension structure. The invention solves the problem of potential safety hazard of misoperation of the power wiring device in the prior art.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a pressing plate locking device.
Background
The wire spring type pressing plate is a common electric power wiring device and comprises a base and a handle, wherein two sockets are arranged on the base, two conducting plugs are arranged on the corresponding handle, the middle bottom of the handle is connected to the base through a spring and a rotating shaft, and the spring enables the handle to be elastically stuck to the base. By pulling up the re-rotation handle, the two conducting plugs can be inserted into or pulled out of the two sockets which are rotationally staggered, the power lines respectively connected with the two sockets are connected during insertion, and the power lines respectively connected with the two sockets are cut off during staggering.
The secondary pressing operation of the protection device in the power system has no effective control means. When overhauling, the operation and maintenance personnel withdraw the secondary pressing plate according to the operation ticket, and then the overhauling personnel compares the operation ticket with the secondary pressing plate according to experience to throw and withdraw the prompt card to operate, so that the forced locking of the secondary pressing plate can not be realized, and the situation that the primary equipment artificially expands accidents due to the misthrowing of the secondary pressing plate occurs.
The prior safety measures adopt insulating adhesive tapes to seal the pressing plate socket or sleeve the insulating sleeve to insulate and isolate the wire spring type pressing plate at the plug, the operation is complex, the forced locking of the pressing plate can not be realized, and the prompting function can only be realized.
The existing forced locking of the pressing plate needs to be installed in advance, or the pressing plate needs to be modified and upgraded, the modification cost is high, and part of the pressing plate needs to be installed in a power failure mode.
Therefore, the power wiring device in the prior art has the problem of potential safety hazard of misoperation.
Disclosure of Invention
The invention mainly aims to provide a pressing plate locking device which solves the problem that the power wiring device in the prior art has potential safety hazards of misoperation.
In order to achieve the above object, the present invention provides a platen lock device including: a housing, a portion of which serves as a positioning holding portion and has a handle accommodating chamber for accommodating the platen handle, the positioning holding portion being located between the platen handle and the platen base when the platen handle is in the handle accommodating chamber so as to keep a plug of the platen handle in a separated state from a conductive insertion hole of the platen base; the extending structure is provided with an extending position and a retracting position relative to the shell, and can lock the pressing plate handle and the positioning and retaining part when the pressing plate handle is positioned in the handle accommodating cavity; the lock body component is used for locking the extending structure and is arranged in the lock body accommodating cavity of the shell, the lock body component is in a locking state and an unlocking state, when the lock body component is in the locking state, the lock body component locks the extending structure, the extending structure is matched with the positioning and retaining part to enable the pressing plate handle to be in the handle accommodating cavity, and the extending structure is kept at the extending position; when the lock body assembly is in an unlocking state, the lock body assembly unlocks the extending structure, the extending structure does not lock the position of the positioning and holding part, and the pressing plate handle can be separated from the handle accommodating cavity.
Further, the positioning holding portion has a groove that accommodates the plug of the platen handle.
Further, the extension structure is slidably coupled to the housing to switch the extension structure between the extended position and the retracted position.
Further, the extending structure is a first lock tongue, and when the lock body assembly is switched from the unlocking state to the locking state, the first lock tongue extends out of the shell and stops the pressing plate handle so as to prevent the pressing plate handle from slipping out of the handle accommodating cavity.
Further, the protruding structure is a locking plate, and the first end of the locking plate penetrates through the yielding opening of the shell and protrudes into the shell, the second end of the locking plate is always located outside the shell and can be changed relative to the position of the positioning and holding portion, when the lock body assembly is in a locking state, the first end of the protruding structure is locked with the shell, and the second end of the protruding structure is pressed and connected to the positioning and holding portion and the pressing plate handle in a pressing mode, so that the pressing plate handle is prevented from sliding out of the handle accommodating cavity.
