CN213898459U

CN213898459U - Transmission mechanism for preventing cat eye from unlocking

Info

Publication number: CN213898459U
Application number: CN202022731021.4U
Authority: CN
Inventors: 余吉来
Original assignee: Shenzhen Kinlong Hbs Smart Technology Co ltd
Current assignee: Shenzhen Kinlong Hbs Smart Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-06
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a prevent drive mechanism that cat eye unblanked belongs to the technical field of intelligent lock. The utility model discloses a prevent drive mechanism that cat eye unblanked includes the rear panel main part, sets up free handle in the rear panel main part, free handle reset assembly, separation and reunion subassembly and the free rocking arm of square bar, free handle and the cooperation of free handle reset assembly, separation and reunion subassembly and the free rocking arm cooperation of square bar, separation and reunion subassembly and square bar free rocking arm are in the connection status and rotate free handle simultaneously when, the free rocking arm of square bar rotates through the square shaft of unblanking that drives AND gate internal lock body coupling and realizes unblanking. The utility model discloses a prevent drive mechanism that cat eye unblanked only when separation and reunion subassembly and the free rocking arm of square bar are connected, rotate free handle and just can unblank, otherwise free handle is in free state to prevent that lawless persons from opening the lock through the cat eye.

Description

Transmission mechanism for preventing cat eye from unlocking

Technical Field

The utility model belongs to the technical field of the intelligence lock, in particular to prevent drive mechanism that cat eye unblanked.

Background

Generally, a cat eye is usually arranged on the door panel so that a resident can observe a visitor. But the cat eye also provides convenience for lawbreakers to crime, and lawbreakers unlock through the cat eye and enter the household for theft, so that the property safety and the personal safety of residents cannot be guaranteed.

The cat eye structure is prevented to intelligence lock on the market at present has following problem: the fixed jackscrew that adopts the side to connect of handle is fixed, and this kind of structure equipment is complicated, and the connection jackscrew pine takes off easily appears among the practical process, and the panel is extracted to the handle to lead to the risk that can't open the lock in the follow door.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent drive mechanism that cat eye unblanked can solve one or more among the above-mentioned technical problem.

The utility model discloses a prevent drive mechanism that cat eye unblanked includes the rear panel main part, sets up free handle in the rear panel main part, free handle reset assembly, separation and reunion subassembly and the free rocking arm of square bar, free handle and the cooperation of free handle reset assembly, separation and reunion subassembly and the free rocking arm cooperation of square bar, separation and reunion subassembly and square bar free rocking arm are in the connection status and rotate free handle simultaneously when, the free rocking arm of square bar rotates through the square shaft of unblanking that drives AND gate internal lock body coupling and realizes unblanking.

Through adopting above-mentioned technical scheme, only when clutch assembly and the free rocking arm of square bar are connected, rotate free handle and just can unblank, otherwise free handle is in free state to prevent that lawless persons from opening the lock through the cat eye.

In some embodiments, the free handle return assembly comprises a free handle return tumbler and a free handle return torsion spring, the back panel body defines a first through-hole, the free handle return tumbler passes through the first through-hole to engage the free handle, and the free handle return torsion spring is positioned on a side of the back panel body adjacent to the free handle return tumbler.

Through adopting above-mentioned technical scheme, free handle drives free handle reset rocking arm and rotates and reset through free handle reset torsional spring.

In some embodiments, the release handle return tumbler comprises an annular cap portion having a second through hole formed at a middle position thereof and a connection shaft provided at a side close to the release handle, the connection shaft having a third through hole axially formed therethrough, the connection shaft of the release handle return tumbler passing through the first through hole to be engaged with the release handle.

In some embodiments, a limiting groove is formed in the outer side wall of the connecting shaft, a limiting block is arranged on the inner wall of the free handle, the connecting shaft is sleeved in the free handle, and the limiting groove is matched with the limiting block.

By adopting the technical scheme, the free handle is driven to reset the rotating arm to rotate when rotating.

In some embodiments, the clutch assembly comprises a free button and an unlocking square rod, the free button is installed in an installation hole of the free handle, the unlocking square rod comprises a square portion and a shaft portion, the square portion is arranged at one end of the shaft portion, the square portion is located in the second through hole and matched with a free rotating arm of the square rod, the shaft portion penetrates through the third through hole to abut against the free button, and a free button return spring is sleeved on the shaft portion.

By adopting the technical scheme, the unlocking square rod and the square rod free rotating arm are connected and separated.

In some embodiments, the square bar free rotating arm is fixed on the rear panel main body through a protection plate, a square bar rotating shaft is arranged on the square bar free rotating arm, a square groove is axially arranged on the square bar rotating shaft, and the square bar rotating shaft extends into the second through hole so that the square groove is matched with the square portion.

Through adopting above-mentioned technical scheme, press free button, free button promotes the unblock square pole, and the square form portion of unblock square pole links together with the square groove closure of the free rocking arm of square pole, rotates free handle, realizes unblanking.

In some embodiments, the end of the shaft portion remote from the square portion is provided with a free button pad and an E-shaped snap ring, and the end of the free button return spring is locked in the free button by the button pad and the E-shaped snap ring.

