CN217631761U - Door lock capable of preventing peep hole - Google Patents

Abstract

The utility model discloses a prevent cat eye lock, prevent cat eye lock includes: a panel; handle assembly, handle assembly rotationally locates the panel and includes: the handle is internally provided with an accommodating channel, the inner surface of the accommodating channel is provided with a guide groove, the button is provided with one end extending into the accommodating channel, the peripheral wall of the button is provided with a raised convex rib which is movably matched in the guide groove, the clutch block is fixed with the button and is provided with a first matching part, and the reset seat is fixed with the handle; the square shaft sleeve is movably arranged in the reset seat, a second matching part is arranged at one end, facing the clutch block, of the square shaft sleeve, the first matching part and the second matching part are separated when the button is at the initial position, and the first matching part and the second matching part are matched when the button is pressed to the pressing position. According to the utility model discloses a prevent cat eye lock can prevent effectively that thief, thief from stretching into the hook handle from cat eye or glass window with iron wire or other hook-shaped instrument and opening the door, improves the security of lock.

Description

Door lock capable of preventing peep hole

Technical Field

The utility model belongs to the technical field of the tool to lock technique and specifically relates to a prevent cat eye lock is related to.

Background

At present, the door lock that most residents used is the handle lock, and the thief destroys the cat eye of door leaf very easily, destroys the back to the cat eye, just can open the door through the cat eye with the long stick seesaw handle in the door, need not prize the door outside the door like this, and the thief can need not to prize the lock and the smooth entering indoor property of stealing the family, leads to the emergence of stealing the case.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a prevent cat eye lock, prevent that cat eye lock can control and prevent closing and opening of cat eye function of unblanking, direction about can the quick replacement, simple structure, safe and reliable.

According to the utility model discloses a prevent cat eye lock, include: a panel; a handle assembly rotatably disposed on the panel, the handle assembly comprising: the handle is internally provided with an accommodating channel extending along the rotation axis of the handle assembly, a concave guide groove is formed on the inner surface of the accommodating channel and extends along the rotation axis, the button is switched between an initial position and a pressing position, a raised convex rib is formed on the peripheral wall of the button and movably matched in the guide groove, and a clutch block is arranged in the accommodating channel and fixed with one end of the button and provided with a first matching part and a resetting seat, and the resetting seat is fixed with the handle; the square shaft sleeve is movably arranged in the reset seat, one end, facing the clutch block, of the square shaft sleeve is provided with a second matching part, the first matching part and the second matching part are separated when the button is at the initial position, and when the button is pressed to the pressing position, the first matching part and the second matching part are matched to enable the square shaft sleeve and the clutch block to be relatively fixed; the resetting torsion spring is arranged on the panel, is connected with the Fang Zhoutao and the resetting seat and is used for driving the square shaft sleeve and the resetting seat to reset.

According to the utility model discloses a prevent cat eye lock through set up the button on the handle, through pressing the button to twist grip can realize unblanking in the door, does not press the button then can not unblank in the follow door, from this, can prevent effectively that thief, thief from stretching into the hook handle from cat eye or glass window with iron wire or other hook-shaped instrument and opening the door, improves burglary-resisting door's security. Through setting up protruding muscle and guide way, pressing the in-process of button, the protruding muscle can play the guide effect to the removal of button, improves the stability that the button removed, simultaneously, through locating the protruding muscle in the guide way, the protruding muscle can also be through cooperating with the guide way, prescribes a limit to the rotation of button in holding the passageway to when the assurance was rotated at the handle, the button can rotate with the handle is synchronous. Through setting up the reset torsion spring, the reset torsion spring can drive the square shaft sleeve and/or reset seat automatic re-setting, realizes the automatic re-setting function of square shaft sleeve and reset seat, simple structure, and the second cooperation portion that can guarantee the square shaft sleeve aligns with the first cooperation portion of separation and reunion piece, guarantees that the lock can effectively unblank when needs are unblanked.

In some embodiments, the reduction torsion spring has a first force arm and a second force arm extending outward in a radial direction of the reduction torsion spring, the first force arm and the second force arm are adjacently arranged in a circumferential direction of the reduction torsion spring, a raised positioning bump is arranged on the panel, and the first force arm and the second force arm are respectively located at two sides of the positioning bump; reset and be equipped with the piece that resets on the seat, the one end that resets with reset the seat and link to each other, the other end orientation of the piece that resets the panel extension, just the piece that resets the other end extend to first arm of force with between the second force arm, the piece that resets the other end through with first arm of force or second force arm interact resets in order to realize reset the seat, be equipped with the orientation on the square shaft cover the projection that resets that the panel extended, the free end of the projection that resets extends to first arm of force with between the second force arm, reset the projection the free end through with first arm of force or second force arm interact is in order to realize resetting the square shaft cover.

By providing the positioning lug, when the reset torsion spring is installed, the first force arm and the second force arm can be respectively abutted against the two side surfaces of the positioning lug in the circumferential direction of the reset torsion spring.

Through set up the piece that resets on the seat that resets, when handle components is not rotated, first arm of force and second arm of force are located the both sides that resets at reset torsional spring circumferential direction respectively, and when rotating handle components, the piece that resets promotes first arm of force and keeps away from the removal of second arm of force, makes the reset torsional spring take place to warp, and when release handle components, for recovering the deformation, first arm of force promotes the seat that resets and moves toward gyration, restore to the position relative with the radial inside and outside of location lug until the piece that resets.

Through set up the projection that resets on square shaft sleeve, when square shaft sleeve does not rotate under handle components's drive, the projection that resets is located between first arm of force and the second arm of force, first arm of force and second arm of force are located the butt respectively and are being reset the projection in the both sides of reset torsional spring circumferential direction promptly, when square shaft sleeve rotates under handle components's drive, the projection that resets promotes first arm of force and keeps away from the second arm of force along the circumference of reset torsional spring and remove, make the reset torsional spring take place to warp, when releasing handle components, the reset torsional spring is for resumeing the deformation, first arm of force promotes the projection that resets and moves toward turning round, restore to the position relative with the radial inside and outside of locating lug until the projection that resets.

