CN217999218U - Cat eye unlocking prevention lockset - Google Patents

Abstract

The utility model relates to a tool to lock technical field discloses a prevent cat eye tool to lock that unblanks, include: the handle assembly comprises a handle part, a square core connecting part and a clutch pin, and the clutch pin is arranged between the handle part and the square core connecting part in a sliding manner; the top plate is arranged in the lock shell in a sliding mode, the sliding direction of the top plate is intersected with the sliding direction of the clutch pin, one end of the top plate is abutted to the clutch pin, and the middle of the top plate is provided with an inclined first limiting groove; the second limiting groove is arranged in the lock shell, the length direction of the second limiting groove is intersected with the length direction of the first limiting groove, and a positioning groove is formed in the wall of the second limiting groove; the poking button is provided with a poking rod extending out of the lockset, the other end of the poking rod is provided with a push rod arranged in the first limiting groove, the middle part of the poking button is provided with a limiting block arranged in the second limiting groove in a sliding manner, and the side surface of the limiting block is provided with a ball which can be clamped into the positioning groove. This prevent cat eye tool to lock that unblanks can prevent that other people from unblanking via the cat eye from the door outside.

Description

Cat eye unlocking prevention lockset

Technical Field

The utility model relates to a tool to lock technical field, it is specific, relate to a prevent cat eye tool to lock that unblanks.

Background

Unlocking via a cat eye is often applied to emergency unlocking as a technical unlocking means. The specific process is that a special tool is inserted into the door through the cat eye, and then the handle on one side in the door is rotated to realize unlocking. The means can bring certain potential safety hazards at the same time. Therefore, a lockset capable of preventing other people from unlocking from the cat eye is needed.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve above-mentioned technical problem and make, its purpose provides a prevent cat eye tool to lock that unblanks, can prevent that other people from unblanking via the cat eye from the door outside.

In order to achieve the above object, the utility model provides a prevent cat eye tool to lock that unblanks, include: the handle assembly comprises a handle part, a square core connecting part and a clutch pin, wherein the clutch pin is arranged between the handle part and the square core connecting part in a sliding manner, and the handle part and the square core connecting part can synchronously rotate only when one end of the clutch pin is inserted into the handle part and the square core connecting part; the top plate is arranged in the lock shell in a sliding mode, the sliding direction of the top plate is intersected with the sliding direction of the clutch pin, one end of the top plate is abutted to the clutch pin, and the middle of the top plate is provided with an inclined first limiting groove; the second limiting groove is arranged in the lock shell, the length direction of the second limiting groove is intersected with the length direction of the first limiting groove, and a positioning groove is formed in the wall of the second limiting groove; the lock is characterized in that the lock comprises a shifting knob, one end of the shifting knob is a shifting lever extending out of the lock, the other end of the shifting knob is a push rod arranged in a first limiting groove, the middle of the shifting knob is a limiting block arranged in a second limiting groove in a sliding mode, and a ball capable of being clamped into the positioning groove is arranged on the side face of the limiting block.

Preferably, a first spring for applying an outward acting force to the ball is arranged in the limiting block.

Preferably, a second spring that applies an urging force toward the top plate to the clutch pin is provided in the lock housing.

Preferably, the sliding direction of the top plate is parallel to the sliding direction of the clutch pin; the length direction of the second limiting groove is vertical to the sliding direction of the clutch pin; the included angle between the length direction of the first limiting groove and the length direction of the second limiting groove is 20-50 degrees.

Preferably, two positioning grooves are formed in the lower side groove wall of the second limiting groove; after the shifting lever is shifted to enable the ball to be clamped in one of the positioning grooves, the top plate jacks one end of the clutch pin into the handle part and the square core connecting part; when the poking rod is poked to enable the ball to move towards the other positioning groove, the push rod pushes the top plate to be far away from the clutch pin.

Preferably, a positioning clamp spring is further arranged in the lock shell, two ends of the positioning clamp spring are fixed, and a limiting portion protruding towards the middle of each of the two positioning grooves is arranged in the middle of the positioning clamp spring.

According to above description and practice, prevent cat eye tool to lock that unblanks, through set up the separation and reunion pin in the handle subassembly, the separation and reunion pin is when not receiving external force, and outside its upper end was in the handle subassembly, the handle portion in the handle subassembly can not rotate with square core connecting portion in step, rotates the handle portion via cat eye this moment and can not realize unblanking, has realized preventing the function of cat eye promptly. Set up the slidable roof again at separation and reunion pin lower extreme, turn round through dialling of establishing at the second spacing inslot and promote the roof and slide, finally can dial when turning round via the roof with the separation and reunion pin insert the handle subassembly in, but make the handle portion and the square core connecting portion in the handle subassembly rotate in step, can normally switch tool to lock. In addition, set up positioning groove in the second spacing inslot to and set up the ball that can block in positioning groove on dialling to turn round, can make to dial and turn round more stable, only externally just can remove when applying certain effort to it, further promoted the validity of this tool to lock cat eye function of preventing.