Through adopting above-mentioned technical scheme, free button resets under free button reset spring's effect.

Compared with the prior art, the utility model discloses a prevent drive mechanism that cat eye unblanked only when separation and reunion subassembly and the free rocking arm of square bar are connected, rotate free handle and could unblank, otherwise free handle is in free state to prevent that lawless persons from opening the lock through the cat eye.

Drawings

Fig. 1 is a schematic structural view of a transmission mechanism for preventing the cat eye from unlocking according to the present invention;

fig. 2 is an exploded schematic view of the transmission mechanism for preventing the peep hole from unlocking according to the present invention;

FIG. 3 is a cross-sectional view of the driving mechanism for preventing the peep hole from unlocking;

fig. 4 is a schematic structural view of the back panel main body of the transmission mechanism for preventing the peep hole from unlocking;

fig. 5 is a schematic structural view of a free handle reset rotating arm of the transmission mechanism for preventing the cat eye from unlocking;

fig. 6 is the structure schematic diagram of the square rod free rotating arm of the transmission mechanism for preventing the cat eye from unlocking.

Reference numerals in the drawings indicate: the rear panel main part 1, the guard plate 11, first through-hole 12, annular wall 13, first spacing post 14, spacing post 15 of second, free handle 2, free handle dress trim cover 21, handle portion 22, handle pivot 23, stopper 24, free handle reset rocking arm 3, cyclic annular lid 31, second through-hole 32, connecting axle 33, third through-hole 331, spacing groove 332, first shifting block 311, second shifting block 312, free handle reset torsion spring 4, free button 5, free button reset spring 6, unblock square bar 7, square portion 71, axial portion 72, square bar free rocking arm 8, square bar pivot 81, square groove 82, free button gasket 9, E type snap ring 10, M8X 16 machine tooth cup head hexagon socket head screw 16.

Detailed Description

To facilitate understanding of the present invention by those skilled in the art, the present invention will be further described with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Fig. 1 to 6 schematically show a transmission mechanism for preventing a cat eye from unlocking according to the present invention.

As shown in fig. 1 to 6, the utility model discloses a prevent drive mechanism that cat eye unblanked includes rear panel main part 1 and the guard plate 11 that is located rear panel main part 1, sets up free handle 2, free handle reset assembly, clutch assembly and the free rocking arm 8 of square pole on the rear panel main part 1. Wherein, the back panel main body 1 is provided with a first through hole 12. The free handle 2 includes a free handle decorative cover 21, a handle portion 22 and a handle rotation shaft 23. The square bar dissociating rotating arm 8 is fixed on the rear panel body 1 through a protection plate 11.

The free handle reset component comprises a free handle reset rotating arm 3 and a free handle reset torsion spring 4. The free handle reset rotating arm 3 and the free handle 2 are arranged on the back panel main body 1 through an M8X 16 machine tooth cup head hexagon socket head cap screw 16. The free handle reset rotating arm 3 passes through the first through hole 12 to be matched with the handle rotating shaft 23 of the free handle 2. Specifically, the release handle return tumbler 3 comprises an annular cap 31, a second through hole 32 is provided at a middle position of the annular cap 31 and a connecting shaft 33 is provided at a side close to the release handle 2, the connecting shaft 33 is provided with a third through hole 331 penetrating the second through hole 32 in the axial direction, and the diameter of the third through hole 331 is smaller than that of the second through hole 32. The connecting shaft 33 of the free handle reset rotating arm 3 passes through the first through hole 12 to be matched with the handle rotating shaft 23 of the free handle 2. Preferably, a limiting groove 332 is formed in the outer side wall of the connecting shaft 33, a limiting block 24 is formed in the inner wall of the handle rotating shaft 23, the connecting shaft 33 is sleeved in the free handle 2, and the limiting groove 332 is matched with the limiting block 24, so that the free handle 2 is driven to rotate the free handle reset rotating arm 3 when rotating.

The free handle reset torsion spring 4 is positioned between the rear panel main body 1 and the free handle reset rotating arm 3. Specifically, the rear panel body 1 is provided with an annular wall 13 at the outer side of the first through hole 12 near the free handle return rotating arm 3, and the free handle return torsion spring 4 is sleeved on the annular wall 13. The rear panel main body 1 is provided with a first limiting column 14 and a second limiting column 15 at two sides close to the annular wall 13 respectively, and two ends of the free handle reset torsion spring 4 are positioned between the first limiting column 14 and the second limiting column 15. The first limit column 14 and the second limit column 15 are used for limiting the moving range of the free handle reset torsion spring 4. The annular cover portion 31 of the release handle return tumbler 3 is provided with a first shifting block 311 and a second shifting block 312. The free handle 2 is rotated downwards, the free handle 2 drives the free handle reset rotating arm 3, the first shifting block 311 on the free handle reset rotating arm 3 stirs one end of the free handle reset torsion spring 4, the other end of the free handle reset torsion spring 4 abuts against the second limiting column 15, and the free handle reset torsion spring 4 contracts; the free handle 2 is loosened, and the free handle 2 and the free handle return rotating arm 3 are returned under the restoring force of the free handle return spring.