In some embodiments, be equipped with the reset hole on the reset seat, the piece that resets is reset screw, reset screw wear to locate in the reset hole and stretch into to first arm of force with between the second arm of force, wherein, be equipped with two on the reset seat reset hole, two reset hole symmetrical arrangement is in the ascending both sides in the radial direction of reset seat, be equipped with the cantilever plate on the square shaft cover, the cantilever plate is in the perpendicular to keep away from in the plane of rotation axis place the rotation axis extends outward, the projection that resets is connected the outer end of cantilever plate, be formed with on the cantilever plate along being on a parallel with the rotation axis direction link up the hole of dodging of cantilever plate, dodge the hole with reset screw is relative in the direction that is on a parallel with the rotation axis.

Through two reset holes of symmetrical arrangement on the reset seat, when the direction of handle needs to be changed, can take out reset screw from reset hole earlier, again with handle components rotation 180, install reset screw to reset hole again, can realize the change of handle direction, simple structure, convenient operation.

Through set up the hole of dodging on the cantilever plate, in the projection plane of perpendicular to rotation axis, the reset screw can be located dodge downtheholely, thus, to the cat eye door lock of preventing assembled, the hole of dodging on the cantilever plate of square axle sleeve can make the reset screw show out, when needing to change the handle direction, need not to dismantle square axle sleeve, can pass and utilize assembly and disassembly tools to stretch into and dodge downthehole, twist and lie in dodging downthehole reset screw, dismantle reset screw, then rotating handle subassembly 180, pass again reset screw and dodge the hole and insert the downthehole screwing in the reset on the seat that resets, can accomplish the switching-over of handle. Thereby, the commutation operation can be further simplified.

In some embodiments, the cantilever plate has a first side surface and a second side surface that are arranged oppositely in the rotation direction of the handle assembly, the first side surface and the second side surface are sequentially arranged along the rotation direction of the handle assembly when the handle assembly is unlocked, a convex counter-locking convex column is formed on a surface of one side of the reset seat facing the cantilever plate, the counter-locking convex column is located on the side where the second side surface of the cantilever plate is located, and when the handle assembly rotates in the direction opposite to the rotation direction when the handle assembly is unlocked, the counter-locking convex column pushes the cantilever plate to move through the second side surface to drive the reset convex column to rotate so as to lock the lock body.

When the button is not pressed, the clutch block is separated from the square shaft sleeve, and the square shaft sleeve does not act when the handle is rotated. Through set up the anti-lock projection on the reset seat, when the handle is rotated along the opposite direction of rotation when unblanking, the handle drives the reset seat and rotates, the anti-lock projection on the reset seat moves along the cantilever plate along the opposite direction of rotation when unblanking, and promote the cantilever plate to rotate along the opposite direction of rotation when unblanking, the cantilever plate drives the square shaft sleeve and rotates along the opposite direction of rotation when unblanking, the square shaft sleeve drives the lock core and rotates along the opposite direction of rotation when unblanking, thereby the locking body. Therefore, the handle is rotated in the direction opposite to the rotating direction during unlocking, the lock body can be locked without pressing the button, and the operation is simple and convenient.

In some embodiments, the square shaft sleeve is provided with a raised limit flange on the outer circumferential surface, and the door lock further comprises: the shaft sleeve pressing plate is fixed with the reset seat and is located on one side, away from the handle, of the reset seat, a through hole is formed in the shaft sleeve pressing plate, one end, away from the handle, of the square shaft sleeve penetrates through the through hole, and the limiting flange is located on one side, facing towards the reset seat, of the shaft sleeve pressing plate. Thereby, the sleeve pressing plate can restrict the displacement of the square sleeve in the rotation axis direction.

In some embodiments, a first fixing hole is formed on the back locking convex column, a second fixing hole is formed on the shaft sleeve pressing plate, the shaft sleeve pressing plate penetrates through the second fixing hole and the first fixing hole through a first screw to be connected to the reset seat, the back locking convex columns include two back locking convex columns, the two back locking convex columns are symmetrically arranged about a first straight line, and the first straight line is a straight line perpendicular to a connecting line of centers of the two reset holes in a projection plane perpendicular to the rotation axis. Like this, when the handle assembly switching-over, the handle assembly of change direction still can realize when handle assembly rotates along the second direction with the first direction reversal, and the back lock projection drives the projection rotation that resets through promoting cantilever plate to remove to the locking lock body.

In some embodiments, the anti-peep hole door lock further comprises a first bearing assembly and a second bearing assembly, the first bearing assembly and the second bearing assembly being located on either side of the face plate in the thickness direction, the first bearing assembly being provided between the handle and the face plate, the second bearing assembly being provided between the reset seat and the face plate, either of the first bearing assembly and the second bearing assembly comprising a flat bearing and two bearing pads located on either side of the flat bearing in the thickness direction.

The handle can rotate relative to the panel by arranging the first bearing assembly, and the reset seat can rotate relative to the panel by arranging the second bearing assembly. Therefore, the friction force between the handle and the panel and between the reset seat and the panel can be reduced, and the handle can be rotated more smoothly.

In some embodiments, the anti-peep hole door lock further comprises a wave washer, the wave washer being stopped between the reset seat and the panel. Because the wave form gasket has certain elasticity deformation volume in the thickness direction, through setting up the wave form gasket, can balance the assembly clearance between handle components and the panel, improve the assembly stability between handle components and the panel, avoid handle components to rock for the panel.

