CN110131290B - Screw locking lockset - Google Patents
Screw locking lockset Download PDFInfo
- Publication number
- CN110131290B CN110131290B CN201910529576.XA CN201910529576A CN110131290B CN 110131290 B CN110131290 B CN 110131290B CN 201910529576 A CN201910529576 A CN 201910529576A CN 110131290 B CN110131290 B CN 110131290B
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- Prior art keywords
- locking
- lock
- screw
- lock body
- tongue
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- 238000003825 pressing Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
Abstract
The invention provides a screw locking lockset which can be sleeved and fixed on a screw, comprising: a base having a first through hole through which the screw passes; the lock body is rotatably arranged on the base and is provided with a cavity capable of accommodating the head of the screw; the locking assembly is arranged on the lock body and is provided with an unlocking position and a locking position; when the locking assembly is in a locking position, the locking assembly locks the lock body to the base, and the cavity of the lock body accommodates and shields the head of the screw; when the locking assembly is in the unlocking position, the lock body can rotate relative to the base, and the cavity of the lock body is separated from the head of the screw, so that the head of the screw has an operation space. The unlocking and locking of the screw are realized by adopting the cavity of the lock body, the screw with various specifications can be applied, the universal degree is improved, the production cost is reduced, and meanwhile, the lock body is always connected with the base, so that the situation that the lock body is lost after unlocking is avoided.
Description
Technical Field
The invention relates to the technical field of safety and error prevention, in particular to a screw locking lockset.
Background
In general, equipment such as various cabinets, boxes and the like used in industrial production often adopts screws to fasten openable components such as doors, covers and the like. When operating these devices in actual production, the devices are usually operated according to a specified process to ensure personal and property safety, and the operation control is performed in a mode of locking the above mentioned screws for fastening various openable components.
In the current safety error-proof system, locking control is generally carried out by adopting a mode of matching a specially-made screw with a protective cover with a padlock for locking the screw. The mode is simple in structure, relatively low in cost, relatively complex in operation, low in universality and easy to lose, and screws to be locked are required to be customized according to field specifications, the system cost is increased, and meanwhile, the padlock is placed at will after being taken down.
Disclosure of Invention
Based on this, it is necessary to provide a screw locking tool to lock that has a wide application range and avoids losing, aiming at the problems that the general degree is low and the padlock is easy to lose caused by the need of adopting special screws for locking the screw at present.
The above purpose is achieved by the following technical scheme:
a screw locking lockset capable of being sleeved and fixed on a screw, comprising:
a base having a first through hole through which a screw passes;
the lock body is rotatably arranged on the base and is provided with a cavity capable of accommodating the head of the screw; and
the locking assembly is arranged on the lock body and is provided with an unlocking position and a locking position; when the locking assembly is in a locking position, the locking assembly locks the lock body to the base, and the cavity of the lock body accommodates and shields the head of the screw; when the locking assembly is in the unlocking position, the lock body can rotate relative to the base, and the cavity of the lock body is separated from the head of the screw, so that the head of the screw has an operation space.
In one embodiment, the locking assembly comprises a lock tongue and a lock core, the lock tongue is movably arranged on the lock body, the lock core is rotatably arranged on the lock body, the lock core can rotate to drive the lock tongue to move, the lock tongue can extend into or move out of the base, and the lock tongue is positioned at a locking position or an unlocking position.
In one embodiment, the locking assembly further comprises a rotating shaft, the rotating shaft is arranged on the lock cylinder and located on one side of the lock tongue, and the lock cylinder can drive the lock tongue to move through the rotating shaft.
In one embodiment, the base comprises a mounting seat and a locking column arranged on the mounting seat, wherein the mounting seat is suitable for being mounted on a box body base, and the locking column is provided with a locking groove;
the lock tongue can move in or out of the locking groove when rotating, so that locking or unlocking of the lock tongue is realized.
In one embodiment, the mounting seat is provided with the first through hole for the screw to pass through, and the locking column is columnar and is vertically fixed at the edge position of the mounting seat.
In one embodiment, the locking post is integrally formed with the mounting block.
In one embodiment, the lock tongue is provided with a clamping portion, and the clamping portion can be driven to move in or out of the locking groove when the lock tongue rotates.
In one embodiment, the locking assembly further comprises a locking bolt spring, the locking bolt spring is abutted between the locking bolt and the lock body, and the locking bolt spring keeps the locking bolt in a locking position.
In one embodiment, the lock tongue spring is located at a side of the lock tongue away from the clamping portion.
In one embodiment, the locking assembly further comprises a press block, the press block is fixed to the lock body, and the lock tongue is rotatably mounted on the press block;
the pressing block is provided with a boss, and the boss is used for being abutted with the lock tongue so as to limit the rotation angle of the lock tongue.