Further, the lock body assembly includes: the lock body is provided with a radial hole communicated with the lock body accommodating cavity; the second spring bolt, the second spring bolt slides and sets up in radial hole, and the lateral wall in lock body holding chamber has the locking position with second spring bolt complex, and a portion of second spring bolt can stretch out in the radial hole and with locking position joint to make the lock body can be with stretching out the structure locking.
Further, the lock body is provided with a limiting groove, and the inner wall of the lock body accommodating cavity is provided with a limiting piece which is accommodated in the limiting groove to control the movement range of the lock body.
Further, the lock body assembly further comprises a lock body reset piece, wherein the lock body reset piece provides reset force for the lock body to move from the locking state to the unlocking state so as to unlock the extending structure by the lock body, and the extending structure is switched from the extending position to the retracting position.
Further, the lock body resetting piece is directly abutted between the lock body and the shell; or the lock body resetting piece is abutted between the lock body and the shell through the extending structure.
Further, the second locking tongue comprises two sub-parts, which can be moved closer to or further away from each other, and when moved away from each other, a portion of which can protrude from the radial hole and engage the locking position to lock the lock body.
Further, the lock body assembly further includes: the lock cylinder is pivoted in the lock body; the adapter block is in driving connection with the lock cylinder, the second lock tongue is provided with a through hole, the adapter block is arranged in the through hole, when the lock cylinder drives the adapter block to rotate, the adapter block extrudes the inner wall of the through hole, and the second lock tongue is retracted to be separated from the locking position.
Further, the lock body is internally provided with a fan-shaped groove, and a part of the adapter block is positioned in the fan-shaped groove, so that the rotating angle of the adapter block is 0-90 degrees.
Further, the lock body assembly further comprises a lock tongue reset piece, and two ends of the lock tongue reset piece are respectively abutted on the second lock tongue and the lock body so as to provide reset force for the second lock tongue to extend out of the lock body.
Further, the lock body assembly further comprises a retainer ring, and the retainer ring is arranged between the lock body and the lock cylinder, so that the lock cylinder is limited in the lock body.
Further, the lock body assembly further comprises a wireless code chip, and the wireless code chip cover is arranged at the opening of the lock body accommodating cavity so as to identify the unlocking key.
By applying the technical scheme of the invention, one part of the shell is used as the positioning and holding part and is provided with the handle accommodating cavity for accommodating the pressing plate handle, and when the pressing plate handle is positioned in the handle accommodating cavity, the positioning and holding part is positioned between the pressing plate handle and the pressing plate base so as to keep the plug of the pressing plate handle and the conductive jack of the pressing plate base in a separated state; the extending structure has an extending position and a retracting position relative to the shell, and can lock the pressing plate handle with the positioning and retaining part when the pressing plate handle is positioned in the handle accommodating cavity; the lock body assembly is arranged in the lock body accommodating cavity of the shell, the lock body assembly is in a locking state and an unlocking state, when the lock body assembly is in the locking state, the lock body assembly locks the extending structure, so that the extending structure is matched with the positioning and retaining part to enable the pressing plate handle to be in the handle accommodating cavity, and the extending structure is kept at the extending position; when the lock body assembly is in an unlocking state, the lock body assembly unlocks the extending structure, the extending structure does not lock the position of the positioning and holding part, and the pressing plate handle can be separated from the handle accommodating cavity.