In some embodiments, the inner surface of the receiving channel is formed with a raised positioning boss, the positioning boss extends along the circumferential direction of the receiving channel, the button is arranged on one side of the positioning boss far away from the square shaft sleeve, the clutch block is arranged on the other side of the positioning boss facing the square shaft sleeve, and the clutch block is fixed with the button through a second screw; the handle assembly further comprises a spring, one end of the spring is abutted to the positioning boss, and the other end of the spring is fixed to the other end, far away from the clutch block, of the button; the clutch block is characterized in that one end, connected with the button, of the clutch block is formed into a limiting end, the cross section of the limiting end is non-circular, one part of the accommodating channel in the extending direction is formed into a limiting section, the limiting section is located on one side, facing the clutch block, of the limiting boss, the cross section of the limiting section is matched with the cross section of the limiting end, and the limiting end is inserted into the limiting section to limit transmission of the clutch block relative to the handle.

Through setting up the location boss, not only can make things convenient for button and separation and reunion piece to position the installation in the passageway that holds of handle, improve assembly efficiency, and because button and separation and reunion piece are located the both sides of location boss respectively, after button and separation and reunion piece fixed connection, the location boss can restrict button and separation and reunion piece and move in the axis direction that holds the passageway, avoid button or separation and reunion piece to drop out and hold the passageway.

Through setting up the spring, when pressing the button, the button can compression spring, makes the spring take place deformation, and when release button, the spring is for resumeing deformation, can promote the button and remove to reset to initial position to realize the automatic re-setting of button.

In some embodiments, the first fitting portion is formed as a fitting projection extending toward the square boss, and the second fitting portion is formed as a recessed fitting groove into which the fitting projection is inserted when the button is in the pressed position. From this, realize being fixed in the separation and reunion piece with square shaft sleeve, conveniently realize being connected and separating between separation and reunion piece and the square shaft sleeve, simple structure.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is an exploded view of a peep hole preventing door lock according to an embodiment of the present invention;

fig. 2 is an exploded view of a handle assembly of an anti-peep hole door lock according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of an anti-peep hole door lock according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the anti-peep hole door lock shown in FIG. 3;

fig. 5 is a schematic view of an anti-peep hole door lock according to an embodiment of the present invention, wherein the handle is rotated in a second direction to lock the lock body;

fig. 6 is a schematic view of an anti-peep hole door lock according to an embodiment of the present invention, wherein the handle is rotated in a first direction but the push button is not pressed.

Reference numerals:

100. a door lock for preventing cat eye;

10. a panel; 11. positioning the bump;

20. a handle assembly;

21. a handle; 211. a receiving channel; 212. positioning the boss; 213. a first connection hole;

22. a button; 221. a rib is protruded; 222. a first blind hole;

23. a clutch block; 231. fitting the projection; 232. a first perforation; 233. a limiting end;

24. a reset seat; 241. a reset screw; 242. a reset hole; 243. locking the convex column reversely; 2431. a first fixing hole; 244. a positioning column; 245. a second connection hole;

25. a spring;

30. a square shaft sleeve; 31. a mating groove; 32. resetting the convex column; 33. a cantilever plate; 331. avoiding holes; 34. a limiting flange;

40. a return torsion spring; 41. a first force arm; 42. a second moment arm;

50. a shaft sleeve pressing plate; 51. a through hole; 52. positioning holes; 53. a second fixing hole;

61. a first screw; 62. a second screw; 63. a third screw;

70a, a first bearing assembly; 70b, a second bearing assembly; 71. a flat bearing; 72. a bearing spacer;

80. a wave-shaped gasket;

l, the axis of rotation.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-6, an anti-peep hole door lock 100 according to an embodiment of the present invention is described below.

As shown in fig. 1 and 3, the door lock 100 for preventing cat-eye according to the embodiment of the present invention includes: the lock comprises a panel 10, a handle assembly 20, a square shaft sleeve 30 and a reset torsion spring 40, wherein the handle assembly 20 is rotatably arranged on the panel 10, and the square shaft sleeve 30 is connected with a lock cylinder of a lock body arranged on a door and used for driving the lock cylinder to rotate.

Specifically, as shown in fig. 1 to 3, the handle assembly 20 includes: the handle 21, the button 22, the clutch block 23 and the reset seat 24, wherein the handle 21 is provided with an accommodating channel 211 therein, the accommodating channel 211 extends along a rotation axis L (e.g. the inside and outside direction shown in fig. 3) of the handle assembly 20, the accommodating channel 211 penetrates end surfaces of both ends of the handle 21 (e.g. the inside end surface and the outside end surface of the handle 21 shown in fig. 3) in the direction of the rotation axis L, and an inner surface of the accommodating channel 211 is formed with a recessed guide groove extending along the rotation axis L, that is, the guide groove extends in the inside and outside direction shown in fig. 3. Here, the inside in the inside-outside direction means an indoor side, and the outside means an outdoor side.

As shown in fig. 3, one end of the push button 22 (e.g., the outer end of the push button 22 shown in fig. 3) protrudes into the accommodating passage 211, and the push button 22 is switched between an initial position and a pressed position, for example, when the push button 22 is in a free state, the push button 22 is located at the initial position, and when the push button 22 is pressed, the push button 22 is moved to the pressed position. Be formed with bellied protruding muscle 221 on the perisporium of button 22, the movably cooperation of protruding muscle 221 is in the guide way, like this, in the in-process of pressing button 22, protruding muscle 221 can play the guide effect to the removal of button 22, the stability that button 22 removed is improved, and simultaneously, through locating protruding muscle 221 in the guide way, protruding muscle 221 can also be through cooperating with the guide way, inject the rotation of button 22 in holding channel 211, thereby when the assurance rotates handle 21, button 22 can rotate with handle 21 synchronous.