In one embodiment, the pressing block further has an extension portion, one end of the locking bolt is rotatably mounted on the extension portion, and the other end of the locking bolt can rotate around the extension portion, so that the clamping portion moves into or moves out of the locking groove.
In one embodiment, the lock tongue further has a driving portion, and the rotating shaft is abutted with the driving portion in an intermittent manner, so that the lock tongue drives the clamping portion to move into or out of the locking groove.
In one embodiment, the rotating shaft is a cam or a D-shaped block, or the outer contour of the rotating shaft is formed by enclosing a major arc and a minor arc or a curve and a straight line.
In one embodiment, the lock tongue is provided with a guide inclined plane, and the guide inclined plane is arranged on the clamping part;
when the screw locking lockset is locked, the guide inclined plane is used for overcoming the elastic force of the spring bolt spring so as to guide the clamping part to enter the locking groove.
In one embodiment, the screw locking lockset further comprises a chip, wherein the chip is sleeved on the lock cylinder and is suitable for storing the identity information of the screw locking lockset.
After the technical scheme is adopted, the invention has at least the following technical effects:
when the screw locking lockset is locked, the locking assembly is positioned at the locking position, the locking assembly locks the lock body on the base, the lock body is fixed relative to the base and can not rotate, at the moment, the head of the screw is positioned in the cavity of the lock body, the head of the screw is shielded by the lock body, and the screw can not be operated; when the lock is unlocked, the locking assembly is in an unlocking position, the locking assembly does not lock the lock body any more, the lock body can rotate relative to the base, the cavity of the lock body is separated from the head of the screw, at the moment, the head of the screw is not shielded any more, and the screw can be operated. The cavity of the lock body is adopted to realize unlocking and locking of the screw, the lock is applicable to screws with various specifications, and the lock body is always connected with the base when being unlocked or locked, so that the problems that the general degree is low and the padlock is easy to lose due to the fact that the special screw is needed to be adopted for locking the screw at present are effectively solved, the special screw is not needed, the production cost is reduced, the installation period is shortened, and the situation that the lock body is lost after unlocking is avoided. Meanwhile, the screw locking lockset is simple to assemble and use, can realize rapid unlocking operation, and increases the universality and usability of the screw locking lockset.
Drawings
FIG. 1 is an exploded view of a screw lock according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the screw lock of FIG. 1 in a locked position;
FIG. 3 is a cross-sectional view at A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the screw lock of FIG. 1 in an open position;
FIG. 5 is a cross-sectional view of FIG. 1 at B-B;
FIG. 6 is a perspective view of the screw lock of FIG. 1 when unlocked;
fig. 7 is a cross-sectional view of the screw lock of fig. 1 locking other gauge screws.
Wherein:
100-lock body;
200-base;
210-a first via;
220-locking grooves;
300-pin;
400-a latch assembly;
410-briquetting; 411-extensions; 412-a boss;
420-a lock tongue; 421-clamping part; 422-guiding ramp; 423-a driving section;
430-a tongue spring;
440-rotating shaft;
450-lock core;
500-chips;
600-adjusting washers; 610-a second via;
700-jump ring;
800-screws;
810-head;
820-stem.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the screw locking lock of the present invention will be described in further detail below by way of examples with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Referring to fig. 1, 2, 4 and 6, the present invention provides a screw lock. The screw locking lockset is applied to the field of industrial error prevention, in particular to equipment such as various cabinets, boxes and the like used in industrial production, so that openable components such as doors, covers and the like can be reliably unlocked and locked by fastening the openable components by using screws 800, and the operation safety is ensured. The screw locking lockset disclosed by the invention can be suitable for locking and unlocking screws 800 with various specifications, special screws 800 are not required to be used, the production cost is reduced, and the installation period is shortened. Meanwhile, the screw locking lockset is simple to assemble and use, can realize rapid unlocking operation, and increases the universality and usability of the screw locking lockset.
In one embodiment, the screw lock includes a base 200, a lock body 100, and a lock assembly 400. The base 200 has a first through hole 210 through which the screw 800 passes. The lock body 100 is rotatably disposed on the base 200, and the lock body 100 has a cavity for receiving the head 810 of the screw 800. The locking assembly 400 is arranged on the lock body 100, and the locking assembly 400 has an unlocking position and a locking position; when the latch assembly 400 is in the latched position, the latch assembly 400 locks the lock body 100 to the base 200, and the cavity of the lock body 100 receives and shields the head 810 of the screw 800; when the latch assembly 400 is in the unlocked position, the lock body 100 can rotate relative to the base 200, and the cavity of the lock body 100 is disengaged from the head 810 of the screw 800, so that the head of the screw 810 has an operating space.