Due to the arrangement of the positioning and retaining part, a stop effect can be achieved between the pressing plate handle and the pressing plate base, so that a separation state, namely a power-off state, is kept between the plug of the pressing plate handle and the pressing plate base, the extending structure is locked through the lock body assembly, the positioning and retaining part and the pressing plate handle can be locked, forced locking of the power-off state of the pressing plate is achieved, and therefore electric shock of workers caused by misoperation can be effectively avoided, and safety accidents are caused.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view showing a structure of a locked state of a power wiring device according to a first embodiment of the present invention;
FIG. 2 shows a schematic structural view of the platen of FIG. 1;
FIG. 3 shows an exploded view of the platen lock device of FIG. 1;
FIG. 4 shows a cross-sectional view of FIG. 1;
FIG. 5 shows a cross-sectional view taken along A-A in FIG. 4;
FIG. 6 shows a B-B cross-sectional view of FIG. 4;
FIG. 7 is a schematic diagram showing an unlocked state of the power wiring device of FIG. 1;
FIG. 8 shows a cross-sectional view of FIG. 7;
FIG. 9 shows a cross-sectional view taken along A-A in FIG. 8;
FIG. 10 shows a B-B cross-sectional view of FIG. 8;
fig. 11 is a schematic structural view showing a locked state of a power wiring device according to a second embodiment of the present invention;
FIG. 12 shows a schematic structural view of the platen of FIG. 11;
FIG. 13 shows an exploded view of FIG. 11;
FIG. 14 is a schematic view showing an internal structure of the power wiring device of FIG. 11;
FIG. 15 shows a cross-sectional view taken along A-A of FIG. 14;
FIG. 16 shows a B-B cross-sectional view of FIG. 14;
FIG. 17 is a schematic view showing the platen of FIG. 11 shown disengaged from the platen lock;
FIG. 18 shows a schematic view of the internal structure of FIG. 17 at an angle;
FIG. 19 shows a cross-sectional view taken along line A-A of FIG. 18;
fig. 20 shows a cross-sectional view in the B-B direction of fig. 18.
Wherein the above figures include the following reference numerals:
100. a positioning and holding part; 110. a groove; 120. a handle receiving cavity; (ii) a step of (iii) a step of (; 210. an extension structure; 220. a lock body assembly; 221. a lock body; 2211. a limit groove; 2212. a fan-shaped groove; 222. a second lock tongue; 2221. a through hole; 223. a radial hole; 224. a lock core; 225. a transfer block; 226. a bolt resetting piece; 227. a retainer ring; 228. a wireless chip; 229. unlocking the opening; 230. a lock body resetting piece; 300. a housing; 310. a lock body accommodating cavity; 311. a limiting piece; 312. a relief opening; 320. locking and positioning; 400. a pressing plate; 410. a platen handle; 420. a platen base; 421. a conductive jack; 430. a plug.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.
The invention provides a pressing plate locking device and a power wiring device, which aim to solve the problem that the power wiring device in the prior art has potential safety hazards of misoperation. The power wiring device is provided with a pressing plate locking device.
Example 1
As shown in fig. 1 and 2, the platen lock device includes a housing 300, an extension structure 210, and a portion of the housing 300 of the lock body assembly 220 for locking the extension structure 210 as a positioning holding portion 100 and having a handle accommodating chamber 120 for accommodating a platen handle 410, the positioning holding portion 100 being located between the platen handle 410 and a platen base 420 when the platen handle 410 is in the handle accommodating chamber 120 so that a plug 430 of the platen handle 410 is kept in a separated state from a conductive insertion hole 421 of the platen base 420; the extension structure 210 has an extended position and a retracted position relative to the housing 300 and is capable of locking the platen handle 410 with the positioning and retaining portion 100 when the platen handle 410 is in the handle receiving cavity 120; the lock body assembly 220 is disposed in the lock body accommodating cavity 310 of the housing 300, the lock body assembly 220 has a locked state and an unlocked state, when the lock body assembly 220 is in the locked state, the lock body assembly 220 locks the protruding structure 210, so that the protruding structure 210 cooperates with the positioning and holding portion 100 to place the pressing plate handle 410 in the handle accommodating cavity 120, and the protruding structure 210 is held in the protruding position; when the lock body assembly 220 is in the unlocked state, the lock body assembly 220 unlocks the protruding structure 210, the protruding structure 210 does not lock the position of the positioning and holding portion 100, and the platen handle 410 can be disengaged from the handle accommodating chamber 120.
