CN215168830U

CN215168830U - Locking structure of door handle

Info

Publication number: CN215168830U
Application number: CN202121031572.8U
Authority: CN
Inventors: 雷先鸣
Original assignee: Guangdong Gold Atom Security Technology Co ltd
Current assignee: Guangdong Gold Atom Security Technology Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-12-14
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a locking structure of door handle, including the front fixing base, back fixing base and front handle, back handle, through being equipped with the ball hole on the handle pivot, install the ball in the ball hole, the position that corresponds the ball hole in the fixing base is equipped with the ball groove, install the lock core or the back lock knob that can drive the ball slip and with the gomphosis of ball groove in the pivot, the lock shaft is hollow tubular structure, install the connection piece in the lock shaft, clutch mechanism is installed to the end of lock core, the one end and the clutch mechanism of connection piece are connected, the other end is connected with the end of back lock knob, make clutch mechanism and back lock knob rotate synchronously, when the key inserts the lock core, the key makes clutch mechanism rotate with the lock core synchronization, through rotating the key makes the back lock knob in the door rotate synchronously, thereby realize the inside and outside locking and unblock simultaneously, further perfect the locking function of handle, the user experience is improved.

Description

Locking structure of door handle

Technical Field

The utility model relates to a tool to lock, especially a locking structure of door handle.

Background

The same applicant of the present application filed a locking structure of a door lock handle 24/11/2020 with application number 2020227540288, which comprises a front fixing seat, a rear fixing seat, a front handle and a rear handle, wherein a ball hole is formed on a rotating shaft of the handle, a ball is installed in the ball hole, a ball groove is formed in the fixing seat corresponding to the ball hole, a lock core or a back locking knob which can drive the ball to slide and be embedded with the ball groove is installed in the rotating shaft, in an unlocking state, the ball is located in the ball hole and is not embedded with the ball groove, the handle can be rotated to open a door, in an locking state, the ball is driven by the lock core or the back locking knob to slide out the ball hole and be embedded with the ball groove, at the moment, the ball is in a fixed state, so that the handle can not rotate on the fixing seat, a locking function is realized, the structure is simple and reliable, the installation is convenient, the lock core and the back locking knob are respectively installed on the front handle and the rear handle, the internal structure of the lock body can be greatly saved, and the space occupied by the lock body is reduced; however, in the actual use process, the lock shaft is connected with the front handle and the rear handle to realize synchronous rotation, the lock cylinder and the back locking knob have no linkage function, when the back locking knob is rotated in the door to be locked, unlocking cannot be realized even if the lock cylinder is rotated outside the door, the use experience is greatly reduced, and further improvement needs to be carried out on the basis of the original application.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a locking structure of a door handle.

The utility model provides a technical scheme that its technical problem adopted is:

a locking structure of a door handle comprises a front fixing seat, a rear fixing seat, a front handle and a rear handle, wherein the front fixing seat is provided with a first rotating through hole, the rear fixing seat is provided with a second rotating through hole, the front handle is rotatably installed in the first rotating through hole through a first rotating shaft, the rear handle is rotatably installed in the second rotating through hole through a second rotating shaft, a lock shaft is installed between the first rotating shaft and the second rotating shaft, a lock cylinder cavity is axially arranged on the first rotating shaft, a first ball hole communicated with the lock cylinder cavity is formed in the outer side of the first rotating shaft, a first ball is slidably installed in the first ball hole, a first ball groove is formed in the position, corresponding to the first ball hole, of the inner side of the first rotating through hole, and a lock cylinder driving the first ball to slide and embedded with the first ball groove is installed in the lock cylinder cavity, the lock comprises a lock body, a first rotating shaft, a second rotating shaft, a first ball groove, a second ball groove, a first ball, a second ball groove, a first connecting piece, a second ball groove, a reverse locking knob, a lock shaft, a connecting piece and a clutch mechanism, wherein the first rotating shaft is axially provided with a knob cavity, the outer side of the second rotating shaft is provided with the second ball hole communicated with the knob cavity, the second ball hole is internally provided with a second ball, the inner side of the second rotating hole corresponds to the position of the second ball hole, the knob cavity is internally provided with the drive, the second ball slides and is embedded into the second ball groove, the lock shaft is of a hollow tubular structure, the connecting piece is installed in the lock shaft, the clutch mechanism is installed at the tail end of the lock cylinder, the other end of the reverse locking knob is connected with the tail end of the reverse locking knob, and the clutch mechanism is synchronously rotated with the reverse locking knob.