The base 200 is mounted on a box base of the device, and the screw 800 for locking the openable component of the device passes through the first through hole 210 of the base 200 to be fixed on the box base, so that the openable component can be fastened. That is, the base 200 is disposed between the screw 800 and the base of the case. It should be noted that, the base 200 may be directly located on the box base, without requiring fixed installation, and when the screw 800 is fastened on the box base, the reliable fixing of the base 200 to the box base may be achieved. Of course, in other embodiments of the present invention, the base 200 may be fixed to the base of the case in other manners.
The lock body 100 is rotatably mounted on the base 200, the cavity of the lock body 100 can be used for accommodating the head 810 of the screw 800, the locking assembly 400 is mounted in the lock body 100, and the locking assembly 400 can be matched with the base 200 to lock and unlock the lock body 100. In addition, the lock body 100 can accommodate the locking assembly 400, so that the locking assembly 400 is prevented from being exposed, the reliability of the screw locking lockset is ensured, and the screw locking lockset is prevented from being pried open. It can be appreciated that the screw 800 includes a head 810 and a stem 820 connected to the head 810, the stem 820 of the screw 800 is mounted on the box base through the first through hole 210 of the base 200, and the head 810 of the screw 800 is clamped on the base 200 and can be shielded by the lock body 100.
When the screw locking lockset is locked, the locking assembly 400 moves to the locking position, the locking assembly 400 locks the lock body 100 on the base 200, the lock body 100 is fixed relative to the base 200 and cannot rotate, at this time, the head 810 of the screw 800 is located in the cavity of the lock body 100, the head 810 of the screw 800 is shielded by the lock body 100, i.e. the head 810 of the screw 800 is not exposed, and an operator cannot operate the screw 800. When the screw locking lockset is unlocked, the locking assembly 400 moves to the unlocking position and is separated from the base 200, the locking assembly 400 does not lock the lock body 100 any more, and the lock body 100 can rotate relative to the base 200, so that the cavity of the lock body 100 is separated from the head 810 of the screw 800, at this time, the head 810 of the screw 800 is not shielded, i.e. the head 810 of the screw 800 is exposed, and an operator can operate the screw 800.
The lock body 100 is connected to the base 200 in both the locked and unlocked states. Thus, after the locking assembly 400 is unlocked, the lock body 100 is not lost due to the restriction of the base 200. Furthermore, the screw locking device locks the head 810 of the screw 800 through the cavity of the lock body 100, and it should be noted that the cavity of the lock body 100 may accommodate the screw 800 with any shape and size, as shown in fig. 7, and the cavity of the lock body 100 may accommodate the screw 800 with a specification different from that of fig. 1. That is, the cavity of the lock body 100 can lock screws 800 with various specifications, so that the problems of low general degree and easy padlock loss caused by the adoption of special screws in the prior screw locking process are effectively solved, the special screws 800 are not required, the production cost is reduced, the installation period is shortened, and the situation that the lock body 100 is lost after unlocking is avoided. Meanwhile, the screw locking lockset provided by the invention has the advantages of simple structure, easiness in assembly and use, and capability of realizing rapid unlocking operation of the screw 800, and the universality and usability of the screw locking lockset in use are improved.
In one embodiment, the screw lock further includes an adjustment washer 600 and a snap spring 700. The adjustment washer 600 has a second through hole 610, and a portion of the adjustment washer 600 is installed in the first through hole 210 and another portion of the adjustment washer 600 is located above the base 200, as shown in fig. 2. And, the second through hole 610 of the adjustment washer 600 is disposed opposite to the first through hole 210 for the shaft portion 820 of the screw 800 to pass through. The clamp spring 700 is clamped between the adjusting washer 600 and the base 200, specifically, the clamp spring 700 is disposed in the first through hole 210 and abuts against the inner wall of the first through hole 210 and the outer wall of the adjusting washer 600 located in the first through hole 210, so as to axially limit the adjusting washer 600.
It will be appreciated that the snap spring 700 only axially limits the adjustment washer 600 and does not limit the rotational displacement of the adjustment washer 600. Optionally, the inner wall of the second through hole 610 further has a first clamping groove, and the outer wall of the adjusting washer 600 has a second clamping groove. The outer ring of the clamp spring 700 is arranged in the first clamping groove, the inner ring of the clamp spring 700 is arranged in the second clamp spring 700, and the position of the adjusting washer 600 is limited through the clamp spring 300, so that the reliable limiting of the adjusting washer 600 is realized. In an embodiment of the present invention, the diameters of the first through hole 210 and the second through hole 610 are larger than the outer diameter of the shaft portion 820 of the screw 800 and smaller than the diameter of the head portion 810 of the screw 800, as shown in fig. 2. Of course, in other embodiments of the present invention, the diameter of the head 810 of the screw 800 may be smaller than the diameter of the first through hole 610, and in this case, the reliable installation of the screw 800 may be ensured by adding a baffle, as shown in fig. 7.