The positioning and holding part 100 is provided, so that a stop function can be achieved between the pressing plate handle 410 and the pressing plate base 420, a separation state, namely a power-off state, can be maintained between the plug 430 of the pressing plate handle 410 and the pressing plate base 420, the extending structure 210 is locked through the lock body assembly 220, the positioning and holding part 100 can be locked with the pressing plate handle 410, forced locking of the power-off state of the pressing plate 400 is achieved, and therefore electric shock of workers caused by misoperation can be effectively avoided, and safety accidents are caused. Thus, when the positioning and holding part 100 is locked with the pressing plate handle 410 under the action of the positioning and holding part, the pressing plate handle 410 is locked in the handle accommodating cavity 120 by the extending structure 210, so that the pressing plate handle 410 can be effectively prevented from being separated from the handle accommodating cavity 120, and the use reliability of the pressing plate locking device is ensured.
As shown in fig. 3 and 4, the positioning and holding part 100 has a groove 110 for receiving the plug 430 of the platen handle 410. Due to the groove 110, when the positioning and holding part 100 is locked with the pressing plate handle 410 under the action of the groove 110, the plug 430 is prevented from being locked with the pressing plate handle 410 by the groove 110, so that the pressing plate handle 410 is prevented from being separated from the positioning and holding part 100, and the safety and reliability of the power wiring device are improved.
In this embodiment, the height of the positioning holding portion 100 is greater than the height of the plug 430 in the height direction of the plug 430. This is because, in fig. 5, if the height of the positioning holding portion 100 is insufficient, the plug 430 is inserted into the conductive insertion hole 421, thereby affecting the power-off effect.
Specifically, the extension structure 210 is slidably coupled to the housing 300 to switch the extension structure 210 between the extended position and the retracted position. The protruding structure 210 changes the positional relationship with the housing 300 in a sliding manner, thereby achieving switching between locking and unlocking.
As shown in fig. 1 to 5, the protruding structure 210 is a first locking tongue, which protrudes from the inside of the housing 300 when the lock body assembly 220 is switched from the unlock state to the lock state, and stops the platen handle 410 to prevent the platen handle 410 from slipping out of the handle accommodating chamber 120. When the first locking tongue protrudes from the housing 300, it is stopped by the pressing plate handle 410, so that the plug 430 cannot slide out of the groove 110, and the positioning and retaining portion 100 is located between the pressing plate base 420 and the housing 300 in the vertical direction, thereby realizing forced locking.
As shown in fig. 3 to 10, the lock body assembly 220 includes a lock body 221 and a second lock tongue 222, at least a portion of the lock body 221 is movably disposed in the lock body accommodating cavity 310, the lock body 221 has a radial hole 223 communicating with the lock body accommodating cavity 310, the second lock tongue 222 is slidably disposed in the radial hole 223, a sidewall of the lock body accommodating cavity 310 has a locking position 320 cooperating with the second lock tongue 222, and a portion of the second lock tongue 222 can protrude from the radial hole 223 and is engaged with the locking position 320, so that the lock body 221 can lock the protruding structure 210.
As shown in fig. 4 and 5, specifically, a locking protrusion is provided on a sidewall of the lock body accommodating cavity 310 as a locking position 320, one end of the locking protrusion, which is close to the opening of the lock body accommodating cavity 310, is provided with a guiding inclined plane, which is gradually far away from the lock body 221 along the direction close to the opening of the lock body accommodating cavity 310, and when the lock body 221 is pressed into the lock body accommodating cavity 310, the second locking tongue 222 extends out of the radial hole 223 and is locked with the locking protrusion under the action of the guiding inclined plane, thereby locking the lock body 221 in the lock body accommodating cavity 310.
The lock assembly 220 of the present invention further includes a lock body reset member 230, wherein the lock body reset member 230 provides a reset force to the lock body 221 from the locked state to the unlocked state, so that the extension structure 210 is switched from the extended position to the retracted position. When the locking operation is performed, the lock body 221 is pressed and locked into the lock body accommodating cavity 310, the extending structure 210 extends out of the casing 300 under the driving of the lock body 221 to lock the pressing plate handle 410, and at this time, the lock body resetting piece 230 is in a contracted state; when the unlocking operation is performed, the lock body 221 is unlocked, the lock body 221 is reset by the lock body resetting member 230, and at the same time, the extension structure 210 is retracted into the housing 300.