Drawings

Fig. 1 is a schematic sectional view of a cat eye unlocking prevention lock according to an embodiment of the present invention.

Fig. 2a and 2b are the exploded schematic views of the cat eye unlocking prevention lock in two different angles according to an embodiment of the present invention.

Fig. 3a and 3b are the internal structure schematic diagram of the anti-peep hole unlocking lock related to in one embodiment of the present invention when the anti-peep hole is opened and the anti-peep hole function is closed.

Fig. 3c is an internal structure diagram of the lock for preventing peep hole unlocking related to another embodiment of the present invention when the peep hole preventing function is closed.

Fig. 4 is an assembly diagram of the second limiting groove and the toggle button according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of the second limiting groove and the knob according to an embodiment of the present invention.

The reference symbols in the figures are:

1. handle part 2, square core connecting part 3 and clutch pin

4. Roof 5, tool to lock casing 6, second spacing groove

7. Toggle 8, positioning clamp spring 9 and second spring

21. Third limiting groove 22, baffle 41 and first limiting groove

42. Fourth limit groove 61, positioning groove 71 and deflector rod

72. Push rod 73, limiting block 74 and ball

75. A bar hole 76, a first spring 81, and a limiting part

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the embodiment, a lock for preventing a peep hole from unlocking is disclosed, and fig. 1 shows a section structure of the lock for preventing the peep hole from unlocking; figures 2a and 2b show exploded views of the anti-peep hole unlocking lock at two different angles; fig. 3a shows an internal assembly structure of the cat-eye prevention unlocking tool when the cat-eye prevention function is unlocked, and the structure of the square core connecting part is omitted; fig. 3b shows an internal assembly structure of the cat-eye prevention unlocking tool when the cat-eye prevention function is closed, wherein the structure of the square core connecting part is omitted; FIG. 4 shows an assembly structure of a toggle button and a second limiting groove in the cat-eye-proof unlocking lock; fig. 5 shows a section structure of the poking button and the second limiting groove in the cat-eye-proof unlocking lock.

Referring to fig. 1 to 5, in this embodiment, the lock for preventing peep hole from unlocking includes: handle subassembly, roof 4, second spacing groove 6 and dial and turn round 7. Wherein, be equipped with clutch in the handle subassembly, whether control handle and inside square core synchronous rotation through this clutch. When the two can not rotate in step, even can rotate the handle of one side in the door after passing the cat eye through special-purpose tool, also can not realize the rotation of the inside square core of tool to lock to the function of preventing that the cat eye unblanks is realized. Specifically, the handle subassembly includes handle portion 1, square core connecting portion 2 and separation and reunion pin 3. The clutch pin 3 is arranged between the handle part 1 and the square core connecting part 2 in a sliding mode, and when one end of the clutch pin 3 is inserted between the handle part 1 and the square core connecting part 2, the handle part 1 and the square core connecting part 2 can rotate synchronously; when one end of the clutch pin 3 moves out of the handle portion 1 and the square core connecting portion 2 under the action of external force, the handle portion 1 and the square core connecting portion 2 cannot rotate synchronously. The external force may be the gravity of the clutch pin 3 itself, or may be a force applied thereto by another elastic member.

The top plate 4 is arranged in the lock shell 5 in a sliding mode, the sliding direction of the top plate is intersected with the sliding direction of the clutch pin 3, and one end of the top plate is abutted to the clutch pin 3, so that when the top plate 4 slides, the clutch pin 3 can be driven to slide, one end of the clutch pin 3 is inserted into the middle of the handle part 1 and the square core connecting part 2, and the cat eye prevention function is achieved. An inclined first limiting groove 41 is formed in the middle of the top plate 4 and used for matching with the shifting knob 7 to realize sliding of the top plate 4.

The second limiting groove 6 is disposed on the inner side wall of the lock housing 5, and the length direction of the second limiting groove intersects with the length direction of the first limiting groove 41, so as to accommodate the toggle button 7, and the toggle button 7 can slide in the second limiting groove 6. Be equipped with positioning groove 61 at the inner wall of second spacing groove 6 for to dialling to turn round 7 and fix a position, convenience of customers learns to dial the motion position who turns round 7, still can restrict to a certain extent simultaneously and dial the removal of turning round 7, makes it just slidable when the exogenic action.