The clutch mechanism comprises a clutch sleeve, a clutch pin and a connecting sleeve, the tail end of the lock core is provided with a clutch hole communicated with the lock hole of the lock core, the inner side of the clutch hole is provided with a first limit groove, the clutch sleeve is arranged in the clutch hole in a sliding way, and the outer side of the clutch sleeve is provided with a limit bulge which is arranged in the first limit groove, the clutch pin is arranged in the clutch sleeve in a sliding way, the outer side of the clutch pin is sleeved with a compression spring, the compression spring is positioned between the clutch sleeve and the clutch pin, the end surface of the connecting sleeve is contacted with the hole surface of the clutch hole, a second limit groove is arranged at the position of the upper end surface of the connecting sleeve corresponding to the limit bulge, a return spring is arranged between the clutch sleeve and the connecting sleeve, the lower terminal surface of adapter sleeve is equipped with first connecting groove, the connection piece is installed in first connecting groove.

The inner side of the first connecting groove is provided with a bolt hole, the end part of the connecting sheet is provided with a connecting hole, and after assembly, the bolt hole is connected with the connecting hole through a bolt.

And the tail end of the clutch pin penetrates through the clutch sleeve and is provided with a limiting ring, and the limiting ring is contacted with the end surface of the clutch sleeve.

The end of the back locking knob is provided with a second connecting groove, and the connecting piece is installed in the second connecting groove.

The opening edge in knob chamber is equipped with annular arc groove, first constant head tank and second constant head tank respectively with the both ends symmetry in annular arc groove sets up, the locating pin is installed to one side of back lock knob, and slidable mounting is installed to the opposite side has the ball, the ball with install the ball spring between the back lock knob, after the assembly, the tip of locating pin is located the annular arc inslot.

The utility model has the advantages that: the utility model discloses a lock axle of hollow tubular structure, install the connection piece in the lock axle, clutch mechanism is installed to the end of lock core, the one end and the clutch mechanism of connection piece are connected, the end-to-end connection of the other end and anti-lock knob, make clutch mechanism and anti-lock knob realize synchronous rotation, when the key inserts the lock core, the key makes clutch mechanism rotate with the lock core is synchronous, anti-lock knob synchronous rotation in making the door through rotating the key, thereby realize the inside and outside locking and the unblock simultaneously of door, further perfect the locking function of handle, improve user experience.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is an exploded schematic view of the present invention;

FIG. 4 is an exploded schematic view of the front handle;

FIG. 5 is an exploded schematic view of the rear handle;

FIG. 6 is a schematic structural view of the anti-lock knob;

fig. 7 is a schematic view of the structure of the lock shaft.

Detailed Description

Referring to fig. 1 to 7, a locking structure of a door handle comprises a front fixing seat 1, a rear fixing seat 2, a front handle 3 and a rear handle 4, wherein the front fixing seat 1 is provided with a first rotating through hole 5, the rear fixing seat 2 is provided with a second rotating through hole 6, the front handle 3 is rotatably installed in the first rotating through hole 5 through a first rotating shaft 7, the rear handle 4 is rotatably installed in the second rotating through hole 6 through a second rotating shaft 8, a locking shaft 31 is installed between the first rotating shaft 7 and the second rotating shaft 8, the first rotating shaft 7 is axially provided with a lock cylinder cavity 9, the outer side of the first rotating shaft 7 is provided with a first ball hole 10 communicated with the lock cylinder cavity 9, a first ball 11 is slidably installed in the first ball hole 10, and a first ball groove 12 is arranged at the inner side of the first rotating through hole 5 corresponding to the position of the first ball hole 10, a lock cylinder 13 which drives the first ball 11 to slide and is embedded with the first ball groove 12 is arranged in the lock cylinder cavity 9, a knob cavity 14 is axially arranged on the second rotating shaft 8, a second ball hole 15 communicated with the knob cavity 14 is arranged on the outer side of the second rotating shaft 8, a second ball 16 is arranged in the second ball hole 15, a second ball groove 17 is arranged on the inner side of the second rotating through hole 6 corresponding to the second ball hole 15, a back locking knob 18 which drives the second ball 16 to slide and is embedded with the second ball groove 17 is arranged in the knob cavity 14, the lock shaft 31 is of a hollow tubular structure, a connecting piece 19 is arranged in the lock shaft 31, a clutch mechanism is arranged at the tail end of the lock cylinder 13, one end of the connecting piece 19 is connected with the clutch mechanism, the other end of the connecting piece is connected with the tail end of the back locking knob 18, so that the clutch mechanism and the back locking knob 18 synchronously rotate, when the key is inserted into the lock cylinder, the key enables the clutch mechanism to rotate synchronously with the lock cylinder, and the anti-locking knob in the door rotates synchronously by rotating the key, so that the door can be locked and unlocked simultaneously inside and outside the door, the locking function of the handle is further improved, and the use experience of a user is improved.