In this embodiment, the lock body resetting member 230 directly abuts between the lock body 221 and the housing 300. Optionally, the lock body return 230 is a spring.
As shown in fig. 5 and 9, the lock body 221 has a limiting groove 2211, and a limiting piece 311 is disposed on an inner wall of the lock body accommodating cavity 310, and the limiting piece 311 is accommodated in the limiting groove 2211 to control a movement range of the lock body 221. The limiting member 311 is a limiting pin, and the limiting pin is detachably disposed on the housing 300, so as to facilitate installation of the lock body 221. Of course, the limiting member 311 may also be a protruding structure disposed on the inner wall of the lock body accommodating cavity 310.
As shown in fig. 6 and 10, the lock body assembly 220 further includes a lock cylinder 224 and an adapter 225, the lock cylinder 224 being pivotally disposed within the lock body 221; the adapter block 225 is in driving connection with the lock cylinder 224, the second lock tongue 222 is provided with a through hole 2221, the adapter block 225 is arranged in the through hole 2221, when the lock cylinder 224 drives the adapter block 225 to rotate, the adapter block 225 presses the inner wall of the through hole 2221, and the second lock tongue 222 is retracted to be separated from the locking position 320.
Specifically, lock cylinder 224 pivotally disposed in lock body 221, lock body 221 has the accommodation blind hole that holds lock cylinder 224, lock cylinder 224 is provided with the adapter piece 225 near the one end of accommodation blind hole bottom, adapter piece 225 has non-circular structure, when lock cylinder 224 rotates, lock cylinder 224 drives the adapter piece 225 rotation, make adapter piece 225 extrude the inner wall of through-hole 2221, make second spring bolt 222 retract in radial hole 223, thereby break away from with locking position 320, lock body 221 no longer is locked in lock body accommodation chamber 310, thereby stretch out lock body accommodation chamber 310 under the effect of lock body return member 230, make to the unblock state switch over by the locking state. Of course, the adapter 225 may be configured as an eccentric circle, that is, the adapter 225 is circular, and the center of the circle is eccentric to the rotation center of the lock core 224.
As shown in fig. 6 and 10, the lock body 221 has a fan-shaped groove 2212 therein, and a portion of the adapter block 225 is positioned in the fan-shaped groove 2212 such that the rotation angle of the adapter block 225 is 0 to 90 degrees. Specifically, the bottom of the accommodating blind hole is provided with a fan-shaped groove 2212 with a central angle of 90 degrees, one end of the adapter block 225 is provided with a limiting convex column, and the limiting convex column is accommodated in the fan-shaped groove 2212, so that the adapter block 225 rotates in the range of 0 degrees to 90 degrees, and the problem that unlocking failure is caused by the rotating over position of the adapter block 225 is avoided.
As shown in fig. 3 to 5 and fig. 7 to 9, the lock body assembly 220 further includes a latch reset member 226, and two ends of the latch reset member 226 respectively abut against the second latch 222 and the lock body 221, so as to provide a reset force for the second latch 222 to extend out of the lock body 221. The second latch 222 is in an extended state by providing a latch return 226, wherein the latch return 226 is a spring.
As shown in fig. 3-5, the lock body assembly 220 further includes a retainer 227, the retainer 227 being disposed between the lock body 221 and the lock cylinder 224 such that the lock cylinder 224 is retained within the lock body 221.
As shown in fig. 7 to 9, the lock body assembly 220 further includes a wireless chip 228, and the wireless chip 228 is disposed at an opening of the lock body accommodating cavity 310 in a covering manner to identify the unlocking key. When unlocking, the key is inserted into the lock body through the unlocking opening 229 of the wireless chip 228, the unlocking key needs to be identified first, and the key can be turned to unlock after the identification is passed.