As shown in fig. 3, the clutch piece 23 is disposed in the receiving channel 211, and the clutch piece 23 is fixed to one end of the push button 22 (e.g., the outer end of the push button 22 shown in fig. 3), and the clutch piece 23 moves synchronously with the push button 22 when the push button 22 is pressed. The reset seat 24 is fixed with the handle 21, the reset seat 24 can synchronously rotate along with the handle 21, and the square shaft sleeve 30 can be movably arranged in the reset seat 24.

Further, the clutch block 23 is provided with a first engaging portion (e.g., an engaging projection 231 described later) on which an end of the square sleeve 30 facing the clutch block 23 (e.g., an inner end of the square sleeve 30 shown in fig. 3) is provided with a second engaging portion (e.g., an engaging recess 31 described later) which is disengaged when the push button 22 is in the initial position and which engages when the push button 22 is pressed to the pressed position to relatively fix the square sleeve 30 and the clutch block 23. That is, when the button 22 is at the initial position, the handle 21 is rotated, the handle 21 can drive the button 22, the clutch block 23 and the reset seat 24 to rotate synchronously, and since the first matching part is separated from the second matching part, the square shaft sleeve 30 does not act at this time, and the door lock cannot be opened. When the button 22 is pressed, the button 22 moves to the pressing position, and due to the fixed matching of the first matching portion and the second matching portion, the handle 21 can drive the button 22, the clutch block 23, the reset seat 24 and the square shaft sleeve 30 to synchronously rotate, and the square shaft sleeve 30 can drive the lock cylinder of the lock body to rotate, so that unlocking is realized, and door opening is realized.

Therefore, in the embodiment, the button 22 is arranged on the handle 21, the door can be unlocked only by pressing the button 22 and rotating the handle 21, and the door cannot be unlocked without pressing the button 22, so that a thief or a burglar can be effectively prevented from stretching into the hook handle from a cat eye or a glass window by using an iron wire or other hook-shaped tools to open the door, and the safety of the anti-theft door is improved.

Further, as shown in fig. 1, a reset torsion spring 40 is disposed on the panel 10, and the reset torsion spring 40 is connected to the reset seat 24 for driving the reset seat 24 to reset. Specifically, when the driving handle 21 rotates, the handle 21 drives the button 22, the clutch block 23 and the reset seat 24 to rotate, the reset seat 24 can drive the reset torsion spring 40 to deform, when the handle 21 is released, the reset torsion spring 40 pushes the reset seat 24 to rotate for restoring deformation, and the reset seat 24 can drive the clutch block 23, the button 22 and the handle 21 to restore to the position before the handle 21 rotates, so that the reset of the handle assembly 20 is realized. In other words, the handle assembly 20 is rotatable around the rotation axis L between a first initial position and a first rotation position, when the handle assembly 20 is at the first initial position, the holding rod portion of the handle 21 is in a horizontal state, and when the button 22 is pressed and the handle assembly 20 is rotated to the first rotation position, the handle assembly 20 can drive the lock cylinder to rotate through the square shaft sleeve 30, so as to realize unlocking.

Further, as shown in fig. 1, a return torsion spring 40 is connected to the square shaft housing 30 for driving the square shaft housing 30 to return. Specifically, when the button 22 is pressed, the driving handle 21 rotates, the handle 21 can drive the button 22, the clutch block 23, the reset seat 24 and the square shaft sleeve 30 rotate synchronously, the square shaft sleeve 30 can drive the lock cylinder of the lock body to rotate, unlocking is realized, in the rotating process of the handle 21, the reset seat 24 and the square shaft sleeve 30 drive the reset torsion spring 40 to deform, when the handle 21 is released, the reset torsion spring 40 is deformed in a recovery mode, the square shaft sleeve 30 is pushed to rotate, the position of the square shaft sleeve 30 before the handle 21 rotates is recovered, and resetting of the square shaft sleeve 30 is realized. Because the reset torsion spring 40 can reset the handle assembly 20 and the square shaft sleeve 30, the first matching part of the clutch block 23 and the second matching part of the square shaft sleeve 30 are always opposite, so that the clutch block 23 and the square shaft sleeve 30 can be effectively butted when the button 22 is pressed next time, and the unlocking is convenient.

For example, the square sleeve 30 is rotatable around the rotation axis L between a second initial position and a second rotation position, when the square sleeve 30 is at the second initial position, the first engagement portion and the second engagement portion are opposite and suitable for engagement and fixation, the square sleeve 30 does not drive the lock cylinder to rotate, and when the square sleeve 30 rotates to the second rotation position, the square sleeve 30 drives the lock cylinder to rotate to realize unlocking.

Therefore, according to the present embodiment, by providing the reset torsion spring 40, the reset torsion spring 40 can drive the square shaft sleeve 30 and/or the reset seat 24 to automatically reset, so as to realize the automatic reset function of the square shaft sleeve 30 and the reset seat 24, and the structure is simple, and the second matching portion of the square shaft sleeve 30 can be aligned with the first matching portion of the clutch block 23, so that the door lock can be effectively unlocked when the door lock needs to be unlocked.

According to the utility model discloses prevent cat eye lock 100 through set up button 22 on handle 21, through pressing button 22 to twist grip 21 can realize unblanking in the door, does not press button 22 then can not unblank in the door, from this, can prevent effectively that thief, thief from stretching into the hook handle from cat eye or glass window with iron wire or other hook-shaped instrument and opening the door, improves burglary-resisting door's security. Through setting up protruding muscle 221 and guide way, at the in-process of pressing button 22, protruding muscle 221 can play the guide effect to the removal of button 22, improves the stability that button 22 removed, simultaneously, through locating protruding muscle 221 in the guide way, protruding muscle 221 can also be through cooperating with the guide way, inject the rotation of button 22 in holding channel 211, thereby guarantee when handle 21 rotates, button 22 can rotate with handle 21 is synchronous. Through setting up reset torsion spring 40, reset torsion spring 40 can drive square shaft sleeve 30 and/or reset seat 24 automatic re-setting, realizes the automatic re-setting function of square shaft sleeve 30 and reset seat 24, and simple structure, and the second cooperation portion that can guarantee square shaft sleeve 30 aligns with the first cooperation portion of separation and reunion piece 23, guarantees that the lock can effectively unblank when needs are unblanked.