In this embodiment, one end of the toggle 7 is a toggle 71 extending to the outside of the lock, the other end of the toggle 7 is a push rod 72 disposed in the first limiting groove 41, and the middle of the toggle 7 is a limiting block 73 slidably disposed in the second limiting groove 6. In addition, the side surface of the limiting block 73 is also provided with a ball 74 which can be clamped in the positioning groove 61, part of the structure of the ball 74 is positioned in the limiting block 73, and the other part of the structure is positioned outside the limiting block 73. Therefore, in the sliding process of the knob 7, when the ball 74 is opposite to the positioning groove 61, the ball can be clamped in the positioning groove 61, and only a certain external force is applied to the knob 7 at this time, the knob can continue to slide.

When the anti-cat eye device is used, the shifting rod 71 is shifted to one side, the shifting knob 7 slides along the second limiting groove 6, the push rod 72 at the other end of the shifting knob 7 can drive the top plate 4 to slide to one side close to the clutch pin 3, the top plate 4 further pushes the clutch pin 3 to slide, one end of the clutch pin 3 is inserted into the middle of the handle part 1 and the square core connecting part 2, synchronous rotation of the handle part 1 and the square core connecting part 2 is achieved, and the cat eye prevention function is finally closed; poking rod 71 is poked to the other side, so that poking button 7 slides along second spacing groove 6, push rod 72 at the other end of poking button 7 can drive top plate 4 to slide to one side far away from clutch pin 3, and then one end of clutch pin 3 can move down to the outside of handle portion 1 and square core connecting portion 2 under the external force, so that handle portion 1 and square core connecting portion 2 can not rotate synchronously, and finally the cat eye prevention function is started.

Through setting up positioning groove 61's position again, can carry on spacingly to dialling to turning round 7 on the one hand, on the other hand still can convenient to use user learns the concrete position of dialling to turning round 7. For example, two positioning grooves 61 are provided in the second stopper groove 6. When the poking rod 71 is poked to clamp the ball 74 in one of the positioning grooves 61, the top plate 4 jacks one end of the clutch pin 3 into the handle part 1 and the square core connecting part 2; when the dial 71 is dialed to move the ball 74 to the other positioning groove 61, the push rod 72 pushes the top plate 4 away from the clutch pin 3, and finally, one end of the clutch pin 3 moves to the outside of the handle part 1 and the square core connecting part 2. In other words, the balls 74 are clamped in the different positioning grooves 61, the positions of the poking buttons when the cat eye prevention function of the lock is opened and closed are respectively corresponded, the poking buttons 7 can be in a stable state when the cat eye prevention function is opened and closed, the poking buttons 7 can be moved only by applying certain external force, and the cat eye prevention function effect of the lock is further improved.

In addition, in this embodiment, in order to improve the engagement effect of the balls 74 and the positioning grooves 61 and improve the sliding smoothness of the toggle 7, a hole 75 is provided in the stopper 73, and a first spring 76 is provided in the hole 75. The first spring 76 has one end abutting on the inner wall of the slit 75 and the other end abutting on the ball 74, and applies a biasing force to the ball 74 toward the outside of the slit 75. When the ball 74 is engaged in the positioning groove 61, the first spring 76 can press the ball 74 against the groove wall of the positioning groove 61. When the user needs to move the toggle 7 horizontally, the groove wall of the positioning groove 61 is inclined, so that the reaction force applied to the ball 74 by the groove wall has a component force along the length direction of the first spring 76, and the first spring 76 can be contracted, thereby facilitating the movement of the ball 74. Simultaneously, after the ball 74 moves out of the positioning groove 61, the ball can tightly abut against the groove wall of the second limiting groove 6 under the acting force of the first spring 76, so that rolling friction is formed between one side of the shifting knob 7 and the second limiting groove 6, and the shifting knob 7 is more convenient to move.

In this embodiment, the clutch pin 3 is disposed vertically, and the sliding direction of the top plate 4 is parallel to the sliding direction of the clutch pin 3, and also slides vertically. The length direction of the second limiting groove 6 is perpendicular to the sliding direction of the clutch pin 3, i.e. the second limiting groove 6 is horizontally arranged. The included angle between the length direction of the first limiting groove 41 and the length direction of the second limiting groove 6 is 30 degrees. Under this kind of structure, can drive roof 4 and separation and reunion pin 3 removal through dialling turning round 7 by less external force. In other embodiments, the included angle between the length direction of the first limiting groove 41 and the length direction of the second limiting groove 6 can be changed to be between 20 degrees and 50 degrees, and the top plate 4 and the clutch pin 3 can move in time while the shifting knob 7 can move in the range, so that the cat eye prevention function can be opened or closed.