As shown in fig. 1 to 5, the power wiring device includes a pressing plate 400 and the above-described pressing plate locking device, the pressing plate 400 includes a pressing plate base 420 and a pressing plate handle 410, the pressing plate handle 410 has a plug 430, and the height of the positioning holding portion 100 is greater than the height of the plug 430 in the height direction of the plug 430. By setting the height of the positioning and holding part 100 to be greater than the height of the plug 430, it is ensured that the plug 430 can be completely separated from the base when the pressing plate 400 is locked, which is advantageous for improving the safety and reliability of the power wiring device.
Unlocking principle:
the unlocking key is inserted, the unlocking key reads RFID in the wireless code chip 228 and matches with prestored information in the computer key, after the information is successfully matched and the mechanical tooth shape is successfully matched, the unlocking key is rotated, the lock cylinder 224 drives the rotating block 225 to rotate, and then the non-circular section of the rotating block 225 is driven to press the inner wall of the through hole 2221 of the second lock tongue 222, the second lock tongue 222 is pushed to move from the extending position to the retracting position against the elastic force of the lock tongue resetting piece 226 until the second lock tongue 222 is completely separated from the locking position 320, the lock body 221 moves towards the direction far away from the positioning retaining portion 100 under the elastic force of the lock body resetting piece 230, the limiting piece 311 moves from the upper end face to the lower end face of the limiting groove 2211, the extending structure 210 is completely retracted into the lock body accommodating cavity 310 of the shell 300 under the driving of the lock body 221, the extending structure 210 moves from the locking position to the unlocking position, at this time, the pressing plate locking device can be separated from the pressing plate 400 from the lateral opening of the shell 300, the positioning retaining portion 100 is not clamped between the pressing plate handle 410 and the pressing plate base 420, and the pressing plate 400 can be connected.
Locking principle:
the platen handle 410 is pulled out from the platen base 420, the handle accommodating chamber 120 of the platen lock device is locked into the platen handle 410 from the side opening direction, the positioning and holding portion 100 is locked between the platen handle 410 and the platen base 420, and the plug 430 is locked in the groove 110. At this time, the lock body 221 is pressed, the lock body 221 overcomes the elastic force of the lock body resetting piece 230, moves along the direction approaching to the positioning and holding portion 100, the second lock tongue 222 overcomes the elastic force of the lock tongue resetting piece 226 under the action of tangential component force, and retracts into the radial hole 223, when the end face of the lock body 221 abuts against the bottom of the lock body accommodating cavity 310, the second lock tongue 222 extends outwards from the radial hole 223 under the action of the lock tongue resetting piece 226 to be in locking fit with the locking position 320, at this time, the positioning and holding portion 100 is clamped between the pressing plate handle 410 and the pressing plate base 420, the plug 430 is clamped in the groove 110, and the pressing plate locking device is completely locked on the pressing plate, so that the forced locking of the pressing plate 400 is realized.
Example two
The difference from the first embodiment is that the construction of the platen lock is different from that of the first embodiment, but the principle of locking is similar.
Specifically, as shown in fig. 11 to 20, the protruding structure 210 is a locking plate, and a first end of the locking plate protrudes into the housing 300 through the relief opening 312 of the housing 300, and a second end of the locking plate is always located outside the housing 300 and is capable of being changed in position with respect to the positioning and holding portion 100, and when the lock body assembly 220 is in the locked state, the first end of the protruding structure 210 is locked with the housing 300, and a second end of the protruding structure 210 is crimped on the positioning and holding portion 100 and the platen handle 410 to prevent the platen handle 410 from slipping out of the handle accommodating chamber 120.
When a locking plate is required, the platen handle 410 is vertically offset from the platen base 420, and the lateral direction of the positioning and retaining portion 100 acts to disengage the two stops. The protruding structure 210 still locks the positioning and retaining portion 100 with the platen handle 410. At this time, it is also possible to pull the pressing plate handle 410 in the vertical direction, but the plug 430 cannot be inserted into the conductive insertion hole 421 due to the stopper of the positioning and holding portion 100, thereby avoiding accidental connection.