In an embodiment of the present invention, as shown in fig. 1, the reduction torsion spring 40 has a first force arm 41 and a second force arm 42, the first force arm 41 and the second force arm 42 extend outward along the radial direction of the reduction torsion spring 40, the first force arm 41 and the second force arm 42 are parallel to each other, and the first force arm 41 and the second force arm 42 are adjacently arranged in the circumferential direction of the reduction torsion spring 40, the panel 10 is provided with a convex positioning bump 11, and the first force arm 41 and the second force arm 42 are respectively located at two sides of the positioning bump 11. When the return torsion spring 40 is installed, the first force arm 41 and the second force arm 42 can now abut on both side surfaces of the positioning projection 11 in the circumferential direction of the return torsion spring 40, respectively.

Further, as shown in fig. 1 and with reference to fig. 5, the reset plate 24 is provided with a reset member (e.g., a reset screw 241, which will be described later), one end of the reset member (e.g., the outer end of the reset screw 241, which is shown in fig. 1) is connected to the reset plate 24, the other end of the reset member (e.g., the inner end of the reset screw 241, which is shown in fig. 1) extends toward the panel 10, and the other end of the reset member extends between the first force arm 41 and the second force arm 42, and the other end of the reset member (e.g., the inner end of the reset screw 241, which is shown in fig. 1) interacts with the first force arm 41 or the second force arm 42 to reset the reset plate 24. For example, when the handle assembly 20 is not rotated, the first force arm 41 and the second force arm 42 are respectively located at two sides of the resetting member in the circumferential direction of the resetting torsion spring 40, when the handle assembly 20 is rotated, the resetting member pushes the first force arm 41 to move away from the second force arm 42, so that the resetting torsion spring 40 is deformed, and when the handle assembly 20 is released, the first force arm 41 pushes the resetting base 24 to rotate back to restore the deformation until the resetting member restores to the position opposite to the radially inner side and the radially outer side of the positioning protrusion 11.

Further, as shown in fig. 1, the square shaft sleeve 30 is provided with a resetting protrusion 32 extending towards the panel 10, a free end of the resetting protrusion 32 extends between the first force arm 41 and the second force arm 42, and the free end of the resetting protrusion 32 interacts with the first force arm 41 or the second force arm 42 to reset the square shaft sleeve 30. For example, when the square sleeve 30 is not driven by the handle assembly 20 to rotate, the reset protrusion 32 is located between the first force arm 41 and the second force arm 42, that is, the first force arm 41 and the second force arm 42 are respectively located at two sides of the reset protrusion 32 in the circumferential direction of the reset torsion spring 40, when the square sleeve 30 is driven by the handle assembly 20 to rotate, the reset protrusion 32 pushes the first force arm 41 to move along the circumferential direction of the reset torsion spring 40 away from the second force arm 42, so that the reset torsion spring 40 deforms, when the handle assembly 20 is released, the reset torsion spring 40 deforms again, and the first force arm 41 pushes the reset protrusion 32 to rotate back until the reset protrusion 32 returns to the position opposite to the inside and outside in the radial direction of the positioning protrusion 11.

According to some embodiments of the present invention, as shown in fig. 1, the reset hole 242 is disposed on the reset seat 24, the reset member is a reset screw 241, the reset screw 241 is disposed in the reset hole 242, and the reset screw 241 extends between the first force arm 41 and the second force arm 42. Thus, the structure of the reset member can be simplified.

Further, as shown in fig. 1, the reset seat 24 may be provided with two reset holes 242, and the two reset holes 242 are symmetrically arranged on both sides of the reset seat 24 in the radial direction, for example, the upper and lower sides of the reset seat 24 where the two reset holes 242 are symmetrically arranged. Like this, for being suitable for the direction of opening the door of the different door bodies, when the direction of handle 21 needs to be changed, can take out reset screw 241 from reset hole 242 earlier, rotate 180 with handle assembly 20 again, install reset screw 241 to reset hole 242 in again, can realize the change of handle 21 direction, simple structure, convenient operation.

Further, as shown in fig. 1, a cantilever plate 33 is disposed on the square sleeve 30, the cantilever plate 33 extends outward away from the rotation axis L in a plane perpendicular to the rotation axis L, the reset boss 32 is connected to an outer end of the cantilever plate 33, an avoiding hole 331 is formed in the cantilever plate 33, the avoiding hole 331 penetrates through the cantilever plate 33 in a direction parallel to the rotation axis L, and the avoiding hole 331 and the reset screw 241 are opposite to each other in a direction parallel to the rotation axis L. That is to say, for the assembled door lock 100 for preventing cat eye, the avoiding hole 331 on the cantilever plate 33 of the square shaft sleeve 30 can expose the reset screw 241, that is, in the projection plane perpendicular to the rotation axis L, the reset screw 241 can be located in the avoiding hole 331, so that when the direction of the handle 21 needs to be changed, the square shaft sleeve 30 does not need to be disassembled, the square shaft sleeve 30 can be inserted into the avoiding hole 331 by using a disassembling tool, the reset screw 241 located in the avoiding hole 331 is screwed, the reset screw 241 is disassembled, then the handle assembly 20180 is rotated, the reset screw 241 is inserted into the reset hole 242 on the reset seat 24 through the avoiding hole 331 and screwed again, and the reversing of the handle 21 can be completed. Thereby, the commutation operation can be further simplified.