Referring to fig. 1 to 6, in an embodiment, the locking assembly 400 includes a lock tongue 420 and a lock cylinder 450, the lock tongue 420 is movably disposed in the lock body 100, the lock cylinder 450 is rotatably disposed in the lock body 100, and rotation of the lock cylinder 450 can drive the lock tongue 420 to move, so that the lock tongue 420 extends into or moves out of the base 200, and the lock tongue 420 is in a locked position or an unlocked position. The locking tongue 420 is the main component of the locking assembly 400 for locking and unlocking, and the lock cylinder 450 has a locked position and an unlocked position. Alternatively, the locking bolt 420 may be rotated or otherwise moved to effect an unlocking or locking operation. Illustratively, the locking bolt 420 is rotatably disposed in the lock body 100. The lock cylinder 450 rotates to drive the lock tongue 420 to move synchronously. When the bolt 420 extends into the base 200, the bolt 420 is at a locking position, and the lock body 100 is locked to the base 200; when the lock tongue 420 moves out of the base 200, the lock tongue 420 is in the unlock position, and the lock body 100 is unlocked and can rotate relative to the base 200. Alternatively, the lock cylinder 450 may be a mechanical cylinder lock cylinder or an electronic lock cylinder, but may also be other types of lock cylinders.
It will be appreciated that the lock cylinder 450 may be mated with a conventional unlocking key or with a computer key, as will be described in more detail below. After the key is inserted into the lock cylinder 450, turning the key may rotate the lock cylinder 450, such that the lock cylinder 450 may be switched between the locked position and the unlocked position. And, when the key drives the lock cylinder 450 to move from the locking position to the unlocking position, the lock cylinder 450 can drive the lock tongue 420 to synchronously rotate while rotating, so that the lock tongue 420 is separated from the base 200, unlocking of the lock body 100 is realized, the lock body 100 can rotate to the unlocking position, at this time, the cavity of the lock body 100 can be separated from the head 810 of the screw 800, and the screw 800 can be operated. In this state, turning the key moves the lock cylinder 450 from the unlocked position to the locked position, causing the various components within the lock body 100 to return to the position in which they were in the locked state. When the screw locking lockset is locked, the lock body 100 is rotated to the locking position, the lock tongue 420 can be clamped on the base 200, so that the lock body 100 is locked on the base 200, at this time, the cavity of the lock body 100 accommodates and shields the head 810 of the screw 800, and the screw 800 cannot be operated.
In an embodiment, the locking assembly 400 further includes a rotating shaft 440, the rotating shaft 440 is disposed on the lock cylinder 450 and located on one side of the lock tongue 420, and the lock cylinder 450 can drive the lock tongue 420 to move through the rotating shaft 440. Specifically, when the lock cylinder 450 rotates, the rotation shaft 440 drives the lock tongue 420 to move synchronously, so that the lock tongue 420 is locked or unlocked. The specific structure of the rotary shaft 440 is described in detail below.
In one embodiment, the base 200 includes a mounting base adapted to be mounted to a base of the case, and a locking post disposed on the mounting base. The mounting block is used to mount the screw 800 and the locking post is used to rotatably mount the lock body 100. When the screw lock is in the locked position, the lock body 100 is positioned above the mounting base, and as shown in fig. 2, the lock body 100 is in the locked position. When the screw lock is in the unlocked position, the lock body 100 may be rotated relative to the locking post to remove the lock body 100 from above the mounting block, at which point the lock body 100 is in the open position, as shown in fig. 6. That is, counterclockwise rotation of the lock body 100 relative to the locking post in the direction shown in fig. 2 may place the lock body 100 in an open or unlocked position, effecting the unlocking operation of the screw 800. In this way, the interference between the inner wall of the cavity of the lock body 100 and the head 810 of the screw 800 can be avoided, so that the locking and unlocking operations of the screw 800 are facilitated.
Referring to fig. 1 to 6, in one embodiment, the mounting base has a first through hole 210 through which a screw 800 passes, and the locking post is cylindrical. The mount pad is hollow annular structure, and hollow part is first through-hole 210 promptly, and the lock post is installed in the marginal position of mount pad. Optionally, the locking post is disposed perpendicular to the mounting base. That is, the base 200 is provided in an L-shape, and the lock body 100 is rotatable around a vertical portion of the L-shape. Still alternatively, the lock further includes a pin 300, where the pin 300 penetrates through the locking column at the side of the mounting base and protrudes from both sides of the locking column, and the pin 300 is disposed adjacent to the mounting base, and the lock body 100 is mounted on the pin 300 at both sides of the locking column and can rotate around the pin 300. Further, the locking post and the mounting base are of an integral structure. Thus, the reliability of the structure of the base 200 can be ensured, and the locking assembly 400 is prevented from being separated from the mounting seat after unlocking, so that the loss condition is avoided.