In this embodiment, the housing 300 is of a split construction, including a lower portion with the positioning and retaining portion 100 and an upper portion housing the extension structure 210 and the lock body assembly 220, and when the above constructed platen lock is used, the upper portion is first snapped onto the lower portion, then the lock body resetting member 230 is placed in the lower portion, then the first end of the extension structure 210 is extended into the relief opening 312 of the housing 300, and then the extension structure 210 is locked or unlocked by the lock body assembly 220 in the housing 300.
In this embodiment, the lock body resetting member 230 abuts between the lock body 221 and the housing 300 through the protruding structure 210. The lock body return 230 is located below the first end of the extension structure 210.
As shown in fig. 13, the second latch 222 includes two sub-components that can be moved toward and away from each other, and when the two sub-components are moved away from each other, a portion of the sub-components can protrude through the radial hole 223 and engage the locking position 320 to lock the lock body 221. The locking principle is similar to that of the first embodiment, and will not be described here again. Similarly, the latch return members 226 are also two and are arranged in one-to-one correspondence with the two sub-components.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
1. the problem that a pressing plate locking device in the prior art cannot safely and reliably isolate the pressing plate is solved;
2. the structure is small and exquisite, the portable, the operation is convenient, easy to assemble and disassemble, and the portable electronic device is not required to be installed in advance and is convenient to use and install;
3. the wireless code chip can identify the lock core of each pressing plate locking device, so that accidents caused by confusion of operation during locking of multiple rows of pressing plates are avoided.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. A platen lock comprising:
a housing (300), a portion of the housing (300) serving as a positioning holding portion (100) and having a handle accommodating chamber (120) for accommodating a platen handle (410), the positioning holding portion (100) being located between the platen handle (410) and a platen base (420) when the platen handle (410) is in the handle accommodating chamber (120) so as to hold a plug (430) of the platen handle (410) in a separated state from a conductive insertion hole (421) of the platen base (420);
-an extension structure (210), the extension structure (210) having an extended position and a retracted position relative to the housing (300) and being capable of locking the platen handle (410) with the positioning and retaining portion (100) when the platen handle (410) is in the handle receiving cavity (120);
a lock body assembly (220) for locking the protruding structure (210), the lock body assembly (220) being disposed within a lock body receiving cavity (310) of the housing (300), the lock body assembly (220) having a locked state and an unlocked state, the lock body assembly (220) locking the protruding structure (210) when the lock body assembly (220) is in the locked state such that the protruding structure (210) cooperates with the positioning retaining portion (100) to retain the platen handle (410) in the handle receiving cavity (120), the protruding structure (210) being retained in the protruding position; when the lock body assembly (220) is in the unlocking state, the lock body assembly (220) unlocks the protruding structure (210), the protruding structure (210) does not lock the position of the positioning and holding part (100), and the pressing plate handle (410) can be separated from the handle accommodating cavity (120).
2. The platen lock device of claim 1, wherein the positioning and retaining portion (100) has a recess (110) that receives a plug (430) of the platen handle (410).
3. The platen lock of claim 1, wherein the extension structure (210) is slidably coupled to the housing (300) to switch the extension structure (210) between the extended position and the retracted position.
4. A platen lock assembly according to claim 3, wherein the projection arrangement (210) is a first latch tongue that projects from within the housing (300) when the lock body assembly (220) is switched from the unlocked state to the locked state, and stops the platen handle (410) to prevent the platen handle (410) from slipping out of the handle receiving cavity (120).
5. A platen lock assembly according to claim 3, wherein the projecting structure (210) is a locking plate, and a first end of the locking plate projects into the housing (300) through a relief opening (312) of the housing (300), and a second end of the locking plate is always located outside the housing (300) and is changeable in position relative to the positioning retaining portion (100), the first end of the projecting structure (210) being locked with the housing (300) when the lock body assembly (220) is in the locked state, the second end of the projecting structure (210) being press-fit over the positioning retaining portion (100) and the platen handle (410) to prevent the platen handle (410) from slipping out of the handle receiving cavity (120).