In some examples of the present invention, as shown in fig. 1, 5 and 6, the cantilever plate 33 has a first side surface and a second side surface oppositely arranged in the rotation direction of the handle assembly, the first side surface and the second side surface are sequentially arranged along the rotation direction (e.g. the first direction shown in fig. 6) when the handle assembly is unlocked, a side surface of the reset seat 24 facing the cantilever plate 33 (e.g. the outer side surface of the reset seat 24 shown in fig. 1) is formed with a raised anti-locking stud 243, the anti-locking stud 243 is located at a side of the second side surface of the cantilever plate 33, for example, the anti-locking stud 243 is located at a downstream side of the cantilever plate 33 in the first direction (e.g. the clockwise direction in fig. 6). The first direction is a rotation direction (e.g., clockwise rotation direction in fig. 6) of the handle assembly 20 during unlocking, and when the handle assembly 20 rotates in a direction (e.g., a second direction shown in fig. 5) opposite to the rotation direction (e.g., the first direction shown in fig. 6) during unlocking, the anti-locking stud 243 pushes the cantilever plate 33 to move by abutting against the second side surface to drive the reset stud 32 to rotate, so as to lock the lock body. Specifically, when the button 22 is not pressed, the clutch block 23 is separated from the square shaft sleeve 30, and when the handle 21 is rotated, the square shaft sleeve 30 does not move, but in the present embodiment, the reverse locking boss 243 is disposed on the reset seat 24, and when the handle 21 is rotated in the second direction, the handle 21 drives the reset seat 24 to rotate, the reverse locking boss 243 on the reset seat 24 moves towards the cantilever plate 33 in the second direction, and pushes the cantilever plate 33 to rotate in the second direction, the cantilever plate 33 drives the square shaft sleeve 30 to rotate in the second direction, and the square shaft sleeve 30 drives the lock cylinder to rotate in the second direction, so as to lock the lock body. Therefore, the lock body can be locked by rotating the handle 21 along the second direction without pressing the button 22, and the operation is simple and convenient.

In some examples, as shown in fig. 1 and 4, the outer peripheral surface of the square boss 30 is provided with a raised stop flange 34. The anti-peep hole door lock 100 may further include: the shaft sleeve pressing plate 50 is located on one side, away from the handle 21, of the reset seat 24, the shaft sleeve pressing plate 50 is fixed to the reset seat 24, a through hole 51 is formed in the shaft sleeve pressing plate 50, one end, away from the handle 21, of the square shaft sleeve 30 (for example, the outer end of the square shaft sleeve 30 shown in fig. 4) penetrates through the through hole 51, and the limiting flange 34 is located on one side, facing the reset seat 24, of the shaft sleeve pressing plate 50. Thereby, the sleeve pressing plate 50 can restrict the displacement of the square sleeve 30 in the direction of the rotation axis L, that is, the square sleeve 30 from moving in the outward direction shown in fig. 4.

Further, as shown in fig. 1, reduction seat 24 is fixedly connected to bushing press plate 50 by fasteners. Specifically, a first fixing hole 2431 may be formed in the counter-locking convex pillar 243, a second fixing hole 53 is formed in the shaft sleeve pressure plate 50, and the shaft sleeve pressure plate 50 penetrates through the second fixing hole 53 and the first fixing hole 2431 through a first screw 61 and is connected to the reset seat 24, so that the reset seat 24 and the shaft sleeve pressure plate 50 can be fixed and reliably connected.

Further, as shown in fig. 1, the locking lugs 243 may include two, and the two locking lugs 243 are symmetrically arranged about a first straight line, which is a straight line perpendicular to a line connecting centers of the two reset holes 242 in a projection plane perpendicular to the rotation axis L. Thus, when the handle assembly 20 is reversed, the handle assembly 20 with the changed direction can still realize that when the handle assembly 20 rotates along a second direction opposite to the first direction, the reverse locking stud 243 drives the reset stud 32 to rotate by pushing the cantilever plate 33 to move, so as to lock the lock body.

Alternatively, as shown in fig. 1, the reset seat 24 is formed with a positioning post 244, the sleeve pressing plate 50 is formed with a positioning hole 52, and the positioning post 244 is inserted into the positioning hole 52. Thus, in the process of assembling the shaft sleeve pressing plate 50 with the reset seat 24, the positioning post 244 can be inserted into the positioning hole 52, the shaft sleeve pressing plate 50 is positioned on the reset seat 24, and then the shaft sleeve pressing plate 50 is fixed on the reset seat 24 by the first screw 61 penetrating through the first fixing hole 2431 and the second fixing hole 53, so that the assembling efficiency can be improved.

According to some embodiments of the present invention, as shown in fig. 1 and 4, the anti-peep hole door lock 100 may further include a first bearing assembly 70a and a second bearing assembly 70b, the first bearing assembly 70a and the second bearing assembly 70b are respectively located at both sides of the panel 10 in the thickness direction (e.g., the inner side of the panel 10 and the outer side of the panel 10 shown in fig. 1), the first bearing assembly 70a is provided between the handle 21 and the panel 10, and the second bearing assembly 70b is provided between the reset seat 24 and the panel 10. That is, a first bearing assembly 70a is provided between the inner surface of the door panel and the handle 21, by which the handle 21 can be rotated with respect to the panel 10, and a second bearing assembly 70b is provided between the outer surface of the door panel and the reset seat 24, by which the reset seat 24 can be rotated with respect to the panel 10. Thus, the friction between the handle 21 and the return seat 24 and the panel 10 can be reduced, and the handle 21 can be rotated more smoothly.

Alternatively, as shown in fig. 1, any one of the first bearing assembly 70a and the second bearing assembly 70b includes: a plane bearing 71 and two bearing pads 72, the two bearing pads 72 being respectively located on both sides of the plane bearing 71 in the thickness direction, that is, the two bearing pads 72 being respectively located on both sides of the plane bearing 71 in the direction of the rotation axis L, for example, the two bearing pads 72 being respectively located on the front side and the rear side of the plane bearing 71.