The clutch assembly includes a release button 5 and an unlocking square bar 7, and the release button 5 is installed in a mounting hole of a handle rotating shaft 23 of the release handle 2 and is positioned by a release handle decorative cover 21. The unlocking square bar 7 includes a square portion 71 and a shaft portion 72, the square portion 71 is disposed at one end of the shaft portion 72, the square portion 71 is located in the second through hole 32 and is engaged with the square bar release rotating arm 8, and the shaft portion 72 passes through the third through hole 331 and abuts against the release button 5. Specifically, a square rod rotating shaft 81 is arranged on the square rod rotating arm, a square groove 82 is arranged on the square rod rotating shaft 81 along the axial direction, and the square rod rotating shaft 81 extends into the second through hole 32, so that the square groove 82 is matched with the square portion 71. The free button 5 is pressed, the free button 5 pushes the unlocking square rod 7, the square part 71 of the unlocking square rod 7 is connected with the square groove 82 of the square rod free rotating arm 8 in a locking mode, the free handle 2 is rotated, and unlocking is achieved. Further, the shaft portion 72 of the unlocking square bar 7 is fitted with the release button return spring 6, and the release button return spring 6 is conical. The end of the shaft part 72 far away from the square part 71 is provided with a free button gasket 9 and an E-shaped snap ring 10, the small end of the free button return spring 6 is locked in the free button 5 through the button gasket and the E-shaped snap ring 10, and the large end of the free return spring 6 can abut against the free handle return rotating arm 3.

In a natural state, the unlocking square rod 7 is separated from the square rod free rotating arm 8, and the free handle 2 idles and cannot be unlocked. When the lock is unlocked, the free button 5 is pressed, the free button reset spring 6 is compressed, the free button 5 pushes the unlocking square rod 7 to be connected with the square rod free rotating arm 8 and simultaneously rotates the free handle 2, the free handle 2 drives the free handle reset rotating arm 3, the free handle reset rotating arm 3 stirs the free handle reset torsion spring 4 to contract and drive the unlocking square rod 7 and the square rod free rotating arm 8 to simultaneously rotate, and the square rod free rotating arm 8 realizes unlocking by driving the unlocking square shaft connected with the lock body in the door to rotate; when the press is released, the free button 5 is reset under the action of the free button reset spring 6 and drives the unlocking square rod 7 to be separated from the square rod free rotating arm 8, and the free handle 2 is in an idle running state.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a prevent drive mechanism that cat eye unblanked which characterized in that: including the rear panel main part, set up free handle, free handle reset assembly, clutch assembly and the free rocking arm of square bar in the rear panel main part, free handle with free handle reset assembly cooperation, clutch assembly with the free rocking arm cooperation of square bar, clutch assembly with the free rocking arm of square bar is in connection status and rotates simultaneously during free handle, the free rocking arm of square bar is rotated through the square shaft that unblanks that drives with the internal lock body coupling of AND gate and is realized unblanking.

2. The transmission mechanism for preventing the cat eye from unlocking according to claim 1, wherein: the free handle reset assembly comprises a free handle reset rotating arm and a free handle reset torsion spring, a first through hole is formed in the rear panel body, the free handle reset rotating arm penetrates through the first through hole and is matched with the free handle, and the free handle reset torsion spring is located on one side of the free handle reset rotating arm, which is close to the rear panel body.

3. The transmission mechanism for preventing the cat eye from unlocking according to claim 2, wherein: the free handle reset rotating arm comprises an annular cover part, a second through hole is formed in the middle of the annular cover part, a connecting shaft is arranged on one side close to the free handle, a third through hole penetrating through the second through hole is formed in the connecting shaft in the axial direction, and the connecting shaft of the free handle reset rotating arm penetrates through the first through hole to be matched with the free handle.

4. The transmission mechanism for preventing the cat eye from unlocking according to claim 3, wherein: set up the spacing groove on the lateral wall of connecting axle, set up the stopper on the inner wall of free handle, the connecting axle cover is established in free handle, the spacing groove with the stopper cooperation.

5. The transmission mechanism for preventing the cat eye from unlocking according to claim 3, wherein: clutch assembly is including free button and unblock square bar, free button installation in the mounting hole of free handle, unblock square bar includes square form portion and axial region, square form portion sets up the one end of axial region, square form portion is located in the second through-hole and with the free rocking arm cooperation of square bar, the axial region passes the third through-hole with free button butt, free button reset spring is established to the cover on the axial region.

6. The transmission mechanism for preventing the cat eye from unlocking according to claim 5, wherein: the free rocking arm of square bar passes through the guard plate to be fixed in the rear panel main part, set up the square bar pivot on the free rocking arm of square bar, the square bar pivot sets up square groove along the axial, the square bar pivot stretches into in the second through-hole, make the square groove with the cooperation of square form portion.

7. The transmission mechanism for preventing the cat eye from unlocking according to claim 5, wherein: the one end that the axial region kept away from square portion sets up free button gasket and E type snap ring, free button reset spring's one end is passed through the button gasket with E type snap ring lock dress is in the free button.