6. The platen lock of claim 4 or 5, wherein the lock body assembly (220) includes:
the lock comprises a lock body (221), wherein at least one part of the lock body (221) is movably arranged in the lock body accommodating cavity (310), and the lock body (221) is provided with a radial hole (223) communicated with the lock body accommodating cavity (310);
the second lock tongue (222) is slidably arranged in the radial hole (223), a locking position (320) matched with the second lock tongue (222) is formed in the side wall of the lock body accommodating cavity (310), and a part of the second lock tongue (222) can extend out of the radial hole (223) and is clamped with the locking position (320), so that the lock body (221) can lock the extending structure (210).
7. The pressure plate locking device according to claim 6, wherein the lock body (221) has a limit groove (2211), a limit piece (311) is disposed on an inner wall of the lock body accommodating cavity (310), and the limit piece (311) is accommodated in the limit groove (2211) to control a movement range of the lock body (221).
8. The platen lock assembly of claim 6, wherein the lock body assembly (220) further includes a lock body reset member (230), the lock body reset member (230) providing a reset force to the lock body (221) to move from the locked state to the unlocked state to unlock the lock body (221) from the extended structure (210) to switch the extended structure (210) from the extended position to the retracted position.
9. The platen lock of claim 8, wherein,
the lock body resetting piece (230) is directly abutted between the lock body (221) and the shell (300); or the lock body resetting piece (230) is abutted between the lock body (221) and the shell (300) through the extending structure (210).
10. The pressure plate latch of claim 9 wherein the second latch tongue (222) includes two sub-components that are movable toward and away from each other, a portion of the sub-components being extendable from the radial bore (223) and snap-fit with the locking bit (320) to lock the lock body (221) when the two sub-components are moved away from each other.
11. The platen lock of claim 9, wherein the lock body assembly (220) further comprises:
a lock cylinder (224), the lock cylinder (224) being pivotally arranged within the lock body (221);
the switching piece (225), switching piece (225) with lock core (224) drive connection, second spring bolt (222) have through-hole (2221), switching piece (225) set up in through-hole (2221), when lock core (224) drive switching piece (225) rotate, switching piece (225) extrusion inner wall of through-hole (2221), second spring bolt (222) withdraw in order to with locking position (320) break away from.
12. The pressure plate locking device of claim 11, wherein the lock body (221) has a scalloped groove (2212) therein, and a portion of the adapter block (225) is positioned in the scalloped groove (2212) such that the angle of rotation of the adapter block (225) is 0 degrees to 90 degrees.
13. The pressure plate locking device of claim 9, wherein the lock body assembly (220) further comprises a lock tongue reset member (226), and two ends of the lock tongue reset member (226) are respectively abutted against the second lock tongue (222) and the lock body (221) to provide a reset force for the second lock tongue (222) to extend out of the lock body (221).
14. The pressure plate latch of claim 11 wherein said lock body assembly (220) further includes a retainer ring (227), said retainer ring (227) being disposed between said lock body (221) and said lock cylinder (224) such that said lock cylinder (224) is retained within said lock body (221).
15. The platen lock assembly of any one of claims 1-5, wherein the lock body assembly (220) further includes a wireless chip (228), the wireless chip (228) covering an opening of the lock body receiving cavity (310) to identify an unlocking key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385099.6A CN109728506B (en) | 2018-11-20 | 2018-11-20 | Pressing plate locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385099.6A CN109728506B (en) | 2018-11-20 | 2018-11-20 | Pressing plate locking device |
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| CN109728506A CN109728506A (en) | 2019-05-07 |
| CN109728506B true CN109728506B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111524741B (en) * | 2020-05-08 | 2022-06-28 | 珠海优特电力科技股份有限公司 | Knife switch locking device |
| CN116435952A (en) * | 2023-04-25 | 2023-07-14 | 国网山东省电力公司济南市历城区供电公司 | Error-proof device and method for hard pressing plate |
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| CN109728506A (en) | 2019-05-07 |
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