According to some embodiments of the invention. As shown in fig. 1 and 4, the peep hole preventing door lock 100 may further include: the wave washer 80, the wave washer 80 stops between the reset seat 24 and the panel 10. Because the wave form gasket 80 has certain elastic deformation volume in the thickness direction, through setting up wave form gasket 80, can balance the assembly clearance between handle subassembly 20 and the panel 10, improve the assembly stability between handle subassembly 20 and the panel 10, avoid handle subassembly 20 to rock for the panel 10.

According to some embodiments of the present invention, as shown in fig. 4, the inner surface of the accommodating channel 211 is formed with a raised positioning boss 212, the positioning boss 212 extends along the circumferential direction of the accommodating channel 211, the button 22 is disposed on one side of the positioning boss 212 (e.g., the inner side of the positioning boss 212 shown in fig. 4) far away from the square shaft sleeve 30, the clutch block 23 is disposed on the other side of the positioning boss 212 (e.g., the outer side of the positioning boss 212 shown in fig. 4) facing the square shaft sleeve 30, and the clutch block 23 is fixed with the button 22 by the second screw 62. Through setting up location boss 212, not only can make things convenient for button 22 and separation and reunion piece 23 to fix a position the installation in the passageway 211 that holds of handle 21, improve assembly efficiency, and because button 22 and separation and reunion piece 23 are located the both sides of location boss 212 respectively, after button 22 and separation and reunion piece 23 fixed connection, location boss 212 can restrict button 22 and separation and reunion piece 23 and remove in the axis direction who holds passageway 211, avoid button 22 or separation and reunion piece 23 to drop out and hold passageway 211.

In one example, as shown in fig. 4, the clutch block 23 is provided with a first through hole 232, one end of the button 22 (e.g., the inner end of the button 22 shown in fig. 4) is formed with a first blind hole 222, and the second screw 62 extends into the first blind hole 222 through the first through hole 232 to fix the clutch block 23 to the button 22. Therefore, the structure is simple, and the connection is convenient and reliable.

In one example, as shown in fig. 4, the handle assembly 20 can further include a spring 25, the spring 25 being disposed within the receiving channel 211, e.g., the spring 25 being disposed over the button 22, one end of the spring 25 (e.g., the outer end of the spring 25 shown in fig. 4) abutting the locating boss 212, and the other end of the spring 25 (e.g., the inner end of the spring 25 shown in fig. 4) being secured to the other end of the button 22 (e.g., the inner end of the button 22 shown in fig. 4) distal from the clutch block 23. Therefore, when the button 22 is pressed, the button 22 can compress the spring 25 to deform the spring 25, and when the button 22 is released, the spring 25 can push the button 22 to move and reset to the initial position in order to restore the deformation, so that the automatic reset of the button 22 is realized.

In one embodiment, as shown in fig. 2, one end of the clutch block 23 connected to the button 22 (e.g., the inner end of the clutch block 23 shown in fig. 4) is formed as a stopper end 233, the cross-section of the stopper end 233 is non-circular, e.g., the cross-section of the stopper end 233 is a polygon, wherein any side of the polygon of the cross-section of the stopper end 233 may be a straight line segment or a curved line segment. A part of the accommodating channel 211 in the extending direction is formed into a limiting section, the limiting section is positioned on one side of the limiting boss facing the clutch block 23, the cross section of the limiting section is matched with the cross section of the limiting end 233, and the limiting end 233 is inserted into the limiting section to limit the transmission of the clutch block 23 relative to the handle 21. Therefore, when the handle 21 rotates, the handle 21 is in limit fit with the limit end 233 of the clutch block 23 through the limit section, and the clutch block 23 can be ensured to rotate synchronously through the handle 21.

In some embodiments of the present invention, as shown in fig. 1 and 2, the first engaging portion is formed as an engaging protrusion 231 extending toward the square shaft sleeve 30, the second engaging portion is formed as a recessed engaging groove 31, the engaging protrusion 231 is separated from the engaging groove 31 when the button 22 is at the initial position, a gap is provided between the clutch block 23 and the square shaft sleeve 30, and when the button 22 is at the pressing position, the engaging protrusion 231 is inserted into the engaging groove 31, so that the square shaft sleeve 30 is fixed to the clutch block 23. Therefore, the structure is simple, and the clutch block 23 and the square shaft sleeve 30 are conveniently connected and separated.

Preferably, the plurality of engagement protrusions 231 are arranged at intervals in the circumferential direction of the clutch piece 23, the plurality of engagement grooves 31 are provided, and the plurality of engagement grooves 31 and the plurality of engagement protrusions 231 are in one-to-one correspondence and are inserted. Therefore, the reliability of connection between the clutch block 23 and the square shaft sleeve 30 can be improved, and the clutch block 23 can stably drive the square shaft sleeve 30 to rotate.

In some embodiments, as shown in fig. 1 and 4, a first connection hole 213 is formed on the handle 21, a second connection hole 245 opposite to the first connection hole 213 is formed on the reset seat 24, and the reset seat 24 is fixed to the handle 21 by a third screw 63 through the first connection hole 213 and the second connection hole 245. The first connection holes 213 may be a plurality of, the plurality of first connection holes 213 are arranged on the handle 21 around the rotation axis L at intervals, the plurality of second connection holes 245 are a plurality of, and the plurality of second connection holes 245 correspond to the plurality of first connection holes 213 one to one, so that the connection reliability between the handle 21 and the reset seat 24 may be improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A peep-proof door lock, comprising:

a panel;

a handle assembly rotatably disposed on the panel, the handle assembly comprising:

a handle having a receiving channel formed therein extending along a rotational axis of the handle assembly, an inner surface of the receiving channel being formed with a recessed guide groove extending along the rotational axis,