The clutch mechanism comprises a clutch sleeve 20, a clutch pin 21 and a connecting sleeve 22, a clutch hole 23 communicated with a lock hole of the lock cylinder 13 is arranged at the tail end of the lock cylinder, a first limit groove 24 is arranged on the inner side of the clutch hole 23, the clutch sleeve 20 is slidably mounted in the clutch hole 23, a limit bulge 25 is arranged on the outer side of the clutch sleeve 20, the limit bulge 25 is mounted in the first limit groove 24, the clutch pin 21 is slidably mounted in the clutch sleeve 20, a compression spring 26 is sleeved on the outer side of the clutch sleeve 20, the compression spring 26 is positioned between the clutch sleeve 20 and the clutch pin 21, the end surface of the connecting sleeve 22 is in contact with the hole surface of the clutch hole 23, a second limit groove 27 is arranged at the position of the upper end surface of the connecting sleeve 22 corresponding to the limit bulge 25, a reset spring 28 is mounted between the clutch sleeve 20 and the connecting sleeve 22, a first connecting groove 29 is arranged on the lower end surface of the connecting sleeve 22, the connecting piece 19 is installed in the first connecting groove 29, and the working principle of the embodiment is as follows: in the initial state, the clutch sleeve is pushed into the clutch hole through the reset spring, the clutch sleeve is separated from the connecting sleeve, the lock cylinder and the connecting sleeve cannot synchronously rotate, when a key is inserted into the lock cylinder, the tail end of the key pushes the clutch pin, the clutch pin axially moves along the clutch sleeve and compresses the compression spring, the clutch sleeve is simultaneously pushed to move towards the connecting sleeve through the compression spring, the limiting protrusion is embedded in the second limiting groove, the clutch sleeve is connected with the lock cylinder and the connecting sleeve, the connecting sleeve can synchronously rotate with the connecting sleeve by rotating the lock cylinder through the key, the reverse locking knob synchronously rotates through the connecting sheet, synchronous locking or unlocking inside and outside the door is realized, after the key is pulled out, the clutch pin is returned by the compression spring, the clutch sleeve is returned and reset by the reset spring to be separated from the connecting sleeve, the locking function of the handle is further perfected, and the use experience of a user is improved.

The inner side of the first connecting groove 29 is provided with a bolt hole 30, the end part of the connecting sheet 19 is provided with a connecting hole, after assembly, the bolt hole 30 is connected with the connecting hole through a bolt 31, the connecting and fixing effects are achieved, the connecting sheet is prevented from falling off, and the structure is simple and reliable.

The tail end of the clutch pin 21 penetrates through the clutch sleeve 20 and is provided with a limiting ring 32, the limiting ring 32 is in contact with the end face of the clutch sleeve 20, the sliding stroke of the clutch pin in the clutch sleeve is limited, and meanwhile, the fixing effect is achieved.

The end of the back locking knob 18 is provided with a second connecting groove 39, and the connecting piece 19 is installed in the second connecting groove 39.

The opening edge of the knob cavity 14 is provided with an annular arc groove 33, a first positioning groove 34 and a second positioning groove 35, the first positioning groove 34 and the second positioning groove 35 are respectively arranged symmetrically with two ends of the annular arc groove 33, one side of the counter lock knob 18 is provided with a positioning pin 36, the other side of the counter lock knob is provided with a ball 37, a ball spring 38 is arranged between the ball 37 and the counter lock knob 18, after assembly, the end part of the positioning pin 36 is positioned in the annular arc groove 33, in the embodiment, the rotation angle of the counter lock knob is 90 degrees, so the radian of the annular arc groove is also 90 degrees, the included angle between the first positioning groove and the second positioning groove is 90 degrees, the positioning pin is positioned in the annular arc groove to limit the rotation angle of the counter lock knob, when the rotating end part of the counter lock knob, the ball can roll into the first positioning groove or the second positioning groove to play a positioning role, prevent that the anti-lock knob from excessively loosening and producing the rotation.