In one embodiment, the locking post has a locking slot 220. The locking bolt 420 can move into or out of the locking groove 220 when rotating, so as to lock or unlock the locking bolt 420. The locking groove 220 is an open groove, as shown in fig. 1, the locking groove 220 has an upper inner wall, a lower inner wall, and a side wall connecting the upper inner wall and the lower inner wall. The locking groove 220 can accommodate the locking bolt 420, and the locking bolt 420 is locked in the locking groove 220 by limiting the locking bolt 420 through the inner wall of the locking groove 220, so that the lock body 100 can be reliably locked and cannot rotate relative to the base 200, and reliable locking of the head 810 of the screw 800 is realized.
In an embodiment, the lock tongue 420 has a locking portion 421, and when the lock tongue 420 rotates, the locking portion 421 is driven to move into or out of the locking slot 220. The locking tongue 420 cooperates with the locking groove 220 of the base 200 through the locking portion 421 to lock and unlock the lock body 100. Specifically, when the lock cylinder 450 rotates, the rotation shaft 440 drives the lock tongue 420 to rotate synchronously, and the lock tongue 420 rotates and drives the clamping portion 421 to move. When the locking portion 421 moves into the locking groove 220, the locking tongue 420 is locked in the locking groove 220, so that the lock body 100 is reliably locked, the lock body 100 cannot rotate relative to the base 200, and at this time, the cavity of the lock body 100 accommodates and shields the head 810 of the screw 800; when the locking portion 421 moves out of the locking groove 220, the locking tongue 420 is unlocked, and the lock body 100 can rotate relative to the base 200, and at this time, the cavity of the lock body 100 is separated from the head 810 of the screw 800.
In one embodiment, the locking assembly 400 further includes a locking tongue spring 430, wherein the locking tongue spring 430 is abutted between the locking tongue 420 and the lock body 100, and the locking tongue spring 430 keeps the locking tongue 420 in the locking position. When the key drives the lock cylinder 450 to move from the locking position to the unlocking position, the lock cylinder 450 drives the lock tongue 420 to rotate through the rotating shaft 440, and at this time, the lock tongue 420 can overcome the elastic force of the lock tongue spring 430, so that the clamping portion 421 of the lock tongue 420 moves out of the locking groove 220 of the base 200. When the key drives the lock cylinder 450 to move from the unlock position to the lock position, the rotation shaft 440 of the lock cylinder 450 is separated from the lock tongue 420, the lock tongue 420 is reset under the elastic force of the lock tongue spring 430, and at this time, the clamping portion 421 of the lock tongue 420 moves into the locking groove 220 of the base 200.
In one embodiment, the latch spring 430 is located on a side of the latch 420 facing away from the engaging portion 421. At this time, the tongue spring 430 is a compression spring. When the key drives the lock cylinder 450 to move from the locking position to the unlocking position, the lock cylinder 450 drives the lock tongue 420 to rotate through the rotating shaft 440, and the lock tongue 420 compresses the lock tongue spring 430, so that the clamping portion 421 moves out of the locking groove 220. When the key drives the lock cylinder 450 to move from the unlocking position to the locking position, the rotating shaft 440 of the lock cylinder 450 is separated from the lock tongue 420, the lock tongue 420 is reset under the action of the stretching force of the spring of the lock cylinder 450, and at this time, the clamping part 421 can enter the locking groove 220.
Of course, in other embodiments of the present invention, the tongue spring 430 may be located at the side of the tongue 420 having the locking portion 421 and contact with the lock body 100. At this time, the tongue spring 430 is a tension spring. It can be understood that the working principle of the spring bolt 430 in this embodiment is substantially the same as that of the spring bolt 430 in the above embodiment, and is not described herein.
Referring to fig. 1, when the screw lock is unlocked, a key is inserted into the lock cylinder 450 and drives the lock cylinder 450 to rotate, so that the lock cylinder 450 moves from the locked position to the unlocked position. In addition, when the lock cylinder 450 rotates, the lock tongue 420 is driven to synchronously rotate through the rotating shaft 440, and the lock tongue 420 overcomes the elastic force of the lock tongue spring 430 to enable the clamping portion 421 to be separated from the locking groove 220 of the base 200, so that the lock body 100 is unlocked. Then, the lock body 100 is rotated to the open position, the cavity of the lock body 100 is separated from the head 810 of the screw 800, the head 810 of the screw 800 is not shielded, at this time, a sufficient operation space is reserved above the head 810 of the screw 800, and the screw locking lockset is in the unlocked state, as shown in fig. 4 to 6. The operator may use a screwdriver, wrench, or the like to perform conventional operations on the screw 800.
In this state, turning the key drives the lock cylinder 450 and the rotation shaft 440 to rotate reversely, so that the lock cylinder 450 moves from the unlock position to the lock position, and at the same time, the lock tongue 420 is reset under the action of the lock tongue spring 430, so that the positions of the parts in the lock body 100 are restored to the state where the lock position is located. Therefore, the locking operation of the screw locking lockset is simple and convenient, the locking operation can be completed without a key, and the specific operation is as follows.