In addition, in this embodiment, a second spring 9 that applies a biasing force to the clutch pin 3 toward the top plate 4 side is further provided in the lock case 5. Specifically, the second spring 9 is disposed in the third limiting groove 21 of the square core connecting portion 2 and sleeved on the clutch pin 3. One end of the second spring 9 abuts against the ring plate on the periphery of the clutch pin 3, and the other end abuts against the groove wall of the third limiting groove 21 and is in a compressed state. Therefore, when the clutch pin 3 is not pushed by the top plate 4, the clutch pin 3 moves downward under the action of the elastic force of the second spring 9, so that the upper end of the clutch pin is separated from the groove on the handle part 1, and the linkage relation between the clutch pin 3 and the handle part 1 is released. In other words, the second spring 9 can quickly release the interlocking relationship between the clutch pin 3 and the handle 1, and further realize the anti-peep hole function of the lock. The outside of third spacing groove 21 still is equipped with baffle 22 for prevent that separation and reunion pin 3 and second spring 9 from droing from third spacing groove 21, baffle 22 passes through the screw connection on the body of square core connecting portion 2.

In addition, as shown in fig. 3a and 3b, in this embodiment, a positioning spring 8 is further disposed in the lock housing 5, two ends of the positioning spring 8 are fixed, and a limiting portion 81 protruding to the middle of the two positioning grooves 61 is disposed in the middle of the positioning spring 8. When the anti-peep hole function of the lockset is opened or closed, the side surfaces of the push rod 72 are respectively abutted against the two sides of the limiting part 81. Therefore, after the cat eye prevention function is opened or closed, the resistance of the limiting part 81 to the push rod 72 needs to be overcome when the toggle button 7 is pushed, and the stability of the toggle button 7 is further improved. Fig. 3c shows the internal structure of the lock after closing the anti-peep-hole function when the positioning clamp spring is not provided.

In this embodiment, the top plate 4 is slidably disposed in the lock housing 5, and specifically, four vertical fourth limiting grooves 42 are disposed on the top plate 4, and screws or bolts are inserted into the fourth limiting grooves, so that the top plate 4 can only slide vertically. In other embodiments, the number of the fourth limiting grooves 42 may be changed, but it should be no less than two, or other sliding grooves, sliding rails, and other structures may be adopted to slidably dispose the top plate 4 in the lock housing 5.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a prevent cat eye tool to lock that unblanks which characterized in that includes:

the handle assembly comprises a handle part, a square core connecting part and a clutch pin, wherein the clutch pin is arranged between the handle part and the square core connecting part in a sliding manner, and the handle part and the square core connecting part can synchronously rotate only when one end of the clutch pin is inserted into the handle part and the square core connecting part;

the top plate is arranged in the lock shell in a sliding mode, the sliding direction of the top plate is intersected with the sliding direction of the clutch pin, one end of the top plate is abutted to the clutch pin, and the middle of the top plate is provided with an inclined first limiting groove;

the second limiting groove is arranged in the lock shell, the length direction of the second limiting groove is intersected with the length direction of the first limiting groove, and a positioning groove is formed in the wall of the second limiting groove;

the poking button is provided with a poking rod extending out of the lockset, the other end of the poking rod is provided with a push rod arranged in the first limiting groove, the middle part of the poking button is provided with a limiting block arranged in the second limiting groove in a sliding manner, and the side surface of the limiting block is provided with a ball which can be clamped into the positioning groove.

2. The cat-eye resistant lock of claim 1,

and a first spring which applies an outward acting force to the ball is arranged in the limiting block.

3. The peep-hole preventing unlock lock set forth in claim 1,

and a second spring which applies acting force towards one side of the top plate to the clutch pin is arranged in the lock shell.

4. The cat-eye resistant lock of claim 1,

the sliding direction of the top plate is parallel to the sliding direction of the clutch pin;

the length direction of the second limiting groove is vertical to the sliding direction of the clutch pin;

the included angle between the length direction of the first limiting groove and the length direction of the second limiting groove is 20-50 degrees.

5. The peep-hole preventing unlock lock set forth in claim 1,

the lower side groove wall of the second limiting groove is provided with two positioning grooves;

after the shifting lever is shifted to enable the ball to be clamped in one of the positioning grooves, the top plate jacks one end of the clutch pin into the handle part and the square core connecting part;

when the poking rod is poked to enable the ball to move towards the other positioning groove, the push rod pushes the top plate to be far away from the clutch pin.

6. The cat-eye resistant lock of claim 5,

the lock shell is also internally provided with a positioning clamp spring, the two ends of the positioning clamp spring are fixed, and the middle of the positioning clamp spring is provided with two limiting parts protruding from the middle of the positioning groove.

Images