a button, one end of which extends into the accommodating channel and is switched between an initial position and a pressed position, wherein a raised convex rib is formed on the peripheral wall of the button and can be movably matched in the guide groove,

the clutch block is arranged in the accommodating channel and fixed with one end of the button, a first matching part is arranged on the clutch block,

the reset seat is fixed with the handle;

the square shaft sleeve is movably arranged in the reset seat, one end, facing the clutch block, of the square shaft sleeve is provided with a second matching part, the first matching part and the second matching part are separated when the button is at the initial position, and when the button is pressed to the pressing position, the first matching part and the second matching part are matched to enable the square shaft sleeve and the clutch block to be relatively fixed;

the reset torsion spring is arranged on the panel, is connected with the Fang Zhoutao and the reset seat and is used for driving the square shaft sleeve and the reset seat to reset.

2. The door lock according to claim 1, wherein the reset torsion spring has a first force arm and a second force arm extending radially outward of the reset torsion spring, the first force arm and the second force arm are adjacently arranged in a circumferential direction of the reset torsion spring, a raised positioning protrusion is provided on the panel, and the first force arm and the second force arm are respectively located at two sides of the positioning protrusion;

the reset seat is provided with a reset piece, one end of the reset piece is connected with the reset seat, the other end of the reset piece extends towards the panel, the other end of the reset piece extends to a position between the first force arm and the second force arm, the other end of the reset piece is interacted with the first force arm or the second force arm to reset the reset seat,

the square shaft sleeve is provided with a reset convex column extending towards the panel, the free end of the reset convex column extends to a position between the first force arm and the second force arm, and the free end of the reset convex column interacts with the first force arm or the second force arm to reset the square shaft sleeve.

3. The door lock according to claim 2, wherein the reset seat is provided with a reset hole, the reset member is a reset screw, the reset screw is inserted into the reset hole and extends between the first force arm and the second force arm, wherein the reset seat is provided with two reset holes, the two reset holes are symmetrically arranged on two sides of the reset seat in the radial direction,

the square shaft sleeve is provided with a cantilever plate, the cantilever plate is perpendicular to the plane of the rotation axis and is far away from the rotation axis and extends outwards, the reset convex column is connected to the outer end of the cantilever plate, a avoiding hole which runs through the cantilever plate along the direction parallel to the rotation axis is formed in the cantilever plate, and the avoiding hole is opposite to the reset screw in the direction parallel to the rotation axis.

4. The door lock of claim 3, wherein the cantilever plate has a first side and a second side opposite to each other in the rotation direction of the handle assembly, the first side and the second side are sequentially arranged along the rotation direction of the handle assembly during unlocking, a convex reverse locking convex pillar is formed on the surface of the reset seat facing the cantilever plate, the reverse locking convex pillar is located on the side where the second side of the cantilever plate is located, and when the handle assembly rotates in the direction opposite to the rotation direction during unlocking, the reverse locking convex pillar pushes the cantilever plate to move through the second side to drive the reset convex pillar to rotate so as to lock the lock body.

5. The door lock according to claim 4, wherein the square boss is provided at an outer circumferential surface thereof with a protruding stopper flange, and further comprising: the shaft sleeve pressing plate is fixed with the reset seat and is located on one side, away from the handle, of the reset seat, a through hole is formed in the shaft sleeve pressing plate, one end, away from the handle, of the square shaft sleeve penetrates through the through hole, and the limiting flange is located on one side, facing towards the reset seat, of the shaft sleeve pressing plate.

6. The door lock according to claim 5, wherein the reverse locking protrusion is provided with a first fixing hole, the shaft sleeve pressing plate is provided with a second fixing hole, the shaft sleeve pressing plate is connected to the reset seat by a first screw passing through the second fixing hole and the first fixing hole,

the anti-locking convex columns comprise two anti-locking convex columns which are symmetrically arranged relative to a first straight line, and the first straight line is a straight line which is perpendicular to a connecting line of centers of the two reset holes in a projection plane perpendicular to the rotation axis.

7. The anti-peep hole door lock according to any one of claims 1-6, further comprising a first bearing assembly and a second bearing assembly, the first bearing assembly and the second bearing assembly being located on either side of the face plate in the thickness direction, the first bearing assembly being provided between the handle and the face plate, the second bearing assembly being provided between the reset seat and the face plate,

either one of the first bearing assembly and the second bearing assembly includes a flat bearing and two bearing pads located on both sides in a thickness direction of the flat bearing.

8. The anti-peep hole door lock according to any one of claims 1-6, further comprising a wave shaped washer, which is stopped between the reset seat and the panel.

9. The door lock according to any one of claims 1 to 6, wherein a raised positioning boss is formed on an inner surface of the receiving channel, the positioning boss extends along a circumferential direction of the receiving channel, the button is provided on a side of the positioning boss away from the square sleeve, the clutch block is provided on the other side of the positioning boss facing the square sleeve, and the clutch block is fixed to the button by a second screw;

the handle assembly further comprises a spring, one end of the spring is abutted to the positioning boss, and the other end of the spring is fixed to the other end, far away from the clutch block, of the button;

the clutch block is characterized in that one end, connected with the button, of the clutch block is formed into a limiting end, the cross section of the limiting end is non-circular, one part of the accommodating channel in the extending direction is formed into a limiting section, the limiting section is located on one side, facing the clutch block, of the limiting boss, the cross section of the limiting section is matched with the cross section of the limiting end, and the limiting end is inserted into the limiting section to limit transmission of the clutch block relative to the handle.

10. The door lock according to any one of claims 1 to 6, wherein the first engagement portion is formed as an engagement projection extending toward the square boss, and the second engagement portion is formed as a recessed engagement groove, the engagement projection being inserted into the engagement groove when the button is in the pressed position.

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