Referring to fig. 1, when the screw locking lockset is locked, the lock body 100 is firstly reversely rotated relative to the base 200, and the lock body is moved from the open position to the locking position, so that the cavity of the lock body 100 is covered on the head 810 of the screw 800. During the reverse rotation of the lock body 100, the clamping portion 421 will abut against the outer wall of the locking slot 220, and gradually overcome the elastic force of the locking spring 430, so that the clamping portion 421 moves towards the side of the locking spring 430. When the latch 420 completely enters the locking groove 220, the locking portion 421 is locked in the locking groove 220 of the base 200 under the elastic force of the latch spring 430, so as to limit the rotation of the lock body 100 relative to the base 200. At this time, the lock body 100 receives and shields the head 810 of the screw 800, and the screw locking lock is in a locked state, as shown in fig. 2 and 3. The operator cannot use the tool to unscrew the screw 800.
Referring to fig. 1 to 6, in an embodiment, the latch assembly 400 further includes a pressing block 410, the pressing block 410 is fixed to the lock body 100, and the locking tongue 420 is rotatably installed to the pressing block 410. Illustratively, the press block 410 is fixed to a middle region of the lock body 100, as shown in fig. 2, the press block 410 and the lower lock body 100 enclose a cavity for accommodating the head 810 of the screw 800, and the press block 410 and the upper lock body 100 enclose a locking cavity for carrying the lock cylinder 450, the lock tongue 420, and the like. The latch 420 is rotatably installed on the upper surface of the pressing block 410. The lock cylinder 450 is located above the locking tongue 420, and the rotation shaft 440 is located at a side of the locking tongue 420 facing the locking groove 220. Thus, when the lock cylinder 450 drives the lock tongue 420 to rotate through the rotation shaft 440, the lock tongue 420 can be jacked up to move the lock tongue 420 towards a direction away from the locking groove 220, so that the clamping portion 421 moves out of the locking groove 220.
In an embodiment, the pressing block 410 has a boss 412, and the boss 412 is used to abut against the locking bolt 420 to limit the rotation angle of the locking bolt 420. It will be appreciated that when the key is turned to move the lock cylinder 450 from the unlocked position to the locked position after the lock body 100 is in the open position, the tongue 420 moves toward the direction in which the locking groove 220 is located under the action of the tongue spring 430. Since the lock body 100 is in the open position, if the bolt 420 moves all the time under the action of the bolt spring 430, the movement stroke may be exceeded, which affects the resetting of the lock body 100. Therefore, the present invention provides the boss 412 on the pressing block 410 to limit the rotation angle of the locking bolt 420. Specifically, in the above movement process, the lock tongue 420 is reset under the action of the lock tongue spring 430, and when the lock tongue 420 rotates by a certain angle, one side of the lock tongue 420 facing the locking groove 220 will abut against the boss 412, so as to limit the lock tongue 420 to move continuously in the direction of the locking groove 220, and avoid the over-travel operation of the lock tongue 420.
In an embodiment, the pressing block 410 further has a protruding portion 411, one end of the locking bolt 420 is rotatably mounted on the protruding portion 411, and the other end of the locking bolt 420 can rotate around the protruding portion 411 to enable the clamping portion 421 to move into or out of the locking slot 220. The locking portion 421 is located at the other end of the locking bolt 420, and the locking bolt 420 can move into or out of the locking slot 220 when rotating around the protruding portion 411.
In an embodiment, the lock tongue 420 further has a driving portion 423, and the rotating shaft 440 is intermittently abutted against the driving portion 423, so that the lock tongue 420 drives the locking portion 421 to move into or out of the locking slot 220. The driving part 423 is a protruding part on the latch 420 and protrudes toward the side where the locking groove 220 is located. When the lock cylinder 450 moves from the locking position to the unlocking position, the lock cylinder 450 can be abutted against the driving part 423 of the lock tongue 420 through the rotating shaft 440, so that the lock tongue 420 overcomes the elastic force of the lock tongue spring 430, and the clamping part 421 moves out of the locking groove 220. When the lock cylinder 450 moves from the unlock position to the lock position, the rotation shaft 440 is separated from the driving portion 423, and at this time, the lock tongue 420 is reset under the elastic force of the lock tongue spring 430, so as to push the locking portion 421 into the locking groove 220.
In an embodiment, the rotating shaft 440 is a cam or a D-shaped block, or the outer contour of the rotating shaft 440 is defined by major and minor arcs or curves and straight lines. That is, the rotation shaft 440 has an eccentric motion structure, so that the rotation shaft 440 can intermittently contact with the driving part 423 when rotating, the rotation shaft 440 can be abutted with the driving part 423 when unlocking, the rotation shaft 440 can be separated from the driving part 423 when locking, and the reliable locking of the screw locking lockset can be realized. Of course, in other embodiments of the present invention, the rotating shaft 440 may have other structures capable of eccentric rotation.