The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.

Claims

1. A locking structure of a door handle comprises a front fixing seat (1), a rear fixing seat (2), a front handle (3) and a rear handle (4), wherein the front fixing seat (1) is provided with a first rotating through hole (5), the rear fixing seat (2) is provided with a second rotating through hole (6), the front handle (3) is rotatably installed in the first rotating through hole (5) through a first rotating shaft (7), the rear handle (4) is rotatably installed in the second rotating through hole (6) through a second rotating shaft (8), a lock shaft (31) is installed between the first rotating shaft (7) and the second rotating shaft (8), a lock cylinder cavity (9) is axially arranged on the first rotating shaft (7), a first ball hole (10) communicated with the lock cylinder cavity (9) is arranged on the outer side of the first rotating shaft (7), and a first ball (11) is slidably installed in the first ball hole (10), the inner side of the first rotating through hole (5) is provided with a first ball groove (12) corresponding to the position of the first ball hole (10), a lock cylinder (13) which drives the first ball (11) to slide and is embedded with the first ball groove (12) is arranged in the lock cylinder cavity (9), a knob cavity (14) is axially arranged on the second rotating shaft (8), a second ball hole (15) communicated with the knob cavity (14) is arranged on the outer side of the second rotating shaft (8), a second ball (16) is arranged in the second ball hole (15), a second ball groove (17) is arranged on the inner side of the second rotating through hole (6) corresponding to the position of the second ball hole (15), and a reverse locking knob (18) which drives the second ball (16) to slide and is embedded with the second ball groove (17) is arranged in the knob cavity (14), and is characterized in that the lock shaft (31) is of a hollow tubular structure, a connecting piece (19) is installed in the lock shaft (31), a clutch mechanism is installed at the tail end of the lock cylinder (13), one end of the connecting piece (19) is connected with the clutch mechanism, and the other end of the connecting piece is connected with the tail end of the counter lock knob (18) to enable the clutch mechanism and the counter lock knob (18) to rotate synchronously.

2. The locking structure of a door handle according to claim 1, wherein the clutch mechanism comprises a clutch sleeve (20), a clutch pin (21) and a connecting sleeve (22), the end of the lock cylinder (13) is provided with a clutch hole (23) communicated with the lock hole thereof, the inner side of the clutch hole (23) is provided with a first limit groove (24), the clutch sleeve (20) is slidably mounted in the clutch hole (23), the outer side of the clutch sleeve (20) is provided with a limit bulge (25), the limit bulge (25) is mounted in the first limit groove (24), the clutch pin (21) is slidably mounted in the clutch sleeve (20), the outer side is sleeved with a compression spring (26), the compression spring (26) is positioned between the clutch sleeve (20) and the clutch pin (21), and the end surface of the connecting sleeve (22) is in contact with the hole surface of the clutch hole (23), the upper end face of connecting sleeve (22) corresponds the position of spacing arch (25) is equipped with second spacing groove (27), install reset spring (28) between clutch sleeve (20) and connecting sleeve (22), the lower terminal surface of connecting sleeve (22) is equipped with first connecting groove (29), connection piece (19) are installed in first connecting groove (29).

3. The locking structure of a door handle according to claim 2, wherein a latch hole (30) is formed at an inner side of the first coupling groove (29), a coupling hole is formed at an end of the coupling piece (19), and the latch hole (30) is coupled to the coupling hole by a latch (31) after assembly.

4. The locking structure of a door handle according to claim 2, wherein a retainer ring (32) is installed after the distal end of the clutch pin (21) passes through the clutch collar (20), and the retainer ring (32) is in contact with the end surface of the clutch collar (20).

5. The locking structure of a door handle according to claim 1, wherein the end of the back locking knob (18) is provided with a second coupling groove (39), and the coupling piece (19) is fitted in the second coupling groove (39).

6. The locking structure of a door handle according to claim 1, wherein the opening edge of the knob cavity (14) is provided with an annular arc groove (33), a first positioning groove (34) and a second positioning groove (35), the first positioning groove (34) and the second positioning groove (35) are respectively arranged symmetrically with two ends of the annular arc groove (33), one side of the anti-locking knob (18) is provided with a positioning pin (36), the other side of the anti-locking knob is provided with a sliding ball (37), a ball spring (38) is arranged between the sliding ball (37) and the anti-locking knob (18), and after assembly, the end part of the positioning pin (36) is positioned in the annular arc groove (33).