In one embodiment, the latch 420 has a guiding inclined surface 422, and the guiding inclined surface 422 is disposed on the locking portion 421. When the screw locking lockset is locked, the guide inclined surface 422 is used for overcoming the elastic force of the lock tongue spring 430 so as to guide the clamping part 421 to enter the locking groove 220. When the screw lock is locked, the lock body 100 is reversed from the open position to the locked position. In the process of reverse rotation of the lock body 100, the clamping portion 421 is abutted to the outer wall of the locking groove 220 through the guide inclined surface 422, the guide inclined surface 422 can guide the lock tongue 420 to move towards one side of the installation seat, and meanwhile, the guide inclined surface 422 can enable the lock tongue 420 to overcome the elastic force of the lock tongue spring 430 and move towards the direction of the lock tongue spring 430. When the latch 420 completely enters the locking groove 220, the locking portion 421 is locked in the locking groove 220 of the base 200 under the elastic force of the latch spring 430, so as to limit the rotation of the lock body 100 relative to the base 200. Alternatively, the guide ramp 422 may be planar or arcuate.
In one embodiment, the screw locking device further comprises a chip 500, wherein the chip 500 is sleeved on the lock cylinder 450, and is suitable for storing the identity information of the screw locking device. Illustratively, the chip 500 is a wireless chip. The computer key may read the code value of the chip 500 to determine whether the identity information of the computer key matches the identity information of the screw lock. If the key is matched, the computer key can perform unlocking operation; if the key is not matched, the computer key cannot perform unlocking operation.
When the screw locking lockset is unlocked, a computer key is inserted into the lock cylinder 450, the code value of the code chip 500 is read by the computer key, the verification is passed, the lock cylinder 450 is unlocked by the computer key, and at the moment, the computer key is rotated and the lock cylinder 450 is driven to rotate, so that the lock cylinder 450 moves from a locking position to an unlocking position. In addition, when the lock cylinder 450 rotates, the lock tongue 420 is driven to synchronously rotate through the rotating shaft 440, and the lock tongue 420 overcomes the elastic force of the lock tongue spring 430 to enable the clamping portion 421 to be separated from the locking groove 220 of the base 200, so that the lock body 100 is unlocked. Then, the lock body 100 is rotated to the open position, the cavity of the lock body 100 is separated from the head 810 of the screw 800, the head 810 of the screw 800 is not shielded, at this time, a sufficient operation space is reserved above the head 810 of the screw 800, and the screw locking lockset is in the unlocked state, as shown in fig. 4 to 6. The operator may use a screwdriver, wrench, or the like to perform conventional operations on the screw 800.
In this state, turning the key drives the lock cylinder 450 and the rotation shaft 440 to rotate reversely, so that the lock cylinder 450 moves from the unlock position to the lock position, and at the same time, the lock tongue 420 is reset under the action of the lock tongue spring 430, so that the positions of the parts in the lock body 100 are restored to the state where the lock position is located.
When the screw locking lockset is locked, the lock body 100 is firstly reversely rotated relative to the base 200 to move from the opening position to the locking position when the screw locking lockset is locked, so that the cavity of the lock body 100 is covered on the head 810 of the screw 800. During the reverse rotation of the lock body 100, the locking portion 421 will abut against the outer wall of the locking groove 220 through the guiding inclined surface 422, and gradually overcome the elastic force of the locking spring 430, so that the locking portion 421 moves towards the side of the locking spring 430. When the latch 420 completely enters the locking groove 220, the locking portion 421 is locked in the locking groove 220 of the base 200 under the elastic force of the latch spring 430, so as to limit the rotation of the lock body 100 relative to the base 200. At this time, the lock body 100 receives and shields the head 810 of the screw 800, and the screw locking lock is in a locked state, as shown in fig. 2 and 3. The operator cannot use the tool to unscrew the screw 800.
In addition, the screw locking lockset provided by the invention is convenient to install and strong in universality, and can be suitable for locking screws 800 with various specifications only by replacing matched screws 800 and gaskets so as to be suitable for threaded holes of box bases of different equipment. Moreover, the screw locking lockset is simple to operate, and the locking operation can be completed without a key; meanwhile, the screw locking lockset is reliable in structure, the locked screw can be completely covered during locking, and the outside cannot touch the screw for operation; moreover, since the adjustment washer 600 and the base 200 are rotatable relative to each other, the screw 800 is not accidentally unscrewed by following the rotation of the screw 800 when the lock body 100 is rotated.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the description scope of the present specification.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (15)
1. A screw locking lock, mountable over a screw (800), comprising:
a base (200) having a first through hole (210) through which the screw (800) passes;
a lock body (100) rotatably provided on the base (200) and having a cavity for receiving a head (810) of the screw (800); and
a locking assembly (400) arranged on the lock body (100), wherein the locking assembly (400) is provided with an unlocking position and a locking position; when the locking assembly (400) is in the locking position, the locking assembly (400) locks the lock body (100) to the base (200), and the cavity of the lock body (100) accommodates and shields the head (810) of the screw (800); when the locking assembly (400) is in the unlocking position, the lock body (100) can rotate relative to the base (200), and the cavity of the lock body (100) is separated from the head (810) of the screw (800), so that the head (810) of the screw (800) has an operation space.
2. The screw lock according to claim 1, wherein the locking assembly (400) comprises a lock tongue (413) and a lock cylinder (450), the lock tongue (413) is movably arranged on the lock body (100), the lock cylinder (450) is rotatably arranged on the lock body (100), the lock cylinder (450) can rotate to drive the lock tongue (413) to move, the lock tongue (413) can extend into or move out of the base (200), and the lock tongue (413) is in a locking position or an unlocking position.
3. The screw lock according to claim 2, wherein the locking assembly (400) further comprises a spindle (440), the spindle (440) is disposed on the lock cylinder (450) and located on one side of the lock tongue (413), and the lock cylinder (450) can drive the lock tongue (413) to move through the spindle (440).
4. A screw-locking lockset according to claim 3, characterized in that the base (200) comprises a mounting seat adapted to be mounted to a box base and a locking post provided to the mounting seat, the locking post having a locking groove (220);
the lock tongue (413) can move in or out of the locking groove (220) when rotating, so that locking or unlocking of the lock tongue (413) is realized.
5. The screw lock according to claim 4, wherein the mounting block has the first through hole (210) through which the screw (800) passes, and the locking post is columnar and vertically fixed to an edge position of the mounting block.
6. The screw lock according to claim 5, wherein the locking post is of unitary construction with the mounting block.
7. The screw lock according to claim 4, wherein the locking tongue (413) has a locking portion (421), and the locking tongue (413) is rotated to move the locking portion (421) into or out of the locking groove (220).
8. The screw lock according to claim 7, wherein the lock assembly (400) further comprises a bolt spring (430), the bolt spring (430) abutting between the bolt (413) and the lock body (100), the bolt spring (430) holding the bolt (413) in a locked position.
9. Screw-locking lock according to claim 8, characterized in that the bolt spring (430) is located on the side of the bolt (413) facing away from the detent (421).
10. The screw lock according to any one of claims 7 to 9, wherein the lock assembly (400) further comprises a press block (410), the press block (410) being fixed to the lock body (100), the lock tongue (413) being rotatably mounted to the press block (410);
the pressing block (410) is provided with a boss (412), and the boss (412) is used for abutting against the lock tongue (413) so as to limit the rotation angle of the lock tongue (413).
11. The screw locking lockset according to claim 10, wherein said press block (410) further has a protruding portion (411), one end of said lock tongue (413) is rotatably mounted to said protruding portion (411), and the other end of said lock tongue (413) is rotatable around said protruding portion (411) to move said engaging portion (421) into or out of said locking groove (220).
12. The screw locking lockset according to claim 7, wherein the lock tongue (413) further comprises a driving portion (423), and the rotating shaft (440) is intermittently abutted with the driving portion (423) so that the lock tongue (413) drives the clamping portion (421) to move into or out of the locking groove (220).
13. The screw lock according to claim 12, wherein the spindle (440) is a cam or D-block, or wherein the outer contour of the spindle (440) is defined by major and minor arcs or by curves and straight lines.
14. The screw lock according to claim 8, characterized in that the bolt (413) has a guiding bevel (422), the guiding bevel (422) being provided to the clamping portion (421);
when the screw locking lockset is locked, the guide inclined surface (422) is used for overcoming the elastic force of the spring bolt spring (430) so as to guide the clamping part (421) to enter the locking groove (220).
15. The screw lock according to any of the claims 2 to 9, further comprising a chip (500), said chip (500) being arranged around said lock cylinder (450), adapted to store identity information of said screw lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529576.XA CN110131290B (en) | 2019-06-19 | 2019-06-19 | Screw locking lockset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529576.XA CN110131290B (en) | 2019-06-19 | 2019-06-19 | Screw locking lockset |
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| Publication Number | Publication Date |
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| CN110131290A CN110131290A (en) | 2019-08-16 |
| CN110131290B true CN110131290B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910529576.XA Active CN110131290B (en) | 2019-06-19 | 2019-06-19 | Screw locking lockset |
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| CN (1) | CN110131290B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528982A (en) * | 2019-09-20 | 2019-12-03 | 珠海优特电力科技股份有限公司 | A kind of lock lock set |
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|---|---|
| CN110131290A (en) | 2019-08-16 |
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